/* roulang page: index */
/* ==== 设计变量 ==== */
:root {
  --c-primary: #1A1613;
  --c-bg: #12100E;
  --c-card: #211C18;
  --c-border: #3A342E;
  --c-accent: #C9A227;
  --c-accent-hover: #DDBB4A;
  --c-red: #E34D3C;
  --c-green: #74A57F;
  --c-text: #F4EFE9;
  --c-text2: #C8BEAF;
  --c-text3: #8F8578;
  --r-card: 12px;
  --r-btn: 8px;
  --r-input: 10px;
  --r-badge: 999px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,.3);
  --shadow-md: 0 6px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
  --tr: .2s ease;
  --font: 'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}
/* ==== Reset ==== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
button{cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
/* ==== 按钮 ==== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 30px;border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:all var(--tr);cursor:pointer;border:2px solid transparent;line-height:1.4;white-space:nowrap}
.btn-primary{background:var(--c-accent);color:var(--c-primary)}
.btn-primary:hover{background:var(--c-accent-hover);transform:translateY(-2px);box-shadow:0 4px 20px rgba(201,162,39,.35)}
.btn-outline{background:transparent;color:var(--c-text);border-color:rgba(244,239,233,.5)}
.btn-outline:hover{border-color:var(--c-accent);color:var(--c-accent);background:rgba(201,162,39,.08)}
.btn-dark{background:var(--c-primary);color:var(--c-text);border-color:var(--c-border)}
.btn-dark:hover{border-color:var(--c-accent);color:var(--c-accent)}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px}
/* ==== 导航 ==== */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(22,19,16,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:all var(--tr)}
.site-header.scrolled{background:#161310;border-bottom-color:var(--c-border);box-shadow:var(--shadow-md)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:36px;height:36px;border-radius:10px;background:var(--c-accent);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:16px}
.logo-text{font-size:22px;font-weight:700;letter-spacing:.5px;color:var(--c-text);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{padding:8px 14px;border-radius:8px;font-size:14px;font-weight:500;color:var(--c-text2);transition:all var(--tr);position:relative}
.nav-link:hover{color:var(--c-accent);background:rgba(201,162,39,.08)}
.nav-link.active{color:var(--c-accent);font-weight:600}
.nav-link.active::after{content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--c-accent);border-radius:2px}
.header-search{display:flex;align-items:center;background:rgba(255,255,255,.06);border:1px solid var(--c-border);border-radius:var(--r-input);padding:6px 12px;gap:8px;transition:border-color var(--tr);flex-shrink:0}
.header-search:focus-within{border-color:var(--c-accent)}
.header-search input{background:transparent;color:var(--c-text);font-size:13px;width:130px;border:none;outline:none}
.header-search input::placeholder{color:var(--c-text3)}
.header-search button{color:var(--c-text3);transition:color var(--tr)}
.header-search button:hover{color:var(--c-accent)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:8px;background:rgba(255,255,255,.06);border:1px solid var(--c-border);color:var(--c-text);font-size:18px;align-items:center;justify-content:center}
.menu-toggle:hover{border-color:var(--c-accent);color:var(--c-accent)}
/* ==== Hero ==== */
.hero{position:relative;min-height:580px;display:flex;align-items:center;background:url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(18,16,14,.88) 0%,rgba(18,16,14,.65) 50%,rgba(18,16,14,.3) 100%)}
.hero-content{position:relative;z-index:2;max-width:680px;padding:80px 0}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 16px;border-radius:var(--r-badge);background:rgba(201,162,39,.15);border:1px solid rgba(201,162,39,.3);color:var(--c-accent);font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:18px}
.hero h1{font-size:42px;font-weight:700;line-height:1.2;color:var(--c-text);margin-bottom:16px;letter-spacing:1px}
.hero-desc{font-size:16px;color:var(--c-text2);line-height:1.75;margin-bottom:28px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-features{display:flex;gap:16px;flex-wrap:wrap}
.hero-features span{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--c-text2);background:rgba(0,0,0,.35);padding:6px 14px;border-radius:var(--r-badge);border:1px solid rgba(255,255,255,.1)}
.hero-features i{color:var(--c-accent);font-size:12px}
.hero-play{position:absolute;right:60px;bottom:50px;z-index:2;width:76px;height:76px;border-radius:50%;background:rgba(201,162,39,.9);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:22px;cursor:pointer;border:2px solid rgba(244,239,233,.25);transition:all var(--tr);box-shadow:0 8px 32px rgba(0,0,0,.4)}
.hero-play:hover{transform:scale(1.08);background:var(--c-accent-hover);box-shadow:0 10px 40px rgba(201,162,39,.4)}
.hero-play:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px}
/* ==== 痛点演示 ==== */
.section-pain{padding:70px 0;background:var(--c-bg)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.section-label{display:inline-block;padding:4px 14px;border-radius:var(--r-badge);background:rgba(201,162,39,.12);color:var(--c-accent);font-size:12px;font-weight:600;letter-spacing:1px;margin-bottom:10px}
.section-title{font-size:30px;font-weight:700;line-height:1.2;color:var(--c-text)}
.section-desc{font-size:15px;color:var(--c-text2);max-width:640px;margin-top:8px;line-height:1.75}
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pain-card{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;transition:all var(--tr)}
.pain-card:hover{border-color:var(--c-accent);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.pain-icon{width:44px;height:44px;border-radius:12px;background:rgba(227,77,60,.12);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--c-red);margin-bottom:14px}
.pain-card h3{font-size:16px;font-weight:600;color:var(--c-text);margin-bottom:6px}
.pain-card p{font-size:13px;color:var(--c-text3);line-height:1.6}
/* ==== 指标看板 ==== */
.section-stats{padding:70px 0;background:var(--c-primary)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:28px 24px;text-align:center;transition:all var(--tr);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-accent);opacity:.6;transition:opacity var(--tr)}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.stat-card:hover::before{opacity:1}
.stat-number{font-size:38px;font-weight:700;color:var(--c-accent);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-name{font-size:15px;font-weight:600;color:var(--c-text);margin-top:8px}
.stat-desc{font-size:13px;color:var(--c-text3);margin-top:4px}
/* ==== 服务矩阵 ==== */
.section-services{padding:70px 0;background:var(--c-bg)}
.services-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:26px;transition:all var(--tr);position:relative}
.service-card:hover{border-color:var(--c-accent);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.service-badge{position:absolute;top:16px;right:16px;padding:3px 10px;border-radius:var(--r-badge);background:rgba(201,162,39,.15);color:var(--c-accent);font-size:11px;font-weight:600}
.service-icon{width:46px;height:46px;border-radius:12px;background:rgba(201,162,39,.1);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-accent);margin-bottom:14px}
.service-card h3{font-size:16px;font-weight:600;color:var(--c-text);margin-bottom:6px}
.service-card p{font-size:13px;color:var(--c-text3);line-height:1.6}
/* ==== 封面卡带 ==== */
.section-reel{padding:70px 0;background:var(--c-primary)}
.reel-wrapper{position:relative;margin-top:30px}
.reel-track{display:flex;gap:16px;overflow-x:auto;padding-bottom:16px;scrollbar-width:none;-ms-overflow-style:none}
.reel-track::-webkit-scrollbar{display:none}
.reel-card{flex:0 0 auto;width:190px;border-radius:var(--r-card);overflow:hidden;background:var(--c-card);border:1px solid var(--c-border);transition:all var(--tr);position:relative}
.reel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--c-accent)}
.reel-card img{width:100%;aspect-ratio:2/3;object-fit:cover;display:block}
.reel-info{position:absolute;bottom:0;left:0;right:0;padding:30px 14px 14px;background:linear-gradient(0deg,rgba(0,0,0,.88) 0%,rgba(0,0,0,.4) 60%,transparent 100%)}
.reel-info h4{font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.reel-meta{display:flex;gap:8px;font-size:11px;color:var(--c-text2)}
.reel-tag{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--r-badge);background:rgba(0,0,0,.6);font-size:11px}
.reel-score{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--r-badge);background:var(--c-accent);color:var(--c-primary);font-weight:700;font-size:11px}
/* ==== 结果对比 ==== */
.section-compare{padding:70px 0;background:var(--c-bg)}
.compare-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:stretch}
.compare-col{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:28px;position:relative}
.compare-col.highlight{border-color:var(--c-accent);box-shadow:0 0 0 1px var(--c-accent),var(--shadow-md)}
.compare-col-title{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:20px}
.compare-col.highlight .compare-col-title{color:var(--c-accent)}
.compare-col-title i{font-size:18px}
.compare-list li{display:flex;gap:10px;margin-bottom:12px;font-size:14px;color:var(--c-text2);line-height:1.6}
.compare-list li i{color:var(--c-red);font-size:14px;margin-top:2px;flex-shrink:0;width:16px;text-align:center}
.compare-col.highlight .compare-list li i{color:var(--c-green)}
.compare-vs{display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--c-accent);background:var(--c-card);border:1px solid var(--c-border);border-radius:50%;width:52px;height:52px;align-self:center;flex-shrink:0}
/* ==== 资讯区 ==== */
.section-news{padding:70px 0;background:var(--c-primary)}
.news-layout{display:grid;grid-template-columns:2fr 1fr;gap:32px}
.news-list .news-item{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--c-border);transition:all var(--tr)}
.news-list .news-item:last-child{border-bottom:none}
.news-list .news-item:hover{padding-left:8px}
.news-list .news-item:hover .news-title{color:var(--c-accent)}
.news-num{font-size:22px;font-weight:700;color:var(--c-text3);line-height:1;min-width:36px;font-variant-numeric:tabular-nums}
.news-title{font-size:14px;font-weight:500;color:var(--c-text);transition:color var(--tr);line-height:1.5;flex:1}
.news-date{font-size:12px;color:var(--c-text3);white-space:nowrap;flex-shrink:0}
.news-sidebar{display:flex;flex-direction:column;gap:24px}
.side-card{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:20px}
.side-card h3{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--c-border)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{padding:5px 14px;border-radius:var(--r-badge);background:rgba(255,255,255,.05);border:1px solid var(--c-border);font-size:12px;color:var(--c-text2);transition:all var(--tr)}
.side-tags a:hover{border-color:var(--c-accent);color:var(--c-accent);background:rgba(201,162,39,.08)}
.side-list li{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.04);font-size:13px;color:var(--c-text2);line-height:1.5;align-items:center}
.side-list li:last-child{border-bottom:none}
.side-list li::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--c-accent);flex-shrink:0}
.side-list a:hover{color:var(--c-accent)}
/* ==== FAQ ==== */
.section-faq{padding:70px 0;background:var(--c-bg)}
.faq-list{max-width:780px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item:first-child{border-top:1px solid var(--c-border)}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:16px;font-weight:600;color:var(--c-text);cursor:pointer;transition:color var(--tr);text-align:left;width:100%;background:none;border:none}
.faq-question:hover{color:var(--c-accent)}
.faq-item.active .faq-question{color:var(--c-accent)}
.faq-icon{width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid var(--c-border);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;transition:all var(--tr);color:var(--c-text2)}
.faq-item.active .faq-icon{background:var(--c-accent);color:var(--c-primary);border-color:var(--c-accent);transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-answer-inner{padding:0 0 20px;font-size:14px;color:var(--c-text2);line-height:1.75;padding-left:0}
/* ==== 转化表单 ==== */
.section-cta{padding:70px 0;background:url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;position:relative}
.section-cta::before{content:'';position:absolute;inset:0;background:rgba(18,16,14,.78)}
.cta-inner{position:relative;z-index:2;max-width:620px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:30px;font-weight:700;margin-bottom:10px}
.cta-inner>p{font-size:15px;color:var(--c-text2);margin-bottom:28px}
.cta-form{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:28px;text-align:left}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--c-text);margin-bottom:6px}
.form-group input,.form-group select{width:100%;padding:12px 14px;border-radius:var(--r-input);background:#26211C;border:1px solid var(--c-border);color:var(--c-text);font-size:14px;transition:border-color var(--tr)}
.form-group input:focus,.form-group select:focus{border-color:var(--c-accent)}
.form-group input::placeholder{color:var(--c-text3)}
.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238F8578'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.form-submit{width:100%;padding:14px;font-size:16px;font-weight:600}
.form-note{font-size:12px;color:var(--c-text3);text-align:center;margin-top:12px;line-height:1.5}
/* ==== Footer ==== */
.site-footer{background:var(--c-primary);border-top:1px solid var(--c-border);padding-top:50px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .logo-text{font-size:24px}
.footer-brand p{font-size:13px;color:var(--c-text3);margin-top:10px;line-height:1.6;max-width:260px}
.footer-col h3{font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:14px}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{font-size:13px;color:var(--c-text3);transition:color var(--tr)}
.footer-col ul a:hover{color:var(--c-accent)}
.footer-bottom{border-top:1px solid var(--c-border);padding:18px 0;text-align:center;font-size:13px;color:var(--c-text3)}
.footer-bottom a{color:var(--c-text3)}
.footer-bottom a:hover{color:var(--c-accent)}
/* ==== 响应式 ==== */
@media(max-width:1024px){
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .news-layout{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .hero-play{right:30px;bottom:30px}
}
@media(max-width:768px){
  .main-nav{position:fixed;top:64px;right:-100%;width:280px;height:calc(100vh - 64px);background:var(--c-primary);flex-direction:column;align-items:stretch;padding:20px 16px;transition:right .3s ease;box-shadow:var(--shadow-lg);border-left:1px solid var(--c-border)}
  .main-nav.open{right:0}
  .nav-link{padding:12px 16px;font-size:15px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(201,162,39,.1)}
  .header-search{display:none}
  .menu-toggle{display:flex}
  .hero{min-height:500px}
  .hero h1{font-size:28px}
  .hero-desc{font-size:14px}
  .hero-actions{flex-direction:column;align-items:flex-start}
  .hero-play{width:60px;height:60px;font-size:18px;right:20px;bottom:20px}
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .compare-grid{grid-template-columns:1fr;gap:16px}
  .compare-vs{width:40px;height:40px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .section{padding:50px 0}
  .section-title{font-size:24px}
  .stat-number{font-size:30px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .pain-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .hero h1{font-size:24px}
  .hero-features{flex-direction:column;gap:8px}
  .hero-actions .btn{width:100%}
  .reel-card{width:160px}
  .cta-form{padding:20px}
  .form-group input,.form-group select{padding:10px 12px}
  .section-title{font-size:22px}
}
/* ==== 通用状态 ==== */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
::selection{background:rgba(201,162,39,.3);color:var(--c-text)}
/* 图片加载失败占位 */
img{background:var(--c-card)}

/* roulang page: category1 */
:root {
  --c-primary: #1A1613;
  --c-bg: #12100E;
  --c-card: #211C18;
  --c-border: #3A342E;
  --c-accent: #C9A227;
  --c-accent-hover: #DDBB4A;
  --c-red: #E34D3C;
  --c-green: #74A57F;
  --c-text: #F4EFE9;
  --c-text2: #C8BEAF;
  --c-text3: #8F8578;
  --r-card: 12px;
  --r-btn: 8px;
  --r-input: 10px;
  --r-badge: 999px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,.3);
  --shadow-md: 0 6px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
  --tr: .2s ease;
  --font: 'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}
html { scroll-behavior: smooth; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--font);
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; }
button { cursor: pointer; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ==== 按钮 ==== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 30px; border-radius: var(--r-btn); font-size: 15px; font-weight: 600;
  transition: all var(--tr); cursor: pointer; border: 2px solid transparent; line-height: 1.4; white-space: nowrap;
}
.btn-primary { background: var(--c-accent); color: var(--c-primary); }
.btn-primary:hover { background: var(--c-accent-hover); transform: translateY(-2px); box-shadow: 0 4px 20px rgba(201,162,39,.35); }
.btn-outline { background: transparent; color: var(--c-text); border-color: rgba(244,239,233,.5); }
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); background: rgba(201,162,39,.08); }
.btn-dark { background: var(--c-primary); color: var(--c-text); border-color: var(--c-border); }
.btn-dark:hover { border-color: var(--c-accent); color: var(--c-accent); }
.btn:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; }
.btn-block { width: 100%; }

/* ==== 导航 ==== */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(22,19,16,.92);
  backdrop-filter: blur(8px);
  transition: all var(--tr);
}
.site-header.scrolled {
  background: #161310;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--c-border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--c-accent); display: flex; align-items: center; justify-content: center;
  color: var(--c-primary); font-size: 16px;
}
.logo-text { font-size: 22px; font-weight: 700; letter-spacing: .5px; color: var(--c-text); white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 14px; border-radius: 8px; font-size: 14px; font-weight: 500;
  color: var(--c-text2); transition: all var(--tr); position: relative;
}
.nav-link:hover { color: var(--c-accent); background: rgba(201,162,39,.08); }
.nav-link.active { color: var(--c-accent); font-weight: 600; }
.nav-link.active::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 2px;
  height: 2px; background: var(--c-accent); border-radius: 2px;
}
.header-search {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.06); border: 1px solid var(--c-border);
  border-radius: var(--r-input); padding: 6px 12px; transition: border-color var(--tr); flex-shrink: 0;
}
.header-search:focus-within { border-color: var(--c-accent); }
.header-search input { background: transparent; color: var(--c-text); font-size: 13px; width: 120px; }
.header-search input::placeholder { color: var(--c-text3); }
.header-search button { color: var(--c-text3); transition: color var(--tr); }
.header-search button:hover { color: var(--c-accent); }
.menu-toggle {
  display: none; width: 40px; height: 40px; border-radius: 8px;
  background: rgba(255,255,255,.06); border: 1px solid var(--c-border);
  color: var(--c-text); font-size: 18px; align-items: center; justify-content: center;
}
.menu-toggle:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ==== Hero ==== */
.hero {
  position: relative; min-height: 640px; display: flex; align-items: center;
  background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(18,16,14,.9) 0%, rgba(18,16,14,.68) 50%, rgba(18,16,14,.3) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 640px; padding: 80px 0 100px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 16px; border-radius: var(--r-badge);
  background: rgba(201,162,39,.15); border: 1px solid rgba(201,162,39,.3);
  color: var(--c-accent); font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 18px;
}
.hero h1 { font-size: 42px; font-weight: 700; line-height: 1.2; color: var(--c-text); margin-bottom: 16px; letter-spacing: 1px; }
.hero-desc { font-size: 16px; color: var(--c-text2); line-height: 1.8; margin-bottom: 28px; max-width: 540px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-features { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-features span {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px;
  color: var(--c-text2); background: rgba(0,0,0,.35);
  padding: 6px 14px; border-radius: var(--r-badge); border: 1px solid rgba(255,255,255,.1);
}
.hero-features i { color: var(--c-accent); font-size: 12px; }
.hero-form {
  display: flex; gap: 10px; align-items: center; max-width: 480px;
  background: rgba(22,19,16,.75); border: 1px solid var(--c-border);
  border-radius: var(--r-input); padding: 8px 8px 8px 16px; backdrop-filter: blur(4px);
}
.hero-form input { flex: 1; color: var(--c-text); font-size: 14px; min-width: 0; }
.hero-form input::placeholder { color: var(--c-text3); }
.hero-form .btn { flex-shrink: 0; padding: 10px 22px; font-size: 14px; }

/* ==== 板块通用 ==== */
.section { padding: 70px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 40px; flex-wrap: wrap; }
.section-label {
  display: inline-block; padding: 4px 14px; border-radius: var(--r-badge);
  background: rgba(201,162,39,.12); color: var(--c-accent);
  font-size: 12px; font-weight: 600; letter-spacing: 1px; margin-bottom: 10px;
}
.section-title { font-size: 30px; font-weight: 700; line-height: 1.2; color: var(--c-text); }
.section-desc { font-size: 15px; color: var(--c-text2); max-width: 600px; margin-top: 8px; line-height: 1.75; }

/* ==== 指标看板 ==== */
.stats-section { padding: 60px 0; background: linear-gradient(180deg, var(--c-bg) 0%, #17130F 100%); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card {
  background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--r-card);
  padding: 30px 24px; text-align: center; transition: all var(--tr);
}
.stat-card:hover { border-color: var(--c-accent); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.stat-number {
  font-size: 36px; font-weight: 700; color: var(--c-accent); line-height: 1.2;
  font-variant-numeric: tabular-nums; letter-spacing: 1px;
}
.stat-name { font-size: 15px; color: var(--c-text); font-weight: 600; margin-top: 8px; }
.stat-tip { font-size: 13px; color: var(--c-text3); margin-top: 4px; }

/* ==== 服务矩阵 ==== */
.service-section { background: var(--c-bg); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
  background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--r-card);
  padding: 28px 24px; transition: all var(--tr); position: relative;
}
.service-card:hover { border-color: var(--c-accent); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.service-icon {
  width: 46px; height: 46px; border-radius: 10px; background: rgba(201,162,39,.12);
  display: flex; align-items: center; justify-content: center; color: var(--c-accent); font-size: 20px; margin-bottom: 16px;
}
.service-card h3 { font-size: 17px; font-weight: 600; color: var(--c-text); margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--c-text2); line-height: 1.7; }
.hot-badge {
  position: absolute; top: 16px; right: 16px;
  background: var(--c-red); color: #fff; font-size: 11px; font-weight: 600;
  padding: 3px 10px; border-radius: var(--r-badge); letter-spacing: .5px;
}

/* ==== 封面卡带 ==== */
.strip-section {
  background: #17130F;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}
.strip-wrap { position: relative; }
.strip-track {
  display: flex; gap: 18px; overflow-x: auto; padding: 10px 4px 20px;
  scrollbar-width: none; -ms-overflow-style: none;
}
.strip-track::-webkit-scrollbar { display: none; }
.strip-card {
  flex: 0 0 auto; width: 190px; border-radius: var(--r-card); overflow: hidden;
  position: relative; background: var(--c-card); border: 1px solid var(--c-border);
  transition: all var(--tr);
}
.strip-card:hover { transform: translateY(-4px); border-color: var(--c-accent); box-shadow: var(--shadow-md); }
.strip-cover { position: relative; aspect-ratio: 2 / 3; overflow: hidden; }
.strip-cover img { width: 100%; height: 100%; object-fit: cover; }
.strip-cover::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 70%;
  background: linear-gradient(180deg, transparent 0%, rgba(18,16,14,.55) 60%, rgba(18,16,14,.92) 100%);
}
.strip-info { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 14px 16px; z-index: 2; }
.strip-title { font-size: 15px; font-weight: 600; color: var(--c-text); margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.strip-meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.strip-duration {
  display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--c-text2);
  background: rgba(0,0,0,.55); padding: 2px 10px; border-radius: var(--r-badge);
}
.strip-score {
  display: inline-flex; align-items: center; gap: 3px;
  background: var(--c-accent); color: var(--c-primary); font-size: 12px; font-weight: 700;
  padding: 2px 10px; border-radius: var(--r-badge);
}
.strip-tip { margin-top: 8px; font-size: 13px; color: var(--c-text3); text-align: center; }

/* ==== 结果对比 ==== */
.compare-section { background: var(--c-bg); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; position: relative; align-items: stretch; }
.compare-col {
  background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--r-card);
  padding: 36px 32px; position: relative;
}
.compare-col.better { border-color: var(--c-accent); background: linear-gradient(180deg, #241F19 0%, #1B1713 100%); }
.compare-col.better::before {
  content: '推荐'; position: absolute; top: -12px; left: 24px;
  background: var(--c-accent); color: var(--c-primary); font-size: 12px; font-weight: 700;
  padding: 2px 14px; border-radius: var(--r-badge); letter-spacing: 1px;
}
.compare-arrow {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--c-accent); color: var(--c-primary);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
  z-index: 3; box-shadow: var(--shadow-md); border: 3px solid var(--c-bg);
}
.compare-col h3 { font-size: 20px; font-weight: 600; color: var(--c-text); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.compare-col.better h3 { color: var(--c-accent); }
.compare-col h3 i { font-size: 18px; opacity: .8; }
.compare-list li {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: 14px; color: var(--c-text2); line-height: 1.65;
}
.compare-list li:last-child { border-bottom: none; }
.compare-list li i { margin-top: 4px; font-size: 13px; }
.compare-list .fa-check { color: var(--c-green); }
.compare-list .fa-xmark { color: var(--c-red); }

/* ==== FAQ ==== */
.faq-section { background: #17130F; border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); }
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--c-border); }
.faq-item:first-child { border-top: 1px solid var(--c-border); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 4px; font-size: 16px; font-weight: 500; color: var(--c-text);
  text-align: left; transition: color var(--tr); cursor: pointer;
}
.faq-question:hover { color: var(--c-accent); }
.faq-item.active .faq-question { color: var(--c-accent); }
.faq-icon {
  width: 24px; height: 24px; border-radius: 50%; flex-shrink: 0;
  background: rgba(201,162,39,.15); color: var(--c-accent);
  display: flex; align-items: center; justify-content: center; font-size: 13px;
  transition: transform var(--tr);
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--c-accent); color: var(--c-primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-answer-inner { padding: 0 4px 20px; font-size: 14px; color: var(--c-text2); line-height: 1.8; }

/* ==== 转化表单 ==== */
.cta-section {
  position: relative; padding: 80px 0;
  background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat fixed;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(18,16,14,.94) 0%, rgba(18,16,14,.82) 60%, rgba(18,16,14,.6) 100%);
}
.cta-inner { position: relative; z-index: 2; max-width: 620px; }
.cta-inner .section-title { margin-bottom: 10px; }
.cta-inner .section-desc { margin-bottom: 28px; }
.cta-form {
  background: rgba(28,24,20,.85); border: 1px solid var(--c-border);
  border-radius: var(--r-card); padding: 28px; backdrop-filter: blur(6px);
}
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--c-text2); margin-bottom: 6px; }
.form-control {
  width: 100%; background: #26211C; border: 1px solid var(--c-border);
  border-radius: var(--r-input); padding: 12px 16px; color: var(--c-text);
  font-size: 14px; transition: border-color var(--tr), box-shadow var(--tr);
}
.form-control:focus { border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(201,162,39,.15); }
.form-control::placeholder { color: var(--c-text3); }
select.form-control { appearance: none; background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238F8578' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 42px; cursor: pointer; }
.form-tip { font-size: 12px; color: var(--c-text3); margin-top: 14px; line-height: 1.6; }
.form-success {
  display: none; margin-top: 14px; padding: 12px 16px; border-radius: 10px;
  background: rgba(116,165,127,.15); border: 1px solid rgba(116,165,127,.3); color: var(--c-green); font-size: 14px;
}

/* ==== 页脚 ==== */
.site-footer { background: #0E0C0A; border-top: 1px solid var(--c-border); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; margin-bottom: 44px; }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { font-size: 14px; color: var(--c-text3); line-height: 1.75; max-width: 320px; }
.footer-col h3 { font-size: 15px; font-weight: 600; color: var(--c-text); margin-bottom: 16px; letter-spacing: .5px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: var(--c-text2); transition: color var(--tr); }
.footer-col a:hover { color: var(--c-accent); }
.footer-bottom {
  border-top: 1px solid var(--c-border); padding: 22px 0; text-align: center;
}
.footer-bottom p { font-size: 13px; color: var(--c-text3); }
.footer-bottom a { color: var(--c-text3); transition: color var(--tr); }
.footer-bottom a:hover { color: var(--c-accent); }

/* ==== 移动端抽屉 ==== */
.mobile-drawer {
  display: none; position: fixed; top: 64px; left: 0; right: 0; z-index: 999;
  background: #161310; border-bottom: 1px solid var(--c-border);
  padding: 16px 24px 24px; box-shadow: var(--shadow-lg);
}
.mobile-drawer.open { display: block; }
.drawer-nav { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.drawer-nav .nav-link { padding: 12px 14px; font-size: 15px; }
.drawer-search { display: flex; gap: 8px; margin-bottom: 16px; }
.drawer-search input {
  flex: 1; background: rgba(255,255,255,.06); border: 1px solid var(--c-border);
  border-radius: var(--r-input); padding: 10px 14px; color: var(--c-text); font-size: 14px;
}
.drawer-search input:focus { border-color: var(--c-accent); }
.drawer-search button {
  background: var(--c-accent); color: var(--c-primary); padding: 10px 18px;
  border-radius: var(--r-input); font-weight: 600; font-size: 14px;
}
.drawer-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.drawer-tags span {
  font-size: 13px; color: var(--c-accent); background: rgba(201,162,39,.1);
  border: 1px solid rgba(201,162,39,.25); padding: 5px 12px; border-radius: var(--r-badge);
}

/* ==== 响应式 ==== */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .header-search { display: none; }
  .hero h1 { font-size: 34px; }
}
@media (max-width: 900px) {
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-arrow { top: 50%; transform: translate(-50%, -50%) rotate(90deg); }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }
  .hero h1 { font-size: 30px; }
  .hero-actions .btn { flex: 1; }
  .hero-form { flex-direction: column; align-items: stretch; padding: 14px; }
  .hero-form .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-section { background-attachment: scroll; }
  .strip-card { width: 160px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card { padding: 20px 14px; }
  .stat-number { font-size: 28px; }
  .service-grid { grid-template-columns: 1fr; }
  .hero { min-height: 560px; }
  .hero-content { padding: 60px 0 80px; }
  .hero h1 { font-size: 26px; }
  .hero-desc { font-size: 15px; }
  .hero-form .btn { font-size: 14px; padding: 10px 16px; }
  .compare-col { padding: 26px 20px; }
  .cta-form { padding: 20px; }
  .faq-question { font-size: 15px; padding: 18px 2px; }
}
@media (max-width: 380px) {
  .stats-grid { grid-template-columns: 1fr; }
  .logo-text { font-size: 18px; }
}