/* roulang page: index */
:root{
  --color-primary:#1D5FBF;
  --color-primary-dark:#164f9f;
  --color-primary-light:rgba(29,95,191,.09);
  --color-primary-mist:#eaf1fb;
  --color-accent:#fb7a32;
  --color-accent-dark:#ed631b;
  --color-accent-light:rgba(251,122,50,.12);
  --color-bg:#F6F8FB;
  --color-surface:#FFFFFF;
  --color-text:#1E2A3A;
  --color-text-secondary:#54657A;
  --color-border:#E2E8F0;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-full:999px;
  --shadow-sm:0 4px 20px rgba(30,42,58,.06);
  --shadow-md:0 10px 30px rgba(30,42,58,.10);
  --shadow-nav:0 6px 24px rgba(29,95,191,.08);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --container:1140px;
  --section-space:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--color-bg);color:var(--color-text);font-size:1rem;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.section{padding:var(--section-space) 0}
.section-header{max-width:720px;margin-bottom:52px}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--color-primary-light);color:var(--color-primary);font-size:.75rem;font-weight:600;padding:6px 16px;border-radius:var(--radius-full);letter-spacing:.02em;margin-bottom:16px}
.section-header h2{font-size:clamp(1.375rem,2.4vw,1.875rem);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.section-header p{color:var(--color-text-secondary);margin-top:12px;font-size:1rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 30px;border-radius:var(--radius-full);font-weight:600;font-size:.9375rem;line-height:1.5;transition:all .22s ease;white-space:nowrap}
.btn i{font-size:.95em}
.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 6px 16px rgba(29,95,191,.25)}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(29,95,191,.3)}
.btn-secondary{background:transparent;color:var(--color-primary);outline:1.5px solid var(--color-primary);outline-offset:-1.5px}
.btn-secondary:hover{background:var(--color-primary-light);transform:translateY(-2px)}
.btn-accent{background:var(--color-accent);color:#fff;box-shadow:0 8px 18px rgba(251,122,50,.26)}
.btn-accent:hover{background:var(--color-accent-dark);transform:translateY(-2px)}
.btn:active{transform:scale(.98)}
a:focus-visible,button:focus-visible{outline:3px solid rgba(29,95,191,.28);outline-offset:3px;border-radius:var(--radius-full)}
/* 悬浮胶囊导航 */
.site-header{position:sticky;top:16px;z-index:120;width:min(92%,1140px);margin:0 auto;padding:0 22px;border-radius:var(--radius-full);background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);outline:1px solid rgba(255,255,255,.8);box-shadow:var(--shadow-nav);transition:box-shadow .25s}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:baseline;gap:6px;font-size:1.15rem;font-weight:800;color:var(--color-text);letter-spacing:.02em}
.brand i{color:var(--color-primary)}
.brand em{font-style:normal;font-size:.68rem;font-weight:600;color:var(--color-white);background:var(--color-primary);padding:2px 8px;border-radius:var(--radius-full);vertical-align:2px;margin-left:4px}
.nav-menu{display:flex;align-items:center;gap:8px}
.nav-link{display:inline-flex;align-items:center;gap:6px;color:var(--color-text-secondary);font-size:.875rem;font-weight:500;padding:8px 14px;border-radius:var(--radius-full);transition:all .2s}
.nav-link:hover{color:var(--color-primary);background:var(--color-primary-light)}
.nav-link.active{color:var(--color-primary);background:var(--color-primary-light);font-weight:700}
.nav-menu .btn{padding:9px 18px;font-size:.8125rem;margin-left:8px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--radius-full);align-items:center;justify-content:center;background:var(--color-primary-light);color:var(--color-primary);font-size:1.1rem;transition:all .2s}
.nav-toggle:hover{background:rgba(29,95,191,.16)}
/* Hero */
.hero{max-width:var(--container);margin:24px auto 0;width:calc(100% - 32px);border-radius:var(--radius-lg);overflow:hidden;position:relative;min-height:720px;display:flex;align-items:center;background:url("/assets/images/backpic/back-1.png") no-repeat right center / cover;box-shadow:var(--shadow-sm)}
.hero::before{position:absolute;inset:0;content:"";background:linear-gradient(90deg,rgba(236,243,251,1) 0%,rgba(236,243,251,.94) 42%,rgba(236,243,251,.78) 72%,rgba(236,243,251,.22) 100%)}
.hero-inner{position:relative;z-index:2;padding:80px 6% 88px;max-width:680px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid rgba(29,95,191,.12);color:var(--color-primary);font-weight:700;font-size:.75rem;padding:6px 14px;border-radius:var(--radius-full);margin-bottom:24px;box-shadow:0 4px 12px rgba(29,95,191,.06)}
.hero h1{font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.25;font-weight:700;letter-spacing:-.02em;color:var(--color-text);margin-bottom:24px}
.hero h1 strong{color:var(--color-primary)}
.hero-sub{font-size:1.0625rem;color:var(--color-text-secondary);line-height:1.85;max-width:600px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.hero-note{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--color-text-secondary);margin-top:26px}
.hero-note i{color:var(--color-accent)}
/* 信任指标 */
.trust-strip{max-width:var(--container);margin:24px auto 0;background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:34px 48px;width:calc(100% - 32px)}
.trust-grid{display:flex;gap:28px;justify-content:space-between;flex-wrap:wrap}
.trust-item{flex:1;min-width:180px;display:flex;align-items:center;gap:14px}
.trust-item .icon{width:52px;height:52px;border-radius:var(--radius-md);background:var(--color-primary-light);color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.trust-item strong{display:block;font-size:1.75rem;font-weight:800;line-height:1.2;letter-spacing:-.02em}
.trust-item span{font-size:.8125rem;color:var(--color-text-secondary)}
/* 玩法介绍 */
.flow-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:center}
.flow-list{position:relative;margin-top:14px}
.flow-list::before{content:"";position:absolute;left:28px;top:20px;bottom:20px;width:2px;background:linear-gradient(180deg,var(--color-primary),rgba(29,95,191,.05));border-radius:var(--radius-full)}
.flow-step{position:relative;display:flex;gap:22px;padding:0 0 36px}
.flow-step:last-child{padding-bottom:0}
.flow-step .num{position:relative;z-index:2;width:56px;height:56px;border-radius:var(--radius-full);background:#fff;border:2px solid var(--color-primary);color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:800;box-shadow:0 6px 18px rgba(29,95,191,.12);flex-shrink:0}
.flow-step.flash .num{background:var(--color-primary);color:#fff}
.flow-step h3{font-size:1.125rem;font-weight:700;margin-bottom:6px}
.flow-step p{color:var(--color-text-secondary);font-size:.9375rem}
/* 奖励预览 */
.media-rows{display:flex;flex-direction:column;gap:36px}
.media-row{background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;display:grid;grid-template-columns:1fr 1fr;align-items:center}
.media-row.reverse .media-pic{order:2}
.media-pic{min-height:330px}
.media-pic img{width:100%;height:100%;object-fit:cover;min-height:330px}
.media-body{padding:42px 38px}
.media-body .kicker{display:inline-flex;align-items:center;gap:8px;background:var(--color-accent-light);color:var(--color-accent-dark);font-size:.75rem;font-weight:600;padding:5px 14px;border-radius:var(--radius-full);margin-bottom:16px}
.media-body h3{font-size:1.6rem;line-height:1.4;margin-bottom:14px}
.media-body p{color:var(--color-text-secondary);margin-bottom:18px}
.media-body .feature-list li{display:flex;gap:10px;padding:7px 0;color:var(--color-text);font-size:.9375rem}
.media-body .feature-list li i{color:var(--color-primary);font-size:1rem;margin-top:3px}
.media-cta{margin-top:16px}
/* 任务面板 */
.task-panel-bg{background:var(--color-primary-mist);border-radius:var(--radius-lg);padding:72px 6%;position:relative;overflow:hidden}
.task-panel-bg::after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:rgba(29,95,191,.05);top:-40px;right:-40px}
.task-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;position:relative;z-index:2}
.task-intro h2{font-size:clamp(1.375rem,2.4vw,1.875rem);margin-bottom:18px}
.task-intro p{color:var(--color-text-secondary);margin-bottom:22px}
.task-intro .btn{margin-top:6px}
.task-panel{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:28px 30px}
.task-panel-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid var(--color-border);margin-bottom:8px}
.task-panel-head strong{font-size:1.125rem}
.task-panel-head span{font-family:var;-size:.75rem;color:var(--color-text-secondary)}
.task-item{display:flex;flex-direction:column;padding:14px 0;border-bottom:1px dashed var(--color-border)}
.task-item:last-child{border-bottom:none}
.task-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.task-name{font-weight:600;font-size:.9375rem}
.task-name small{display:block;color:var(--color-text-secondary);font-weight:400;font-size:.75rem;margin-top:2px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;padding:4px 12px;border-radius:var(--radius-full)}
.badge-started{background:var(--color-accent-light);color:var(--color-accent-dark)}
.badge-done{background:rgba(16,185,129,.12);color:#0f9f74}
.badge-todo{background:rgba(100,116,139,.1);color:#64748b}
.progress{height:8px;border-radius:var(--radius-full);background:var(--color-border);margin-bottom:4px;overflow:hidden}
.progress > i{display:block;height:100%;border-radius:var(--radius-full);background:linear-gradient(90deg,#1D5FBF,var(--color-accent));transition:width .4s}
.progress-note{display:flex;justify-content:space-between;font-size:.75rem;color:var(--color-text-secondary)}
.panel-cta{display:block;text-align:center;margin-top:18px;padding:13px 18px;border-radius:var(--radius-full);background:var(--color-primary);color:#fff;font-weight:700;font-size:.9375rem;transition:background .2s}
.panel-cta:hover{background:var(--color-primary-dark)}
/* 权益说明 */
.benefits-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.benefits-card{background:var(--color-surface);border-radius:var(--radius-lg);padding:36px 34px;box-shadow:var(--shadow-sm)}
.benefits-card h3{font-size:1.35rem;margin-bottom:22px;display:flex;align-items:center;gap:10px}
.benefits-card h3 i{color:var(--color-accent)}
.options-list{display:flex;flex-direction:column;gap:16px}
.option-item{display:flex;gap:14px}
.option-item .mark{width:44px;height:44px;background:var(--color-primary-light);color:var(--color-primary);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.15rem;flex-shrink:0}
.option-item h4{font-size:.9375rem;margin-bottom:4px}
.option-item p{font-size:.875rem;color:var(--color-text-secondary);line-height:1.65}
.right-card{background:linear-gradient(180deg,#fff, #f4f9fc);border:1px solid rgba(29,95,191,.1);border-radius:var(--radius-lg);padding:36px 34px;box-shadow:var(--shadow-sm)}
.right-card .level-badge{display:inline-flex;background:var(--color-primary-light);color:var(--color-primary);padding:4px 14px;border-radius:var(--radius-full);font-size:.75rem;margin-bottom:18px}
.right-card h3{font-size:1.3rem;margin-bottom:12px}
.right-card p{color:var(--color-text-secondary);font-size:.9375rem}
.level-list{margin-top:18px;border-top:1px solid var(--color-border);padding-top:14px}
.level-item{display:flex;justify-content:space-between;padding:8px 0;font-size:.875rem}
.level-item b{color:var(--color-primary)}
.level-bar{background:var(--color-border);height:8px;border-radius:var(--radius-full);overflow:hidden;margin-top:12px}
.level-bar span{display:block;height:100%;width:62%;background:var(--color-accent);border-radius:var(--radius-full)}
/* 最新资讯 CMS */
.news-section{background:#f1f6fc;border-radius:var(--radius-lg) 0 0 var(--radius-lg)}
.news-section .section-in{width:min(100%,1280px);margin:0 auto;padding:96px 24px}
.news-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:18px;margin-bottom:42px}
.news-head h2{font-size:clamp(1.375rem,2.4vw,1.875rem)}
.news-more{display:inline-flex;align-items:center;gap:8px;color:var(--color-primary);font-weight:600;font-size:.875rem}
.news-more:hover i{transform:translateX(4px)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;padding:24px;transition:box-shadow .25s,transform .25s,border-color .25s}
.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:transparent}
.news-tag{align-self:flex-start;background:var(--color-primary-light);color:var(--color-primary);padding:5px 14px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;margin-bottom:14px}
.news-card h3{font-size:1.075rem;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:52px}
.news-card .summary{color:var(--color-text-secondary);font-size:.875rem;line-height:1.7;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--color-border);font-size:.75rem;color:var(--color-text-secondary)}
.news-meta i{margin-right:4px}
.news-link{color:var(--color-primary);font-weight:700;display:inline-flex;align-items:center;gap:4px}
.news-card .empty-inner{text-align:center;color:var(--color-text-secondary);padding:60px 0;margin:20px 0}
.news-empty{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:62px;text-align:center;color:var(--color-text-secondary);grid-column:1/-1}
.news-empty i{font-size:2.4rem;color:#CBD5E1;margin-bottom:14px}
/* FAQ */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin-bottom:16px;overflow:hidden;transition:box-shadow .2s}
.faq-item.active{box-shadow:var(--shadow-md)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 26px;font-size:1rem;font-weight:600;text-align:left;color:var(--color-text);transition:color .2s}
.faq-q:hover{color:var(--color-primary)}
.faq-q .qi{flex-shrink:1}
.faq-icon{width:30px;height:30px;border-radius:50%;background:var(--color-primary-light);color:var(--color-primary);display:flex;align-items:center;justify-content:center;transition:transform .3s,background .3s,color .3s;flex-shrink:0}
.faq-icon i{font-size:.9rem}
.faq-item.active .faq-icon{background:var(--color-primary);color:#fff;transform:rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{padding:0 26px 22px;color:var(--color-text-secondary);font-size:.9375rem;line-height:1.85;border-top:1px dashed var(--color-border);margin:0 26px 16px ;padding-top:14px}
/* 最终 CTA */
.cta-area{max-width:1140px;margin:0 auto 88px;padding:72px 6%;background:#1e3750;border-radius:var(--radius-lg);text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-area::before{content:"";position:absolute;left:12%;top:-60px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-area::after{content:"";position:absolute;right:8%;bottom:-70px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-area h2{font-size:clamp(1.6rem,3vw,2.1rem);line-height:1.4;margin-bottom:16px;position:relative;z-index:2}
.cta-area p{color:#c9d8e8;margin-bottom:28px;position:relative;z-index:2}
.cta-area .btn{position:relative;z-index:2}
/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--color-border);padding-top:68px}
.footer-top{max-width:1240px;margin:0 auto;padding:0 24px 48px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand .brand{font-size:1.25rem;margin-bottom:16px}
.footer-brand p{color:var(--color-text-secondary);font-size:.875rem;line-height:1.8}
.footer-col h4{font-size:.9375rem;font-weight:700;margin-bottom:16px}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{color:var(--color-text-secondary);font-size:.875rem;transition:color .2s,padding-left .2s}
.footer-col ul a:hover{color:var(--color-primary);padding-left:4px}
.footer-contact li{display:flex;gap:10px;color:var(--color-text-secondary);font-size:.875rem;margin-bottom:10px}
.footer-contact i{color:var(--color-primary);margin-top:4px}
.footer-bottom{border-top:1px solid var(--color-border);padding:22px 24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;color:var(--color-text-secondary);font-size:.8125rem;max-width:1240px;margin:0 auto}
.footer-bottom .domain{letter-spacing:.03em}
/* responsive */
@media(max-width:1023px){
  :root{--section-space:78px}
  .site-header{top:8px;width:100%;max-width:calc(100% - 24px)}
  .flow-wrap,.task-grid,.benefits-grid{grid-template-columns:1fr;gap:36px}
  .media-row{grid-template-columns:1fr}
  .media-row.reverse .media-pic{order:0}
  .media-pic{order:0;min-height:0}
  .media-pic img{min-height:250px;max-height:340px}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
  .nav-menu{display:none;position:absolute;top:72px;left:12px;right:12px;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-radius:20px;flex-direction:column;align-items:stretch;padding:12px;box-shadow:0 16px 40px rgba(30,42,58,.14)}
  .nav-menu.open{display:flex;max-height:70vh;overflow:auto}
  .nav-menu .nav-link{padding:11px 16px;display:flex}
  .nav-menu .btn{margin:8px 0 0 0;display:flex;justify-content:center}
  .nav-toggle{display:flex}
  .hero{min-height:0}
  .hero h1{font-size:2rem}
}
@media(max-width:767px){
  :root{--section-space:64px}
  .container{padding:0 16px}
  .section-header{margin-bottom:36px}
  .hero-inner{padding:58px 12px 56px}
  .hero-actions .btn{width:100%}
  .trust-strip{width:calc(100% - 24px);padding:24px}
  .trust-grid{gap:18px}
  .trust-item{min-width:46%;}
  .media-body{padding:28px 22px}
  .media-pic img{min-height:190px}
  .media-body h3{font-size:1.35rem}
  .task-panel-bg{padding:48px 16px}
  .task-panel{padding:20px 16px}
  .task-top{flex-direction:column;align-items:flex-start}
  .news-section .section-in{padding:60px 16px}
  .news-grid{grid-template-columns:1fr}
  .news-card{padding:20px}
  .news-card h3{font-size:1rem}
  .cta-area{max-width:calc(100% - 32px);padding:56px 20px}
  .faq-q,.faq-a-inner{padding-left:20px;padding-right:20px}
  .brand{font-size:1rem}
  .brand em{display:none}
  .site-header{padding:0 14px}
  .nav-wrap{height:58px}
  .nav-toggle{width:40px;height:40px}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:30px}
  .footer-bottom{justify-content:center;text-align:center;padding:18px 16px}
}

/* roulang page: article */
:root{
  --primary:#2563EB;
  --primary-dark:#1D4ED8;
  --primary-light:rgba(37,99,235,.09);
  --accent:#0F9B85;
  --accent-dark:#0B7C6B;
  --accent-light:rgba(15,155,133,.12);
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --text:#1E2A3A;
  --muted:#54657A;
  --border:#E2E8F0;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-full:999px;
  --shadow-sm:0 4px 20px rgba(30,42,58,.06);
  --shadow-md:0 10px 30px rgba(30,42,58,.10);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --section:96px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input{font:inherit}
:focus-visible{outline:3px solid rgba(37,99,235,.22);outline-offset:2px;border-radius:8px}
.container{width:min(1140px,92%);margin-inline:auto}
.container-narrow{width:min(820px,92%);margin-inline:auto}
.section{padding:64px 0}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.72em 1.5em;
  border-radius:var(--radius-full);
  font-weight:600;
  font-size:.95rem;
  line-height:1.2;
  border:1.5px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  cursor:pointer;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 8px 22px rgba(37,99,235,.22)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(37,99,235,.26)}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(15,155,133,.22)}
.btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);transform:translateY(-2px)}
.btn:active{transform:scale(.98)}
.btn-sm{font-size:.85rem;padding:.55em 1.12em}
.btn-block{width:100%}

/* Header */
.site-header{
  position:sticky;
  top:12px;
  z-index:999;
  margin-bottom:2px;
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:min(1140px,94%);
  margin-inline:auto;
  padding:9px 16px;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border:1px solid rgba(255,255,255,.75);
  border-radius:var(--radius-full);
  box-shadow:0 8px 28px rgba(37,99,235,.08);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  color:var(--text);
  font-size:1.1rem;
  font-weight:800;
  letter-spacing:.01em;
  flex-shrink:0;
}
.brand i{color:var(--primary);font-size:1.25rem;background:var(--primary-light);border-radius:50%;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center}
.brand em{font-style:normal;color:var(--primary);font-weight:700;font-size:.8rem;display:inline-block;background:var(--primary-light);padding:.15em .6em;border-radius:var(--radius-full);margin-left:.15em;vertical-align:.1em}
.nav-menu{display:flex;align-items:center;gap:2px;flex-wrap:wrap;justify-content:flex-end}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:.42em;
  color:var(--muted);
  font-size:.92rem;
  font-weight:500;
  border-radius:var(--radius-full);
  padding:.5em 1em;
  transition:color .2s ease,background .2s ease;
}
.nav-link i{font-size:.9rem;color:var(--primary)}
.nav-link:hover{background:var(--primary-light);color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff}
.nav-link.active i{color:#fff}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border:1px solid var(--border);
  border-radius:50%;
  background:#fff;
  color:var(--text);
  cursor:pointer;
  font-size:1.1rem;
}

/* Article hero */
.article-hero{
  position:relative;
  overflow:hidden;
  background:#EEF4FB;
  padding:38px 0 30px;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;
  pointer-events:none;
}
.article-hero .container-narrow{position:relative}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  font-size:.88rem;
  color:var(--muted);
  margin-bottom:24px;
}
.crumbs i{font-size:.8rem;color:var(--primary)}
.crumbs a{color:var(--muted);transition:color .2s}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.5}
.crumbs .now{color:var(--primary);font-weight:600;max-width:340px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-header h1{
  font-size:clamp(1.45rem,3vw,2.2rem);
  line-height:1.4;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--text);
  margin-bottom:18px;
  word-break:break-word;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 22px;
  color:var(--muted);
  font-size:.9rem;
}
.meta-chip{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  background:rgba(255,255,255,.72);
  border:1px solid rgba(226,232,240,.9);
  padding:.2em .7em;
  border-radius:var(--radius-full);
  color:var(--muted);
}
.meta-chip i{color:var(--primary)}
.meta-chip.cat{background:var(--primary-light);border-color:transparent;color:var(--primary);font-weight:600}

/* Article card */
.article-wrap{padding:34px 0 30px}
.article-card{
  background:var(--surface);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:clamp(24px,5vw,48px);
  border:1px solid rgba(226,232,240,.7);
}
.article-body{
  font-size:1.0625rem;
  line-height:1.9;
  color:var(--text);
}
.article-body p{margin:0 0 1.65em}
.article-body h2{
  font-size:clamp(1.25rem,2vw,1.6rem);
  line-height:1.5;
  font-weight:700;
  margin:2.2em 0 .85em;
  padding-bottom:.5em;
  border-bottom:2px solid var(--primary-light);
  color:var(--text);
}
.article-body h3{font-size:1.2rem;margin:1.9em 0 .7em;font-weight:700;color:var(--primary-dark)}
.article-body h4{font-size:1.05rem;margin:1.6em 0 .55em;font-weight:600;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.65em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:2em 0;
  padding:1.15em 1.4em;
  background:var(--primary-light);
  border-left:4px solid var(--primary);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--text);
}
.article-body blockquote p{display:inline;margin:0}
.article-body img{border-radius:var(--radius-md);width:100%;height:auto;object-fit:cover;margin:1.6em 0;border:1px solid var(--border)}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-color:rgba(37,99,235,.3);text-underline-offset:4px;transition:color .2s}
.article-body a:hover{color:var(--primary-dark);text-decoration-color:var(--primary)}
.article-body code{
  background:#F1F5F9;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:.12em .45em;
  font-size:.92em;
  color:#334155;
  word-break:break-all;
}
.article-body pre{background:#0F172A;color:#E2E8F0;border-radius:var(--radius-md);padding:18px 20px;overflow-x:auto;margin:1.7em 0;line-height:1.7}
.article-body pre code{background:transparent;border:0;color:inherit;padding:0}
.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  margin-top:32px;
  padding-top:18px;
  border-top:1px solid var(--border);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:.35em;
  background:#F1F5F9;
  color:var(--muted);
  border-radius:var(--radius-full);
  font-size:.78rem;
  padding:.32em .8em;
  font-weight:500;
}
.tag i{color:var(--primary);font-size:.8em}

/* Extend cards */
.extend-section{padding:24px 0 64px}
.extend-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.extend-head h2{font-size:clamp(1.3rem,2.4vw,1.7rem);color:var(--text)}
.extend-head p{color:var(--muted);font-size:.9rem;max-width:420px}
.extend-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.extend-card{
  background:#fff;
  border:1px solid rgba(226,232,240,.85);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.extend-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.extend-photo{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E8EFF7}
.extend-photo img{width:100%;height:100%;object-fit:cover}
.extend-text{padding:22px}
.extend-text h3{
  font-size:1.05rem;font-weight:700;line-height:1.5;margin-bottom:8px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:1;line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.extend-text p{
  font-size:.9rem;color:var(--muted);line-height:1.7;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.extend-link{display:inline-flex;align-items:center;gap:.4rem;color:var(--primary);font-weight:600;font-size:.88rem}
.extend-link i{transition:transform .2s}
.extend-link:hover i{transform:translateX(4px)}

/* CTA band */
.subscribe-section{padding:10px 0 80px}
.subscribe-card{
  background:linear-gradient(180deg,#EEF4FB,#F8FAFC);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:clamp(28px,5vw,48px);
  text-align:center;
  box-shadow:var(--shadow-sm);
  position:relative;
  overflow:hidden;
}
.subscribe-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.05;
  pointer-events:none;
}
.subscribe-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:58px;height:58px;
  border-radius:50%;
  background:rgba(255,255,255,.85);
  color:var(--primary);
  font-size:1.4rem;
  box-shadow:var(--shadow-sm);
  margin-bottom:18px;
}
.subscribe-card h2{font-size:clamp(1.3rem,2.6vw,1.9rem);font-weight:700;margin-bottom:12px}
.subscribe-card p{color:var(--muted);max-width:600px;margin:0 auto 26px;font-size:.98rem}
.subscribe-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Missing */
.missing-state{
  text-align:center;
  padding:48px 10px 38px;
}
.missing-state .missing-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:72px;height:72px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  font-size:2rem;margin-bottom:20px;
}
.missing-state h1{font-size:1.5rem;font-weight:700;margin-bottom:8px}
.missing-state p{color:var(--muted);margin-bottom:24px}
.missing-state .btn{padding:.7em 2.1em}

/* Footer */
.site-footer{background:#17233A;color:#B9C6D8;border-top:2px solid var(--primary)}
.site-footer a{color:#C7D3E3;transition:color .2s}
.site-footer a:hover{color:#fff}
.footer-top{
  width:min(1140px,92%);margin-inline:auto;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;padding:66px 0 46px;
}
.footer-top .brand{color:#fff;font-size:1.15rem;margin-bottom:16px}
.footer-top .brand i{background:var(--primary);color:#fff}
.footer-brand p{font-size:.9rem;line-height:1.85;color:#AAB8C9;max-width:320px}
.footer-col h4{color:#fff;font-size:.96rem;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:.65rem;font-size:.88rem}
.footer-col ul li a{display:inline-flex;align-items:center;gap:.35rem}
.footer-col ul li a i{font-size:.72rem;color:var(--primary)}
.footer-contact li{display:flex;gap:.4rem;font-size:.88rem;color:#AAB8C9;margin-bottom:.7rem}
.footer-contact i{color:var(--primary);margin-top:.3em}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
}
.footer-bottom .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.85rem;color:#91A3BA;
}
.footer-bottom .domain{letter-spacing:.05em;opacity:.8}

/* Responsive */
@media(max-width:1023px){
  .footer-top{grid-template-columns:1fr 1fr;gap:34px}
  .extend-grid{grid-template-columns:repeat(2,1fr)}
  .nav-menu{gap:0}
  .nav-link{padding:.45em .75em;font-size:.85rem;gap:.35em}
}
@media(max-width:767px){
  .section{padding:52px 0}
  .nav-wrap{width:96%;padding:8px 10px 8px 14px;border-radius:34px}
  .nav-toggle{display:inline-flex}
  .nav-menu{
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    position:absolute;
    top:calc(100% + 10px);
    left:8px;
    right:8px;
    background:#fff;
    border-radius:20px;
    padding:14px;
    box-shadow:var(--shadow-md);
    border:1px solid var(--border);
    max-height:min(64vh,440px);
    overflow-y:auto;
  }
  .nav-menu.open{display:flex}
  .nav-link{border-radius:12px;padding:.75em .95em;font-size:.95rem;justify-content:flex-start}
  .btn.btn-accent{margin-top:8px;border-radius:12px}
  .brand em{display:none}
  .extend-grid{grid-template-columns:1fr}
  .extend-head{flex-direction:column;align-items:flex-start}
  .subscribe-actions{flex-direction:column}
  .subscribe-actions .btn{width:100%}
  .article-card{padding:24px 18px}
  .article-tags{margin-top:24px}
  .crumbs .now{max-width:210px}
  .article-wrap{padding:24px 0 20px}
  .footer-top{grid-template-columns:1fr;padding:48px 0 36px;gap:28px}
  .footer-bottom .container{justify-content:center;text-align:center}
}
@media(max-width:480px){
  .brand{font-size:.98rem}
  .brand i{width:30px;height:30px;font-size:1.05rem}
}

/* roulang page: category1 */
:root{
  --color-primary:#1D5FBF;
  --color-primary-dark:#15488F;
  --color-primary-light:rgba(29,95,191,.1);
  --color-accent:#FF6B4A;
  --color-accent-dark:#E04F2E;
  --color-accent-light:rgba(255,107,74,.12);
  --color-bg:#F6F8FB;
  --color-surface:#FFFFFF;
  --color-text:#1E2A3A;
  --color-text-secondary:#5C6F84;
  --color-border:#E1E8F0;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --radius-full:999px;
  --shadow-card:0 4px 20px rgba(30,42,58,.06);
  --shadow-card-hover:0 12px 34px rgba(30,42,58,.1);
  --font-main:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  --container-width:1160px;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-main);
  font-size:1rem;
  line-height:1.75;
  background:var(--color-bg);
  color:var(--color-text);
  -webkit-font-smoothing:antialiased;
}
body.nav-lock{overflow:hidden;}
ul,ol{list-style:none;}
a{color:var(--color-primary);text-decoration:none;transition:color .2s;}
a:hover{color:var(--color-primary-dark);}
img{display:block;max-width:100%;}
button,input,textarea{font-family:inherit;font-size:1rem;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:3px solid var(--color-primary-light);outline-offset:2px;border-radius:4px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.container{width:min(var(--container-width),92%);margin:0 auto;}
.section{padding:var(--space-section) 0;}
.section-tight{padding:56px 0;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:600;letter-spacing:.02em;
  color:var(--color-primary);background:var(--color-primary-light);
  border-radius:var(--radius-full);padding:7px 18px;
}
.section-head{margin-bottom:44px;}
.section-title{
  font-size:clamp(1.6rem,2.6vw,2.1rem);line-height:1.3;
  margin:18px 0 12px;font-weight:700;letter-spacing:-.02em;
}
.section-desc{color:var(--color-text-secondary);max-width:680px;font-size:1.0625rem;}

.site-header{
  position:sticky;top:14px;z-index:1000;
  padding:0 16px;
  max-width:1180px;margin:16px auto 0;
}
.nav-wrap{
  display:flex;align-items:center;gap:20px;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border:1px solid rgba(255,255,255,.75);
  box-shadow:0 6px 24px rgba(29,95,191,.1);
  border-radius:var(--radius-full);
  padding:12px 12px 12px 24px;
  position:relative;
  transition:box-shadow .3s;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:1.25rem;letter-spacing:-.02em;
  color:var(--color-text);white-space:nowrap;
}
.brand i{color:var(--color-primary);font-size:1.4rem;}
.brand em{
  font-style:normal;font-size:.75rem;font-weight:500;color:#7B8DA3;
  background:#f0f4fa;border-radius:var(--radius-full);padding:2px 9px;
  margin-left:2px;
}
.nav-menu{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;justify-content:flex-end;
}
.nav-link{
  color:#33475C;font-size:.925rem;font-weight:500;
  padding:9px 14px;border-radius:var(--radius-full);
  display:inline-flex;align-items:center;gap:7px;
  transition:background .2s,color .2s,transform .2s;
}
.nav-link:hover{background:#EDF3FA;color:var(--color-primary-dark);}
.nav-link.active{background:var(--color-primary-light);color:var(--color-primary);font-weight:600;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-full);font-weight:600;
  padding:13px 30px;font-size:.96rem;line-height:1;
  border:1.5px solid transparent;
  transition:all .2s ease;white-space:nowrap;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 20px rgba(29,95,191,.2);}
.btn-primary:hover{background:var(--color-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(29,95,191,.28);}
.btn-outline{background:transparent;border-color:var(--color-primary);color:var(--color-primary);}
.btn-outline:hover{background:var(--color-primary-light);color:var(--color-primary-dark);border-color:var(--color-primary-dark);transform:translateY(-2px);}
.btn-accent{background:var(--color-accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.22);padding:12px 22px;}
.btn-accent:hover{background:var(--color-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,74,.3);}
.btn-light{background:#fff;color:var(--color-primary);border:1px solid var(--color-border);}
.btn-light:hover{background:#F6F9FE;color:var(--color-primary);border-color:var(--color-primary);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  background:#EDF3FA;color:var(--color-text);font-size:1.1rem;
  align-items:center;justify-content:center;flex:none;margin-left:auto;
}

.hero-category{
  position:relative;overflow:hidden;
  padding:64px 0 88px;margin-top:-10px;
}
.hero-category::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center 20%;
  opacity:.18;z-index:0;
}
.hero-category::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(80% 100% at 20% 0%,rgba(255,255,255,.8),rgba(246,248,251,.6) 100%);
  z-index:0;
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:.85rem;color:var(--color-text-secondary);margin-bottom:28px;
}
.breadcrumb i{font-size:.7rem;color:#A6B4C6;}
.breadcrumb a{color:var(--color-text-secondary);}
.breadcrumb a:hover{color:var(--color-primary);}
.breadcrumb .current{color:var(--color-text);font-weight:600;}
.hero-cat-title{
  font-size:clamp(2.1rem,5vw,3.4rem);
  font-weight:800;line-height:1.2;letter-spacing:-.03em;
  margin:12px 0 18px;
}
.hero-cat-title span{color:var(--color-primary);}
.hero-cat-sub{
  font-size:clamp(1.02rem,1.5vw,1.18rem);line-height:1.8;
  color:var(--color-text-secondary);max-width:660px;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-list{margin-top:38px;display:flex;flex-wrap:wrap;gap:16px;}
.hero-list li{
  display:flex;align-items:center;gap:8px;
  background:var(--color-surface);border:1px solid var(--color-border);
  box-shadow:var(--shadow-card);
  padding:9px 17px;border-radius:var(--radius-full);
  font-size:.875rem;color:#33475C;
}
.hero-list i{color:var(--color-primary);}
.hero-visual{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  background:rgba(255,255,255,.55);
  border:1px solid rgba(255,255,255,.8);
  border-radius:var(--radius-lg);
  padding:36px 44px;
  backdrop-filter:blur(4px);
  box-shadow:0 10px 40px rgba(30,42,58,.08);
  margin-top:44px;
}
.visual-copy .mini-title{font-size:.8rem;color:var(--color-primary);font-weight:700;letter-spacing:.1em;margin-bottom:18px;}
.visual-copy h2{font-size:clamp(1.4rem,2.3vw,1.9rem);line-height:1.35;}
.visual-copy p{margin-top:16px;color:var(--color-text-secondary);}
.visual-media{border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-card);}
.visual-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

.stats-band{
  background:#fff;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);
  padding:38px 0;margin-top:-20px;
}
.stats-list{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stats-item{text-align:center;padding:4px 10px;}
.stats-item .num{font-size:2.1rem;font-weight:800;line-height:1.2;color:var(--color-text);}
.stats-item .num i{font-style:normal;color:var(--color-primary);}
.stats-item .lbl{font-size:.875rem;color:var(--color-text-secondary);margin-top:6px;}
.stats-item + .stats-item{border-left:1px solid var(--color-border);}

.feature-section{background:#fff;}
.feature-row{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:68px;align-items:center;
}
.feature-row + .feature-row{margin-top:84px;}
.feature-row.reverse .feature-text{order:2;}
.feature-row.reverse .feature-media{order:1;}
.feature-index{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;font-weight:800;color:#9FB0C5;
  letter-spacing:.1em;
}
.feature-index span{
  width:34px;height:34px;border-radius:50%;
  background:var(--color-primary-light);color:var(--color-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.9rem;font-weight:800;
}
.feature-text h3{font-size:clamp(1.3rem,2.2vw,1.7rem);margin:14px 0 14px;line-height:1.4;}
.feature-text p{color:var(--color-text-secondary);line-height:1.9;}
.feature-list{margin-top:20px;display:grid;gap:12px;}
.feature-list li{display:flex;align-items:flex-start;gap:10px;font-weight:500;color:#28384D;}
.feature-list i{color:var(--color-primary);margin-top:6px;font-size:.95rem;}
.feature-media{
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-card-hover);
  border:6px solid #fff;
}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.media-note{
  margin-top:14px;display:flex;align-items:center;gap:8px;
  font-size:.8rem;color:#8899AE;background:#F3F7FC;
  padding:7px 14px;border-radius:var(--radius-full);width:max-content;
}

.process-section{background:linear-gradient(180deg,var(--color-bg),#fff 40%);}
.process-list{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:44px;counter-reset:process;position:relative;
}
.process-card{
  background:#fff;padding:34px 28px 28px;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);border:1px solid var(--color-border);
  transition:box-shadow .25s,transform .25s;
  position:relative;
}
.process-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-5px);}
.process-card .step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:14px;
  background:var(--color-primary-light);color:var(--color-primary);
  font-weight:800;font-size:1.05rem;margin-bottom:20px;
}
.process-card h3{font-size:1.12rem;margin-bottom:8px;}
.process-card p{font-size:.95rem;color:var(--color-text-secondary);line-height:1.8;}
.process-card:nth-child(2) .step-index{background:var(--color-accent-light);color:var(--color-accent-dark);}
.process-card:nth-child(3) .step-index{background:#EAF6F1;color:#1B8B6E;}

.scenario{background:#fff;}
.scenario-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.scenario-left h2{font-size:clamp(1.5rem,2.5vw,2rem);margin:14px 0 16px;}
.scenario-left > p{color:var(--color-text-secondary);font-size:1.05rem;margin-bottom:28px;}
.scenario-intro-list{display:grid;gap:18px;}
.scenario-intro-list li{display:flex;gap:14px;align-items:flex-start;}
.scenario-intro-list .icon{
  width:44px;height:44px;flex:none;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--color-primary-light);color:var(--color-primary);font-size:1.1rem;
}
.scenario-intro-list b{display:block;margin-bottom:3px;font-size:1rem;}
.scenario-intro-list p{font-size:.915rem;color:var(--color-text-secondary);}
.scenario-cases{
  display:grid;gap:16px;
}
.case-item{
  display:flex;align-items:center;gap:16px;
  background:#F8FAFD;border:1px solid var(--color-border);
  border-radius:var(--radius-md);padding:18px 20px;
  transition:all .25s;
}
.case-item:hover{background:#fff;border-color:#C6D6EA;box-shadow:var(--shadow-card);transform:translateX(4px);}
.case-item i{width:40px;height:40px;border-radius:12px;background:#fff;color:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:1rem;border:1px solid var(--color-border);}
.case-item b{display:block;font-size:.98rem;}
.case-item small{font-size:.875rem;color:var(--color-text-secondary);line-height:1.5;display:block;margin-top:2px;}

.notice-strip{
  background:#FFF8F5;border:1px solid #FFE3D8;border-radius:var(--radius-md);
  padding:16px 20px;display:flex;align-items:flex-start;gap:12px;
  font-size:.95rem;color:#5E5048;
  margin-top:40px;
}
.notice-strip i{color:var(--color-accent);margin-top:4px;}

.faq-section{background:var(--color-bg);}
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-head{text-align:center;margin-bottom:40px;}
.faq-head .section-title{margin-bottom:0;}
.faq-list{border-top:1px solid var(--color-border);}
.faq-item{
  background:#fff;border:1px solid var(--color-border);
  border-top:none;border-radius:0;
  transition:background .2s;
}
.faq-item:first-child{border-radius:var(--radius-md) var(--radius-md) 0 0;border-top:1px solid var(--color-border);}
.faq-item:last-child{border-radius:0 0 var(--radius-md) var(--radius-md);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  list-style:none;cursor:pointer;padding:21px 24px;
  font-weight:600;color:var(--color-text);transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:#A6B4C6;transition:transform .25s;flex:none;}
.faq-item[open] summary{color:var(--color-primary);}
.faq-item[open] summary i{transform:rotate(45deg);color:var(--color-primary);}
.faq-answer{padding:0 24px 22px;color:var(--color-text-secondary);font-size:.96rem;line-height:1.85;}

.cta-section{
  background:#fff;position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--color-primary),var(--color-accent));
  opacity:.4;
}
.cta-card{
  background:linear-gradient(135deg,#F2F7FD,#FFFFFF 40%);
  border:1px solid #E0EAF6;border-radius:var(--radius-lg);
  padding:clamp(40px,6vw,70px) clamp(24px,4vw,64px);
  text-align:center;position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;width:300px;height:300px;
  background:radial-gradient(circle,rgba(29,95,191,.08),transparent 70%);
  right:-80px;top:-80px;border-radius:50%;
}
.cta-card h2{font-size:clamp(1.6rem,3vw,2.35rem);letter-spacing:-.02em;}
.cta-card > p{color:var(--color-text-secondary);max-width:560px;margin:16px auto 32px;}
.cta-card .cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

.subscribe-panel{
  margin-top:56px;background:#F8FAFD;border:1px solid var(--color-border);
  padding:40px;border-radius:var(--radius-lg);text-align:left;
  display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;
}
.subscribe-panel h3{font-size:1.4rem;}
.subscribe-panel p{color:var(--color-text-secondary);font-size:.95rem;margin-top:8px;}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1;min-width:180px;border:1.5px solid var(--color-border);
  padding:13px 16px;border-radius:var(--radius-full);background:#fff;
  color:var(--color-text);transition:border-color .2s;
}
.subscribe-form input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px var(--color-primary-light);}
.subscribe-tip{font-size:.78rem;color:var(--color-text-secondary);display:block;margin-top:8px;}

.site-footer{margin-top:0;background:#15243A;color:#C1CEE1;padding:0 0 0;}
.footer-top{
  margin:0 auto;display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr;
  gap:44px;padding:64px 0 50px;max-width:1140px;width:92%;
}
.site-footer .brand{color:#fff;}
.site-footer .brand i{color:#F9C74F;}
.footer-brand p{font-size:.9rem;line-height:1.9;margin-top:16px;color:#93A6C0;}
.footer-col h4{
  color:#fff;font-size:.98rem;margin-bottom:18px;
  display:flex;align-items:center;gap:8px;
  font-weight:600;
}
.footer-col h4::after{content:"";flex:1;height:1px;background:rgba(255,255,255,.12);margin-left:8px;max-width:32px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col .footer-contact{display:grid;gap:12px;}
.footer-col a,.footer-col li{
  color:#9FB2C8;font-size:.9rem;display:flex;align-items:flex-start;
  gap:8px;transition:color .2s;
}
.footer-col a:hover{color:#fff;}
.footer-contact i{color:#6E84A2;font-size:.95rem;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:.84rem;color:#8299B4;
  max-width:1140px;width:92%;margin:0 auto;
}
.footer-bottom .domain{font-family:ui-monospace,monospace;letter-spacing:.02em;}
.footer-bottom span{display:inline-flex;align-items:center;gap:6px;}

/* Responsive */
@media (max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr;row-gap:40px;}
  .process-list{grid-template-columns:1fr 1fr;}
  .feature-row{gap:36px;}
  .scenario-grid{grid-template-columns:1fr;gap:36px;}
  .subscribe-panel{grid-template-columns:1fr;text-align:left;padding:28px;}
  .hero-visual{padding:28px;}
}

@media (max-width:860px){
  :root{--space-section:70px;}
  .site-header{max-width:100%;margin-top:8px;}
  .nav-menu{
    display:none;
    position:absolute;top:calc(100% + 10px);left:14px;right:14px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--color-border);
    border-radius:20px;box-shadow:var(--shadow-card-hover);
    padding:14px;max-height:56vh;overflow-y:auto;
  }
  .nav-menu.nav-open{display:flex;animation:drowDown .25s ease;}
  .nav-link{padding:13px 16px;border-radius:12px;justify-content:flex-start;
    border-bottom:1px solid #F1F5FA;}
  .nav-menu .btn{margin-top:10px;justify-content:center;}
  .nav-toggle{display:inline-flex;}
  .hero-visual{grid-template-columns:1fr;}
  .feature-row,.feature-row.reverse{grid-template-columns:1fr;gap:40px;}
  .feature-row.reverse .feature-text{order:1;}
  .feature-row.reverse .feature-media{order:2;}
  .visual-media img{aspect-ratio:16/10;}
  .process-list{grid-template-columns:1fr;}
  .stats-list{grid-template-columns:1fr 1fr;row-gap:28px;}
  .stats-item + .stats-item{border-left:none;}
  .stats-item:nth-child(3){border-left:none;}
  .stats-item:nth-child(2){border-right:1px solid var(--color-border);}
}

@media (max-width:560px){
  :root{--space-section:64px;}
  .section-title{font-size:1.5rem;}
  .hero-category{padding:40px 0 60px;}
  .hero-cat-sub{font-size:1rem;}
  .hero-actions .btn{width:100%;max-width:340px;}
  .hero-list{width:100%;}
  .hero-list li{width:100%;justify-content:center;}
  .stats-list{grid-template-columns:1fr 1fr;}
  .stats-item .num{font-size:1.65rem;}
  .process-card{padding:26px 20px;}
  .scenario-cases .case-item{flex-wrap:wrap;}
  .subscribe-panel{padding:22px;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form input{width:100%;text-align:center;}
  .cta-card{padding:36px 20px;}
  .cta-actions .btn{width:100%;max-width:340px;}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-top:48px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .nav-wrap{padding-left:20px;gap:10px;}
  .brand em{display:none;}
  .brand{font-size:1.15rem;}
}
@media (max-width:380px){
  .brand em{display:none;}
}
@keyframes drowDown{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}

/* roulang page: category2 */
:root {
  --color-primary: #1d5fbf;
  --color-primary-dark: #154b97;
  --color-primary-light: rgba(29, 95, 191, .10);
  --color-accent: #12a89d;
  --color-accent-dark: #0d8a82;
  --color-bg: #f6f8fb;
  --color-surface: #ffffff;
  --color-text: #1e2a3a;
  --color-text-secondary: #54657a;
  --color-border: #e2e8f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow-sm: 0 4px 20px rgba(30, 42, 58, .06);
  --shadow-md: 0 10px 30px rgba(30, 42, 58, .10);
  --container-max: 1140px;
  --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(29, 95, 191, .28);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.container {
  width: min(100% - 32px, 1140px);
  margin-inline: auto;
}

.container-wide {
  width: min(100% - 32px, 1280px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 100;
  width: min(calc(100% - 32px), 1140px);
  margin: 16px auto 0;
}

.nav-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 24px rgba(30, 42, 58, .08);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.075rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: .01em;
  white-space: nowrap;
}

.brand i {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: .95rem;
}

.brand em {
  font-style: normal;
  font-size: .74rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-primary-light);
  padding: 3px 8px;
  border-radius: 999px;
  margin-left: -2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .93rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 8px 4px;
  border-radius: 8px;
  transition: color .2s ease;
}

.nav-link i {
  font-size: .9rem;
  opacity: .85;
}

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

.nav-link.active {
  position: relative;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 0;
  height: 3px;
  background: var(--color-accent);
  border-radius: 999px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 28px;
  font-size: .94rem;
  font-weight: 700;
  line-height: 1.4;
  border-radius: var(--radius-full);
  border: 1.5px solid transparent;
  transition: background .22s ease, color .22s ease, border-color .22s ease, transform .2s ease, box-shadow .22s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(29, 95, 191, .22);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(29, 95, 191, .28);
}

.btn-outline {
  border-color: var(--color-primary);
  background: rgba(255, 255, 255, .58);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(18, 168, 157, .22);
}

.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(18, 168, 157, .30);
}

.btn:active {
  transform: scale(.98);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 1.05rem;
  align-items: center;
  justify-content: center;
}

.nav-toggle:hover {
  background: rgba(29, 95, 191, .18);
}

main {
  overflow: hidden;
}

.page-hero {
  margin-top: 34px;
  border-radius: var(--radius-lg);
  background: #eef4fb;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 74% 30%, rgba(29, 95, 191, .10), transparent 32%),
    linear-gradient(120deg, #f1f6fc 0%, #e8f0fb 58%, #f6f8fb 100%);
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: url("/assets/images/backpic/back-2.png") no-repeat right center / 45% auto;
  opacity: .95;
}

.hero-inner {
  padding: 54px 0 64px;
  display: grid;
  grid-template-columns: minmax(0, 620px) 1fr;
  gap: 24px;
  align-items: center;
}

.hero-copy {
  max-width: 620px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: .84rem;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.breadcrumb a {
  color: var(--color-primary);
  font-weight: 600;
  transition: color .2s;
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  background: rgba(18, 168, 157, .10);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4.2vw, 3rem);
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero-lead {
  font-size: 1.06rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 28px;
}

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

.hero-card {
  justify-self: end;
  align-self: end;
  width: min(100%, 320px);
  background: rgba(255, 255, 255, .78);
  border: 1px solid rgba(255, 255, 255, .9);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(6px);
}

.hero-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 12px;
}

.hero-card h3 {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
}

.hero-card p {
  font-size: .86rem;
  color: var(--color-text-secondary);
  margin-top: 6px;
}

.stat-strip {
  padding: 0;
  transform: translateY(-22px);
}

.stat-strip .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.stat-item {
  position: relative;
  padding: 30px 22px;
  text-align: center;
}

.stat-item + .stat-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: var(--color-border);
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat-label {
  font-size: .88rem;
  color: var(--color-text-secondary);
  margin-top: 6px;
  font-weight: 500;
}

.section-pad {
  padding: 72px 0;
}

.sec-head {
  max-width: 720px;
  margin-bottom: 46px;
}

.sec-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .84rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 5px 14px;
  border-radius: var(--radius-full);
}

.sec-head h2 {
  margin-top: 15px;
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.sec-head p {
  margin-top: 14px;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.split-row {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 60px;
  align-items: center;
}

.check-list {
  margin-top: 26px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  list-style: none;
  margin-bottom: 12px;
  box-shadow: 0 2px 8px rgba(30, 42, 58, .02);
}

.check-list i {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: .78rem;
  margin-top: 4px;
}

.check-list strong {
  display: block;
  font-size: .99rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.check-list span {
  font-size: .9rem;
  color: var(--color-text-secondary);
}

.split-media {
  position: relative;
}

.split-media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.media-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(255, 255, 255, .92);
  border-radius: 10px;
  padding: 10px 15px;
  font-size: .88rem;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.media-badge i {
  color: var(--color-primary);
}

.process-section {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.process-section::before {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -90px;
  top: -90px;
  border-radius: 50%;
  background: var(--color-primary-light);
  opacity: .6;
  pointer-events: none;
}

.process-grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 64px;
  align-items: center;
  padding: 56px 0;
}

.steps-list {
  counter-reset: step;
  position: relative;
}

.steps-list::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 40px;
  bottom: 40px;
  width: 2px;
  background: var(--color-border);
}

.step-item {
  counter-increment: step;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  position: relative;
  padding: 22px 0;
}

.step-marker {
  flex: 0 0 54px;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
  box-shadow: 0 6px 18px rgba(29, 95, 191, .20);
  z-index: 1;
}

.step-item:nth-child(2) .step-marker {
  background: var(--color-accent);
  box-shadow: 0 6px 18px rgba(18, 168, 157, .22);
}

.step-item:nth-child(3) .step-marker {
  background: #e7a323;
  box-shadow: 0 6px 18px rgba(231, 163, 35, .22);
}

.step-item:nth-child(4) .step-marker {
  background: #6c63d2;
  box-shadow: 0 6px 18px rgba(108, 99, 210, .22);
}

.step-text h3 {
  font-size: 1.13rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-text p {
  font-size: .94rem;
  color: var(--color-text-secondary);
  max-width: 480px;
}

.process-note {
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  margin-top: 30px;
  font-size: .9rem;
  color: var(--color-text);
  line-height: 1.8;
  display: flex;
  gap: 12px;
}

.process-note i {
  color: var(--color-primary);
  font-size: 1.2rem;
  margin-top: 4px;
}

.library-intro {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.library-intro h2 {
  margin-bottom: 14px;
}

.row-card {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 48px;
  align-items: center;
  padding: 58px 0;
  border-bottom: 1px solid var(--color-border);
}

.row-card:last-child {
  border-bottom: 0;
}

.row-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.row-card:nth-child(even) .row-media {
  order: 2;
}

.row-copy .kicker {
  display: inline-block;
  font-size: .82rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: .04em;
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.row-copy h3 {
  font-size: 1.45rem;
  line-height: 1.4;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.row-copy p {
  color: var(--color-text-secondary);
  font-size: .97rem;
  line-height: 1.9;
}

.row-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag-pill {
  font-size: .78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  background: #f1f5f9;
  color: var(--color-text-secondary);
}

.tag-pill.hot {
  background: rgba(231, 163, 35, .14);
  color: #9d6b0d;
}

.mission-section {
  padding: 86px 0;
  background: var(--color-surface);
}

.mission-layout {
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: 58px;
  align-items: center;
}

.mission-copy h2 {
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.35;
  margin-bottom: 16px;
}

.mission-copy p {
  color: var(--color-text-secondary);
  font-size: .98rem;
  margin-bottom: 20px;
}

.task-panel {
  background: #f9fbff;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 26px 28px;
  box-shadow: var(--shadow-sm);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.panel-head h3 {
  font-size: 1.15rem;
}

.panel-head span {
  font-size: .88rem;
  color: var(--color-text-secondary);
  background: #edf1f7;
  border-radius: 999px;
  padding: 4px 12px;
}

.task-row {
  padding: 15px 2px;
  border-bottom: 1px solid var(--color-border);
}

.task-row:last-of-type {
  border-bottom: 0;
}

.task-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
}

.task-name {
  font-weight: 700;
  font-size: .95rem;
}

.task-status {
  font-size: .76rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}

.task-status.done {
  background: rgba(18, 168, 157, .13);
  color: #0d8a82;
}

.task-status.active {
  background: rgba(231, 163, 35, .15);
  color: #9d6b0d;
}

.task-status.wait {
  background: #edf1f6;
  color: var(--color-text-secondary);
}

.progress-track {
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.task-row:nth-child(2) .progress-bar {
  width: 66%;
}

.task-row:nth-child(3) .progress-bar {
  width: 0;
}

.task-row:nth-child(4) .progress-bar {
  width: 100%;
}

.task-row:first-of-type .progress-bar {
  width: 100%;
}

.mission-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 22px;
  background: white;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--color-border);
}

.mission-total p {
  font-size: .88rem;
  color: var(--color-text-secondary);
}

.mission-total p strong {
  font-size: 1.2rem;
  color: var(--color-primary);
}

.faq-wrap {
  padding: 82px 0 26px;
}

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

.faq-title {
  text-align: center;
  margin-bottom: 44px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(30, 42, 58, .02);
  transition: box-shadow .2s ease, border-color .2s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

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

.faq-item summary i {
  transition: transform .25s ease;
  color: var(--color-primary);
  font-size: .95rem;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary-light);
}

.faq-item[open] summary i {
  transform: rotate(45deg);
}

.faq-item[open] summary {
  color: var(--color-primary);
}

.faq-answer {
  padding: 0 24px 22px;
  color: var(--color-text-secondary);
  line-height: 1.9;
  font-size: .94rem;
}

.cta-strip {
  padding: 40px 0 80px;
}

.cta-panel {
  position: relative;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid #e8eef7;
  border-radius: 24px;
  padding: 66px 30px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  isolation: isolate;
}

.cta-panel::before {
  content: "";
  position: absolute;
  top: -100px;
  left: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: var(--color-primary-light);
  opacity: .5;
  z-index: -1;
}

.cta-panel::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -100px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(18, 168, 157, .08);
  z-index: -1;
}

.cta-panel h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.35;
  margin-bottom: 14px;
}

.cta-panel p {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 28px;
  font-size: 1rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--color-border);
  margin-top: 20px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.1fr;
  gap: 44px;
  padding: 68px 24px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand p {
  font-size: .9rem;
  color: var(--color-text-secondary);
  line-height: 1.85;
  margin-top: 14px;
  max-width: 340px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

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

.footer-col a {
  font-size: .9rem;
  color: var(--color-text-secondary);
  transition: color .2s ease;
}

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

.footer-contact li {
  font-size: .88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.footer-contact i {
  margin-right: 6px;
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
  font-size: .86rem;
  color: var(--color-text-secondary);
}

.footer-bottom .domain {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--color-text-secondary);
}

.line-deco {
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: .35;
}

@media (max-width: 1023px) {
  .nav-menu {
    gap: 14px;
  }

  .nav-link {
    font-size: .85rem;
  }

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

  .hero-card {
    display: none;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 0;
  }

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

  .row-card {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 42px 0;
  }

  .row-card:nth-child(even) .row-media {
    order: 0;
  }

  .row-copy h3 {
    font-size: 1.3rem;
  }

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

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

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

  .stat-item + .stat-item::before {
    display: none;
  }

  .stat-item:nth-child(2n) {
    border-left: 1px solid var(--color-border);
  }

  .stat-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--color-border);
  }
}

@media (max-width: 767px) {
  .site-header {
    width: auto;
    margin: 12px 14px 0;
  }

  .nav-wrap {
    padding: 10px 14px;
  }

  .brand {
    font-size: 1rem;
  }

  .brand i {
    width: 34px;
    height: 34px;
    font-size: .85rem;
  }

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

  .nav-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(255, 255, 255, .97);
    border: 1px solid rgba(255, 255, 255, .8);
    border-radius: 20px;
    padding: 14px;
    box-shadow: var(--shadow-md);
    max-height: 74vh;
    overflow-y: auto;
    backdrop-filter: blur(14px);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu .btn {
    margin-top: 8px;
    width: 100%;
  }

  .nav-link {
    padding: 11px 12px;
    font-size: .95rem;
    border-radius: 10px;
  }

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

  .nav-link.active::after {
    display: none;
  }

  .page-hero {
    margin-top: 18px;
  }

  .page-hero::after {
    background: none;
  }

  .hero-inner {
    padding: 32px 0 40px;
  }

  .eyebrow {
    font-size: .78rem;
  }

  .hero-lead {
    font-size: .95rem;
  }

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

  .button-inline {
    width: auto !important;
  }

  .section-pad {
    padding: 52px 0;
  }

  .sec-head {
    margin-bottom: 34px;
  }

  .stat-strip .container {
    grid-template-columns: repeat(2, 1fr);
    border-radius: 12px;
  }

  .stat-num {
    font-size: 1.6rem;
  }

  .stat-label {
    font-size: .84rem;
  }

  .process-section {
    border-radius: 0;
    margin-left: -16px;
    margin-right: -16px;
  }

  .process-grid {
    padding: 34px 0 30px;
  }

  .step-marker {
    flex: 0 0 46px;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    font-size: 1rem;
  }

  .steps-list::before {
    left: 22px;
  }

  .faq-wrap {
    padding: 52px 0 20px;
  }

  .faq-item summary {
    padding: 16px 16px;
    font-size: .94rem;
  }

  .faq-answer {
    padding: 0 16px 20px;
    font-size: .9rem;
  }

  .cta-panel {
    padding: 46px 20px;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    padding: 44px 20px 28px;
    gap: 30px;
  }

  .footer-col h4 {
    margin-bottom: 12px;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
    padding: 18px 14px;
  }
}

@media (max-width: 520px) {
  .brand em {
    display: none;
  }

  .stat-item {
    padding: 22px 12px;
  }

  .stat-num {
    font-size: 1.4rem;
  }
}

/* roulang page: category3 */
:root {
  --color-primary: #1f5fb7;
  --color-primary-dark: #174b91;
  --color-primary-light: rgba(31, 95, 183, 0.09);
  --color-primary-lighter: rgba(31, 95, 183, 0.16);
  --color-accent: #0e9f8b;
  --color-accent-dark: #0b8070;
  --color-success: #2f9c5f;
  --color-warning: #d97706;
  --color-bg: #f6f8fb;
  --color-surface: #ffffff;
  --color-text: #1e2a3a;
  --color-text-secondary: #54657a;
  --color-border: #e3e9f1;
  --footer-bg: #14283f;
  --footer-text: #bfd0e2;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-card: 0 4px 24px rgba(30, 42, 58, 0.06);
  --shadow-hover: 0 14px 34px rgba(30, 42, 58, 0.11);
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

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

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

:focus-visible {
  outline: 3px solid rgba(31, 95, 183, 0.28);
  outline-offset: 3px;
  border-radius: 8px;
}

.container {
  width: min(1140px, 92%);
  margin-inline: auto;
}

.section {
  padding: 96px 0;
}

.section-sm {
  padding: 56px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 52px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  padding: 7px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}

h1, h2, h3, h4 {
  color: var(--color-text);
  line-height: 1.35;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 750;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.22rem;
  font-weight: 650;
}

p {
  margin: 0 0 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: var(--radius-full);
  padding: 13px 30px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  border: 1.5px solid transparent;
  cursor: pointer;
  background: transparent;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(31, 95, 183, 0.2);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 12px 28px rgba(31, 95, 183, 0.25);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-dark);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

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

.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(14, 159, 139, 0.24);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 4px 0;
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 18px;
  width: min(92%, 1140px);
  margin-inline: auto;
  background: rgba(255, 255, 255, 0.86);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-full);
  box-shadow: 0 8px 28px rgba(31, 95, 183, 0.08);
  padding: 10px 12px 10px 20px;
  transition: box-shadow 0.25s ease;
}

.nav-wrap:hover {
  box-shadow: 0 12px 30px rgba(31, 95, 183, 0.11);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.22rem;
  font-weight: 750;
  color: var(--color-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand i {
  color: var(--color-primary);
  font-size: 1.4rem;
}

.brand em {
  font-style: normal;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-left: 1px solid var(--color-border);
  padding-left: 10px;
  margin-left: 2px;
}

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

.nav-menu .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-weight: 550;
  font-size: 0.94rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-menu .nav-link i {
  font-size: 0.9rem;
  color: var(--color-primary);
  opacity: 0.75;
}

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

.nav-menu .nav-link.active {
  background: var(--color-primary);
  color: #fff;
}

.nav-menu .nav-link.active i {
  color: #fff;
  opacity: 1;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  margin-left: auto;
  transition: background 0.2s ease, transform 0.2s ease;
}

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

/* Breadcrumb */
.breadcrumb {
  background: transparent;
  padding: 34px 0 4px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
}

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

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

.breadcrumb .current {
  color: var(--color-text);
  font-weight: 600;
}

.breadcrumb i {
  font-size: 0.75rem;
  color: #90a0b4;
}

/* Page hero */
.page-hero {
  position: relative;
  margin-top: 16px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(100deg, rgba(242, 247, 255, 0.95) 0%, rgba(238, 244, 251, 0.74) 58%, rgba(215, 230, 249, 0.72) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 80px 0 106px;
}

.page-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding-right: 42px;
}

.hero-rule {
  width: 64px;
  height: 3px;
  border-radius: 8px;
  background: var(--color-accent);
  margin: 0 0 22px;
}

.page-hero h1 {
  margin-bottom: 14px;
}

.page-hero .hero-lead {
  font-size: 1.12rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin-bottom: 32px;
}

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

.hero-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 0.87rem;
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.72);
  padding: 8px 16px;
  border-radius: var(--radius-full);
}

.hero-note i {
  color: var(--color-accent);
}

/* Proof strip */
.proof-strip {
  padding: 38px 0;
  border-bottom: 1px solid var(--color-border);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.proof-item {
  text-align: center;
  padding: 6px 10px;
}

.proof-item strong {
  display: block;
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.proof-item span {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: inline-block;
  border-top: 1px solid var(--color-border);
  margin-top: 9px;
  padding-top: 8px;
  width: 100%;
}

/* Feature rows */
.feature-area {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 72px 0 24px;
}

.feature-area .container {
  max-width: 1160px;
}

.section-title-block {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 44px;
}

.section-title-block h2 {
  max-width: 620px;
  margin: 0;
}

.section-title-block .title-note {
  max-width: 420px;
  color: var(--color-text-secondary);
  font-size: 0.96rem;
  line-height: 1.7;
  margin: 0;
}

.feature-row {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 70px;
  padding: 52px 0;
  border-top: 1px solid var(--color-border);
}

.feature-row:first-of-type {
  border-top: 0;
}

.feature-row:nth-of-type(even) .feature-media {
  order: 2;
}

.feature-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  aspect-ratio: 4 / 3;
  background: #eef3f8;
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s ease;
}

.feature-row:hover .feature-media img {
  transform: scale(1.035);
}

.feature-copy {
  padding: 10px 0;
}

.feature-index {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  margin-bottom: 20px;
}

.feature-copy h3 {
  font-size: 1.5rem;
  margin-bottom: 14px;
}

.feature-copy p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.feature-points {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.feature-points li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  color: var(--color-text);
  font-size: 0.96rem;
  line-height: 1.65;
}

.feature-points li i {
  color: var(--color-accent);
  font-size: 0.95rem;
  margin-top: 4px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

/* Notice panel */
.notice-panel {
  padding: 72px 0 92px;
}

.notice-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 240px 1fr;
  overflow: hidden;
}

.notice-card-left {
  background: linear-gradient(145deg, rgba(31, 95, 183, 0.06), rgba(14, 159, 139, 0.08));
  padding: 38px 26px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
}

.notice-card-left i {
  font-size: 2.2rem;
  color: var(--color-primary);
}

.notice-card-left h3 {
  font-size: 1.24rem;
  margin: 0;
}

.notice-card-left p {
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  margin: 0;
}

.notice-list {
  padding: 38px 42px;
}

.notice-list ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 28px;
}

.notice-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

.notice-list li i {
  color: var(--color-primary);
  margin-top: 5px;
  font-size: 1rem;
  flex-shrink: 0;
}

.notice-link-group {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--color-text-secondary);
  font-size: 0.94rem;
}

.notice-link-group a {
  color: var(--color-primary);
  font-weight: 600;
}

.notice-link-group a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Progress demo */
.progress-demo {
  background: #edeff3;
  padding: 90px 0;
  border-radius: var(--radius-lg);
}

.progress-panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px 50px;
  max-width: 900px;
  margin: 0 auto;
}

.progress-panel-top {
  display: flex;
  align-items: center;
  gap: 26px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 26px;
  margin-bottom: 26px;
  flex-wrap: wrap;
}

.progress-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  padding: 6px 15px;
  font-size: 0.85rem;
  font-weight: 600;
}

.progress-summary {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-left: auto;
}

.panel-meter {
  margin-top: 12px;
}

.panel-meter .meter-title {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.meter-bar {
  height: 9px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: 7px;
}

.meter-fill {
  height: 100%;
  width: 66%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.task-list {
  display: grid;
  gap: 14px;
}

.task-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fafcff;
  padding: 20px 22px 18px;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.task-item:hover {
  border-color: rgba(31, 95, 183, 0.22);
  box-shadow: 0 6px 20px rgba(30, 42, 58, 0.05);
}

.task-head {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.task-name {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 650;
  font-size: 1rem;
}

.task-name i {
  color: var(--color-primary);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.2;
  padding: 5px 12px;
}

.badge-wait {
  background: #f2f4f8;
  color: #65758a;
}

.badge-doing {
  background: rgba(217, 119, 6, 0.11);
  color: #c05c16;
}

.badge-done {
  background: rgba(47, 156, 95, 0.12);
  color: #227a49;
}

.task-extra {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.task-progress {
  margin-top: 18px;
}

.task-progress .meter-bar {
  height: 7px;
  margin-top: 5px;
}

.task-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

.demo-note {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.94rem;
  margin-top: 24px;
}

.demo-note i {
  color: var(--color-accent);
  margin-right: 6px;
}

/* Reward preview */
.reward-preview {
  padding: 90px 0;
}

.reward-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.reward-copy h2 {
  margin-bottom: 16px;
}

.reward-copy > p {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.reward-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 20px;
  margin: 26px 0 30px;
}

.reward-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #fafcff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  font-size: 0.94rem;
  color: var(--color-text);
}

.reward-list li i {
  color: var(--color-accent);
  margin-top: 3px;
}

.reward-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  aspect-ratio: 4 / 3;
  background: #dde8f5;
}

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

.reward-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(20, 40, 63, 0.18) 10%, transparent 58%);
  pointer-events: none;
}

/* CTA band */
.cta-band {
  background: #1e3c5d;
  border-radius: 0;
  padding: 78px 0;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: rgba(31, 95, 183, 0.36);
  top: -230px;
  right: -130px;
}

.cta-band::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(14, 159, 139, 0.12);
  bottom: -190px;
  left: -70px;
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
}

.cta-inner h2 {
  color: #ffffff;
  font-size: clamp(1.65rem, 3vw, 2.4rem);
  margin-bottom: 12px;
}

.cta-inner p {
  color: rgba(235, 244, 255, 0.82);
  font-size: 1.02rem;
  line-height: 1.8;
  margin-bottom: 26px;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.cta-buttons .btn-white {
  background: #ffffff;
  color: var(--color-primary);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.cta-buttons .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.22);
}

.cta-buttons .btn-ghost-white {
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff;
}

.cta-buttons .btn-ghost-white:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* FAQ */
.faq-section {
  padding: 90px 0 80px;
  background: var(--color-surface);
}

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

.faq-item {
  border: 1px solid var(--color-border);
  background: #fbfcff;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.faq-item.open {
  box-shadow: 0 6px 20px rgba(30, 42, 58, 0.06);
  border-color: rgba(31, 95, 183, 0.24);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 22px 26px;
  cursor: pointer;
  font-size: 1.03rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 0.85rem;
  transition: transform 0.3s ease, background 0.2s ease, color 0.2s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(135deg);
  background: var(--color-primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.3s ease;
  opacity: 0;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  opacity: 1;
  padding: 0 26px 24px;
}

.faq-answer p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.97rem;
  line-height: 1.85;
}

/* Footer */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  border-top: 3px solid rgba(31, 95, 183, 0.95);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding: 72px 0 56px;
  width: min(1140px, 88%);
  margin-inline: auto;
}

.footer-brand .brand {
  color: #fff;
  margin-bottom: 14px;
  font-size: 1.3rem;
}

.footer-brand .brand i {
  color: #6cb2f1;
}

.footer-brand p {
  font-size: 0.94rem;
  line-height: 1.85;
  color: #b9cbde;
  max-width: 460px;
  margin: 15px 0 0;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin: 0 0 22px;
  font-weight: 650;
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 4px;
}

.footer-col ul {
  display: grid;
  gap: 11px;
}

.footer-col a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #b9cbde;
  font-size: 0.93rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col a i {
  color: #6cb2f1;
  font-size: 0.8rem;
}

.footer-contact {
  color: #b9cbde;
  font-size: 0.92rem;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 0;
}

.footer-contact i {
  color: #6cb2f1;
  width: 18px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(219, 235, 255, 0.12);
  padding: 20px 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  width: min(1140px, 88%);
  margin-inline: auto;
}

.footer-bottom span {
  color: #9fb2c6;
}

.footer-bottom .domain {
  font-weight: 500;
  letter-spacing: 0.03em;
  color: #7f95aa;
}

@media (max-width: 1023px) {
  .section {
    padding: 78px 0;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 56px 0 44px;
  }

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

  .footer-brand p {
    max-width: 100%;
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 42px 0;
  }

  .feature-row:nth-of-type(even) .feature-media {
    order: 0;
  }

  .feature-row:nth-of-type(even) .feature-copy {
    order: 1;
  }

  .feature-media {
    width: 100%;
  }

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

  .reward-media {
    order: -1;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }

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

  .container,
  .footer-top,
  .footer-bottom {
    width: 92%;
  }

  .site-header {
    padding: 9px 10px 0;
  }

  .nav-wrap {
    width: 100%;
    border-radius: 28px;
    gap: 0;
    padding: 9px 10px 9px 16px;
    flex-wrap: wrap;
  }

  .brand {
    font-size: 1.08rem;
  }

  .brand i {
    font-size: 1.16rem;
  }

  .brand em {
    display: none;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    width: 100%;
    margin-top: 10px;
    padding: 6px 6px 14px;
    max-height: 55vh;
    overflow-y: auto;
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu .nav-link {
    border-radius: 14px;
    width: 100%;
    justify-content: flex-start;
    padding: 11px 15px;
  }

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

  .nav-menu .btn-accent {
    margin-top: 10px;
    justify-content: center;
    padding: 12px 20px;
  }

  .breadcrumb {
    padding-top: 22px;
  }

  .page-hero {
    padding: 48px 0 64px;
  }

  .page-hero-inner {
    padding-right: 0;
  }

  .page-hero h1 {
    font-size: 2rem;
  }

  .page-hero .hero-lead {
    font-size: 1rem;
  }

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

  .proof-item strong {
    font-size: 1.55rem;
  }

  .feature-area {
    border-radius: var(--radius-md);
    padding-top: 48px;
  }

  .section-title-block {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 28px;
  }

  .section-title-block .title-note {
    font-size: 0.93rem;
  }

  .feature-row {
    gap: 20px;
    padding: 34px 0;
  }

  .feature-copy h3 {
    font-size: 1.3rem;
  }

  .feature-points li {
    font-size: 0.93rem;
  }

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

  .notice-card-left {
    display: block;
    padding: 24px 24px 6px;
  }

  .notice-card-left p {
    margin-bottom: 10px;
  }

  .notice-list {
    padding: 16px 22px 24px;
  }

  .notice-list ul,
  .reward-list {
    grid-template-columns: 1fr;
  }

  .progress-demo {
    padding: 56px 0;
    border-radius: 0;
  }

  .progress-panel {
    padding: 28px 20px;
    border-radius: var(--radius-md);
  }

  .progress-panel-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .progress-summary {
    margin-left: 0;
  }

  .task-head {
    gap: 10px;
  }

  .task-extra {
    margin-left: 0;
  }

  .cta-band {
    padding: 56px 0;
  }

  .cta-buttons .btn {
    width: 100%;
    min-width: 0;
  }

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

  .faq-question {
    padding: 17px 16px;
    font-size: 0.98rem;
  }

  .faq-item.open .faq-answer {
    padding: 0 16px 20px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 44px 0 34px;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}