/* roulang page: index */
:root{
  --brand-900:#0A3F3A;
  --brand-700:#14625C;
  --brand-600:#1C7A72;
  --brand-100:#E4EFEC;
  --accent-500:#E08A2E;
  --accent-100:#FBEDD8;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#DCE4E1;
  --ink:#16211F;
  --ink-2:#55635F;
  --ink-3:#8A9694;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,33,31,.05);
  --shadow-2:0 8px 24px rgba(16,33,31,.06);
  --shadow-hover:0 14px 32px rgba(16,33,31,.10);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
.font-serif-cn{font-family:"Noto Serif SC","Songti SC",serif;}
.section{padding-top:56px;padding-bottom:56px;}
@media (min-width:768px){.section{padding-top:80px;padding-bottom:80px;}}
@media (min-width:1024px){.section{padding-top:92px;padding-bottom:92px;}}

/* 顶部导航 */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:relative;z-index:50;}
.brand-row{height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--brand-700),var(--brand-600));display:flex;align-items:center;justify-content:center;flex:0 0 auto;box-shadow:var(--shadow-1);}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
.logo-sub{font-size:12px;color:var(--ink-3);letter-spacing:.08em;line-height:1;}
.channel-bar{background:var(--brand-700);}
.channel-scroll{display:flex;align-items:center;gap:8px;height:54px;overflow-x:auto;scrollbar-width:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.chip{display:inline-flex;align-items:center;white-space:nowrap;padding:9px 18px;border-radius:999px;font-size:15px;color:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.18);transition:all .22s ease;}
.chip:hover{background:rgba(255,255,255,.14);color:#fff;}
.chip.active{background:#fff;color:var(--brand-700);font-weight:600;border-color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.12);}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;}
.drawer{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);padding:16px 20px 22px;}
.drawer.open{display:block;}
.drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.drawer-chip{display:flex;align-items:center;justify-content:center;min-height:44px;border-radius:10px;background:var(--brand-100);color:var(--brand-700);font-size:14px;font-weight:600;text-align:center;padding:8px 10px;}
.drawer-chip.active{background:var(--brand-700);color:#fff;}
@media (min-width:1024px){
  .menu-btn{display:none;}
  .channel-scroll{overflow:visible;}
  .site-header{position:sticky;top:0;box-shadow:0 6px 18px rgba(16,33,31,.06);}
}

/* 按钮 */
.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;min-height:44px;border:1px solid transparent;cursor:pointer;transition:all .22s ease;}
@media (min-width:768px){.btn{padding:14px 28px;}}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-secondary{background:#fff;color:var(--brand-700);border-color:var(--brand-700);}
.btn-secondary:hover{background:var(--brand-100);transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(1px);}
.btn-accent{background:var(--accent-500);color:#fff;}
.btn-accent:hover{background:#cf7a20;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost-light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost-light:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}
.btn-block{width:100%;}
.link-arrow{color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:6px;font-size:15px;}
.link-arrow svg{transition:transform .22s ease;}
.link-arrow:hover{color:var(--brand-600);}
.link-arrow:hover svg{transform:translateX(4px);}

/* 卡片与徽章 */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#cfdcd8;}
.card-media{border-radius:12px;overflow:hidden;background:linear-gradient(135deg,#E4EFEC 0%,#FBEDD8 100%);aspect-ratio:16/9;}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-title{font-size:18px;font-weight:700;line-height:1.45;transition:color .22s ease;}
.card:hover .card-title{color:var(--brand-600);}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;background:var(--brand-100);color:var(--brand-700);}
.badge-accent{background:var(--accent-100);color:#B96C13;}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

/* 首屏 */
.hero-mask{background:linear-gradient(102deg,rgba(10,63,58,.94) 0%,rgba(10,63,58,.82) 52%,rgba(10,63,58,.60) 100%);}
.hero-bg{object-fit:cover;width:100%;height:100%;}
.hero-h1{font-size:clamp(30px,4vw,52px);color:#fff;line-height:1.22;}
.hero-point{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.9);font-size:14px;}
.hero-point i{width:22px;height:22px;border-radius:999px;background:var(--accent-500);color:#fff;font-size:12px;display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-weight:700;flex:0 0 auto;}
.glass-card{background:#fff;border-radius:18px;box-shadow:0 18px 44px rgba(6,36,33,.28);border:1px solid rgba(255,255,255,.6);}

/* 分区标题 */
.eyebrow{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--brand-700);letter-spacing:.06em;}
.eyebrow::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--accent-500);}
.section-title{font-size:clamp(24px,3vw,34px);}
.section-desc{color:var(--ink-2);font-size:16px;max-width:660px;}

/* 清单卡 */
.list-card{position:relative;padding:26px 24px 26px 24px;border-radius:var(--radius-card);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:all .25s ease;}
.list-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.list-num{font-family:"Noto Serif SC","Songti SC",serif;font-size:30px;color:var(--accent-500);line-height:1;}

/* 步骤 */
.step{position:relative;padding:28px 24px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);transition:all .25s ease;}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-num{font-family:"Noto Serif SC","Songti SC",serif;font-size:34px;line-height:1;color:var(--accent-500);}
.step-line{position:absolute;top:50%;height:1px;border-top:1px dashed #C9D6D2;width:calc(100% + 28px);left:calc(100% + 4px);display:none;}
@media (min-width:1024px){.step-line{display:block;}.step-col:nth-child(2){transform:translateY(-22px);}.step-col:nth-child(3){transform:translateY(6px);}}

/* 数据条 */
.stat-num{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(32px,4vw,40px);color:var(--accent-500);line-height:1.1;}

/* FAQ */
.faq-item{border-top:1px solid var(--line);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:20px 4px;min-height:48px;font-size:17px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{flex:0 0 auto;width:24px;height:24px;border-radius:999px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:16px;line-height:1;transition:transform .28s ease,background .28s ease;}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand-100);}
.faq-answer{padding:0 4px 22px;color:var(--ink-2);font-size:16px;line-height:1.9;max-width:68ch;}

/* 表单 */
.field-label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:500;}
.field-input{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);padding:12px 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;}
.field-input:focus{outline:none;border-color:var(--brand-700);box-shadow:0 0 0 3px var(--brand-100);}
.field-note{font-size:12px;color:var(--ink-3);margin-top:10px;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-link{display:inline-block;padding:4px 0;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease,box-shadow .2s ease;}
.footer-link:hover{color:#fff;box-shadow:0 2px 0 0 var(--accent-500);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);}
.footer-group summary{list-style:none;cursor:pointer;color:#fff;font-weight:700;font-size:15px;padding:14px 0;min-height:48px;display:flex;align-items:center;justify-content:space-between;}
.footer-group summary::-webkit-details-marker{display:none;}
@media (min-width:768px){.footer-group summary{pointer-events:none;}}
@media (min-width:768px){.footer-group[open] .footer-group-body,.footer-group .footer-group-body{display:block !important;}}

/* 资讯空态 */
.empty-state{border:1px dashed var(--line);border-radius:var(--radius-card);padding:44px 24px;text-align:center;background:rgba(255,255,255,.6);}

/* roulang page: article */
:root{
    --brand-900:#0A3F3A;
    --brand-700:#14625C;
    --brand-600:#1C7A72;
    --brand-100:#E4EFEC;
    --accent-500:#E08A2E;
    --accent-100:#FBEDD8;
    --bg:#F7F5F0;
    --surface:#FFFFFF;
    --line:#DCE4E1;
    --ink:#16211F;
    --ink-2:#55635F;
    --ink-3:#8A9694;
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(16,33,31,.05);
    --shadow-2:0 8px 24px rgba(16,33,31,.06);
    --shadow-3:0 14px 32px rgba(16,33,31,.10);
  }
  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.9;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button,input,textarea,select{ font-family:inherit; font-size:inherit; color:inherit; }
  :focus-visible{ outline:2px solid var(--brand-600); outline-offset:2px; }

  .container{ width:100%; max-width:1200px; margin:0 auto; padding-left:20px; padding-right:20px; }
  @media (min-width:768px){ .container{ padding-left:32px; padding-right:32px; } }

  /* ---------- 顶部品牌行 ---------- */
  .brand-bar{
    background:var(--surface);
    border-bottom:1px solid var(--line);
  }
  .brand-bar-inner{
    display:flex; align-items:center; justify-content:space-between;
    min-height:68px; gap:16px;
  }
  .logo{ display:flex; align-items:center; gap:10px; }
  .logo-mark{
    width:38px; height:38px; border-radius:11px;
    background:linear-gradient(140deg,var(--brand-700),var(--brand-900));
    display:flex; align-items:center; justify-content:center; flex:0 0 auto;
    box-shadow:var(--shadow-1);
  }
  .logo-text{ font-size:18px; font-weight:700; letter-spacing:-.01em; color:var(--brand-900); line-height:1.2; }
  .logo-sub{ display:block; font-size:11.5px; font-weight:400; color:var(--ink-3); letter-spacing:.08em; margin-top:2px; }
  .brand-aside{ display:none; align-items:center; gap:18px; }
  @media (min-width:1024px){ .brand-aside{ display:flex; } }
  .brand-aside .tip{ font-size:13.5px; color:var(--ink-2); }
  .brand-aside .tip strong{ color:var(--brand-700); font-weight:600; }

  .burger{
    width:44px; height:44px; border-radius:10px; border:1px solid var(--line);
    background:var(--surface); display:flex; align-items:center; justify-content:center;
    cursor:pointer; transition:background .18s ease,border-color .18s ease;
  }
  .burger:hover{ background:var(--brand-100); border-color:var(--brand-100); }
  @media (min-width:1024px){ .burger{ display:none; } }

  /* ---------- 频道行 ---------- */
  .channel-bar{ background:var(--brand-700); }
  .channel-scroll{
    display:flex; gap:8px; align-items:center; overflow-x:auto;
    padding:9px 0; scrollbar-width:none;
  }
  .channel-scroll::-webkit-scrollbar{ display:none; }
  .chip{
    flex:0 0 auto; padding:10px 18px; border-radius:999px;
    font-size:15px; line-height:1.2; color:rgba(255,255,255,.86);
    border:1px solid transparent; transition:all .18s ease; white-space:nowrap;
  }
  .chip:hover{ color:#fff; background:rgba(255,255,255,.14); }
  .chip.active{
    background:#fff; color:var(--brand-700); font-weight:600;
    box-shadow:0 1px 2px rgba(16,33,31,.12);
  }

  /* ---------- 移动抽屉 ---------- */
  .drawer{
    display:none; background:var(--surface); border-bottom:1px solid var(--line);
    padding:16px 0 22px;
  }
  .drawer.open{ display:block; }
  .drawer-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; margin-bottom:16px; }
  .drawer-chip{
    display:flex; align-items:center; justify-content:center;
    min-height:46px; padding:10px 12px; border-radius:10px;
    background:var(--brand-100); color:var(--brand-700);
    font-size:14.5px; font-weight:500; text-align:center;
  }
  .drawer-chip.active{ background:var(--brand-700); color:#fff; }
  .drawer-note{ font-size:13px; color:var(--ink-3); margin:0 0 14px; }

  header.site-header{ position:sticky; top:0; z-index:50; }
  header.site-header.scrolled{ box-shadow:0 6px 18px rgba(16,33,31,.06); }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:44px; padding:12px 22px; border-radius:var(--radius-btn);
    font-size:15px; font-weight:600; line-height:1.2; cursor:pointer;
    border:1px solid transparent; transition:transform .16s ease,background .18s ease,box-shadow .18s ease,color .18s ease;
  }
  .btn:active{ transform:translateY(1px); }
  .btn-primary{ background:var(--brand-700); color:#fff; box-shadow:var(--shadow-1); }
  .btn-primary:hover{ background:var(--brand-600); transform:translateY(-1px); box-shadow:var(--shadow-2); }
  .btn-ghost{ background:#fff; color:var(--brand-700); border-color:var(--brand-700); }
  .btn-ghost:hover{ background:var(--brand-100); transform:translateY(-1px); }
  .btn-accent{ background:var(--accent-500); color:#fff; box-shadow:var(--shadow-1); }
  .btn-accent:hover{ background:#c9781f; transform:translateY(-1px); box-shadow:var(--shadow-2); }
  .btn-sm{ min-height:40px; padding:9px 18px; font-size:14px; }
  @media (min-width:768px){ .btn{ padding:14px 28px; } .btn-sm{ padding:9px 18px; } }

  /* ---------- 面包屑 ---------- */
  .crumbs{
    font-size:13.5px; color:var(--ink-3);
    display:flex; flex-wrap:wrap; align-items:center; gap:8px;
    padding:20px 0 0;
  }
  .crumbs a:hover{ color:var(--brand-600); }
  .crumbs .sep{ color:#C6D0CD; }
  .crumbs .cur{ color:var(--ink-2); max-width:min(520px,70vw); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

  /* ---------- 文章头 ---------- */
  .article-head{ padding:24px 0 0; max-width:820px; }
  .article-head h1{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(26px,3.4vw,40px); line-height:1.32; letter-spacing:-.01em;
    margin:0 0 18px; color:var(--ink);
  }
  .meta-row{
    display:flex; flex-wrap:wrap; align-items:center; gap:10px 16px;
    font-size:13.5px; color:var(--ink-3); padding-bottom:22px;
  }
  .badge{
    display:inline-flex; align-items:center; gap:6px;
    padding:5px 12px; border-radius:999px; font-size:13px; font-weight:600;
    background:var(--brand-100); color:var(--brand-700);
  }
  .badge-accent{ background:var(--accent-100); color:#a8600f; }
  .head-rule{ height:1px; background:var(--line); border:0; margin:0; }

  /* ---------- 正文排版 ---------- */
  .article-body{
    font-size:17.5px; line-height:2.0; color:var(--ink);
    padding:28px 0 8px;
  }
  .article-body p{ margin:0 0 1.15em; }
  .article-body h2{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(22px,2.4vw,27px); line-height:1.4; letter-spacing:-.01em;
    margin:1.7em 0 .7em; padding-left:16px; position:relative;
  }
  .article-body h2::before{
    content:""; position:absolute; left:0; top:.42em;
    width:4px; height:18px; border-radius:2px; background:var(--accent-500);
  }
  .article-body h3{
    font-size:20px; font-weight:700; line-height:1.5; margin:1.4em 0 .55em; color:var(--brand-900);
  }
  .article-body h4{ font-size:17.5px; font-weight:700; margin:1.2em 0 .5em; }
  .article-body ul,.article-body ol{ margin:0 0 1.15em; padding-left:1.35em; }
  .article-body li{ margin:.4em 0; line-height:1.95; }
  .article-body ul li::marker{ color:var(--brand-600); }
  .article-body ol li::marker{ color:var(--accent-500); font-weight:600; }
  .article-body a{ color:var(--brand-600); text-decoration:underline; text-underline-offset:3px; }
  .article-body a:hover{ color:var(--brand-700); }
  .article-body strong{ font-weight:700; }
  .article-body blockquote{
    margin:1.3em 0; padding:16px 20px; border-left:3px solid var(--brand-700);
    background:var(--brand-100); border-radius:0 12px 12px 0; color:var(--ink-2);
    font-size:16.5px; line-height:1.9;
  }
  .article-body blockquote p:last-child{ margin-bottom:0; }
  .article-body img{ border-radius:12px; margin:1.4em auto; box-shadow:var(--shadow-1); }
  .article-body figure{ margin:1.4em 0; }
  .article-body figcaption{ font-size:13px; color:var(--ink-3); text-align:center; margin-top:8px; }
  .article-body table{ width:100%; border-collapse:collapse; margin:1.3em 0; font-size:15.5px; }
  .article-body th{ background:var(--brand-100); color:var(--brand-900); text-align:left; font-weight:600; }
  .article-body th,.article-body td{ border:1px solid var(--line); padding:10px 14px; }
  .article-body code{ background:#EEF2F1; padding:2px 6px; border-radius:5px; font-size:.92em; }
  .article-body hr{ border:0; height:1px; background:var(--line); margin:2em 0; }

  .empty-state{
    border:1px dashed var(--line); border-radius:var(--radius-card);
    background:var(--surface); padding:48px 24px; text-align:center;
  }
  .empty-state .icon{
    width:56px; height:56px; margin:0 auto 16px; border-radius:16px;
    background:var(--brand-100); display:flex; align-items:center; justify-content:center;
  }
  .empty-state p{ color:var(--ink-2); margin:0 0 20px; }

  /* ---------- 文末标签 ---------- */
  .tags-row{ display:flex; flex-wrap:wrap; gap:10px; align-items:center; padding:26px 0 0; }
  .tag{
    padding:7px 14px; border-radius:999px; background:var(--surface);
    border:1px solid var(--line); font-size:13.5px; color:var(--ink-2);
    transition:all .18s ease;
  }
  .tag:hover{ border-color:var(--brand-600); color:var(--brand-600); background:var(--brand-100); }
  .back-row{ padding:24px 0 0; }

  /* ---------- 侧栏 ---------- */
  .side-card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-card);
    box-shadow:var(--shadow-1); padding:20px;
  }
  .side-title{
    font-size:15px; font-weight:700; color:var(--brand-900); margin:0 0 14px;
    display:flex; align-items:center; gap:8px;
  }
  .side-title::before{ content:""; width:3px; height:15px; border-radius:2px; background:var(--accent-500); }
  .side-item{ display:flex; gap:12px; padding:12px 0; border-top:1px solid var(--line); }
  .side-item:first-of-type{ border-top:0; padding-top:0; }
  .side-thumb{
    flex:0 0 88px; width:88px; height:60px; border-radius:9px; overflow:hidden;
    background:linear-gradient(135deg,var(--brand-100),var(--accent-100));
  }
  .side-thumb img{ width:100%; height:100%; object-fit:cover; }
  .side-item h4{ font-size:14.5px; font-weight:600; line-height:1.55; margin:0 0 6px; }
  .side-item:hover h4{ color:var(--brand-600); }
  .side-item span{ font-size:12.5px; color:var(--ink-3); }
  .side-sticky{ position:sticky; top:88px; display:flex; flex-direction:column; gap:18px; }

  /* ---------- 相关推荐卡片 ---------- */
  .card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-card);
    box-shadow:var(--shadow-1); padding:12px 12px 18px; height:100%;
    display:flex; flex-direction:column;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-3); border-color:#CFDAD6; }
  .card-cover{
    aspect-ratio:16/9; border-radius:12px; overflow:hidden; background:linear-gradient(135deg,var(--brand-100),var(--accent-100));
  }
  .card-cover img{ width:100%; height:100%; object-fit:cover; }
  .card-body{ padding:16px 6px 0; display:flex; flex-direction:column; flex:1; }
  .card-body h3{ font-size:17.5px; font-weight:700; line-height:1.55; margin:10px 0 8px; }
  .card:hover h3{ color:var(--brand-600); }
  .card-body p{
    font-size:14.5px; color:var(--ink-2); line-height:1.85; margin:0 0 16px;
    display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
  }
  .card-foot{
    margin-top:auto; display:flex; align-items:center; justify-content:space-between;
    font-size:13px; color:var(--ink-3); border-top:1px solid var(--line); padding-top:12px;
  }
  .card-foot .arrow{ transition:transform .2s ease; }
  .card:hover .card-foot .arrow{ transform:translateX(4px); color:var(--brand-600); }

  /* ---------- 分区标题 ---------- */
  .section{ padding:56px 0; }
  @media (min-width:1024px){ .section{ padding:88px 0; } }
  .section-head{ max-width:720px; margin-bottom:32px; }
  .kicker{ display:flex; align-items:center; gap:10px; margin-bottom:12px; }
  .kicker::before{ content:""; width:24px; height:2px; background:var(--accent-500); }
  .kicker span{ font-size:13.5px; letter-spacing:.14em; color:var(--brand-600); font-weight:600; }
  .section-head h2{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(24px,3vw,32px); line-height:1.35; letter-spacing:-.01em; margin:0 0 12px;
  }
  .section-head p{ margin:0; color:var(--ink-2); font-size:15.5px; }

  /* ---------- CTA ---------- */
  .cta-block{
    background:var(--brand-900); border-radius:18px; padding:40px 24px;
    color:#fff; position:relative; overflow:hidden;
  }
  @media (min-width:768px){ .cta-block{ padding:54px 48px; } }
  .cta-block::after{
    content:""; position:absolute; right:-60px; top:-60px; width:260px; height:260px;
    border-radius:50%; background:rgba(224,138,46,.14);
  }
  .cta-block h2{ font-family:"Noto Serif SC","Songti SC",serif; font-size:clamp(22px,2.6vw,30px); margin:0 0 12px; }
  .cta-block p{ color:rgba(255,255,255,.78); font-size:15.5px; margin:0 0 24px; max-width:620px; }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:12px; position:relative; z-index:1; }

  /* ---------- 页脚 ---------- */
  .site-footer{ background:var(--brand-900); color:#fff; margin-top:0; }
  .footer-link{
    color:rgba(255,255,255,.72); font-size:14px; line-height:2;
    display:inline-block; transition:color .18s ease,box-shadow .18s ease;
  }
  .footer-link:hover{ color:#fff; box-shadow:inset 0 -2px 0 var(--accent-500); }
  .site-footer p{ color:rgba(255,255,255,.72); }
  .footer-group summary{
    list-style:none; cursor:pointer; font-size:15px; font-weight:700; color:#fff;
    padding:0 0 12px; outline:none;
  }
  .footer-group summary::-webkit-details-marker{ display:none; }
  .footer-group-body{ font-size:14px; }
  .footer-bottom{ border-top:1px solid rgba(255,255,255,.14); }
  .footer-bottom p{ font-size:13px; color:rgba(255,255,255,.6); margin:0; }

  .logo-mark-sm{
    width:34px; height:34px; border-radius:10px;
    background:linear-gradient(140deg,var(--brand-700),var(--brand-900));
    display:flex; align-items:center; justify-content:center; flex:0 0 auto;
  }

  @media (max-width:640px){
    .article-body{ font-size:16.5px; line-height:1.95; }
    .crumbs .cur{ max-width:60vw; }
    .section{ padding:52px 0; }
  }

/* roulang page: category1 */
:root{
    --brand-900:#0A3F3A;
    --brand-700:#14625C;
    --brand-600:#1C7A72;
    --brand-100:#E4EFEC;
    --accent-500:#E08A2E;
    --accent-100:#FBEDD8;
    --bg:#F7F5F0;
    --surface:#FFFFFF;
    --line:#DCE4E1;
    --ink:#16211F;
    --ink-2:#55635F;
    --ink-3:#8A9694;
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(16,33,31,.05);
    --shadow-2:0 8px 24px rgba(16,33,31,.06);
    --shadow-3:0 14px 32px rgba(16,33,31,.10);
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; }
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    font-size:17px;
    line-height:1.9;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{ margin:0; line-height:1.3; letter-spacing:-0.01em; }
  p{ margin:0; }
  p + p{ margin-top:1.15em; }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  button,input,textarea,select{ font:inherit; color:inherit; }

  a:focus-visible,
  button:focus-visible,
  summary:focus-visible,
  input:focus-visible,
  textarea:focus-visible{
    outline:2px solid var(--brand-600);
    outline-offset:2px;
    border-radius:6px;
  }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){
    .container{ padding-left:32px; padding-right:32px; }
  }

  /* ---------- 顶部品牌行 ---------- */
  .site-header{
    position:relative;
    z-index:60;
    background:var(--surface);
  }
  @media (min-width:1024px){
    .site-header{
      position:sticky;
      top:0;
      box-shadow:0 6px 18px rgba(16,33,31,.06);
    }
  }
  .topbar{
    background:var(--surface);
    border-bottom:1px solid var(--line);
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:68px;
    padding-top:10px;
    padding-bottom:10px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    width:40px;height:40px;
    border-radius:12px;
    background:linear-gradient(140deg,var(--brand-700),var(--brand-600));
    display:inline-flex;
    align-items:center;
    justify-content:center;
    box-shadow:var(--shadow-1);
    flex-shrink:0;
  }
  .brand-text{
    font-weight:700;
    font-size:19px;
    letter-spacing:-0.01em;
    color:var(--ink);
    white-space:nowrap;
  }
  .topbar-right{
    display:flex;
    align-items:center;
    gap:14px;
  }
  .topbar-note{
    font-size:13px;
    color:var(--ink-2);
    display:none;
  }
  @media (min-width:768px){ .topbar-note{ display:inline-block; } }
  .nav-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:44px;height:44px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    cursor:pointer;
    transition:background .2s ease,border-color .2s ease;
  }
  .nav-toggle:hover{ background:var(--brand-100); border-color:var(--brand-100); }
  @media (min-width:1024px){ .nav-toggle{ display:none; } }

  /* ---------- 频道导航 ---------- */
  .channel-bar{
    background:var(--brand-700);
  }
  .channel-scroll{
    display:flex;
    align-items:center;
    gap:8px;
    overflow-x:auto;
    padding:9px 0;
    scrollbar-width:none;
    -ms-overflow-style:none;
  }
  .channel-scroll::-webkit-scrollbar{ display:none; }
  .chip{
    display:inline-flex;
    align-items:center;
    white-space:nowrap;
    padding:10px 18px;
    border-radius:999px;
    font-size:15px;
    line-height:1.2;
    color:rgba(255,255,255,.86);
    transition:background .2s ease,color .2s ease,transform .2s ease;
  }
  .chip:hover{ background:rgba(255,255,255,.15); color:#fff; }
  .chip.active{
    background:#fff;
    color:var(--brand-700);
    font-weight:600;
  }
  .chip.chip-dark{
    background:var(--brand-100);
    color:var(--brand-700);
  }
  .chip.chip-dark:hover{ background:#d5e6e1; }

  /* ---------- 移动端抽屉 ---------- */
  .nav-drawer{
    display:none;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    padding:18px 0 22px;
    box-shadow:var(--shadow-2);
  }
  .nav-drawer.open{ display:block; }
  .drawer-chips{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
    margin-bottom:16px;
  }
  @media (min-width:1024px){ .nav-drawer{ display:none !important; } }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 22px;
    min-height:44px;
    border-radius:var(--radius-btn);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    cursor:pointer;
    transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  @media (min-width:768px){
    .btn{ padding:14px 28px; }
  }
  .btn-primary{ background:var(--brand-700); color:#fff; }
  .btn-primary:hover{ background:var(--brand-600); transform:translateY(-1px); }
  .btn-primary:active{ transform:translateY(1px); }
  .btn-ghost{
    background:#fff;
    color:var(--brand-700);
    border-color:var(--brand-700);
  }
  .btn-ghost:hover{ background:var(--brand-100); transform:translateY(-1px); }
  .btn-ghost:active{ transform:translateY(1px); }
  .btn-ghost-light{
    background:transparent;
    color:#fff;
    border-color:rgba(255,255,255,.7);
  }
  .btn-ghost-light:hover{ background:rgba(255,255,255,.14); color:#fff; transform:translateY(-1px); }
  .btn-accent{ background:var(--accent-500); color:#fff; }
  .btn-accent:hover{ background:#cc7b23; transform:translateY(-1px); }
  .btn-accent:active{ transform:translateY(1px); }
  .btn-sm{ padding:9px 16px; min-height:40px; font-size:14px; }
  .btn-block{ width:100%; }

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 12px;
    border-radius:999px;
    background:var(--brand-100);
    color:var(--brand-700);
    font-size:13px;
    font-weight:600;
    line-height:1.6;
  }
  .badge-accent{
    background:var(--accent-100);
    color:#B36A15;
  }

  /* ---------- 页面头图 ---------- */
  .page-hero{
    position:relative;
    overflow:hidden;
    background-color:var(--brand-900);
  }
  .page-hero-bg{
    position:absolute;
    inset:0;
    background-size:cover;
    background-position:center;
    transform:scale(1.02);
  }
  .page-hero-overlay{
    position:absolute;
    inset:0;
    background:linear-gradient(120deg,rgba(10,63,58,.88),rgba(10,63,58,.72));
  }
  .page-hero-inner{
    position:relative;
    z-index:2;
    display:flex;
    flex-direction:column;
    justify-content:center;
    gap:14px;
    min-height:260px;
    padding-top:44px;
    padding-bottom:44px;
    color:#fff;
  }
  .breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:rgba(255,255,255,.72);
  }
  .breadcrumb a{ color:rgba(255,255,255,.82); }
  .breadcrumb a:hover{ color:#fff; text-decoration:underline; text-underline-offset:3px; }
  .breadcrumb .sep{ color:rgba(255,255,255,.45); }
  .breadcrumb .current{ color:rgba(255,255,255,.95); }
  .page-hero h1{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(28px,4vw,44px);
    font-weight:700;
    color:#fff;
    max-width:18em;
  }
  .page-hero-sub{
    font-size:17px;
    line-height:1.85;
    color:rgba(255,255,255,.86);
    max-width:34em;
  }
  .page-hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:6px;
  }

  /* ---------- 通用区块 ---------- */
  .section{ padding:56px 0; }
  @media (min-width:1024px){ .section{ padding:88px 0; } }
  .section-alt{ background:var(--brand-100); }
  .section-white{ background:var(--surface); }
  .rule-mark{
    display:block;
    width:24px;
    height:3px;
    border-radius:2px;
    background:var(--accent-500);
    margin-bottom:14px;
  }
  .section-head{ margin-bottom:36px; max-width:820px; }
  .section-head h2{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(24px,3vw,32px);
    font-weight:700;
    color:var(--ink);
  }
  .section-head p{
    margin-top:12px;
    font-size:16px;
    color:var(--ink-2);
    line-height:1.9;
  }

  /* ---------- 要点条 ---------- */
  .facts-strip{
    background:var(--surface);
    border-bottom:1px solid var(--line);
  }
  .facts-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:16px;
    padding:26px 0;
  }
  @media (min-width:640px){ .facts-grid{ grid-template-columns:1fr 1fr; } }
  @media (min-width:1024px){ .facts-grid{ grid-template-columns:repeat(4,1fr); gap:24px; } }
  .fact{
    display:flex;
    align-items:flex-start;
    gap:12px;
  }
  .fact-icon{
    flex-shrink:0;
    width:34px;height:34px;
    border-radius:10px;
    background:var(--brand-100);
    color:var(--brand-700);
    display:inline-flex;
    align-items:center;
    justify-content:center;
  }
  .fact-title{
    font-size:15px;
    font-weight:600;
    color:var(--ink);
  }
  .fact-desc{
    font-size:13px;
    color:var(--ink-3);
    line-height:1.8;
    margin-top:2px;
  }

  /* ---------- 图文条 ---------- */
  .zigzag-list{
    display:flex;
    flex-direction:column;
    gap:44px;
  }
  .zigzag-item{
    display:grid;
    grid-template-columns:1fr;
    gap:22px;
    align-items:center;
  }
  @media (min-width:1024px){
    .zigzag-item{ grid-template-columns:1fr 1fr; gap:56px; }
    .zigzag-item.rev .zigzag-media{ order:2; }
  }
  .zigzag-media img{
    width:100%;
    aspect-ratio:16 / 10;
    object-fit:cover;
    border-radius:var(--radius-card);
    border:1px solid var(--line);
    box-shadow:var(--shadow-2);
  }
  .zigzag-media figcaption{
    margin-top:10px;
    font-size:13px;
    color:var(--ink-3);
    text-align:center;
  }
  .step-no{
    display:inline-block;
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:15px;
    font-weight:700;
    letter-spacing:.1em;
    color:var(--accent-500);
    margin-bottom:10px;
  }
  .zigzag-body h3{
    font-size:19px;
    font-weight:700;
    color:var(--ink);
    margin-bottom:12px;
  }
  @media (min-width:1024px){
    .zigzag-body h3{ font-size:21px; }
  }
  .zigzag-body p{
    font-size:16px;
    color:var(--ink-2);
    line-height:1.9;
  }
  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:16px;
    font-size:15px;
    font-weight:600;
    color:var(--brand-700);
    border-bottom:1px solid transparent;
    transition:color .2s ease,border-color .2s ease,gap .2s ease;
  }
  .text-link:hover{ color:var(--brand-600); border-color:var(--brand-600); gap:10px; }
  .arrow{ transition:transform .2s ease; }

  /* ---------- 提示信息列表 ---------- */
  .notice-list{
    display:flex;
    flex-direction:column;
    gap:16px;
  }
  .notice-item{
    display:grid;
    grid-template-columns:1fr;
    gap:14px;
    padding:16px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .notice-item:hover{
    transform:translateY(-2px);
    box-shadow:var(--shadow-3);
  }
  @media (min-width:768px){
    .notice-item{
      grid-template-columns:130px 1fr auto;
      align-items:center;
      gap:22px;
      padding:18px 22px;
    }
  }
  .notice-thumb img{
    width:100%;
    height:90px;
    object-fit:cover;
    border-radius:12px;
    border:1px solid var(--line);
  }
  @media (min-width:768px){
    .notice-thumb img{ width:130px; height:84px; }
  }
  .notice-main h3{
    font-size:17px;
    font-weight:700;
    color:var(--ink);
    margin:8px 0 6px;
  }
  .notice-main p{
    font-size:15px;
    color:var(--ink-2);
    line-height:1.85;
  }
  .notice-action{
    font-size:14px;
    font-weight:600;
    color:var(--brand-700);
    white-space:nowrap;
    align-self:flex-start;
  }
  .notice-action:hover{ color:var(--brand-600); }

  /* ---------- FAQ ---------- */
  .faq-wrap{
    display:grid;
    grid-template-columns:1fr;
    gap:0;
  }
  @media (min-width:1024px){
    .faq-wrap{ grid-template-columns:1fr 1fr; column-gap:56px; }
  }
  .faq-item{ border-top:1px solid var(--line); }
  .faq-item:last-child{ border-bottom:1px solid var(--line); }
  @media (min-width:1024px){
    .faq-item:last-child{ border-bottom:1px solid var(--line); }
  }
  .faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:48px;
    padding:18px 0;
    cursor:pointer;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary:hover{ color:var(--brand-700); }
  .faq-icon{
    flex-shrink:0;
    width:24px;height:24px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    color:var(--brand-700);
    transition:transform .28s ease;
  }
  .faq-item[open] .faq-icon{ transform:rotate(135deg); }
  .faq-answer{
    padding:0 0 20px;
    font-size:16px;
    line-height:1.9;
    color:var(--ink-2);
    max-width:68ch;
  }

  /* ---------- 跨频道跳转 ---------- */
  .cross-card{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
    align-items:center;
    padding:26px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-2);
  }
  @media (min-width:768px){
    .cross-card{ grid-template-columns:1fr auto; padding:32px 36px; }
  }
  .cross-card h3{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:22px;
    font-weight:700;
    margin:10px 0 8px;
  }
  .cross-card p{
    font-size:15px;
    color:var(--ink-2);
    line-height:1.85;
    max-width:52ch;
  }

  /* ---------- CTA 表单区 ---------- */
  .cta-band{
    background:var(--brand-900);
    color:#fff;
  }
  .cta-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    align-items:start;
  }
  @media (min-width:1024px){
    .cta-grid{ grid-template-columns:5fr 7fr; gap:56px; }
  }
  .cta-copy h2{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(24px,3vw,32px);
    font-weight:700;
    color:#fff;
  }
  .cta-copy p{
    margin-top:14px;
    font-size:16px;
    line-height:1.9;
    color:rgba(255,255,255,.8);
  }
  .cta-list{
    margin-top:22px;
    display:flex;
    flex-direction:column;
    gap:12px;
  }
  .cta-list li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:15px;
    color:rgba(255,255,255,.86);
    line-height:1.8;
  }
  .cta-dot{
    flex-shrink:0;
    width:8px;height:8px;
    margin-top:10px;
    border-radius:999px;
    background:var(--accent-500);
  }
  .form-card{
    background:#fff;
    border-radius:16px;
    padding:24px;
    box-shadow:0 18px 40px rgba(0,0,0,.18);
  }
  @media (min-width:768px){ .form-card{ padding:30px; } }
  .form-card h3{
    font-size:18px;
    font-weight:700;
    color:var(--ink);
    margin-bottom:18px;
  }
  .field{ margin-bottom:16px; }
  .field label{
    display:block;
    font-size:14px;
    color:var(--ink-2);
    margin-bottom:6px;
  }
  .field input,
  .field textarea{
    width:100%;
    padding:12px 14px;
    border:1px solid var(--line);
    border-radius:var(--radius-btn);
    background:#fff;
    font-size:15px;
    color:var(--ink);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field input::placeholder,
  .field textarea::placeholder{ color:var(--ink-3); }
  .field input:focus,
  .field textarea:focus{
    outline:none;
    border-color:var(--brand-700);
    box-shadow:0 0 0 3px var(--brand-100);
  }
  .field textarea{ min-height:104px; resize:vertical; }
  .form-note{
    margin-top:12px;
    font-size:12px;
    line-height:1.8;
    color:var(--ink-3);
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-900);
    color:#fff;
  }
  .site-footer p{ font-size:14px; line-height:1.9; color:rgba(255,255,255,.72); }
  .footer-link{
    color:rgba(255,255,255,.72);
    font-size:14px;
    line-height:2;
    display:inline-block;
    box-shadow:0 0 0 0 var(--accent-500);
    transition:color .2s ease,box-shadow .2s ease;
  }
  .footer-link:hover{
    color:#fff;
    box-shadow:0 2px 0 0 var(--accent-500);
  }
  .footer-group summary{
    list-style:none;
    cursor:pointer;
    font-size:15px;
    font-weight:600;
    color:#fff;
    margin-bottom:12px;
  }
  .footer-group summary::-webkit-details-marker{ display:none; }
  .footer-group-body{ padding-bottom:4px; }
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.14);
  }
  .footer-bottom p{
    font-size:13px;
    color:rgba(255,255,255,.6);
  }
  .footer-logo-mark{
    width:38px;height:38px;
    border-radius:12px;
    background:rgba(255,255,255,.12);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex-shrink:0;
  }

  @media (max-width:639px){
    body{ font-size:16px; }
    .page-hero-inner{ min-height:240px; }
  }

/* roulang page: category2 */
:root{
    --brand-900:#0A3F3A;
    --brand-700:#14625C;
    --brand-600:#1C7A72;
    --brand-100:#E4EFEC;
    --accent-500:#E08A2E;
    --accent-100:#FBEDD8;
    --bg:#F7F5F0;
    --surface:#FFFFFF;
    --line:#DCE4E1;
    --ink:#16211F;
    --ink-2:#55635F;
    --ink-3:#8A9694;
    --radius:14px;
    --radius-sm:10px;
    --shadow-1:0 1px 2px rgba(16,33,31,.05);
    --shadow-2:0 8px 24px rgba(16,33,31,.06);
    --shadow-3:0 14px 32px rgba(16,33,31,.10);
    --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    --font-serif:"Noto Serif SC","Songti SC",serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.9;
    letter-spacing:.01em;
  }
  img{max-width:100%;display:block;height:auto}
  a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,border-color .2s ease}
  a:hover{color:var(--brand-600)}
  button,input,textarea,select{font:inherit;color:inherit}
  h1,h2,h3,h4{font-family:var(--font-serif);line-height:1.3;letter-spacing:-.01em;margin:0}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){ .container{padding:0 32px} }
  .skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--brand-700);padding:10px 16px;border-radius:0 0 10px 0;z-index:99}
  .skip-link:focus{left:0}

  /* 顶部品牌行 */
  .site-header{position:sticky;top:0;z-index:60;background:#fff}
  .topbar{background:#fff;border-bottom:1px solid var(--line)}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px;padding-top:10px;padding-bottom:10px}
  .brand{display:flex;align-items:center;gap:12px}
  .logo-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--brand-700),var(--brand-600));display:flex;align-items:center;justify-content:center;flex:0 0 auto}
  .brand-text{font-family:var(--font-serif);font-size:18px;font-weight:700;color:var(--brand-900);letter-spacing:.01em;white-space:nowrap}
  .topbar-right{display:flex;align-items:center;gap:14px}
  .topbar-note{display:none;font-size:13px;color:var(--ink-3)}
  @media (min-width:1024px){ .topbar-note{display:inline} }
  .menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:4px;width:44px;height:44px;padding:10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;cursor:pointer}
  .menu-toggle span{display:block;height:2px;width:100%;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)}
  @media (min-width:1024px){ .menu-toggle{display:none} }

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 22px;border-radius:var(--radius-sm);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;text-align:center;transition:transform .18s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease}
  @media (min-width:768px){ .btn{padding:14px 28px} }
  .btn-sm{min-height:40px;padding:10px 18px;font-size:14px}
  .btn-primary{background:var(--brand-700);color:#fff}
  .btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-outline{background:#fff;color:var(--brand-700);border-color:var(--brand-700)}
  .btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
  .btn-accent{background:var(--accent-500);color:#fff}
  .btn-accent:hover{background:#CE7A1F;color:#fff;transform:translateY(-1px)}
  .btn:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
  .btn-block{width:100%}

  /* 频道行 */
  .channel-bar{background:var(--brand-700)}
  .channel-scroll{display:flex;align-items:center;gap:6px;overflow-x:auto;padding:8px 0;scrollbar-width:none}
  .channel-scroll::-webkit-scrollbar{display:none}
  .chip{display:inline-block;padding:10px 18px;border-radius:999px;font-size:15px;color:rgba(255,255,255,.88);white-space:nowrap;transition:background .2s ease,color .2s ease}
  .chip:hover{background:rgba(255,255,255,.14);color:#fff}
  .chip.active{background:#fff;color:var(--brand-700);font-weight:600}
  .chip.active:hover{background:#fff;color:var(--brand-700)}

  /* 移动端抽屉 */
  .mobile-drawer{background:#fff;border-bottom:1px solid var(--line);padding:18px 0 22px;box-shadow:var(--shadow-2)}
  .mobile-drawer[hidden]{display:none}
  .drawer-chips{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
  .drawer-chips .chip{background:var(--brand-100);color:var(--brand-700);text-align:center;padding:12px 10px;font-size:14px}
  .drawer-chips .chip.active{background:var(--brand-700);color:#fff;font-weight:600}
  .drawer-cta{width:100%}
  @media (min-width:1024px){ .mobile-drawer{display:none !important} }

  /* 分类页头 */
  .cat-head{background:var(--brand-100);border-bottom:1px solid var(--line);padding:34px 0 38px}
  @media (min-width:1024px){ .cat-head{padding:52px 0 58px} }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
  .breadcrumb a{color:var(--ink-3)}
  .breadcrumb a:hover{color:var(--brand-600)}
  .breadcrumb .sep{color:#B8C6C2}
  .cat-head-inner{display:flex;gap:18px;align-items:stretch;margin-top:18px}
  .cat-head-bar{flex:0 0 6px;width:6px;border-radius:999px;background:var(--accent-500)}
  .cat-head h1{font-size:clamp(28px,3.6vw,44px);color:var(--brand-900)}
  .cat-sub{margin-top:14px;font-size:17px;line-height:1.9;color:var(--ink-2);max-width:640px}
  .cat-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
  .badge{display:inline-block;padding:6px 14px;border-radius:999px;font-size:13px;background:#fff;color:var(--brand-700);border:1px solid var(--line)}
  .badge-accent{background:var(--accent-100);color:#A85F12;border-color:transparent}

  /* 筛选 chips */
  .filter-band{background:var(--bg);border-bottom:1px solid var(--line);padding:16px 0}
  .filter-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none}
  .filter-scroll::-webkit-scrollbar{display:none}
  .filter-label{flex:0 0 auto;font-size:13px;color:var(--ink-3);padding-right:4px}
  .filter-chip{flex:0 0 auto;padding:9px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:14px;transition:border-color .2s ease,color .2s ease,background .2s ease}
  .filter-chip:hover{border-color:var(--brand-700);color:var(--brand-700);background:var(--brand-100)}

  /* 板块 */
  .section{padding:56px 0}
  @media (min-width:1024px){ .section{padding:92px 0} }
  .section-alt{background:#fff}
  .section-label{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.08em;color:var(--brand-700);font-weight:600;margin-bottom:16px}
  .section-label .rule{display:inline-block;width:24px;height:3px;border-radius:2px;background:var(--accent-500)}
  .section h2{font-size:clamp(24px,3vw,34px);color:var(--brand-900)}
  .section-sub{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:720px}

  /* 12 栅格 */
  .grid-12{display:grid;gap:20px;grid-template-columns:1fr;margin-top:36px}
  @media (min-width:768px){ .grid-12{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){
    .grid-12{grid-template-columns:repeat(12,1fr);gap:24px}
    .col-3{grid-column:span 3}
    .col-5{grid-column:span 5}
    .col-6{grid-column:span 6}
    .col-7{grid-column:span 7}
    .col-12{grid-column:span 12}
  }

  /* 卡片 */
  .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);padding:14px;display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);border-color:#C6D6D1}
  .card:hover .card-title{color:var(--brand-600)}
  .card-cover{border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:linear-gradient(135deg,var(--brand-100),var(--accent-100))}
  .card-cover img{width:100%;height:100%;object-fit:cover}
  .card-body{padding:18px 8px 6px;display:flex;flex-direction:column;gap:12px;flex:1}
  .card-title{font-size:18px;color:var(--brand-900);transition:color .2s ease}
  .card-text{font-size:15px;line-height:1.9;color:var(--ink-2)}
  .card-list{display:flex;flex-direction:column;gap:8px}
  .card-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2);line-height:1.8}
  .card-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--accent-500)}
  .card-more{margin-top:auto;padding-top:6px;font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
  .card-more .arrow{transition:transform .2s ease;display:inline-block}
  .card:hover .card-more .arrow{transform:translateX(4px)}
  .card-tag{align-self:flex-start;font-size:12px;padding:4px 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-700)}
  .card-sm .card-title{font-size:17px}
  .card-sm .card-cover{aspect-ratio:16/9}

  /* 数据条 */
  .stat-row{display:grid;gap:18px;grid-template-columns:repeat(2,1fr)}
  @media (min-width:1024px){ .stat-row{grid-template-columns:repeat(4,1fr);gap:24px} }
  .stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;box-shadow:var(--shadow-1)}
  .stat-num{font-family:var(--font-serif);color:var(--accent-500);font-weight:700;font-size:clamp(26px,3vw,36px);line-height:1.15}
  .stat-cap{margin-top:8px;font-size:14px;color:var(--ink-2)}

  /* 清单面板 */
  .panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-1)}
  @media (min-width:768px){ .panel{padding:32px} }
  .panel h3{font-size:19px;color:var(--brand-900)}
  .panel p{margin-top:12px;font-size:15px;color:var(--ink-2)}
  .panel-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
  .panel-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.85}
  .panel-list .idx{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:4px}
  .inline-list{display:grid;gap:16px;grid-template-columns:1fr}
  @media (min-width:768px){ .inline-list{grid-template-columns:repeat(3,1fr)} }
  .inline-item{border-left:3px solid var(--brand-100);padding-left:14px}
  .inline-item strong{display:block;font-size:15px;color:var(--brand-900);font-family:var(--font-sans)}
  .inline-item span{display:block;margin-top:6px;font-size:14px;color:var(--ink-2)}

  /* FAQ */
  .faq-grid{display:grid;grid-template-columns:1fr;margin-top:32px}
  @media (min-width:1024px){ .faq-grid{grid-template-columns:1fr 1fr;column-gap:48px} }
  .faq-item{border-top:1px solid var(--line)}
  .faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:20px 0;min-height:48px;font-size:17px;font-weight:600;color:var(--brand-900)}
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--brand-600)}
  .faq-icon{flex:0 0 auto;width:24px;height:24px;line-height:22px;text-align:center;border-radius:999px;border:1px solid var(--line);color:var(--brand-700);font-size:16px;font-weight:600;transition:transform .25s ease,color .2s ease,border-color .2s ease;margin-top:2px}
  .faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--accent-500);border-color:var(--accent-500)}
  .faq-answer{padding:0 0 22px;font-size:16px;line-height:1.9;color:var(--ink-2);max-width:68ch}

  /* 跨分类跳转 */
  .switch-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:34px 0}
  .switch-inner{display:flex;flex-direction:column;gap:18px}
  @media (min-width:768px){ .switch-inner{flex-direction:row;align-items:center;justify-content:space-between} }
  .switch-inner h2{font-size:22px;color:var(--brand-900)}
  .switch-inner p{margin-top:8px;font-size:15px;color:var(--ink-2)}

  /* CTA 与表单 */
  .cta-section{background:var(--accent-100)}
  .cta-grid{display:grid;gap:32px}
  @media (min-width:1024px){ .cta-grid{grid-template-columns:5fr 7fr;gap:60px;align-items:start} }
  .cta-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
  .cta-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.85}
  .cta-list .dot{flex:0 0 auto;width:8px;height:8px;border-radius:999px;background:var(--accent-500);margin-top:12px}
  .form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-2)}
  @media (min-width:768px){ .form-card{padding:34px} }
  .field{margin-bottom:18px}
  .field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
  .field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;font-size:15px;line-height:1.6;transition:border-color .2s ease,box-shadow .2s ease}
  .field textarea{min-height:110px;resize:vertical}
  .field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-700);box-shadow:0 0 0 3px var(--brand-100)}
  .form-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-3)}

  /* 页脚 */
  .site-footer{background:var(--brand-900);color:rgba(255,255,255,.72)}
  .site-footer p{color:rgba(255,255,255,.72)}
  .footer-group summary{list-style:none;cursor:pointer;color:#fff;font-size:15px;font-weight:600;padding-bottom:10px}
  .footer-group summary::-webkit-details-marker{display:none}
  .footer-group-body{font-size:14px;line-height:1.9}
  .footer-link{color:rgba(255,255,255,.72);font-size:14px;border-bottom:2px solid transparent;padding-bottom:2px;display:inline-block;transition:color .2s ease,border-color .2s ease,transform .2s ease}
  .footer-link:hover{color:#fff;border-bottom-color:var(--accent-500);transform:translateX(2px)}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(255,255,255,.6)}
  .footer-bottom p{font-size:13px;color:rgba(255,255,255,.6)}

  @media (max-width:519px){
    .cat-head-inner{gap:12px}
    .card-body{padding:14px 4px 4px}
  }