/* roulang page: index */
:root{
    --color-primary:#0D9F58;
    --color-primary-dark:#077E43;
    --color-accent:#C7F431;
    --color-ink:#11251A;
    --color-bg:#F6F9F4;
    --color-surface:#FFFFFF;
    --color-line:#E1E9E1;
    --color-text:#26372C;
    --color-text-soft:#55675B;
    --color-text-faint:#85978A;
    --color-warn:#FF7A1A;
    --radius:16px;
    --radius-sm:10px;
    --shadow:0 2px 16px rgba(20,40,30,0.03);
    --shadow-hover:0 8px 30px rgba(20,50,25,0.10);
    --font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    --transition:0.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
    font-family:var(--font-family);
    font-size:16px;
    line-height:1.85;
    color:var(--color-text);
    background:var(--color-bg);
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--color-primary);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--color-primary-dark);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
.container{max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px;}
.section-title{font-size:32px;line-height:44px;font-weight:800;color:var(--color-ink);letter-spacing:-0.01em;margin-bottom:12px;}
.section-subtitle{font-size:16px;line-height:1.85;color:var(--color-text-soft);margin-top:8px;}
.badge{display:inline-block;background:var(--color-primary);color:#fff;font-size:12px;font-weight:600;letter-spacing:0.08em;padding:4px 10px;border-radius:6px;line-height:1.4;}
.badge-accent{background:var(--color-accent);color:var(--color-ink);font-weight:700;border-radius:10px;}
.badge-warn{background:var(--color-warn);color:#fff;font-weight:600;border-radius:6px;}
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 28px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;line-height:1;transition:all var(--transition);white-space:nowrap;}
.btn-primary{background:var(--color-primary);color:#fff;}
.btn-primary:hover{background:var(--color-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px rgba(13,159,88,0.25);}
.btn-accent{background:var(--color-accent);color:var(--color-ink);font-weight:700;}
.btn-accent:hover{filter:brightness(1.05);color:var(--color-ink);transform:translateY(-1px);box-shadow:0 6px 24px rgba(199,244,49,0.30);}
.btn-accent:active{transform:scale(0.98);}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.5);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,0.1);color:#fff;border-color:rgba(255,255,255,0.8);}
.btn-dark{background:var(--color-ink);color:#fff;}
.btn-dark:hover{background:#1d3d2c;color:var(--color-accent);}
.btn-outline{background:transparent;border:1px solid var(--color-primary);color:var(--color-primary);}
.btn-outline:hover{background:rgba(13,159,88,0.08);color:var(--color-primary-dark);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--color-primary);}
.text-link .arrow{transition:transform var(--transition);}
.text-link:hover .arrow{transform:translateX(4px);color:var(--color-primary-dark);}

/* 导航 */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    height:70px;
    background:rgba(17,37,26,0.35);
    backdrop-filter:blur(20px) saturate(150%);
    -webkit-backdrop-filter:blur(20px) saturate(150%);
    border-bottom:1px solid rgba(255,255,255,0.14);
    transition:all var(--transition);
}
.site-header.scrolled{
    background:rgba(255,255,255,0.96);
    border-bottom:1px solid var(--color-line);
    box-shadow:0 4px 20px rgba(20,40,30,0.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px;max-width:1280px;margin:0 auto;padding:0 24px;}
.logo{font-size:22px;font-weight:900;color:#fff;letter-spacing:-0.01em;transition:color var(--transition);}
.logo span{color:var(--color-accent);}
.site-header.scrolled .logo{color:var(--color-ink);}
.main-nav{display:flex;align-items:center;gap:32px;}
.nav-link{font-size:14px;font-weight:500;color:rgba(255,255,255,0.85);position:relative;padding-bottom:4px;transition:color var(--transition);}
.nav-link::after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--color-accent);transition:width var(--transition);}
.nav-link:hover{color:#fff;}
.nav-link.active::after{width:100%;}
.site-header.scrolled .nav-link{color:var(--color-text-soft);}
.site-header.scrolled .nav-link:hover{color:var(--color-primary);}
.site-header.scrolled .nav-link.active{color:var(--color-primary);}
.header-actions{display:flex;align-items:center;gap:12px;}
.search-btn{width:40px;height:40px;border:1px solid rgba(255,255,255,0.5);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;transition:all var(--transition);}
.search-btn:hover{background:rgba(255,255,255,0.1);}
.site-header.scrolled .search-btn{border-color:var(--color-line);color:var(--color-ink);}
.site-header.scrolled .search-btn:hover{background:var(--color-bg);}
.hamburger{display:none;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-sm);transition:background var(--transition);}
.hamburger span{display:block;width:20px;height:2px;background:var(--color-ink);border-radius:2px;transition:all 0.3s;}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.active span:nth-child(2){opacity:0;}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.site-header.scrolled .hamburger span{background:var(--color-ink);}
.hamburger.active span{background:var(--color-ink)!important;}
.mobile-menu{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:999;
    background:#fff;
    display:flex;flex-direction:column;justify-content:center;align-items:center;gap:0;
    opacity:0;visibility:hidden;transition:all 0.4s ease;
}
.mobile-menu.open{opacity:1;visibility:visible;}
.mobile-link{font-size:18px;font-weight:600;color:var(--color-ink);padding:12px 24px;line-height:48px;transition:color var(--transition);}
.mobile-link:hover{color:var(--color-primary);}
.mobile-link.active{color:var(--color-primary);font-weight:700;}

/* Hero */
.hero{
    min-height:90vh;
    background:var(--color-ink);
    position:relative;
    display:flex;align-items:center;
    overflow:hidden;
    padding-top:140px;padding-bottom:80px;
}
.hero::before{
    content:"";
    position:absolute;inset:0;
    background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    opacity:0.35;
}
.hero::after{
    content:"";
    position:absolute;top:0;left:0;right:0;bottom:0;
    background:radial-gradient(circle at 20% 0%, rgba(199,244,49,0.12), transparent 60%);
    pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-content{display:flex;flex-direction:column;justify-content:center;}
.hero-title{
    font-size:52px;line-height:1.2;font-weight:900;color:#fff;letter-spacing:-0.01em;
    margin-bottom:24px;
}
.hero-title .highlight{
    color:var(--color-accent);
    position:relative;
    display:inline-block;
}
.hero-title .highlight::after{
    content:"";position:absolute;bottom:4px;left:0;right:0;height:6px;
    background:var(--color-accent);opacity:0.3;border-radius:4px;z-index:-1;
}
.hero-subtitle{
    font-size:19px;line-height:1.7;color:rgba(255,255,255,0.78);
    max-width:520px;margin-bottom:36px;
}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px;}
.hero-visual{
    position:relative;
    display:flex;align-items:center;justify-content:center;
    min-height:400px;
}
.hero-visual .deco-circle{
    width:340px;height:340px;border-radius:50%;
    border:2px solid rgba(199,244,49,0.25);
    position:relative;
    animation:float 6s ease-in-out infinite;
}
.hero-visual .deco-circle::before{
    content:"";position:absolute;inset:40px;
    border-radius:50%;
    border:1px dashed rgba(199,244,49,0.4);
    animation:spin 20s linear infinite;
}
.hero-visual .deco-circle::after{
    content:"";position:absolute;
    width:14px;height:14px;background:var(--color-accent);
    border-radius:50%;top:30px;right:50px;
    box-shadow:0 0 20px rgba(199,244,49,0.6);
}
.hero-visual .deco-bar{
    position:absolute;width:80px;height:80px;
    background:rgba(199,244,49,0.15);
    transform:rotate(45deg);
    border-radius:12px;
    bottom:40px;left:15%;
}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-16px);}}
@keyframes spin{from{transform:rotate(0deg);}to{transform:rotate(360deg);}}
.hero-stats{
    display:flex;gap:48px;flex-wrap:wrap;
    border-top:1px solid rgba(255,255,255,0.12);
    padding-top:32px;margin-top:8px;
}
.stat-number{font-size:32px;font-weight:900;color:var(--color-accent);line-height:1.2;}
.stat-label{font-size:14px;color:rgba(255,255,255,0.7);margin-top:2px;}

/* 功能 */
.features{background:var(--color-bg);}
.f-card{
    background:var(--color-surface);
    border:1px solid var(--color-line);
    border-radius:var(--radius);
    padding:28px;
    box-shadow:var(--shadow);
    transition:all var(--transition);
    height:100%;
    display:flex;flex-direction:column;
}
.f-card:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-hover);
    border-color:var(--color-primary);
}
.f-icon{
    width:44px;height:44px;border-radius:12px;
    background:rgba(13,159,88,0.1);
    display:flex;align-items:center;justify-content:center;
    margin-bottom:18px;
}
.f-icon svg{width:22px;height:22px;stroke:var(--color-primary);}
.f-title{font-size:20px;font-weight:700;color:var(--color-ink);margin-bottom:10px;}
.f-desc{font-size:14px;line-height:1.7;color:var(--color-text-soft);margin-bottom:14px;}
.f-point{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--color-text);margin-top:4px;}
.f-point svg{width:16px;height:16px;stroke:var(--color-primary);flex-shrink:0;}
.f-card-dark{
    background:var(--color-ink);
    border:1px solid rgba(255,255,255,0.08);
    color:#fff;
    position:relative;
    overflow:hidden;
}
.f-card-dark::before{
    content:"";position:absolute;top:0;right:0;
    width:120px;height:120px;
    background:radial-gradient(circle, rgba(199,244,49,0.18), transparent 70%);
    border-radius:50%;
}
.f-card-dark .f-icon{background:rgba(199,244,49,0.15);}
.f-card-dark .f-icon svg{stroke:var(--color-accent);}
.f-card-dark .f-title{color:#fff;}
.f-card-dark .f-desc{color:rgba(255,255,255,0.7);}
.f-card-dark .f-point{color:rgba(255,255,255,0.9);}
.f-card-dark .f-point svg{stroke:var(--color-accent);}
.f-card-dark:hover{border-color:var(--color-accent);background:#163324;}

/* 场景 */
.scenes{background:var(--color-surface);}
.scene-row{
    display:flex;align-items:center;
    gap:56px;margin-bottom:80px;
}
.scene-row:last-child{margin-bottom:0;}
.scene-row.reversed{flex-direction:row-reverse;}
.scene-media{
    flex:1;
    border-radius:var(--radius);
    overflow:hidden;
    border:1px solid var(--color-line);
    position:relative;
}
.scene-media img{
    width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;
    transition:transform 0.5s ease;
}
.scene-media:hover img{transform:scale(1.02);}
.scene-content{flex:1;}
.scene-tag{
    display:inline-block;background:rgba(13,159,88,0.10);
    color:var(--color-primary);font-size:12px;font-weight:600;
    padding:6px 12px;border-radius:6px;letter-spacing:0.05em;
    margin-bottom:16px;
}
.scene-title{font-size:24px;font-weight:700;color:var(--color-ink);margin-bottom:14px;}
.scene-desc{font-size:15px;line-height:1.8;color:var(--color-text-soft);margin-bottom:18px;}
.scene-list{list-style:none;padding:0;margin-bottom:20px;}
.scene-list li{
    position:relative;padding-left:22px;
    font-size:14px;line-height:1.9;color:var(--color-text);
}
.scene-list li::before{
    content:"";position:absolute;left:2px;top:10px;
    width:8px;height:8px;border-radius:50%;
    background:var(--color-primary);
}

/* 案例 */
.cases{
    background:var(--color-ink);
    position:relative;
    overflow:hidden;
}
.cases::before{
    content:"";position:absolute;top:0;left:0;right:0;
    height:80px;
    background:linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg) 33%, transparent 33%);
}
.cases::after{
    content:"";position:absolute;bottom:0;left:0;right:0;height:80px;
    background:linear-gradient(315deg, var(--color-bg) 0%, var(--color-bg) 33%, transparent 33%);
}
.cases .section-title{color:#fff;}
.cases .section-subtitle{color:rgba(255,255,255,0.7);}
.case-card{
    background:rgba(255,255,255,0.05);
    border:1px solid rgba(255,255,255,0.10);
    border-radius:var(--radius);
    padding:32px 36px;
    display:flex;align-items:center;justify-content:space-between;
    gap:32px;margin-bottom:24px;
    transition:all var(--transition);
}
.case-card:hover{background:rgba(255,255,255,0.08);transform:translateY(-2px);}
.case-info{flex:1;}
.case-name{font-size:18px;font-weight:600;color:rgba(255,255,255,0.85);margin-bottom:8px;}
.case-desc{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.65);max-width:70%;}
.case-result{flex-shrink:0;text-align:right;}
.case-result-num{font-size:26px;font-weight:900;color:var(--color-accent);line-height:1.2;}
.case-result-label{font-size:12px;color:rgba(255,255,255,0.6);}

/* 价格 */
.pricing{background:var(--color-bg);}
.price-card{
    background:var(--color-surface);
    border:1px solid var(--color-line);
    border-radius:var(--radius);
    padding:32px;
    display:flex;flex-direction:column;
    transition:all var(--transition);
    height:100%;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--color-primary);}
.price-card-featured{
    background:var(--color-ink);
    border:2px solid var(--color-accent);
    color:#fff;
    position:relative;
    padding-top:48px;
}
.price-card-featured:hover{border-color:var(--color-accent);box-shadow:0 12px 40px rgba(17,37,26,0.25);}
.price-recommend{
    position:absolute;top:-14px;left:50%;transform:translateX(-50%);
    background:var(--color-accent);color:var(--color-ink);
    font-size:12px;font-weight:700;
    padding:4px 16px;border-radius:10px;
    white-space:nowrap;
}
.price-name{font-size:14px;font-weight:600;color:var(--color-text-soft);margin-bottom:12px;}
.price-card-featured .price-name{color:rgba(255,255,255,0.7);}
.price-number{font-size:40px;font-weight:800;line-height:1.1;color:var(--color-ink);}
.price-number .symbol{font-size:16px;vertical-align:super;margin-right:2px;}
.price-card-featured .price-number{color:var(--color-accent);}
.price-period{font-size:12px;color:var(--color-text-faint);margin-bottom:20px;}
.price-card-featured .price-period{color:rgba(255,255,255,0.5);}
.price-list{list-style:none;padding:0;margin:0 0 24px;flex:1;}
.price-list li{
    display:flex;align-items:flex-start;gap:8px;
    font-size:14px;line-height:1.7;color:var(--color-text);
    padding:5px 0;
}
.price-card-featured .price-list li{color:rgba(255,255,255,0.8);}
.price-list li svg{width:16px;height:16px;stroke:var(--color-primary);flex-shrink:0;margin-top:3px;}
.price-card-featured .price-list li svg{stroke:var(--color-accent);}
.price-btn{margin-top:auto;}
.price-card-featured .price-btn{background:var(--color-accent);color:var(--color-ink);}
.price-card-featured .price-btn:hover{filter:brightness(1.05);color:var(--color-ink);}

/* 资讯 */
.news{background:var(--color-surface);}
.news-card{
    border:1px solid var(--color-line);
    border-radius:var(--radius);
    overflow:hidden;
    background:#fff;
    display:flex;flex-direction:column;
    transition:all var(--transition);
    height:100%;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--color-primary);}
.news-cover{position:relative;overflow:hidden;aspect-ratio:16/9;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-badge-cat{
    position:absolute;top:12px;left:12px;
    background:var(--color-primary);color:#fff;
    font-size:12px;font-weight:600;
    padding:4px 10px;border-radius:6px;
    z-index:2;
}
.news-body{padding:18px;display:flex;flex-direction:column;flex:1;}
.news-title{font-size:16px;font-weight:700;line-height:1.45;color:var(--color-ink);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px;}
.news-card:hover .news-title{color:var(--color-primary);}
.news-excerpt{font-size:14px;line-height:1.6;color:var(--color-text-faint);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px;flex:1;}
.news-meta{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--color-text-faint);}
.empty-state{
    border:2px dashed var(--color-line);
    border-radius:var(--radius);
    padding:60px 24px;
    text-align:center;
    color:var(--color-text-faint);
    font-size:15px;
    width:100%;
}

/* FAQ */
.faq{background:var(--color-bg);}
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
    background:var(--color-surface);
    border:1px solid var(--color-line);
    border-radius:12px;
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color var(--transition);
}
.faq-item:hover{background:rgba(13,159,88,0.02);border-color:var(--color-primary);}
.faq-question{
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 24px;
    font-size:15px;font-weight:600;color:var(--color-ink);
    text-align:left;width:100%;
}
.faq-icon{
    width:20px;height:20px;position:relative;flex-shrink:0;
    margin-left:12px;
}
.faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--color-primary);
    border-radius:2px;transition:transform 0.3s ease;
}
.faq-icon::before{top:9px;left:2px;width:16px;height:2px;}
.faq-icon::after{top:2px;left:9px;width:2px;height:16px;}
.faq-item.open .faq-icon::before{transform:rotate(180deg);}
.faq-item.open .faq-icon::after{transform:rotate(180deg);opacity:0;}
.faq-answer{
    max-height:0;overflow:hidden;
    transition:max-height 0.3s ease;
}
.faq-answer-inner{
    padding:0 24px 20px;
    font-size:14px;line-height:1.8;color:var(--color-text-soft);
}

/* CTA */
.cta-section{background:var(--color-bg);padding-bottom:96px;}
.cta-card{
    background:linear-gradient(135deg, #C7F431, #A3E635);
    border-radius:24px;
    padding:56px 64px;
    display:flex;align-items:center;justify-content:space-between;
    gap:48px;flex-wrap:wrap;
}
.cta-content{flex:1;min-width:280px;}
.cta-title{font-size:28px;font-weight:800;color:var(--color-ink);margin-bottom:10px;}
.cta-desc{font-size:15px;color:rgba(17,37,26,0.75);line-height:1.7;}
.cta-form{flex:1;min-width:260px;display:flex;flex-direction:column;gap:12px;}
.cta-form input{
    height:48px;border:none;border-radius:var(--radius-sm);
    padding:0 14px;font-size:15px;
    background:#fff;color:var(--color-text);
    outline:none;transition:all var(--transition);
}
.cta-form input:focus{box-shadow:0 0 0 3px rgba(13,159,88,0.2);}
.cta-form .btn-dark{height:48px;border-radius:var(--radius-sm);font-size:15px;font-weight:700;}

/* 页脚 */
.site-footer{
    background:var(--color-ink);
    border-top:4px solid var(--color-accent);
    padding-top:64px;
}
.footer-wrap{padding-bottom:48px;}
.footer-brand-name{font-size:22px;font-weight:900;color:#fff;margin-bottom:12px;}
.footer-brand-name span{color:var(--color-accent);}
.footer-brand-desc{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.6);max-width:280px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:0.03em;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,0.65);transition:color var(--transition);}
.footer-links a:hover{color:#fff;}
.footer-contact{list-style:none;padding:0;margin:0;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,0.65);margin-bottom:10px;line-height:1.6;}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.08);
    padding:24px 0;
    text-align:center;
    font-size:12px;
    color:rgba(255,255,255,0.40);
}
.footer-bottom a{color:rgba(255,255,255,0.55);}
.footer-bottom a:hover{color:#fff;}

/* 响应式 */
@media screen and (max-width:1024px){
    .section{padding:72px 0;}
    .hero-title{font-size:40px;}
    .scene-row{gap:32px;}
    .footer-brand-desc{max-width:100%;}
}
@media screen and (max-width:768px){
    .section{padding:64px 0;}
    .hero{min-height:auto;padding-top:120px;padding-bottom:60px;}
    .hero-title{font-size:32px;line-height:1.25;}
    .hero-subtitle{font-size:17px;}
    .hero-visual{min-height:240px;margin-top:24px;}
    .hero-visual .deco-circle{width:220px;height:220px;}
    .hero-stats{gap:32px;}
    .scene-row{flex-direction:column!important;gap:24px;margin-bottom:56px;}
    .scene-media{flex:auto;width:100%;}
    .scene-content{flex:auto;width:100%;}
    .case-card{flex-direction:column;text-align:left;padding:24px;}
    .case-result{text-align:left;margin-top:8px;}
    .cta-card{padding:36px 28px;flex-direction:column;gap:24px;}
    .footer-bottom{padding:16px 0;font-size:11px;}
}
@media screen and (max-width:640px){
    .section{padding:48px 0;}
    .section-title{font-size:24px;line-height:32px;}
    .main-nav{display:none;}
    .search-btn{display:none;}
    .hamburger{display:flex;}
    .header-actions .btn-accent{display:none;}
    .hero-title{font-size:30px;}
    .hero-stats{gap:20px;flex-direction:column;}
    .cta-card{padding:28px 20px;}
    .cta-title{font-size:22px;}
    .price-card{padding:24px;}
    .case-card{padding:20px;}
    .case-desc{max-width:100%;}
}

/* roulang page: category1 */
:root {
    --color-primary: #0D9F58;
    --color-primary-dark: #077E43;
    --color-accent: #C7F431;
    --color-ink: #11251A;
    --color-bg: #F6F9F4;
    --color-surface: #FFFFFF;
    --color-line: #E1E9E1;
    --color-text: #26372C;
    --color-text-soft: #55675B;
    --color-text-faint: #85978A;
    --color-warn: #FF7A1A;
    --font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --container-width: 1280px;
    --radius-lg: 16px;
    --radius-md: 10px;
    --shadow-sm: 0 2px 16px rgba(20, 40, 30, 0.03);
    --shadow-md: 0 8px 30px rgba(20, 50, 25, 0.10);
    --shadow-header: 0 4px 20px rgba(20, 40, 30, 0.06);
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

ul, ol {
    list-style: none;
}

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

/* ===== 按钮系统 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 28px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    line-height: 1;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(13, 159, 88, 0.25);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-ink);
    font-weight: 700;
}

.btn-accent:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(199, 244, 49, 0.35);
    color: var(--color-ink);
}

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

.btn-outline-glass {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #fff;
}

.btn-outline-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.btn-sm {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
}

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

.btn-dark:hover {
    background: #1a3a2a;
    color: var(--color-accent);
    transform: translateY(-1px);
}

.btn:focus-visible {
    outline: 2px solid rgba(13, 159, 88, 0.40);
    outline-offset: 2px;
}

/* ===== 导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(255, 255, 255, 0.10);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    z-index: 1000;
    transition: all 0.3s ease;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow-header);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.01em;
    transition: color 0.3s ease;
    flex-shrink: 0;
}

.logo span {
    color: var(--color-accent);
    margin-left: 2px;
}

.site-header.scrolled .logo {
    color: var(--color-ink);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    display: inline-block;
    color: rgba(255, 255, 255, 0.90);
    font-size: 14px;
    font-weight: 500;
    padding: 6px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.nav-link:hover {
    color: #fff;
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-link.active {
    color: #fff;
}

.nav-link.active::after {
    transform: scaleX(1);
}

.site-header.scrolled .nav-link {
    color: var(--color-ink);
}

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

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

.search-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #fff;
}

.search-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.site-header.scrolled .search-btn {
    border-color: var(--color-line);
    color: var(--color-ink);
}

.site-header.scrolled .search-btn:hover {
    border-color: var(--color-primary);
    background: rgba(13, 159, 88, 0.05);
}

.search-btn svg {
    width: 18px;
    height: 18px;
}

.hamburger {
    display: none;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border-radius: var(--radius-md);
    transition: background 0.3s ease;
}

.hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.site-header.scrolled .hamburger span {
    background: var(--color-ink);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端菜单 */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 32px 24px;
    box-shadow: 0 12px 30px rgba(20, 40, 30, 0.08);
    border-bottom: 1px solid var(--color-line);
    z-index: 999;
    transform: translateY(-120%);
    transition: transform 0.4s ease;
}

.mobile-menu.open {
    transform: translateY(0);
}

.mobile-link {
    display: block;
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    padding: 12px 0;
    border-bottom: 1px solid var(--color-line);
    transition: color 0.2s ease;
}

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

.mobile-link.active {
    color: var(--color-primary);
    font-weight: 700;
}

/* ===== 分类页头部 ===== */
.cat-hero {
    background: var(--color-surface);
    padding: 140px 0 64px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--color-line);
}

.cat-hero::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -60px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(13, 159, 88, 0.08), transparent 65%);
    pointer-events: none;
}

.cat-hero::after {
    content: "";
    position: absolute;
    bottom: -40px;
    left: 15%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(199, 244, 49, 0.12), transparent 65%);
    pointer-events: none;
}

.cat-hero-content {
    position: relative;
    z-index: 1;
}

.cat-hero h1 {
    font-size: 36px;
    font-weight: 900;
    color: var(--color-ink);
    letter-spacing: -0.01em;
    margin-bottom: 16px;
    line-height: 1.3;
}

.cat-hero .hero-desc {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-soft);
    max-width: 560px;
    margin-bottom: 20px;
}

.back-home {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 500;
    transition: gap 0.2s ease;
}

.back-home:hover {
    gap: 10px;
}

.back-home svg {
    width: 16px;
    height: 16px;
}

/* ===== 区块间距 ===== */
.section-block {
    padding: 96px 0;
}

.section-block-alt {
    background: var(--color-bg);
    padding: 96px 0;
}

/* ===== 区块A：大图 + 文字卡 ===== */
.block-a-card {
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    padding: 32px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.block-a-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.block-a-card .card-badge {
    display: inline-block;
    background: rgba(13, 159, 88, 0.10);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border-radius: 6px;
    margin-bottom: 16px;
    width: fit-content;
}

.block-a-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-ink);
    line-height: 1.4;
    margin-bottom: 12px;
}

.block-a-card p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-soft);
    margin-bottom: 20px;
}

.block-a-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    min-height: 380px;
    position: relative;
}

.block-a-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.block-a-img:hover img {
    transform: scale(1.02);
}

/* ===== 区块B：交替图文 ===== */
.block-b-row {
    margin-bottom: 64px;
}

.block-b-row:last-child {
    margin-bottom: 0;
}

.block-b-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px 0;
}

.block-b-text .card-badge {
    display: inline-block;
    background: rgba(13, 159, 88, 0.10);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border-radius: 6px;
    margin-bottom: 16px;
    width: fit-content;
}

.block-b-text h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-ink);
    line-height: 1.4;
    margin-bottom: 14px;
}

.block-b-text .desc {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-soft);
    margin-bottom: 20px;
}

.block-b-list {
    margin-bottom: 18px;
}

.block-b-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--color-text);
    padding: 6px 0;
}

.block-b-list li::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--color-primary);
    flex-shrink: 0;
}

.block-b-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.block-b-img img {
    width: 100%;
    height: 100%;
    min-height: 300px;
    object-fit: cover;
    transition: transform 0.5s ease;
    border-radius: var(--radius-lg);
}

.block-b-img:hover img {
    transform: scale(1.03);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: gap 0.2s ease;
}

.text-link:hover {
    gap: 8px;
    color: var(--color-primary-dark);
}

.text-link svg {
    width: 16px;
    height: 16px;
}

/* ===== 区块C：数据统计条 ===== */
.stats-section {
    background: var(--color-primary);
    padding: 64px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    pointer-events: none;
}

.stats-grid {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 24px 32px;
    position: relative;
    flex: 1;
    min-width: 160px;
}

.stat-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: 0;
    top: 20%;
    height: 60%;
    width: 1px;
    background: rgba(255, 255, 255, 0.20);
}

.stat-number {
    font-size: 32px;
    font-weight: 900;
    color: var(--color-accent);
    line-height: 1.2;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 400;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 96px 0;
    background: var(--color-surface);
}

.section-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--color-ink);
    text-align: center;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 15px;
    color: var(--color-text-soft);
    text-align: center;
    margin-bottom: 48px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

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

.faq-item.open {
    border-color: var(--color-primary);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 24px;
    background: var(--color-surface);
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-ink);
    transition: background 0.2s ease;
}

.faq-question:hover {
    background: rgba(13, 159, 88, 0.04);
}

.faq-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    position: relative;
    transition: transform 0.3s ease;
}

.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    background: var(--color-primary);
    border-radius: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-icon::before {
    width: 14px;
    height: 2px;
}

.faq-icon::after {
    width: 2px;
    height: 14px;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-content-inner {
    padding: 0 24px 20px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-soft);
}

/* ===== CTA ===== */
.cta-section {
    padding: 64px 0 96px;
    background: var(--color-bg);
}

.cta-card {
    background: linear-gradient(135deg, #C7F431, #A3E635);
    border-radius: 24px;
    padding: 56px 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: "";
    position: absolute;
    bottom: -60px;
    right: 10%;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    pointer-events: none;
}

.cta-text h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-ink);
    margin-bottom: 8px;
    line-height: 1.3;
}

.cta-text p {
    font-size: 15px;
    color: rgba(17, 37, 26, 0.80);
    line-height: 1.7;
}

.cta-action {
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--color-ink);
    border-top: 4px solid var(--color-accent);
    padding: 64px 0 24px;
    color: rgba(255, 255, 255, 0.65);
}

.footer-wrap {
    margin-bottom: 40px;
}

.footer-brand-name {
    font-size: 22px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

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

.footer-brand-desc {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.55);
    max-width: 260px;
}

.footer-title {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.footer-links {
    margin: 0;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    transition: color 0.2s ease;
}

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

.footer-contact {
    margin: 0;
}

.footer-contact li {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 8px;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.40);
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
    .block-a-img {
        min-height: 300px;
    }
    
    .block-b-img img {
        min-height: 240px;
    }
    
    .cta-card {
        padding: 40px 32px;
        flex-direction: column;
        text-align: center;
    }
    
    .cta-action {
        margin-top: 8px;
    }
    
    .section-block,
    .section-block-alt,
    .faq-section {
        padding: 64px 0;
    }
    
    .stats-grid {
        gap: 16px;
    }
}

@media screen and (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .header-actions .btn-accent {
        display: none;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .cat-hero {
        padding: 120px 0 48px;
    }
    
    .cat-hero h1 {
        font-size: 30px;
    }
    
    .block-a-card {
        padding: 24px;
        margin-top: 24px;
    }
    
    .block-b-row {
        margin-bottom: 48px;
    }
    
    .block-b-img {
        margin-bottom: 24px;
    }
    
    .block-b-row:last-child .block-b-img {
        margin-bottom: 0;
    }
    
    .block-b-row:last-child .block-b-img {
        order: -1;
    }
    
    .stat-item {
        min-width: 45%;
    }
    
    .stat-item:nth-child(2)::after {
        display: none;
    }
    
    .stat-item:nth-child(3)::after {
        display: none;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .faq-question {
        font-size: 14px;
        padding: 16px 18px;
    }
    
    .faq-content-inner {
        padding: 0 18px 16px;
    }
    
    .cta-card {
        padding: 32px 24px;
    }
    
    .cta-text h2 {
        font-size: 22px;
    }
    
    .site-footer {
        padding: 48px 0 24px;
    }
}

@media screen and (max-width: 520px) {
    .container {
        padding: 0 16px;
    }
    
    .cat-hero h1 {
        font-size: 26px;
    }
    
    .hero-desc {
        font-size: 14px;
    }
    
    .block-a-img {
        min-height: 220px;
    }
    
    .block-b-img img {
        min-height: 200px;
    }
    
    .stat-number {
        font-size: 26px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .stats-section {
        padding: 48px 0;
    }
    
    .btn {
        height: 44px;
        padding: 0 22px;
        font-size: 14px;
    }
}

/* roulang page: article */
:root {
    --color-primary: #0D9F58;
    --color-primary-dark: #077E43;
    --color-accent: #C7F431;
    --color-ink: #11251A;
    --color-bg: #F6F9F4;
    --color-surface: #FFFFFF;
    --color-line: #E1E9E1;
    --color-text: #26372C;
    --color-text-soft: #55675B;
    --color-text-faint: #85978A;
    --color-warn: #FF7A1A;
    --radius-card: 16px;
    --radius-btn: 10px;
    --shadow-card: 0 2px 16px rgba(20,40,30,0.03);
    --shadow-hover: 0 8px 30px rgba(20,50,25,0.10);
    --transition-base: all 0.25s ease;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html,
body {
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-base);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 70px;
    background: rgba(17, 37, 26, 0.25);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 4px 20px rgba(20, 40, 30, 0.06);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    position: relative;
}
.brand {
    font-size: 22px;
    font-weight: 900;
    color: #ffffff;
    letter-spacing: -0.01em;
    line-height: 1;
    white-space: nowrap;
}
.brand span {
    color: var(--color-accent);
}
.site-header.scrolled .brand {
    color: var(--color-ink);
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    margin: 0 auto;
}
.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.92);
    padding: 8px 2px;
    position: relative;
    letter-spacing: 0.02em;
    transition: color 0.25s ease;
    white-space: nowrap;
}
.site-header.scrolled .nav-link {
    color: var(--color-ink);
}
.nav-link:hover {
    color: var(--color-accent);
}
.site-header.scrolled .nav-link:hover {
    color: var(--color-primary);
}
.nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-accent);
}
.site-header.scrolled .nav-link.active::after {
    background: var(--color-primary);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: none;
    background: transparent;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    border-radius: 10px;
    transition: background 0.2s;
}
.nav-toggle:hover {
    background: rgba(13, 159, 88, 0.08);
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s;
}
.site-header.scrolled .nav-toggle span {
    background: var(--color-ink);
}
.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-btn);
    height: 48px;
    padding: 0 28px;
    font-weight: 700;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(13, 159, 88, 0.25);
}
.btn-accent {
    background: var(--color-accent);
    color: var(--color-ink);
}
.btn-accent:hover {
    filter: brightness(1.06);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(199, 244, 49, 0.35);
}
.btn-glass {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #ffffff;
}
.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
}
.btn-sm {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
    border-radius: 8px;
}

/* ===== Page Banner ===== */
.page-banner {
    position: relative;
    background-size: cover;
    background-position: center;
    background-color: var(--color-ink);
    padding: 140px 0 64px;
    overflow: hidden;
}
.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, rgba(199, 244, 49, 0.12), transparent 55%),
        rgba(17, 37, 26, 0.6);
}
.page-banner-inner {
    position: relative;
    z-index: 1;
}
.page-banner-label {
    display: inline-block;
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    padding: 6px 16px;
    backdrop-filter: blur(4px);
}

/* ===== Breadcrumb ===== */
.breadcrumb-section {
    background: #ffffff;
    border-bottom: 1px solid var(--color-line);
    padding: 18px 0;
}
.breadcrumb {
    font-size: 13px;
    color: var(--color-text-faint);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.breadcrumb a {
    color: var(--color-text-faint);
}
.breadcrumb a:hover {
    color: var(--color-primary);
}
.breadcrumb .sep {
    color: var(--color-line);
    font-size: 12px;
}
.breadcrumb .current {
    color: var(--color-text-soft);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 300px;
}

/* ===== Article Layout ===== */
.article-page {
    padding: 64px 0 96px;
}
.article-main {
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 40px 44px;
    box-shadow: var(--shadow-card);
}
.article-category {
    display: inline-block;
    background: var(--color-primary);
    color: #ffffff;
    border-radius: 6px;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.article-title {
    font-size: 34px;
    line-height: 1.3;
    font-weight: 900;
    color: var(--color-ink);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    word-break: break-word;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--color-text-faint);
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.article-meta .dot {
    color: var(--color-line);
    font-size: 10px;
}
.article-excerpt {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-soft);
    margin-bottom: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}
.article-hero-image {
    margin-bottom: 24px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-line);
}
.article-hero-image img {
    width: 100%;
    height: auto;
    transition: transform 0.4s ease;
}
.article-hero-image:hover img {
    transform: scale(1.02);
}
.article-divider {
    border: none;
    border-top: 1px solid var(--color-line);
    margin: 24px 0;
}

/* ===== Article Content ===== */
.article-content {
    font-size: 17px;
    line-height: 1.9;
    color: var(--color-text);
    word-break: break-word;
}
.article-content p {
    margin: 0 0 1.5em;
}
.article-content h2 {
    font-size: 26px;
    font-weight: 800;
    line-height: 1.4;
    margin: 2.2em 0 1em;
    padding-left: 14px;
    border-left: 4px solid var(--color-primary);
    color: var(--color-ink);
}
.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.4;
    margin: 1.8em 0 1em;
    color: var(--color-ink);
}
.article-content ul {
    list-style: none;
    padding-left: 1.5em;
    margin: 0 0 1.5em;
}
.article-content ul li {
    position: relative;
    margin-bottom: 0.6em;
}
.article-content ul li::before {
    content: "";
    position: absolute;
    left: -1.3em;
    top: 0.65em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
}
.article-content ol {
    padding-left: 1.5em;
    margin: 0 0 1.5em;
}
.article-content blockquote {
    border-left: 4px solid var(--color-primary);
    background: var(--color-bg);
    border-radius: 8px;
    padding: 20px 24px;
    font-size: 16px;
    color: var(--color-text-soft);
    margin: 1.5em 0;
}
.article-content img {
    max-width: 100%;
    border-radius: 12px;
    border: 1px solid var(--color-line);
    margin: 1em 0;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 14px;
    background: var(--color-surface);
}
.article-content th {
    background: rgba(13, 159, 88, 0.06);
    font-weight: 600;
    text-align: left;
    border: 1px solid var(--color-line);
    padding: 12px;
}
.article-content td {
    border: 1px solid var(--color-line);
    padding: 12px;
}
.article-content pre {
    background: var(--color-ink);
    color: #A3E635;
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.7;
    margin: 1.5em 0;
}
.article-content code {
    background: rgba(13, 159, 88, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--color-primary-dark);
}
.article-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* ===== Article Footer ===== */
.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    border-top: 1px solid var(--color-line);
    margin-top: 32px;
    flex-wrap: wrap;
    gap: 16px;
}
.article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.tag {
    background: rgba(13, 159, 88, 0.08);
    color: var(--color-primary);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
}
.tag:hover {
    background: rgba(13, 159, 88, 0.15);
    color: var(--color-primary-dark);
}
.article-share {
    display: flex;
    align-items: center;
    gap: 8px;
}
.share-label {
    font-size: 13px;
    color: var(--color-text-faint);
}
.share-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--color-line);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--color-text-soft);
    background: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
}
.share-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(13, 159, 88, 0.04);
    transform: translateY(-2px);
}

/* ===== Article Prev / Next ===== */
.article-nav {
    display: flex;
    gap: 24px;
    margin-top: 24px;
}
.article-nav-prev,
.article-nav-next {
    flex: 1;
    background: var(--color-bg);
    border-radius: 12px;
    padding: 16px 20px;
    font-size: 14px;
    color: var(--color-text-soft);
    border: 1px solid transparent;
    transition: var(--transition-base);
}
.article-nav-prev:hover,
.article-nav-next:hover {
    border-color: var(--color-primary);
    background: #fff;
}
.article-nav .muted {
    color: var(--color-text-faint);
}
.article-nav-next {
    text-align: right;
}

/* ===== Back Link ===== */
.article-back {
    text-align: center;
    margin-top: 32px;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.25s ease;
}
.back-link:hover {
    gap: 12px;
    background: rgba(13, 159, 88, 0.06);
}

/* ===== Not Found ===== */
.not-found-card {
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 60px 40px;
    text-align: center;
    box-shadow: var(--shadow-card);
}
.not-found-card h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-ink);
    margin-bottom: 12px;
}
.not-found-card p {
    color: var(--color-text-soft);
    margin-bottom: 24px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-ink);
    border-top: 4px solid var(--color-accent);
    padding: 64px 0 24px;
    position: relative;
}
.footer-wrap {
    row-gap: 24px;
}
.footer-brand-name {
    font-size: 22px;
    font-weight: 900;
    color: #ffffff;
    letter-spacing: -0.01em;
}
.footer-brand-name span {
    color: var(--color-accent);
}
.footer-brand-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 12px;
    line-height: 1.7;
    max-width: 280px;
}
.footer-title {
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.03em;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    line-height: 1.7;
}
.footer-links a:hover {
    color: #ffffff;
    padding-left: 4px;
}
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    line-height: 1.7;
}
.footer-contact li {
    margin-bottom: 10px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 40px;
    padding-top: 24px;
    text-align: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .article-title {
        font-size: 30px;
    }
    .article-main {
        padding: 32px;
    }
}
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    .main-nav {
        gap: 20px;
    }
    .article-page {
        padding: 48px 0 72px;
    }
    .article-main {
        padding: 28px 24px;
    }
    .article-nav {
        flex-direction: column;
        gap: 12px;
    }
    .article-nav-next {
        text-align: left;
    }
    .page-banner {
        padding: 120px 0 48px;
    }
}
@media (max-width: 640px) {
    .site-header {
        height: 64px;
    }
    .header-inner {
        height: 64px;
    }
    .nav-actions .btn-sm {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 32px 24px;
        transform: translateY(-120%);
        transition: transform 0.35s ease;
        z-index: 999;
        margin: 0;
        overflow-y: auto;
        box-shadow: 0 20px 40px rgba(17, 37, 26, 0.15);
    }
    .main-nav.open {
        transform: translateY(0);
    }
    .nav-link {
        font-size: 18px;
        padding: 16px 0;
        border-bottom: 1px solid var(--color-line);
        width: 100%;
        color: var(--color-ink);
    }
    .nav-link:hover {
        color: var(--color-primary);
        padding-left: 6px;
    }
    .nav-link.active::after {
        display: none;
    }
    .nav-link.active {
        color: var(--color-primary);
        font-weight: 700;
    }
    .article-main {
        padding: 24px 20px;
        border-radius: 12px;
    }
    .article-title {
        font-size: 26px;
    }
    .article-excerpt {
        font-size: 15px;
    }
    .article-content {
        font-size: 16px;
    }
    .article-content h2 {
        font-size: 22px;
    }
    .article-content h3 {
        font-size: 18px;
    }
    .article-footer {
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-wrap .cell {
        margin-bottom: 8px;
    }
}