/* roulang page: index */
:root{
  --color-ink:#162B27;
  --color-primary:#1D4A3E;
  --color-primary-900:#0F2B25;
  --color-accent:#C98A3D;
  --color-accent-2:#EFC77C;
  --color-bg:#F8F6F0;
  --color-surface:#FFFFFF;
  --color-line:#E4DFD4;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Roboto Condensed",sans-serif;
  --shadow-card:0 6px 18px rgba(20,45,38,.06);
  --shadow-float:0 18px 40px rgba(20,45,38,.14);
  --radius-card:16px;
  --radius-lg:24px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s ease,opacity .2s ease,background .2s ease,box-shadow .2s ease,transform .2s ease}
button{font-family:var(--font-cn);cursor:pointer}
body{font-family:var(--font-cn);font-size:16px;line-height:1.8;color:var(--color-ink);background:var(--color-bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{line-height:1.4;color:var(--color-ink);font-weight:600}
h1{font-size:44px;letter-spacing:-.5px}
h2{font-size:32px}
h3{font-size:22px}
p{margin-bottom:1rem;line-height:1.8}
.container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.dark-bg{background:linear-gradient(135deg,var(--color-primary-900) 0%,var(--color-primary) 75%,var(--color-accent) 140%)}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.text-muted{color:rgba(22,43,39,.62)}
.text-accent{color:var(--color-accent)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;letter-spacing:.08em;color:var(--color-accent);margin-bottom:16px;font-weight:600}
.eyebrow-line{width:28px;height:1px;background:var(--color-line)}
.gold-line{width:36px;height:2px;background:linear-gradient(90deg,var(--color-accent),var(--color-accent-2));border-radius:2px;margin:24px 0}
.content-rich{max-width:100%}
/* 通用按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:10px;font-size:16px;font-weight:600;transition:background .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;line-height:1;white-space:nowrap;border:1px solid transparent}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-accent{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}
.btn-accent:hover{background:#a96e2c;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-float)}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-primary:hover{background:var(--color-primary-900);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-float)}
.btn-outline-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.42);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-2px);color:#fff}
.btn-outline-dark{background:transparent;border-color:var(--color-primary);color:var(--color-primary)}
.btn-outline-dark:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}
.btn-ghost-white{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost-white:hover{background:#fff;color:var(--color-primary-900);transform:translateY(-2px)}
/* 顶部信息条 */
.topbar{background:var(--color-primary-900);color:rgba(255,255,255,.78);font-size:13px;padding:7px 0;line-height:1.4}
.topbar-inner{display:flex;justify-content:flex-end;align-items:center;gap:22px}
.topbar .gb{opacity:.7}
/* 导航 */
.site-header{position:fixed;top:33px;left:0;right:0;height:72px;background:rgba(255,255,255,.6);border-bottom:1px solid transparent;z-index:100;transition:top .28s ease,background .28s ease,border-color .28s ease,box-shadow .28s ease}
.site-header.scrolled{top:0;background:rgba(255,255,255,.85);border-bottom-color:var(--color-line);box-shadow:0 8px 24px rgba(20,45,38,.05);backdrop-filter:blur(16px)}
.header-fixed{height:104px}
.nav-flex{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand-logo{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--color-primary-900),var(--color-primary) 70%,var(--color-accent));position:relative;display:inline-flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.brand-mark::after{content:"";width:14px;height:14px;border-radius:5px;background:linear-gradient(135deg,var(--color-accent-2),var(--color-accent));opacity:.92}
.brand-word{font-size:22px;font-weight:600;letter-spacing:.01em;color:var(--color-ink);line-height:1.2}
.brand-official{color:var(--color-accent);font-weight:700}
.brand-sub{display:block;font-size:10px;line-height:1;color:rgba(255,255,255,.55);letter-spacing:.2em;text-transform:uppercase;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:22px;list-style:none;margin:0}
.nav-links a.nav-item{position:relative;font-size:15px;font-weight:500;color:rgba(22,43,39,.82);padding:6px 2px;white-space:nowrap}
.nav-links a.nav-item::after{content:"";position:absolute;left:50%;bottom:-3px;width:6px;height:6px;border-radius:50%;background:var(--color-accent);transform:translateX(-50%) scale(0);transition:transform .2s ease,opacity .2s ease;opacity:0}
.nav-links a.nav-item:hover,a.nav-item:focus{color:var(--color-primary);opacity:1}
.nav-links a.nav-item.active{color:var(--color-primary);font-weight:600}
.nav-links a.nav-item.active::after{transform:translateX(-50%) scale(1);opacity:1}
.nav-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.nav-cta{height:38px;padding:0 18px;border-radius:12px}
.menu-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:transparent;border:1px solid var(--color-line);border-radius:12px}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--color-ink);margin:5px auto;transition:transform .2s ease,opacity .2s ease}
.menu-toggle:hover{background:var(--color-bg)}
/* mobile drawer */
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(82vw,360px);background:var(--color-primary-900);color:#fff;padding:88px 28px 40px;transform:translateX(100%);transition:transform .34s ease;z-index:199;box-shadow:-18px 0 50px rgba(15,43,37,.42)}
.mobile-drawer.open{transform:translateX(0)}
.drawer-menu{display:flex;flex-direction:column;gap:8px}
.drawer-menu a{color:rgba(255,255,255,.85);font-size:17px;font-weight:500;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.09)}
.drawer-menu a.active,.drawer-menu a:hover{color:var(--color-accent-2)}
.drawer-close{position:absolute;top:26px;right:24px;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;font-size:22px;display:flex;align-items:center;justify-content:center}
.drawer-close:hover{background:rgba(255,255,255,.14)}
.drawer-note{margin-top:32px;color:rgba(255,255,255,.5);font-size:13px;line-height:1.7}
/* 首页各区块 */
/* HERO */
.hero-section{position:relative;background:linear-gradient(to bottom,rgba(15,43,37,.78) 0%,rgba(29,74,62,.55) 34%,rgba(29,74,62,.32) 78%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;color:#fff;overflow:hidden;padding:130px 0 118px}
.hero-section::before{content:"";position:absolute;top:-40px;right:-20px;width:440px;height:440px;background:radial-gradient(circle at 50% 50%,rgba(239,199,124,.2),transparent 67%);pointer-events:none}
.hero-section::after{content:"";position:absolute;bottom:-180px;left:-70px;width:440px;height:440px;background:radial-gradient(circle at 50% 50%,rgba(201,138,61,.18),transparent 68%);pointer-events:none}
.hero-inner{display:flex;align-items:center;min-height:480px}
.hero-title{color:#fff;font-weight:600;font-size:46px;letter-spacing:-.4px;line-height:1.38;max-width:780px;margin-bottom:20px}
.hero-title .accent{color:var(--color-accent-2)}
.hero-sub{color:rgba(255,255,255,.8);font-size:17px;line-height:1.9;max-width:650px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.hero-stat-wrap{text-align:center}
.hero-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:28px;padding:24px 22px;max-width:330px;margin-left:auto;backdrop-filter:blur(10px)}
.stat-label{display:inline-block;font-size:12px;background:rgba(239,199,124,.14);color:var(--color-accent-2);padding:3px 12px;border-radius:999px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:16px}
.stat-number{font-family:var(--font-num);font-size:64px;line-height:1;color:#fff;white-space:nowrap}
.stat-suffix{font-size:24px;margin-left:2px;color:var(--color-accent-2)}
.stat-meta{font-size:13px;color:rgba(255,255,255,.58);margin-top:14px;letter-spacing:.02em}
/* section header */
.sec-head{margin-bottom:48px}
.sec-head.pre{display:flex;flex-direction:column;gap:12px}
.sec-title{font-size:32px;font-weight:600;color:var(--color-ink);margin-top:6px}
.sec-title em{font-style:normal;color:var(--color-primary)}
.sec-desc{font-size:16px;color:rgba(22,43,39,.64)}
/* pain */
.pain-area{background:var(--color-bg)}
.pain-card{background:#fff;border:1px solid var(--color-line);border-radius:var(--radius-card);padding:36px 30px;position:relative;transition:box-shadow .24s ease,transform .24s ease;height:100%}
.pain-card:hover{box-shadow:var(--shadow-float);transform:translateY(-5px)}
.pain-num{position:absolute;top:20px;right:24px;font-family:var(--font-num);color:var(--color-line);font-size:36px;line-height:1;font-weight:600}
.pain-icon{display:inline-flex;width:48px;height:48px;align-items:center;justify-content:center;border:1px solid var(--color-primary);border-radius:12px;color:var(--color-primary);margin-bottom:22px;background:rgba(29,74,62,.05)}
.pain-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7}
.pain-card h3{font-size:19px;margin-bottom:12px}
.pain-card p{color:rgba(22,43,39,.68);font-size:15px;margin-bottom:0}
/* solution */
.solution-area{background:linear-gradient(135deg,var(--color-primary-900) 0%,var(--color-primary) 55%,#2A5B4E 100%);color:#fff;position:relative;overflow:hidden}
.solution-area::after{content:"";position:absolute;top:-130px;right:-80px;width:330px;height:330px;border-radius:50%;background:radial-gradient(circle,rgba(239,199,124,.18),rgba(239,199,124,0) 68%)}
.solution-area .sec-title{color:#fff}
.solution-area .sec-title em{font-style:normal;color:var(--color-accent-2)}
.solution-area .sec-desc{color:rgba(255,255,255,.72)}
.solution-top{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;padding-bottom:50px}
.solution-intro{max-width:520px;color:rgba(255,255,255,.78)}
.solution-cards{margin-top:20px}
.solution-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:44px 28px;color:#fff;transition:background .24s ease,transform .24s ease;height:100%;position:relative;overflow:hidden}
.solution-card::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(239,199,124,.16),transparent 70%)}
.solution-card:hover{background:rgba(255,255,255,.1);transform:translateY(-6px)}
.sc-icon{width:54px;height:54px;border-radius:16px;background:rgba(239,199,124,.2);display:flex;align-items:center;justify-content:center;margin-bottom:24px}
.sc-icon svg{width:26px;height:26px;fill:none;stroke:var(--color-accent-2);stroke-width:1.6}
.solution-card h3{color:#fff;font-size:19px;margin-bottom:14px;font-weight:600}
.solution-card p{color:rgba(255,255,255,.68);font-size:15px;margin-bottom:22px}
.sc-lines{display:flex;flex-wrap:wrap;gap:8px}
.sc-lines span{font-size:12px;padding:4px 12px;background:rgba(255,255,255,.1);border-radius:999px;color:rgba(255,255,255,.82)}
/* Result  */
.metrics-area{background:var(--color-surface);border-top:1px solid var(--color-line);border-bottom:1px solid var(--color-line)}
.metric-grid{gap:24px 0}
.metric-item{background:#fff;border:1px solid var(--color-line);border-radius:20px;padding:34px 28px 30px;position:relative;box-shadow:var(--shadow-card)}
.metric-item::before{content:"";position:absolute;top:18px;left:20px;height:18px;background:linear-gradient(90deg,var(--color-accent),var(--color-accent-2));width:34px;border-radius:999px;opacity:.68}
.metric-tag-label{display:block;font-size:12px;color:var(--color-accent);letter-spacing:.1em;margin-bottom:18px;padding-top:4px}
.metric-name{font-size:15px;color:rgba(22,43,39,.6)}
.metric-value{font-family:var(--font-num);font-size:48px;font-weight:700;color:var(--color-primary);line-height:1.1;margin:6px 0 8px}
.metric-value .metric-unit{font-size:22px;font-weight:600;color:var(--color-ink);margin-left:2px}
/* news list */
.news-area{background:var(--color-bg)}
.news-topline{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:42px}
.news-link{color:var(--color-primary);font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:8px}
.news-link i{display:inline-block;font-style:normal;transition:transform .2s ease}
.news-link:hover i{transform:translateX(5px)}
.news-feature-card{position:relative;display:block;border-radius:20px;overflow:hidden;border:1px solid var(--color-line);background:#fff;box-shadow:var(--shadow-card);min-height:300px;color:#fff}
.news-feature-card .news-bg{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,43,37,.78),rgba(15,43,37,.1)),url('/assets/images/coverpic/cover-5.webp') center/cover}
.news-feature-card:hover{box-shadow:var(--shadow-float);transform:translateY(-5px);border-color:transparent;color:#fff}
.news-feature-tag{position:absolute;top:26px;left:26px;background:rgba(255,255,255,.92);color:var(--color-primary);font-size:12px;border-radius:999px;padding:4px 12px;font-weight:600;letter-spacing:.03em}
.news-feature-title{position:absolute;left:26px;right:26px;bottom:58px;color:#fff;font-size:24px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-summary{position:absolute;left:26px;right:26px;bottom:26px;color:rgba(255,255,255,.82);font-size:14px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-panel{padding:0 4px}
.news-list-item{background:#fff;border:1px solid var(--color-line);border-radius:16px;padding:24px;display:block;transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;position:relative;margin-bottom:16px}
.news-list-item:hover{border-color:transparent;box-shadow:var(--shadow-float);transform:translateY(-3px)}
.news-list-cat{font-size:12px;color:var(--color-accent);font-weight:600}
.news-list-title{font-size:17px;color:var(--color-ink);line-height:1.5;font-weight:600;margin:8px 0 10px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-list-summary{font-size:14px;color:rgba(22,43,39,.68);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.news-meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(22,43,39,.55)}
.news-meta .date{font-family:var(--font-num);letter-spacing:.04em}
.news-all-wrap{margin-top:54px;text-align:center}
.empty-box{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:180px;border:1px dashed var(--color-line);border-radius:24px;background:var(--color-surface);color:rgba(22,43,39,.58);gap:12px}
.empty-box i{width:46px;height:46px;border-radius:50%;border:1px solid #d6d0c2;display:flex;align-items:center;justify-content:center;color:var(--color-accent);font-size:24px;font-style:normal}
/* testimonial */
.testimonial-bg{background:linear-gradient(180deg,#E7EEE8 0%,var(--color-bg) 100%);}
.testimonial-card{background:#fff;border:1px solid var(--color-line);border-radius:24px;padding:42px 32px 32px;height:100%;position:relative;margin-bottom:24px;transition:box-shadow .2s ease,background .25s ease}
.testimonial-card:hover{box-shadow:var(--shadow-float)}
.testimonial-quote-bg{position:absolute;top:10px;right:24px;font-family:Georgia,serif;font-size:130px;line-height:1;color:rgba(201,138,61,.15);user-select:none}
.testimonial-p{font-size:16px;color:var(--color-ink);line-height:1.95;position:relative;z-index:1;margin-bottom:26px}
.testimonial-author{display:flex;align-items:center;gap:12px;margin-top:18px}
.testimonial-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--color-accent),var(--color-accent-2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;font-weight:600;overflow:hidden}
.testimonial-avatar img{width:100%;height:100%;object-fit:cover}
.testimonial-name{font-weight:600;display:block;font-size:15px}
.testimonial-pos{font-size:13px;display:block;color:rgba(22,43,39,.56);margin-top:2px}
/* faq */
.faq-area{background:var(--color-surface)}
.faq-left{position:sticky;top:120px}
.faq-left-help{display:flex;align-items:center;gap:10px;margin-top:26px}
.faq-list{margin:0}
.faq-item{background:var(--color-bg);border:1px solid var(--color-line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:transparent;border:none;padding:22px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--color-ink);min-height:56px}
.faq-trigger:hover{color:var(--color-primary)}
.faq-icon{flex:0 0 22px;width:22px;height:22px;display:flex;align-items:center;justify-content:center;position:relative;font-size:20px;font-weight:500;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--color-accent);transition:transform .25s ease,opacity .25s ease;border-radius:2px}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px;transform:rotate(90deg)}
.faq-item.active .faq-icon::after{transform:rotate(0deg);opacity:0}
.faq-content{overflow:hidden;max-height:0;padding:0 24px;transition:max-height .28s ease,padding .3s ease}
.faq-content-inner{padding-bottom:22px;color:rgba(22,43,39,.7);font-size:15px}
.faq-item.active .faq-content{max-height:280px}
/*cta*/
.cta-section{background:var(--color-primary-900);position:relative;overflow:hidden;color:#fff;padding:96px 0}
.cta-section::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.25}
.cta-section::after{content:"";position:absolute;top:0;right:0;width:360px;height:100%;background:linear-gradient(135deg,transparent,rgba(201,138,61,.15));pointer-events:none}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto}
.cta-title{color:#fff;font-size:40px;font-weight:600;line-height:1.4;margin-bottom:20px}
.cta-desc{color:rgba(255,255,255,.7);font-size:17px;margin-bottom:38px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
/* footer */
.footer{background:var(--color-primary-900);color:rgba(255,255,255,.68);padding:80px 0 0;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;left:-10%;bottom:0;width:400px;height:300px;background:radial-gradient(circle,rgba(201,138,61,.2),transparent 68%)}
.footer::after{content:"";position:absolute;right:0;top:0;height:100%;width:120px;background:radial-gradient(circle at 100% 20%,rgba(239,199,124,.2),transparent 70%)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.1fr 1.1fr;gap:48px;padding-bottom:54px;position:relative;z-index:2}
.footer-brand{display:flex;align-items:center;gap:8px;margin-bottom:18px}
.footer-brand .brand-word{color:#fff}
.footer-brand .brand-word .brand-official{color:var(--color-accent)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);max-width:262px;margin-bottom:16px}
.footer-title{font-weight:600;color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-bottom:12px}
.footer-title::after{content:"";position:absolute;bottom:0;left:0;width:28px;height:2px;border-radius:2px;background:var(--color-accent)}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links li a{color:rgba(255,255,255,.6);font-size:15px}
.footer-links li a:hover{color:#fff}
.footer-contact{display:flex;flex-direction:column;gap:16px}
.footer-contact p a{color:rgba(255,255,255,.7);font-size:15px}
.footer-service li{display:flex;align-items:center;gap:8px;padding:8px 0}
.footer-service li i{width:6px;height:6px;border-radius:50%;background:var(--color-accent-2)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;color:rgba(255,255,255,.46);font-size:13px;flex-wrap:wrap}
.footer-bottom .copy span{color:rgba(255,255,255,.62)}
.footer-bottom .icp{letter-spacing:.04em}
/*responsive*/
@media screen and (max-width:1199px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .menu-toggle{display:block}
  .hero-title{font-size:38px}
}
@media screen and (max-width:1023px){
  .hero-section{padding:100px 0 80px}
  .hero-inner{flex-direction:column;align-items:flex-start;gap:34px}
  .hero-stat-wrap{width:100%}
  .hero-stat{margin:0;text-align:left;max-width:330px}
  .pain-grid .cell{margin-bottom:0}
  .stats-row .cell{margin-bottom:22px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:767px){
  .topbar{display:none}
  .site-header{top:0;background:rgba(255,255,255,.9)}
  .site-header.scrolled{top:0}
  body{padding-top:72px}
  body.header-fixed{padding-top:0}
  h1{font-size:30px}
  .section{padding:72px 0}
  h2{font-size:28px}
  .modal-scroll{padding:0 18px}
  .hero-title{font-size:44px} /*?*/
  .hero-sub{font-size:15px}
  .metric-grid .cell{max-width:50%;flex:0 0 50%;padding-left:12px;padding-right:12px}
  .metric-value{font-size:42px}
  .footer-grid{grid-template-columns:1fr}
}
@media screen and (max-width:520px){
  .hero-title{font-size:34px}
  .hero-actions{display:grid;grid-template-columns:1fr;width:calc(100% - 20px)}
  .btn{width:100%}
  .metric-grid .cell{max-width:100%;flex:0 0 100%}
  .cta-title{font-size:30px}
  .cta-actions .btn{width:100%}
}
/* foundation lite cleanup */
.grid-margin-x>.cell{margin-bottom:16px}
.grid-margin-x>.cell:last-child{margin-bottom:0}
.grid-margin-x .cell .cell{margin-bottom:0}
.faq-content{overflow-wrap:break-word}
@media screen and (min-width:767px){
 .grid-x.grid-margin-x>.large-6{float:unset}
}

/* roulang page: article */
:root{
  --color-ink:#162B27;
  --color-primary:#1D4A3E;
  --color-primary-900:#0F2B25;
  --color-accent:#C98A3D;
  --color-accent-2:#EFC77C;
  --color-bg:#F8F6F0;
  --color-surface:#FFFFFF;
  --color-line:#E4DFD4;
  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:10px;
  --shadow-sm:0 6px 18px rgba(20,45,38,.06);
  --shadow-md:0 18px 40px rgba(20,45,38,.14);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-number:"DIN Alternate","Bahnschrift","Roboto Condensed",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--color-bg);
  color:var(--color-ink);
  font-family:var(--font-main);
  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 .2s ease;}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
.container{max-width:1200px;margin-inline:auto;padding-left:24px;padding-right:24px;}
.row-clean{max-width:none;}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(228,223,212,.72);
  box-shadow:0 4px 18px rgba(15,43,37,.035);
}
.topbar{
  background:var(--color-primary-900);
  color:rgba(255,255,255,.72);
  font-size:13px;
  letter-spacing:.02em;
  padding:8px 0;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-inner a{color:rgba(255,255,255,.82);}
.topbar-inner a:hover{color:#fff;}
.header-main{position:relative;z-index:2;}
.nav-row{
  height:74px;
  display:flex;align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:10px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--color-accent),var(--color-accent-2));
  box-shadow:0 4px 10px rgba(201,138,61,.28);
}
.brand-cn{font-size:20px;font-weight:600;letter-spacing:.02em;color:var(--color-ink);line-height:1.2;white-space:nowrap;}
.brand-cn .brand-light{color:var(--color-accent);font-weight:600;}
.site-nav{display:flex;align-items:center;}
.nav-links{list-style:none;padding:0;margin:0;display:flex;align-items:center;gap:calc(20px + .4vw);}
.nav-links li{position:relative;}
.nav-item{
  position:relative;
  display:inline-block;
  padding:10px 2px 12px;
  font-size:15px;
  font-weight:500;
  color:rgba(22,43,39,.78);
  letter-spacing:.01em;
  white-space:nowrap;
  transition:color .2s ease,opacity .2s ease;
}
.nav-item::after{
  content:"";
  position:absolute;left:50%;bottom:4px;
  width:6px;height:6px;border-radius:50%;
  background:var(--color-accent);
  transform:translateX(-50%) scale(0);
  transition:transform .25s ease;
}
.nav-item:hover{color:var(--color-primary);opacity:1;}
.nav-item.active{color:var(--color-primary);opacity:1;}
.nav-item.active::after{transform:translateX(-50%) scale(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--color-primary);
  color:#fff;
  font-size:14px;font-weight:600;
  padding:10px 18px;border-radius:var(--radius-sm);
  box-shadow:0 4px 12px rgba(29,74,62,.22);
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
  white-space:nowrap;
}
.nav-cta:hover{background:#256052;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.hamburger{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--color-line);
  background:var(--color-surface);
  border-radius:12px;
  cursor:pointer;
}
.hamburger span,.hamburger span::before,.hamburger span::after{
  display:block;width:20px;height:2px;
  background:var(--color-ink);border-radius:2px;
  content:"";
  position:relative;
  transition:transform .25s ease,opacity .2s ease;
}
.hamburger span::before{position:absolute;top:-6px;}
.hamburger span::after{position:absolute;top:6px;}
.nav-overlay{
  position:fixed;inset:0;z-index:78;
  background:rgba(15,43,37,.42);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease;
}
body.mobile-open .nav-overlay{opacity:1;visibility:visible;}
body.mobile-open .site-nav{
  transform:translateX(0);
  visibility:visible;
  opacity:1;
}
body.mobile-open .hamburger span{
  background:transparent;
}
body.mobile-open .hamburger span::before{top:0;transform:rotate(45deg);}
body.mobile-open .hamburger span::after{top:0;transform:rotate(-45deg);}

.article-hero{
  position:relative;
  padding:108px 0 58px;
  background:
    linear-gradient(rgba(15,43,37,.72),rgba(22,43,39,.55)),
    url('/assets/images/backpic/back-2.webp') center 25% / cover no-repeat;
  color:#fff;
}
.article-hero .hero-inner{position:relative;z-index:2;max-width:920px;}
.article-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:80px;
  background:linear-gradient(to bottom,rgba(248,246,240,0),var(--color-bg));
  pointer-events:none;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:#F9EBD2;
  font-size:13px;
  font-weight:500;
  letter-spacing:.04em;
  padding:5px 14px;
  border-radius:999px;
  margin-bottom:20px;
}
.article-hero h1{
  margin:0;
  font-size:clamp(28px,4.4vw,44px);
  font-weight:600;
  line-height:1.32;
  letter-spacing:-.01em;
  text-shadow:0 2px 14px rgba(0,0,0,.2);
  max-width:15em;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:6px;
  margin-bottom:18px;
  font-size:13px;
  color:rgba(255,255,255,.64);
}
.breadcrumb a{color:rgba(255,255,255,.8);transition:color .2s;}
.breadcrumb a:hover{color:#F9EBD2;}
.breadcrumb .dot{opacity:.5;}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px 20px;
  margin-top:26px;
  color:rgba(255,255,255,.76);
  font-size:14px;
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}

.article-section{position:relative;z-index:3;padding:38px 0 30px;}
.article-card{
  background:var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  max-width:960px;
  margin:0 auto;
  padding:clamp(28px,5vw,60px);
}
.article-body{font-size:17px;line-height:2;}
.article-body p{margin:0 0 1.6em;}
.article-body h2{margin:2em 0 .8em;font-size:1.55em;font-weight:600;line-height:1.45;color:var(--color-primary);}
.article-body h3{margin:1.6em 0 .7em;font-size:1.25em;font-weight:600;line-height:1.5;color:var(--color-primary-900);}
.article-body h4{font-size:1.05em;font-weight:600;margin:1.4em 0 .6em;}
.article-body img{border-radius:14px;margin:1.6em auto;max-width:880px;box-shadow:var(--shadow-sm);}
.article-body blockquote{
  margin:1.8em 0;
  padding:.7em 0 .7em 1.3em;
  border-left:4px solid var(--color-accent);
  background:linear-gradient(90deg,rgba(201,138,61,.06),rgba(255,255,255,0));
  color:rgba(22,43,39,.82);
  font-style:normal;
}
.article-body ul,.article-body ol{padding-left:1.3em;margin:0 0 1.7em;}
.article-body li{margin-bottom:.55em;}
.article-body a{color:var(--color-primary);border-bottom:1px solid rgba(29,74,62,.25);padding-bottom:1px;}
.article-body a:hover{color:var(--color-accent);border-color:rgba(201,138,61,.5);}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;}
.article-body table th,
.article-body table td{
  border:1px solid var(--color-line);padding:12px 14px;text-align:left;
}
.article-body table th{background:var(--color-bg);font-weight:600;color:var(--color-primary);}
.article-body pre,.article-body code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;}
.article-body pre{background:#f3f0e9;border:1px solid var(--color-line);border-radius:16px;padding:18px 20px;overflow-x:auto;margin:1.6em 0;}

.article-foot{margin-top:36px;padding-top:24px;border-top:1px solid var(--color-line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;}
.foot-note{font-size:14px;color:#8A8378;}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--color-primary);}
.back-link:hover{color:var(--color-accent);}

.not-found{
  max-width:960px;margin:0 auto;
  background:var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:var(--radius-lg);
  text-align:center;
  padding:90px 24px;
  box-shadow:var(--shadow-sm);
}
.not-found .nf-icon{
  width:74px;height:74px;margin:0 auto 20px;
  border-radius:50%;
  background:var(--color-bg);
  display:flex;align-items:center;justify-content:center;
  color:#9A9489;
}
.not-found h2{margin:0 0 8px;font-size:1.35rem;color:var(--color-primary);}
.not-found p{margin:0 0 26px;color:#8A8378;font-size:15px;}
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--color-primary);
  color:#fff;
  min-height:48px;
  padding:10px 22px;
  border-radius:10px;
  font-weight:600;
  transition:.25s ease;
  border:1px solid transparent;
}
.btn-solid:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);}

.related-area{padding:56px 0 14px;}
.related-top{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;
}
.related-top h2{
  margin:0;
  font-size:clamp(22px,3vw,28px);
  font-weight:600;
  color:var(--color-primary-900);
  letter-spacing:-.01em;
}
.related-top h2 small{display:block;font-size:14px;font-weight:400;color:#8A8378;margin-top:4px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;
  color:var(--color-primary);
  white-space:nowrap;
}
.link-arrow:hover{color:var(--color-accent);}
.rc-posts{row-gap:24px;}
.rc-card{
  height:100%;
  background:var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:20px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:0 4px 14px rgba(20,45,38,.04);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.rc-card .rc-media{position:relative;aspect-ratio:16/9;background:#EDEAE2;overflow:hidden;}
.rc-card .rc-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rc-card:hover .rc-media img{transform:scale(1.035);}
.rc-card .rc-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.rc-body .rc-label{
  position:absolute;left:14px;bottom:12px;
  background:rgba(15,43,37,.82);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  color:#F9EBD2;
  font-size:12px;
  padding:4px 12px;
  border-radius:999px;
}
.rc-body h3{font-size:1.08rem;font-weight:600;line-height:1.5;margin:0 0 10px;color:var(--color-ink);}
.rc-body p{font-size:14px;color:#6E6A61;line-height:1.75;margin:0 0 18px;}
.rc-footer{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid #F0ECE4;
  padding-top:14px;font-size:13px;color:#989187;
}
.rc-footer .rc-date{font-family:var(--font-number);letter-spacing:.03em;}
.rc-footer .rc-link{color:var(--color-primary);font-weight:500;}
.rc-footer .rc-link:hover{color:var(--color-accent);}

.cta-zone{
  position:relative;
  margin:50px 0 0;
  padding:84px 0;
  background:
    linear-gradient(135deg,rgba(15,43,37,.9),rgba(22,74,62,.78)),
    url('/assets/images/backpic/back-3.png') center 30% / cover no-repeat;
  color:#fff;
  text-align:center;
  overflow:hidden;
}
.cta-zone::before{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(239,199,124,.28),rgba(239,199,124,0) 70%);
  pointer-events:none;
}
.cta-zone .container{position:relative;z-index:2;}
.cta-zone h2{
  margin:0 auto 14px;
  max-width:760px;
  font-size:clamp(24px,4vw,38px);
  font-weight:600;
  letter-spacing:-.015em;
  line-height:1.35;
}
.cta-zone p{
  margin:0 auto 32px;
  max-width:620px;
  color:rgba(255,255,255,.72);
  font-size:16px;
}
.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--color-accent),var(--color-accent-2));
  color:#162B27;
  width:auto;
  min-height:50px;
  padding:10px 28px;
  border-radius:10px;
  font-weight:600;
  box-shadow:0 12px 30px rgba(201,138,61,.3);
  transition:.25s ease;
}
.btn-gold:hover{background:#d99c4f;color:#0F2B25;transform:translateY(-2px);box-shadow:var(--shadow-md);}

.footer{
  background:var(--color-primary-900);
  color:rgba(255,255,255,.7);
  font-size:14px;
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1.1fr 1.2fr;
  gap:38px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  margin-bottom:14px;
}
.brand-mark-small{
  width:8px;height:30px;
  border-radius:8px;
  background:linear-gradient(135deg,var(--color-accent),var(--color-accent-2));
}
.footer-brand .brand-word{
  font-size:18px;font-weight:600;color:#fff;
  letter-spacing:.02em;
}
.footer-brand .brand-word em{font-style:normal;color:var(--color-accent-2);}
.footer-desc{max-width:330px;margin-bottom:0;color:rgba(255,255,255,.52);line-height:1.8;}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin:6px 0 18px;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.58);transition:color .2s,opacity .2s;}
.footer-links a:hover{color:var(--color-accent-2);opacity:1;}
.footer-contact p{margin:0 0 8px;color:rgba(255,255,255,.55);}
.footer-contact a{color:rgba(255,255,255,.8);}
.footer-contact a:hover{color:var(--color-accent-2);}
.footer-service a{font-size:14px;}
.footer-service a::before{
  content:"→";
  margin-right:8px;
  color:var(--color-accent);
  display:inline-block;
  transition:transform .2s ease;
}
.footer-service a:hover::before{transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0;
}
.footer-bottom p{font-size:13px;margin-bottom:0;}
.footer-bottom a{color:rgba(255,255,255,.55);}
.footer-bottom a:hover{color:var(--color-accent-2);}

@media screen and (max-width:1199px){
  .nav-links{gap:18px;}
  .nav-item{font-size:14px;}
}
@media screen and (max-width:1023px){
  .header-main{padding:0;}
  .site-header .site-nav{
    position:fixed;top:0;right:0;bottom:0;z-index:79;
    width:min(88vw,380px);
    min-height:100vh;
    background:var(--color-primary-900);
    padding:86px 28px 30px;
    transform:translateX(100%);
    display:block;
    visibility:hidden;
    opacity:0;
    transition:transform .3s ease,opacity .25s ease;
    border-left:1px solid rgba(255,255,255,.08);
  }
  .site-nav .nav-links{flex-direction:column;align-items:stretch;gap:6px;margin-top:18px;}
  .site-nav .nav-links li{border-bottom:1px solid rgba(255,255,255,.06);padding-bottom:2px;}
  .nav-links .nav-item{display:block;color:rgba(255,255,255,.78);padding:13px 2px;font-size:16px;}
  .nav-links .nav-item:hover,
  .nav-links .nav-item.active{color:#fff;}
  .nav-links .nav-item.active::after{display:none;}
  .nav-cta-mobile{margin-top:14px;}
  .nav-cta-mobile a{
    display:block;text-align:center;
    margin-top:16px;
    background:var(--color-accent);
    color:#162B27;
    font-weight:600;
    padding:12px 20px;
    border-radius:10px;
  }
  .nav-actions{display:flex;align-items:center;gap:10px;}
  .desktop-cta{display:none;}
  .hamburger{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px 24px;}
}
@media screen and (max-width:767px){
  .topbar{font-size:12px;}
  .topbar-inner .topbar-split span{display:none;}
  .topbar-inner .topbar-split a,.topbar-inner .topbar-split{font-weight:400;color:rgba(255,255,255,.62);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .article-card{padding:24px 18px;border-radius:20px;}
  .article-section{padding:26px 0 44px;}
  .related-area{padding:40px 0 8px;}
  .rc-posts .cell+.cell{margin-top:0;}
  .cta-zone{padding:68px 0;}
  .btn-solid,.btn-gold,.nav-cta{min-height:50px;}
}

/* roulang page: category1 */
:root{
  --color-ink:#162B27;
  --color-primary:#1D4A3E;
  --color-primary-900:#0F2B25;
  --color-accent:#C98A3D;
  --color-accent-2:#EFC77C;
  --color-bg:#F8F6F0;
  --color-surface:#FFFFFF;
  --color-line:#E4DFD4;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Roboto Condensed",sans-serif;
  --shadow-card:0 6px 18px rgba(20,45,38,.06);
  --shadow-float:0 18px 40px rgba(20,45,38,.14);
  --radius-card:16px;
  --radius-card-lg:24px;
  --radius-hero:32px;
  --radius-cta:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  background:var(--color-bg);
  color:var(--color-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;cursor:pointer}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.site-header{background:var(--color-surface)}
.topbar{
  background:var(--color-primary-900);
  color:var(--color-line);
  font-size:12px;
  letter-spacing:.02em;
}
.topbar-inner{
  max-width:1200px;margin:0 auto;padding:4px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar a{color:rgba(255,255,255,.84)}
.topbar i{margin-right:6px;color:var(--color-accent-2)}
.site-nav{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:border-color .25s, box-shadow .25s;
}
.site-nav.scrolled{border-bottom-color:var(--color-line);box-shadow:0 8px 24px rgba(22,43,39,.05)}
.nav-row{max-width:1200px;margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;gap:28px;position:relative}
.logo-block{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}
.logo-block .logo-icon{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--color-accent-2),var(--color-accent));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;color:var(--color-primary-900);
}
.logo-word{display:inline-flex;align-items:baseline;font-size:22px;font-weight:600;color:var(--color-ink);font-family:var(--font-cn);letter-spacing:-.01em}
.logo-word .brand-official{color:var(--color-accent);font-weight:600}
.nav-links{display:flex;align-items:center;gap:8px;margin:0;list-style:none}
.nav-item{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 10px;position:relative;
  color:var(--color-ink);font-size:15px;font-weight:500;
  transition:color .2s,opacity .2s;line-height:1.2;
}
.nav-item::after{
  content:"";display:block;width:6px;height:6px;
  border-radius:50%;background:var(--color-accent);
  position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scale(0);
  transition:transform .25s;
}
.nav-item:hover{color:var(--color-primary)}
.nav-item.active{color:var(--color-primary);font-weight:600}
.nav-item.active::after{transform:translateX(-50%) scale(1)}
.nav-cta{margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;border-radius:var(--radius-cta);
  background:var(--color-primary);color:#fff;padding:11px 18px;
  min-height:44px;border:1px solid transparent;
  transition:transform .2s,box-shadow .2s,background-color .2s,color .2s;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-float);background:var(--color-primary-900)}
.btn-gold{background:var(--color-accent);color:#fff}
.btn-gold:hover{background:#B4782E;color:#fff}
.btn-light-outline{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.8);color:#fff}
.btn-light-outline:hover{background:rgba(255,255,255,.14);border-color:#fff}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:10px;
  background:transparent;border:1px solid var(--color-line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--color-ink)}
.nav-close{display:none}
.nav-backdrop{display:none}

.page-hero{
  position:relative;
  padding:96px 0 88px;
  overflow:hidden;
  color:#fff;
  background:linear-gradient(135deg, rgba(15,43,37,.94) 0%, rgba(29,74,62,.82) 44%, rgba(23,53,45,.66) 100%), url("/assets/images/backpic/back-2.webp) center/cover;
  background-position:center;
  background-size:cover;
}
.page-hero::after{
  content:"";position:absolute;right:-260px;bottom:-260px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle, rgba(239,199,124,.16), transparent 66%);
}
.hero-inner{position:relative;z-index:2}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;color:rgba(255,255,255,.66);margin-bottom:20px;letter-spacing:.02em;
}
.breadcrumb-line a{color:rgba(255,255,255,.82)}
.breadcrumb-line a:hover{color:var(--color-accent-2)}
.breadcrumb-line i{margin-right:6px}
.page-hero h1{
  font-size:46px;line-height:1.3;font-weight:600;max-width:900px;letter-spacing:-.02em;
  margin-bottom:16px;
}
.page-hero .hero-lead{
  max-width:560px;color:rgba(255,255,255,.76);font-size:17px;line-height:1.9;margin-bottom:28px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px}
.hero-chip{
  margin-top:44px;display:flex;flex-wrap:wrap;gap:12px;
}
.hero-chip span{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:100px;padding:7px 14px;font-size:13px;color:rgba(255,255,255,.88);
}
.hero-chip i{color:var(--color-accent-2)}

.about-section{padding:88px 0}
.section-mark{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--color-accent);letter-spacing:.12em;margin-bottom:14px;
}
.section-mark::before{content:"";width:26px;height:1px;background:var(--color-accent)}
.section-title{font-size:32px;line-height:1.45;color:var(--color-primary);font-weight:600;margin-bottom:18px;letter-spacing:-.02em}
.section-lead{font-size:16px;color:var(--color-ink);line-height:2;max-width:640px;margin-bottom:24px}
.text-block p{color:#243B36;margin-bottom:18px;line-height:2}

.about-brief{background:var(--color-surface)}
.split-cell .caption{
  border-left:3px solid var(--color-accent);
  padding:8px 0 8px 18px;
  color:var(--color-accent);
  font-size:13px;
  font-weight:600;
  margin-top:24px;
  letter-spacing:.06em;
}
.feature-muto-list{margin-top:26px}
.feature-muto-list li{display:flex;gap:14px;align-items:flex-start;margin-bottom:16px}
.feature-muto-list .icon-block{
  width:36px;height:36px;flex:0 0 auto;border-radius:11px;
  background:linear-gradient(135deg, rgba(201,138,61,.12), rgba(239,199,124,.2));
  color:var(--color-primary);
  display:flex;align-items:center;justify-content:center;
}
.feature-muto-list h4{font-size:16px;color:var(--color-ink);font-weight:600;margin-bottom:4px;line-height:1.5}
.feature-muto-list p{font-size:14px;color:#52645E;margin-bottom:0;line-height:1.8}
.image-frame{
  border-radius:var(--radius-card-lg);
  overflow:hidden;box-shadow:var(--shadow-card);
  position:relative;
}
.image-frame img{width:100%;height:100%;object-fit:cover}
.image-frame figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(15,43,37,.74);
  backdrop-filter:blur(8px);
  padding:12px 16px;border-radius:14px;
  color:#fff;font-size:13px;
}
.square-pic{aspect-ratio:4/5;object-fit:cover;width:100%}

.about-values{padding:84px 0}
.about-values .section-title{margin-bottom:6px}
.principle-list{margin-top:16px}
.principle-item{
  display:grid;grid-template-columns:54px 1fr;gap:22px;
  padding:26px 4px;border-bottom:1px solid var(--color-line);
}
.principle-item:first-child{border-top:1px solid var(--color-line)}
.principle-num{
  font-family:var(--font-num);font-size:26px;color:var(--color-accent);line-height:1;
  padding-top:8px;letter-spacing:.04em;
}
.principle-item h4{font-size:18px;font-weight:600;margin-bottom:7px;color:var(--color-primary)}
.principle-item p{font-size:15px;line-height:1.9;color:#415650;margin-bottom:8px}

.timeline-block{background:var(--color-surface)}
.timeline-head{max-width:680px;margin-bottom:54px}
.timelines{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  position:relative;
}
.timeline-grid{
  background:var(--color-bg);
  border:1px solid var(--color-line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  position:relative;
  overflow:hidden;
  transition:transform .2s,box-shadow .2s;
}
.timeline-grid::before{
  content:"";position:absolute;top:0;left:0;height:4px;width:62px;
  border-radius:0 0 6px 0;background:linear-gradient(90deg,var(--color-accent),var(--color-accent-2));
}
.timeline-grid:hover{transform:translateY(-4px);box-shadow:var(--shadow-card)}
.time-step{display:block;font-family:var(--font-num);font-size:14px;color:var(--color-accent);font-weight:600;letter-spacing:.1em;margin-bottom:12px}
.timeline-grid h4{font-size:18px;color:var(--color-primary);margin-bottom:12px;font-weight:600}
.timeline-grid p{font-size:14px;color:#50615C;line-height:1.9;margin-bottom:0}

.run-section{background:var(--color-bg)}
.run-section .split-img{position:relative}
.run-section .split-img-img{border-radius:var(--radius-card-lg);overflow:hidden;box-shadow:var(--shadow-card)}
.run-note{
  margin-top:28px;border-radius:var(--radius-card);
  border:1px solid var(--color-line);background:rgba(232,225,212,.5);
  padding:22px 26px;display:flex;gap:16px;
}
.run-note i{color:var(--color-accent);font-size:26px;padding-top:2px}
.run-note p{margin-bottom:0;font-size:15px;color:#40534E;line-height:2}
.run-note strong{color:var(--color-primary)}

.support-badge-strip{background:#fff;border-top:1px solid var(--color-line);padding:70px 0}
.badge-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.badge-unit{
  background:#FCFBF8;border:1px solid var(--color-line);border-radius:var(--radius-card);
  padding:26px 20px;text-align:center;transition:transform .2s,box-shadow .2s;
  position:relative;
}
.badge-unit:hover{transform:translateY(-5px);box-shadow:var(--shadow-card)}
.badge-unit .topdot{
  width:8px;height:8px;border-radius:50%;background:var(--color-accent);
  display:block;margin:0 auto 12px;
}
.badge-unit .icon{width:48px;height:48px;margin:0 auto 10px;border-radius:14px;background:linear-gradient(135deg,rgba(201,138,61,.16),rgba(239,199,124,.24));color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:20px}
.badge-unit h4{font-size:17px;color:var(--color-primary);margin-bottom:8px;font-weight:600}
.badge-unit p{font-size:13px;color:#576661;line-height:1.8;margin-bottom:0;font-family:var(--font-cn)}

.dropquote{
  border:0;margin:0;padding:0;position:relative;
}
.dropquote .quote-decor{
  position:absolute;top:-18px;left:-10px;font-size:120px;line-height:1;
  color:rgba(15,43,37,.06);font-family:var(--font-num);
}
.quote-card{
  background:var(--color-primary-900);
  color:#fff;
  border-radius:var(--radius-hero);
  padding:64px 56px;
  position:relative;
  overflow:hidden;
  background-image:linear-gradient(135deg,rgba(201,138,61,.08),transparent 55%),url("/assets/images/backpic/back-2.webp) center/cover;
  background-size:cover;
}
.quote-card::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,43,37,.92),rgba(15,43,37,.78));z-index:0}
.quote-card-inner{position:relative;z-index:1}
.quote-card .q-mark{font-family:var(--font-num);font-size:100px;color:var(--color-accent);line-height:1;height:60px}
.quote-card p{font-size:28px;line-height:1.8;font-weight:500;color:#fff;margin:10px 0 28px}
.quote-card footer{color:rgba(255,255,255,.62);font-size:14px}

.final-cta{
  background:linear-gradient(135deg, rgba(15,43,37,.98) 0%, rgba(29,74,62,.95) 100%), url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  background-size:cover;
  color:#fff;padding:128px 0;
  text-align:center;position:relative;overflow:hidden;
}
.final-cta::before{
  content:"";position:absolute;top:-30%;right:-10%;width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(239,199,124,.2),transparent 64%);
}
.final-cta .gc{max-width:620px;margin:0 auto;position:relative;z-index:1}
.final-cta .gc h2{font-size:38px;line-height:1.5;margin-bottom:18px;font-weight:600}
.final-cta .gc p{color:rgba(255,255,255,.7);font-size:17px;margin-bottom:34px;line-height:1.9}
.final-cta .btn-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

.footer{background:var(--color-primary-900);color:#e5e2dc;padding:76px 0 0}
.footer a{color:rgba(255,255,255,.72);transition:color .2s}
.footer a:hover{color:var(--color-accent-2)}
.footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--color-accent-2),var(--color-accent));display:inline-block}
.brand-word{display:flex;align-items:center;font-size:21px;color:#fff;font-weight:600}
.brand-word .brand-official{color:var(--color-accent-2);margin-right:0}
.footer-title{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;letter-spacing:.03em}
.footer-links{margin:0}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;padding:4px 0;display:inline-block}
.footer-contact p{margin-bottom:14px;font-size:14px;display:flex;justify-content:flex-start;gap:10px}
.footer-contact a{color:inherit}
.footer-contact i{color:var(--color-accent)}
.footer-service i{margin-right:8px;color:var(--color-accent-2)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding:18px 0}
.footer-bottom p{color:rgba(255,255,255,.45);font-size:13px}

@media screen and (max-width: 1199.98px){
  .container{max-width:100%}
  .page-hero h1{font-size:38px}
  .timelines{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .badge-row{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width: 1023.98px){
  .topbar-inner .right-text{display:none}
  .nav-cta{display:none}
  .nav-toggle{
    display:flex;margin-left:auto;
  }
  .nav-links{
    position:fixed;top:0;right:0;width:min(420px,88vw);height:100vh;
    background:var(--color-primary-900);
    flex-direction:column;justify-content:flex-start;align-items:stretch;
    padding:78px 32px 32px;margin:0;
    transform:translateX(110%);
    transition:transform .28s ease;
    z-index:120;
    box-shadow:-20px 0 50px rgba(0,0,0,.16);
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{
    color:rgba(255,255,255,.92);
    font-size:18px;padding:16px 8px;border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav-links a:hover{color:var(--color-accent-2)}
  .nav-links .nav-item.active{color:var(--color-accent-2);font-weight:600}
  .nav-links .nav-item.active::after{background:var(--color-accent-2)}
  .nav-close{
    display:flex;position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:50%;
    background:rgba(255,255,255,.08);color:#fff;align-items:center;justify-content:center;
    font-size:28px;line-height:1;
  }
  .nav-backdrop.show{display:block;position:fixed;inset:0;background:rgba(8,18,15,.56);z-index:110;backdrop-filter:blur(2px)}
  .page-hero{padding:70px 0 64px}
  .page-hero h1{font-size:36px}
  .square-pic{aspect-ratio:16/10;margin-top:26px}
  .quote-card{padding:42px 30px}
  .quote-card p{font-size:22px}
  .principle-item{grid-template-columns:44px 1fr}
}
@media screen and (max-width: 767.98px){
  body{font-size:15px}
  .container{padding-left:20px;padding-right:20px}
  .topbar-inner{padding-left:20px;padding-right:20px}
  .about-section{padding:58px 0}
  .page-hero{padding:52px 0}
  .page-hero h1{font-size:30px}
  .page-hero .hero-lead{font-size:15px}
  .section-title{font-size:26px}
  .timelines{grid-template-columns:1fr 1fr;gap:14px}
  .timeline-grid{padding:22px 16px}
  .badge-row{grid-template-columns:1fr 1fr;gap:14px}
  .badge-unit{padding:22px 16px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;padding-left:20px;padding-right:20px}
  .quote-card p{font-size:18px}
  .final-cta{padding:88px 0}
  .final-cta .gc h2{font-size:30px}
  .split-image .image-frame{margin-bottom:20px}
}
@media screen and (max-width: 479.98px){
  .nav-links{width:100%;height:100vh;padding:84px 24px 24px}
  .topbar-inner{font-size:11px}
  .logo-word{font-size:18px}
  .logo-block .logo-icon{width:30px;height:30px}
  .timelines{grid-template-columns:1fr}
  .badge-row{grid-template-columns:1fr 1fr}
  .badge-unit .icon{width:42px;height:42px}
  .page-hero h1{font-size:27px}
  .hero-btns .btn{width:100%}
  .btn{min-height:48px}
  .split-cell:first-child,.split-cell:last-child{padding-left:0;padding-right:0}
  .quote-card{border-radius:20px;padding:34px 20px}
}

/* roulang page: category2 */
:root{
  --color-ink:#162B27;
  --color-primary:#1D4A3E;
  --color-primary-900:#0F2B25;
  --color-accent:#C98A3D;
  --color-accent-2:#EFC77C;
  --color-bg:#F8F6F0;
  --color-surface:#FFFFFF;
  --color-line:#E4DFD4;
  --color-muted:rgba(22,43,39,.72);
  --shadow-sm:0 6px 18px rgba(20,45,38,.06);
  --shadow-lg:0 18px 40px rgba(20,45,38,.14);
  --radius-sm:10px;
  --radius-card:20px;
  --radius-hero:32px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Roboto Condensed",sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--color-bg);
  color:var(--color-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:var(--color-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease,box-shadow .2s ease,transform .2s ease}
a:hover,a:focus{outline:none;color:var(--color-accent);opacity:.92}
button{font-family:var(--font-cn);border:none;background:none;cursor:pointer}
.container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
h1,h2,h3,h4{font-family:var(--font-cn);font-weight:600;line-height:1.35;margin:0;color:var(--color-ink)}
h1{font-size:44px}
h2{font-size:32px}
h3{font-size:22px}
p{margin:0 0 28px}
ul,ol{margin:0;padding:0;list-style:none}
.section{padding:96px 0}
.section-top{padding-top:72px}
.section-alt{background:var(--color-bg)}
.section-line{border-bottom:1px solid var(--color-line)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  color:inherit;text-decoration:none;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:hover{opacity:1;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary{background:linear-gradient(135deg,var(--color-accent-2),var(--color-accent));color:#0F2B25;border-color:transparent}
.btn-primary:hover{color:#0F2B25;box-shadow:0 14px 28px rgba(201,138,61,.26)}
.btn-dark{background:var(--color-primary);color:#fff}
.btn-dark:hover{background:var(--color-primary-900);color:#fff}
.btn-light-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-light-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}
.btn-outline:hover{background:var(--color-primary);color:#fff}
.btn-accent{background:var(--color-primary);color:#fff}
.btn-accent:hover{background:var(--color-primary-900);color:#fff}
.btn.is-static:hover{transform:none;box-shadow:none;opacity:.85}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  letter-spacing:.04em;color:var(--color-accent);margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--color-accent);display:inline-block}
.eyebrow-center::after{content:"";width:26px;height:2px;background:var(--color-accent);display:inline-block}
.section-head{max-width:840px;margin:0 auto 56px;text-align:center}
.section-head .lead{font-size:18px;color:var(--color-muted);margin-top:16px}
.lead{color:var(--color-muted);font-size:17px}
.light .lead,.light h1,.light h2,.light h3{color:#fff}
.light .lead{color:rgba(255,255,255,.78)}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transition:box-shadow .25s ease,background .25s ease;border-bottom:1px solid transparent}
.site-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:0 8px 24px rgba(20,45,38,.05);border-bottom-color:var(--color-line)}
.utility-top{background:var(--color-primary-900);color:rgba(255,255,255,.78);font-size:13px;line-height:1;transition:max-height .25s ease}
.utility-top .container{display:flex;justify-content:space-between;gap:14px;padding-top:9px;padding-bottom:9px}
.utility-top a{color:rgba(255,255,255,.78);display:inline-flex;align-items:center;gap:4px}
.utility-top a:hover{color:#fff}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand-link{display:inline-flex;align-items:center;gap:10px;color:var(--color-ink)}
.brand-link:hover{color:var(--color-ink);opacity:1}
.brand-mark{width:10px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--color-accent-2),var(--color-accent));display:inline-block;transform:skew(-4deg)}
.brand-word{font-size:22px;font-weight:700;letter-spacing:.02em;line-height:1.2}
.brand-official{color:var(--color-accent)}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-item{position:relative;color:var(--color-ink);font-size:15px;font-weight:500;padding:6px 2px;opacity:.78}
.nav-item::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--color-accent);position:absolute;left:50%;bottom:-8px;transform:translateX(-50%) scale(0);transition:transform .2s var(--ease)}
.nav-item:hover,.nav-item:focus{opacity:1;color:var(--color-primary)}
.nav-item.active{opacity:1;color:var(--color-primary)}
.nav-item.active::after{transform:translateX(-50%) scale(1)}
.nav-cta{background:var(--color-primary);color:#fff;font-size:15px;font-weight:600;min-height:40px;padding:0 18px;border-radius:10px;color:#fff!important;display:inline-flex;align-items:center;gap:6px;box-shadow:none}
.nav-cta:hover{background:var(--color-primary-900);transform:translateY(-2px);box-shadow:var(--shadow-sm);color:#fff!important}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--color-line);align-items:center;justify-content:center;flex-direction:column;gap:5px;transition:border-color .2s}
.nav-toggle:hover{border-color:var(--color-accent)}
.nav-toggle span{width:18px;height:2px;background:var(--color-ink);display:block;border-radius:2px;transition:transform .3s var(--ease),opacity .3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* mobile drawer */
.mobile-menu{position:fixed;inset:0;z-index:1100;background:linear-gradient(135deg,var(--color-primary-900),var(--color-primary));padding:28px 28px 48px;overflow-y:auto;display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.mobile-menu .brand-link{color:#fff}
.mobile-close{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.35);color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center;line-height:1}
.mobile-menu-links{display:flex;flex-direction:column;gap:4px;flex:1}
.mobile-menu-links a{color:rgba(255,255,255,.88);font-size:24px;font-weight:600;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.mobile-menu-links a.active{color:var(--color-accent-2)}
.mobile-menu-foot{margin-top:32px}
.mobile-menu-foot .btn{width:100%;background:var(--color-accent);color:#0F2B25}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;padding:190px 0 82px;overflow:hidden;
  background:linear-gradient(135deg,rgba(15,43,37,.9) 0%,rgba(29,74,62,.7) 100%),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  margin-top:33px;
}
.page-hero::after{content:"";position:absolute;right:-10%;top:-22%;width:70%;height:70%;background:radial-gradient(circle at 70% 30%,rgba(239,199,124,.2),transparent 65%);pointer-events:none}
.page-hero .container{position:relative;z-index:2;max-width:1200px;text-align:center}
.page-hero .eyebrow{color:var(--color-accent-2);justify-content:center}
.page-hero h1{color:#fff;font-size:48px;margin:12px 0 20px}
.page-hero .lead{color:rgba(255,255,255,.8);max-width:700px;margin:0 auto 36px;font-size:18px}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* overview module */
.overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;max-width:1080px;margin:0 auto}
.overview-card{
  position:relative;background:var(--color-surface);border:1px solid var(--color-line);
  border-radius:var(--radius-card);padding:32px 28px;box-shadow:var(--shadow-sm);
}
.overview-card::before{content:"";position:absolute;left:0;top:30px;bottom:30px;width:3px;border-radius:4px;background:linear-gradient(180deg,var(--color-accent-2),var(--color-accent))}
.overview-card h3{font-size:20px;margin-bottom:10px}
.overview-card p{color:var(--color-muted);font-size:15px;margin-bottom:0}

/* ----------------- catalog section ----------------- */
.catalog-section{background:var(--color-bg);padding-top:80px;padding-bottom:60px;border-bottom:1px solid var(--color-line)}
.catalog-layout{margin-top:24px}
.catalog-intro{max-width:960px}
.catalog-intro h2{font-size:34px;line-height:1.4}
.catalog-intro p{color:var(--color-muted);font-size:17px;margin:0}
.catalog-module-nav .module-note{color:var(--color-muted);font-size:14px;margin:18px 0 0;display:block;text-align:center}
.anchor-nav{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:10px;position:sticky;top:140px;display:flex;flex-direction:column;gap:2px}
.anchor-nav .eyebrow{margin:12px 14px 8px;font-size:13px;justify-content:flex-start}
.anchor-nav .eyebrow::before{display:none}
.anchor-link{display:flex;align-items:center;gap:10px;border-radius:12px;padding:10px 14px;font-size:15px;font-weight:500;color:var(--color-ink);border-left:2px solid transparent}
.anchor-link:hover,.anchor-link:focus{background:var(--color-bg);color:var(--color-primary)}
.anchor-link.active{border-left-color:var(--color-accent);background:var(--color-bg);color:var(--color-primary)}
.anchor-no{font-family:var(--font-num);font-weight:700;font-size:16px;color:var(--color-accent);width:26px;height:26px;border-radius:50%;background:var(--color-bg);display:inline-flex;align-items:center;justify-content:center;flex:none}
.module-tip{background:var(--color-bg);border-radius:12px;padding:18px 16px;margin-top:16px;font-size:14px;color:var(--color-muted);line-height:1.75}
.module-tip strong{color:var(--color-primary);display:block;margin-bottom:6px}

.product-stack{display:flex;flex-direction:column;gap:42px}
.product-card{width:100%;background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius-hero);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow .3s ease,transform .3s ease}
.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.product-card-inner{display:grid;grid-template-columns:44% 1fr;min-height:340px}
.product-card.alt .product-card-inner .product-media{order:2}
.product-media{min-height:280px;overflow:hidden;background:#d7dfd8;position:relative}
.product-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.product-media .media-tag{position:absolute;left:20px;top:20px;background:rgba(15,43,37,.66);backdrop-filter:blur(6px);color:#fff;font-size:13px;padding:5px 12px;border-radius:999px;letter-spacing:.04em}
.product-body{padding:46px 46px 42px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}
.product-index{font-family:var(--font-num);font-weight:700;font-size:18px;color:var(--color-accent);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.product-index span{width:34px;height:2px;background:var(--color-accent);display:inline-block}
.product-body h2{font-size:28px;color:var(--color-ink);margin-bottom:14px}
.product-body p{margin-bottom:20px;color:var(--color-muted)}
.product-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.product-tags li{background:var(--color-bg);border:1px solid var(--color-line);border-radius:999px;color:var(--color-primary);font-size:14px;padding:6px 14px;font-weight:500}
.product-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--color-primary);font-size:15px}
.product-more::after{content:"→";transition:transform .2s ease}
.product-more:hover::after{transform:translateX(4px)}

/* ---------- delivery timeline ---------- */
.delivery-section{padding:96px 0;background:var(--color-bg)}
.timeline{max-width:1120px;margin:0 auto;padding:46px 0 0;position:relative}
.timeline-line{position:absolute;left:0;right:0;top:88px;height:2px;background:var(--color-line)}
.timeline-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.timeline-node{position:relative;text-align:center;padding-top:40px}
.timeline-number{width:74px;height:74px;border-radius:26px;background:var(--color-surface);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-weight:700;font-size:25px;color:var(--color-primary);margin:0 auto 20px;border:1px solid var(--color-line);position:relative}
.timeline-step{margin-top:20px}
.timeline-step h3{font-size:19px;margin-bottom:10px}
.timeline-step p{color:var(--color-muted);line-height:1.7;font-size:15px;margin-bottom:0}
.delivery-limit{max-width:900px;margin:54px auto 0;text-align:center}
.delivery-limit .delivery-tag{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.delivery-tag span{background:var(--color-surface);border:1px solid var(--color-line);border-radius:999px;padding:7px 18px;font-size:14px;color:var(--color-primary)}

/* ---------- faq ---------- */
.faq-wrap{padding:56px 0 96px}
.faq-grid{display:grid;grid-template-columns:340px 1fr;gap:70px}
.faq-side .section-meta{font-weight:600;font-size:30px;line-height:1.4;color:var(--color-ink);margin-bottom:18px}
.faq-side p{color:var(--color-muted);margin-bottom:28px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--color-line);border-radius:18px;box-shadow:var(--shadow-sm);overflow:hidden}
.faq-item summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 26px;cursor:pointer;font-weight:600;font-size:17px;color:var(--color-ink);transition:color .2s;user-select:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--color-primary)}
.faq-toggle{width:25px;height:25px;border-radius:50%;background:var(--color-bg);position:relative;flex:none;transition:transform .25s var(--ease),background .25s}
.faq-toggle::before{content:"";position:absolute;left:50%;top:50%;width:11px;height:1.6px;background:var(--color-primary);transform:translate(-50%,-50%)}
.faq-toggle::after{content:"";position:absolute;left:50%;top:50%;width:1.6px;height:11px;background:var(--color-primary);transform:translate(-50%,-50%);transition:transform .25s var(--ease)}
.faq-item[open] .faq-toggle{transform:rotate(45deg);background:var(--color-bg)}
.faq-answer{padding:0 26px 24px;color:var(--color-muted);max-width:880px}
.faq-answer p{margin:0}

/* ---------- cta ---------- */
.cta-band{position:relative;padding:112px 0;background:linear-gradient(135deg,var(--color-primary-900),var(--color-primary)),url("/assets/images/backpic/back-3.png") center/cover no-repeat;text-align:center;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background:linear-gradient(135deg,rgba(239,199,124,.08),transparent 44%)}
.cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto}
.cta-inner .eyebrow{color:var(--color-accent-2);justify-content:center}
.cta-inner h2{color:#fff;font-size:42px;margin:10px 0 24px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:18px;margin-bottom:36px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.footer{background:var(--color-primary-900);color:rgba(255,255,255,.78);padding-top:80px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2.1fr 1fr 1.2fr 1fr;gap:52px;padding-bottom:60px}
.footer-brand{display:flex;align-items:center;gap:8px;color:#fff;margin-bottom:16px;font-size:22px;font-weight:700}
.brand-mark{width:10px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--color-accent-2),var(--color-accent));transform:skew(-4deg);display:inline-block}
.brand-word{font-weight:700}
.footer-desc{font-size:15px;line-height:1.8;color:rgba(255,255,255,.58);max-width:320px;margin:0}
.footer-title{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,.72);font-size:15px;display:inline-flex}
.footer-links a:hover,.footer-contact a:hover{color:var(--color-accent-2);opacity:1}
.footer-contact p{color:rgba(255,255,255,.72);font-size:15px;margin-bottom:10px;line-height:1.7}
.footer-contact a{color:rgba(255,255,255,.72)}
.footer-service a i{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--color-accent);margin-right:8px;vertical-align:middle}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:24px 0;background:rgba(0,0,0,.15)}
.footer-bottom p{font-size:14px;color:rgba(255,255,255,.6);margin:0}

/* animations & decorations */
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
.fade-up{animation:fadeUp .7s var(--ease) both}
.d1{animation-delay:.08s}.d2{animation-delay:.16s}.d3{animation-delay:.24s}

/* max-width 1199 */
@media(max-width:1199px){
  .product-card-inner{grid-template-columns:1fr 1.15fr}
  .overview-grid{gap:22px}
}
/* max-width 1024 */
@media(max-width:1024px){
  h1{font-size:36px}
  h2{font-size:28px}
  .section{padding:76px 0}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .page-hero{padding-top:170px;margin-top:33px}
  .catalog-module-nav .anchor-nav{position:relative;top:auto;flex-direction:row;flex-wrap:wrap;justify-content:center;padding:12px}
  .anchor-link{padding:8px 10px;border-left:none;border-bottom:2px solid transparent}
  .anchor-link.active{border-bottom-color:var(--color-accent);border-left-color:transparent}
  .faq-grid{grid-template-columns:1fr;gap:50px}
  .timeline-grid{grid-template-columns:repeat(2,1fr)}
  .timeline-line{display:none}
  .timeline-node{padding-top:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
/* 767 */
@media(max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  .utility-top .container{padding-top:8px;padding-bottom:8px}
  .utility-top .right-hide{display:none}
  .page-hero{padding:150px 0 60px;margin-top:33px}
  .page-hero h1{font-size:36px;line-height:1.35}
  .page-hero .lead{font-size:16px}
  .overview-grid{grid-template-columns:1fr}
  .catalog-intro h2{font-size:28px}
  .product-card-inner{grid-template-columns:1fr}
  .product-media{min-height:220px;order:2!important}
  .product-media img{position:static;height:100%}
  .product-card.alt .product-card-inner .product-media{order:0!important}
  .product-body{padding:28px 26px 30px}
  .product-body h2{font-size:23px}
  .product-card.alt .product-card-inner .product-media{order:0}
  .product-card-inner .product-media{order:0}
  .delivery-section{padding:70px 0}
  .timeline-grid{grid-template-columns:1fr}
  .timeline-node{padding-top:20px}
  .timeline-number{width:58px;height:58px;font-size:20px}
  .timeline-grid{gap:36px}
  .section{padding:64px 0}
  .cta-band{padding:80px 0}
  .cta-inner h2{font-size:32px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer{padding-top:60px}
  .faq-side .section-meta{font-size:26px}
}
/* 479 */
@media(max-width:479px){
  h1{font-size:32px} 
  .page-hero h1{font-size:31px;line-height:1.35}
  .hero-btns .btn,.cta-btns .btn{width:100%}
  .product-tags{flex-direction:column;align-items:flex-start}
  .product-tags li{width:auto}
  .anchor-nav{flex-direction:column;align-items:stretch}
  .anchor-link{border-left:2px solid transparent!important;border-bottom:none!important;padding:12px 16px}
  .anchor-link.active{border-left-color:var(--color-accent)!important;background:var(--color-bg);border-bottom:none!important}
}

/* roulang page: category3 */
:root {
      --color-ink: #162B27;
      --color-primary: #1D4A3E;
      --color-primary-900: #0F2B25;
      --color-accent: #C98A3D;
      --color-accent-deep: #A55F1F;
      --color-accent-2: #EFC77C;
      --color-bg: #F8F6F0;
      --color-surface: #FFFFFF;
      --color-line: #E4DFD4;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "DIN Alternate", "Bahnschrift", "Roboto Condensed", sans-serif;
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 10px;
      --shadow-sm: 0 6px 18px rgba(20,45,38,.06);
      --shadow-md: 0 18px 40px rgba(20,45,38,.14);
      --ease: cubic-bezier(.25,.46,.45,.94);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.8;
      color: var(--color-ink);
      background: var(--color-bg);
      -webkit-font-smoothing: antialiased;
    }

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

    img {
      max-width: 100%;
      display: block;
      border: 0;
    }

    ul, ol {
      list-style: none;
    }

    button {
      font-family: inherit;
      background: none;
      border: 0;
      cursor: pointer;
    }

    .container {
      max-width: 1200px;
      width: 100%;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .grid-container {
      max-width: 1200px;
      padding-left: 24px;
      padding-right: 24px;
    }

    h1, h2, h3 {
      color: var(--color-primary);
      line-height: 1.3;
    }

    h1 {
      font-size: 48px;
      font-weight: 600;
    }

    h2 {
      font-size: 32px;
      font-weight: 600;
    }

    h3 {
      font-size: 22px;
      font-weight: 600;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(201,138,61,.5);
      outline-offset: 3px;
      border-radius: 6px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      gap: .55rem;
      padding: .75rem 1.65rem;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      line-height: 1.3;
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease);
    }

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

    .btn:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .btn-gold {
      background: linear-gradient(135deg, #E2B267, #C98A3D);
      color: #1C2D26;
    }

    .btn-gold:hover {
      background: linear-gradient(135deg, #D9A457, #BF7F2F);
      color: #1C2D26;
    }

    .btn-line {
      background: rgba(255,255,255,.08);
      border-color: rgba(255,255,255,.72);
      color: #FFFFFF;
    }

    .btn-line:hover {
      background: rgba(255,255,255,.14);
      border-color: #FFFFFF;
      color: #FFFFFF;
    }

    .btn-dark {
      background: var(--color-primary);
      color: #FFFFFF;
      box-shadow: var(--shadow-sm);
    }

    .btn-dark:hover {
      background: #163A31;
      color: #fff;
    }

    .btn-nav-cta {
      min-height: 40px;
      padding: .45rem 1.1rem;
      font-size: 14px;
      border-radius: 12px;
    }

    /* ===== 顶部导航 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 999;
      height: 72px;
      background: rgba(255,255,255,.74);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-bottom: 1px solid rgba(228,223,212,.5);
      transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
    }

    .site-header.is-scrolled {
      background: rgba(255,255,255,.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: 0 1px 0 var(--color-line);
      border-bottom: 1px solid rgba(228,223,212,.8);
    }

    body.nav-open .site-header {
      background: var(--color-primary-900);
      border-bottom-color: rgba(255,255,255,.08);
    }

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

    .brand {
      display: inline-flex;
      align-items: center;
      flex-shrink: 0;
      gap: 9px;
    }

    .brand-mark {
      width: 30px;
      height: 30px;
      border-radius: 9px;
      background: linear-gradient(135deg, var(--color-primary-900), var(--color-primary));
      box-shadow: 0 4px 12px rgba(15,43,37,.16), inset -2px -2px 0 rgba(201,138,61,.28);
      position: relative;
      flex-shrink: 0;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-accent-2);
      right: 5px;
      bottom: 5px;
      box-shadow: 0 0 0 3px rgba(239,199,124,.16);
    }

    .brand-word {
      font-size: 22px;
      font-weight: 600;
      color: var(--color-primary);
      letter-spacing: -.02em;
      white-space: nowrap;
    }

    .brand-official {
      color: var(--color-accent-deep);
    }

    .nav-menu {
      display: flex;
      flex: 1;
      align-items: center;
      justify-content: center;
    }

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

    .nav-item {
      display: inline-block;
      position: relative;
      padding: 8px 2px;
      font-size: 15px;
      font-weight: 500;
      color: rgba(22,43,39,.78);
      transition: color .2s ease, opacity .2s ease;
    }

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

    .nav-item::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: -2px;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-accent);
      transform: translateX(-50%) scale(0);
      transition: transform .24s var(--ease);
    }

    .nav-item.active {
      color: var(--color-primary);
      font-weight: 600;
    }

    .nav-item.active::after {
      transform: translateX(-50%) scale(1);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 8px;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      border: 1px solid transparent;
      transition: background .2s ease;
    }

    .nav-toggle span {
      display: block;
      width: 19px;
      height: 2px;
      border-radius: 4px;
      background: var(--color-primary);
      transition: transform .25s var(--ease), opacity .2s ease, background .25s ease;
    }

    body.nav-open .nav-toggle span {
      background: #fff;
    }

    body.nav-open .nav-toggle span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

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

    body.nav-open .nav-toggle span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .mobile-menu-cta {
      display: none;
    }

    @media (max-width: 1024px) {
      .nav-links {
        gap: 20px;
      }
      .btn-nav-cta {
        display: none;
      }
      .nav-item {
        font-size: 14px;
      }
    }

    @media (max-width: 840px) {
      .nav-toggle {
        display: flex;
      }

      .nav-menu {
        position: absolute;
        top: 72px;
        left: 16px;
        right: 16px;
        background: var(--color-primary-900);
        border-radius: 0 0 22px 22px;
        padding: 40px 32px 48px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(14px);
        transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
        box-shadow: var(--shadow-md);
        align-items: flex-start;
        overflow-y: auto;
        max-height: calc(100vh - 90px);
      }

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

      .nav-menu .nav-links {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 8px;
      }

      .nav-menu .nav-item {
        color: rgba(255,255,255,.92);
        font-size: 18px;
        font-weight: 500;
        padding: 11px 0;
        border-radius: 8px;
        width: 100%;
      }

      .nav-menu .nav-item.active {
        color: #fff;
      }

      .nav-menu .nav-item.active::after {
        left: 0;
        transform: none;
        width: 20px;
        border-radius: 4px;
        height: 3px;
        bottom: 8px;
      }

      .mobile-menu-cta {
        display: block;
        margin-top: 28px;
      }
    }

    @media (max-width: 560px) {
      .header-inner {
        padding-left: 18px;
        padding-right: 18px;
      }

      .brand-word {
        font-size: 20px;
      }
    }

    /* ===== 通用区块 ===== */
    .section {
      padding: 96px 0;
    }

    .section-white {
      background: var(--color-surface);
    }

    .sec-kicker {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .14em;
      color: var(--color-accent-deep);
      text-transform: uppercase;
      margin-bottom: 16px;
    }

    .sec-kicker::before {
      content: "";
      width: 24px;
      height: 2px;
      border-radius: 3px;
      background: currentColor;
    }

    .sec-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 40px;
      margin-bottom: 52px;
    }

    .sec-head h2 {
      margin-bottom: 6px;
    }

    .sec-summary {
      max-width: 420px;
      color: #5B706B;
      font-size: 16px;
    }

    .sec-head.center {
      display: block;
      text-align: center;
    }

    .sec-head.center .sec-kicker {
      justify-content: center;
    }

    .sec-head.center .sec-summary {
      margin: 12px auto 0;
    }

    section[id],
    .section[id] {
      scroll-margin-top: 90px;
    }

    /* ===== Hero ===== */
    .scene-hero {
      position: relative;
      min-height: 640px;
      padding: 160px 0 110px;
      background:
        linear-gradient(135deg,
          rgba(15,43,37,.94) 0%,
          rgba(29,74,62,.78) 52%,
          rgba(201,138,61,.36) 100%),
        url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
      color: #FFFFFF;
      overflow: hidden;
    }

    .scene-hero .container {
      position: relative;
      z-index: 2;
    }

    .hero-grid {
      align-items: flex-end;
      row-gap: 42px;
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 500;
      letter-spacing: .06em;
      color: var(--color-accent-2);
      margin-bottom: 22px;
    }

    .hero-eyebrow i {
      font-size: 12px;
    }

    .hero-title {
      font-size: 44px;
      line-height: 1.28;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: -0.01em;
    }

    .hero-sub {
      font-size: 17px;
      line-height: 1.8;
      color: rgba(255,255,255,.8);
      max-width: 560px;
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
    }

    .hero-stat-panel {
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.26);
      border-radius: 32px;
      min-height: 182px;
      padding: 28px 26px;
      box-shadow: 0 24px 56px rgba(15,43,37,.3);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      text-align: center;
    }

    .hero-stat-panel .metric-label {
      font-size: 13px;
      color: var(--color-accent-2);
      letter-spacing: .08em;
      margin-bottom: 6px;
    }

    .hero-stat-panel .metric-value {
      display: block;
      font-family: var(--font-num);
      font-size: 68px;
      line-height: 1;
      color: #FFFFFF;
      margin: 6px 0 8px;
      letter-spacing: -0.02em;
    }

    .hero-stat-panel .metric-note {
      font-size: 14px;
      color: rgba(255,255,255,.68);
      line-height: 1.5;
    }

    /* ===== 场景总览卡片 ===== */
    .card-scene {
      display: flex;
      flex-direction: column;
      height: 100%;
      background: var(--color-surface);
      border: 1px solid var(--color-line);
      border-radius: 20px;
      padding: 32px 32px 30px;
      box-shadow: var(--shadow-sm);
      transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s ease;
    }

    .card-scene:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(201,138,61,.4);
    }

    .card-scene-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 26px;
    }

    .card-scene-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 14px;
      font-size: 22px;
      color: var(--color-accent-deep);
      background: linear-gradient(135deg, rgba(201,138,61,.18), rgba(239,199,124,.14));
      box-shadow: 0 8px 24px rgba(201,138,61,.12);
    }

    .card-scene-number {
      font-family: var(--font-num);
      font-size: 13px;
      letter-spacing: .12em;
      color: #B7A991;
    }

    .card-scene h3 {
      font-size: 22px;
      margin-bottom: 12px;
      color: var(--color-ink);
    }

    .card-scene p {
      font-size: 15px;
      color: #58706A;
      line-height: 1.8;
      margin-bottom: 22px;
      flex: 1;
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 5px 14px;
      font-size: 13px;
      font-weight: 500;
      color: var(--color-primary);
      background: #F1EDE4;
      border-radius: 999px;
      line-height: 1.5;
    }

    /* ===== 领域场标签 ===== */
    .field-section {
      background:
        linear-gradient(180deg, var(--color-bg) 0%, #FFFFFF 100%);
    }

    .field-pill {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 28px 20px;
      height: 100%;
      min-height: 176px;
      background: #FFFFFF;
      border: 1px solid var(--color-line);
      border-radius: 999px;
      box-shadow: var(--shadow-sm);
      transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s ease;
    }

    .field-pill:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(201,138,61,.48);
    }

    .field-pill i {
      font-size: 24px;
      color: var(--color-accent-deep);
      margin-bottom: 12px;
    }

    .field-pill strong {
      display: block;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-primary);
      line-height: 1.5;
    }

    .field-pill small {
      font-size: 13px;
      line-height: 1.7;
      color: #81938E;
      margin-top: 4px;
      max-width: 180px;
    }

    /* ===== 场景拆解 ===== */
    .scene-detail-section {
      background: var(--color-bg);
    }

    .detail-row {
      background: #FFFFFF;
      border: 1px solid var(--color-line);
      border-radius: 24px;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: box-shadow .3s ease;
    }

    .detail-row + .detail-row {
      margin-top: 64px;
    }

    .detail-row:hover {
      box-shadow: var(--shadow-md);
    }

    .detail-row .grid-x {
      align-items: stretch;
    }

    .detail-media {
      position: relative;
      height: 100%;
      min-height: 420px;
      overflow: hidden;
      background: #EDEADE;
    }

    .detail-media img {
      width: 100%;
      height: 100%;
      position: absolute;
      inset: 0;
      object-fit: cover;
      transition: transform .6s var(--ease);
    }

    .detail-row:hover .detail-media img {
      transform: scale(1.025);
    }

    .media-badge {
      position: absolute;
      left: 22px;
      bottom: 22px;
      z-index: 2;
      background: rgba(15,43,37,.72);
      color: #fff;
      border: 1px solid rgba(255,255,255,.28);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .08em;
    }

    .detail-content {
      display: flex;
      align-items: center;
      padding: 52px 54px;
      height: 100%;
    }

    .detail-copy {
      max-width: 520px;
      width: 100%;
    }

    .detail-copy h3 {
      font-size: 28px;
      margin: 4px 0 16px;
    }

    .detail-copy .lead {
      font-size: 15.5px;
      color: #58706A;
      margin-bottom: 24px;
    }

    .checklist {
      display: grid;
      gap: 14px;
    }

    .checklist li {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      font-size: 15px;
      line-height: 1.7;
      color: #2D453F;
    }

    .checklist li::before {
      content: "\f00c";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 22px;
      width: 22px;
      height: 22px;
      margin-top: 2px;
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 11px;
      color: var(--color-accent-deep);
      background: rgba(201,138,61,.14);
      border-radius: 50%;
    }

    .flip-row .media-cell {
      order: 2;
    }

    .flip-row .content-cell {
      order: 1;
    }

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

    .faq-aside {
      padding-right: 30px;
    }

    .faq-aside h2 {
      margin-bottom: 20px;
    }

    .faq-aside p {
      color: #5B706B;
      margin-bottom: 26px;
    }

    .faq-link-arrow {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 600;
      font-size: 15px;
      color: var(--color-primary);
      border-bottom: 2px solid var(--color-accent);
      padding-bottom: 4px;
      transition: gap .22s ease, color .2s ease;
    }

    .faq-link-arrow:hover {
      gap: 17px;
      color: var(--color-accent-deep);
    }

    .faq-item {
      border: 1px solid var(--color-line);
      background: var(--color-bg);
      border-radius: 16px;
      margin-bottom: 14px;
      padding: 0;
      transition: border-color .2s ease, background .2s ease;
    }

    .faq-item.active {
      border-color: rgba(201,138,61,.6);
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      width: 100%;
      padding: 22px 28px;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-ink);
      line-height: 1.6;
    }

    .faq-toggle {
      flex: 0 0 16px;
      position: relative;
      width: 16px;
      height: 16px;
      margin-left: 12px;
    }

    .faq-toggle::before,
    .faq-toggle::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      background: var(--color-primary);
      border-radius: 3px;
      transition: transform .22s var(--ease), opacity .2s ease, background .2s ease;
    }

    .faq-toggle::before {
      width: 14px;
      height: 2px;
      transform: translate(-50%, -50%);
    }

    .faq-toggle::after {
      width: 2px;
      height: 14px;
      transform: translate(-50%, -50%);
    }

    .faq-item.active .faq-toggle::after {
      transform: translate(-50%, -50%) rotate(90deg);
      opacity: 0;
    }

    .faq-item.active .faq-toggle {
      transform: rotate(180deg);
    }

    .faq-answer {
      display: grid;
      grid-template-rows: 0fr;
      transition: grid-template-rows .26s var(--ease);
    }

    .faq-answer .inner {
      overflow: hidden;
      min-height: 0;
    }

    .faq-item.active .faq-answer {
      grid-template-rows: 1fr;
    }

    .faq-answer p {
      padding: 0 28px 24px;
      color: #5B706B;
      font-size: 15px;
      line-height: 1.85;
    }

    /* ===== CTA ===== */
    .cta-band {
      position: relative;
      padding: 116px 0;
      text-align: center;
      background:
        linear-gradient(135deg,
          rgba(15,43,37,.96),
          rgba(29,74,62,.85) 55%,
          rgba(201,138,61,.48)),
        url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
      color: #FFFFFF;
    }

    .cta-band h2 {
      color: #FFFFFF;
      font-size: 32px;
      letter-spacing: -0.01em;
      margin-bottom: 16px;
    }

    .cta-band p {
      color: rgba(255,255,255,.76);
      max-width: 620px;
      margin: 0 auto 34px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
    }

    /* ===== Footer ===== */
    .footer {
      background: var(--color-primary-900);
      color: rgba(255,255,255,.8);
      padding-top: 20px;
    }

    .footer a {
      color: rgba(255,255,255,.72);
      transition: color .2s ease;
    }

    .footer a:hover {
      color: var(--color-accent-2);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 52px;
      padding: 70px 0 46px;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      font-size: 22px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.9;
      color: rgba(255,255,255,.6);
      max-width: 300px;
    }

    .footer-title {
      font-size: 14px;
      font-weight: 600;
      letter-spacing: .10em;
      color: #fff;
      margin-bottom: 18px;
    }

    .footer-links li {
      margin-bottom: 11px;
    }

    .footer-links a {
      font-size: 14px;
    }

    .footer-contact p {
      font-size: 14px;
      color: rgba(255,255,255,.55);
      margin-bottom: 6px;
    }

    .footer-contact a {
      font-size: 14px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,.1);
      padding: 22px 0;
      font-size: 14px;
      color: rgba(255,255,255,.42);
    }

    .footer-service i {
      width: 18px;
      margin-right: 4px;
      color: var(--color-accent-2);
    }

    /* ===== 响应式细节 ===== */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 36px;
      }

      .detail-content {
        padding: 40px 34px;
      }

      .detail-copy h3 {
        font-size: 24px;
      }

      .footer-grid {
        gap: 36px;
      }
    }

    @media (max-width: 840px) {
      .section {
        padding: 78px 0;
      }

      .hero-grid {
        align-items: center;
      }

      .hero-title {
        font-size: 36px;
      }

      .hero-stat-panel {
        max-width: 420px;
        margin: 0 auto;
      }

      .sec-head {
        display: block;
      }

      .sec-summary {
        margin-top: 12px;
      }

      .detail-row + .detail-row {
        margin-top: 34px;
      }

      .flip-row .media-cell {
        order: 0;
      }

      .flip-row .content-cell {
        order: 0;
      }

      .detail-row .grid-x {
        align-items: stretch;
      }

      .detail-media {
        min-height: 340px;
      }

      .detail-content {
        padding: 38px 28px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }
    }

    @media (max-width: 560px) {
      .section {
        padding: 62px 0;
      }

      .scene-hero {
        padding: 120px 0 70px;
        min-height: auto;
      }

      .hero-title {
        font-size: 28px;
      }

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

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

      .hero-stat-panel {
        min-height: 150px;
      }

      .hero-stat-panel .metric-value {
        font-size: 56px;
      }

      .sec-head {
        margin-bottom: 36px;
      }

      .sec-kicker {
        font-size: 12px;
      }

      h2 {
        font-size: 27px;
      }

      .field-pill {
        min-height: 118px;
        border-radius: 48px;
        flex-direction: row;
        gap: 12px;
        justify-content: center;
        padding: 18px 16px;
      }

      .field-pill i {
        margin-bottom: 0;
      }

      .field-pill strong {
        font-size: 15px;
      }

      .field-pill small {
        display: none;
      }

      .detail-content {
        padding: 30px 22px;
      }

      .detail-copy h3 {
        font-size: 21px;
      }

      .detail-media {
        min-height: 240px;
      }

      .media-badge {
        left: 14px;
        bottom: 14px;
      }

      .faq-aside {
        padding-right: 0;
        margin-bottom: 34px;
      }

      .faq-grid .cell {
        margin-bottom: 0;
      }

      .faq-question {
        padding: 18px 18px;
        font-size: 15px;
      }

      .faq-answer p {
        padding: 0 18px 20px;
      }

      .cta-band {
        padding: 84px 0;
      }

      .cta-band h2 {
        font-size: 27px;
      }

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

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 34px;
        padding: 50px 0 28px;
      }

      .container {
        padding-left: 18px;
        padding-right: 18px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
      }
    }

/* roulang page: category4 */
:root {
      --color-ink: #162B27;
      --color-primary: #1D4A3E;
      --color-primary-900: #0F2B25;
      --color-accent: #C98A3D;
      --color-accent-2: #EFC77C;
      --color-bg: #F8F6F0;
      --color-surface: #FFFFFF;
      --color-line: #E4DFD4;
      --shadow-md: 0 6px 18px rgba(20, 45, 38, .06);
      --shadow-lg: 0 18px 40px rgba(20, 45, 38, .14);
      --radius-sm: 10px;
      --radius-card: 18px;
      --radius-lg: 28px;
      --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
      --font-num: "DIN Alternate", "Bahnschrift", "Roboto Condensed", "Arial Narrow", sans-serif;
      --container: 1200px;
      --header-h: 72px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-cn);
      background: var(--color-bg);
      color: var(--color-ink);
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, opacity .2s ease, border-color .2s ease, background-color .2s ease;
    }

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

    ul,
    ol {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .grid-container {
      max-width: 1200px;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible,
    summary:focus-visible {
      outline: 3px solid rgba(201, 138, 61, .45);
      outline-offset: 2px;
      border-radius: 6px;
    }

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

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--color-accent);
      font-size: 13px;
      letter-spacing: .16em;
      font-weight: 600;
      text-transform: uppercase;
      margin-bottom: 10px;
    }

    .section-eyebrow::before {
      content: "";
      width: 24px;
      height: 1px;
      background: var(--color-accent);
      display: inline-block;
    }

    .section-title {
      font-size: 32px;
      line-height: 1.3;
      font-weight: 600;
      color: var(--color-primary-900);
      margin: 0 0 14px;
    }

    .section-lead {
      color: #53645E;
      font-size: 16px;
      max-width: 780px;
      line-height: 1.85;
      margin-bottom: 0;
    }

    .dark-section {
      background: linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-primary) 72%, rgba(201, 138, 61, .18) 130%);
      color: #F8F6F0;
    }

    .dark-section .section-title {
      color: #fff;
    }

    .dark-section .section-lead {
      color: rgba(255, 255, 255, .78);
    }

    /* Header */
    .site-header {
      position: fixed;
      left: 0;
      top: 0;
      width: 100%;
      z-index: 50;
      background: rgba(255, 255, 255, .94);
      border-bottom: 1px solid transparent;
      transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
    }

    .site-header.is-scrolled {
      background: rgba(255, 255, 255, .85);
      -webkit-backdrop-filter: blur(16px);
      backdrop-filter: blur(16px);
      border-bottom-color: rgba(228, 223, 212, .8);
      box-shadow: 0 10px 30px rgba(20, 45, 38, .05);
    }

    .top-utility {
      background: #F1EEE6;
      color: #687872;
      font-size: 12.5px;
      letter-spacing: .02em;
      line-height: 1.6;
      border-bottom: 1px solid rgba(228, 223, 212, .56);
    }

    .top-utility .container {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      min-height: 30px;
    }

    .header-main {
      min-height: var(--header-h);
    }

    .header-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: var(--header-h);
      flex-wrap: nowrap;
      gap: 18px;
    }

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

    .brand-mark {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-900));
      border-radius: 10px;
      display: inline-block;
      position: relative;
      box-shadow: 0 6px 14px rgba(29, 74, 62, .18);
    }

    .brand-mark::after {
      content: "";
      width: 14px;
      height: 14px;
      border: 2px solid var(--color-accent-2);
      border-radius: 4px;
      position: absolute;
      left: 8px;
      top: 8px;
    }

    .brand-word {
      font-size: 22px;
      font-weight: 600;
      color: var(--color-primary-900);
      letter-spacing: .02em;
      line-height: 1.1;
      white-space: nowrap;
    }

    .brand-word .brand-official {
      color: var(--color-accent);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      margin: 0;
    }

    .nav-item {
      position: relative;
      font-size: 15px;
      font-weight: 500;
      color: var(--color-primary-900);
      opacity: .78;
      padding: 8px 1px;
      display: inline-block;
    }

    .nav-item:hover {
      opacity: 1;
      color: var(--color-primary);
    }

    .nav-item.active {
      opacity: 1;
      color: var(--color-primary);
    }

    .nav-item.active::after {
      content: "";
      position: absolute;
      width: 6px;
      height: 6px;
      background: var(--color-accent);
      border-radius: 50%;
      left: 50%;
      bottom: -2px;
      transform: translateX(-50%);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--color-primary);
      color: #fff;
      border: 0;
      border-radius: 10px;
      font-size: 14px;
      font-weight: 500;
      min-height: 42px;
      padding: 0 22px;
      box-shadow: 0 6px 16px rgba(29, 74, 62, .12);
      cursor: pointer;
      white-space: nowrap;
      transition: transform .22s ease, box-shadow .22s ease, background-color .22s ease;
    }

    .nav-cta:hover {
      background: var(--color-primary-900);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--color-line);
      background: #fff;
      border-radius: 10px;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--color-primary-900);
      cursor: pointer;
    }

    /* Mobile nav */
    @media (max-width: 860px) {
      .top-utility .container {
        justify-content: center;
      }

      .desktop-nav {
        display: none;
      }

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

      .mobile-nav-panel {
        display: none;
        background: var(--color-primary-900);
        padding: 18px 0 28px;
        border-top: 1px solid rgba(255, 255, 255, .08);
      }

      .mobile-nav-panel.is-open {
        display: block;
      }

      .mobile-nav-panel .container {
        display: flex;
        flex-direction: column;
        gap: 6px;
      }

      .mobile-nav-panel a {
        color: #fff;
        font-size: 16px;
        padding: 12px 4px;
        border-bottom: 1px solid rgba(255, 255, 255, .07);
      }

      .mobile-nav-panel .nav-cta {
        margin-top: 14px;
        background: var(--color-accent);
        color: #fff;
      }
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 10px;
      min-height: 48px;
      padding: 0 26px;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
      transition: transform .22s ease, box-shadow .22s ease, background-color .22s ease, color .22s ease;
      line-height: 1.2;
    }

    .btn-accent {
      background: var(--color-accent);
      color: #fff;
      box-shadow: 0 10px 24px rgba(201, 138, 61, .24);
    }

    .btn-accent:hover {
      background: #B7762D;
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(201, 138, 61, .28);
    }

    .btn-outline {
      background: transparent;
      color: #fff;
      border-color: rgba(255, 255, 255, .78);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, .1);
      color: #fff;
      transform: translateY(-2px);
      border-color: #fff;
    }

    .btn-primary-light {
      background: var(--color-primary);
      color: #fff;
      box-shadow: 0 8px 24px rgba(29, 74, 62, .14);
    }

    .btn-primary-light:hover {
      background: var(--color-primary-900);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
    }

    .btn-dark {
      background: var(--color-primary-900);
      color: #fff;
    }

    .btn-dark:hover {
      background: #1D4A3E;
    }

    .btn-sm {
      min-height: 42px;
      padding: 0 18px;
      font-size: 14px;
      border-radius: 8px;
    }

    /* Hero */
    .help-hero {
      background:
        linear-gradient(95deg, rgba(15, 43, 37, .96) 10%, rgba(15, 43, 37, .82) 42%, rgba(29, 74, 62, .2) 100%),
        url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
      padding: 150px 0 86px;
      color: #fff;
      position: relative;
    }

    .help-hero .hero-breadcrumb {
      font-size: 13px;
      color: rgba(255, 255, 255, .62);
      display: flex;
      gap: 8px;
      align-items: center;
      margin-bottom: 18px;
      letter-spacing: .02em;
    }

    .help-hero .hero-breadcrumb a:hover {
      color: var(--color-accent-2);
    }

    .help-hero .eyebrow {
      display: inline-block;
      background: rgba(201, 138, 61, .15);
      border: 1px solid rgba(201, 138, 61, .35);
      color: var(--color-accent-2);
      font-size: 13px;
      padding: 6px 14px;
      border-radius: 999px;
      letter-spacing: .08em;
      margin-bottom: 20px;
    }

    .help-hero h1 {
      font-size: clamp(34px, 4.6vw, 52px);
      font-weight: 600;
      line-height: 1.25;
      margin: 0 0 18px;
      max-width: 820px;
      color: #fff;
    }

    .help-hero h1 .divider {
      color: var(--color-accent-2);
      font-weight: 400;
    }

    .help-hero .hero-text {
      font-size: 18px;
      line-height: 1.9;
      color: rgba(255, 255, 255, .76);
      margin-bottom: 30px;
      max-width: 720px;
    }

    .hero-btn-row {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 44px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, .15);
      max-width: 760px;
    }

    .hero-mini {
      display: flex;
      align-items: center;
      gap: 18px;
      color: #fff;
    }

    .hero-mini i {
      font-size: 25px;
      color: var(--color-accent-2);
      width: 46px;
      height: 46px;
      border-radius: 14px;
      background: rgba(255, 255, 255, .08);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .hero-mini .mini-label {
      display: block;
      font-size: 12px;
      color: rgba(255, 255, 255, .55);
      letter-spacing: .06em;
    }

    .hero-mini .mini-value {
      font-family: var(--font-num);
      font-size: 22px;
      font-weight: 600;
      line-height: 1.3;
    }

    /* Section spacing */
    .section-pad {
      padding: 82px 0;
    }

    .section-pad-sm {
      padding: 58px 0;
    }

    /* Help topic area */
    .help-topic-section {
      background: var(--color-bg);
      padding: 82px 0 72px;
    }

    .topic-intro {
      display: flex;
      flex-wrap: wrap;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 30px;
    }

    .topic-intro .section-head {
      margin-bottom: 0;
      max-width: 740px;
    }

    .topic-search-tip {
      background: rgba(255, 255, 255, .62);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      padding: 12px 18px;
      color: #5E6D67;
      font-size: 14px;
    }

    .topic-search-tip strong {
      color: var(--color-primary);
      margin-right: 8px;
      font-weight: 600;
    }

    .topic-card {
      background: var(--color-surface);
      border: 1px solid var(--color-line);
      border-radius: 20px;
      padding: 26px;
      min-height: 250px;
      box-shadow: var(--shadow-md);
      height: 100%;
      transition: box-shadow .28s ease, transform .28s ease;
      display: flex;
      flex-direction: column;
    }

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

    .topic-card-icon {
      width: 54px;
      height: 54px;
      background: linear-gradient(135deg, #E4EFEA, #D7E5DF);
      color: var(--color-primary);
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }

    .topic-card h3 {
      font-size: 21px;
      font-weight: 600;
      color: var(--color-primary-900);
      margin: 0 0 10px;
    }

    .topic-card p {
      color: #62716B;
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 16px;
      flex: 1;
    }

    .topic-card .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .topic-card .tag {
      display: inline-block;
      background: #F4F0E7;
      color: #7A6A50;
      padding: 4px 10px;
      border-radius: 999px;
      font-size: 12px;
      border: 1px solid #EBE2D2;
      line-height: 1.5;
    }

    /* Search keywords */
    .quick-search-panel {
      background: #fff;
      border: 1px solid var(--color-line);
      border-radius: var(--radius-lg);
      padding: 24px 28px;
      margin-top: 10px;
      box-shadow: var(--shadow-md);
    }

    .quick-search-panel .ks-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-primary);
      margin-bottom: 14px;
    }

    .quick-search-panel .ks-title i {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: #F6DDB2;
      color: #AA7632;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
    }

    .chip-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .chip-list .chip {
      background: var(--color-bg);
      color: #40564F;
      border: 1px solid #E5E0D4;
      border-radius: 999px;
      padding: 8px 16px;
      font-size: 13px;
      cursor: default;
    }

    .chip-list .chip i {
      color: var(--color-accent);
      font-size: 12px;
      margin-left: 4px;
    }

    /* Process / service band */
    .process-visual-section {
      background: linear-gradient(180deg, #F8F6F0 0%, #FFFFFF 100%);
      padding: 78px 0 88px;
    }

    .process-slide {
      display: flex;
      align-items: flex-start;
      gap: 35px;
      margin-top: 34px;
    }

    .process-left {
      width: 46%;
      flex-shrink: 0;
    }

    .process-left .frame-img {
      border-radius: 24px;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      position: relative;
      background: #DDE9E3;
    }

    .frame-img img {
      width: 100%;
      min-height: 320px;
      object-fit: cover;
    }

    .process-right {
      flex: 1;
    }

    .process-step {
      position: relative;
      padding-left: 62px;
      padding-bottom: 24px;
    }

    .process-step::before {
      content: "";
      position: absolute;
      left: 20px;
      top: 50px;
      bottom: 0;
      width: 1px;
      background: var(--color-line);
    }

    .process-step:last-child::before {
      display: none;
    }

    .step-num {
      position: absolute;
      left: 0;
      top: 0;
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--color-primary);
      color: #fff;
      font-family: var(--font-num);
      font-weight: 600;
      font-size: 17px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(29, 74, 62, .18);
    }

    .process-step h3 {
      font-size: 19px;
      font-weight: 600;
      color: var(--color-primary-900);
      margin: 0 0 6px;
    }

    .process-step p {
      color: #5C6C66;
      margin: 0;
      line-height: 1.75;
    }

    .process-step .time-note {
      color: var(--color-accent);
      font-size: 13px;
      margin-top: 2px;
    }

    /* FAQ */
    .faq-section {
      padding: 86px 0 76px;
      background: var(--color-bg);
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 300px 1fr;
      gap: 44px;
      align-items: start;
    }

    .faq-aside {
      position: sticky;
      top: 120px;
      background: #fff;
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-md);
    }

    .faq-aside .fa-phone-box {
      width: 50px;
      height: 50px;
      background: #F4E5CE;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: #B9772B;
      margin-bottom: 16px;
    }

    .faq-aside p {
      color: #60716B;
      font-size: 15px;
    }

    .faq-aside a {
      color: var(--color-primary);
      font-weight: 600;
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--color-line);
      border-radius: 16px;
      overflow: hidden;
      margin-bottom: 0;
      box-shadow: 0 2px 8px rgba(20, 45, 38, .03);
    }

    .faq-item > summary {
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 20px;
      padding: 18px 20px;
      cursor: pointer;
      color: var(--color-primary-900);
      font-size: 16px;
      font-weight: 600;
      line-height: 1.55;
      transition: color .2s;
      user-select: none;
    }

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

    .faq-item > summary:hover {
      color: var(--color-accent);
    }

    .faq-item > summary .faq-toggle {
      flex: 0 0 auto;
      width: 22px;
      height: 22px;
      position: relative;
      display: inline-block;
    }

    .faq-item > summary .faq-toggle::before,
    .faq-item > summary .faq-toggle::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      background: var(--color-accent);
      transform: translate(-50%, -50%);
      transition: transform .2s ease, opacity .2s ease;
    }

    .faq-item > summary .faq-toggle::before {
      width: 14px;
      height: 2px;
    }

    .faq-item > summary .faq-toggle::after {
      width: 2px;
      height: 14px;
    }

    .faq-item[open] > summary .faq-toggle::after {
      transform: translate(-50%, -50%) scaleY(0);
      opacity: 0;
    }

    .faq-item .faq-body {
      padding: 0 20px 22px 20px;
      color: #52625C;
      border-top: 1px dashed var(--color-line);
      padding-top: 14px;
      margin-top: 4px;
    }

    .faq-item .faq-body p {
      margin-bottom: 10px;
    }

    .faq-item .faq-body ol {
      margin: 8px 0 16px;
      padding-left: 20px;
      list-style: decimal;
    }

    .faq-item .faq-body li {
      margin-bottom: 6px;
    }

    /* CTA band */
    .cta-band {
      background: linear-gradient(135deg, var(--color-primary-900), var(--color-primary));
      color: #fff;
      padding: 66px 0;
      position: relative;
      overflow: hidden;
    }

    .cta-band::after {
      content: "";
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(201, 138, 61, .34), transparent 70%);
      position: absolute;
      right: -60px;
      top: -60px;
      border-radius: 50%;
    }

    .cta-band .cta-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      position: relative;
      z-index: 1;
      flex-wrap: wrap;
    }

    .cta-band h2 {
      font-size: 28px;
      line-height: 1.4;
      margin: 0 0 6px;
      color: #fff;
      font-weight: 600;
    }

    .cta-band p {
      margin-bottom: 0;
      color: rgba(255, 255, 255, .72);
      max-width: 640px;
    }

    .cta-action {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
    }

    /* Contact section */
    .contact-section {
      padding: 72px 0 84px;
      background: #fff;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.4fr;
      gap: 28px;
      align-items: start;
    }

    .contact-info-card {
      background: linear-gradient(135deg, var(--color-primary-900), var(--color-primary));
      border-radius: 22px;
      color: #fff;
      padding: 34px;
      box-shadow: var(--shadow-lg);
    }

    .contact-info-card h2 {
      color: #fff;
      font-size: 28px;
      margin-bottom: 14px;
    }

    .contact-info-card > p {
      color: rgba(255, 255, 255, .75);
      margin-bottom: 28px;
    }

    .contact-route {
      display: flex;
      gap: 12px;
      padding: 16px 0;
      border-top: 1px solid rgba(255, 255, 255, .1);
      align-items: flex-start;
    }

    .contact-route i {
      color: var(--color-accent-2);
      width: 30px;
      font-size: 19px;
      padding-top: 3px;
    }

    .contact-route .route-label {
      display: block;
      color: rgba(255, 255, 255, .5);
      font-size: 12px;
      margin-top: 4px;
    }

    .contact-route a,
    .contact-route span.route-value {
      font-size: 18px;
      color: #fff;
      font-weight: 500;
      line-height: 1.5;
    }

    .form-panel {
      background: var(--color-bg);
      border: 1px solid var(--color-line);
      border-radius: 22px;
      padding: 34px 30px;
      box-shadow: var(--shadow-md);
    }

    .form-panel .form-heading {
      color: var(--color-primary-900);
      margin: 0 0 8px;
      font-size: 23px;
      font-weight: 600;
    }

    .form-panel .form-headnote {
      color: #6B7772;
      margin-bottom: 26px;
      font-size: 14px;
    }

    .form-field {
      margin-bottom: 22px;
    }

    .form-field label {
      display: block;
      color: var(--color-primary-900);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .form-field input,
    .form-field textarea,
    .form-field select {
      width: 100%;
      border: 1px solid #DAD5CA;
      background: #FFFDF7;
      min-height: 50px;
      border-radius: 10px;
      padding: 10px 14px;
      color: var(--color-ink);
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .form-field textarea {
      min-height: 130px;
      resize: vertical;
    }

    .form-field input:focus,
    .form-field textarea:focus,
    .form-field select:focus {
      border-color: var(--color-accent);
      background: #FFFFFF;
      box-shadow: 0 0 0 4px rgba(201, 138, 61, .12);
      outline: none;
    }

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

    .form-note {
      color: #9B8372;
      font-size: 13px;
      margin-top: 18px;
      text-align: center;
    }

    /* Footer */
    .footer {
      background: var(--color-primary-900);
      color: rgba(255, 255, 255, .8);
      padding: 72px 0 0;
      position: relative;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1.10fr 1fr;
      gap: 34px;
      padding-bottom: 42px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .footer-brand .brand-word {
      color: #fff;
      font-size: 22px;
    }

    .footer-brand .brand-official {
      color: var(--color-accent);
    }

    .footer-desc {
      color: rgba(255, 255, 255, .52);
      font-size: 14px;
      line-height: 1.9;
      max-width: 300px;
    }

    .footer-title {
      color: #fff;
      font-weight: 600;
      font-size: 16px;
      margin-bottom: 18px;
      padding-bottom: 8px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .62);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--color-accent-2);
      padding-left: 4px;
    }

    .footer-contact {
      color: rgba(255, 255, 255, .62);
      font-size: 14px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-contact p {
      margin: 0;
    }

    .footer-contact a {
      color: #fff;
    }

    .footer-contact a:hover {
      color: var(--color-accent-2);
    }

    .footer-service a {
      display: flex;
      align-items: center;
      gap: 6px;
      color: rgba(255, 255, 255, .62);
    }

    .footer-service a::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--color-accent);
      border-radius: 50%;
      display: inline-block;
    }

    .footer-service a:hover {
      color: var(--color-accent-2);
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .1);
      padding: 22px 0;
      color: rgba(255, 255, 255, .42);
      font-size: 13px;
    }

    .footer-bottom p {
      margin: 0;
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, .6);
    }

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

    /* Responsive */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      .faq-list {
        grid-template-columns: 1fr;
      }

      .process-slide {
        flex-direction: column;
      }

      .process-left {
        width: 100%;
      }

      .process-right {
        width: 100%;
      }

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

    @media (max-width: 900px) {
      .nav-links .nav-item {
        font-size: 14px;
        gap: 14px;
      }
    }

    @media (max-width: 860px) {
      .desktop-nav {
        display: none;
      }

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

      .nav-cta {
        display: none;
      }

      .help-hero {
        padding-top: 136px;
      }

      .section-pad {
        padding: 60px 0;
      }

      .faq-layout {
        grid-template-columns: 1fr;
      }

      .faq-aside {
        position: static;
      }
    }

    @media (max-width: 768px) {
      .section-title {
        font-size: 27px;
      }

      .help-hero h1 {
        font-size: 34px;
      }

      .help-hero .hero-text {
        font-size: 16px;
      }

      .hero-meta {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px;
      }

      .hero-mini i {
        width: 38px;
        height: 38px;
        font-size: 20px;
      }

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

      .form-panel {
        padding: 28px 22px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .hero-meta {
        grid-template-columns: 1fr;
      }

      .hero-btn-row {
        display: grid;
        width: 100%;
      }

      .hero-btn-row .btn {
        width: 100%;
      }

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

      .contact-section {
        padding: 52px 0 66px;
      }

      .contact-info-card,
      .form-panel {
        padding: 24px 20px;
      }

      .topic-card {
        padding: 20px;
      }
    }