/* roulang page: index */
:root{--primary:#0b1220;--primary-light:#1c2a3a;--accent:#e94560;--accent-dark:#c9304b;--gold:#f5a623;--cyan:#38bdf8;--bg-body:#f6f7f9;--bg-dark:#0b1220;--bg-light:#ffffff;--text-main:#1c2a3a;--text-muted:#64748b;--text-light:#94a3b8;--border-light:#e2e8f0;--r-lg:24px;--r-md:16px;--r-sm:10px;--shadow-sm:0 2px 12px rgba(11,18,32,.06);--shadow-md:0 8px 30px rgba(11,18,32,.1);--shadow-lg:0 24px 60px rgba(11,18,32,.16);--transition:.3s all cubic-bezier(.4,0,.2,1)}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--bg-body);color:var(--text-main);line-height:1.7;font-size:16px}
a{text-decoration:none;color:inherit;transition:var(--transition)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto}
.container-fluid{max-width:1440px;width:100%;margin:0 auto}
.container{max-width:1280px}
.btn{font-weight:600;border-radius:var(--r-sm);padding:.7rem 1.6rem;transition:var(--transition);border:none}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn:focus{outline:3px solid rgba(233,69,96,.3);outline-offset:2px}
.btn-accent{background:linear-gradient(135deg,var(--accent),#ff6b81);color:#fff;box-shadow:0 4px 20px rgba(233,69,96,.35)}
.btn-accent:hover{color:#fff;background:linear-gradient(135deg,var(--accent-dark),var(--accent));box-shadow:0 8px 28px rgba(233,69,96,.4)}
.btn-outline-light{border:2px solid rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.15);color:#fff;border-color:#fff}
.btn-lg{padding:1rem 2.2rem;font-size:1.05rem;border-radius:14px}
.section-padding{padding:6rem 0}
.section-header{margin-bottom:3rem;text-align:center}
.section-header .section-tag{display:inline-block;background:rgba(233,69,96,.1);color:var(--accent);padding:.35rem 1rem;border-radius:50px;font-size:.85rem;font-weight:600;margin-bottom:.8rem;letter-spacing:1px}
.section-header h2{font-size:2.2rem;font-weight:800;color:var(--text-main);margin-bottom:.8rem;letter-spacing:-0.5px}
.section-header p{color:var(--text-muted);max-width:600px;margin:0 auto;font-size:1.05rem}
.section-header.light h2{color:#fff}
.section-header.light p{color:rgba(255,255,255,.7)}
/* 导航 */
.custom-navbar{background:rgba(11,18,32,.95);backdrop-filter:blur(16px);padding:1rem 0;box-shadow:0 4px 30px rgba(0,0,0,.2);z-index:1000}
.custom-navbar .navbar-brand{font-weight:800;font-size:1.45rem;color:#fff;display:flex;align-items:center;gap:.6rem}
.custom-navbar .navbar-brand .brand-icon{width:44px;height:44px;background:linear-gradient(135deg,var(--accent),var(--gold));border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#fff;box-shadow:0 4px 16px rgba(233,69,96,.4)}
.custom-navbar .nav-link{color:rgba(255,255,255,.85);font-weight:500;padding:.6rem 1.1rem !important;margin:0 .2rem;border-radius:8px;font-size:.95rem;transition:var(--transition)}
.custom-navbar .nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.custom-navbar .nav-link.active{color:#fff;background:linear-gradient(135deg,rgba(233,69,96,.9),rgba(245,166,35,.8));box-shadow:0 4px 16px rgba(233,69,96,.3)}
.custom-navbar .navbar-toggler{border:none;color:#fff}
.custom-navbar .navbar-toggler:focus{box-shadow:none}
@media(max-width:992px){.custom-navbar .nav-link{margin:.3rem 0}}
/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:8rem 0 6rem;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,32,.82) 0%,rgba(11,18,32,.55) 50%,rgba(11,18,32,.9) 100%);z-index:1}
.hero-content{position:relative;z-index:2;max-width:860px}
.hero-badge{display:inline-block;background:rgba(245,166,35,.15);border:1px solid rgba(245,166,35,.4);color:var(--gold);padding:.5rem 1.5rem;border-radius:50px;font-size:.9rem;font-weight:600;letter-spacing:2px;margin-bottom:1.5rem;backdrop-filter:blur(8px)}
.hero h1{font-size:3.6rem;font-weight:900;color:#fff;letter-spacing:-1px;line-height:1.2;margin-bottom:1.2rem;text-shadow:0 4px 30px rgba(0,0,0,.3)}
.hero p{font-size:1.25rem;color:rgba(255,255,255,.85);line-height:1.7;margin-bottom:2.5rem;max-width:680px;margin-left:auto;margin-right:auto}
.hero-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;gap:2.5rem;justify-content:center;margin-top:3.5rem;flex-wrap:wrap}
.hero-stats .stat{text-align:center}
.hero-stats .stat .num{font-size:2rem;font-weight:800;color:#fff;display:block;line-height:1.2}
.hero-stats .stat .label{color:rgba(255,255,255,.6);font-size:.9rem;letter-spacing:1px}
@media(max-width:768px){.hero h1{font-size:2.4rem}.hero p{font-size:1.05rem}.hero{padding:7rem 0 4rem}}
@media(max-width:520px){.hero h1{font-size:1.9rem}.hero-buttons .btn{padding:.6rem 1.4rem;font-size:.9rem;width:100%;max-width:280px}}
/* About 核心说明 */
.about-section{background:var(--bg-light);padding:6rem 0}
.about-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-media img{width:100%;height:100%;object-fit:cover;min-height:400px;display:block}
.about-media::after{content:"";position:absolute;inset:0;background:linear-gradient(45deg,rgba(233,69,96,.2),transparent);pointer-events:none}
.about-badge{position:absolute;bottom:1.5rem;right:1.5rem;background:rgba(11,18,32,.85);color:#fff;padding:.7rem 1.2rem;border-radius:12px;font-size:.85rem;font-weight:600;backdrop-filter:blur(8px);z-index:2}
.about-list{list-style:none;padding:0;margin:1.5rem 0 0}
.about-list li{display:flex;gap:.8rem;align-items:flex-start;padding:.55rem 0;color:var(--text-muted)}
.about-list li i{color:var(--accent);margin-top:.3rem;font-size:1rem}
.about-text h2{font-size:2rem;font-weight:800;margin:1rem 0 1.2rem}
.about-text .lead{color:var(--text-muted);font-size:1.1rem;line-height:1.8}
@media(max-width:768px){.about-media{margin-bottom:2rem}}
/* 分类入口 */
.category-section{background:var(--bg-dark);padding:6rem 0;position:relative;overflow:hidden}
.category-section::before{content:"";position:absolute;top:-200px;right:-200px;width:500px;height:500px;background:radial-gradient(circle,rgba(233,69,96,.15),transparent 70%);pointer-events:none}
.category-card{background:linear-gradient(145deg,var(--primary-light),var(--primary));border-radius:var(--r-lg);overflow:hidden;transition:var(--transition);height:100%;border:1px solid rgba(255,255,255,.06);position:relative}
.category-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(233,69,96,.3)}
.category-card .card-img{height:200px;overflow:hidden;position:relative}
.category-card .card-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.category-card:hover .card-img img{transform:scale(1.05)}
.category-card .card-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(11,18,32,.8))}
.category-card .card-body{padding:1.8rem}
.category-card .card-body h3{color:#fff;font-size:1.3rem;font-weight:700;margin-bottom:.6rem}
.category-card .card-body p{color:rgba(255,255,255,.7);font-size:.95rem;margin-bottom:1.2rem}
.category-card .card-link{color:var(--gold);font-weight:600;font-size:.9rem;display:inline-flex;align-items:center;gap:.4rem}
.category-card .card-link i{transition:var(--transition)}
.category-card:hover .card-link i{transform:translateX(5px)}
@media(max-width:768px){.category-card{margin-bottom:1.5rem}}
/* 最新信息 */
.latest-section{background:var(--bg-light);padding:6rem 0}
.news-item{display:flex;flex-direction:column;background:var(--bg-light);border:1px solid var(--border-light);border-radius:var(--r-md);padding:1.8rem;height:100%;transition:var(--transition);box-shadow:var(--shadow-sm)}
.news-item:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.news-cat{display:inline-block;background:rgba(233,69,96,.1);color:var(--accent);font-size:.8rem;font-weight:600;padding:.3rem .9rem;border-radius:50px;margin-bottom:1rem;align-self:flex-start}
.news-item h4{font-size:1.1rem;font-weight:700;margin-bottom:.7rem;color:var(--text-main);line-height:1.5}
.news-item p{color:var(--text-muted);font-size:.92rem;margin-bottom:1.2rem;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-date{font-size:.82rem;color:var(--text-light);margin-top:auto;display:flex;align-items:center;gap:.4rem}
.news-date i{font-size:.75rem}
.empty-message{background:var(--bg-light);border:1px dashed var(--border-light);border-radius:var(--r-md);padding:3rem;text-align:center;color:var(--text-muted)}
/* 流程板块 */
.steps-section{background:var(--bg-dark);padding:6rem 0;position:relative}
.steps-section::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(245,166,35,.4),transparent)}
.step-item{text-align:center;padding:2.5rem 1.5rem;position:relative}
.step-num{width:64px;height:64px;margin:0 auto 1.5rem;background:linear-gradient(135deg,var(--accent),var(--gold));border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:800;color:#fff;box-shadow:0 8px 24px rgba(233,69,96,.35)}
.step-item h3{color:#fff;font-size:1.2rem;font-weight:700;margin-bottom:.6rem}
.step-item p{color:rgba(255,255,255,.65);font-size:.92rem}
@media(max-width:768px){.step-item{margin-bottom:2rem}}
/* 特色内容 */
.feature-section{background:var(--bg-light);padding:6rem 0}
.feature-card{background:var(--bg-light);border:1px solid var(--border-light);border-radius:var(--r-lg);overflow:hidden;transition:var(--transition);height:100%;box-shadow:var(--shadow-sm)}
.feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:rgba(233,69,96,.2)}
.feature-card .feature-img{height:220px;overflow:hidden}
.feature-card .feature-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.feature-card:hover .feature-img img{transform:scale(1.06)}
.feature-card .feature-body{padding:1.8rem}
.feature-card .feature-body h3{font-size:1.2rem;font-weight:700;margin-bottom:.6rem}
.feature-card .feature-body p{color:var(--text-muted);font-size:.92rem;margin-bottom:0}
.feature-tag{display:inline-block;background:rgba(245,166,35,.12);color:#b8860b;font-size:.8rem;font-weight:600;padding:.25rem .8rem;border-radius:50px;margin-bottom:.8rem}
/* 数据统计 */
.stat-card{text-align:center;background:var(--bg-light);border:1px solid var(--border-light);border-radius:var(--r-lg);padding:2.5rem 1.5rem;box-shadow:var(--shadow-sm);transition:var(--transition);height:100%}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.stat-card .stat-num{font-size:2.6rem;font-weight:900;background:linear-gradient(135deg,var(--accent),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-card .stat-label{color:var(--text-muted);font-size:.95rem;margin-top:.4rem}
/* FAQ */
.faq-section{background:var(--bg-light);padding:6rem 0}
.faq-accordion{max-width:800px;margin:0 auto}
.faq-accordion .accordion-item{border:1px solid var(--border-light);border-radius:var(--r-md) !important;margin-bottom:1rem;overflow:hidden;box-shadow:var(--shadow-sm);background:var(--bg-light)}
.faq-accordion .accordion-button{font-weight:700;color:var(--text-main);padding:1.2rem 1.5rem;background:transparent;font-size:1.05rem;border:none}
.faq-accordion .accordion-button:not(.collapsed){background:rgba(233,69,96,.04);color:var(--accent);box-shadow:none}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:rgba(233,69,96,.3)}
.faq-accordion .accordion-button::after{background-size:1rem}
.faq-accordion .accordion-body{color:var(--text-muted);padding:1.2rem 1.5rem 1.5rem;line-height:1.8;font-size:.95rem}
/* CTA */
.cta-section{position:relative;padding:6rem 0;background:linear-gradient(135deg,var(--primary),var(--primary-light));text-align:center;overflow:hidden}
.cta-section::before{content:"";position:absolute;top:-100px;left:-100px;width:300px;height:300px;background:radial-gradient(circle,rgba(233,69,96,.3),transparent 70%)}
.cta-section::after{content:"";position:absolute;bottom:-100px;right:-100px;width:260px;height:260px;background:radial-gradient(circle,rgba(245,166,35,.25),transparent 70%)}
.cta-content{position:relative;z-index:2}
.cta-content h2{font-size:2.4rem;font-weight:800;color:#fff;margin-bottom:1rem;letter-spacing:-1px}
.cta-content p{color:rgba(255,255,255,.7);font-size:1.1rem;margin-bottom:2rem}
/* 页脚 */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:4rem 0 0;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(233,69,96,.6),rgba(245,166,35,.6),transparent)}
.footer-brand{font-size:1.4rem;font-weight:800;color:#fff;display:flex;align-items:center;gap:.6rem;margin-bottom:1.2rem}
.footer-brand .brand-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--accent),var(--gold));border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1rem;color:#fff}
.footer h5{color:#fff;font-size:1rem;font-weight:700;margin-bottom:1.2rem;letter-spacing:1px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:.7rem}
.footer-links a{color:rgba(255,255,255,.65);font-size:.9rem;display:inline-flex;align-items:center;gap:.5rem}
.footer-links a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:1.5rem 0;margin-top:3rem;text-align:center;font-size:.88rem;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:var(--gold)}
@media(max-width:768px){.footer{padding-top:3rem}}
/* 通用 */
.text-accent{color:var(--accent)}
.text-gold{color:var(--gold)}
.bg-dark-section{background:var(--bg-dark)}
/* 内页Banner */
.page-banner{position:relative;padding:8rem 0 4rem;text-align:center;overflow:hidden}
.page-banner .banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.page-banner .banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,32,.75),rgba(11,18,32,.88));z-index:1}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{color:#fff;font-size:2.6rem;font-weight:900;letter-spacing:-1px;margin-bottom:.8rem;text-shadow:0 4px 20px rgba(0,0,0,.3)}
.page-banner p{color:rgba(255,255,255,.75);max-width:640px;margin:0 auto;font-size:1.1rem}
.page-banner .banner-crumb{display:inline-block;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);padding:.4rem 1rem;border-radius:50px;font-size:.85rem;color:rgba(255,255,255,.8);margin-bottom:1.5rem}
.page-banner .banner-crumb i{margin:0 .4rem;font-size:.7rem}
/* 文章详情 */
.article-section{background:var(--bg-light);padding:4rem 0}
.article-body{max-width:860px;margin:0 auto}
.article-body h1{font-size:2.2rem;font-weight:800;line-height:1.4;margin-bottom:1.2rem}
.article-meta{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border-light)}
.article-meta .meta-item{color:var(--text-muted);font-size:.9rem;display:flex;align-items:center;gap:.5rem}
.category-badge{background:rgba(233,69,96,.1);color:var(--accent);padding:.3rem .9rem;border-radius:50px;font-size:.85rem;font-weight:600}
.article-content{font-size:1.05rem;line-height:2;color:var(--text-main)}
.article-content h2{font-size:1.6rem;font-weight:700;margin:2rem 0 1rem}
.article-content h3{font-size:1.3rem;font-weight:700;margin:1.8rem 0 .8rem}
.article-content p{margin-bottom:1.2rem}
.article-content img{border-radius:var(--r-md);margin:1.5rem 0;width:100%}
.article-content ul,.article-content ol{margin:1.5rem 0;padding-left:1.5rem}
.article-content li{margin-bottom:.6rem}
.not-found{text-align:center;padding:5rem 0}
.not-found h1{font-size:2.4rem;color:var(--text-main);margin-bottom:1rem}
.not-found p{color:var(--text-muted);margin-bottom:2rem}
/* 相关推荐 */
.related-section{background:var(--bg-dark);padding:4rem 0}
.related-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:var(--r-md);padding:1.5rem;height:100%;transition:var(--transition)}
.related-card:hover{transform:translateY(-4px);border-color:rgba(245,166,35,.4);background:rgba(255,255,255,.08)}
.related-card h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:.5rem}
.related-card p{color:rgba(255,255,255,.6);font-size:.85rem;margin-bottom:0}
.related-card .related-date{color:rgba(255,255,255,.4);font-size:.78rem;margin-top:1rem;display:block}
/* 分类页 */
.category-banner{padding:8rem 0 5rem}
.category-intro{background:var(--bg-light);padding:4rem 0}
.category-intro-card{background:var(--bg-dark);border-radius:var(--r-lg);padding:3rem;position:relative;overflow:hidden;color:#fff}
.category-intro-card::before{content:"";position:absolute;top:-80px;right:-80px;width:250px;height:250px;background:radial-gradient(circle,rgba(233,69,96,.3),transparent 70%)}
.category-intro-card h2{font-size:1.8rem;font-weight:800;margin-bottom:1rem;position:relative;z-index:2}
.category-intro-card p{color:rgba(255,255,255,.75);position:relative;z-index:2;line-height:1.8}
.category-list-section{background:var(--bg-light);padding:4rem 0}
.list-card{display:flex;gap:1.5rem;align-items:center;background:var(--bg-light);border:1px solid var(--border-light);border-radius:var(--r-md);padding:1.5rem;transition:var(--transition);box-shadow:var(--shadow-sm);margin-bottom:1.2rem}
.list-card:hover{border-color:rgba(233,69,96,.3);box-shadow:var(--shadow-md);transform:translateX(4px)}
.list-card .list-icon{width:56px;height:56px;background:linear-gradient(135deg,var(--accent),var(--gold));border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.3rem;flex-shrink:0}
.list-card .list-content{flex:1}
.list-card .list-content h4{font-size:1.1rem;font-weight:700;margin-bottom:.3rem}
.list-card .list-content p{color:var(--text-muted);font-size:.9rem;margin:0}
.list-card .list-arrow{color:var(--text-light);font-size:1.1rem;transition:var(--transition)}
.list-card:hover .list-arrow{color:var(--accent);transform:translateX(4px)}
@media(max-width:768px){.list-card{flex-direction:column;align-items:flex-start;gap:1rem}}
/* 图册网格 */
.gallery-section{background:var(--bg-dark);padding:5rem 0}
.gallery-item{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--r-md);overflow:hidden;transition:var(--transition);height:100%}
.gallery-item:hover{transform:scale(1.02);border-color:rgba(245,166,35,.4)}
.gallery-item img{width:100%;height:180px;object-fit:cover}
.gallery-item .gallery-body{padding:1rem 1.2rem}
.gallery-item .gallery-body h5{color:#fff;font-size:1rem;font-weight:600;margin:0}

/* roulang page: category1 */
:root {
            --primary: #ff6a3d;
            --primary-dark: #e84a1c;
            --primary-light: #ff9a7a;
            --secondary: #1e2a4a;
            --secondary-light: #2c3e6b;
            --accent: #ffb03a;
            --accent-light: #ffd580;
            --dark: #0d1321;
            --dark-2: #131c31;
            --dark-3: #1a2440;
            --text-main: #e8ecf4;
            --text-muted: #8a95ad;
            --text-dim: #5c6b8a;
            --border: rgba(255, 255, 255, 0.09);
            --border-light: rgba(255, 255, 255, 0.15);
            --surface: rgba(255, 255, 255, 0.04);
            --surface-hover: rgba(255, 255, 255, 0.08);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.4);
            --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.3);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.2);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-scale: 1;
            --space-section: 5.5rem;
            --space-section-sm: 3.5rem;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, -apple-system, sans-serif;
            background-color: var(--dark);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 1rem;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0; left: 0;
            width: 100%; height: 100%;
            background:
                radial-gradient(ellipse at 20% 0%, rgba(255, 106, 61, 0.12) 0%, transparent 55%),
                radial-gradient(ellipse at 90% 10%, rgba(255, 176, 58, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 100%, rgba(30, 42, 74, 0.4) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        img { max-width: 100%; height: auto; border-radius: var(--radius-md); }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: #fff;
        }

        .container { position: relative; z-index: 1; max-width: 1200px; }

        /* ============ 导航 ============ */
        .custom-navbar {
            background: rgba(13, 19, 33, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            padding: 0.85rem 0;
            transition: var(--transition);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .custom-navbar .navbar-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            letter-spacing: -0.02em;
        }

        .custom-navbar .navbar-brand:hover { color: var(--primary-light); }

        .custom-navbar .brand-icon {
            width: 38px; height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            color: #fff;
            font-size: 1rem;
            margin-right: 10px;
            box-shadow: 0 4px 16px rgba(255, 106, 61, 0.4);
        }

        .custom-navbar .navbar-nav .nav-link {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            margin: 0 0.15rem;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }

        .custom-navbar .navbar-nav .nav-link:hover {
            color: #fff;
            background: var(--surface-hover);
        }

        .custom-navbar .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(255, 106, 61, 0.12);
            font-weight: 600;
        }

        .custom-navbar .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border: none;
            color: #fff;
            font-weight: 600;
            border-radius: 10px;
            padding: 0.6rem 1.4rem;
            box-shadow: 0 6px 20px rgba(255, 106, 61, 0.35);
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .btn-accent:hover, .btn-accent:focus {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(255, 106, 61, 0.5);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--accent));
        }

        .btn-outline-light {
            border: 1px solid var(--border-light);
            color: var(--text-main);
            border-radius: 10px;
            padding: 0.55rem 1.2rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.3);
            color: #fff;
        }

        .custom-navbar .navbar-toggler {
            border: 1px solid var(--border-light);
            padding: 0.4rem 0.6rem;
        }

        .custom-navbar .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(255, 106, 61, 0.3); }

        @media (max-width: 991.98px) {
            .custom-navbar .navbar-collapse {
                background: rgba(13, 19, 33, 0.98);
                padding: 1.2rem;
                border-radius: var(--radius-md);
                margin-top: 0.8rem;
                border: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
            }
            .custom-navbar .navbar-nav .nav-link { padding: 0.7rem 0.8rem !important; }
        }

        /* ============ Hero 分类横幅 ============ */
        .category-hero {
            position: relative;
            padding: 9.5rem 0 5.5rem;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(13, 19, 33, 0.92) 0%, rgba(13, 19, 33, 0.75) 50%, rgba(13, 19, 33, 0.55) 100%);
            z-index: 1;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0;
            width: 100%; height: 120px;
            background: linear-gradient(0deg, var(--dark) 0%, transparent 100%);
            z-index: 1;
        }

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

        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.35rem 1rem;
            background: rgba(255, 106, 61, 0.18);
            border: 1px solid rgba(255, 106, 61, 0.4);
            border-radius: 30px;
            color: var(--primary-light);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 1.2rem;
        }

        .category-hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.1rem;
            color: #fff;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .category-hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .category-hero .lead {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 2rem;
        }

        .category-hero .hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.4rem 1rem;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border);
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--text-main);
        }

        .category-hero .hero-meta .meta-item i { color: var(--accent); }

        @media (max-width: 767.98px) {
            .category-hero { padding: 7.5rem 0 4rem; min-height: 360px; }
        }

        /* ============ 分类内容卡片 ============ */
        .section-light {
            background: var(--dark-2);
            padding: var(--space-section) 0;
            position: relative;
        }

        .section-transparent {
            background: transparent;
            padding: var(--space-section) 0;
            position: relative;
        }

        .section-header {
            margin-bottom: 2.8rem;
        }

        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 0.6rem;
        }

        .section-header .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            display: inline-block;
        }

        .section-header h2 {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 0.7rem;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 640px;
            line-height: 1.8;
        }

        /* 分类卡片组 */
        .guide-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0;
            width: 100%; height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            background: var(--surface-hover);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }

        .guide-card:hover::before { opacity: 1; }

        .guide-card .card-icon {
            width: 48px; height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(255, 106, 61, 0.2), rgba(255, 176, 58, 0.14));
            border: 1px solid rgba(255, 106, 61, 0.3);
            border-radius: 12px;
            color: var(--primary-light);
            font-size: 1.15rem;
            margin-bottom: 1rem;
            transition: var(--transition);
        }

        .guide-card:hover .card-icon {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 8px 20px rgba(255, 106, 61, 0.35);
            transform: scale(1.05);
        }

        .guide-card h4 {
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: #fff;
        }

        .guide-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.1rem;
        }

        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--primary-light);
            font-weight: 600;
            transition: var(--transition);
        }

        .guide-card .card-link:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* 封面图卡片 */
        .content-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }

        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }

        .content-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 180px;
        }

        .content-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .content-card:hover .card-img-wrap img { transform: scale(1.05); }

        .content-card .card-img-wrap::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0;
            width: 100%; height: 60%;
            background: linear-gradient(0deg, rgba(13, 19, 33, 0.85) 0%, transparent 100%);
            pointer-events: none;
        }

        .content-card .card-img-wrap .badge-float {
            position: absolute;
            top: 12px; left: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            padding: 0.25rem 0.9rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(255, 106, 61, 0.35);
        }

        .content-card .card-img-wrap .play-time {
            position: absolute;
            bottom: 10px; right: 12px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.75rem;
            z-index: 2;
            background: rgba(0, 0, 0, 0.4);
            padding: 0.15rem 0.6rem;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }

        .content-card .card-body {
            padding: 1.25rem 1.4rem 1.4rem;
        }

        .content-card h5 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 0.45rem;
            color: #fff;
            line-height: 1.45;
        }

        .content-card h5 a { color: #fff; }
        .content-card h5 a:hover { color: var(--primary-light); }

        .content-card .card-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0.9rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card .card-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.9rem;
            border-top: 1px solid var(--border);
        }

        .content-card .card-bottom .tag {
            font-size: 0.75rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.06);
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            border: 1px solid var(--border);
        }

        .content-card .card-bottom .read-more {
            font-size: 0.82rem;
            color: var(--primary-light);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .content-card .card-bottom .read-more:hover { color: var(--accent); gap: 7px; }

        /* 新手指南步骤 */
        .steps-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover fixed;
            position: relative;
        }

        .steps-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 19, 33, 0.93);
            backdrop-filter: blur(3px);
        }

        .steps-section .container { position: relative; z-index: 1; }

        .step-item {
            text-align: center;
            padding: 2rem 1.4rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            height: 100%;
            transition: var(--transition);
            position: relative;
        }

        .step-item:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }

        .step-item .step-num {
            width: 52px; height: 52px;
            margin: 0 auto 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 50%;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 106, 61, 0.4);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: #fff;
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 信息列表 */
        .info-list-section {
            background: var(--dark-2);
            padding: var(--space-section) 0;
        }

        .info-list-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            padding: 1.4rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            transition: var(--transition);
        }

        .info-list-item:hover {
            background: var(--surface-hover);
            border-color: var(--border-light);
            transform: translateX(4px);
        }

        .info-list-item .list-icon {
            width: 42px; height: 42px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 106, 61, 0.12);
            border: 1px solid rgba(255, 106, 61, 0.25);
            border-radius: 10px;
            color: var(--primary-light);
            font-size: 0.95rem;
        }

        .info-list-item .list-content { flex: 1; }

        .info-list-item .list-content h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.35rem;
            color: #fff;
        }

        .info-list-item .list-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section {
            background: transparent;
            padding: var(--space-section) 0;
        }

        .faq-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.9rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-accordion .accordion-item:hover {
            border-color: var(--border-light);
            background: var(--surface-hover);
        }

        .faq-accordion .accordion-header {
            border-bottom: none;
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: #fff;
            font-size: 0.98rem;
            font-weight: 600;
            padding: 1.1rem 1.3rem;
            box-shadow: none;
            border: none;
            text-align: left;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary-light);
            background: rgba(255, 106, 61, 0.06);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-light);
        }

        .faq-accordion .accordion-button::after {
            background: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: '\f107';
            color: var(--primary-light);
            transition: var(--transition);
            width: auto;
            height: auto;
            line-height: 1;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .faq-accordion .accordion-body {
            padding: 0 1.3rem 1.2rem;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.8;
            background: transparent;
        }

        /* CTA */
        .cta-section {
            background: url('/assets/images/backpic/back-3.png') center center / cover;
            padding: 5.5rem 0;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 19, 33, 0.9) 0%, rgba(30, 42, 74, 0.75) 100%);
        }

        .cta-section .container { position: relative; z-index: 1; }

        .cta-box {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 2.8rem 2rem;
            backdrop-filter: blur(10px);
            text-align: center;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
        }

        .cta-box p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto 1.8rem;
            line-height: 1.8;
        }

        /* 页脚 */
        .footer {
            background: #0a0f1a;
            border-top: 1px solid var(--border);
            padding-top: 3.5rem;
        }

        .footer .footer-brand {
            display: flex;
            align-items: center;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer .footer-brand .brand-icon {
            width: 38px; height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            color: #fff;
            font-size: 1rem;
            margin-right: 10px;
        }

        .footer h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1.1rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li { margin-bottom: 0.55rem; }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-links a i {
            font-size: 0.75rem;
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 1.3rem 0;
            margin-top: 2.5rem;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-dim);
            font-size: 0.85rem;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            :root { --space-section: 4.5rem; }
            .category-hero h1 { font-size: 2.6rem; }
        }

        @media (max-width: 767.98px) {
            :root { --space-section: 3.5rem; }
            .category-hero { padding: 7rem 0 3.5rem; }
            .category-hero h1 { font-size: 2rem; }
            .category-hero .lead { font-size: 0.95rem; }
            .section-header h2 { font-size: 1.6rem; }
            .step-item { margin-bottom: 1rem; }
            .info-list-item { flex-direction: column; gap: 0.8rem; }
            .cta-box h2 { font-size: 1.6rem; }
            .cta-box { padding: 2rem 1.2rem; }
        }

        @media (max-width: 520px) {
            .custom-navbar .navbar-brand { font-size: 1.05rem; }
            .custom-navbar .brand-icon { width: 32px; height: 32px; font-size: 0.85rem; }
            .category-hero h1 { font-size: 1.7rem; }
            .category-hero .hero-meta .meta-item { font-size: 0.78rem; padding: 0.3rem 0.8rem; }
            .guide-card { padding: 1.2rem; }
            .content-card .card-img-wrap { height: 150px; }
        }

/* roulang page: article */
:root {
    --primary: #161a2f;
    --primary-dark: #0f1117;
    --accent: #f0a500;
    --accent-light: #ffc63d;
    --accent-dark: #c98600;
    --bg-body: #141824;
    --bg-card: #1a1f33;
    --bg-card-hover: #202640;
    --text-light: #eef0f4;
    --text-muted: #9a9fb3;
    --border: #262b42;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 8px 30px rgba(0,0,0,.35);
    --shadow-hover: 0 14px 45px rgba(0,0,0,.55);
    --transition: .25s ease;
    --font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg-body);
    color: var(--text-light);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
.btn:focus-visible, .nav-link:focus-visible, a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    box-shadow: none;
}
.container { max-width: 1280px; }
section { position: relative; }

/* 导航 */
.custom-navbar {
    background: rgba(14, 16, 28, .94);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    padding: .7rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, .4);
    transition: all var(--transition);
}
.custom-navbar .navbar-brand {
    font-size: 1.22rem;
    font-weight: 700;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: .55rem;
    letter-spacing: .5px;
    transition: all var(--transition);
}
.custom-navbar .navbar-brand:hover { color: var(--accent-light); }
.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--accent), #ff8c42);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(240, 165, 0, .35);
    flex-shrink: 0;
    transition: transform var(--transition);
}
.brand-icon:hover { transform: rotate(15deg) scale(1.05); }
.custom-navbar .navbar-nav .nav-link {
    color: rgba(255, 255, 255, .82);
    font-weight: 500;
    padding: .5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    font-size: .95rem;
}
.custom-navbar .navbar-nav .nav-link:hover,
.custom-navbar .navbar-nav .nav-link.active {
    color: var(--accent-light);
    background: rgba(240, 165, 0, .08);
}
.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: var(--radius-sm);
    padding: .35rem .6rem;
}
.navbar-toggler:focus {
    box-shadow: none;
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* 按钮 */
.btn-accent {
    background: linear-gradient(135deg, var(--accent), #ff8c42);
    color: #fff;
    font-weight: 600;
    border: none;
    padding: .55rem 1.4rem;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 18px rgba(240, 165, 0, .35);
    transition: all var(--transition);
    letter-spacing: .3px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
}
.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(240, 165, 0, .5);
    color: #fff;
}
.btn-accent:active { transform: translateY(0); box-shadow: 0 4px 14px rgba(240, 165, 0, .35); }
.btn-outline-light {
    border: 1px solid rgba(255, 255, 255, .35);
    color: rgba(255, 255, 255, .9);
    background: transparent;
    font-weight: 500;
    border-radius: var(--radius-sm);
    padding: .55rem 1.4rem;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, .1);
    border-color: rgba(255, 255, 255, .6);
    color: #fff;
    transform: translateY(-2px);
}
.btn-outline-light:active { transform: translateY(0); }

/* 文章 Hero */
.article-hero {
    position: relative;
    padding: 170px 0 70px;
    background:
        linear-gradient(180deg, rgba(8, 10, 18, .65) 0%, rgba(10, 12, 22, .8) 55%, rgba(20, 24, 36, .95) 100%),
        url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    border-bottom: 1px solid rgba(255, 255, 255, .04);
    overflow: hidden;
}
.article-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 80% 20%, rgba(240, 165, 0, .08), transparent 60%);
    pointer-events: none;
}
.article-hero .container { position: relative; z-index: 1; }
.breadcrumb-zone {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .3rem;
    font-size: .88rem;
    color: rgba(255, 255, 255, .6);
    margin-bottom: 1.4rem;
}
.breadcrumb-zone a { color: rgba(255, 255, 255, .6); transition: color var(--transition); }
.breadcrumb-zone a:hover { color: var(--accent-light); }
.breadcrumb-zone .sep { opacity: .4; padding: 0 .2rem; }
.breadcrumb-zone .current { color: rgba(255, 255, 255, .9); }
.category-badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    background: linear-gradient(135deg, rgba(240, 165, 0, .25), rgba(240, 165, 0, .08));
    border: 1px solid rgba(240, 165, 0, .3);
    color: var(--accent-light);
    font-size: .8rem;
    font-weight: 600;
    padding: .35rem .9rem;
    border-radius: 50px;
    letter-spacing: .5px;
    margin-bottom: 1.2rem;
    backdrop-filter: blur(4px);
}
.article-hero h1 {
    font-size: clamp(1.7rem, 3.8vw, 2.8rem);
    font-weight: 800;
    line-height: 1.3;
    color: #fff;
    max-width: 900px;
    margin-bottom: 1.3rem;
    letter-spacing: .5px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, .5);
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem 1.5rem;
    font-size: .88rem;
    color: rgba(255, 255, 255, .65);
}
.article-meta span { display: inline-flex; align-items: center; gap: .45rem; }
.article-meta i { color: var(--accent); font-size: .8rem; }

/* 文章主体 */
.article-main {
    padding: 70px 0 50px;
    background: var(--bg-body);
    background-image: radial-gradient(ellipse at 20% 0%, rgba(240, 165, 0, .03), transparent 50%);
}
.article-card {
    background: #f8f6f1;
    color: #333;
    border-radius: 18px;
    padding: clamp(24px, 4vw, 48px);
    box-shadow: 0 12px 45px rgba(0, 0, 0, .45);
    border: 1px solid rgba(255, 255, 255, .08);
    transition: transform var(--transition), box-shadow var(--transition);
}
.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 55px rgba(0, 0, 0, .55);
}
.article-cover {
    border-radius: 12px;
    width: 100%;
    object-fit: cover;
    margin-bottom: 2rem;
    box-shadow: 0 6px 25px rgba(0, 0, 0, .15);
}
.article-content { font-size: 1.04rem; line-height: 1.9; color: #3a3a3a; }
.article-content > * { margin-bottom: 1.2rem; }
.article-content h2 {
    font-size: 1.55rem;
    font-weight: 700;
    color: #1a1a2e;
    border-left: 4px solid var(--accent);
    padding-left: 1rem;
    margin: 2.2rem 0 1rem !important;
}
.article-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #222;
    margin: 1.8rem 0 .8rem !important;
}
.article-content p { line-height: 1.9; }
.article-content ul, .article-content ol { padding-left: 1.6rem; }
.article-content li { margin-bottom: .5rem; }
.article-content img { border-radius: 12px; margin: 1.5rem 0; box-shadow: 0 4px 15px rgba(0, 0, 0, .1); }
.article-content blockquote {
    border-left: 4px solid var(--accent);
    background: rgba(240, 165, 0, .05);
    padding: 1rem 1.5rem;
    border-radius: 0 10px 10px 0;
    color: #555;
    font-style: italic;
}
.article-content a { color: var(--accent-dark); font-weight: 500; border-bottom: 1px solid rgba(240, 165, 0, .3); }
.article-content a:hover { color: var(--accent); border-color: var(--accent); }

.not-found-box { text-align: center; padding: 4rem 1rem; }
.not-found-box i { font-size: 3.5rem; color: #dcd6cc; margin-bottom: 1rem; }
.not-found-box h2 { font-size: 1.5rem; color: #333; margin-bottom: .8rem; }
.not-found-box p { color: #888; margin-bottom: 1.5rem; }

/* 侧边栏 */
.sidebar-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 1.8rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 6px 25px rgba(0, 0, 0, .25);
    transition: all var(--transition);
}
.sidebar-card:hover { border-color: rgba(240, 165, 0, .15); box-shadow: 0 10px 35px rgba(0, 0, 0, .35); }
.sidebar-card h5 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 1.2rem;
    padding-bottom: .8rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: .5rem;
}
.sidebar-card h5 i { color: var(--accent); font-size: .9rem; }
.sidebar-links { list-style: none; padding: 0; margin: 0; }
.sidebar-links li { border-bottom: 1px solid rgba(255, 255, 255, .04); }
.sidebar-links li:last-child { border-bottom: none; }
.sidebar-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .7rem 0;
    color: rgba(255, 255, 255, .78);
    font-size: .92rem;
    transition: all var(--transition);
}
.sidebar-links a:hover { color: var(--accent-light); padding-left: .4rem; }
.sidebar-links a i { color: var(--accent); font-size: .8rem; opacity: .6; transition: all var(--transition); }
.sidebar-links a:hover i { opacity: 1; transform: translateX(3px); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: .5rem; }
.tag {
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .08);
    color: rgba(255, 255, 255, .75);
    font-size: .8rem;
    padding: .35rem .9rem;
    border-radius: 50px;
    transition: all var(--transition);
    display: inline-block;
}
.tag:hover {
    background: rgba(240, 165, 0, .12);
    border-color: rgba(240, 165, 0, .3);
    color: var(--accent-light);
    transform: translateY(-1px);
}
.side-cta { background: linear-gradient(135deg, rgba(240, 165, 0, .1), rgba(240, 165, 0, .03)); border-color: rgba(240, 165, 0, .15); }
.side-cta h5 { color: var(--accent-light); }
.side-cta p { font-size: .85rem; color: rgba(255, 255, 255, .7); margin-bottom: 1.2rem; }

/* 相关推荐 */
.related-section {
    padding: 75px 0 60px;
    background: linear-gradient(180deg, var(--bg-body), #10121a);
    border-top: 1px solid rgba(255, 255, 255, .03);
}
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    color: #fff;
    position: relative;
    display: inline-block;
    padding-bottom: .8rem;
}
.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
}
.section-header p { color: var(--text-muted); font-size: .95rem; margin-top: .6rem; }
.related-card {
    background: var(--bg-card);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.related-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(240, 165, 0, .2);
}
.related-card .img-wrap { position: relative; overflow: hidden; padding-top: 68%; }
.related-card .img-wrap img {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}
.related-card:hover .img-wrap img { transform: scale(1.06); }
.related-card .img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(10, 12, 20, .35));
    pointer-events: none;
}
.related-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.related-card-body .cat-label {
    font-size: .75rem;
    color: var(--accent-light);
    background: rgba(240, 165, 0, .1);
    border: 1px solid rgba(240, 165, 0, .15);
    padding: .2rem .7rem;
    border-radius: 50px;
    align-self: flex-start;
    margin-bottom: .7rem;
    font-weight: 600;
    letter-spacing: .5px;
}
.related-card-body h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-light);
    line-height: 1.45;
    margin-bottom: .6rem;
    flex: 1;
}
.related-card-body h4 a { transition: color var(--transition); }
.related-card-body h4 a:hover { color: var(--accent-light); }
.related-card-body .related-excerpt {
    font-size: .85rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 1rem;
}
.related-card-body .related-link {
    font-size: .85rem;
    color: var(--accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    transition: all var(--transition);
}
.related-card-body .related-link:hover { gap: .6rem; color: var(--accent-light); }

/* 分类快速入口 */
.category-section {
    padding: 75px 0;
    background: var(--bg-body);
    background-image: radial-gradient(ellipse at 80% 20%, rgba(240, 165, 0, .04), transparent 60%);
}
.cat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 1.8rem;
    height: 100%;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.cat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(240, 165, 0, .6), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .5s ease;
}
.cat-card:hover::before { transform: scaleX(1); }
.cat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(240, 165, 0, .2);
}
.cat-card .cat-icon {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, rgba(240, 165, 0, .18), rgba(240, 165, 0, .05));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent);
    margin-bottom: 1rem;
    border: 1px solid rgba(240, 165, 0, .15);
}
.cat-card h4 { font-size: 1.05rem; font-weight: 700; color: var(--text-light); margin-bottom: .5rem; }
.cat-card p { font-size: .85rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 0; }
.cat-card .cat-link {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .82rem;
    color: var(--accent);
    font-weight: 600;
    margin-top: 1rem;
    transition: all var(--transition);
}
.cat-card .cat-link:hover { gap: .6rem; color: var(--accent-light); }

/* FAQ */
.faq-section {
    padding: 75px 0;
    background: linear-gradient(180deg, var(--bg-body), #10121a);
    border-top: 1px solid rgba(255, 255, 255, .03);
}
.accordion { --bs-accordion-bg: var(--bg-card); --bs-accordion-border-color: var(--border); --bs-accordion-border-radius: 12px; --bs-accordion-btn-color: var(--text-light); --bs-accordion-active-bg: rgba(240, 165, 0, .06); --bs-accordion-active-color: var(--accent-light); --bs-accordion-btn-focus-box-shadow: none; }
.accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px !important;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all var(--transition);
}
.accordion-item:hover { border-color: rgba(240, 165, 0, .2); }
.accordion-item:first-of-type, .accordion-item:last-of-type { border-radius: 12px !important; }
.accordion-button {
    background: transparent;
    color: var(--text-light);
    font-weight: 600;
    font-size: .95rem;
    padding: 1.1rem 1.3rem;
    box-shadow: none;
}
.accordion-button:not(.collapsed) {
    background: rgba(240, 165, 0, .04);
    color: var(--accent-light);
}
.accordion-button::after {
    filter: invert(1);
    opacity: .6;
}
.accordion-button:not(.collapsed)::after { filter: invert(1) sepia(1) saturate(5) hue-rotate(-10deg); opacity: .8; }
.accordion-body {
    color: rgba(255, 255, 255, .78);
    font-size: .92rem;
    line-height: 1.85;
    padding: 1.1rem 1.3rem 1.3rem;
    border-top: 1px solid rgba(255, 255, 255, .04);
}

/* CTA */
.cta-section {
    padding: 70px 0 80px;
    background: var(--bg-body);
}
.cta-box {
    background:
        linear-gradient(135deg, rgba(15, 18, 30, .92), rgba(20, 24, 38, .85)),
        url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, .06);
    padding: 3.5rem 2.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(240, 165, 0, .1), transparent 60%);
    pointer-events: none;
}
.cta-box h2 {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: .6rem;
    position: relative;
    z-index: 1;
}
.cta-box p {
    color: rgba(255, 255, 255, .7);
    font-size: 1rem;
    margin-bottom: 1.8rem;
    position: relative;
    z-index: 1;
}
.cta-box .d-flex { position: relative; z-index: 1; }

/* 页脚 */
.footer {
    background: #0d0f18;
    border-top: 1px solid rgba(255, 255, 255, .04);
    padding-top: 50px;
    position: relative;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(240, 165, 0, .3), transparent);
}
.footer-brand {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: 1rem;
}
.footer h5 {
    font-size: .95rem;
    font-weight: 700;
    color: rgba(255, 255, 255, .9);
    margin-bottom: 1.1rem;
    position: relative;
    padding-bottom: .6rem;
}
.footer h5::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 25px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: .4rem; }
.footer-links a {
    color: rgba(255, 255, 255, .65);
    font-size: .88rem;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .3rem;
}
.footer-links a i { font-size: .7rem; color: var(--accent); opacity: .5; transition: all var(--transition); }
.footer-links a:hover { color: var(--accent-light); padding-left: .3rem; }
.footer-links a:hover i { opacity: 1; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .05);
    padding: 1.2rem 0;
    margin-top: 2rem;
    text-align: center;
    background: rgba(0, 0, 0, .2);
}
.footer-bottom p {
    font-size: .85rem;
    color: rgba(255, 255, 255, .5);
    margin: 0;
}

/* 响应式 */
@media (max-width: 1024px) {
    .article-hero { padding: 150px 0 55px; }
    .article-main { padding: 50px 0 35px; }
    .related-section, .category-section, .faq-section { padding: 55px 0; }
    .cta-box { padding: 3rem 2rem; }
}
@media (max-width: 768px) {
    .article-hero { padding: 130px 0 45px; }
    .article-hero h1 { font-size: 1.6rem; }
    .article-card { padding: 24px; }
    .article-content { font-size: 1rem; }
    .article-main .col-lg-4 { margin-top: 1.5rem; }
    .cta-box { padding: 2.5rem 1.2rem; }
    .cta-box .d-flex { flex-direction: column; align-items: center; gap: .8rem !important; }
    .related-card .img-wrap { padding-top: 62%; }
}
@media (max-width: 520px) {
    .article-hero { padding: 115px 0 35px; }
    .article-hero h1 { font-size: 1.35rem; }
    .article-meta { font-size: .8rem; gap: .4rem .8rem; }
    .article-card { padding: 18px; border-radius: 14px; }
    .article-content h2 { font-size: 1.3rem; }
    .article-content h3 { font-size: 1.15rem; }
    .sidebar-card { padding: 1.3rem; }
    .section-header h2 { font-size: 1.4rem; }
    .related-card .img-wrap { padding-top: 70%; }
    .cta-box h2 { font-size: 1.3rem; }
    .cta-box p { font-size: .9rem; }
}