/* roulang page: index */
:root{
  --primary:#3565B9;--primary-hover:#26509A;--accent:#2DA8A0;--star:#D99A2B;
  --bg:#F5F8FC;--card:#FFFFFF;--alt-bg:#EAF1F8;
  --title:#1C2B3A;--text:#2E3F4E;--sub:#5B6C7D;--muted:#8FA0AE;
  --border:rgba(53,101,185,.14);--shadow:0 20px 40px -18px rgba(28,43,58,.12);
  --shadow-hover:0 30px 50px -20px rgba(53,101,185,.16);
  --radius:16px;--btn-radius:999px;--input-radius:10px;--dock-radius:999px;
  --max-width:1180px;--gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--alt-bg)}
::-webkit-scrollbar-thumb{background:rgba(53,101,185,.4);border-radius:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--gutter)}
.section-padding{padding:96px 0}
.h2-section{font-size:clamp(1.6rem,3.4vw,2.2rem);color:var(--title);font-weight:800;line-height:1.3;margin-bottom:16px}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:600;color:var(--primary);margin-bottom:10px;letter-spacing:.04em}
.section-label::before{content:"";display:inline-block;width:22px;height:2px;background:var(--primary);border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--btn-radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .25s ease;text-decoration:none;padding:14px 28px;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px -8px rgba(53,101,185,.45)}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}
.btn-outline:hover{background:rgba(53,101,185,.06);color:var(--primary-hover);border-color:var(--primary-hover);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary);border:1px solid #fff}
.btn-white:hover{background:var(--alt-bg);color:var(--primary);transform:translateY(-2px)}
.btn-lg{padding:18px 38px;font-size:1.05rem}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid var(--border);border-radius:999px;font-size:.85rem;color:var(--sub);background:rgba(255,255,255,.7)}
.badge i{color:var(--accent)}

/* Header Dock */
.dock-wrap{position:relative;z-index:100;padding-top:16px}
.dock{max-width:var(--max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:70px;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:var(--dock-radius);box-shadow:0 12px 30px -12px rgba(28,43,58,.16)}
.dock-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.dock-logo svg{width:30px;height:30px}
.dock-logo span{font-size:1.15rem;font-weight:800;color:var(--title);letter-spacing:.02em;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;padding:0 16px}
.dock-nav a{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:999px;font-size:.95rem;font-weight:500;color:var(--sub);transition:all .2s ease;position:relative;text-decoration:none}
.dock-nav a:hover{color:var(--primary);background:rgba(53,101,185,.05)}
.dock-nav a.active{color:var(--primary);font-weight:700;background:rgba(53,101,185,.06)}
.dock-nav a.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.dock-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.dock-search-btn{width:40px;height:40px;border-radius:50%;border:none;background:rgba(53,101,185,.08);color:var(--primary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}
.dock-search-btn:hover{background:rgba(53,101,185,.16)}
.dock-search-box{display:flex;align-items:center;gap:6px;background:rgba(53,101,185,.06);border-radius:999px;padding:0 12px;height:40px;width:0;opacity:0;overflow:hidden;transition:all .3s ease;border:1px solid transparent}
.dock-search-box.open{width:190px;opacity:1;border-color:var(--border)}
.dock-search-box input{border:none;outline:none;background:transparent;font-size:.9rem;width:100%;color:var(--text)}
.dock-search-box i{color:var(--sub);font-size:.85rem}
.dock-burger{display:none;width:40px;height:40px;border-radius:50%;border:none;background:rgba(53,101,185,.08);color:var(--primary);cursor:pointer;font-size:1.1rem;align-items:center;justify-content:center}
.dock-mobile-menu{display:none}

/* Hero */
.hero{position:relative;background:url('/assets/images/backpic/back-1.png') center top/cover no-repeat,padding-bottom:40px}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(245,248,252,.94) 0%,#F5F8FC 100%);z-index:1}
.hero-inner{position:relative;z-index:2;padding:clamp(80px,12vh,140px) 0;display:flex;align-items:center;gap:48px;flex-wrap:wrap}
.hero-left{flex:1 1 55%;min-width:320px}
.hero-right{flex:1 1 38%;min-width:280px;display:flex;justify-content:center}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.hero h1{font-size:clamp(2.2rem,5.2vw,3.4rem);line-height:1.25;font-weight:800;color:var(--title);margin-bottom:20px}
.hero h1 .highlight{color:var(--primary)}
.hero-sub{font-size:1.08rem;color:var(--sub);line-height:1.8;max-width:540px;margin-bottom:32px}
.hero-cta{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.hero-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary);text-decoration:none}
.hero-link:hover{color:var(--primary-hover)}
.hero-link i{transition:transform .2s}
.hero-link:hover i{transform:translateX(4px)}
.hero-visual{position:relative;width:100%;max-width:460px}
.hero-visual .glow{position:absolute;inset:20px;background:radial-gradient(circle,rgba(53,101,185,.15),transparent 70%);filter:blur(30px);z-index:1}
.hero-visual img{position:relative;z-index:2;width:100%;border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--border)}
.hero-stats{display:flex;gap:24px;margin-top:44px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat strong{display:block;font-size:1.6rem;font-weight:800;color:var(--title)}
.hero-stat span{font-size:.8rem;color:var(--muted)}
.hero-login-card{position:relative;z-index:2;background:#fff;border-radius:20px;border:1px solid var(--border);box-shadow:var(--shadow);padding:28px;width:100%;max-width:360px}
.hero-login-card h3{font-size:1.2rem;font-weight:700;color:var(--title);margin-bottom:4px}
.hero-login-card p{font-size:.85rem;color:var(--muted);margin-bottom:18px}
.hero-login-card input{width:100%;height:44px;border:1px solid var(--border);border-radius:var(--input-radius);padding:0 14px;font-size:.9rem;margin-bottom:12px;color:var(--text);background:#fff;transition:border-color .2s,box-shadow .2s}
.hero-login-card input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(53,101,185,.12);outline:none}
.hero-login-card .btn{width:100%;margin-bottom:12px}
.hero-login-links{display:flex;justify-content:space-between;font-size:.8rem;color:var(--sub)}
.hero-login-links a{color:var(--sub);text-decoration:none}
.hero-login-links a:hover{color:var(--primary)}

/* Orbit 轮播 */
.screenshot-section{background:#fff}
.orbit-container{max-width:1000px;margin:0 auto}
.orbit-slide{padding:20px}
.orbit-dots{display:flex;justify-content:center;gap:8px;margin-top:24px}
.orbit-dot{width:10px;height:10px;border-radius:999px;background:var(--border);cursor:pointer;transition:all .3s ease;border:none}
.orbit-dot.active{width:28px;background:var(--primary)}
.screenshot-card{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.screenshot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.screenshot-card img{width:100%;height:200px;object-fit:cover}
.screenshot-card-body{padding:20px}
.screenshot-card h3{font-size:1.05rem;font-weight:700;color:var(--title);margin-bottom:6px}
.screenshot-card p{font-size:.85rem;color:var(--sub);line-height:1.6}
.screenshot-featured img{height:300px}

/* 价值区 不对称 */
.value-section{background:var(--bg)}
.value-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.value-card{background:#fff;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);padding:32px;transition:all .25s ease}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.value-card-large{grid-column:span 7}
.value-card-slim{grid-column:span 5}
.value-card-wide{grid-column:span 6}
.value-icon{width:40px;height:40px;border-radius:12px;background:rgba(53,101,185,.10);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.2rem;margin-bottom:18px}
.value-card h3{font-size:1.1rem;font-weight:700;color:var(--title);margin-bottom:8px}
.value-card p{font-size:.9rem;color:var(--sub);line-height:1.7}
.value-list{list-style:none;margin-top:16px;display:grid;gap:8px}
.value-list li{display:flex;align-items:center;gap:8px;font-size:.88rem;color:var(--text)}
.value-list li i{color:var(--accent);font-size:.85rem;flex-shrink:0}

/* 系统要求 */
.sys-section{background:#fff}
.sys-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.sys-card{background:#fff;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);padding:32px;position:relative}
.sys-card .tag-corner{position:absolute;top:16px;right:16px;font-size:.72rem;padding:4px 12px;border-radius:999px;background:rgba(45,168,160,.12);color:var(--accent);font-weight:600}
.sys-card h3{font-size:1.15rem;font-weight:700;color:var(--title);margin-bottom:16px}
.sys-card ul{display:grid;gap:8px}
.sys-card li{display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--text);line-height:1.5}
.sys-card li i{color:var(--accent);font-size:.85rem;flex-shrink:0}
.sys-icons{display:flex;gap:16px;margin-top:20px;padding-top:20px;border-top:1px solid var(--border);color:var(--muted);font-size:1.4rem}

/* 评价墙 */
.review-section{background:#fff}
.review-overview{display:flex;align-items:center;gap:32px;margin-bottom:32px;flex-wrap:wrap}
.review-score{text-align:center}
.review-score strong{display:block;font-size:3rem;font-weight:800;color:var(--title)}
.review-score span{font-size:.85rem;color:var(--muted)}
.review-stars{color:var(--star);letter-spacing:2px;font-size:1.1rem}
.review-stars small{color:var(--muted)}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:var(--bg);border-radius:var(--radius);border-left:3px solid var(--primary);padding:24px;box-shadow:var(--shadow);transition:transform .25s}
.review-card:hover{transform:translateY(-3px)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}
.review-name{font-weight:700;color:var(--title);font-size:.95rem}
.review-source{font-size:.75rem;color:var(--muted)}
.review-text{font-size:.9rem;color:var(--text);line-height:1.75}
.review-tag{display:inline-block;margin-top:12px;font-size:.75rem;color:var(--accent);background:rgba(45,168,160,.1);padding:3px 12px;border-radius:999px}

/* 下载按钮组 */
.download-section{background:var(--alt-bg)}
.download-wrap{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.download-info{flex:1 1 360px}
.download-info h2{margin-bottom:12px}
.download-info p{color:var(--sub);font-size:.95rem;margin-bottom:24px}
.download-buttons{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;flex:1 1 420px}
.download-btn-main{grid-column:span 2;background:var(--primary);color:#fff;border-radius:14px;padding:18px 24px;display:flex;align-items:center;gap:16px;text-decoration:none;transition:all .25s ease;box-shadow:0 10px 20px -8px rgba(53,101,185,.4)}
.download-btn-main:hover{background:var(--primary-hover);transform:translateY(-2px);color:#fff}
.download-btn-main i{font-size:1.6rem;background:rgba(255,255,255,.2);width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center}
.download-btn-main .btn-title{font-size:1.15rem;font-weight:700;display:block}
.download-btn-main .btn-sub{font-size:.75rem;opacity:.8}
.download-btn-platform{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--text);font-size:.88rem;font-weight:600;transition:all .2s ease}
.download-btn-platform:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.download-btn-platform i{font-size:1.3rem;color:var(--primary)}
.download-qr{text-align:center;margin-top:16px;grid-column:span 2}
.download-qr .qr-box{display:inline-block;background:#fff;border:1px solid var(--border);border-radius:14px;padding:10px}
.download-qr .qr-box img{width:110px;height:110px;border-radius:8px}
.download-qr p{font-size:.78rem;color:var(--muted);margin-top:6px}

/* 最新信息 */
.news-section{background:var(--bg)}
.news-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.news-header .more-link{font-size:.9rem;font-weight:600;color:var(--primary);text-decoration:none}
.news-header .more-link i{margin-left:4px;transition:transform .2s}
.news-header .more-link:hover i{transform:translateX(4px)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);padding:24px;display:flex;flex-direction:column;gap:10px;transition:all .25s ease;text-decoration:none;color:var(--text)}
.news-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.news-cat{display:inline-block;font-size:.75rem;color:var(--primary);border:1px solid var(--primary);border-radius:999px;padding:3px 12px;width:fit-content;font-weight:600}
.news-card h3{font-size:1.05rem;font-weight:700;color:var(--title);line-height:1.5;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-card p{font-size:.88rem;color:var(--muted);line-height:1.6;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;flex:1}
.news-meta{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:var(--sub)}
.news-more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.news-empty{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fff;border:2px dashed var(--border);border-radius:var(--radius);padding:60px;color:var(--muted)}
.news-empty i{font-size:2.4rem;margin-bottom:12px}
.news-empty p{font-size:.95rem}

/* 登录表单区 */
.login-section{background:#fff}
.login-box{background:#fff;border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);display:flex;overflow:hidden;flex-wrap:wrap}
.login-left{flex:1 1 45%;background:var(--alt-bg);padding:48px;display:flex;flex-direction:column;justify-content:center;min-width:300px}
.login-left h2{color:var(--title);font-weight:800;font-size:1.8rem;margin-bottom:12px}
.login-left p{color:var(--sub);font-size:.95rem;line-height:1.7}
.login-left ul{list-style:none;margin-top:20px;display:grid;gap:10px}
.login-left li{display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--text)}
.login-left li i{color:var(--accent)}
.login-right{flex:1 1 50%;padding:48px;min-width:300px;background:#fff}
.login-form{max-width:420px}
.login-form label{display:block;font-size:.85rem;font-weight:600;color:var(--title);margin-bottom:6px}
.login-form input{width:100%;height:48px;border:1px solid var(--border);border-radius:var(--input-radius);padding:0 16px;margin-bottom:18px;font-size:.95rem;color:var(--text);background:#fff;transition:border-color .2s,box-shadow .2s}
.login-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(53,101,185,.12);outline:none}
.login-form .btn{width:100%;margin-top:4px}
.login-links{display:flex;justify-content:space-between;margin-top:16px;font-size:.85rem}
.login-links a{color:var(--sub);text-decoration:none}
.login-links a:hover{color:var(--primary)}

/* FAQ */
.faq-section{background:var(--bg)}
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .25s}
.faq-item.open{box-shadow:var(--shadow-hover)}
.faq-question{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;gap:16px}
.faq-question h3{font-size:1rem;font-weight:700;color:var(--title);line-height:1.5}
.faq-icon{width:28px;height:28px;border-radius:50%;background:rgba(53,101,185,.08);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.9rem;transition:transform .3s}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 24px}
.faq-item.open .faq-answer{max-height:300px;padding:0 24px 20px}
.faq-answer p{font-size:.9rem;color:var(--sub);line-height:1.8}

/* CTA 横幅 */
.cta-banner{background:var(--bg)}
.cta-card{background:var(--primary);border-radius:24px;position:relative;overflow:hidden;padding:72px 48px;text-align:center}
.cta-card::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.12}
.cta-card::after{content:"";position:absolute;top:-50px;right:-50px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.08)}
.cta-card h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;position:relative;z-index:2;margin-bottom:12px}
.cta-card p{color:rgba(255,255,255,.85);font-size:.95rem;position:relative;z-index:2;margin-bottom:32px}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2}

/* Footer */
.footer{background:#fff;border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-bottom:48px}
.footer-brand p{font-size:.85rem;color:var(--muted);line-height:1.6;margin-top:12px}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{width:36px;height:36px;border-radius:50%;background:var(--alt-bg);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:all .2s}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.footer h4{font-size:.95rem;font-weight:700;color:var(--title);margin-bottom:16px}
.footer-links{display:grid;gap:8px}
.footer-links a{font-size:.85rem;color:var(--sub);position:relative;text-decoration:none;transition:color .2s;padding-bottom:2px;width:fit-content}
.footer-links a:hover{color:var(--primary)}
.footer-links a::after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);transition:width .2s ease}
.footer-links a:hover::after{width:100%}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;text-align:center;font-size:.8rem;color:var(--muted)}

/* 响应式 */
@media (max-width:1023px){
  .section-padding{padding:72px 0}
  .value-card-large{grid-column:span 12}
  .value-card-slim{grid-column:span 6}
  .value-card-wide{grid-column:span 6}
  .sys-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:639px){
  .section-padding{padding:52px 0}
  .dock{height:60px;border-radius:36px;padding:0 14px;width:calc(100% - 24px)}
  .dock-nav{display:none}
  .dock-search-box{display:none}
  .dock-burger{display:flex}
  .dock-actions .btn{display:none}
  .dock-mobile-menu{position:absolute;top:72px;left:12px;right:12px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:16px;flex-direction:column;gap:6px;z-index:99;display:none}
  .dock-mobile-menu.show{display:flex}
  .dock-mobile-menu a{padding:12px 16px;border-radius:12px;font-size:.95rem;color:var(--text);text-decoration:none}
  .dock-mobile-menu a.active{background:rgba(53,101,185,.08);color:var(--primary);font-weight:700}
  .hero-inner{flex-direction:column;padding:64px 0 48px}
  .hero-right{order:-1;max-width:320px}
  .hero-visual img{border-radius:16px}
  .hero-stats{gap:16px;margin-top:24px}
  .hero-stat strong{font-size:1.2rem}
  .value-card-slim{grid-column:span 12}
  .value-card-wide{grid-column:span 12}
  .review-grid{grid-template-columns:1fr}
  .download-wrap{flex-direction:column;gap:24px}
  .download-buttons{grid-template-columns:1fr}
  .download-btn-main{grid-column:span 1}
  .download-qr{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .login-box{flex-direction:column}
  .login-left,.login-right{padding:32px}
  .footer-grid{grid-template-columns:1fr}
  .cta-card{padding:48px 24px}
  .cta-buttons{flex-direction:column}
}

/* roulang page: article */
:root {
    --primary: #3565B9;
    --primary-hover: #26509A;
    --accent: #2DA8A0;
    --star: #D99A2B;
    --page-bg: #F5F8FC;
    --card-bg: #FFFFFF;
    --alt-bg: #EAF1F8;
    --title-color: #1C2B3A;
    --text-color: #2E3F4E;
    --sub-text: #5B6C7D;
    --muted-text: #8FA0AE;
    --line-color: rgba(53, 101, 185, 0.14);
    --shadow: 0 20px 40px -18px rgba(28, 43, 58, 0.12);
    --shadow-hover: 0 30px 50px -20px rgba(53, 101, 185, 0.16);
    --radius: 16px;
    --radius-btn: 999px;
    --radius-input: 10px;
    --container: 1180px;
    --section-pad: 96px 0;
    --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  }

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

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }

  body {
    font-family: var(--font-family);
    background: var(--page-bg);
    color: var(--text-color);
    line-height: 1.75;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

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

  :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }

  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }
  ::-webkit-scrollbar-track {
    background: var(--alt-bg);
  }
  ::-webkit-scrollbar-thumb {
    background: rgba(53, 101, 185, 0.4);
    border-radius: 999px;
  }

  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
  }

  .section {
    padding: var(--section-pad);
  }

  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: .85rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: .04em;
    margin-bottom: 14px;
    text-transform: uppercase;
  }

  .section-label::before {
    content: "";
    width: 24px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
  }

  .section-title {
    font-size: clamp(1.6rem, 3.4vw, 2.2rem);
    font-weight: 800;
    color: var(--title-color);
    line-height: 1.3;
    margin: 0 0 12px;
  }

  .section-sub {
    color: var(--sub-text);
    font-size: 1rem;
    max-width: 680px;
    line-height: 1.75;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: .95rem;
    padding: 12px 26px;
    border: 1px solid transparent;
    cursor: pointer;
    line-height: 1.4;
    transition: all .25s ease;
    font-family: var(--font-family);
  }

  .btn i {
    font-size: .9em;
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 20px -8px rgba(53, 101, 185, 0.5);
  }

  .btn-primary:hover {
    background: var(--primary-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 26px -8px rgba(53, 101, 185, 0.55);
  }

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

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

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

  .btn-white:hover {
    background: var(--alt-bg);
    color: var(--primary-hover);
    transform: translateY(-2px);
  }

  .badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 600;
    border: 1px solid rgba(53, 101, 185, 0.25);
    color: var(--primary);
    background: rgba(53, 101, 185, 0.04);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 500;
    border: 1px solid rgba(53, 101, 185, 0.2);
    color: var(--sub-text);
    transition: all .2s ease;
  }

  .tag:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(53, 101, 185, 0.04);
  }

  /* ===== Dock Navigation ===== */
  .dock-wrapper {
    padding-top: 24px;
    position: relative;
    z-index: 50;
  }

  .dock {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.82);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(53, 101, 185, 0.12);
    border-radius: 36px;
    padding: 12px 24px;
    box-shadow: 0 12px 30px -12px rgba(28, 43, 58, 0.16);
  }

  .dock-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--title-color);
  }

  .dock-logo span {
    letter-spacing: .02em;
  }

  .dock-logo:hover {
    color: var(--primary);
  }

  .dock-nav {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .dock-nav a {
    padding: 8px 16px;
    color: var(--sub-text);
    font-size: .92rem;
    font-weight: 500;
    border-radius: 999px;
    position: relative;
    transition: color .2s;
  }

  .dock-nav a::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    transform: translateX(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0;
    transition: opacity .2s;
  }

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

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

  .dock-nav a.active::before {
    opacity: 1;
  }

  .dock-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .dock-search-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--line-color);
    background: rgba(255, 255, 255, 0.7);
    color: var(--sub-text);
    cursor: pointer;
    transition: all .2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .dock-search-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
  }

  .dock-search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid var(--line-color);
    border-radius: 999px;
    padding: 0 14px;
    height: 38px;
    width: 0;
    opacity: 0;
    overflow: hidden;
    transition: all .3s ease;
  }

  .dock-search-box.open {
    width: 200px;
    opacity: 1;
  }

  .dock-search-box i {
    color: var(--muted-text);
    font-size: .82rem;
  }

  .dock-search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: .88rem;
    width: 100%;
    font-family: var(--font-family);
    color: var(--title-color);
  }

  .dock-burger {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--line-color);
    background: #fff;
    color: var(--title-color);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
  }

  /* ===== Article Page ===== */
  .article-header {
    background: linear-gradient(180deg, rgba(245, 248, 252, 0.94) 0%, #F5F8FC 100%);
    padding: 64px 0 32px;
    position: relative;
  }

  .article-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: .12;
    pointer-events: none;
  }

  .article-header-inner {
    position: relative;
    z-index: 1;
  }

  .breadcrumb {
    font-size: .85rem;
    color: var(--muted-text);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 28px;
  }

  .breadcrumb a {
    color: var(--sub-text);
  }

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

  .breadcrumb .sep {
    opacity: .5;
  }

  .article-category {
    display: inline-block;
    margin-bottom: 16px;
  }

  .article-title {
    font-size: clamp(1.8rem, 3.6vw, 2.4rem);
    font-weight: 800;
    color: var(--title-color);
    line-height: 1.3;
    margin: 0 0 20px;
    max-width: 860px;
  }

  .article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 24px;
  }

  .article-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--muted-text);
    font-size: .85rem;
  }

  .article-meta-item i {
    font-size: .8rem;
  }

  .article-meta-item .avatar-sm {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--alt-bg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: .75rem;
    font-weight: 700;
  }

  .article-summary {
    background: var(--alt-bg);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin-bottom: 40px;
    border-left: 4px solid var(--primary);
    color: var(--sub-text);
    font-size: 1rem;
    line-height: 1.8;
  }

  .article-main {
    padding: 32px 0 72px;
  }

  .article-body {
    max-width: 720px;
    margin: 0 auto;
  }

  .article-content {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: clamp(24px, 4vw, 48px);
    border: 1px solid rgba(53, 101, 185, 0.06);
  }

  .article-content > *:first-child {
    margin-top: 0;
  }

  .article-content p {
    margin: 0 0 1.2em;
    color: var(--text-color);
    line-height: 1.85;
    font-size: 1rem;
  }

  .article-content h2,
  .article-content h3,
  .article-content h4 {
    color: var(--title-color);
    font-weight: 700;
    line-height: 1.4;
    margin: 1.6em 0 .6em;
  }

  .article-content h2 {
    font-size: 1.5rem;
  }

  .article-content h3 {
    font-size: 1.25rem;
  }

  .article-content h4 {
    font-size: 1.1rem;
  }

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

  .article-content li {
    margin-bottom: .45em;
    line-height: 1.75;
  }

  .article-content blockquote {
    border-left: 4px solid var(--primary);
    background: var(--page-bg);
    padding: 20px 24px;
    border-radius: 0 12px 12px 0;
    margin: 1.4em 0;
    color: var(--sub-text);
    font-style: normal;
  }

  .article-content img {
    border-radius: 12px;
    margin: 1.4em auto;
    box-shadow: 0 12px 30px -12px rgba(28, 43, 58, 0.18);
  }

  .article-content figure {
    margin: 1.6em 0;
  }

  .article-content figcaption {
    text-align: center;
    font-size: .85rem;
    color: var(--muted-text);
    margin-top: 10px;
  }

  .article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4em 0;
    border-radius: 12px;
    overflow: hidden;
  }

  .article-content th {
    background: var(--alt-bg);
    color: var(--title-color);
    font-weight: 600;
    padding: 12px 16px;
    text-align: left;
  }

  .article-content td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line-color);
  }

  .article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(53, 101, 185, .3);
  }

  .article-content a:hover {
    text-decoration-color: var(--primary);
  }

  .article-tags {
    max-width: 720px;
    margin: 28px auto 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0;
  }

  .article-tags .label {
    font-size: .85rem;
    color: var(--muted-text);
  }

  .article-nav {
    max-width: 720px;
    margin: 0 auto;
    padding-top: 40px;
  }

  .article-nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .article-nav-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--line-color);
    box-shadow: 0 4px 16px -6px rgba(28, 43, 58, 0.06);
    padding: 20px 24px;
    display: block;
    transition: all .25s ease;
  }

  .article-nav-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    border-color: rgba(53, 101, 185, 0.28);
  }

  .article-nav-card .nav-label {
    font-size: .78rem;
    color: var(--muted-text);
    margin-bottom: 6px;
    display: block;
  }

  .article-nav-card .nav-title {
    font-size: .95rem;
    font-weight: 600;
    color: var(--title-color);
    line-height: 1.5;
    margin: 0;
  }

  .article-nav-card.next {
    text-align: right;
  }

  .article-back {
    max-width: 720px;
    margin: 32px auto 0;
    text-align: center;
  }

  .article-back a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--sub-text);
    font-size: .9rem;
  }

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

  /* ===== Related Posts ===== */
  .related-section {
    background: #fff;
    border-top: 1px solid var(--line-color);
    padding: 72px 0;
  }

  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 36px;
  }

  .post-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--line-color);
    overflow: hidden;
    box-shadow: 0 4px 16px -6px rgba(28, 43, 58, 0.05);
    transition: all .3s ease;
    display: flex;
    flex-direction: column;
  }

  .post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
  }

  .post-card-media {
    height: 180px;
    background: var(--alt-bg);
    background-size: cover;
    background-position: center;
    position: relative;
  }

  .post-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .post-card-body {
    padding: 22px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .post-card-tag {
    margin-bottom: 10px;
  }

  .post-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--title-color);
    line-height: 1.5;
    margin: 0 0 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .post-card-excerpt {
    font-size: .88rem;
    color: var(--sub-text);
    line-height: 1.7;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .post-card-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: .82rem;
    color: var(--muted-text);
  }

  /* ===== CTA Section ===== */
  .cta-section {
    padding: 72px 0;
  }

  .cta-banner {
    background: var(--primary);
    border-radius: 24px;
    padding: clamp(40px, 6vw, 72px);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
  }

  .cta-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    opacity: .08;
    pointer-events: none;
  }

  .cta-banner-content {
    position: relative;
    z-index: 1;
    color: #fff;
  }

  .cta-banner h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin: 0 0 8px;
    font-weight: 700;
  }

  .cta-banner p {
    margin: 0;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
  }

  .cta-banner-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
  }

  /* ===== Footer ===== */
  .footer {
    background: #fff;
    border-top: 1px solid var(--line-color);
    padding: 64px 0 28px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
  }

  .footer-brand p {
    color: var(--sub-text);
    font-size: .9rem;
    line-height: 1.75;
    margin: 14px 0;
    max-width: 320px;
  }

  .footer-social {
    display: flex;
    gap: 10px;
  }

  .footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--line-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--sub-text);
    font-size: .9rem;
    transition: all .2s ease;
  }

  .footer-social a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
  }

  .footer h4 {
    font-size: .95rem;
    font-weight: 700;
    color: var(--title-color);
    margin: 0 0 18px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .footer-links a {
    color: var(--sub-text);
    font-size: .88rem;
    position: relative;
    display: inline-block;
    transition: all .2s ease;
  }

  .footer-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width .25s ease;
  }

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

  .footer-links a:hover::after {
    width: 100%;
  }

  .footer-bottom {
    border-top: 1px solid var(--line-color);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
  }

  .footer-bottom p {
    margin: 0;
    color: var(--muted-text);
    font-size: .82rem;
  }

  /* ===== Responsive ===== */
  @media screen and (max-width: 1023px) {
    :root {
      --section-pad: 72px 0;
    }

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

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

  @media screen and (max-width: 767px) {
    .dock {
      width: calc(100% - 24px);
      margin: 0 12px;
      border-radius: 24px;
      padding: 12px 16px;
    }

    .dock-nav {
      position: fixed;
      top: 88px;
      left: 12px;
      right: 12px;
      background: #fff;
      border: 1px solid rgba(53, 101, 185, 0.1);
      border-radius: 20px;
      box-shadow: 0 24px 40px -12px rgba(28, 43, 58, 0.2);
      flex-direction: column;
      padding: 16px;
      gap: 4px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(-8px);
      transition: all .25s ease;
    }

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

    .dock-nav a {
      width: 100%;
      text-align: center;
      padding: 12px 16px;
      font-size: .95rem;
    }

    .dock-actions .btn-primary {
      padding: 8px 16px !important;
      font-size: .82rem !important;
    }

    .dock-burger {
      display: inline-flex;
    }

    .dock-search-btn {
      display: none;
    }

    .dock-search-box {
      display: none;
    }

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

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

    .article-nav-grid {
      grid-template-columns: 1fr;
    }

    .article-nav-card.next {
      text-align: left;
    }

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

  @media screen and (min-width: 768px) and (max-width: 1023px) {
    .dock-nav a {
      padding: 8px 12px;
      font-size: .85rem;
    }

    .dock-actions .btn-primary {
      padding: 8px 16px !important;
      font-size: .82rem !important;
    }
  }

  @media screen and (max-width: 519px) {
    :root {
      --section-pad: 52px 0;
    }

    .dock-actions .btn-primary {
      display: none;
    }

    .dock-logo span {
      font-size: 1.05rem;
    }

    .article-content {
      padding: 20px;
    }

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

/* roulang page: category2 */
:root {
  --primary: #3565B9;
  --primary-hover: #26509A;
  --accent: #2DA8A0;
  --star: #D99A2B;
  --bg: #F5F8FC;
  --card-bg: #FFFFFF;
  --alt-bg: #EAF1F8;
  --text: #1C2B3A;
  --text-body: #2E3F4E;
  --text-secondary: #5B6C7D;
  --text-muted: #8FA0AE;
  --border: rgba(53, 101, 185, 0.14);
  --shadow: 0 20px 40px -18px rgba(28, 43, 58, 0.12);
  --shadow-hover: 0 30px 50px -20px rgba(53, 101, 185, 0.16);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --container: 1180px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --section-pad: 96px 0;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.75;
  background: var(--bg);
  color: var(--text-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

button { font-family: inherit; }

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

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #EAF1F8; }
::-webkit-scrollbar-thumb { background: rgba(53, 101, 185, 0.35); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(53, 101, 185, 0.55); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; position: relative; }

/* ===== Dock 导航 ===== */
.dock {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--container);
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(53,101,185,0.12);
  border-radius: 999px;
  box-shadow: 0 12px 30px -12px rgba(28,43,58,0.16);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  z-index: 1000;
}

.dock-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 800;
  font-size: 1.05rem;
  white-space: nowrap;
}

.dock-logo:hover { color: var(--primary); }

.dock-nav { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; }

.dock-nav a {
  position: relative;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: .9rem;
  font-weight: 500;
  border-radius: 999px;
  white-space: nowrap;
  transition: all .25s ease;
}

.dock-nav a:hover { color: var(--primary); background: rgba(53,101,185,0.06); }

.dock-nav a.active { color: var(--primary); font-weight: 600; }
.dock-nav a.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.dock-actions { display: flex; align-items: center; gap: 10px; }

.dock-search-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(53,101,185,0.14);
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: .9rem;
  transition: all .25s ease;
}

.dock-search-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(53,101,185,0.04); }

.dock-search-box {
  display: none;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  background: #fff;
  width: 0;
  opacity: 0;
  overflow: hidden;
  transition: width .35s ease, opacity .3s ease;
}

.dock-search-box.open { display: flex; width: 200px; opacity: 1; }
.dock-search-box i { color: var(--text-muted); font-size: .85rem; }
.dock-search-box input { border: none; outline: none; width: 100%; font-size: .85rem; background: transparent; color: var(--text); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: .9rem; font-weight: 600; border-radius: var(--radius-pill); line-height: 1; transition: all .25s ease; cursor: pointer; }

.btn-primary { background: var(--primary); color: #fff !important; padding: 13px 30px; border: 2px solid transparent; }
.btn-primary:hover { background: #26509A; transform: translateY(-2px); box-shadow: 0 12px 24px -10px rgba(53,101,185,0.45); }

.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); padding: 11px 28px; }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

.btn-light { background: #fff; color: var(--primary); padding: 13px 30px; border: 2px solid transparent; }
.btn-light:hover { background: var(--bg); transform: translateY(-2px); }

.dock-burger { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; background: transparent; border: 1px solid var(--border); border-radius: 50%; cursor: pointer; font-size: 1rem; color: var(--text); }

/* ===== 页脚 ===== */
.footer { background: #fff; border-top: 1px solid var(--border); padding-top: 64px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand p { color: var(--text-secondary); font-size: .88rem; line-height: 1.7; margin: 14px 0 20px; max-width: 300px; }
.footer h4 { font-size: .95rem; color: var(--text); font-weight: 700; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--text-secondary); font-size: .88rem; position: relative; width: fit-content; }
.footer-links a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--primary); transition: width .25s ease; }
.footer-links a:hover { color: var(--primary); }
.footer-links a:hover::after { width: 100%; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; border: 1px solid var(--border); color: var(--text-secondary); font-size: .9rem; transition: all .25s ease; }
.footer-social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; text-align: center; }
.footer-bottom p { color: var(--text-muted); font-size: .82rem; margin: 0; }

/* ===== Banner ===== */
.tutorial-banner {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 180px 0 72px;
  text-align: center;
}

.tutorial-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(245,248,252,0.92) 0%, rgba(245,248,252,0.96) 100%);
}

.tutorial-banner .container { position: relative; z-index: 2; }

.breadcrumb { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: .85rem; margin-bottom: 18px; background: rgba(255,255,255,0.7); padding: 8px 18px; border-radius: 999px; border: 1px solid var(--border); }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: .75rem; color: var(--text-muted); }

.tutorial-banner h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.28;
  margin: 0 auto 16px;
  max-width: 760px;
}

.tutorial-banner h1 .tk { color: var(--primary); position: relative; display: inline-block; }
.tutorial-banner h1 .tk::after { content: ""; position: absolute; left: 0; bottom: 4px; width: 100%; height: 10px; background: rgba(45,168,160,0.22); border-radius: 4px; z-index: -1; }

.tutorial-banner .lead { color: var(--text-secondary); font-size: 1.05rem; max-width: 640px; margin: 0 auto 30px; line-height: 1.8; }

.banner-mini-tags { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.banner-mini-tags span { font-size: .85rem; color: var(--primary); background: rgba(255,255,255,0.8); border: 1px solid rgba(53,101,185,0.22); padding: 7px 16px; border-radius: 999px; font-weight: 500; }

/* ===== 教程主区 ===== */
.tutorial-main { padding: 80px 0 64px; }
.tutorial-grid { display: grid; grid-template-columns: 1fr 2.2fr; gap: 48px; align-items: start; }

/* 左侧锚点 */
.tutorial-toc {
  position: sticky;
  top: 120px;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px;
  box-shadow: var(--shadow);
}

.tutorial-toc h3 { font-size: 1rem; color: var(--text); font-weight: 700; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.tutorial-toc h3 i { color: var(--accent); }

.tutorial-toc ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }

.tutorial-toc ul li a { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px; color: var(--text-secondary); font-size: .9rem; transition: all .25s ease; border: 1px solid transparent; }
.tutorial-toc ul li a .num { width: 28px; height: 28px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; background: rgba(53,101,185,0.08); border-radius: 50%; font-size: .78rem; color: var(--primary); font-weight: 700; transition: all .25s ease; }
.tutorial-toc ul li a:hover { background: rgba(53,101,185,0.05); color: var(--primary); border-color: rgba(53,101,185,0.12); }
.tutorial-toc ul li a:hover .num { background: var(--primary); color: #fff; }
.tutorial-toc ul li a.active { background: rgba(53,101,185,0.08); color: var(--primary); border-color: rgba(53,101,185,0.16); font-weight: 600; }
.tutorial-toc ul li a.active .num { background: var(--primary); color: #fff; }

.toc-tip { margin-top: 20px; background: var(--alt-bg); border-radius: 12px; padding: 14px 16px; font-size: .83rem; color: var(--text-secondary); line-height: 1.6; display: flex; gap: 10px; }
.toc-tip i { color: var(--accent); margin-top: 3px; }

/* 右侧章节卡片 */
.tutorial-content { display: flex; flex-direction: column; gap: 32px; }

.tutorial-card {
  scroll-margin-top: 120px;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 36px;
  box-shadow: var(--shadow);
  transition: box-shadow .25s ease, transform .25s ease;
}

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

.tutorial-card .card-header { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 20px; }

.tutorial-card .card-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(53,101,185,0.1);
  border-radius: 12px;
  color: var(--primary);
  font-size: 1.2rem;
}

.tutorial-card .card-title-box h3 { font-size: 1.2rem; font-weight: 700; color: var(--text); line-height: 1.4; margin-bottom: 4px; }
.tutorial-card .card-title-box p { color: var(--text-muted); font-size: .85rem; margin: 0; }

.tutorial-card .card-body { padding-left: 66px; }

.step-list { list-style: none; display: flex; flex-direction: column; gap: 0; margin: 0; }

.step-list li { position: relative; padding: 0 0 24px 28px; border-left: 2px solid rgba(53,101,185,0.15); margin-left: 10px; }

.step-list li:last-child { border-left-color: transparent; padding-bottom: 0; }

.step-list li::before { content: ""; position: absolute; left: -7px; top: 2px; width: 12px; height: 12px; background: var(--primary); border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 2px rgba(53,101,185,0.2); }

.step-list li .step-label { font-weight: 700; color: var(--text); font-size: .93rem; margin-bottom: 4px; }
.step-list li p { color: var(--text-secondary); font-size: .9rem; line-height: 1.7; margin: 0; }

.step-list li .tip { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font-size: .8rem; color: var(--accent); background: rgba(45,168,160,0.08); padding: 4px 12px; border-radius: 999px; }

.card-img { border-radius: 12px; overflow: hidden; margin: 18px 0 10px; border: 1px solid var(--border); }
.card-img img { width: 100%; object-fit: cover; aspect-ratio: 16 / 7; }
.card-img figcaption { text-align: center; font-size: .8rem; color: var(--text-muted); padding: 8px; background: var(--bg); }

.note-block { display: flex; gap: 12px; background: rgba(45,168,160,0.06); border-left: 3px solid var(--accent); border-radius: 0 12px 12px 0; padding: 16px 20px; margin-top: 18px; }
.note-block i { color: var(--accent); font-size: 1rem; margin-top: 3px; }
.note-block p { font-size: .88rem; color: var(--text-secondary); line-height: 1.7; margin: 0; }

/* ===== 登录方式对比 ===== */
.login-methods { background: #fff; padding: var(--section-pad); border-top: 1px solid var(--border); }

.section-head { text-align: center; margin-bottom: 48px; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: .06em;
  margin-bottom: 12px;
}

.section-label::before { content: ""; width: 22px; height: 2px; background: var(--primary); border-radius: 2px; }
.section-label::after { content: ""; width: 22px; height: 2px; background: var(--primary); border-radius: 2px; }

.section-head h2 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); font-weight: 800; color: var(--text); line-height: 1.3; margin-bottom: 12px; }
.section-head p { color: var(--text-secondary); max-width: 620px; margin: 0 auto; font-size: .95rem; }

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

.method-card { background: var(--bg); border-radius: var(--radius); border: 1px solid var(--border); padding: 32px 28px; text-align: center; transition: all .3s ease; }

.method-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); background: #fff; }

.method-card .method-icon { width: 64px; height: 64px; margin: 0 auto 18px; display: inline-flex; align-items: center; justify-content: center; background: rgba(53,101,185,0.1); border-radius: 18px; color: var(--primary); font-size: 1.5rem; }

.method-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.method-card p { font-size: .88rem; color: var(--text-secondary); margin-bottom: 14px; line-height: 1.65; }

.method-tag { display: inline-block; font-size: .78rem; color: var(--primary); border: 1px solid rgba(53,101,185,0.2); padding: 4px 14px; border-radius: 999px; background: rgba(255,255,255,0.7); }

/* ===== FAQ ===== */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }

.faq-item { background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); transition: box-shadow .25s ease; overflow: hidden; }
.faq-item:hover { box-shadow: var(--shadow-hover); }

.faq-item summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 28px; cursor: pointer; font-weight: 600; color: var(--text); font-size: .98rem; }

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

.faq-item summary .faq-icon { width: 28px; height: 28px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(53,101,185,0.08); color: var(--primary); font-size: .85rem; transition: transform .3s ease, background .3s ease, color .3s ease; }

.faq-item[open] summary .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }

.faq-answer { padding: 0 28px 24px 28px; color: var(--text-secondary); font-size: .92rem; line-height: 1.75; }

.faq-answer p { margin: 0; }

/* ===== CTA ===== */
.cta-section { padding: 24px 0 80px; }

.cta-card {
  background: var(--primary);
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: .08; }

.cta-card .cta-inner { position: relative; z-index: 2; }

.cta-card h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: #fff; margin-bottom: 12px; }

.cta-card p { color: rgba(255,255,255,0.85); font-size: .98rem; margin-bottom: 28px; }

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

.cta-buttons .btn { min-width: 140px; }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  :root { --section-pad: 72px 0; }

  .dock { padding: 10px 16px; }
  .dock-nav { display: none; }
  .dock-burger { display: inline-flex; }

  .dock-nav.open { display: flex; position: absolute; top: calc(100% + 8px); left: 12px; right: 12px; flex-direction: column; background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 14px; box-shadow: var(--shadow-hover); align-items: stretch; text-align: center; }
  .dock-nav.open a { padding: 12px 20px; }
  .dock-nav.open a.active::after { display: none; }

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

  .tutorial-grid { grid-template-columns: 1fr; }
  .tutorial-toc { position: relative; top: auto; margin-bottom: 24px; }
  .tutorial-toc ul { flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .tutorial-toc ul li a { padding: 10px 14px; }
  .toc-tip { display: none; }

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

@media (max-width: 639px) {
  :root { --section-pad: 52px 0; }
  .container { padding: 0 16px; }

  .dock { top: 10px; width: calc(100% - 24px); border-radius: 22px; padding: 8px 12px; }
  .dock-actions .btn-primary { display: none; }
  .dock-search-box.open { position: absolute; right: 12px; top: 60px; width: calc(100% - 40px); }

  .tutorial-banner { padding: 150px 0 48px; }
  .breadcrumb { font-size: .78rem; }
  .tutorial-banner .lead { font-size: .92rem; }

  .tutorial-card { padding: 24px 20px; }
  .tutorial-card .card-header { flex-direction: column; gap: 12px; }
  .tutorial-card .card-body { padding-left: 0; }
  .step-list li { padding-left: 22px; margin-left: 6px; }
  .step-list li::before { width: 10px; height: 10px; left: -6px; }

  .methods-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-card { padding: 44px 24px; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons .btn { width: 100%; }
  .section-head h2 { font-size: 1.4rem; }
  .card-img img { aspect-ratio: 16 / 10; }
}

/* roulang page: category1 */
:root{
      --primary:#3565B9;
      --primary-hover:#26509A;
      --accent:#2DA8A0;
      --star:#D99A2B;
      --bg:#F5F8FC;
      --card:#FFFFFF;
      --alt-bg:#EAF1F8;
      --heading:#1C2B3A;
      --text:#2E3F4E;
      --muted:#5B6C7D;
      --faint:#8FA0AE;
      --border:rgba(53,101,185,0.14);
      --shadow:0 20px 40px -18px rgba(28,43,58,0.12);
      --shadow-hover:0 30px 50px -20px rgba(53,101,185,0.16);
      --radius:16px;
      --radius-btn:999px;
      --radius-input:10px;
      --container:1180px;
      --section-pad:96px 0;
    }
    *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
    body{
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
      background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;
      -webkit-font-smoothing:antialiased;
    }
    img{max-width:100%;display:block}
    a{color:var(--primary);text-decoration:none;transition:color .2s ease}
    a:hover{color:var(--primary-hover)}
    button,input{font-family:inherit;font-size:inherit;line-height:inherit}
    ::selection{background:var(--primary);color:#fff}
    ::-webkit-scrollbar{width:8px;height:8px}
    ::-webkit-scrollbar-track{background:var(--alt-bg)}
    ::-webkit-scrollbar-thumb{background:rgba(53,101,185,.35);border-radius:8px}
    :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

    .grid-container{max-width:var(--container);padding-left:24px;padding-right:24px}
    .section{padding:var(--section-pad)}
    .section-head{max-width:680px;margin-bottom:52px}
    .section-head.center{margin-left:auto;margin-right:auto;text-align:center}
    .section-label{
      display:inline-flex;align-items:center;gap:10px;
      font-size:.85rem;font-weight:600;letter-spacing:2px;
      color:var(--primary);text-transform:uppercase;margin-bottom:16px;
    }
    .section-label::before{content:'';width:28px;height:2px;background:var(--primary);display:inline-block;border-radius:2px}
    .section-head.center .section-label::after{content:'';width:28px;height:2px;background:var(--primary);display:inline-block;border-radius:2px}
    .section h2{font-size:clamp(1.6rem,3.4vw,2.2rem);color:var(--heading);font-weight:800;line-height:1.35;margin-bottom:16px}
    .section-head p{color:var(--muted);font-size:1rem;max-width:560px}
    .section-head.center p{margin-left:auto;margin-right:auto}

    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 26px;border-radius:var(--radius-btn);
      font-size:.95rem;font-weight:600;cursor:pointer;line-height:1.2;
      transition:all .25s ease;border:1px solid transparent;white-space:nowrap;
    }
    .btn-primary{background:var(--primary);color:#fff}
    .btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(53,101,185,.55)}
    .btn-ghost{background:transparent;color:var(--primary);border-color:rgba(53,101,185,.35)}
    .btn-ghost:hover{border-color:var(--primary);background:rgba(53,101,185,.05);color:var(--primary)}
    .btn-lg{padding:16px 34px;font-size:1rem}
    .btn-white{background:#fff;color:var(--primary)}
    .btn-white:hover{background:#F0F4FA;color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 12px 24px -12px rgba(255,255,255,.4)}
    .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
    .btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:7px 16px;border-radius:var(--radius-btn);
      border:1px solid rgba(53,101,185,.35);
      font-size:.8rem;font-weight:600;color:var(--primary);background:transparent;
    }

    .dock-mobile-menu{display:none}
    .dock{
      position:fixed;top:16px;left:50%;transform:translateX(-50%);
      width:min(1180px,calc(100% - 24px));z-index:100;
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
      border:1px solid var(--border);border-radius:999px;
      box-shadow:0 12px 30px -12px rgba(28,43,58,.16);
      display:flex;align-items:center;justify-content:space-between;
      padding:10px 20px;
    }
    .dock-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--heading);flex-shrink:0}
    .dock-logo span{letter-spacing:.5px}
    .dock-nav{display:flex;align-items:center;gap:8px}
    .dock-nav a{color:var(--muted);font-weight:600;font-size:.9rem;padding:8px 14px;border-radius:999px;transition:background .2s ease,color .2s ease;position:relative}
    .dock-nav a:hover{color:var(--primary);background:rgba(53,101,185,.05)}
    .dock-nav a.active{color:var(--primary);background:rgba(53,101,185,.06)}
    .dock-nav a.active::after{content:'';position:absolute;left:50%;bottom:4px;transform:translateX(-50%);width:6px;height:6px;border-radius:50%;background:var(--primary)}
    .dock-actions{display:flex;align-items:center;gap:10px}
    .dock-actions .btn{flex-shrink:0}
    .dock-search-btn,.dock-burger{
      background:transparent;border:none;color:var(--muted);
      width:38px;height:38px;border-radius:50%;cursor:pointer;
      display:flex;align-items:center;justify-content:center;
      transition:background .2s ease,color .2s ease;font-size:1rem;
    }
    .dock-search-btn:hover,.dock-burger:hover{background:rgba(53,101,185,.07);color:var(--primary)}
    .dock-search-box{display:flex;align-items:center;max-width:0;overflow:hidden;transition:max-width .35s ease;background:var(--bg);border-radius:999px;border:1px solid transparent}
    .dock-search-box.open{max-width:200px;padding:4px 14px;border-color:var(--border)}
    .dock-search-box i{color:var(--faint);font-size:.85rem;margin-right:8px}
    .dock-search-box input{border:none;background:transparent;outline:none;width:100%;max-width:130px;font-size:.88rem;color:var(--text)}
    .dock-burger{display:none}

    .hero{
      position:relative;
      padding:clamp(150px,20vh,180px) 0 clamp(70px,10vh,110px);
      background:linear-gradient(180deg,rgba(245,248,252,.94) 0%,#F5F8FC 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      overflow:hidden;
    }
    .hero-inner{display:grid;grid-template-columns:1.35fr .85fr;gap:56px;align-items:center}
    .hero-copy .hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
    .hero-copy h1{font-size:clamp(2.2rem,5.2vw,3.4rem);line-height:1.25;color:var(--heading);font-weight:800;margin-bottom:20px}
    .hero-copy h1 .hero-sub-title{color:var(--primary);display:block;font-size:.56em;margin-top:10px;font-weight:700;letter-spacing:2px}
    .hero-desc{color:var(--muted);font-size:1.05rem;max-width:540px;margin-bottom:32px;line-height:1.8}
    .hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
    .hero-visual{position:relative;display:flex;justify-content:center}
    .hero-img{width:100%;max-width:440px;border-radius:20px;box-shadow:var(--shadow);position:relative;z-index:2;border:1px solid var(--border)}
    .hero-visual-glow{position:absolute;inset:auto 0 -20px;height:100px;background:radial-gradient(ellipse at center,rgba(53,101,185,.18),transparent 70%);z-index:1}

    .trust-bar{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:18px 0}
    .trust-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:32px}
    .trust-inner span{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:.9rem;font-weight:600}
    .trust-inner i{color:var(--accent);font-size:1.1rem}

    .value-section{background:var(--bg)}
    .value-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
    .value-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow);transition:all .25s ease}
    .value-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .value-card-large{display:flex;flex-direction:column;justify-content:center}
    .value-side{display:flex;flex-direction:column;gap:24px}
    .value-icon{width:48px;height:48px;border-radius:12px;background:rgba(53,101,185,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:22px}
    .value-card h3{color:var(--heading);font-size:1.2rem;font-weight:700;margin-bottom:12px}
    .value-card p{color:var(--muted);font-size:.96rem;line-height:1.7}

    .sys-section{background:#fff}
    .sys-compat{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;justify-content:center}
    .sys-compat span{display:inline-flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border);padding:8px 20px;border-radius:999px;font-size:.88rem;color:var(--muted);font-weight:600}
    .sys-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);position:relative;transition:transform .25s ease,box-shadow .25s ease}
    .sys-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .sys-card h3{display:flex;align-items:center;gap:10px;color:var(--heading);font-size:1.2rem;font-weight:700;margin-bottom:20px}
    .sys-card h3 i{color:var(--primary)}
    .sys-tag{position:absolute;top:22px;right:22px;background:rgba(45,168,160,.12);color:var(--accent);padding:3px 12px;border-radius:999px;font-size:.76rem;font-weight:700}
    .sys-card ul{list-style:none;margin:0}
    .sys-card li{display:flex;align-items:flex-start;gap:10px;padding:7px 0;color:var(--muted);font-size:.92rem}
    .sys-card li::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--accent);margin-top:10px;flex-shrink:0}

    .steps-section{background:var(--bg)}
    .steps-grid .cell{margin-bottom:24px}
    .step-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px 28px;box-shadow:var(--shadow);transition:all .25s ease;height:100%}
    .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .step-num{font-size:2rem;font-weight:800;color:rgba(53,101,185,.18);margin-bottom:18px;line-height:1}
    .step-card h3{color:var(--heading);font-size:1.1rem;font-weight:700;margin-bottom:10px}
    .step-card p{color:var(--muted);font-size:.9rem;line-height:1.7}

    .media-section{background:#fff}
    .media-grid .cell{margin-bottom:24px}
    .media-card{
      display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
      overflow:hidden;box-shadow:var(--shadow);transition:all .25s ease;height:100%;
    }
    .media-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
    .media-card img{width:100%;height:170px;object-fit:cover;border-bottom:1px solid var(--border)}
    .media-body{padding:24px}
    .media-body h3{color:var(--heading);font-size:1.05rem;font-weight:700;margin-bottom:8px}
    .media-body p{color:var(--muted);font-size:.88rem;line-height:1.65;margin-bottom:16px}
    .media-link{color:var(--primary);font-weight:600;font-size:.88rem;display:inline-flex;align-items:center;gap:6px}
    .media-link i{transition:transform .2s ease}
    .media-card:hover .media-link i{transform:translateX(4px)}

    .login-tip-section{background:var(--bg)}
    .login-tip-card{
      background:var(--card);border:1px solid var(--border);border-radius:24px;
      box-shadow:var(--shadow);padding:clamp(28px,4vw,56px);
      display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;
    }
    .login-tip-text h2{font-size:clamp(1.4rem,3vw,1.9rem);color:var(--heading);font-weight:800;line-height:1.4;margin-bottom:16px}
    .login-tip-text p{color:var(--muted);margin-bottom:24px;max-width:520px}
    .login-tip-list{display:flex;flex-direction:column;gap:16px}
    .login-tip-list div{display:flex;align-items:center;gap:14px;background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:14px 18px;color:var(--text);font-weight:600;font-size:.95rem}
    .login-tip-list span{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;flex-shrink:0}

    .faq-section{background:#fff}
    .faq-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:16px;transition:box-shadow .25s ease}
    .faq-card.open{box-shadow:var(--shadow-hover)}
    .faq-q{width:100%;background:transparent;border:none;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;text-align:left;color:var(--heading);font-size:1rem;font-weight:700}
    .faq-q .faq-icon{width:28px;height:28px;border-radius:50%;background:rgba(53,101,185,.08);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.9rem;transition:transform .3s ease,background .3s ease}
    .faq-card.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
    .faq-a p{padding:0 26px 22px;color:var(--muted);font-size:.92rem;line-height:1.75}
    .faq-card.open .faq-a{max-height:400px}

    .cta-section{padding:20px 0 96px;background:var(--bg)}
    .cta-banner{
      position:relative;border-radius:24px;padding:clamp(36px,6vw,72px);
      background:var(--primary) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      background-blend-mode:overlay;color:#fff;text-align:center;overflow:hidden;
      box-shadow:0 30px 60px -24px rgba(53,101,185,.45);
    }
    .cta-banner::before{content:'';position:absolute;inset:0;background:rgba(53,101,185,.86);border-radius:24px;z-index:1}
    .cta-banner h2,.cta-banner p,.cta-actions{position:relative;z-index:2}
    .cta-banner h2{font-size:clamp(1.5rem,3.4vw,2.2rem);font-weight:800;margin-bottom:12px;color:#fff}
    .cta-banner p{color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 28px;font-size:1rem}
    .cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}

    .footer{background:#fff;border-top:1px solid var(--border);padding:64px 0 28px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
    .footer-brand p{color:var(--muted);font-size:.9rem;line-height:1.7;margin:14px 0 18px;max-width:320px}
    .footer-social{display:flex;gap:10px}
    .footer-social a{width:36px;height:36px;border-radius:50%;background:var(--bg);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem;transition:all .2s ease}
    .footer-social a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
    .footer h4{color:var(--heading);font-size:.95rem;font-weight:700;margin-bottom:18px}
    .footer-links{display:flex;flex-direction:column;gap:10px}
    .footer-links a{color:var(--muted);font-size:.9rem;width:max-content;position:relative;transition:color .2s ease}
    .footer-links a::after{content:'';position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--primary);transition:width .25s ease}
    .footer-links a:hover{color:var(--primary)}
    .footer-links a:hover::after{width:100%}
    .footer-bottom{border-top:1px solid var(--border);padding-top:22px;text-align:center;color:var(--faint);font-size:.85rem}

    @media(max-width:1023px){
      :root{--section-pad:72px 0}
      .dock-nav,.dock-actions .btn-primary{display:none}
      .dock-burger{display:flex}
      .dock{width:calc(100% - 24px);padding:10px 16px}
      .hero-inner{grid-template-columns:1fr;gap:40px;text-align:center}
      .hero-copy .hero-badges{justify-content:center}
      .hero-desc{margin-left:auto;margin-right:auto}
      .hero-actions{justify-content:center}
      .hero-img{max-width:480px}
      .value-grid{grid-template-columns:1fr}
      .login-tip-card{grid-template-columns:1fr;gap:32px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
    }
    @media(max-width:639px){
      :root{--section-pad:52px 0}
      .section-head{margin-bottom:36px}
      .dock-search-box.open{position:absolute;top:56px;right:16px;max-width:240px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);padding:8px 14px}
      .dock-search-box input{max-width:170px}
      .dock-mobile-menu.open{display:block;position:fixed;top:80px;left:12px;right:12px;z-index:99;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:14px}
      .dock-mobile-menu.open a{display:block;padding:12px 16px;border-radius:10px;color:var(--text);font-weight:600;transition:background .2s ease,color .2s ease}
      .dock-mobile-menu.open a:hover{background:rgba(53,101,185,.05);color:var(--primary)}
      .dock-mobile-menu.open a.active{background:rgba(53,101,185,.07);color:var(--primary)}
      .hero{padding:130px 0 60px}
      .hero-copy h1{font-size:2rem}
      .hero-actions .btn{width:100%}
      .trust-inner{gap:14px;flex-direction:column}
      .sys-card{padding:24px}
      .step-card{padding:26px 22px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .cta-banner{padding:40px 22px}
      .cta-actions .btn{width:100%}
    }

/* roulang page: category3 */
:root {
  --brand: #3565B9;
  --brand-hover: #26509A;
  --accent: #2DA8A0;
  --star: #D99A2B;
  --bg: #F5F8FC;
  --card: #FFFFFF;
  --alt-bg: #EAF1F8;
  --title-color: #1C2B3A;
  --body-color: #2E3F4E;
  --sub-color: #5B6C7D;
  --muted: #8FA0AE;
  --line: rgba(53, 101, 185, 0.14);
  --shadow: 0 20px 40px -18px rgba(28, 43, 58, 0.12);
  --shadow-hover: 0 30px 50px -20px rgba(53, 101, 185, 0.16);
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-input: 10px;
  --radius-dock: 999px;
  --container: 1180px;
  --pad-section: 96px 0;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--body-color);
  line-height:1.75;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand-hover)}
ul{list-style:none}
button{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--alt-bg)}
::-webkit-scrollbar-thumb{background:rgba(53,101,185,.5);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:var(--brand)}

/* Dock */
.dock-header{position:relative;z-index:100;padding:16px 0 0}
.dock{
  max-width:var(--container);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(53,101,185,.12);
  border-radius:var(--radius-dock);
  box-shadow:0 12px 30px -12px rgba(28,43,58,.16);
  padding:12px 22px;
  transition:box-shadow .3s ease;
}
.dock-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;color:var(--title-color);white-space:nowrap}
.dock-logo:hover{color:var(--brand)}
.dock-logo span{letter-spacing:.2px}
.dock-nav{display:flex;align-items:center;gap:6px}
.dock-nav a{
  padding:8px 16px;
  border-radius:999px;
  color:var(--sub-color);
  font-weight:600;
  font-size:.92rem;
  transition:background .25s ease,color .25s ease;
}
.dock-nav a:hover{background:rgba(53,101,185,.08);color:var(--brand)}
.dock-nav a.active{color:var(--brand);background:rgba(53,101,185,.08);position:relative}
.dock-nav a.active::after{content:"";position:absolute;bottom:4px;left:50%;transform:translateX(-50%);width:5px;height:5px;border-radius:50%;background:var(--brand)}
.dock-actions{display:flex;align-items:center;gap:12px;position:relative}
.dock-search-btn{
  width:38px;height:38px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  font-size:.9rem;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.dock-search-btn:hover{border-color:var(--brand);box-shadow:0 0 0 3px rgba(53,101,185,.1)}
.dock-search-box{
  display:none;
  align-items:center;
  gap:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  padding:0 14px;
  height:38px;
  width:200px;
  animation:searchIn .3s ease;
}
.dock-search-box i{color:var(--muted);font-size:.8rem}
.dock-search-box input{border:none;outline:none;background:transparent;font-size:.88rem;width:100%;color:var(--body-color)}
@keyframes searchIn{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;font-size:.95rem;
  border-radius:var(--radius-btn);
  border:none;cursor:pointer;
  transition:all .25s ease;
  text-decoration:none;
  font-family:inherit;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -8px rgba(53,101,185,.5)}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:0 14px 26px -10px rgba(53,101,185,.55)}
.btn-outline{background:transparent;border:1.5px solid var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-white-outline{background:transparent;border:1.5px solid rgba(255,255,255,.8);color:#fff}
.btn-white-outline:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.dock-burger{display:none;background:none;border:none;font-size:1.2rem;color:var(--title-color);cursor:pointer;width:40px;height:40px;border-radius:12px}
.dock-burger:hover{background:rgba(53,101,185,.08)}
.dock-mobile{
  display:none;
  max-width:var(--container);
  margin:8px auto 0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
  padding:12px;
  flex-direction:column;
  gap:4px;
}
.dock-mobile a{padding:12px 16px;border-radius:12px;color:var(--body-color);font-weight:600;font-size:.95rem}
.dock-mobile a:hover{background:var(--alt-bg);color:var(--brand)}
.dock-mobile a.active{background:rgba(53,101,185,.1);color:var(--brand)}

/* Hero */
.feat-hero{
  position:relative;
  background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
  padding:clamp(80px,12vh,140px) 0;
}
.feat-hero::before{content:"";position:absolute;inset:0;background:rgba(245,248,252,.92)}
.feat-hero .container{position:relative;z-index:2}
.hero-breadcrumb{display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--sub-color);margin-bottom:24px}
.hero-breadcrumb a{color:var(--brand);font-weight:500}
.hero-breadcrumb span{color:var(--muted)}
.hero-breadcrumb .sep{color:var(--line);font-weight:700}
.feat-hero h1{
  font-size:clamp(2.2rem,5.2vw,3.4rem);
  line-height:1.25;
  font-weight:800;
  color:var(--title-color);
  margin-bottom:20px;
  max-width:820px;
}
.feat-hero h1 .highlight{color:var(--brand);position:relative;white-space:nowrap}
.feat-hero h1 .highlight::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:6px;background:rgba(45,168,160,.16);border-radius:3px;z-index:-1}
.hero-lead{
  font-size:1.12rem;
  color:var(--sub-color);
  max-width:680px;
  line-height:1.9;
  margin-bottom:32px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid rgba(53,101,185,.35);
  color:var(--brand);
  font-size:.85rem;
  font-weight:600;
  background:rgba(255,255,255,.65);
}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.hero-cta .btn{height:52px;padding:0 32px;font-size:1rem}
.hero-note{display:flex;align-items:center;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-note-avatar{display:flex;align-items:center}
.hero-note-avatar span{width:34px;height:34px;border-radius:50%;background:rgba(53,101,185,.14);border:2px solid #fff;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;color:var(--brand);margin-left:-8px}
.hero-note-avatar span:first-child{margin-left:0}
.hero-note p{font-size:.85rem;color:var(--muted)}

/* Section general */
.section{padding:var(--pad-section)}
.section-alt{background:var(--alt-bg)}
.section-white{background:#fff}
.section-label{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.85rem;font-weight:600;color:var(--brand);
  letter-spacing:.6px;
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-label::before{content:"";width:24px;height:2px;background:var(--brand);border-radius:2px}
.section-title{font-size:clamp(1.6rem,3.4vw,2.2rem);font-weight:800;color:var(--title-color);line-height:1.3;margin-bottom:14px}
.section-sub{font-size:1rem;color:var(--sub-color);max-width:660px;line-height:1.8}

/* Feature Overview */
.feature-overview-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:48px}
.feature-big{
  background:var(--card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:36px;
  border-top:3px solid var(--brand);
  transition:transform .25s ease,box-shadow .25s ease;
}
.feature-big:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-big-icon{width:56px;height:56px;border-radius:16px;background:rgba(53,101,185,.1);display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:var(--brand);margin-bottom:22px}
.feature-big h3{font-size:1.35rem;font-weight:700;color:var(--title-color);margin-bottom:12px}
.feature-big p{color:var(--sub-color);line-height:1.85;font-size:.97rem}
.feature-big .feature-list{margin-top:18px}
.feature-big .feature-list li{display:flex;gap:10px;align-items:flex-start;padding:7px 0;color:var(--body-color);font-size:.93rem}
.feature-big .feature-list li i{color:var(--accent);font-size:.85rem;margin-top:5px}
.feature-stack{display:flex;flex-direction:column;gap:24px}
.feature-small{
  background:var(--card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:28px 30px;
  flex:1;
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;
  gap:18px;
  align-items:flex-start;
}
.feature-small:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-small-icon{width:46px;height:46px;border-radius:14px;background:rgba(45,168,160,.12);display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:var(--accent);flex-shrink:0}
.feature-small h3{font-size:1.05rem;font-weight:700;color:var(--title-color);margin-bottom:6px}
.feature-small p{font-size:.9rem;color:var(--sub-color);line-height:1.7;margin:0}
.feature-wide-row{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.feature-wide{background:var(--card);border-radius:var(--radius-card);box-shadow:var(--shadow);padding:30px 34px;display:flex;gap:20px;align-items:flex-start;transition:transform .25s ease,box-shadow .25s ease}
.feature-wide:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-wide-icon{width:52px;height:52px;border-radius:14px;background:rgba(217,154,43,.14);display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:var(--star);flex-shrink:0}
.feature-wide h3{font-size:1.1rem;font-weight:700;color:var(--title-color);margin-bottom:8px}
.feature-wide p{font-size:.92rem;color:var(--sub-color);line-height:1.75;margin:0}

/* Scenes */
.scene-grid{display:flex;flex-direction:column;gap:60px;margin-top:52px}
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.scene-row.reverse .scene-media{order:2}
.scene-media{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.scene-media img{width:100%;height:340px;object-fit:cover;transition:transform .5s ease}
.scene-media:hover img{transform:scale(1.03)}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(28,43,58,.15));pointer-events:none}
.scene-media .tag{
  position:absolute;top:18px;left:18px;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(6px);
  padding:6px 14px;
  border-radius:999px;
  font-size:.78rem;
  font-weight:700;
  color:var(--brand);
  z-index:2;
}
.scene-info h3{font-size:1.35rem;font-weight:700;color:var(--title-color);margin-bottom:12px}
.scene-info p{color:var(--sub-color);line-height:1.85;margin-bottom:14px}
.scene-info ul li{display:flex;gap:10px;padding:5px 0;font-size:.95rem;color:var(--body-color)}
.scene-info ul li i{color:var(--accent);font-size:.85rem;margin-top:6px}

/* Sys req */
.sys-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:44px}
.sys-card{background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow);padding:34px;position:relative;border:1px solid rgba(53,101,185,.08)}
.sys-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.sys-head h3{font-size:1.2rem;font-weight:700;color:var(--title-color)}
.sys-tag{font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:999px;background:rgba(45,168,160,.12);color:var(--accent)}
.sys-tag.star{background:rgba(217,154,43,.14);color:var(--star)}
.sys-list li{display:flex;gap:12px;padding:9px 0;border-bottom:1px solid rgba(53,101,185,.06);font-size:.93rem;color:var(--body-color)}
.sys-list li:last-child{border-bottom:none}
.sys-list li i{color:var(--accent);font-size:.85rem;margin-top:6px}
.sys-icon-row{display:flex;gap:18px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.sys-icon-row span{font-size:1.5rem;color:var(--muted);transition:color .25s ease,transform .25s ease}
.sys-icon-row span:hover{color:var(--brand);transform:translateY(-3px)}

/* FAQ */
.faq-wrap{max-width:860px;margin:44px auto 0}
.faq-item{
  background:#fff;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  margin-bottom:16px;
  overflow:hidden;
  box-shadow:0 8px 24px -16px rgba(28,43,58,.1);
  transition:box-shadow .3s ease;
}
.faq-item.active{box-shadow:var(--shadow)}
.faq-q{
  width:100%;
  background:none;
  border:none;
  padding:22px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  cursor:pointer;
  font-size:1.02rem;
  font-weight:700;
  color:var(--title-color);
  text-align:left;
}
.faq-q .faq-icon{
  width:26px;height:26px;
  border-radius:50%;
  flex-shrink:0;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:.85rem;
  color:var(--brand);
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.active .faq-q .faq-icon{transform:rotate(45deg);background:var(--brand);border-color:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 28px}
.faq-a-inner{padding-bottom:24px;color:var(--sub-color);font-size:.95rem;line-height:1.85;border-top:1px solid var(--line);padding-top:0}

/* CTA banner */
.cta-banner{
  background:var(--brand);
  border-radius:24px;
  padding:64px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  position:relative;
  overflow:hidden;
  box-shadow:0 30px 60px -30px rgba(53,101,185,.6);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.1;
}
.cta-banner > *{position:relative;z-index:2}
.cta-banner h2{color:#fff;font-size:clamp(1.5rem,3vw,2rem);font-weight:800;line-height:1.35;margin-bottom:8px}
.cta-banner p{color:rgba(255,255,255,.85);font-size:1rem}
.cta-banner .btn{height:52px;padding:0 32px;font-size:1rem}

/* Footer */
.footer{margin-top:0;background:#fff;border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand p{font-size:.9rem;color:var(--sub-color);margin:14px 0 18px;line-height:1.8}
.footer h4{font-size:.95rem;font-weight:700;color:var(--title-color);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:.9rem;color:var(--sub-color);transition:color .25s ease,padding-left .25s ease;position:relative}
.footer-links a::before{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--brand);transition:width .25s ease}
.footer-links a:hover{color:var(--brand);padding-left:4px}
.footer-links a:hover::before{width:12px}
.footer-social{display:flex;gap:12px}
.footer-social a{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--sub-color);font-size:.95rem;transition:all .25s ease}
.footer-social a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-3px)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;text-align:center;font-size:.84rem;color:var(--muted)}
.footer-bottom p{margin:0}

/* Responsive */
@media screen and (max-width:1023px){
  .dock{padding:10px 16px}
  .dock-nav{display:none}
  .dock-search-box{position:absolute;top:52px;right:0;width:220px}
  .dock-burger{display:flex;align-items:center;justify-content:center;border-radius:50%}
  .dock-actions .btn-primary{display:none}
  .dock-mobile.show{display:flex}
  .feature-overview-grid{grid-template-columns:1fr}
  .feature-stack{flex-direction:row}
  .feature-small{flex:1}
  .scene-row{grid-template-columns:1fr;gap:32px}
  .scene-row.reverse .scene-media{order:0}
  .scene-media img{height:300px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-banner{flex-direction:column;text-align:center;padding:48px 32px}
}
@media screen and (max-width:639px){
  :root{--pad-section:52px 0}
  .container{padding:0 16px}
  .dock{border-radius:24px;padding:10px 14px}
  .dock-logo span{font-size:1rem}
  .feature-stack{flex-direction:column}
  .feature-wide-row{grid-template-columns:1fr}
  .sys-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-banner{padding:40px 24px}
  .hero-badges{gap:8px}
  .badge{font-size:.78rem;padding:5px 12px}
  .faq-q{padding:18px 20px;font-size:.95rem}
  .feature-big{padding:28px 22px}
  .hero-cta .btn{width:100%;height:48px}
}