/* roulang page: index */
:root{
    --primary:#0B1D2E;
    --accent:#00E88F;
    --accent-hover:#00C97A;
    --orange:#FF7A45;
    --bg:#F7F6F2;
    --card-bg:#FFFFFF;
    --text:#16202A;
    --text-secondary:#5D6B76;
    --border:#E4E7E4;
    --dark-bg:#101F2C;
    --radius:12px;
    --shadow-card:0 1px 3px rgba(11,29,46,.06);
    --shadow-hover:0 8px 24px rgba(11,29,46,.10);
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{text-decoration:none;color:inherit;transition:all .2s ease}
  button{font-family:inherit;cursor:pointer}
  input,textarea{font-family:inherit}

  .container{
    max-width:1280px;
    margin:0 auto;
    padding:0 24px;
  }
  @media(max-width:768px){
    .container{padding:0 16px}
  }

  /* 顶部信息条 */
  .topbar{
    background:var(--dark-bg);
    height:36px;
    color:#9AA7B1;
    font-size:13px;
    position:relative;
    z-index:50;
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:100%;
  }
  .topbar-domain{
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    letter-spacing:.02em;
    font-size:13px;
    color:#9AA7B1;
  }
  .topbar-right{
    display:flex;
    align-items:center;
    gap:8px;
  }
  .topbar-dot{
    width:7px;height:7px;
    background:var(--accent);
    border-radius:50%;
    animation:pulse-dot 1.6s ease-in-out infinite;
  }
  @keyframes pulse-dot{
    0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(0,232,143,.5)}
    50%{opacity:.7;box-shadow:0 0 0 4px rgba(0,232,143,.1)}
  }
  @media(max-width:640px){
    .topbar-right span:not(.topbar-dot){display:none}
  }

  /* 主导航 */
  .site-header{
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
    position:sticky;
    top:36px;
    z-index:100;
  }
  @media(max-width:768px){
    .site-header{top:36px}
  }
  .nav-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:72px;
  }
  .logo{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    width:36px;height:36px;
    background:var(--accent);
    border-radius:8px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-weight:800;
    font-size:20px;
    color:var(--primary);
  }
  .logo-text strong{
    font-size:18px;
    font-weight:700;
    color:var(--primary);
    letter-spacing:.01em;
    display:block;
    line-height:1.2;
  }
  .logo-text small{
    font-size:11px;
    color:var(--text-secondary);
    display:block;
    line-height:1.2;
    letter-spacing:.04em;
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:28px;
  }
  .nav-links a{
    font-size:14px;
    font-weight:600;
    color:var(--text);
    padding:6px 0;
    position:relative;
    white-space:nowrap;
  }
  .nav-links a::after{
    content:'';
    position:absolute;
    left:0;bottom:-2px;
    width:100%;height:2px;
    background:var(--accent);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .25s ease;
    border-radius:2px;
  }
  .nav-links a:hover{color:var(--accent)}
  .nav-links a:hover::after{transform:scaleX(1)}
  .nav-links a.active{color:var(--primary)}
  .nav-links a.active::after{transform:scaleX(1)}
  .nav-cta{
    background:var(--accent);
    color:var(--primary);
    font-weight:700;
    font-size:14px;
    padding:10px 22px;
    border-radius:999px;
    transition:all .2s ease;
    white-space:nowrap;
  }
  .nav-cta:hover{
    background:var(--accent-hover);
    transform:translateY(-1px);
    box-shadow:0 4px 12px rgba(0,232,143,.25);
  }
  .menu-toggle{
    display:none;
    background:none;
    border:none;
    font-size:24px;
    color:var(--primary);
    padding:4px;
  }
  .mobile-drawer{
    display:none;
    position:fixed;
    inset:0;
    background:var(--primary);
    z-index:200;
    flex-direction:column;
    padding:24px;
    padding-top:80px;
  }
  .mobile-drawer.open{display:flex}
  .mobile-drawer a{
    color:#fff;
    font-size:20px;
    line-height:56px;
    font-weight:600;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .mobile-drawer .drawer-close{
    position:absolute;
    top:16px;right:16px;
    background:none;
    border:none;
    color:#fff;
    font-size:32px;
    line-height:1;
  }
  .mobile-drawer .drawer-contact{
    margin-top:auto;
    color:#9AA7B1;
    font-size:14px;
  }
  @media(max-width:768px){
    .nav-links,.nav-cta{display:none}
    .menu-toggle{display:block}
  }

  /* 通用按钮 */
  .btn-primary{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:var(--accent);
    color:var(--primary);
    font-weight:700;
    font-size:15px;
    padding:14px 28px;
    border-radius:999px;
    transition:all .2s ease;
    border:none;
    line-height:1;
  }
  .btn-primary:hover{
    background:var(--accent-hover);
    transform:translateY(-2px);
    box-shadow:0 8px 20px rgba(0,232,143,.3);
  }
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:transparent;
    color:#fff;
    font-weight:600;
    font-size:15px;
    padding:13px 26px;
    border-radius:999px;
    border:2px solid rgba(255,255,255,.8);
    transition:all .2s ease;
  }
  .btn-outline:hover{
    background:#fff;
    color:var(--primary);
  }
  .btn-dark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:var(--primary);
    color:#fff;
    font-weight:600;
    font-size:15px;
    padding:13px 26px;
    border-radius:999px;
    transition:all .2s ease;
  }
  .btn-dark:hover{background:#1b3a52;transform:translateY(-2px)}

  /* Hero */
  .hero{
    background:var(--primary);
    position:relative;
    overflow:hidden;
    color:#fff;
  }
  .hero::before{
    content:'';
    position:absolute;
    inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
    background-size:60px 60px;
    pointer-events:none;
  }
  .hero::after{
    content:'';
    position:absolute;
    top:0;right:0;
    width:60%;
    height:100%;
    background:url('/assets/images/backpic/back-1.png') right center / cover no-repeat;
    opacity:.12;
    pointer-events:none;
  }
  .hero-grid{
    display:grid;
    grid-template-columns:7fr 5fr;
    gap:48px;
    align-items:center;
    padding-top:80px;
    padding-bottom:96px;
    position:relative;
    z-index:1;
  }
  @media(max-width:1024px){
    .hero-grid{grid-template-columns:1fr;padding-top:48px;padding-bottom:64px}
  }
  .badge-outline{
    display:inline-flex;
    align-items:center;
    gap:6px;
    border:1px solid var(--accent);
    color:var(--accent);
    font-size:12px;
    font-weight:700;
    letter-spacing:.12em;
    padding:6px 14px;
    border-radius:999px;
    margin-bottom:20px;
    text-transform:uppercase;
  }
  .hero h1{
    font-size:48px;
    line-height:56px;
    font-weight:700;
    letter-spacing:-.02em;
    margin-bottom:16px;
    color:#fff;
  }
  @media(max-width:640px){
    .hero h1{font-size:32px;line-height:40px}
  }
  .hero-sub{
    font-size:16px;
    color:#9AA7B1;
    margin-bottom:32px;
    letter-spacing:.02em;
  }
  .hero-btns{
    display:flex;
    gap:16px;
    flex-wrap:wrap;
  }
  .data-panel{
    background:rgba(255,255,255,.05);
    backdrop-filter:blur(8px);
    border:1px solid rgba(255,255,255,.08);
    border-radius:16px;
    padding:28px;
  }
  .data-panel-title{
    font-size:13px;
    color:#9AA7B1;
    margin-bottom:20px;
    display:flex;
    align-items:center;
    gap:8px;
  }
  .data-panel-title .live-dot{
    width:7px;height:7px;
    background:var(--accent);
    border-radius:50%;
    animation:pulse-dot 1.6s infinite;
  }
  .data-panel .metric-row{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    padding:14px 0;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .data-panel .metric-row:last-of-type{border-bottom:none}
  .data-panel .metric-num{
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    font-size:32px;
    font-weight:700;
    color:#fff;
    line-height:1;
  }
  .data-panel .metric-label{
    font-size:13px;
    color:#9AA7B1;
  }
  .data-panel .metric-trend{
    font-size:12px;
    font-weight:600;
  }
  .data-panel .metric-trend.up{color:var(--accent)}
  .data-panel .metric-trend.down{color:var(--orange)}
  .data-panel-img{
    margin-top:16px;
    border-radius:8px;
    overflow:hidden;
    height:90px;
    background:url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  }
  @media(max-width:1024px){
    .data-panel{width:100%}
  }

  /* 指标看板 */
  .section{padding:96px 0}
  @media(max-width:768px){.section{padding:64px 0}}
  .section-head{
    margin-bottom:48px;
    text-align:center;
  }
  .section-head h2{
    font-size:32px;
    line-height:40px;
    font-weight:700;
    letter-spacing:-.02em;
    color:var(--text);
  }
  .section-head p{
    margin-top:8px;
    color:var(--text-secondary);
    font-size:15px;
  }
  .stats-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
  }
  @media(max-width:1024px){
    .stats-grid{grid-template-columns:repeat(2,1fr)}
  }
  .stat-card{
    background:var(--card-bg);
    border-radius:var(--radius);
    padding:24px;
    border-left:4px solid var(--accent);
    box-shadow:var(--shadow-card);
    transition:all .2s ease;
  }
  .stat-card:hover{
    box-shadow:var(--shadow-hover);
    transform:translateY(-4px);
  }
  .stat-card .stat-num{
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    font-size:56px;
    font-weight:700;
    color:var(--primary);
    line-height:1;
    margin-bottom:8px;
  }
  .stat-card .stat-label{
    font-size:14px;
    color:var(--text-secondary);
    margin-bottom:8px;
  }
  .stat-card .stat-trend{
    font-size:13px;
    font-weight:600;
  }
  .stat-card .stat-trend .up{color:var(--accent)}
  .stat-card .stat-trend .down{color:var(--orange)}

  /* 服务矩阵 */
  .services-section{
    background:#EFEDE8;
    padding:96px 0;
  }
  @media(max-width:768px){.services-section{padding:64px 0}}
  .services-row-1{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
    margin-bottom:24px;
  }
  .services-row-2{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
    margin-bottom:24px;
  }
  .services-row-3{
    display:grid;
    grid-template-columns:1fr;
  }
  @media(max-width:768px){
    .services-row-1,.services-row-2{grid-template-columns:1fr}
  }
  .service-card{
    background:var(--card-bg);
    border-radius:var(--radius);
    padding:32px;
    border:1px solid #E2E4E6;
    box-shadow:var(--shadow-card);
    transition:all .2s ease;
    position:relative;
    overflow:hidden;
  }
  .service-card:hover{
    box-shadow:var(--shadow-hover);
    border-color:var(--accent);
    transform:translateY(-4px);
  }
  .service-card .svc-num{
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    font-size:14px;
    font-weight:700;
    color:var(--accent);
    letter-spacing:.08em;
    margin-bottom:12px;
  }
  .service-card .svc-icon{
    width:48px;height:48px;
    margin-bottom:20px;
    color:var(--primary);
  }
  .service-card h3{
    font-size:20px;
    font-weight:600;
    margin-bottom:12px;
    color:var(--text);
  }
  .service-card p{
    font-size:14px;
    color:var(--text-secondary);
    line-height:24px;
    margin-bottom:20px;
  }
  .service-link{
    font-size:14px;
    font-weight:600;
    color:var(--primary);
    display:inline-flex;
    align-items:center;
    gap:4px;
  }
  .service-link:hover{
    color:var(--accent);
    gap:8px;
  }
  .service-card.dark{
    background:var(--dark-bg);
    border-color:rgba(255,255,255,.08);
    color:#fff;
  }
  .service-card.dark h3{color:#fff}
  .service-card.dark p{color:#9AA7B1}
  .service-card.dark .svc-icon{color:var(--accent)}
  .service-card.dark .service-link{color:#fff}
  .service-card.dark .service-link:hover{color:var(--accent)}
  .service-card.wide{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:32px;
    align-items:center;
    background:var(--primary);
    color:#fff;
    border:none;
  }
  .service-card.wide h3{color:#fff}
  .service-card.wide p{color:#9AA7B1}
  .service-card.wide .svc-icon{color:var(--accent)}
  .service-card.wide .service-link{color:var(--accent)}
  .service-card.wide .service-link:hover{gap:8px}
  .service-card.wide::after{
    content:'';
    position:absolute;
    right:-40px;top:-40px;
    width:200px;height:200px;
    background:var(--accent);
    opacity:.06;
    clip-path:polygon(100% 0, 100% 100%, 0 0);
  }
  @media(max-width:768px){
    .service-card.wide{grid-template-columns:1fr}
  }

  /* 对比区 */
  .compare-section{padding:96px 0}
  @media(max-width:768px){.compare-section{padding:64px 0}}
  .compare-grid{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    gap:32px;
    align-items:stretch;
  }
  @media(max-width:1024px){
    .compare-grid{grid-template-columns:1fr;gap:24px}
  }
  .compare-card{
    border-radius:var(--radius);
    padding:32px;
    background:var(--card-bg);
    border:1px solid var(--border);
    box-shadow:var(--shadow-card);
  }
  .compare-card.old{
    background:#F1F2F4;
    border-color:#E0E2E0;
  }
  .compare-card.mksports{
    background:var(--card-bg);
    border:2px solid var(--accent);
  }
  .compare-card h3{
    font-size:20px;
    font-weight:700;
    margin-bottom:20px;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .compare-card.old h3{color:#9AA7B1}
  .compare-card.mksports h3{color:var(--primary)}
  .compare-card .compare-badge{
    font-size:12px;
    font-weight:700;
    padding:4px 12px;
    border-radius:999px;
  }
  .compare-card.old .compare-badge{
    background:#E4E7E4;
    color:#5D6B76;
  }
  .compare-card.mksports .compare-badge{
    background:rgba(0,232,143,.15);
    color:#00A860;
  }
  .compare-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:14px 0;
    border-bottom:1px solid var(--border);
    font-size:14px;
  }
  .compare-row:last-child{border-bottom:none}
  .compare-row .param{color:var(--text-secondary)}
  .compare-row .old-value{
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    color:#9AA7B1;
    text-decoration:line-through;
    font-size:14px;
  }
  .compare-row .new-value{
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    color:var(--accent);
    font-weight:700;
    font-size:18px;
  }
  .compare-vs{
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .compare-vs span{
    width:56px;height:56px;
    border-radius:50%;
    background:var(--primary);
    color:var(--accent);
    font-family:"DIN Alternate",monospace;
    font-weight:700;
    font-size:16px;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .compare-img{
    margin-top:20px;
    border-radius:8px;
    overflow:hidden;
    height:100px;
    background:url('/assets/images/coverpic/cover-1.webp') center / cover no-repeat;
  }

  /* 资讯区 */
  .news-section{
    background:var(--bg);
    padding:96px 0;
  }
  @media(max-width:768px){.news-section{padding:64px 0}}
  .news-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    margin-bottom:32px;
  }
  .news-head h2{
    font-size:32px;
    font-weight:700;
    letter-spacing:-.02em;
  }
  .news-view-all{
    font-size:14px;
    font-weight:600;
    color:var(--text-secondary);
    display:inline-flex;
    align-items:center;
    gap:4px;
  }
  .news-view-all:hover{color:var(--accent);gap:8px}
  .news-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
  }
  @media(max-width:1024px){
    .news-grid{grid-template-columns:repeat(2,1fr)}
  }
  @media(max-width:640px){
    .news-grid{grid-template-columns:1fr}
  }
  .news-card{
    background:var(--card-bg);
    border-radius:var(--radius);
    overflow:hidden;
    border:1px solid #E2E4E6;
    box-shadow:var(--shadow-card);
    transition:all .25s ease;
    display:block;
  }
  .news-card:hover{
    box-shadow:var(--shadow-hover);
    border-color:var(--accent);
    transform:translateY(-4px);
  }
  .news-card .thumb{
    height:180px;
    background:url('/assets/images/coverpic/cover-2.png') center / cover no-repeat;
    transition:transform .4s ease;
  }
  .news-card:hover .thumb{transform:scale(1.03)}
  .news-card .news-body{
    padding:24px;
  }
  .news-card .news-cat{
    display:inline-block;
    background:rgba(255,122,69,.1);
    color:var(--orange);
    font-size:12px;
    font-weight:600;
    padding:4px 12px;
    border-radius:999px;
    margin-bottom:12px;
  }
  .news-card h3{
    font-size:18px;
    font-weight:600;
    line-height:26px;
    margin-bottom:10px;
    color:var(--text);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .news-card p{
    font-size:14px;
    color:var(--text-secondary);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    margin-bottom:16px;
  }
  .news-card .news-meta{
    display:flex;
    justify-content:space-between;
    align-items:center;
    font-size:13px;
    color:#9AA7B1;
  }
  .news-card .news-meta .date{
    font-family:"DIN Alternate","Barlow Condensed",monospace;
  }
  .news-card .news-meta .read-more{
    color:var(--primary);
    font-weight:600;
    display:inline-flex;
    align-items:center;
    gap:4px;
  }
  .news-card:hover .read-more{color:var(--accent);gap:8px}
  .news-empty{
    grid-column:1 / -1;
    text-align:center;
    padding:80px 20px;
    background:var(--card-bg);
    border-radius:var(--radius);
    border:1px dashed var(--border);
  }
  .news-empty .empty-icon{
    width:40px;height:40px;
    border-radius:50%;
    background:#F1F2F4;
    color:#9AA7B1;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:20px;
    margin:0 auto 16px;
  }
  .news-empty p{
    font-size:15px;
    color:var(--text-secondary);
  }

  /* FAQ */
  .faq-section{
    background:var(--primary);
    padding:96px 0;
  }
  @media(max-width:768px){.faq-section{padding:64px 0}}
  .faq-section .section-head h2{color:#fff}
  .faq-section .section-head p{color:#9AA7B1}
  .faq-list{
    max-width:800px;
    margin:0 auto;
  }
  .faq-item{
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    border-radius:var(--radius);
    margin-bottom:12px;
    overflow:hidden;
    transition:all .2s ease;
  }
  .faq-item:hover{background:rgba(255,255,255,.08)}
  .faq-item.open{border-color:var(--accent)}
  .faq-question{
    width:100%;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 24px;
    background:none;
    border:none;
    color:#fff;
    font-size:16px;
    font-weight:600;
    text-align:left;
  }
  .faq-icon{
    width:24px;height:24px;
    border:1px solid rgba(255,255,255,.4);
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:16px;
    transition:transform .3s ease;
    flex-shrink:0;
    line-height:1;
    color:#fff;
  }
  .faq-item.open .faq-icon{
    transform:rotate(45deg);
    border-color:var(--accent);
    color:var(--accent);
  }
  .faq-answer-wrap{
    display:grid;
    grid-template-rows:0fr;
    transition:grid-template-rows .3s ease;
  }
  .faq-item.open .faq-answer-wrap{
    grid-template-rows:1fr;
  }
  .faq-answer{
    overflow:hidden;
  }
  .faq-answer p{
    padding:0 24px 20px;
    color:#9AA7B1;
    font-size:14px;
    line-height:28px;
  }

  /* 表单 */
  .contact-section{
    padding:96px 0;
    background:var(--bg);
  }
  @media(max-width:768px){.contact-section{padding:64px 0}}
  .contact-grid{
    display:grid;
    grid-template-columns:5fr 7fr;
    gap:64px;
    align-items:center;
  }
  @media(max-width:1024px){
    .contact-grid{grid-template-columns:1fr;gap:40px}
  }
  .contact-left h2{
    font-size:32px;
    font-weight:700;
    letter-spacing:-.02em;
    margin-bottom:16px;
  }
  .contact-left .lead{
    color:var(--text-secondary);
    font-size:15px;
    margin-bottom:32px;
    line-height:28px;
  }
  .contact-points{
    display:flex;
    flex-direction:column;
    gap:16px;
    margin-bottom:32px;
  }
  .contact-point{
    display:flex;
    align-items:center;
    gap:12px;
    font-size:15px;
  }
  .contact-point .check{
    width:24px;height:24px;
    border-radius:50%;
    background:var(--accent);
    color:var(--primary);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:13px;
    font-weight:700;
    flex-shrink:0;
  }
  .contact-info{
    display:flex;
    flex-direction:column;
    gap:8px;
  }
  .contact-info a{
    color:var(--text-secondary);
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    font-size:16px;
  }
  .contact-info a:hover{color:var(--accent)}
  .contact-form-wrap{
    background:var(--card-bg);
    border-radius:var(--radius);
    padding:40px;
    box-shadow:var(--shadow-card);
    border:1px solid #E2E4E6;
  }
  @media(max-width:640px){
    .contact-form-wrap{padding:24px}
  }
  .form-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
  }
  @media(max-width:640px){
    .form-grid{grid-template-columns:1fr}
  }
  .form-group{
    display:flex;
    flex-direction:column;
    gap:6px;
  }
  .form-group.full{grid-column:1 / -1}
  .form-group label{
    font-size:12px;
    font-weight:700;
    color:var(--text-secondary);
    text-transform:uppercase;
    letter-spacing:.04em;
  }
  .form-group input,
  .form-group textarea{
    height:44px;
    padding:0 16px;
    background:#F1F2F4;
    border:1px solid transparent;
    border-radius:8px;
    font-size:14px;
    color:var(--text);
    outline:none;
    transition:all .2s ease;
    width:100%;
  }
  .form-group textarea{
    height:auto;
    min-height:100px;
    padding:12px 16px;
    resize:vertical;
  }
  .form-group input::placeholder,
  .form-group textarea::placeholder{color:#9AA7B1}
  .form-group input:focus,
  .form-group textarea:focus{
    border-color:var(--accent);
    background:#fff;
    box-shadow:0 0 0 4px rgba(0,232,143,.15);
  }
  .form-submit{
    margin-top:24px;
  }
  .form-submit .btn-primary{
    width:100%;
    height:48px;
    font-size:15px;
  }
  .form-success{
    display:none;
    background:rgba(0,232,143,.08);
    color:#00A860;
    font-size:14px;
    padding:12px 16px;
    border-radius:8px;
    margin-top:16px;
    align-items:center;
    gap:8px;
  }
  .form-success.show{display:flex}

  /* 页脚 */
  .site-footer{
    background:var(--primary);
    color:#9AA7B1;
    padding:64px 0 0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1fr;
    gap:40px;
    padding-bottom:48px;
  }
  @media(max-width:1024px){
    .footer-grid{grid-template-columns:1fr 1fr}
  }
  @media(max-width:640px){
    .footer-grid{grid-template-columns:1fr}
  }
  .footer-brand .logo-text strong{color:#fff}
  .footer-brand .logo-text small{color:#9AA7B1}
  .footer-brand .footer-desc{
    margin-top:16px;
    font-size:14px;
    line-height:24px;
  }
  .footer-brand .footer-domain{
    margin-top:16px;
    font-family:"DIN Alternate","Barlow Condensed",monospace;
    font-size:15px;
    color:#fff;
    letter-spacing:.02em;
  }
  .footer-col h4{
    font-size:14px;
    font-weight:700;
    color:#fff;
    margin-bottom:20px;
  }
  .footer-col ul{
    list-style:none;
  }
  .footer-col ul li{
    margin-bottom:8px;
  }
  .footer-col ul li a{
    font-size:14px;
    color:#9AA7B1;
    line-height:24px;
    display:inline-block;
  }
  .footer-col ul li a:hover{
    color:var(--accent);
    padding-left:2px;
  }
  .footer-col .contact-line{
    font-size:14px;
    color:#9AA7B1;
    line-height:24px;
    margin-bottom:8px;
    display:block;
  }
  .footer-copyright{
    border-top:1px solid rgba(255,255,255,.1);
    padding:24px 0;
    text-align:center;
    font-size:12px;
    color:#6B7A89;
  }

  /* 通用section间距 */
  .section-title-center{
    text-align:center;
    margin-bottom:48px;
  }
  .section-title-center h2{
    font-size:32px;
    font-weight:700;
    letter-spacing:-.02em;
  }
  .section-title-center p{
    margin-top:8px;
    color:var(--text-secondary);
    font-size:15px;
  }

/* roulang page: category1 */
:root {
  --primary: #0B1D2E;
  --accent: #00E88F;
  --accent2: #FF7A45;
  --bg-main: #F7F6F2;
  --card-bg: #FFFFFF;
  --text-body: #16202A;
  --text-sub: #5D6B76;
  --border-color: #E4E7E4;
  --dark-block: #101F2C;
  --font-num: "DIN Alternate","Barlow Condensed",monospace;
  --radius-card: 12px;
  --radius-btn: 999px;
  --shadow-card: 0 1px 3px rgba(11,29,46,.06);
  --shadow-hover: 0 8px 24px rgba(11,29,46,.10);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background-color: var(--bg-main);
  color: var(--text-body);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.font-num { font-family: var(--font-num); letter-spacing: .02em; }

/* 顶部信息条 */
.top-bar { background: var(--dark-block); height: 36px; font-size: 13px; color: #9AA7B1; }
.top-bar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.top-bar .dot-pulse { display: inline-block; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.8); } }

/* 主导航 */
.site-nav {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-nav .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--accent); color: var(--primary);
  font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; box-shadow: 0 2px 8px rgba(0,232,143,.3);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 18px; font-weight: 800; color: var(--primary); letter-spacing: -.01em; }
.logo-text small { font-size: 11px; color: var(--text-sub); letter-spacing: .04em; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 14px; font-weight: 600; color: var(--text-body);
  padding-bottom: 4px; position: relative; transition: color .2s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--text-body); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--accent); border-radius: 1px;
}
.nav-cta {
  background: var(--accent); color: var(--primary);
  font-weight: 700; font-size: 14px; height: 40px; padding: 0 22px;
  border-radius: 999px; border: none; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all .25s; white-space: nowrap;
}
.nav-cta:hover { background: #00f09a; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,232,143,.28); }
.burger { width: 40px; height: 40px; border: none; background: transparent; cursor: pointer; display: flex; align-items: center; justify-content: center; border-radius: 8px; }
.burger:hover { background: rgba(11,29,46,.05); }
.burger svg { width: 22px; height: 22px; stroke: var(--primary); }

/* 移动端抽屉 */
.mobile-drawer {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--primary); z-index: 100;
  display: flex; flex-direction: column; padding: 32px 28px;
  transform: translateX(100%); transition: transform .3s ease;
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer .drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.mobile-drawer .drawer-close { background: transparent; border: none; color: #fff; font-size: 28px; cursor: pointer; line-height: 1; }
.mobile-drawer a {
  color: rgba(255,255,255,.9); font-size: 20px; line-height: 56px;
  border-bottom: 1px solid rgba(255,255,255,.08); transition: color .2s;
}
.mobile-drawer a:hover { color: var(--accent); }
.mobile-drawer .drawer-contact { margin-top: auto; color: #9AA7B1; font-size: 14px; }

/* 按钮 */
.btn-primary {
  background: var(--accent); color: var(--primary); font-weight: 700;
  height: 48px; padding: 0 28px; border-radius: 999px; border: none;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; text-decoration: none; font-size: 16px;
  transition: all .25s; white-space: nowrap;
}
.btn-primary:hover { background: #00f09a; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0,232,143,.3); }
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent; color: var(--primary); font-weight: 600;
  border: 2px solid rgba(11,29,46,.25); height: 48px; padding: 0 24px;
  border-radius: 999px; cursor: pointer; display: inline-flex; align-items: center;
  justify-content: center; gap: 8px; text-decoration: none; font-size: 16px;
  transition: all .25s; white-space: nowrap;
}
.btn-outline:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Hero */
.hero { background: #EFEDE8; position: relative; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(11,29,46,.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(11,29,46,.03) 1px, transparent 1px);
  background-size: 40px 40px; pointer-events: none;
}
.hero-badge {
  display: inline-block; border: 1px solid var(--accent); color: var(--primary);
  border-radius: 12px; padding: 5px 14px; font-size: 13px; font-weight: 700;
  letter-spacing: .06em; background: rgba(0,232,143,.1);
}
.hero h1 {
  font-size: 44px; line-height: 56px; font-weight: 700;
  color: var(--primary); letter-spacing: -.02em; margin: 16px 0 10px;
}
.hero-subtitle { font-size: 18px; color: var(--text-sub); line-height: 28px; margin-bottom: 28px; }
.hero-img-wrap { border-radius: 12px; overflow: hidden; box-shadow: 0 12px 40px rgba(11,29,46,.12); }
.hero-img-wrap img { width: 100%; height: 420px; object-fit: cover; }

/* 核心能力 */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 { font-size: 32px; font-weight: 700; color: var(--primary); letter-spacing: -.02em; margin-bottom: 12px; }
.section-head p { color: var(--text-sub); font-size: 16px; line-height: 28px; }
.numbered-block { display: flex; gap: 32px; padding: 44px 0; border-bottom: 1px solid var(--border-color); align-items: flex-start; }
.numbered-block:first-child { padding-top: 0; }
.numbered-block:last-child { border-bottom: none; padding-bottom: 0; }
.numbered-block .num { font-size: 60px; font-weight: 700; font-family: var(--font-num); color: #D8DCD8; line-height: 1; flex-shrink: 0; width: 90px; }
.numbered-block .content { flex: 1; }
.numbered-block h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.numbered-block p { color: var(--text-sub); font-size: 15px; line-height: 28px; max-width: 660px; }
.numbered-block .marker { width: 4px; background: var(--accent); border-radius: 2px; flex-shrink: 0; align-self: stretch; min-height: 80px; }

/* 数据条 */
.data-bar { background: var(--primary); position: relative; overflow: hidden; }
.data-bar::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 40px 40px; pointer-events: none;
}
.data-num { font-family: var(--font-num); font-size: 52px; font-weight: 700; color: var(--accent); line-height: 1.1; }
.data-label { font-size: 14px; color: #9AA7B1; margin-top: 8px; letter-spacing: .02em; }

/* 场景卡 */
.scene-card { background: var(--card-bg); border-radius: 12px; overflow: hidden; border: 1px solid var(--border-color); box-shadow: var(--shadow-card); transition: transform .25s, box-shadow .25s, border-color .25s; }
.scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--accent); }
.scene-card img { width: 100%; height: 200px; object-fit: cover; }
.scene-card-body { padding: 24px; }
.scene-card-body h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.scene-card-body p { font-size: 14px; color: var(--text-sub); line-height: 26px; }

/* CTA */
.cta-section { background: #fff; }
.cta-card { background: var(--primary); border-radius: 16px; padding: 56px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-card::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 36px 36px; pointer-events: none;
}
.cta-card h2 { font-size: 32px; font-weight: 700; color: #fff; letter-spacing: -.02em; position: relative; }
.cta-card p { color: #9AA7B1; font-size: 16px; max-width: 560px; margin: 16px auto 28px; position: relative; }
.cta-phone { color: #9AA7B1; font-size: 14px; margin-top: 20px; font-family: var(--font-num); position: relative; display: inline-block; }

/* 页脚 */
.site-footer { background: var(--primary); color: #9AA7B1; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding: 56px 0 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text strong { color: #fff; }
.footer-brand .logo-text small { color: #9AA7B1; }
.footer-desc { font-size: 14px; line-height: 28px; color: #9AA7B1; margin-bottom: 12px; max-width: 260px; }
.footer-domain { font-family: var(--font-num); font-size: 13px; color: #6B7A89; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col a { color: #9AA7B1; text-decoration: none; transition: all .2s; font-size: 14px; line-height: 32px; }
.footer-col a:hover { color: var(--accent); padding-left: 2px; }
.contact-line { display: block; font-size: 14px; line-height: 32px; }
.footer-copyright { border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; color: #6B7A89; text-align: center; padding: 20px 0; }

/* 区块间距 */
.section-padding { padding: 96px 0; }
.section-padding-md { padding: 64px 0; }

/* 响应式 */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav-links { gap: 18px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .section-padding { padding: 64px 0; }
  .section-padding-md { padding: 48px 0; }
  .hero h1 { font-size: 32px; line-height: 40px; }
  .hero-img-wrap img { height: 280px; }
  .desktop-only { display: none !important; }
  .mobile-drawer { padding: 24px 20px; }
  .numbered-block { flex-direction: column; gap: 16px; padding: 36px 0; }
  .numbered-block .num { font-size: 48px; width: auto; }
  .numbered-block .marker { display: none; }
  .data-num { font-size: 38px; }
  .cta-card { padding: 40px 24px; }
  .cta-card h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero h1 { font-size: 28px; line-height: 38px; }
  .section-head h2 { font-size: 26px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .burger { display: flex; }
}
/* 1200以上导航显示 */
@media (min-width: 769px) {
  .burger { display: none !important; }
}

/* roulang page: article */
:root{
  --deep:#0B1D2E;
  --deep-2:#101F2C;
  --accent:#00E88F;
  --orange:#FF7A45;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --ink:#16202A;
  --muted:#5D6B76;
  --line:#E4E7E4;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 3px rgba(11,29,46,.06);
  --shadow-lg:0 8px 24px rgba(11,29,46,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,figure,ul,ol,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit;color:inherit}
.container{max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px}
@media(max-width:640px){.container{padding-left:16px;padding-right:16px}}

/* 顶部信息条 */
.topbar{background:var(--deep-2);color:#9AA7B1;font-size:13px;height:36px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.topbar .domain{font-family:"DIN Alternate","Barlow Condensed",monospace;letter-spacing:.02em}
.topbar .actions{display:flex;align-items:center;gap:12px}
.dot-pulse{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(0,232,143,.5);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,232,143,.45)}70%{box-shadow:0 0 0 7px rgba(0,232,143,0)}100%{box-shadow:0 0 0 0 rgba(0,232,143,0)}}
@media(max-width:640px){.topbar .actions .hide-sm{display:none}}

/* 导航 */
.main-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.main-header.scrolled{box-shadow:0 4px 16px rgba(11,29,46,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:10px;background:var(--accent);color:var(--deep);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:22px;line-height:1}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text strong{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--deep)}
.logo-text small{font-size:11px;color:var(--muted);margin-top:2px;letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-size:14px;font-weight:600;color:var(--ink);position:relative;padding:8px 2px;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .25s ease}
.nav-links a:hover{color:var(--accent)}
.nav-links a.active{color:var(--deep)}
.nav-links a.active::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:16px}
.nav-toggle{display:none;background:none;border:0;width:40px;height:40px;border-radius:8px;cursor:pointer;font-size:20px;color:var(--deep);align-items:center;justify-content:center}
.nav-toggle:hover{background:#F1F2F4}

/* 移动端抽屉 */
.mobile-nav{position:fixed;inset:0;background:var(--deep);z-index:200;visibility:hidden;opacity:0;transform:translateY(-4%);transition:opacity .25s,transform .25s,visibility .25s;padding:28px 24px;overflow-y:auto}
.mobile-nav.open{visibility:visible;opacity:1;transform:translateY(0)}
.mobile-nav .logo-text strong{color:#fff}
.mobile-nav .logo-text small{color:#8A98A3}
.mobile-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px}
.mobile-close{background:none;border:0;color:#fff;font-size:28px;cursor:pointer;width:40px;height:40px;border-radius:8px;transition:background .2s}
.mobile-close:hover{background:rgba(255,255,255,.1)}
.mobile-link{display:block;color:#fff;font-size:20px;font-weight:600;line-height:52px;border-bottom:1px solid rgba(255,255,255,.08);transition:color .2s,padding-left .2s}
.mobile-link:hover{color:var(--accent);padding-left:6px}
.mobile-contact{margin-top:auto;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);color:#9AA7B1;font-size:14px;line-height:2}

/* 按钮 */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 24px;border-radius:999px;background:var(--accent);color:var(--deep);font-size:14px;font-weight:700;transition:all .2s ease;border:2px solid var(--accent);cursor:pointer;white-space:nowrap}
.btn-primary:hover{background:#33f0a8;border-color:#33f0a8;transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,232,143,.25)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 24px;border-radius:999px;border:2px solid rgba(255,255,255,.9);color:#fff;font-size:14px;font-weight:600;background:transparent;transition:all .2s ease}
.btn-outline:hover{background:#fff;color:var(--deep)}
.btn-primary:focus-visible,.btn-outline:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* 面包屑 */
.breadcrumb-bar{background:#EFEDE8;border-bottom:1px solid var(--line);padding:14px 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);overflow:hidden}
.breadcrumb a{color:var(--muted);transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:#B8C0C6}
.breadcrumb .current{color:var(--ink);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:420px}

/* 文章头部 */
.article-page{padding:56px 0 24px}
.article-header{max-width:860px;margin:0 auto;padding:0 24px}
.article-badge{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;background:rgba(255,122,69,.1);color:var(--orange);font-size:12px;font-weight:700;letter-spacing:.02em}
.article-header h1{font-size:40px;line-height:1.3;font-weight:800;color:var(--deep);letter-spacing:-.02em;margin:18px 0 14px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted)}
.article-meta .article-date{font-family:"DIN Alternate","Barlow Condensed",monospace;font-size:14px}
@media(max-width:768px){.article-header h1{font-size:28px;line-height:1.35}}

/* 正文卡片 */
.article-wrap{max-width:820px;margin:32px auto 0;padding:0 24px}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:48px}
.article-body{max-width:100%}
.article-body p{font-size:16px;line-height:1.9;color:#2A3640;margin:22px 0}
.article-body h2{font-size:24px;font-weight:700;color:var(--deep);margin:40px 0 16px;letter-spacing:-.01em}
.article-body h3{font-size:19px;font-weight:600;color:var(--deep);margin:32px 0 12px}
.article-body img{border-radius:12px;margin:24px 0}
.article-body blockquote{border-left:4px solid var(--accent);background:rgba(0,232,143,.06);border-radius:0 12px 12px 0;padding:18px 24px;margin:24px 0;color:#44525E;line-height:1.8}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;background:#fff;overflow-x:auto;display:block}
@media(min-width:768px){.article-body table{display:table}}
.article-body th{background:var(--deep);color:#fff;font-weight:600;text-align:left;padding:12px 16px}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tr:nth-child(even){background:#FAFAF8}
.article-body ul{list-style:disc;padding-left:22px;margin:18px 0}
.article-body ol{list-style:decimal;padding-left:22px;margin:18px 0}
.article-body li{margin:8px 0;line-height:1.8}
.article-body a{color:#0FB573;font-weight:500}
.article-body a:hover{text-decoration:underline}
.article-body code{background:#F1F2F4;border-radius:6px;padding:2px 8px;font-family:"SFMono-Regular",Consolas,monospace;font-size:14px}
@media(max-width:640px){.article-card{padding:28px 20px}.article-body p{font-size:15px;line-height:1.85}}

/* 标签区 */
.tag-section{max-width:820px;margin:0 auto;padding:32px 24px 0}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:#EEF0EE;color:var(--muted);font-size:13px;font-weight:600;border:1px solid transparent;transition:all .2s}
.tag:hover{border-color:var(--accent);color:var(--deep);background:#fff}

/* 上下篇 */
.prev-next{max-width:820px;margin:0 auto;padding:32px 24px 0;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pn-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 24px;display:flex;flex-direction:column;gap:4px;transition:all .2s;box-shadow:var(--shadow)}
.pn-item:hover{border-color:var(--accent);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.pn-label{font-size:12px;color:var(--muted)}
.pn-title{font-size:15px;font-weight:700;color:var(--deep)}
.pn-next{text-align:right}
@media(max-width:640px){.prev-next{grid-template-columns:1fr}}

/* 相关推荐 */
.related-section{padding:64px 0 16px}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;gap:16px;flex-wrap:wrap}
.section-head h2{font-size:28px;font-weight:800;color:var(--deep);letter-spacing:-.02em}
.section-head span{font-size:14px;color:var(--muted)}
.empty-state{background:#fff;border:1px dashed #D6DBD8;border-radius:16px;padding:60px 24px;text-align:center}
.empty-state .empty-icon{width:44px;height:44px;border-radius:50%;background:#EEF0EE;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:14px}
.empty-state p{font-size:16px;font-weight:600;color:var(--ink)}
.empty-state small{display:block;margin-top:8px;font-size:13px;color:var(--muted)}
.empty-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:20px}
.empty-actions a{display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;background:#F1F2F4;color:var(--ink);font-size:13px;font-weight:600;transition:all .2s}
.empty-actions a:hover{background:var(--accent);color:var(--deep)}

/* 未找到 */
.notfound-section{padding:80px 0}
.notfound-card{max-width:680px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:64px 24px;box-shadow:var(--shadow)}
.notfound-card .emp-icon{width:56px;height:56px;border-radius:50%;background:#EEF0EE;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;font-size:26px;font-weight:700}
.notfound-card h1{font-size:28px;font-weight:800;color:var(--deep);margin:20px 0 8px}
.notfound-card p{color:var(--muted);font-size:14px}
.notfound-card .btn-primary{margin-top:24px}

/* CTA */
.cta-band{padding:64px 0 80px}
.cta-card{background:var(--deep);border-radius:20px;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:48px;position:relative}
.cta-card::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:32px 32px}
.cta-content{position:relative;z-index:1}
.cta-content h2{color:#fff;font-size:28px;font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.cta-content p{color:#9AA7B1;font-size:15px;max-width:480px}
.cta-image{position:relative;z-index:1;width:240px;height:160px;object-fit:cover;border-radius:12px;flex-shrink:0;border:1px solid rgba(255,255,255,.12)}
@media(max-width:768px){.cta-card{flex-direction:column;padding:32px 24px;text-align:center}.cta-content p{margin:0 auto}.cta-image{width:100%;height:120px}}

/* 页脚 */
.site-footer{background:var(--deep);color:#9AA7B1;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:#8A98A3}
.footer-brand p.footer-desc{margin:16px 0;font-size:14px;line-height:1.8;max-width:320px}
.footer-domain{font-family:"DIN Alternate","Barlow Condensed",monospace;font-size:14px;color:var(--accent);letter-spacing:.03em}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px}
.footer-col ul li{margin-bottom:6px}
.footer-col ul a{font-size:14px;transition:all .2s;display:inline-block}
.footer-col ul a:hover{color:var(--accent);padding-left:4px}
.contact-line{display:block;font-size:14px;line-height:32px}
.footer-copyright{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:12px;color:#6B7A89}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;gap:24px}}

/* 响应式导航 */
@media(max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
}
.nav-links a:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px}

/* roulang page: category2 */
:root {
            --navy: #0B1D2E;
            --night: #101F2C;
            --mint: #00E88F;
            --ember: #FF7A45;
            --paper: #F7F6F2;
            --white: #FFFFFF;
            --ink: #16202A;
            --mute: #5D6B76;
            --line: #E4E7E4;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-full: 999px;
            --shadow-card: 0 1px 3px rgba(11, 29, 46, .06);
            --shadow-lift: 0 8px 24px rgba(11, 29, 46, .10);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", "Barlow Condensed", monospace;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media(max-width:520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 顶部信息条 */
        .topbar {
            background: var(--night);
            height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 50;
        }
        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .topbar-domain {
            font-family: var(--font-num);
            font-size: 13px;
            color: #9AA7B1;
            letter-spacing: .02em;
        }
        .topbar-tip {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #9AA7B1;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--mint);
            animation: pulse 1.6s ease-in-out infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 232, 143, .5);
            }
            50% {
                box-shadow: 0 0 0 5px rgba(0, 232, 143, 0);
            }
        }
        @media(max-width:640px) {
            .topbar-tip {
                display: none;
            }
        }

        /* 主导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--mint);
            color: var(--navy);
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text strong {
            font-size: 18px;
            font-weight: 800;
            color: var(--navy);
            letter-spacing: .01em;
        }
        .logo-text small {
            font-size: 11px;
            color: var(--mute);
            letter-spacing: .04em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links a {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            position: relative;
            padding: 6px 0;
            transition: color .2s;
        }
        .nav-links a:hover {
            color: var(--mint);
        }
        .nav-links a.active {
            color: var(--navy);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--mint);
            border-radius: 2px;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-cta-mobile {
            display: none;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            padding: 8px;
            z-index: 120;
        }
        .menu-toggle span {
            display: block;
            height: 2px;
            background: var(--navy);
            border-radius: 2px;
            transition: all .3s;
        }
        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        @media(max-width:768px) {
            .nav-links {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--navy);
                z-index: 110;
                display: flex;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 32px;
                opacity: 0;
                visibility: hidden;
                transition: opacity .3s, visibility .3s;
            }
            .nav-links.open {
                opacity: 1;
                visibility: visible;
            }
            .nav-links a {
                color: #fff;
                font-size: 20px;
                line-height: 56px;
            }
            .nav-links a.active {
                color: var(--mint);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.nav-cta-mobile {
                display: inline-block;
                margin-top: 12px;
                background: var(--mint);
                color: var(--navy);
                padding: 12px 32px;
                border-radius: 999px;
                font-size: 16px;
                font-weight: 700;
                line-height: 1;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            padding: 14px 28px;
            transition: all .2s;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--mint);
            color: var(--navy);
            border-color: var(--mint);
        }
        .btn-primary:hover {
            background: #2af0a3;
            border-color: #2af0a3;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 232, 143, .25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            background: #fff;
            color: var(--navy);
            border-color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, .15);
        }
        .btn-ghost {
            background: transparent;
            color: var(--navy);
            border-color: var(--navy);
        }
        .btn-ghost:hover {
            background: var(--navy);
            color: #fff;
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
            height: 40px;
        }
        .btn-lg {
            padding: 18px 40px;
            font-size: 16px;
            height: 56px;
        }

        /* 徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid rgba(0, 232, 143, .5);
            color: var(--mint);
            background: rgba(0, 232, 143, .08);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .02em;
        }
        .badge-light {
            border-color: rgba(255, 255, 255, .3);
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        /* 区块 */
        .section {
            padding: 96px 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -.02em;
            margin: 16px 0 12px;
            line-height: 1.3;
        }
        .section-head p {
            font-size: 16px;
            color: var(--mute);
            line-height: 1.8;
        }
        .section-tag {
            font-size: 13px;
            font-weight: 700;
            color: var(--mint);
            letter-spacing: .06em;
            text-transform: uppercase;
        }
        .section-head.light h2 {
            color: #fff;
        }
        .section-head.light p {
            color: #9AA7B1;
        }
        @media(max-width:768px) {
            .section {
                padding: 64px 0;
            }
            .section-head h2 {
                font-size: 26px;
            }
        }

        /* Hero */
        .page-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            padding: 72px 0;
            overflow: hidden;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(11, 29, 46, .78);
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            width: 100%;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        .page-hero-content h1 {
            font-size: 44px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -.02em;
            line-height: 1.3;
            margin: 20px 0 16px;
        }
        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 32px;
            letter-spacing: .01em;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        @media(max-width:768px) {
            .page-hero {
                padding: 56px 0;
                min-height: 380px;
            }
            .page-hero-content h1 {
                font-size: 32px;
                line-height: 1.35;
            }
            .hero-sub {
                font-size: 15px;
            }
        }

        /* 核心能力卡片 */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: #fff;
            border: 1px solid #E2E4E6;
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            transition: all .2s;
            position: relative;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lift);
            border-color: var(--mint);
            transform: translateY(-4px);
        }
        .feature-num {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--mint);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0, 232, 143, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .feature-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--navy);
            stroke-width: 1.5;
            fill: none;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--mute);
            line-height: 1.7;
            margin: 0;
        }
        @media(max-width:1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media(max-width:560px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 指标列表 */
        .metrics-band {
            background: var(--navy);
            padding: 80px 0;
        }
        .metrics-list {
            max-width: 900px;
            margin: 0 auto;
        }
        .metric-row {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            padding: 28px 8px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
            gap: 24px;
        }
        .metric-row:first-child {
            padding-top: 0;
        }
        .metric-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .metric-label {
            font-size: 18px;
            font-weight: 500;
            color: rgba(255, 255, 255, .8);
        }
        .metric-value {
            font-family: var(--font-num);
            font-size: 56px;
            font-weight: 700;
            color: var(--mint);
            line-height: 1;
            white-space: nowrap;
        }
        .metric-value .unit {
            font-size: 28px;
            font-weight: 700;
            margin-left: 2px;
        }
        @media(max-width:768px) {
            .metrics-band {
                padding: 56px 0;
            }
            .metric-row {
                flex-direction: column;
                gap: 8px;
                padding: 20px 4px;
            }
            .metric-label {
                font-size: 15px;
            }
            .metric-value {
                font-size: 40px;
            }
            .metric-value .unit {
                font-size: 22px;
            }
        }

        /* 图文交替 */
        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 72px;
        }
        .scene-block:last-child {
            margin-bottom: 0;
        }
        .scene-media {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
            background: #E9EBE6;
        }
        .scene-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }
        .scene-media:hover img {
            transform: scale(1.03);
        }
        .scene-content {
            padding: 16px 0;
        }
        .scene-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--ember);
            background: rgba(255, 122, 69, .09);
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .scene-content h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .scene-content>p {
            font-size: 15px;
            color: var(--mute);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .scene-points {
            display: grid;
            gap: 10px;
        }
        .scene-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--ink);
        }
        .scene-points li::before {
            content: '✓';
            display: flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--mint);
            color: var(--navy);
            font-size: 11px;
            font-weight: 800;
            flex-shrink: 0;
            margin-top: 2px;
        }
        @media(max-width:768px) {
            .scene-block {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 56px;
            }
            .scene-content h3 {
                font-size: 22px;
            }
        }

        /* 流程 */
        .process-section {
            background: #EFEDE8;
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: all .2s;
        }
        .process-step:hover {
            box-shadow: var(--shadow-lift);
            transform: translateY(-4px);
        }
        .step-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--mint);
            line-height: 1;
            display: block;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--mute);
            line-height: 1.7;
            margin: 0;
        }
        @media(max-width:1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media(max-width:560px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-section {
            background: var(--navy);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: grid;
            gap: 12px;
        }
        .faq-item {
            background: rgba(255, 255, 255, .05);
            border: 1px solid transparent;
            border-radius: var(--radius);
            transition: background .2s, border-color .2s;
        }
        .faq-item:hover {
            background: rgba(255, 255, 255, .08);
        }
        .faq-item.open {
            border-color: rgba(0, 232, 143, .4);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            line-height: 1.5;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border: 2px solid rgba(0, 232, 143, .6);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
            transition: transform .3s;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--mint);
            border-radius: 2px;
        }
        .faq-icon::before {
            width: 10px;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 10px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer-wrap {
            display: grid;
            grid-template-rows: 0fr;
            transition: grid-template-rows .35s ease;
        }
        .faq-item.open .faq-answer-wrap {
            grid-template-rows: 1fr;
        }
        .faq-answer {
            overflow: hidden;
        }
        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 14px;
            color: #9AA7B1;
            line-height: 1.8;
        }

        /* CTA */
        .cta-band {
            background: linear-gradient(135deg, #0B1D2E 0%, #132A3A 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -.02em;
            margin: 20px 0 16px;
            line-height: 1.3;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, .75);
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        @media(max-width:768px) {
            .cta-band {
                padding: 56px 0;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--navy);
            padding: 72px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 56px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand .logo-text strong {
            color: #fff;
        }
        .footer-brand .logo-text small {
            color: rgba(255, 255, 255, .5);
        }
        .footer-desc {
            font-size: 14px;
            color: #9AA7B1;
            line-height: 1.8;
            margin: 0 0 16px;
            max-width: 320px;
        }
        .footer-domain {
            font-family: var(--font-num);
            font-size: 14px;
            color: rgba(255, 255, 255, .4);
            letter-spacing: .02em;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: .02em;
        }
        .footer-col ul {
            display: grid;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: #9AA7B1;
            line-height: 1.6;
            transition: all .2s;
        }
        .footer-col ul a:hover {
            color: var(--mint);
            padding-left: 2px;
        }
        .contact-line {
            display: block;
            font-size: 14px;
            color: #9AA7B1;
            line-height: 1.8;
        }
        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0;
            text-align: center;
            font-size: 12px;
            color: #6B7A89;
        }
        @media(max-width:1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }
        @media(max-width:640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .site-footer {
                padding-top: 56px;
            }
        }

/* roulang page: category3 */
:root {
  --color-navy: #0B1D2E;
  --color-navy-2: #101F2C;
  --color-accent: #00E88F;
  --color-accent-hover: #2BF0A5;
  --color-orange: #FF7A45;
  --color-bg: #F7F6F2;
  --color-card: #FFFFFF;
  --color-text: #16202A;
  --color-text-sec: #5D6B76;
  --color-border: #E4E7E4;
  --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num: "DIN Alternate","Barlow Condensed",monospace;
  --radius-card: 12px;
  --radius-btn: 999px;
  --radius-input: 8px;
  --shadow-card: 0 1px 3px rgba(11,29,46,.06);
  --shadow-hover: 0 8px 24px rgba(11,29,46,.10);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);background:var(--color-bg);color:var(--color-text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit;transition:all .2s ease}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea{font-family:inherit}
.container{max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px}
@media(max-width:768px){.container{padding-left:16px;padding-right:16px}}
.font-num{font-family:var(--font-num)}

/* ========== 顶部信息条 ========== */
.top-bar{background:#101F2C;height:36px;display:flex;align-items:center;font-size:13px;color:#9AA7B1;position:relative;z-index:60}
.top-bar .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.top-bar .domain{font-family:var(--font-num);letter-spacing:.02em}
.top-bar .action{display:flex;align-items:center;gap:8px}
.pulse-dot{width:6px;height:6px;background:var(--color-accent);border-radius:50%;animation:pulse 2s infinite;flex-shrink:0}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.75)}}
@media(max-width:640px){
  .top-bar .action .hide-mobile{display:none}
  .top-bar{font-size:12px}
  .top-bar .action{gap:6px}
}

/* ========== 主导航 ========== */
.site-header{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:sticky;top:0;z-index:50;border-bottom:1px solid var(--color-border)}
.site-header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:36px;height:36px;background:var(--color-accent);border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;color:var(--color-navy);letter-spacing:-.02em}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text strong{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--color-navy)}
.logo-text small{font-size:11px;color:var(--color-text-sec);letter-spacing:.04em;margin-top:2px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14px;font-weight:600;color:var(--color-text);position:relative;padding:8px 0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--color-accent);transition:width .25s ease}
.nav-links a:hover{color:var(--color-navy)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--color-navy)}
.nav-links a.active::after{width:100%}
.nav-cta{margin-left:8px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:var(--radius-btn);transition:all .2s ease;line-height:1;border:2px solid transparent}
.btn-primary{background:var(--color-accent);color:var(--color-navy);height:44px;padding:0 24px;font-size:14px}
.btn-primary:hover{background:var(--color-accent-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,232,143,.25)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{border-color:rgba(255,255,255,.9);color:#fff;height:44px;padding:0 24px;font-size:14px;background:transparent}
.btn-outline:hover{background:#fff;color:var(--color-navy)}
.btn-dark{background:var(--color-navy);color:#fff;height:48px;padding:0 28px;font-size:15px}
.btn-dark:hover{background:#11293e;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-dark:active{transform:translateY(0)}
.mobile-toggle{display:none;width:40px;height:40px;border-radius:8px;align-items:center;justify-content:center;font-size:22px;color:var(--color-navy);background:transparent;border:1px solid var(--color-border)}
.mobile-toggle:hover{background:var(--color-bg)}
.mobile-toggle .close-icon{display:none}
.mobile-toggle.open .menu-icon{display:none}
.mobile-toggle.open .close-icon{display:inline}
@media(max-width:1023px){
  .nav-links{display:none}
  .mobile-toggle{display:flex}
  .nav-cta{display:none}
}
/* 移动端抽屉 */
.mobile-drawer{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--color-navy);z-index:45;padding:100px 32px 40px;display:flex;flex-direction:column;justify-content:space-between;opacity:0;visibility:hidden;transition:all .3s ease;overflow-y:auto}
.mobile-drawer.open{opacity:1;visibility:visible}
.mobile-drawer a{color:#fff;font-size:20px;font-weight:700;line-height:56px;border-bottom:1px solid rgba(255,255,255,.08);display:block}
.mobile-drawer a:hover{color:var(--color-accent)}
.mobile-drawer a.active{color:var(--color-accent)}
.mobile-drawer .drawer-cta{color:var(--color-navy);background:var(--color-accent);text-align:center;border-radius:var(--radius-btn);height:48px;line-height:48px;border:none;font-size:16px;font-weight:700;margin-top:32px}
.mobile-drawer .drawer-contact{margin-top:24px;color:#9AA7B1;font-size:14px;line-height:2}
.mobile-drawer .drawer-contact strong{color:#fff;font-weight:600}

/* ========== Hero ========== */
.hero{background:var(--color-navy);position:relative;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,29,46,.92) 0%,rgba(11,29,46,.75) 50%,rgba(11,29,46,.6) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-main{padding:80px 0 72px;max-width:880px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;border:1px solid var(--color-accent);border-radius:var(--radius-btn);font-size:13px;font-weight:600;color:var(--color-accent);letter-spacing:.05em;margin-bottom:28px;background:rgba(0,232,143,.06)}
.hero h1{font-size:46px;line-height:1.2;font-weight:800;letter-spacing:-.02em;margin:0 0 20px;color:#fff}
.hero-sub{font-size:17px;line-height:1.8;color:#B8C4CE;max-width:620px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:28px 0 56px;border-top:1px solid rgba(255,255,255,.08)}
.hero-metric{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-card);padding:20px 24px;backdrop-filter:blur(6px)}
.hero-metric .num{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--color-accent);line-height:1.2}
.hero-metric .label{font-size:13px;color:#9AA7B1;margin-top:6px}
@media(max-width:768px){
  .hero h1{font-size:32px;line-height:1.25}
  .hero-main{padding:56px 0 40px}
  .hero-sub{font-size:15px}
  .hero-metrics{grid-template-columns:repeat(2,1fr);gap:12px;padding-bottom:40px}
  .hero-metric{padding:16px}
  .hero-metric .num{font-size:26px}
}

/* ========== 时间线 ========== */
.timeline-section{padding:96px 0}
.section-head{text-align:center;margin-bottom:56px}
.section-eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--color-accent);letter-spacing:.08em;margin-bottom:12px;text-transform:uppercase}
.section-title{font-size:32px;line-height:1.3;font-weight:800;color:var(--color-navy);letter-spacing:-.02em}
.section-sub{font-size:15px;color:var(--color-text-sec);max-width:560px;margin:12px auto 0}
.timeline{position:relative;max-width:960px;margin:0 auto}
.timeline-item{display:flex;gap:32px;position:relative;padding-bottom:40px}
.timeline-item:last-child{padding-bottom:0}
.timeline-marker{display:flex;flex-direction:column;align-items:center;flex-shrink:0;width:56px}
.timeline-dot{width:48px;height:48px;border-radius:50%;background:var(--color-navy);border:3px solid var(--color-accent);display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-weight:700;font-size:15px;color:var(--color-accent);z-index:1}
.timeline-line{width:2px;flex:1;background:linear-gradient(to bottom,var(--color-accent),rgba(0,232,143,.15));margin-top:8px;min-height:40px}
.timeline-item:last-child .timeline-line{display:none}
.timeline-content{flex:1;padding-top:4px}
.timeline-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-card);padding:28px 32px;box-shadow:var(--shadow-card);transition:box-shadow .2s ease,border-color .2s ease}
.timeline-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(0,232,143,.5)}
.timeline-card h3{font-size:20px;font-weight:700;color:var(--color-navy);margin-bottom:10px}
.timeline-card p{font-size:14px;line-height:1.9;color:var(--color-text-sec)}
.timeline-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--color-orange);background:rgba(255,122,69,.1);padding:2px 12px;border-radius:var(--radius-btn);margin-bottom:14px}
@media(max-width:768px){
  .timeline-section{padding:64px 0}
  .section-title{font-size:26px}
  .section-head{margin-bottom:40px}
  .timeline-item{gap:16px}
  .timeline-marker{width:40px}
  .timeline-dot{width:38px;height:38px;font-size:13px;border-width:2px}
  .timeline-card{padding:20px}
  .timeline-card h3{font-size:18px}
}

/* ========== 功能卡 2+1 ========== */
.cards-section{padding:88px 0;background:#EFEDE8}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-card);transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease}
.feature-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(0,232,143,.45);transform:translateY(-2px)}
.feature-card .icon-box{width:48px;height:48px;border-radius:12px;background:rgba(0,232,143,.1);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.feature-card .icon-box svg{width:24px;height:24px;stroke:var(--color-accent);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:20px;font-weight:700;color:var(--color-navy);margin-bottom:10px}
.feature-card p{font-size:14px;line-height:1.9;color:var(--color-text-sec)}
.feature-card .card-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--color-navy);background:var(--color-accent);border-radius:var(--radius-btn);padding:2px 12px;margin-bottom:14px}
.feature-wide{grid-column:span 2;display:flex;align-items:center;gap:40px;padding:40px;overflow:hidden;position:relative}
.feature-wide .wide-content{flex:1;z-index:1}
.feature-wide h3{font-size:24px;margin-bottom:12px}
.feature-wide p{max-width:520px}
.feature-wide .wide-image{flex:0 0 380px;height:220px;border-radius:12px;overflow:hidden;z-index:1}
.feature-wide .wide-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-card:hover .wide-image img{transform:scale(1.04)}
@media(max-width:1023px){
  .feature-wide{flex-direction:column;gap:24px;padding:28px}
  .feature-wide .wide-image{width:100%;flex:none}
}
@media(max-width:768px){
  .cards-section{padding:64px 0}
  .feature-grid{grid-template-columns:1fr;gap:16px}
  .feature-wide{grid-column:span 1;padding:22px}
  .feature-card{padding:24px}
  .feature-wide h3{font-size:20px}
  .feature-wide .wide-image{height:180px}
}

/* ========== FAQ ========== */
.faq-section{padding:96px 0;background:var(--color-navy);color:#fff}
.faq-section .section-title{color:#fff}
.faq-section .section-sub{color:rgba(255,255,255,.6)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,background .2s ease}
.faq-item:hover{background:rgba(255,255,255,.08)}
.faq-item.open{border-color:var(--color-accent)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;color:#fff;font-size:16px;font-weight:600;text-align:left;width:100%;transition:color .2s ease}
.faq-question:hover{color:var(--color-accent)}
.faq-icon{width:22px;height:22px;border:2px solid var(--color-accent);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--color-accent);flex-shrink:0;margin-left:16px;transition:transform .3s ease}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-answer{grid-template-rows:1fr}
.faq-answer-inner{overflow:hidden;padding:0 24px}
.faq-answer p{color:rgba(255,255,255,.6);font-size:14px;line-height:1.9;padding-bottom:20px}
@media(max-width:768px){
  .faq-section{padding:64px 0}
  .faq-question{padding:16px;font-size:15px}
  .faq-answer-inner{padding:0 16px}
}

/* ========== CTA ========== */
.cta-section{padding:88px 0;background:var(--color-bg)}
.cta-box{background:var(--color-card);border-radius:16px;padding:56px;box-shadow:var(--shadow-card);display:flex;gap:56px;align-items:center;border-top:4px solid var(--color-accent)}
.cta-left{flex:1.2}
.cta-left h2{font-size:30px;line-height:1.35;font-weight:800;color:var(--color-navy);margin-bottom:16px;letter-spacing:-.01em}
.cta-left p{font-size:15px;color:var(--color-text-sec);line-height:1.9;margin-bottom:28px}
.cta-points{margin-bottom:28px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--color-text);margin-bottom:12px}
.cta-points .check{width:20px;height:20px;border-radius:50%;background:rgba(0,232,143,.15);display:flex;align-items:center;justify-content:center;color:var(--color-accent);font-size:11px;flex-shrink:0;font-weight:700}
.cta-contact{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--color-text-sec)}
.cta-contact strong{color:var(--color-navy);font-weight:700;font-family:var(--font-num);font-size:16px}
.cta-right{flex:1;background:var(--color-card);border:1px solid var(--color-border);border-radius:12px;padding:40px;box-shadow:var(--shadow-card)}
.cta-form label{display:block;font-size:12px;font-weight:700;color:var(--color-navy);margin-bottom:6px}
.cta-form input,.cta-form textarea{width:100%;height:44px;background:#F1F2F4;border:1px solid transparent;border-radius:8px;padding:0 16px;font-size:14px;color:var(--color-text);outline:none;transition:all .2s ease;margin-bottom:16px}
.cta-form textarea{height:96px;padding:12px 16px;resize:vertical}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:#9AA7B1}
.cta-form input:focus,.cta-form textarea:focus{border-color:var(--color-accent);background:#fff;box-shadow:0 0 0 4px rgba(0,232,143,.15)}
.cta-form .form-success{display:none;align-items:center;gap:8px;background:rgba(0,232,143,.1);color:#0B8F55;font-size:14px;font-weight:600;border-radius:8px;padding:12px 16px;margin-bottom:16px}
.cta-form .form-success.show{display:flex}
.cta-form .btn-primary{width:100%;height:48px;font-size:15px}
@media(max-width:1023px){
  .cta-box{flex-direction:column;padding:40px 24px}
  .cta-right{width:100%;padding:28px}
}
@media(max-width:768px){
  .cta-section{padding:64px 0}
  .cta-left h2{font-size:24px}
  .cta-box{padding:32px 20px}
}

/* ========== 页脚 ========== */
.site-footer{background:var(--color-navy-2);color:#FFFFFF}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding:64px 0 48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:#9AA7B1}
.footer-desc{font-size:14px;line-height:1.9;color:#9AA7B1;max-width:300px;margin-bottom:16px}
.footer-domain{font-family:var(--font-num);font-size:13px;color:rgba(255,255,255,.4);letter-spacing:.02em}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{font-size:14px;color:#9AA7B1;line-height:24px;transition:color .2s ease,padding-left .2s ease;display:inline-block}
.footer-col ul a:hover{color:var(--color-accent);padding-left:2px}
.contact-line{display:block;font-size:14px;color:#9AA7B1;line-height:28px;margin-bottom:8px}
.footer-copyright{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:12px;color:#6B7A89;text-align:center}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 30px}
  .footer-brand{grid-column:span 1}
  .footer-copyright{font-size:11px;padding:16px 0}
}

/* ========== 通用板块间距 ========== */
.section-pad{padding:96px 0}
@media(max-width:768px){.section-pad{padding:64px 0}}