/* roulang page: index */
:root{
  --brand-900:#0B2E27;
  --brand-700:#10443A;
  --brand-500:#1B6B58;
  --brand-50:#EDF5F1;
  --accent-500:#FF6A2B;
  --accent-300:#FFB27A;
  --accent-600:#E2541A;
  --ink-900:#141B18;
  --ink-600:#4A5754;
  --line:#E3E1DA;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --danger:#C0392B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,27,24,.05);
  --sh-2:0 8px 24px -12px rgba(11,46,39,.20);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:-.01em;}
p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}
::selection{background:var(--accent-300);color:var(--ink-900);}
:focus-visible{outline:2px solid rgba(255,106,43,.45);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ===== 容器 / 区块节奏 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:28px;font-weight:800;}
.section-sub{margin-top:10px;font-size:15px;color:var(--ink-600);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);white-space:nowrap;transition:color .18s ease;}
.link-more span{transition:transform .18s ease;}
.link-more:hover{color:var(--accent-600);}
.link-more:hover span{transform:translateX(4px);}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;}
.btn-primary{background:var(--accent-500);color:#fff;}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(226,84,26,.85);}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
.btn-outline:hover{background:var(--brand-50);}
.btn-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ===== 徽章 ===== */
.badge{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);font-size:13px;font-weight:600;line-height:1.7;border:1px solid rgba(27,107,88,.18);white-space:nowrap;}
.badge-accent{background:rgba(255,178,122,.28);color:#8A3B0E;border-color:rgba(226,84,26,.22);}

/* ===== 顶栏 ===== */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease;}
.site-header.is-stuck .topbar-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:30px;height:30px;flex-shrink:0;color:var(--brand-700);}
.brand-text{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:-.01em;white-space:nowrap;}
.search{position:relative;flex:1 1 320px;max-width:400px;margin-left:auto;}
.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-600);pointer-events:none;}
.search input{width:100%;height:40px;padding:0 14px 0 36px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;}
.search input::placeholder{color:#9AA5A1;}
.search input:focus{outline:none;border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(255,106,43,.18);}
.topbar-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.menu-btn span{display:block;width:16px;height:1.5px;background:var(--brand-700);border-radius:2px;transition:.2s;}

/* ===== 频道 Tabs ===== */
.channel-tabs{background:var(--brand-50);border-bottom:1px solid var(--line);}
.tabs-scroll{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.tabs-scroll::-webkit-scrollbar{display:none;}
.tab{padding:7px 16px;border-radius:999px;font-size:15px;color:var(--ink-600);white-space:nowrap;transition:background .18s ease,color .18s ease;}
.tab:hover{background:#fff;color:var(--brand-700);}
.tab.is-active{background:var(--accent-500);color:#fff;font-weight:600;}

/* ===== 移动端面板 ===== */
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 24px 20px;}
.nav-open .mobile-panel{display:block;}
.mp-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.mp-links a{padding:8px 14px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);font-size:14px;font-weight:600;}
.mp-links a.is-active{background:var(--brand-700);color:#fff;}
.mp-search{position:relative;margin-bottom:14px;}
.mp-search input{width:100%;height:42px;padding:0 14px 0 36px;border:1px solid var(--line);border-radius:10px;font-size:14px;}
.mp-search input:focus{outline:none;border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(255,106,43,.18);}
.mp-search .search-icon{left:12px;}

/* ===== Hero ===== */
.hero{position:relative;display:flex;align-items:flex-end;min-height:580px;background:var(--brand-900);overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(92deg,rgba(11,46,39,.94) 0%,rgba(11,46,39,.78) 46%,rgba(11,46,39,.44) 100%);}
.hero-lines{position:absolute;inset:0;opacity:.07;background-image:repeating-linear-gradient(118deg,#ffffff 0 1px,transparent 1px 52px);}
.hero-lines::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(-118deg,#ffffff 0 1px,transparent 1px 52px);}
.hero-inner{position:relative;z-index:2;width:100%;padding:112px 0 72px;color:#fff;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--accent-300);margin-bottom:18px;}
.hero-eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}
.hero h1{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.28;max-width:820px;letter-spacing:-.015em;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.84);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:18px 48px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);}
.hero-stats li{display:flex;flex-direction:column;gap:4px;}
.hero-stats strong{font-size:16px;font-weight:700;color:#fff;}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.6);}

/* ===== S2 服务说明 ===== */
.intro-grid{display:grid;grid-template-columns:150px 1fr;gap:0 48px;}
.v-title{display:block;font-size:14px;font-weight:700;color:var(--brand-700);letter-spacing:.24em;writing-mode:vertical-rl;padding-top:6px;}
.intro-body h2{font-size:28px;font-weight:800;margin-bottom:22px;}
.intro-cols{column-count:2;column-gap:44px;color:var(--ink-600);font-size:16px;line-height:1.9;}
.intro-cols p{margin-bottom:1.2em;break-inside:avoid;}
.intro-cols p:last-child{margin-bottom:0;}

.timeline{display:grid;grid-template-columns:repeat(4,1fr);margin-top:52px;position:relative;padding-top:0;}
.timeline::before{content:"";position:absolute;top:7px;left:0;right:0;height:1px;background:var(--line);}
.tl-item{position:relative;padding:34px 28px 0 0;}
.tl-dot{position:absolute;top:0;left:0;width:15px;height:15px;border-radius:50%;background:#fff;border:3px solid var(--brand-500);}
.tl-item h3{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--brand-900);}
.tl-item p{font-size:13.5px;line-height:1.75;color:var(--ink-600);}

/* ===== S3 精选内容 ===== */
.feature-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;}
.feature-main{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;}
.feature-main:hover{box-shadow:var(--sh-2);border-color:rgba(27,107,88,.35);transform:translateY(-2px);}
.feature-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-50);}
.feature-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.feature-main:hover .feature-cover img{transform:scale(1.03);}
.feature-body{padding:24px;}
.feature-body h3{font-size:20px;font-weight:700;margin:12px 0 10px;transition:color .18s ease;}
.feature-main:hover .feature-body h3{color:var(--accent-600);}
.feature-body p{font-size:15px;line-height:1.8;color:var(--ink-600);}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.feature-mini{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-1);transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;}
.feature-mini:hover{box-shadow:var(--sh-2);border-color:rgba(27,107,88,.35);transform:translateY(-2px);}
.feature-mini .mini-cover{width:112px;height:88px;flex-shrink:0;border-radius:10px;overflow:hidden;background:var(--brand-50);}
.feature-mini .mini-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.feature-mini:hover .mini-cover img{transform:scale(1.03);}
.feature-mini h3{font-size:16px;font-weight:700;margin:8px 0 6px;line-height:1.5;transition:color .18s ease;}
.feature-mini:hover h3{color:var(--accent-600);}
.feature-mini p{font-size:13.5px;line-height:1.7;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ===== S4 最新信息 ===== */
.s-news{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.news-card{position:relative;display:block;padding:22px 46px 22px 20px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--line);border-radius:12px;transition:border-color .18s ease,background .18s ease,transform .18s ease;}
.news-card:hover{border-color:rgba(27,107,88,.35);border-left-color:var(--accent-500);background:#FAFAF7;}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.news-time{font-size:13px;color:var(--ink-600);}
.news-title{font-size:17px;font-weight:700;line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease;}
.news-card:hover .news-title{color:var(--accent-600);}
.news-desc{font-size:14px;line-height:1.75;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-arrow{position:absolute;right:20px;bottom:22px;font-size:16px;color:var(--ink-600);transition:transform .18s ease,color .18s ease;}
.news-card:hover .news-arrow{color:var(--accent-600);transform:translateX(4px);}

.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;text-align:center;}
.empty-state svg{width:40px;height:40px;color:var(--brand-500);}
.empty-state p{font-size:15px;color:var(--ink-600);}

/* ===== S5 服务要点 ===== */
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.proof-card{border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;background:#fff;transition:border-color .18s ease,transform .18s ease;}
.proof-card:hover{border-color:rgba(27,107,88,.4);transform:translateY(-2px);}
.proof-num{font-size:28px;font-weight:800;color:var(--brand-700);line-height:1;font-variant-numeric:tabular-nums;}
.proof-card h3{font-size:17px;font-weight:700;margin:14px 0 8px;}
.proof-card p{font-size:14px;line-height:1.75;color:var(--ink-600);}

/* ===== S6 CTA 条带 ===== */
.cta-band{background:var(--brand-900);color:#fff;padding:72px 0 34px;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.07;background-image:repeating-linear-gradient(118deg,#ffffff 0 1px,transparent 1px 52px);}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 440px;gap:48px;align-items:center;}
.cta-text h2{font-size:26px;font-weight:800;margin-bottom:12px;}
.cta-text p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.75);max-width:520px;}
.cta-form{display:flex;gap:10px;}
.cta-form input{flex:1;height:44px;padding:0 16px;border-radius:10px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;}
.cta-form input::placeholder{color:rgba(255,255,255,.55);}
.cta-form input:focus{outline:none;border-color:var(--accent-500);background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(255,106,43,.22);}
.cta-note{position:relative;margin-top:20px;font-size:13.5px;color:rgba(255,255,255,.55);line-height:1.7;}
.cta-form-msg{margin-top:10px;font-size:13.5px;color:var(--accent-300);min-height:20px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.85);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{color:var(--accent-300);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:300px;}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.8);transition:color .18s ease,text-decoration-color .18s ease;text-decoration:underline transparent;text-underline-offset:3px;}
.footer-col a:hover{color:var(--accent-300);text-decoration-color:var(--accent-300);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;font-size:13px;color:rgba(255,255,255,.55);}

/* ===== 返回顶部 ===== */
.to-top{position:fixed;right:28px;bottom:28px;width:44px;height:44px;border-radius:50%;background:var(--brand-900);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px -12px rgba(11,46,39,.7);opacity:0;visibility:hidden;transform:translateY(10px);transition:.22s ease;z-index:70;}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-700);}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .cta-inner{grid-template-columns:1fr 380px;gap:32px;}
}
@media (max-width:1023px){
  .section{padding:80px 0;}
  .hero{min-height:460px;}
  .hero-inner{padding:88px 0 56px;}
  .intro-grid{grid-template-columns:1fr;gap:0;}
  .v-title{writing-mode:horizontal-tb;letter-spacing:.18em;margin-bottom:16px;}
  .intro-cols{column-count:1;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-side{grid-template-rows:none;grid-template-columns:1fr 1fr;}
  .proof-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .topbar-inner{height:60px;gap:12px;}
  .site-header.is-stuck .topbar-inner{height:56px;}
  .search{display:none;}
  .topbar-actions{display:none;}
  .menu-btn{display:flex;margin-left:auto;}
  .tabs-scroll{height:46px;}
  .hero{min-height:420px;}
  .hero-inner{padding:72px 0 48px;}
  .hero h1{font-size:27px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{gap:16px 32px;margin-top:32px;padding-top:20px;}
  .hero-stats strong{font-size:14.5px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:23px;}
  .intro-body h2{font-size:23px;}
  .timeline{grid-template-columns:1fr;gap:0;}
  .timeline::before{display:none;}
  .tl-item{padding:0 0 24px 26px;}
  .tl-dot{top:5px;left:0;}
  .tl-item::after{content:"";position:absolute;left:7px;top:22px;bottom:0;width:1px;background:var(--line);}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item:last-child::after{display:none;}
  .feature-side{grid-template-columns:1fr;}
  .feature-mini .mini-cover{width:96px;height:76px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card{padding:18px 42px 18px 16px;}
  .proof-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0 28px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:8px;padding:18px 0;}
  .to-top{right:16px;bottom:16px;width:42px;height:42px;}
}
@media (max-width:520px){
  .feature-mini{flex-direction:column;align-items:flex-start;}
  .feature-mini .mini-cover{width:100%;height:150px;}
}

/* roulang page: category1 */
:root{
    --brand-900:#0B2E27;
    --brand-700:#10443A;
    --brand-500:#1B6B58;
    --brand-50:#EDF5F1;
    --accent-500:#FF6A2B;
    --accent-300:#FFB27A;
    --accent-600:#E2541A;
    --ink-900:#141B18;
    --ink-600:#4A5754;
    --line:#E3E1DA;
    --paper:#F7F6F1;
    --card:#FFFFFF;
    --danger:#C0392B;
    --radius-card:14px;
    --radius-img:12px;
    --radius-btn:10px;
    --shadow-sm:0 1px 2px rgba(20,27,24,.05);
    --shadow-md:0 8px 24px -12px rgba(11,46,39,.20);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    background:var(--paper);
    color:var(--ink-900);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;line-height:1.35;}
  p{margin:0;}
  ::selection{background:var(--accent-300);color:var(--ink-900);}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  /* ---------- 顶栏 ---------- */
  .topbar{
    position:sticky;
    top:0;
    z-index:60;
    background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .topbar.is-stuck{box-shadow:var(--shadow-sm);}
  .topbar-inner{
    display:flex;
    align-items:center;
    gap:20px;
    height:72px;
    transition:height .2s ease;
  }
  .topbar.is-stuck .topbar-inner{height:60px;}

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:var(--brand-700);
    font-weight:800;
    letter-spacing:-0.01em;
    flex-shrink:0;
  }
  .brand-mark{width:28px;height:28px;flex-shrink:0;}
  .brand-text{font-size:18px;white-space:nowrap;}

  .nav-toggle{
    display:none;
    width:40px;height:40px;
    align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    cursor:pointer;
    transition:background .18s ease,border-color .18s ease;
  }
  .nav-toggle:hover{background:var(--brand-50);border-color:rgba(27,107,88,.35);}
  .nav-toggle svg{width:20px;height:20px;color:var(--brand-700);}

  .search{
    position:relative;
    flex:1;
    max-width:380px;
    margin-left:auto;
  }
  .search .search-icon{
    position:absolute;left:12px;top:50%;transform:translateY(-50%);
    width:18px;height:18px;color:var(--ink-600);pointer-events:none;
  }
  .search input{
    width:100%;height:40px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    padding:0 14px 0 38px;
    font-size:14px;
    outline:none;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .search input::placeholder{color:#8C9491;}
  .search input:focus{border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.25);}

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

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 22px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    border:1.5px solid transparent;
    cursor:pointer;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--accent-500);color:#fff;}
  .btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
  .btn-outline:hover{background:var(--brand-50);transform:translateY(-1px);}
  .btn-light{border-color:rgba(255,255,255,.6);color:#fff;background:transparent;}
  .btn-light:hover{background:rgba(255,255,255,.12);}
  .btn-block{width:100%;}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:2px;}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand-700);font-weight:600;font-size:14.5px;
  }
  .btn-text svg{width:16px;height:16px;transition:transform .18s ease;}
  .btn-text:hover{color:var(--accent-600);}
  .btn-text:hover svg{transform:translateX(3px);}

  .icon-btn{
    display:none;
    width:40px;height:40px;
    align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    cursor:pointer;
  }
  .icon-btn svg{width:18px;height:18px;color:var(--brand-700);}

  .mobile-search{display:none;padding:0 0 14px;}
  .mobile-search.is-open{display:block;}
  .mobile-search .search{max-width:none;margin-left:0;}

  .mobile-menu{display:none;background:#fff;border-bottom:1px solid var(--line);}
  .mobile-menu.is-open{display:block;}
  .mobile-menu-list{display:grid;gap:4px;padding:12px 0 20px;}
  .mobile-menu-list a{
    display:block;padding:12px 14px;border-radius:10px;
    font-size:15px;color:var(--ink-600);font-weight:500;
  }
  .mobile-menu-list a:hover{background:var(--brand-50);color:var(--brand-700);}
  .mobile-menu-list a.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:700;}

  /* ---------- 频道 Tabs ---------- */
  .channel-tabs{background:var(--brand-50);border-bottom:1px solid var(--line);}
  .tabs-scroll{
    display:flex;
    align-items:center;
    gap:10px;
    height:52px;
    overflow-x:auto;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .tabs-scroll::-webkit-scrollbar{display:none;}
  .tab{
    display:inline-flex;
    align-items:center;
    height:34px;
    padding:0 16px;
    border-radius:999px;
    font-size:14.5px;
    font-weight:500;
    color:var(--ink-600);
    white-space:nowrap;
    transition:background .18s ease,color .18s ease;
  }
  .tab:hover{background:#fff;color:var(--brand-700);}
  .tab.is-active{background:var(--accent-500);color:#fff;}
  .tab:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:2px;}

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;
    background:var(--brand-900);
    color:#fff;
    min-height:300px;
    display:flex;
    align-items:center;
    padding:56px 0;
    overflow:hidden;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    opacity:.42;
  }
  .page-hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      linear-gradient(180deg,rgba(11,46,39,.88),rgba(11,46,39,.72)),
      repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 26px);
  }
  .page-hero-inner{position:relative;z-index:2;}
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13.5px;
    color:rgba(255,255,255,.72);
    margin-bottom:16px;
    flex-wrap:wrap;
  }
  .breadcrumb a{transition:color .18s ease;}
  .breadcrumb a:hover{color:var(--accent-300);text-decoration:underline;}
  .breadcrumb .sep{color:rgba(255,255,255,.45);}
  .page-hero h1{
    font-size:40px;
    font-weight:800;
    color:#fff;
    letter-spacing:-0.01em;
    margin-bottom:16px;
  }
  .page-hero-desc{
    max-width:780px;
    font-size:15.5px;
    line-height:1.9;
    color:rgba(255,255,255,.86);
  }

  /* ---------- 通用段落 ---------- */
  .section{padding:88px 0;}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:780px;margin-bottom:40px;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:600;
    color:var(--brand-700);
    background:var(--brand-50);
    border:1px solid rgba(27,107,88,.22);
    border-radius:999px;
    padding:4px 12px;
    margin-bottom:14px;
  }
  .section-head h2{font-size:28px;margin-bottom:12px;}
  .section-head p{font-size:15.5px;color:var(--ink-600);line-height:1.9;}

  /* ---------- 步骤区 ---------- */
  .steps-layout{
    display:grid;
    grid-template-columns:5fr 7fr;
    gap:48px;
    align-items:start;
  }
  .steps-aside{display:flex;flex-direction:column;gap:24px;}
  .aside-media{
    border-radius:var(--radius-img);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--brand-50);
    box-shadow:var(--shadow-sm);
  }
  .aside-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:0;}
  .aside-caption{
    font-size:13px;
    color:var(--ink-600);
    margin-top:10px;
    text-align:center;
  }
  .aside-panel{
    position:sticky;
    top:96px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:22px;
    box-shadow:var(--shadow-sm);
  }
  .aside-panel h3{
    font-size:15px;
    font-weight:700;
    color:var(--brand-700);
    margin-bottom:6px;
  }
  .aside-panel .panel-hint{
    font-size:13px;
    color:var(--ink-600);
    line-height:1.8;
    margin-bottom:16px;
  }
  .aside-panel .panel-links{display:grid;gap:10px;}
  .aside-panel .panel-note{
    margin-top:16px;
    padding-top:14px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--ink-600);
    line-height:1.8;
  }

  .step-list{border-top:1px solid var(--line);}
  .step-item{
    display:grid;
    grid-template-columns:64px 1fr;
    gap:22px;
    padding:28px 0;
    border-bottom:1px solid var(--line);
  }
  .step-num{
    font-size:32px;
    font-weight:800;
    line-height:1;
    color:var(--brand-700);
    font-variant-numeric:tabular-nums;
    letter-spacing:-0.02em;
    padding-top:4px;
  }
  .step-body h3{font-size:18px;margin-bottom:10px;}
  .step-body p{font-size:15px;line-height:1.85;color:var(--ink-600);}

  /* ---------- 准备清单 ---------- */
  .prep-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .prep-item{
    display:flex;
    gap:14px;
    align-items:flex-start;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px 22px;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .prep-item:hover{border-color:rgba(27,107,88,.35);box-shadow:var(--shadow-md);}
  .prep-icon{
    width:44px;height:44px;
    flex-shrink:0;
    border-radius:12px;
    background:var(--brand-50);
    display:flex;align-items:center;justify-content:center;
  }
  .prep-icon svg{width:22px;height:22px;color:var(--brand-700);}
  .prep-item h3{font-size:16px;margin-bottom:6px;}
  .prep-item p{font-size:14px;line-height:1.8;color:var(--ink-600);}

  /* ---------- 提示处理 ---------- */
  .tip-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .tip-card{
    background:#fff;
    border:1px solid var(--line);
    border-left:3px solid var(--accent-500);
    border-radius:var(--radius-card);
    padding:20px 22px;
    transition:box-shadow .18s ease,transform .18s ease;
  }
  .tip-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
  .tip-card h3{
    font-size:15.5px;
    color:var(--brand-700);
    margin-bottom:8px;
  }
  .tip-card p{font-size:14px;line-height:1.85;color:var(--ink-600);}

  /* ---------- 频道卡 ---------- */
  .channel-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
  }
  .channel-card{
    display:flex;
    gap:20px;
    align-items:stretch;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:18px;
    box-shadow:var(--shadow-sm);
    transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  }
  .channel-card:hover{border-color:rgba(27,107,88,.35);box-shadow:var(--shadow-md);transform:translateY(-2px);}
  .channel-card figure{
    width:150px;
    flex-shrink:0;
    margin:0;
    border-radius:10px;
    overflow:hidden;
    background:var(--brand-50);
  }
  .channel-card figure img{width:100%;height:100%;object-fit:cover;}
  .channel-card .channel-body{display:flex;flex-direction:column;justify-content:center;}
  .channel-card h3{font-size:17px;margin-bottom:8px;}
  .channel-card:hover h3{color:var(--accent-600);}
  .channel-card p{font-size:14px;line-height:1.8;color:var(--ink-600);margin-bottom:10px;}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:var(--brand-50);
    color:var(--brand-700);
    border-radius:999px;
    padding:4px 10px;
    font-size:13px;
    font-weight:500;
    line-height:1.5;
  }

  /* ---------- CTA 条带 ---------- */
  .cta-band{
    background:var(--brand-900);
    color:#fff;
    padding:56px 0;
    position:relative;
    overflow:hidden;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    inset:0;
    background:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,transparent 2px 28px);
    pointer-events:none;
  }
  .cta-band-inner{
    position:relative;
    z-index:2;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:36px;
  }
  .cta-band h2{font-size:26px;color:#fff;margin-bottom:10px;}
  .cta-band p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.82);max-width:640px;}
  .cta-actions{display:flex;gap:12px;flex-shrink:0;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-900);
    color:#F7F6F1;
    padding-top:56px;
    font-size:14.5px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1fr;
    gap:40px;
    padding-bottom:40px;
  }
  .footer-brand .brand{color:#fff;margin-bottom:4px;}
  .footer-brand p{
    color:rgba(247,246,241,.72);
    line-height:1.85;
    margin-top:14px;
    max-width:340px;
    font-size:14px;
  }
  .footer-col h3{
    font-size:15px;
    font-weight:700;
    color:#fff;
    margin-bottom:14px;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{
    color:rgba(247,246,241,.85);
    transition:color .18s ease;
  }
  .footer-col a:hover{color:var(--accent-300);text-decoration:underline;}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);}
  .footer-bottom-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    flex-wrap:wrap;
    padding:18px 24px;
    font-size:13px;
    color:rgba(247,6,241,.62);
    color:rgba(247,246,241,.62);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .container{padding:0 32px;}
    .footer-bottom-inner{padding:18px 32px;}
  }
  @media (max-width:1023px){
    .search{max-width:280px;}
    .page-hero h1{font-size:34px;}
    .steps-layout{grid-template-columns:1fr;gap:32px;}
    .steps-aside{order:2;}
    .steps-main{order:1;}
    .aside-panel{position:static;top:auto;}
    .section{padding:72px 0;}
    .section-head h2{font-size:25px;}
    .channel-card figure{width:130px;}
  }
  @media (max-width:767px){
    .container{padding:0 20px;}
    .footer-bottom-inner{padding:16px 20px;}
    .topbar-inner{height:60px;gap:12px;}
    .topbar.is-stuck .topbar-inner{height:60px;}
    .nav-toggle{display:inline-flex;}
    .icon-btn{display:inline-flex;}
    .topbar .search{display:none;}
    .topbar-actions .btn-outline{display:none;}
    .brand-text{font-size:16px;}
    .tabs-scroll{height:46px;gap:8px;}
    .tab{height:32px;padding:0 14px;font-size:14px;}
    .page-hero{min-height:260px;padding:44px 0;}
    .page-hero h1{font-size:27px;}
    .page-hero-desc{font-size:15px;}
    .section{padding:56px 0;}
    .section-head{margin-bottom:28px;}
    .section-head h2{font-size:22px;}
    .section-head p{font-size:15px;}
    .step-item{grid-template-columns:48px 1fr;gap:16px;padding:22px 0;}
    .step-num{font-size:26px;}
    .step-body h3{font-size:17px;}
    .prep-grid,.tip-grid,.channel-grid{grid-template-columns:1fr;}
    .channel-card{flex-direction:column;}
    .channel-card figure{width:100%;height:170px;}
    .cta-band{padding:44px 0;}
    .cta-band-inner{flex-direction:column;align-items:flex-start;gap:22px;}
    .cta-band h2{font-size:22px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .footer-brand{grid-column:1 / -1;}
    .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:6px;}
  }
  @media (max-width:520px){
    .brand-text{font-size:15px;}
    .brand-mark{width:24px;height:24px;}
    .page-hero h1{font-size:24px;}
    .prep-item{padding:18px;}
    .tip-card{padding:18px;}
  }

/* roulang page: article */
:root{
  --brand-900:#0B2E27;
  --brand-700:#10443A;
  --brand-500:#1B6B58;
  --brand-50:#EDF5F1;
  --accent-500:#FF6A2B;
  --accent-300:#FFB27A;
  --accent-600:#E2541A;
  --ink-900:#141B18;
  --ink-600:#4A5754;
  --line:#E3E1DA;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --danger:#C0392B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,27,24,.05);
  --shadow-2:0 8px 24px -12px rgba(11,46,39,.20);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0;
  padding:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--accent-300);color:var(--ink-900)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
img{max-width:100%;display:block}

/* ============ 顶栏 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-stuck{box-shadow:0 2px 14px -8px rgba(11,46,39,.35)}
.topbar{display:flex;align-items:center;gap:16px;height:72px;transition:height .22s ease}
.site-header.is-stuck .topbar{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--brand-700);flex:0 0 auto}
.brand-mark{width:30px;height:30px;color:var(--brand-700);flex:0 0 auto}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.search-box{position:relative;flex:1 1 auto;max-width:420px;margin-left:6px}
.search-box input{
  width:100%;height:40px;border:1px solid var(--line);border-radius:10px;
  padding:0 14px 0 40px;font-size:14px;color:var(--ink-900);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;font-family:inherit;
}
.search-box input::placeholder{color:#8A9691}
.search-box input:focus{outline:none;border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.25)}
.search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-600);pointer-events:none}
.topbar-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.menu-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;padding:0;flex:0 0 auto}
.menu-toggle span{display:block;width:16px;height:2px;background:var(--brand-700);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.search-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-600);padding:0;flex:0 0 auto}
.mobile-search{display:none;padding:0 0 14px}
.mobile-search.is-open{display:block}
.mobile-search .search-box{display:block;max-width:none;margin:0}
.mobile-menu{display:none;background:#fff;border-bottom:1px solid var(--line)}
.mobile-menu.is-open{display:block}
.mobile-menu ul{list-style:none;margin:0;padding:8px 0 0;display:grid;gap:0}
.mobile-menu a.menu-link{display:block;padding:12px 4px;font-size:15px;color:var(--ink-900);text-decoration:none;border-bottom:1px solid var(--line)}
.mobile-menu a.menu-link:hover{color:var(--brand-700)}
.mobile-menu .menu-actions{display:grid;gap:10px;padding:16px 0 20px}

/* ============ 频道 Tabs ============ */
.channel-tabs{background:var(--brand-50);border-bottom:1px solid var(--line)}
.tabs-scroll{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.tabs-scroll::-webkit-scrollbar{display:none}
.tab{padding:7px 16px;border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-600);text-decoration:none;white-space:nowrap;transition:background .18s ease,color .18s ease}
.tab:hover{background:#fff;color:var(--brand-700)}
.tab.is-active{background:var(--accent-500);color:#fff}
.tab:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:2px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;border-radius:var(--radius-btn);
  padding:12px 22px;text-decoration:none;cursor:pointer;line-height:1.2;
  border:1.5px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  font-family:inherit;
}
.btn-primary{background:var(--accent-500);color:#fff;border-color:var(--accent-500)}
.btn-primary:hover{background:var(--accent-600);border-color:var(--accent-600);transform:translateY(-1px);box-shadow:0 8px 24px -12px rgba(226,84,26,.6)}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-50)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:2px}

/* ============ 文章头部 ============ */
.article-hero{background:linear-gradient(180deg,#fff 0%,var(--paper) 100%);border-bottom:1px solid var(--line);padding:30px 0 26px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:13.5px;color:var(--ink-600)}
.breadcrumb a{color:var(--ink-600);text-decoration:none}
.breadcrumb a:hover{color:var(--accent-600);text-decoration:underline}
.breadcrumb .sep{color:#B9C2BE}
.breadcrumb .current{max-width:min(560px,58vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-900)}
.badge{display:inline-flex;align-items:center;background:var(--brand-50);color:var(--brand-700);border:1px solid rgba(27,107,88,.22);font-size:14px;font-weight:500;padding:4px 12px;border-radius:999px;line-height:1.5;text-decoration:none}
.badge:hover{border-color:var(--accent-500);color:var(--accent-600)}
.article-title{font-size:36px;line-height:1.35;font-weight:800;letter-spacing:-.01em;margin:16px 0 18px;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:12px 0 0;border-top:1px solid var(--line);font-size:13px;color:var(--ink-600);font-variant-numeric:tabular-nums}
.article-meta .meta-sep{width:1px;height:12px;background:var(--line)}
.article-meta strong{color:var(--ink-900);font-weight:600}

/* ============ 文章主体 ============ */
.article-layout{padding:44px 24px 64px;max-width:var(--container);margin:0 auto}
.article-main{max-width:780px;margin:0 auto}
.article-layout.has-toc{display:grid;grid-template-columns:190px minmax(0,780px);gap:48px;justify-content:center;align-items:start}
.article-layout.has-toc .article-main{margin:0;width:100%}
.article-toc{position:sticky;top:132px;align-self:start;font-size:14px}
.article-toc[hidden]{display:none}
.toc-title{font-size:12.5px;letter-spacing:.08em;color:var(--ink-600);margin:0 0 12px;font-weight:600}
.article-toc ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.article-toc a{display:block;padding:7px 0 7px 14px;color:var(--ink-600);text-decoration:none;border-left:3px solid transparent;margin-left:-2px;line-height:1.5;font-size:13.5px;transition:color .16s ease,border-color .16s ease}
.article-toc a:hover{color:var(--brand-700)}
.article-toc a.is-current{color:var(--brand-700);font-weight:600;border-left-color:var(--accent-500)}
.article-cover{margin:0 0 28px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--brand-50)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--ink-600);text-align:center;padding:10px 14px;background:#fff}

.article-body{font-size:17px;line-height:1.9;color:var(--ink-900)}
.article-body p{margin:0 0 1.2em}
.article-body > p:first-of-type{font-size:18px;color:#1E2724}
.article-body h2{font-size:26px;line-height:1.4;font-weight:800;letter-spacing:-.01em;margin:1.8em 0 .6em;padding-left:12px;border-left:3px solid var(--accent-500)}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;margin:1.6em 0 .5em}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .4em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.5em;line-height:1.8}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:0 0 .5em}
.article-body li::marker{color:var(--brand-500)}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-600)}
.article-body blockquote{margin:1.4em 0;background:var(--brand-50);border-left:3px solid var(--brand-700);border-radius:8px;padding:16px 20px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);width:100%;height:auto;margin:0 0 8px;border:1px solid var(--line)}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--ink-600);text-align:center}
.article-body .table-wrap{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:var(--radius-img);background:#fff}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th{background:var(--brand-50);text-align:left;font-weight:600;padding:11px 14px;border-bottom:1px solid var(--line)}
.article-body td{padding:11px 14px;border-bottom:1px solid var(--line)}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body strong{font-weight:700}
.article-body code{background:var(--brand-50);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:15px}

/* ============ 文章操作区 ============ */
.article-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:40px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.action-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  color:var(--ink-600);font-size:14px;cursor:pointer;font-family:inherit;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.action-btn:hover{border-color:rgba(27,107,88,.35);color:var(--brand-700);background:var(--brand-50)}
.action-btn.is-on{background:var(--brand-50);border-color:rgba(27,107,88,.42);color:var(--brand-700)}
.action-btn:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:2px}
.action-btn svg{width:16px;height:16px}
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px}
.tags-label{font-size:13px;color:var(--ink-600)}
.tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);font-size:13.5px;text-decoration:none;border:1px solid rgba(27,107,88,.2);transition:border-color .18s ease,color .18s ease,background .18s ease}
.tag:hover{background:#fff;border-color:var(--accent-500);color:var(--accent-600)}
.article-back{margin-top:30px}

/* ============ 空态 ============ */
.empty-state{text-align:center;padding:60px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card)}
.empty-state svg{width:40px;height:40px;color:var(--brand-500);margin:0 auto 14px}
.empty-state p{font-size:15px;color:var(--ink-600);margin:0 0 20px}
.empty-state .btn{margin:0 auto}

/* ============ 相关推荐 ============ */
.related{background:#fff;border-top:1px solid var(--line);padding:68px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-title{font-size:26px;font-weight:800;letter-spacing:-.01em;margin:0}
.section-sub{font-size:14.5px;color:var(--ink-600);margin:8px 0 0}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-size:14px;font-weight:600;text-decoration:none}
.text-link:hover{color:var(--accent-600);text-decoration:underline}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;gap:14px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px;text-decoration:none;color:inherit;
  box-shadow:var(--shadow-1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.rel-card:hover{border-color:rgba(27,107,88,.35);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.rel-thumb{width:88px;height:66px;border-radius:10px;object-fit:cover;flex:0 0 auto;background:var(--brand-50)}
.rel-body{min-width:0}
.rel-cat{font-size:12.5px;font-weight:600;color:var(--brand-500)}
.rel-title{font-size:15.5px;font-weight:600;line-height:1.45;margin:4px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover .rel-title{color:var(--accent-600)}
.rel-time{font-size:12.5px;color:var(--ink-600);font-variant-numeric:tabular-nums}

/* ============ CTA 条带 ============ */
.cta-band{background:var(--brand-900);color:#F2F6F4;padding:60px 0}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.cta-title{font-size:26px;font-weight:800;color:#fff;margin:0 0 12px;letter-spacing:-.01em}
.cta-text{font-size:15px;color:rgba(242,246,244,.78);margin:0;max-width:460px}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1;height:46px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:14.5px;font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta-form input::placeholder{color:rgba(242,246,244,.55)}
.cta-form input:focus{outline:none;border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.3)}
.cta-note{font-size:13px;color:rgba(242,246,244,.58);margin:14px 0 0}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(242,246,244,.85);padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-col h3{font-size:15px;color:#fff;margin:0 0 14px;font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-col a{color:rgba(242,246,244,.85);text-decoration:none;font-size:14px;transition:color .16s ease}
.footer-col a:hover{color:var(--accent-300);text-decoration:underline}
.footer-brand .brand{color:#fff}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(242,246,244,.72);margin:14px 0 0;max-width:380px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding:18px 0}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(242,246,244,.6)}

/* ============ 返回顶部 ============ */
#backTop{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--brand-700);color:#fff;border:0;display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);z-index:70;
  box-shadow:0 12px 26px -14px rgba(11,46,39,.75);transition:opacity .22s ease,transform .22s ease,background .18s ease,visibility .22s;
}
#backTop:hover{background:var(--brand-500)}
#backTop.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:focus-visible{outline:2px solid rgba(255,106,43,.5);outline-offset:3px}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout.has-toc{grid-template-columns:180px minmax(0,1fr);gap:36px}
}
@media (max-width:1023px){
  .article-layout.has-toc{display:block}
  .article-toc{display:none !important}
  .article-main{max-width:100%}
  .article-title{font-size:30px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .cta-text{max-width:none}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .topbar{height:60px;gap:12px}
  .site-header.is-stuck .topbar{height:56px}
  .menu-toggle{display:inline-flex}
  .search-toggle{display:inline-flex;margin-left:auto}
  .search-box{display:none}
  .topbar-actions{display:none}
  .brand-text{font-size:16px}
  .brand-mark{width:26px;height:26px}
  .tabs-scroll{height:46px;-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%)}
  .article-hero{padding:22px 0 20px}
  .article-title{font-size:26px;line-height:1.38;margin:12px 0 14px}
  .article-meta{gap:10px;font-size:12.5px}
  .article-layout{padding:28px 20px 48px}
  .article-body{font-size:16px;line-height:1.88}
  .article-body > p:first-of-type{font-size:16.5px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:17.5px}
  .related{padding:48px 0}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding:44px 0}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom-inner{flex-direction:column;gap:6px}
  #backTop{right:16px;bottom:16px}
}
@media (max-width:519px){
  .article-title{font-size:23px}
  .rel-thumb{width:72px;height:58px}
}

/* roulang page: category2 */
:root{
    --brand-900:#0B2E27;
    --brand-700:#10443A;
    --brand-500:#1B6B58;
    --brand-50:#EDF5F1;
    --accent-500:#FF6A2B;
    --accent-300:#FFB27A;
    --accent-600:#E2541A;
    --ink-900:#141B18;
    --ink-600:#4A5754;
    --line:#E3E1DA;
    --paper:#F7F6F1;
    --card:#FFFFFF;
    --danger:#C0392B;
    --radius-card:14px;
    --radius-img:12px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(20,27,24,.05);
    --shadow-2:0 8px 24px -12px rgba(11,46,39,.20);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16.5px;
    line-height:1.88;
    color:var(--ink-900);
    background:var(--paper);
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  h1,h2,h3{letter-spacing:-.01em;line-height:1.35;}
  ::selection{background:var(--accent-300);color:var(--ink-900);}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  /* ============ 顶栏 ============ */
  .site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
  .site-header.is-stuck{box-shadow:0 6px 20px -16px rgba(11,46,39,.5);}
  .topbar{display:flex;align-items:center;gap:18px;height:72px;transition:height .2s ease;}
  .site-header.is-stuck .topbar{height:60px;}
  .brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:-.01em;}
  .brand-mark{width:30px;height:30px;flex:0 0 auto;color:var(--brand-700);}
  .brand-text{white-space:nowrap;}
  .search{position:relative;flex:1 1 auto;max-width:400px;margin-left:auto;}
  .search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--ink-600);pointer-events:none;}
  .search input{
    width:100%;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;
    padding:0 14px 0 38px;font-size:14.5px;transition:border-color .18s,box-shadow .18s;
  }
  .search input::placeholder{color:#8B948F;}
  .search input:focus{outline:none;border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.25);}
  .topbar-actions{display:flex;align-items:center;gap:10px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--radius-btn);border:1.5px solid transparent;
    font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
    transition:background-color .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;
  }
  .btn:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:2px;}
  .btn-primary{background:var(--accent-500);color:#fff;}
  .btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
  .btn-outline:hover{background:var(--brand-50);}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-block{width:100%;}
  .btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px;}
  .btn-link svg{width:16px;height:16px;transition:transform .18s ease;}
  .btn-link:hover svg{transform:translateX(3px);}
  .btn-link:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:3px;border-radius:6px;}

  .icon-btn{
    display:none;align-items:center;justify-content:center;width:40px;height:40px;
    border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--brand-700);cursor:pointer;
    transition:background-color .18s,border-color .18s;
  }
  .icon-btn:hover{background:var(--brand-50);border-color:rgba(27,107,88,.35);}
  .icon-btn svg{width:19px;height:19px;}

  .channel-tabs{background:var(--brand-50);border-bottom:1px solid var(--line);}
  .tabs-scroll{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
  .tabs-scroll::-webkit-scrollbar{display:none;}
  .tab{
    padding:8px 16px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--ink-600);
    white-space:nowrap;transition:background-color .18s,color .18s;
  }
  .tab:hover{background:#fff;color:var(--brand-700);}
  .tab.is-active{background:var(--accent-500);color:#fff;}
  .tab:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:2px;}

  .mobile-drawer{display:none;background:#fff;border-bottom:1px solid var(--line);padding:16px 0 20px;}
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer .search{display:block;max-width:none;margin:0 0 12px;}
  .drawer-actions{display:grid;gap:10px;}

  /* ============ 分类 Hero ============ */
  .page-hero{
    position:relative;overflow:hidden;color:#fff;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
  }
  .page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,46,39,.74) 0%,rgba(11,46,39,.62) 60%,rgba(11,46,39,.72) 100%);}
  .page-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:repeating-linear-gradient(118deg,rgba(255,255,255,.055) 0 1px,transparent 1px 30px);
  }
  .hero-inner{position:relative;z-index:2;padding-top:64px;padding-bottom:52px;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.78);}
  .breadcrumb a{transition:color .18s;}
  .breadcrumb a:hover{color:var(--accent-300);}
  .breadcrumb .sep{opacity:.6;}
  .page-hero h1{margin:16px 0 14px;font-size:clamp(26px,3.4vw,40px);font-weight:800;letter-spacing:-.01em;color:#fff;}
  .hero-lead{max-width:760px;margin:0;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.86);}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
  .hero-tags span{
    padding:5px 12px;border-radius:999px;font-size:13.5px;font-weight:500;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);color:#fff;
  }

  /* ============ 通用板块 ============ */
  .section{padding:88px 0;}
  .section-head{max-width:780px;margin-bottom:36px;}
  .section-head h2{margin:0 0 10px;font-size:clamp(22px,2.4vw,29px);font-weight:800;}
  .section-head p{margin:0;font-size:15.5px;color:var(--ink-600);}
  .kicker{
    display:inline-block;margin-bottom:12px;padding:4px 12px;border-radius:999px;
    background:var(--brand-50);border:1px solid rgba(27,107,88,.2);
    color:var(--brand-700);font-size:13.5px;font-weight:600;
  }

  /* 横条要点卡 */
  .point-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line);}
  .point-row{
    display:flex;align-items:flex-start;gap:20px;padding:26px 6px;
    border-bottom:1px solid var(--line);transition:background-color .18s;
  }
  .point-row:hover{background:#FAFAF7;}
  .point-icon{
    flex:0 0 auto;width:46px;height:46px;border-radius:12px;
    background:var(--brand-50);border:1px solid rgba(27,107,88,.2);
    display:flex;align-items:center;justify-content:center;color:var(--brand-700);
  }
  .point-icon svg{width:22px;height:22px;}
  .point-row h3{margin:0 0 6px;font-size:18px;font-weight:700;}
  .point-row p{margin:0;font-size:15px;line-height:1.85;color:var(--ink-600);max-width:820px;}

  /* 图文 5:7 */
  .split-5-7{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
  .split-media figure{margin:0;}
  .split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line);}
  .split-media figcaption{margin-top:10px;font-size:13px;color:var(--ink-600);text-align:center;}
  .split-body h2{margin:0 0 14px;font-size:clamp(21px,2.2vw,27px);font-weight:800;}
  .split-body p{margin:0 0 1.2em;font-size:15.5px;line-height:1.88;color:var(--ink-600);}
  .check-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px;}
  .check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;line-height:1.8;color:var(--ink-600);}
  .check-list svg{flex:0 0 auto;width:18px;height:18px;margin-top:5px;color:var(--brand-500);}

  /* 状态面板 */
  .panel{background:var(--brand-50);border:1px solid rgba(27,107,88,.16);border-radius:var(--radius-card);padding:34px;}
  .panel-head h2{margin:0 0 10px;font-size:clamp(21px,2.2vw,26px);font-weight:800;}
  .panel-head p{margin:0;font-size:15px;color:var(--ink-600);max-width:760px;}
  .state-list{list-style:none;margin:26px 0 0;padding:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;}
  .state-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 22px;border-bottom:1px solid var(--line);transition:background-color .18s;}
  .state-row:last-child{border-bottom:0;}
  .state-row:hover{background:#FAFAF7;}
  .state-row h3{margin:0 0 4px;font-size:16.5px;font-weight:700;}
  .state-row p{margin:0;font-size:14px;line-height:1.7;color:var(--ink-600);}
  .chip{
    flex:0 0 auto;padding:5px 12px;border-radius:999px;font-size:13.5px;font-weight:600;
    background:var(--brand-50);border:1px solid rgba(27,107,88,.24);color:var(--brand-700);
  }
  .chip.is-warn{background:#FFF3EA;border-color:rgba(255,106,43,.35);color:var(--accent-600);}

  /* FAQ */
  .faq-layout{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
  .faq-aside h2{margin:0 0 12px;font-size:clamp(21px,2.2vw,27px);font-weight:800;}
  .faq-aside p{margin:0 0 18px;font-size:15px;line-height:1.85;color:var(--ink-600);}
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 10px 18px 14px;background:transparent;border:0;border-left:3px solid transparent;
    text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);cursor:pointer;
    transition:background-color .18s,border-color .18s,color .18s;
  }
  .faq-q:hover{background:#FAFAF7;color:var(--brand-700);}
  .faq-item.is-open .faq-q{border-left-color:var(--accent-500);color:var(--brand-700);}
  .faq-q:focus-visible{outline:2px solid rgba(255,106,43,.35);outline-offset:-2px;}
  .faq-ind{position:relative;flex:0 0 auto;width:20px;height:20px;}
  .faq-ind::before,.faq-ind::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .18s ease,opacity .18s ease;}
  .faq-ind::before{left:0;top:9px;width:20px;height:2px;}
  .faq-ind::after{left:9px;top:0;width:2px;height:20px;}
  .faq-item.is-open .faq-ind::after{transform:rotate(90deg);opacity:0;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .faq-a-inner{padding:0 14px 20px 17px;font-size:15px;line-height:1.85;color:var(--ink-600);max-width:720px;}

  /* CTA 条带 */
  .cta-band{background:var(--brand-900);color:#F2F5F3;padding:68px 0;}
  .cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
  .cta-band h2{margin:0 0 12px;font-size:clamp(21px,2.3vw,27px);font-weight:800;color:#fff;}
  .cta-band p{margin:0;font-size:15px;line-height:1.85;color:rgba(242,245,243,.78);max-width:540px;}
  .cta-form{display:flex;gap:10px;flex-wrap:wrap;}
  .cta-form input{
    flex:1 1 220px;height:44px;border-radius:var(--radius-btn);
    border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);
    color:#fff;padding:0 14px;font-size:15px;transition:border-color .18s,box-shadow .18s;
  }
  .cta-form input::placeholder{color:rgba(242,245,243,.55);}
  .cta-form input:focus{outline:none;border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.35);}
  .cta-note{margin:14px 0 0;font-size:13.5px;color:rgba(242,245,243,.6);}

  /* 页脚 */
  .site-footer{background:var(--brand-900);color:rgba(242,245,243,.85);padding-top:64px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:46px;}
  .footer-col h3{margin:0 0 14px;font-size:15px;font-weight:700;color:#fff;}
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
  .footer-col a{font-size:14.5px;color:rgba(242,245,243,.85);transition:color .18s;}
  .footer-col a:hover{color:var(--accent-300);text-decoration:underline;text-underline-offset:4px;}
  .site-footer .brand{color:#fff;font-size:18px;margin-bottom:14px;}
  .site-footer .brand-mark{color:var(--accent-300);}
  .footer-brand p{margin:0;font-size:14.5px;line-height:1.85;color:rgba(242,245,243,.7);max-width:340px;}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;}
  .footer-bottom-inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;}
  .footer-bottom p{margin:0;font-size:13px;color:rgba(242,245,243,.6);}

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .split-5-7{gap:36px;}
    .faq-layout{gap:36px;}
  }
  @media (max-width:1023px){
    .topbar{height:68px;}
    .search{max-width:300px;}
    .split-5-7{grid-template-columns:1fr;gap:26px;}
    .faq-layout{grid-template-columns:1fr;gap:26px;}
    .cta-inner{grid-template-columns:1fr;gap:26px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .panel{padding:26px;}
  }
  @media (max-width:767px){
    body{font-size:16px;}
    .container{padding:0 20px;}
    .search,.topbar-actions{display:none;}
    .icon-btn{display:inline-flex;}
    .search-toggle{margin-left:auto;}
    .topbar{height:60px;gap:12px;}
    .brand{font-size:16.5px;}
    .brand-mark{width:26px;height:26px;}
    .tabs-scroll{
      height:46px;
      -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
      mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    }
    .hero-inner{padding-top:40px;padding-bottom:34px;}
    .hero-lead{font-size:14.5px;}
    .section{padding:56px 0;}
    .section-head{margin-bottom:24px;}
    .point-row{gap:14px;padding:20px 2px;}
    .point-row h3{font-size:17px;}
    .state-row{flex-direction:column;align-items:flex-start;gap:10px;padding:16px 18px;}
    .faq-q{font-size:16px;padding:16px 8px 16px 12px;}
    .faq-a-inner{padding:0 12px 18px 15px;font-size:14.5px;}
    .cta-band{padding:52px 0;}
    .cta-form{flex-direction:column;}
    .cta-form input{flex:1 1 auto;width:100%;}
    .cta-form .btn{width:100%;}
    .site-footer{padding-top:48px;}
    .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px;}
  }
  @media (max-width:520px){
    .page-hero h1{font-size:26px;}
    .hero-tags span{font-size:13px;}
    .panel{padding:20px;}
    .footnote{font-size:12.5px;}
  }

/* roulang page: category3 */
:root{
  --brand-900:#0B2E27;
  --brand-700:#10443A;
  --brand-500:#1B6B58;
  --brand-50:#EDF5F1;
  --accent-500:#FF6A2B;
  --accent-300:#FFB27A;
  --accent-600:#E2541A;
  --ink-900:#141B18;
  --ink-600:#4A5754;
  --line:#E3E1DA;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --danger:#C0392B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,27,24,.05);
  --sh-2:0 8px 24px -12px rgba(11,46,39,.20);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.88;
  color:var(--ink-900);
  background:var(--paper);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.32}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--accent-300);color:var(--ink-900)}
:focus-visible{outline:2px solid rgba(255,106,43,.45);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.num{font-variant-numeric:tabular-nums}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .topbar-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17.5px;color:var(--brand-700);letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:30px;height:30px;color:var(--brand-700);flex:none}
.search{position:relative;flex:1 1 auto;max-width:420px;min-width:180px}
.search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--ink-600)}
.search input{width:100%;height:40px;padding:0 14px 0 40px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:14px;outline:none;transition:border-color .18s ease,box-shadow .18s ease}
.search input::placeholder{color:#8A9490}
.search input:focus{border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.25)}
.topbar-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;padding:13px 22px;border:1px solid transparent;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;white-space:nowrap}
.btn-primary{background:var(--accent-500);color:#fff}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:0 8px 18px -10px rgba(226,84,26,.7)}
.btn-outline{border:1.5px solid var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:var(--brand-50)}
.btn-ghost{background:transparent;color:var(--brand-700);padding:12px 6px;font-weight:600}
.btn-ghost .arrow{transition:transform .18s ease}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-light{border:1.5px solid rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-light:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:9px 16px;font-size:14px}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center}
.menu-toggle svg{width:20px;height:20px;color:var(--brand-700)}
.search-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center}
.search-toggle svg{width:18px;height:18px;color:var(--brand-700)}

/* ============ channel tabs ============ */
.channel-tabs{background:var(--brand-50);border-bottom:1px solid var(--line);position:relative}
.tabs-scroll{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.tabs-scroll::-webkit-scrollbar{display:none}
.tab{padding:8px 17px;border-radius:999px;font-size:15px;color:var(--ink-600);white-space:nowrap;transition:background-color .18s ease,color .18s ease}
.tab:hover{background:#fff;color:var(--brand-700)}
.tab.is-active{background:var(--accent-500);color:#fff;font-weight:600}
.channel-tabs::before,.channel-tabs::after{content:"";position:absolute;top:0;bottom:0;width:24px;pointer-events:none;opacity:0;transition:opacity .2s}
.channel-tabs::before{left:0;background:linear-gradient(90deg,var(--brand-50),rgba(237,245,241,0))}
.channel-tabs::after{right:0;background:linear-gradient(270deg,var(--brand-50),rgba(237,245,241,0))}

/* ============ mobile drawer ============ */
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-drawer.is-open{display:block}
.mobile-drawer .inner{padding:16px 24px 22px}
.mobile-drawer a{display:block;padding:12px 4px;font-size:15.5px;color:var(--ink-900);border-bottom:1px solid var(--line)}
.mobile-drawer a:last-of-type{border-bottom:0}
.mobile-drawer .drawer-actions{display:flex;gap:10px;margin-top:14px}
.mobile-drawer .drawer-actions .btn{flex:1}
.mobile-search{padding:14px 24px 4px}
.mobile-search input{width:100%;height:42px;border:1px solid var(--line);border-radius:10px;padding:0 14px;font-size:14px;outline:none}
.mobile-search input:focus{border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.25)}

/* ============ category hero ============ */
.cat-hero{position:relative;min-height:300px;display:flex;align-items:center;color:#fff;
  background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center}
.cat-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,46,39,.88) 0%,rgba(11,46,39,.72) 60%,rgba(11,46,39,.82) 100%)}
.cat-hero::after{content:"";position:absolute;inset:0;opacity:.18;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.22) 0 1px,transparent 1px 22px)}
.cat-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(247,246,241,.8);margin-bottom:16px;flex-wrap:wrap}
.breadcrumb a{color:rgba(247,246,241,.85)}
.breadcrumb a:hover{color:var(--accent-300)}
.breadcrumb .sep{color:rgba(247,246,241,.5)}
.cat-hero h1{font-size:40px;font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
.cat-hero .hero-desc{font-size:16px;line-height:1.85;color:rgba(247,246,241,.88);max-width:760px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-tag{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:6px 14px}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-300)}

/* ============ sections ============ */
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:38px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--brand-700);background:var(--brand-50);border:1px solid rgba(27,107,88,.18);border-radius:999px;padding:5px 13px;margin-bottom:14px}
.eyebrow .bar{width:14px;height:3px;border-radius:2px;background:var(--accent-500)}
.section-head h2{font-size:27px;margin-bottom:12px}
.section-head p{color:var(--ink-600);font-size:16px}
.lead-text{font-size:16.5px;color:var(--ink-600);max-width:780px}

/* key list */
.keylist{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.keylist-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease}
.keylist-item:hover{border-color:rgba(27,107,88,.35);box-shadow:var(--sh-2)}
.keylist-item .ico{width:38px;height:38px;border-radius:10px;background:var(--brand-50);color:var(--brand-700);display:grid;place-items:center;flex:none}
.keylist-item .ico svg{width:19px;height:19px}
.keylist-item h3{font-size:17.5px;margin-bottom:6px}
.keylist-item p{font-size:15px;color:var(--ink-600);line-height:1.8}

/* venue list */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.venue-list{margin-top:30px;border-top:1px solid var(--line)}
.venue-item{display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:center;padding:26px 12px;border-bottom:1px solid var(--line);transition:background-color .2s ease}
.venue-item:hover{background:#FAFAF7}
.venue-thumb{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;background:var(--brand-50);
  background-image:repeating-linear-gradient(115deg,rgba(27,107,88,.08) 0 1px,transparent 1px 14px)}
.venue-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.venue-item:hover .venue-thumb img{transform:scale(1.04)}
.venue-body{min-width:0}
.badge{display:inline-flex;align-items:center;background:var(--brand-50);color:var(--brand-700);font-size:14px;font-weight:500;padding:4px 11px;border-radius:999px;border:1px solid rgba(27,107,88,.16)}
.venue-body h3{font-size:18.5px;margin:10px 0 8px;line-height:1.45}
.venue-item:hover .venue-body h3{color:var(--accent-600)}
.venue-body p{font-size:15px;color:var(--ink-600);line-height:1.8}
.venue-meta{display:flex;align-items:center;gap:14px;margin-top:12px;font-size:13.5px;color:var(--ink-600);flex-wrap:wrap}
.venue-meta .num{font-variant-numeric:tabular-nums}
.venue-meta .go{display:inline-flex;align-items:center;gap:5px;color:var(--brand-700);font-weight:600}
.venue-meta .go svg{width:15px;height:15px;transition:transform .18s ease}
.venue-item:hover .venue-meta .go svg{transform:translateX(3px)}
.list-more{margin-top:34px;display:flex;justify-content:center}

/* steps */
.steps-layout{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.steps-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--brand-50)}
.steps-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.steps-media figcaption{font-size:13px;color:var(--ink-600);padding:12px 16px;background:#fff;border-top:1px solid var(--line);text-align:center}
.step{display:grid;grid-template-columns:58px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.step:first-child{padding-top:4px}
.step:last-child{border-bottom:0}
.step-num{font-size:30px;font-weight:800;color:var(--brand-700);line-height:1;font-variant-numeric:tabular-nums}
.step h3{font-size:18px;margin-bottom:7px}
.step p{font-size:15px;color:var(--ink-600);line-height:1.85}

/* aside entries */
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{font-size:17px;margin-bottom:6px}
.side-card p{font-size:14.5px;color:var(--ink-600);margin-bottom:16px}
.side-card .stack{display:flex;flex-direction:column;gap:10px}
.side-card .stack .btn{width:100%}

/* faq */
.faq-wrap{margin-top:30px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(27,107,88,.35)}
.faq-q{position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:17px 20px 17px 22px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;cursor:pointer;line-height:1.6}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 2px 2px 0;background:var(--accent-500)}
.indicator{position:relative;width:18px;height:18px;flex:none}
.indicator::before,.indicator::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);border-radius:2px;transition:transform .18s ease,opacity .18s ease}
.indicator::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.indicator::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.is-open .indicator::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a .inner{padding:0 22px 20px 22px;font-size:15px;color:var(--ink-600);line-height:1.85}

/* cta band */
.cta-band{background:var(--brand-900);color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;opacity:.14;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.25) 0 1px,transparent 1px 26px)}
.cta-band .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px}
.cta-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-band p{color:rgba(247,246,241,.82);font-size:15.5px}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{flex:1 1 220px;height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;padding:0 15px;font-size:15px;outline:none;transition:border-color .18s ease,box-shadow .18s ease}
.cta-form input::placeholder{color:rgba(247,246,241,.6)}
.cta-form input:focus{border-color:var(--accent-500);box-shadow:0 0 0 2px rgba(255,106,43,.3)}
.cta-form .btn{flex:0 0 auto}
.form-note{font-size:14px;color:rgba(247,246,241,.6);margin-top:12px;line-height:1.7}

/* footer */
.site-footer{background:var(--brand-900);color:rgba(247,246,241,.85)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding:60px 0 42px}
.footer-brand .brand{color:#fff}
.footer-brand .brand-mark{color:var(--accent-300)}
.footer-brand p{font-size:14.5px;color:rgba(247,246,241,.75);margin-top:14px;max-width:340px;line-height:1.85}
.footer-col h3{font-size:15.5px;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(247,246,241,.85);transition:color .18s ease}
.footer-col a:hover{color:var(--accent-300);text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14)}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:20px 0;font-size:13px;color:rgba(247,246,241,.7)}

/* back to top */
.to-top{position:fixed;right:24px;bottom:26px;width:44px;height:44px;border-radius:50%;background:var(--brand-700);color:#fff;border:0;display:grid;place-items:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .22s ease,transform .22s ease,visibility .22s;z-index:70;box-shadow:0 10px 22px -12px rgba(11,46,39,.8)}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top svg{width:18px;height:18px}

/* ============ responsive ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  body{font-size:16px}
  .cat-hero h1{font-size:34px}
  .section{padding:72px 0}
  .venue-item{grid-template-columns:240px 1fr;gap:20px}
  .steps-layout{grid-template-columns:1fr;gap:34px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .topbar-inner{height:60px;gap:12px}
  .site-header.is-scrolled .topbar-inner{height:56px}
  .search,.topbar-actions{display:none}
  .menu-toggle,.search-toggle{display:inline-flex}
  .brand{font-size:16px}
  .brand-mark{width:26px;height:26px}
  .tabs-scroll{height:46px;gap:6px}
  .tab{padding:7px 14px;font-size:14.5px}
  .channel-tabs::before,.channel-tabs::after{opacity:1}
  .cat-hero{min-height:0}
  .cat-hero .container{padding-top:34px;padding-bottom:36px}
  .cat-hero h1{font-size:27px;margin-bottom:12px}
  .cat-hero .hero-desc{font-size:15px}
  .hero-actions .btn{flex:1 1 100%}
  .section{padding:56px 0}
  .section-head h2{font-size:23px}
  .venue-item{grid-template-columns:1fr;gap:16px;padding:20px 0}
  .venue-thumb{max-width:100%}
  .venue-body h3{font-size:17.5px}
  .step{grid-template-columns:44px 1fr;gap:14px}
  .step-num{font-size:25px}
  .keylist-item{padding:16px 16px}
  .faq-q{font-size:16px;padding:15px 16px 15px 18px}
  .faq-a .inner{padding:0 18px 18px 18px}
  .cta-band .container{padding-top:48px;padding-bottom:48px}
  .cta-form{flex-direction:column;align-items:stretch}
  .cta-form input,.cta-form .btn{width:100%;flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 0 30px;gap:24px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .cat-hero h1{font-size:25px}
  .footer-grid{grid-template-columns:1fr}
}