/* roulang page: index */
:root{
  --bg-primary:#0E1116;
  --bg-secondary:#161B24;
  --bg-card:#1B212C;
  --bg-float:#222A38;
  --accent:#E8A23D;
  --accent-hover:#F0B454;
  --accent-dark:#C88724;
  --danger:#C1493E;
  --success:#4CAF7D;
  --text-primary:#F2F4F7;
  --text-secondary:#9AA4B2;
  --text-muted:#6B7482;
  --border:rgba(255,255,255,0.08);
  --border-accent:rgba(232,162,61,0.35);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-chip:20px;
  --radius-input:10px;
  --shadow-card:0 6px 24px rgba(0,0,0,0.25);
  --shadow-hover:0 10px 32px rgba(0,0,0,0.35);
  --transition:all .2s ease;
  --font-main:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-main);background:var(--bg-primary);color:var(--text-primary);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:14px;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-input);padding:0 14px;height:44px;width:100%;outline:none;transition:var(--transition)}
textarea{height:auto;padding-top:12px;padding-bottom:12px;resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,162,61,0.15)}
input::placeholder,textarea::placeholder{color:var(--text-muted)}
::selection{background:rgba(232,162,61,0.3)}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-header{margin-bottom:48px}
.section-header .tagline{display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--accent);background:rgba(232,162,61,0.1);border:1px solid var(--border-accent);padding:4px 14px;border-radius:20px;margin-bottom:16px}
.section-header h2{font-size:32px;font-weight:800;letter-spacing:-0.01em;line-height:1.3;margin-bottom:12px}
.section-header p{font-size:16px;color:var(--text-secondary);max-width:640px;line-height:1.8}
.btn{display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;border-radius:var(--radius-btn);padding:12px 28px;transition:var(--transition);gap:8px;border:1px solid transparent;line-height:1.4}
.btn-primary{background:var(--accent);color:#171110;box-shadow:0 2px 8px rgba(232,162,61,0.2)}
.btn-primary:hover{background:var(--accent-hover);color:#171110;transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,162,61,0.3)}
.btn-outline{background:transparent;color:var(--text-primary);border-color:rgba(255,255,255,0.25)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-lg{padding:15px 36px;font-size:16px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;border-radius:var(--radius-chip);padding:5px 16px;border:1px solid var(--border);color:var(--text-secondary);transition:var(--transition);cursor:pointer}
.chip:hover{background:rgba(232,162,61,0.1);color:var(--accent);border-color:var(--border-accent)}
.chip-accent{border-color:var(--border-accent);color:var(--accent);font-weight:600}
.chip-accent:hover{background:var(--accent);color:#171110}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.chip .dot.danger{background:var(--danger)}
.badge{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:4px;letter-spacing:0.5px}
.badge-danger{background:rgba(193,73,62,0.15);color:var(--danger);border:1px solid rgba(193,73,62,0.3)}
.badge-gold{background:rgba(232,162,61,0.15);color:var(--accent);border:1px solid var(--border-accent)}

/* Header */
.site-header{position:sticky;top:0;z-index:100}
.header-main{background:rgba(14,17,22,0.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-main.scrolled{background:rgba(14,17,22,0.98);border-bottom-color:rgba(255,255,255,0.12)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{font-size:22px;font-weight:800;letter-spacing:1px;color:var(--text-primary);display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand:hover{color:var(--accent)}
.brand .brand-mark{width:32px;height:32px;background:var(--accent);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#171110;font-size:16px;font-weight:900}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{font-size:15px;font-weight:500;color:var(--text-secondary);padding:8px 16px;border-radius:8px;position:relative}
.nav-link:hover{color:var(--text-primary);background:rgba(255,255,255,0.04)}
.nav-link.active{color:var(--text-primary);font-weight:600}
.nav-link.active::after{content:'';position:absolute;bottom:-2px;left:16px;right:16px;height:2px;background:var(--accent);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:40px;height:40px;border-radius:8px;justify-content:center;align-items:center;flex-direction:column;gap:5px;border:1px solid var(--border)}
.nav-toggle span{width:18px;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--transition)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.header-sub{background:rgba(22,27,36,0.85);border-bottom:1px solid var(--border)}
.header-sub-inner{display:flex;align-items:center;justify-content:flex-end;gap:8px;min-height:40px;padding-top:4px;padding-bottom:4px}
.sub-label{font-size:12px;color:var(--text-muted);letter-spacing:1px;margin-right:4px}
@media(max-width:992px){
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg-secondary);flex-direction:column;padding:16px;gap:4px;border-bottom:1px solid var(--border);box-shadow:0 20px 40px rgba(0,0,0,0.4)}
  .main-nav.open{display:flex}
  .nav-link{width:100%;padding:12px 16px;border-radius:8px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(232,162,61,0.1);color:var(--accent)}
  .nav-toggle{display:flex}
  .header-sub-inner{overflow-x:auto;justify-content:flex-start}
  .header-sub-inner::-webkit-scrollbar{display:none}
}

/* Hero */
.hero{position:relative;background:url('/assets/images/backpic/back-1.jpg') center center/cover no-repeat;padding:0;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,17,22,0.95) 0%,rgba(14,17,22,0.85) 45%,rgba(14,17,22,0.6) 100%)}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,var(--bg-primary) 0%,transparent 30%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 0.9fr;gap:60px;align-items:center;padding:110px 0 96px}
.hero-badge{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--accent);background:rgba(232,162,61,0.12);border:1px solid var(--border-accent);padding:6px 16px;border-radius:20px;margin-bottom:24px;text-transform:uppercase}
.hero h1{font-size:42px;font-weight:800;line-height:1.25;letter-spacing:-0.01em;margin-bottom:20px;color:var(--text-primary)}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-desc{font-size:16px;line-height:1.8;color:var(--text-secondary);max-width:560px;margin-bottom:36px}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{display:flex;gap:0;border-top:1px solid rgba(255,255,255,0.08);padding-top:32px}
.stat{flex:1;text-align:left;padding-right:24px;position:relative}
.stat:not(:last-child)::after{content:'';position:absolute;right:12px;top:6px;bottom:6px;width:1px;background:rgba(255,255,255,0.08)}
.stat strong{display:block;font-size:28px;font-weight:800;color:var(--text-primary);line-height:1.2}
.stat span{font-size:13px;color:var(--text-muted);margin-top:4px;display:block}
.hero-right{position:relative}
.rank-panel{background:rgba(27,33,44,0.75);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,0.1);border-radius:16px;padding:28px;box-shadow:var(--shadow-card)}
.rank-panel::before{content:'';position:absolute;top:-1px;left:32px;width:56px;height:3px;background:var(--accent);border-radius:3px}
.rank-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.rank-header span{font-size:16px;font-weight:700}
.rank-header small{font-size:12px;color:var(--text-muted)}
.rank-list{list-style:none}
.rank-item{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,0.06)}
.rank-item:last-child{border-bottom:none}
.rank-num{font-size:16px;font-weight:800;color:var(--text-muted);width:28px;text-align:center;font-style:italic}
.rank-item:nth-child(1) .rank-num,.rank-item:nth-child(2) .rank-num,.rank-item:nth-child(3) .rank-num{color:var(--accent)}
.rank-info{flex:1}
.rank-info strong{display:block;font-size:14px;font-weight:600;color:var(--text-primary);line-height:1.4}
.rank-info small{font-size:12px;color:var(--text-muted);line-height:1.4}
.rank-tag{font-size:11px;font-weight:600;padding:2px 10px;border-radius:12px;background:rgba(232,162,61,0.1);color:var(--accent);white-space:nowrap}
@media(max-width:992px){
  .hero-inner{grid-template-columns:1fr;gap:48px;padding:72px 0 64px}
  .hero h1{font-size:32px}
  .hero-stats{flex-wrap:wrap}
  .stat{flex:0 0 33.333%;padding:8px;margin-bottom:16px}
  .stat::after{display:none}
}

/* Feature (功能分组) */
.feature-section{background:var(--bg-primary);position:relative}
.feature-section::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(232,162,61,0.3),transparent)}
.feature-grid{display:grid;grid-template-columns:1.4fr 0.6fr;grid-template-rows:repeat(3,auto);gap:16px}
.feature-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);padding:28px;transition:var(--transition);position:relative;overflow:hidden;min-height:150px}
.feature-item:hover{background:var(--bg-float);transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-accent)}
.feature-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);transform:scaleY(0);transition:transform .25s ease}
.feature-item:hover::before{transform:scaleY(1)}
.feature-item .feature-icon{width:46px;height:46px;border-radius:10px;background:rgba(232,162,61,0.1);border:1px solid var(--border-accent);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.feature-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.feature-item p{font-size:14px;color:var(--text-secondary);line-height:1.7}
.feature-item.feature-main{grid-column:1;grid-row:span 2;background:linear-gradient(135deg,#1B212C 0%,#222A38 100%);min-height:320px}
.feature-item.feature-side{grid-column:2}
.feature-item.feature-side:first-of-type{grid-row:1}
.feature-item.feature-side:last-of-type{grid-row:span 2}
.feature-keywords{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
@media(max-width:768px){
  .feature-grid{grid-template-columns:1fr}
  .feature-item.feature-main{grid-column:1;grid-row:auto}
  .feature-item.feature-side{grid-column:1;grid-row:auto}
}

/* 时段卡 Scene */
.scene-section{background:var(--bg-secondary);position:relative}
.scene-section::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.1),transparent)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;transition:var(--transition)}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-accent)}
.scene-media{position:relative;height:0;padding-bottom:56.25%;overflow:hidden}
.scene-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-media .scene-label{position:absolute;bottom:12px;left:12px;z-index:2}
.scene-body{padding:24px}
.scene-body h3{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.4}
.scene-body p{font-size:14px;color:var(--text-secondary);line-height:1.7;}
.scene-list{list-style:none;margin-top:12px}
.scene-list li{font-size:13px;color:var(--text-secondary);padding:4px 0;display:flex;align-items:flex-start;gap:8px}
.scene-list li::before{content:'✓';color:var(--accent);font-weight:700;flex-shrink:0}
@media(max-width:992px){
  .scene-grid{grid-template-columns:1fr;max-width:480px;margin:0 auto}
}

/* Cases */
.cases-section{background:var(--bg-primary)}
.cases-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;grid-template-rows:auto;gap:24px}
.case-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column;transition:var(--transition)}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-accent)}
.case-card-lg{grid-column:1;grid-row:span 1;flex-direction:row;background:linear-gradient(135deg,#1B212C,#222A38)}
.case-card-lg .case-media{flex:1;min-height:260px;padding-bottom:0}
.case-card-lg .case-body{flex:1;padding:32px}
.case-card-lg .case-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.case-card .case-media{position:relative;height:180px;overflow:hidden;padding-bottom:0}
.case-card .case-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:24px;flex:1;display:flex;flex-direction:column}
.case-meta{display:flex;align-items:center;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.case-body h3{font-size:18px;font-weight:700;margin-bottom:8px;line-height:1.4}
.case-body p{font-size:14px;color:var(--text-secondary);line-height:1.7;flex:1}
.case-result{margin-top:16px;padding-top:16px;border-top:1px solid var(--border);display:flex;align-items:baseline;gap:8px}
.case-result strong{font-size:22px;color:var(--accent);font-weight:800}
.case-result span{font-size:13px;color:var(--text-muted)}
@media(max-width:992px){
  .cases-grid{grid-template-columns:1fr}
  .case-card-lg{flex-direction:column}
  .case-card-lg .case-media{min-height:200px}
}

/* News */
.news-section{background:var(--bg-secondary)}
.news-layout{display:grid;grid-template-columns:1.6fr 0.9fr;gap:40px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:0}
.news-item{display:flex;align-items:flex-start;gap:16px;padding:18px 0;border-bottom:1px solid var(--border);transition:var(--transition);border-radius:8px}
.news-item:hover{padding-left:12px;background:rgba(255,255,255,0.03)}
.news-date{font-size:13px;color:var(--text-muted);white-space:nowrap;padding-top:4px;min-width:96px}
.news-date .badge{display:block;margin-bottom:6px}
.news-item h3{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:4px}
.news-item h3 a{color:var(--text-primary)}
.news-item h3 a:hover{color:var(--accent)}
.news-item p{font-size:13px;color:var(--text-muted);line-height:1.6}
.news-sidebar .sidebar-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);padding:24px;margin-bottom:24px}
.news-sidebar .sidebar-panel h4{font-size:15px;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.tags-cloud{display:flex;flex-wrap:wrap;gap:8px}
.sidebar-links{list-style:none}
.sidebar-links li{margin-bottom:4px}
.sidebar-links a{font-size:14px;color:var(--text-secondary);padding:6px 0;display:block;border-left:2px solid transparent;padding-left:12px}
.sidebar-links a:hover{color:var(--accent);border-left-color:var(--accent);padding-left:16px;background:rgba(232,162,61,0.04)}
@media(max-width:768px){
  .news-layout{grid-template-columns:1fr}
}

/* Pricing */
.pricing-section{background:var(--bg-primary)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.pricing-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:36px 32px;display:flex;flex-direction:column;transition:var(--transition);position:relative}
.pricing-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.pricing-card.pricing-highlight{border:1.5px solid var(--accent);box-shadow:0 8px 40px rgba(232,162,61,0.12);background:linear-gradient(160deg,#1B212C,#222A38)}
.pricing-highlight .pop-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--accent);color:#171110;font-size:12px;font-weight:700;padding:3px 16px;border-radius:12px;letter-spacing:1px}
.pricing-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.pricing-card .price{font-size:36px;font-weight:800;letter-spacing:-0.02em;margin-bottom:4px}
.pricing-card .price span{font-size:14px;font-weight:400;color:var(--text-muted)}
.pricing-card .price-note{font-size:12px;color:var(--text-muted);margin-bottom:24px}
.pricing-card ul{list-style:none;flex:1;margin-bottom:24px}
.pricing-card ul li{font-size:14px;color:var(--text-secondary);padding:6px 0;display:flex;align-items:flex-start;gap:8px}
.pricing-card ul li::before{content:'✓';color:var(--accent);font-weight:700;flex-shrink:0}
.pricing-card .btn{width:100%}
.pricing-card.pricing-highlight .btn{background:var(--accent);color:#171110}
@media(max-width:768px){
  .pricing-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto}
  .pricing-highlight{order:-1}
}

/* Trial Form */
.trial-section{background:url('/assets/images/backpic/back-4.jpg') center center/cover fixed;position:relative}
.trial-section::before{content:'';position:absolute;inset:0;background:rgba(14,17,22,0.9)}
.trial-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.trial-info h2{font-size:30px;font-weight:800;margin-bottom:16px}
.trial-info p{font-size:15px;color:var(--text-secondary);line-height:1.8;margin-bottom:16px}
.trial-info ul{list-style:none;margin-bottom:24px}
.trial-info ul li{font-size:14px;color:var(--text-secondary);padding:4px 0;display:flex;align-items:flex-start;gap:8px}
.trial-info ul li::before{content:'✓';color:var(--accent);font-weight:700}
.trial-form-panel{background:rgba(27,33,44,0.9);backdrop-filter:blur(12px);border:1px solid var(--border-accent);border-radius:16px;padding:36px;box-shadow:var(--shadow-card)}
.trial-form-panel h3{font-size:20px;font-weight:700;margin-bottom:6px}
.trial-form-panel .form-sub{font-size:13px;color:var(--text-muted);margin-bottom:24px}
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:14px;font-weight:500;color:var(--text-secondary);margin-bottom:6px}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%23E8A23D' viewBox='0 0 12 8'%3E%3Cpath d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-btn{margin-top:8px}
@media(max-width:992px){
  .trial-inner{grid-template-columns:1fr}
  .trial-form-panel{margin-top:24px}
}

/* FAQ */
.faq-section{background:var(--bg-secondary)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.faq-item.active{border-color:var(--border-accent);box-shadow:0 4px 20px rgba(0,0,0,0.2)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;padding:18px 22px;font-size:15px;font-weight:600;color:var(--text-primary);text-align:left;transition:var(--transition)}
.faq-q:hover{color:var(--accent)}
.faq-icon{width:20px;height:20px;position:relative;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--text-muted);transition:var(--transition)}
.faq-icon::before{top:9px;left:0;right:0;height:2px;border-radius:2px}
.faq-icon::after{left:9px;top:0;bottom:0;width:2px;border-radius:2px}
.faq-item.active .faq-icon::before{background:var(--accent);transform:rotate(180deg)}
.faq-item.active .faq-icon::after{background:var(--accent);transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 22px 20px;font-size:14px;color:var(--text-secondary);line-height:1.8}
.faq-item.active .faq-a{max-height:300px}
@media(max-width:768px){
  .faq-q{padding:16px 18px;font-size:14px}
}

/* CTA */
.cta-section{position:relative;background:var(--bg-primary);padding:80px 0;text-align:center;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:-80px;left:50%;transform:translateX(-50%);width:400px;height:200px;background:radial-gradient(ellipse,rgba(232,162,61,0.12),transparent 70%)}
.cta-title{font-size:32px;font-weight:800;letter-spacing:-0.01em;margin-bottom:12px;position:relative}
.cta-sub{font-size:16px;color:var(--text-secondary);max-width:480px;margin:0 auto 32px;line-height:1.7;position:relative}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative}

/* Footer */
.site-footer{background:#0B0E12;border-top:1px solid var(--border);padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;max-width:280px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-primary);margin-bottom:16px;letter-spacing:0.5px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{font-size:14px;color:var(--text-secondary)}
.footer-col ul a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:var(--text-muted)}
.footer-bottom .footer-mini-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .footer-mini-links a{font-size:13px;color:var(--text-muted)}
.footer-bottom .footer-mini-links a:hover{color:var(--accent)}
@media(max-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:span 2}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:span 1}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* 通用响应式 */
@media(max-width:768px){
  .section{padding:64px 0}
  .section-header h2{font-size:26px}
  .hero h1{font-size:28px}
  .hero-desc{font-size:15px}
  .trial-info h2{font-size:26px}
  .cta-title{font-size:26px}
}
@media(max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .header-actions .btn{padding:10px 16px;font-size:13px}
  .hero-inner{padding:56px 0 48px}
  .hero-stats{flex-direction:column;gap:12px}
  .stat{flex:0 0 auto;padding:8px 0;text-align:center}
  .form-row{grid-template-columns:1fr}
  .rank-panel{padding:20px}
}

/* roulang page: category1 */
/* ===== 设计系统 ===== */
:root{
  --bg-primary:#0E1116;
  --bg-secondary:#161B24;
  --bg-card:#1B212C;
  --bg-float:#222A38;
  --accent:#E8A23D;
  --accent-hover:#F0B454;
  --accent-dark:#C88724;
  --danger:#C1493E;
  --success:#4CAF7D;
  --text-primary:#F2F4F7;
  --text-secondary:#9AA4B2;
  --text-muted:#6B7482;
  --border:rgba(255,255,255,0.08);
  --border-accent:rgba(232,162,61,0.35);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-chip:20px;
  --radius-input:10px;
  --shadow-card:0 6px 24px rgba(0,0,0,0.25);
  --shadow-hover:0 10px 32px rgba(0,0,0,0.35);
  --transition:all .2s ease;
  --font-main:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-main);background:var(--bg-primary);color:var(--text-primary);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:14px;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-input);padding:0 14px;height:44px;width:100%;outline:none;transition:var(--transition)}
textarea{height:auto;padding-top:12px;padding-bottom:12px;resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,162,61,0.15)}
input::placeholder,textarea::placeholder{color:var(--text-muted)}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-header{margin-bottom:48px}
.section-header.center{text-align:center}
.section-header.center p{margin:0 auto}
.section-header .tagline{display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--accent);background:rgba(232,162,61,0.1);border:1px solid var(--border-accent);padding:4px 14px;border-radius:20px;margin-bottom:16px}
.section-header h2{font-size:32px;font-weight:800;letter-spacing:-0.01em;line-height:1.3;margin-bottom:12px}
.section-header p{font-size:16px;color:var(--text-secondary);max-width:640px;line-height:1.8}
::selection{background:rgba(232,162,61,0.3)}
.btn{display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;border-radius:var(--radius-btn);padding:12px 28px;transition:var(--transition);gap:8px;border:1px solid transparent;line-height:1.4}
.btn-primary{background:var(--accent);color:#171110;box-shadow:0 2px 8px rgba(232,162,61,0.2)}
.btn-primary:hover{background:var(--accent-hover);color:#171110;transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,162,61,0.3)}
.btn-outline{background:transparent;color:var(--text-primary);border-color:rgba(255,255,255,0.25)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-lg{padding:15px 36px;font-size:16px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;border-radius:var(--radius-chip);padding:5px 16px;border:1px solid var(--border);color:var(--text-secondary);transition:var(--transition);cursor:default;white-space:nowrap}
.chip:hover{background:rgba(232,162,61,0.1);color:var(--accent);border-color:var(--border-accent)}
.chip-accent{border-color:var(--border-accent);color:var(--accent);font-weight:600}
.chip-accent:hover{background:var(--accent);color:#171110}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.chip .dot.danger{background:var(--danger)}
.chip .dot.success{background:var(--success)}
.badge{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:4px;letter-spacing:0.5px}
.badge-danger{background:rgba(193,73,62,0.15);color:var(--danger);border:1px solid rgba(193,73,62,0.3)}
.badge-gold{background:rgba(232,162,61,0.15);color:var(--accent);border:1px solid var(--border-accent)}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:100}
.header-main{background:rgba(14,17,22,0.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-main.scrolled{background:rgba(14,17,22,0.98);border-bottom-color:rgba(255,255,255,0.12)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{font-size:22px;font-weight:800;letter-spacing:1px;color:var(--text-primary);display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand:hover{color:var(--accent)}
.brand .brand-mark{width:32px;height:32px;background:var(--accent);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#171110;font-size:16px;font-weight:900}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{font-size:15px;font-weight:500;color:var(--text-secondary);padding:8px 16px;border-radius:8px;position:relative}
.nav-link:hover{color:var(--text-primary);background:rgba(255,255,255,0.04)}
.nav-link.active{color:var(--text-primary);font-weight:600}
.nav-link.active::after{content:'';position:absolute;bottom:-2px;left:16px;right:16px;height:2px;background:var(--accent);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:40px;height:40px;border-radius:8px;justify-content:center;align-items:center;flex-direction:column;gap:5px;border:1px solid var(--border)}
.nav-toggle span{width:18px;height:2px;background:var(--text-primary);border-radius:2px;transition:var(--transition)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.header-sub{background:rgba(22,27,36,0.85);border-bottom:1px solid var(--border)}
.header-sub-inner{display:flex;align-items:center;justify-content:flex-end;gap:8px;min-height:40px;padding-top:4px;padding-bottom:4px}
.sub-label{font-size:12px;color:var(--text-muted);letter-spacing:1px;margin-right:4px;white-space:nowrap}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-muted);margin-bottom:24px}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-muted)}
.breadcrumb .current{color:var(--accent);font-weight:500}

/* ===== 分类 Hero ===== */
.hero-category{position:relative;padding:88px 0 76px;background:url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;border-bottom:1px solid var(--border)}
.hero-category::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,17,22,0.78) 0%,rgba(14,17,22,0.94) 70%,rgba(14,17,22,0.98) 100%)}
.hero-category .container{position:relative;z-index:2}
.hero-category h1{font-size:40px;font-weight:800;letter-spacing:-0.02em;line-height:1.25;margin-bottom:18px;max-width:760px}
.hero-desc{font-size:17px;color:var(--text-secondary);line-height:1.8;max-width:680px;margin-bottom:28px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-actions .btn{min-width:150px}

/* ===== 精选解析内容 ===== */
.article-section{background:var(--bg-primary)}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;transition:var(--transition);display:flex;flex-direction:column}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-accent)}
.article-card.featured{grid-column:span 2;flex-direction:row}
.article-card.featured .article-cover{flex:0 0 50%;min-height:260px}
.article-cover{position:relative;overflow:hidden;background:var(--bg-float)}
.article-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.article-card:hover .article-cover img{transform:scale(1.03)}
.article-cover .badge{position:absolute;top:14px;left:14px;z-index:2}
.article-body{padding:22px 24px;display:flex;flex-direction:column;flex:1}
.article-body h3{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px;transition:color .2s ease}
.article-card:hover .article-body h3{color:var(--accent)}
.article-body p{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:16px;flex:1}
.article-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-muted);border-top:1px solid var(--border);padding-top:14px}
.article-meta .meta-tag{color:var(--accent);font-weight:600}
.article-meta .meta-time{display:inline-flex;align-items:center;gap:4px}
.article-card.featured .article-body{padding:28px 30px}
.article-card.featured .article-body h3{font-size:24px;margin-bottom:14px}
.article-card.featured .article-body p{font-size:15px;margin-bottom:20px}
.article-card.view-all{background:rgba(232,162,61,0.05);border:1px dashed var(--border-accent);align-items:center;justify-content:center;text-align:center;padding:32px 24px;min-height:220px}
.article-card.view-all:hover{background:rgba(232,162,61,0.08)}
.article-card.view-all .view-all-icon{width:56px;height:56px;border-radius:50%;border:1px solid var(--border-accent);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--accent);margin-bottom:14px}
.article-card.view-all h3{font-size:18px;margin-bottom:8px}
.article-card.view-all p{font-size:14px;color:var(--text-muted);margin-bottom:0}

/* ===== 分页条 ===== */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.page-link{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;border-radius:10px;border:1px solid var(--border);font-size:14px;color:var(--text-secondary);transition:var(--transition)}
.page-link:hover{border-color:var(--border-accent);color:var(--accent)}
.page-link.active{background:var(--accent);color:#171110;border-color:var(--accent);font-weight:700}
.page-link.disabled{opacity:0.4;pointer-events:none}

/* ===== 方法论 ===== */
.method-section{background:var(--bg-secondary);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.method-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.method-step{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);padding:30px 26px;position:relative;transition:var(--transition)}
.method-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-accent)}
.step-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:2px;margin-bottom:8px;text-transform:uppercase}
.step-icon{width:46px;height:46px;border-radius:12px;background:rgba(232,162,61,0.1);border:1px solid var(--border-accent);display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--accent)}
.method-step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.method-step p{font-size:14px;color:var(--text-secondary);line-height:1.7}
.step-line{position:absolute;top:52px;right:-12px;width:24px;height:1px;background:rgba(232,162,61,0.3);display:none}
@media(min-width:992px){
  .method-step:not(:last-child) .step-line{display:block}
}

/* ===== 适用人群 ===== */
.audience-section{background:var(--bg-primary)}
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.audience-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);padding:34px 28px;transition:var(--transition);position:relative;overflow:hidden}
.audience-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-accent)}
.audience-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);opacity:0;transition:var(--transition)}
.audience-card:hover::before{opacity:1}
.audience-card.middle{background:linear-gradient(145deg,rgba(232,162,61,0.06),transparent 60%);border-color:var(--border-accent)}
.audience-icon{width:52px;height:52px;border-radius:14px;background:rgba(232,162,61,0.1);border:1px solid var(--border-accent);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:20px}
.audience-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.audience-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}

/* ===== 平台动态 ===== */
.news-section{background:var(--bg-secondary);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);padding:24px 22px;transition:var(--transition);display:flex;flex-direction:column;gap:8px}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--border-accent)}
.news-type{font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase}
.news-type.pub{color:var(--accent)}
.news-type.notice{color:var(--danger)}
.news-type.win{color:var(--success)}
.news-card p{font-size:14px;color:var(--text-secondary);line-height:1.7;flex:1}
.news-card .news-date{font-size:12px;color:var(--text-muted)}

/* ===== FAQ ===== */
.faq-section{background:var(--bg-primary)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-card);margin-bottom:14px;overflow:hidden;transition:border-color .25s ease}
.faq-item.active{border-color:var(--border-accent)}
.faq-question{display:flex;justify-content:space-between;align-items:center;padding:22px 26px;font-size:16px;font-weight:600;cursor:pointer;gap:16px;color:var(--text-primary);transition:color .2s ease}
.faq-item.active .faq-question{color:var(--accent)}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--text-secondary);border-radius:2px;transition:all .25s ease}
.faq-icon::before{top:9px;left:3px;right:3px;height:2px}
.faq-icon::after{left:9px;top:3px;bottom:3px;width:2px}
.faq-item.active .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.active .faq-icon::before{background:var(--accent)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.active .faq-answer{max-height:320px}
.faq-answer p{padding:0 26px 22px;color:var(--text-secondary);font-size:15px;line-height:1.8}

/* ===== CTA ===== */
.cta-section{position:relative;padding:84px 0;text-align:center;background:var(--bg-secondary);overflow:hidden;border-top:1px solid var(--border)}
.cta-section::before{content:'';position:absolute;top:-40%;left:50%;transform:translateX(-50%);width:600px;height:400px;background:radial-gradient(ellipse at center,rgba(232,162,61,0.12),transparent 70%);pointer-events:none}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:34px;font-weight:800;letter-spacing:-0.02em;margin-bottom:12px}
.cta-section p{font-size:16px;color:var(--text-secondary);margin-bottom:30px;max-width:520px;margin-left:auto;margin-right:auto}
.cta-section .btn{min-width:180px}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-primary);border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 0.8fr 0.8fr;gap:40px;padding-bottom:40px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;max-width:300px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text-primary)}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col li a{font-size:14px;color:var(--text-secondary)}
.footer-col li a:hover{color:var(--accent)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:20px 0;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}
.footer-mini-links{display:flex;gap:18px}
.footer-mini-links a{color:var(--text-muted)}
.footer-mini-links a:hover{color:var(--accent)}

/* ===== 响应式 ===== */
@media(max-width:992px){
  .section{padding:72px 0}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .article-card.featured{grid-column:span 2}
  .method-steps{grid-template-columns:repeat(2,1fr)}
  .audience-grid{grid-template-columns:repeat(2,1fr)}
  .audience-card:last-child{grid-column:span 2}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card:last-child{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-category h1{font-size:34px}
}
@media(max-width:768px){
  .section{padding:64px 0}
  .container{padding-left:18px;padding-right:18px}
  .header-main.scrolled{background:rgba(14,17,22,0.98)}
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg-secondary);flex-direction:column;padding:16px;gap:4px;border-bottom:1px solid var(--border);box-shadow:0 20px 40px rgba(0,0,0,0.4)}
  .main-nav.open{display:flex}
  .nav-link{width:100%;padding:12px 16px;border-radius:8px}
  .nav-link.active::after{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px}
  .main-nav{top:64px}
  .header-sub-inner{overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .header-sub-inner::-webkit-scrollbar{display:none}
  .hero-category{padding:64px 0 56px}
  .hero-category h1{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-actions .btn{width:calc(50% - 7px);min-width:0;padding:12px 16px}
  .article-grid{grid-template-columns:1fr}
  .article-card.featured{grid-column:span 1;flex-direction:column}
  .article-card.featured .article-cover{flex:none;min-height:200px}
  .article-card.featured .article-body h3{font-size:20px}
  .method-steps{grid-template-columns:1fr}
  .audience-grid{grid-template-columns:1fr}
  .audience-card:last-child{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .news-card:last-child{grid-column:span 1}
  .pagination{justify-content:flex-start;overflow-x:auto}
  .page-link{min-width:36px;height:36px;padding:0 10px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;text-align:center;padding-top:18px}
  .footer-mini-links{justify-content:center;flex-wrap:wrap}
  .section-header h2{font-size:26px}
  .cta-section h2{font-size:26px}
  .cta-section p{font-size:15px}
  .cta-section .btn{width:100%;max-width:240px}
}
@media(max-width:520px){
  .brand{font-size:20px}
  .brand .brand-mark{width:28px;height:28px;font-size:14px}
  .header-actions .btn{display:none}
  .header-actions{display:flex}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .hero-chips::-webkit-scrollbar{display:none}
  .article-card.featured .article-cover{min-height:180px}
  .article-body{padding:18px}
  .article-card.featured .article-body{padding:20px}
  .section-header{padding-right:10px;padding-left:10px}
}