/* roulang page: index */
:root{
  --c-primary:#E05A2B;
  --c-primary-dark:#BE451C;
  --c-primary-soft:#FBE7DC;
  --c-secondary:#1F6F63;
  --c-secondary-soft:#DCEDE7;
  --c-accent:#F2B75C;
  --c-ink:#1E2226;
  --c-ink-2:#4E5760;
  --c-ink-3:#8A929B;
  --c-bg:#FBF8F3;
  --c-surface:#FFFFFF;
  --c-band:#F4EFE7;
  --c-border:#E6DED2;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(30,34,38,.04),0 6px 16px rgba(30,34,38,.05);
  --shadow-md:0 2px 4px rgba(30,34,38,.05),0 14px 32px rgba(30,34,38,.09);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:0;}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.3;font-weight:800;}
h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;font-weight:700;}
h3{font-size:18px;line-height:1.5;font-weight:700;}
h4{font-size:16px;font-weight:700;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;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;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* ============ 按钮 / 徽章 / 胶囊 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(224,90,43,.24);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px) scale(1.01);}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-soft{background:var(--c-secondary-soft);color:var(--c-secondary);border-color:transparent;}
.btn-soft:hover{background:#cfe6df;color:#175a50;}
.btn-ghost{background:transparent;color:var(--c-ink-2);border-color:var(--c-border);}
.btn-ghost:hover{background:var(--c-band);color:var(--c-ink);}
.btn-block{width:100%;}
.btn:active{transform:translateY(0) scale(.99);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-band);color:var(--c-ink-2);
}
.badge-cat{background:var(--c-secondary-soft);color:var(--c-secondary);}
.badge-accent{background:#FDF0D8;color:#9A6212;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-ink-2);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.chip:hover{background:var(--c-primary-soft);border-color:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none;transform:translateY(-1px);}
.chip.is-solid{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip.is-solid:hover{background:var(--c-primary-dark);color:#fff;}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(30,34,38,.08);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px;padding:10px 0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-ink);}
.brand:hover{text-decoration:none;color:var(--c-ink);}
.brand-mark{width:42px;height:42px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.5px;}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.5px;}
.header-search{
  flex:1 1 auto;display:flex;align-items:center;gap:10px;
  max-width:520px;min-width:0;
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:999px;padding:8px 8px 8px 16px;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.header-search:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(224,90,43,.10);}
.header-search svg{flex-shrink:0;color:var(--c-ink-3);}
.header-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;font-size:14px;color:var(--c-ink);font-family:inherit;outline:none;}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search .btn{padding:8px 16px;font-size:13px;border-radius:999px;}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.header-link{font-size:14px;color:var(--c-ink-2);font-weight:600;}
.header-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;background:var(--c-band);border:1px solid var(--c-border);border-radius:10px;color:var(--c-ink);cursor:pointer;}
.nav-row{border-top:1px solid var(--c-border);background:var(--c-surface);}
.nav-tabs{display:flex;align-items:center;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none;}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--c-ink-2);white-space:nowrap;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.nav-tab:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none;}
.nav-tab.is-active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.nav-tab.is-active:hover{background:var(--c-primary-dark);color:#fff;}
.mobile-drawer{display:none;border-top:1px solid var(--c-border);background:var(--c-surface);padding:16px 0 22px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:14px;}
.mobile-drawer .drawer-links a{padding:10px 4px;font-size:15px;font-weight:600;color:var(--c-ink-2);border-bottom:1px dashed var(--c-border);}
.mobile-drawer .drawer-links a:hover{color:var(--c-primary);text-decoration:none;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 64px;background:var(--c-band);}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(251,248,243,.94),rgba(244,239,231,.97)),url('/assets/images/dda054e1b013121e.jpg');
  background-size:cover;background-position:center;
  opacity:.96;
}
.hero-inner{position:relative;z-index:2;max-width:860px;margin:0 auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:6px 16px;border-radius:999px;background:var(--c-surface);
  border:1px solid var(--c-border);color:var(--c-secondary);
  font-size:13px;font-weight:700;letter-spacing:.3px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);}
.hero h1{margin-bottom:18px;}
.hero-lede{font-size:16px;line-height:1.85;color:var(--c-ink-2);max-width:760px;margin:0 auto 28px;}
.hero-search{
  display:flex;align-items:center;gap:10px;
  max-width:640px;margin:0 auto 18px;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:999px;
  padding:8px 8px 8px 20px;box-shadow:var(--shadow-md);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.hero-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 5px rgba(224,90,43,.12),var(--shadow-md);}
.hero-search svg{flex-shrink:0;color:var(--c-ink-3);}
.hero-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:15px;font-family:inherit;color:var(--c-ink);}
.hero-search input::placeholder{color:var(--c-ink-3);}
.hero-search .btn{border-radius:999px;padding:11px 24px;}
.hot-chips{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin-bottom:32px;}
.hot-label{font-size:13px;color:var(--c-ink-3);font-weight:600;}
.hot-chips .chip{padding:6px 14px;font-size:13px;}
.hero-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;}
.hero-stats li{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:14px 24px;min-width:150px;box-shadow:var(--shadow-sm);
}
.hero-stats .num{display:block;font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.2;}
.hero-stats .lbl{display:block;font-size:13px;color:var(--c-ink-3);font-weight:600;}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section--band{background:var(--c-band);}
.section--line{border-top:1px solid var(--c-border);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{display:block;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--c-secondary);margin-bottom:10px;}
.section-title{margin-bottom:12px;}
.section-desc{font-size:15px;color:var(--c-ink-2);line-height:1.8;}

/* ============ 频道速览 ============ */
.channel-band{padding:36px 0;background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.channel-band-inner{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.channel-band-label{font-size:14px;font-weight:700;color:var(--c-ink);flex-shrink:0;}
.channel-pills{display:flex;flex-wrap:wrap;gap:10px;flex:1 1 auto;}
.channel-band-note{font-size:13px;color:var(--c-ink-3);flex:1 1 100%;margin-top:4px;}

/* ============ 下载区 ============ */
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.dl-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:28px 24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.dl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);}
.dl-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary-dark);margin-bottom:16px;
}
.dl-card h3{margin-bottom:8px;}
.dl-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin-bottom:20px;}
.dl-card .btn{margin-top:auto;}
.dl-note{margin-top:20px;font-size:13px;color:var(--c-ink-3);}

/* ============ 功能分组（左标签 + 右内容条） ============ */
.ability-grid{display:grid;grid-template-columns:230px 1fr;gap:36px;align-items:start;}
.ability-tabs{display:flex;flex-direction:column;gap:6px;position:sticky;top:140px;}
.ability-tab{
  text-align:left;padding:14px 18px;border-radius:var(--radius-sm);border:1px solid transparent;
  background:transparent;font-size:15px;font-weight:700;color:var(--c-ink-2);cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.ability-tab:hover{background:var(--c-surface);color:var(--c-primary-dark);}
.ability-tab.is-active{background:var(--c-surface);border-color:var(--c-primary-soft);color:var(--c-primary-dark);box-shadow:var(--shadow-sm);}
.ability-list{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);padding:6px 26px;box-shadow:var(--shadow-sm);}
.ability-row{display:flex;gap:18px;padding:26px 0;border-bottom:1px solid var(--c-border);}
.ability-row:last-child{border-bottom:0;}
.ability-ico{
  width:44px;height:44px;flex-shrink:0;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-secondary-soft);color:var(--c-secondary);font-weight:800;font-size:16px;
}
.ability-row h3{margin-bottom:8px;}
.ability-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.ability-points li{
  font-size:13px;color:var(--c-ink-2);background:var(--c-band);border-radius:999px;padding:5px 13px;
}

/* ============ 参数表 ============ */
.table-wrap{overflow-x:auto;border:1px solid var(--c-border);border-radius:var(--radius-md);background:var(--c-surface);box-shadow:var(--shadow-sm);}
table.spec{width:100%;border-collapse:collapse;min-width:720px;font-size:14px;}
table.spec thead th{
  text-align:left;padding:16px 20px;background:var(--c-band);color:var(--c-ink);
  font-size:13px;font-weight:800;letter-spacing:.5px;border-bottom:1px solid var(--c-border);white-space:nowrap;
}
table.spec tbody td{padding:16px 20px;border-bottom:1px solid var(--c-border);color:var(--c-ink-2);vertical-align:top;}
table.spec tbody tr:nth-child(even){background:#FCFAF6;}
table.spec tbody tr:last-child td{border-bottom:0;}
table.spec td:first-child{color:var(--c-ink);font-weight:700;white-space:nowrap;}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.scene-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:24px 22px 22px 30px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.scene-card::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:4px;background:var(--c-secondary);}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);}
.scene-card h3{margin-bottom:8px;font-size:17px;}
.scene-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin-bottom:14px;}
.scene-card .tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 版块地图 ============ */
.board-map{display:flex;flex-wrap:wrap;gap:12px;}
.board-chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:var(--radius-sm);
  background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-ink-2);
  font-size:14px;font-weight:600;transition:all .18s ease;
}
.board-chip span{font-size:12px;color:var(--c-ink-3);font-weight:600;}
.board-chip:hover{border-color:var(--c-primary);color:var(--c-primary-dark);background:var(--c-primary-soft);text-decoration:none;transform:translateY(-2px);}
.board-chip:hover span{color:var(--c-primary-dark);}

/* ============ 界面演示 ============ */
.demo-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:26px;align-items:start;}
.demo-frame{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-md);
}
.demo-frame .frame-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--c-band);border-bottom:1px solid var(--c-border);}
.demo-frame .dot{width:9px;height:9px;border-radius:50%;background:#D9CFC0;}
.demo-frame .frame-bar span{font-size:12px;color:var(--c-ink-3);margin-left:6px;font-weight:600;}
.demo-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-band);}
.demo-notes{display:flex;flex-direction:column;gap:12px;margin-top:18px;}
.demo-note{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--c-ink-2);}
.demo-note b{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:13px;
}

/* ============ 示例现场 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.case-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);}
.case-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-band);}
.case-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.case-body h3{font-size:17px;}
.case-body p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin:0;}
.case-body .badge{align-self:flex-start;}

/* ============ 发布流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{position:relative;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);padding:24px 22px;box-shadow:var(--shadow-sm);}
.flow-step .step-no{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:10px;background:var(--c-secondary-soft);color:var(--c-secondary);font-weight:800;font-size:14px;margin-bottom:14px;}
.flow-step h3{font-size:16px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin:0;}

/* ============ 展示位三档 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch;}
.plan-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:30px 26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.plan-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.plan-card.is-featured{border:2px solid var(--c-primary);box-shadow:0 12px 32px rgba(224,90,43,.14);}
.plan-flag{
  position:absolute;top:-13px;left:26px;background:var(--c-accent);color:#5C3A06;
  font-size:12px;font-weight:800;padding:4px 14px;border-radius:999px;
}
.plan-card h3{font-size:19px;margin-bottom:8px;}
.plan-sub{font-size:13px;color:var(--c-ink-3);margin-bottom:18px;}
.plan-features{display:flex;flex-direction:column;gap:10px;margin:0 0 24px;flex:1 1 auto;}
.plan-features li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.7;}
.plan-features li::before{content:"✓";color:var(--c-secondary);font-weight:800;flex-shrink:0;}

/* ============ 数据条 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.metric{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);padding:26px 22px;text-align:center;box-shadow:var(--shadow-sm);}
.metric .num{display:block;font-size:34px;font-weight:800;color:var(--c-primary);line-height:1.15;}
.metric .num small{font-size:14px;font-weight:700;color:var(--c-ink-3);margin-left:4px;}
.metric .lbl{display:block;font-size:14px;color:var(--c-ink-2);margin-top:8px;}

/* ============ 资讯列表 CMS ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:24px 22px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:12px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--c-ink-3);}
.news-card h3{font-size:16px;line-height:1.6;}
.news-card h3 a{color:var(--c-ink);}
.news-card h3 a:hover{color:var(--c-primary-dark);text-decoration:none;}
.news-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin:0;flex:1 1 auto;}
.news-link{font-size:14px;font-weight:700;color:var(--c-primary);align-self:flex-start;}
.news-empty{
  grid-column:1/-1;background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--radius-md);
  padding:48px 24px;text-align:center;color:var(--c-ink-2);
}
.news-empty .empty-ico{font-size:30px;display:block;margin-bottom:12px;color:var(--c-ink-3);}
.news-empty p{font-size:15px;margin-bottom:18px;}
.news-more{display:flex;justify-content:center;margin-top:34px;}

/* ============ 专题合集 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.topic-card{
  position:relative;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--c-border);
  box-shadow:var(--shadow-sm);background:var(--c-surface);
  transition:transform .18s ease,box-shadow .18s ease;
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-band);}
.topic-body{position:absolute;left:0;right:0;bottom:0;padding:22px;background:linear-gradient(180deg,rgba(20,22,25,0),rgba(20,22,25,.82));color:#fff;}
.topic-body h3{color:#fff;font-size:18px;margin-bottom:6px;}
.topic-body p{color:rgba(255,255,255,.86);font-size:13px;margin:0;line-height:1.7;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);padding:0 22px;box-shadow:var(--shadow-sm);transition:border-color .18s ease;}
.faq-item[open]{border-left:4px solid var(--c-primary);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 0;font-size:16px;font-weight:700;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;font-weight:700;color:var(--c-primary);flex-shrink:0;}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-answer{padding:0 0 20px;font-size:14px;line-height:1.85;color:var(--c-ink-2);}

/* ============ 收口 CTA 表单 ============ */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);
  padding:44px;box-shadow:var(--shadow-md);
}
.cta-panel h2{margin-bottom:14px;}
.cta-panel .cta-desc{font-size:15px;color:var(--c-ink-2);line-height:1.85;margin-bottom:20px;}
.cta-list{display:flex;flex-direction:column;gap:10px;}
.cta-list li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);}
.cta-list li::before{content:"·";color:var(--c-primary);font-weight:800;}
.form-grid{display:grid;gap:14px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--c-ink-2);margin-bottom:6px;}
.field input,.field select{
  width:100%;padding:12px 14px;font-size:14px;font-family:inherit;color:var(--c-ink);
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--radius-sm);
  outline:none;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field input::placeholder{color:var(--c-ink-3);}
.field input:focus,.field select:focus{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(224,90,43,.12);}
.field .hint{display:block;font-size:12px;color:var(--c-ink-3);margin-top:6px;}
.form-note{font-size:12px;color:var(--c-ink-3);line-height:1.7;margin:0;}

/* ============ 合作共建 ============ */
.partner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;}
.partner-item{
  display:flex;align-items:center;justify-content:center;text-align:center;
  padding:22px 12px;border-radius:var(--radius-sm);border:1px solid var(--c-border);
  background:var(--c-surface);color:var(--c-ink-3);font-size:13px;font-weight:700;line-height:1.5;
  filter:grayscale(1);transition:all .18s ease;
}
.partner-item:hover{filter:grayscale(0);color:var(--c-secondary);border-color:var(--c-secondary-soft);background:var(--c-secondary-soft);}

/* ============ 页脚 ============ */
.site-footer{background:#22262A;color:#C9CDD2;padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:18px;}
.footer-brand .brand-sub{color:#8F969D;}
.footer-about{font-size:14px;line-height:1.85;color:#9AA1A8;max-width:340px;}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.5px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#9AA1A8;transition:color .18s ease;}
.footer-col a:hover{color:var(--c-accent);text-decoration:none;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:#7C838A;
}
.footer-bottom a{color:#9AA1A8;}
.footer-bottom a:hover{color:var(--c-accent);text-decoration:none;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 20px;}
  .ability-grid{grid-template-columns:200px 1fr;gap:26px;}
}
@media (max-width:1024px){
  .header-search{max-width:none;}
  .section{padding:56px 0;}
  .hero{padding:56px 0 52px;}
  .ability-grid{grid-template-columns:1fr;}
  .ability-tabs{position:static;flex-direction:row;overflow-x:auto;padding-bottom:6px;}
  .ability-tab{white-space:nowrap;}
  .demo-grid{grid-template-columns:1fr;}
  .scene-grid,.news-grid,.case-grid,.download-grid,.flow-grid,.plan-grid,.metrics{grid-template-columns:repeat(2,1fr);}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .partner-grid{grid-template-columns:repeat(3,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .header-inner{flex-wrap:wrap;gap:12px;padding:12px 0;}
  .header-search{order:3;flex:1 1 100%;max-width:none;}
  .header-actions .header-link{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-row{display:none;}
  .hero h1{font-size:26px;}
  .hero-lede{font-size:15px;}
  .hero-search{flex-wrap:wrap;border-radius:var(--radius-md);padding:14px;}
  .hero-search .btn{width:100%;}
  .scene-grid,.news-grid,.case-grid,.download-grid,.flow-grid,.plan-grid,.metrics,.topic-grid{grid-template-columns:1fr;}
  .partner-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:44px 0;}
  .section-head{margin-bottom:26px;}
  .metrics{gap:14px;}
}
@media (max-width:560px){
  .brand-name{font-size:17px;}
  .brand-sub{font-size:10px;}
  .hero{padding:42px 0 40px;}
  .hero-stats li{flex:1 1 100%;}
  .btn{width:100%;}
  .header-actions .btn{padding:9px 16px;font-size:13px;}
  .header-actions .btn{width:auto;}
  .hot-chips{justify-content:flex-start;}
  .hero-search .btn{width:100%;}
  .cta-panel{padding:24px;}
  .ability-list{padding:4px 18px;}
  .footer-bottom{justify-content:flex-start;}
}

/* roulang page: category1 */
:root{
  --c-primary:#E05A2B;
  --c-primary-dark:#BE451C;
  --c-primary-soft:#FBE7DC;
  --c-secondary:#1F6F63;
  --c-secondary-soft:#DCEDE7;
  --c-accent:#F2B75C;
  --c-ink:#1E2226;
  --c-ink-2:#4E5760;
  --c-ink-3:#8A929B;
  --c-bg:#FBF8F3;
  --c-surface:#FFFFFF;
  --c-band:#F4EFE7;
  --c-border:#E6DED2;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(30,34,38,.04),0 6px 16px rgba(30,34,38,.05);
  --shadow-md:0 2px 4px rgba(30,34,38,.05),0 14px 32px rgba(30,34,38,.09);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* ============ 按钮 / 徽章 / 胶囊 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(224,90,43,.24);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px) scale(1.01);}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-soft{background:var(--c-secondary-soft);color:var(--c-secondary);border-color:transparent;}
.btn-soft:hover{background:#cfe6df;color:#175a50;}
.btn-ghost{background:transparent;color:var(--c-ink-2);border-color:var(--c-border);}
.btn-ghost:hover{background:var(--c-band);color:var(--c-ink);}
.btn-block{width:100%;}
.btn:active{transform:translateY(0) scale(.99);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-band);color:var(--c-ink-2);
}
.badge-cat{background:var(--c-secondary-soft);color:var(--c-secondary);}
.badge-accent{background:#FDF0D8;color:#9A6212;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-ink-2);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
a.chip:hover{background:var(--c-primary-soft);border-color:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none;transform:translateY(-1px);}
.chip.is-solid{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(30,34,38,.08);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px;padding:10px 0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-ink);}
.brand:hover{text-decoration:none;color:var(--c-ink);}
.brand-mark{width:42px;height:42px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.5px;}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.5px;}
.header-search{
  flex:1 1 auto;display:flex;align-items:center;gap:10px;
  max-width:520px;min-width:0;
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:999px;padding:8px 8px 8px 16px;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.header-search:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(224,90,43,.10);}
.header-search svg{flex-shrink:0;color:var(--c-ink-3);}
.header-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;font-size:14px;color:var(--c-ink);outline:none;}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search .btn{padding:8px 16px;font-size:13px;border-radius:999px;}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.header-link{font-size:14px;color:var(--c-ink-2);font-weight:600;}
.header-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;background:var(--c-band);border:1px solid var(--c-border);border-radius:10px;color:var(--c-ink);cursor:pointer;transition:background-color .18s ease;}
.nav-toggle:hover{background:var(--c-primary-soft);}
.nav-row{border-top:1px solid var(--c-border);background:var(--c-surface);}
.nav-tabs{display:flex;align-items:center;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none;}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--c-ink-2);white-space:nowrap;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.nav-tab:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none;}
.nav-tab.is-active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.nav-tab.is-active:hover{background:var(--c-primary-dark);color:#fff;}
.mobile-drawer{display:none;border-top:1px solid var(--c-border);background:var(--c-surface);padding:16px 0 22px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:14px;}
.mobile-drawer .drawer-links a{padding:10px 4px;font-size:15px;font-weight:600;color:var(--c-ink-2);border-bottom:1px dashed var(--c-border);}
.mobile-drawer .drawer-links a:hover{color:var(--c-primary);text-decoration:none;}

/* ============ 分类页头 ============ */
.page-head{background:var(--c-band);border-bottom:1px solid var(--c-border);padding:36px 0 40px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);flex-wrap:wrap;margin-bottom:16px;}
.breadcrumb a{color:var(--c-ink-2);font-weight:600;}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:none;}
.breadcrumb span.sep{color:var(--c-ink-3);}
.head-flex{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.head-main{max-width:720px;}
.head-main h1{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:800;line-height:1.32;letter-spacing:0;
  color:var(--c-ink);
}
.head-main .head-desc{margin-top:14px;font-size:15px;color:var(--c-ink-2);line-height:1.85;max-width:660px;}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.head-side{display:flex;flex-direction:column;gap:10px;min-width:210px;}
.head-side .side-note{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:14px 18px;box-shadow:var(--shadow-sm);
}
.head-side .side-note strong{display:block;font-size:14px;color:var(--c-ink);}
.head-side .side-note span{font-size:13px;color:var(--c-ink-3);}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section.band{background:var(--c-band);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{
  font-size:clamp(22px,2.2vw,30px);font-weight:800;line-height:1.35;color:var(--c-ink);
}
.section-head p{margin-top:12px;font-size:15px;color:var(--c-ink-2);line-height:1.85;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 场景区 ============ */
.scene-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:40px;align-items:start;}
.scene-figure{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--c-border);
  box-shadow:var(--shadow-md);background:var(--c-band);
}
.scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-list{display:flex;flex-direction:column;}
.scene-item{
  display:flex;gap:16px;padding:20px 0;border-bottom:1px dashed var(--c-border);
}
.scene-item:first-child{padding-top:0;}
.scene-item:last-child{border-bottom:0;padding-bottom:0;}
.scene-dot{
  width:38px;height:38px;flex-shrink:0;border-radius:12px;
  background:var(--c-secondary-soft);color:var(--c-secondary);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.scene-item h3{font-size:17px;font-weight:700;color:var(--c-ink);}
.scene-item p{margin-top:6px;font-size:14px;color:var(--c-ink-2);line-height:1.8;}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}

/* ============ 帖子列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);}
.post-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;}
.post-time{font-size:12px;color:var(--c-ink-3);white-space:nowrap;}
.post-title{font-size:17px;font-weight:700;line-height:1.55;}
.post-title a{color:var(--c-ink);}
.post-title a:hover{color:var(--c-primary);text-decoration:none;}
.post-excerpt{
  margin-top:10px;font-size:14px;color:var(--c-ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-more{
  margin-top:16px;font-size:13px;font-weight:700;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}
.post-more:hover{text-decoration:none;color:var(--c-primary-dark);}
.list-empty{
  background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--radius-md);
  padding:38px 24px;text-align:center;color:var(--c-ink-2);font-size:15px;
}
.list-foot{display:flex;justify-content:center;margin-top:36px;}

/* ============ 频道矩阵 ============ */
.channel-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.channel-cloud .chip{font-size:14px;}
.channel-cloud .chip.is-plain{cursor:default;color:var(--c-ink-2);background:var(--c-surface);}
.channel-cloud .chip.is-plain:hover{transform:none;background:var(--c-surface);border-color:var(--c-border);color:var(--c-ink-2);}

/* ============ 发帖须知 ============ */
.rules-wrap{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-sm);
}
.rule-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 32px;}
.rule-item{display:flex;gap:14px;align-items:flex-start;}
.rule-num{
  width:28px;height:28px;flex-shrink:0;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
}
.rule-item h3{font-size:15px;font-weight:700;color:var(--c-ink);}
.rule-item p{margin-top:6px;font-size:14px;color:var(--c-ink-2);line-height:1.8;}

/* ============ 标签云 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud .chip{font-size:13px;padding:7px 14px;}

/* ============ 下载区 ============ */
.download-inner{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);
  padding:40px;box-shadow:var(--shadow-md);
}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:28px;}
.download-card{
  border:1px solid var(--c-border);border-radius:var(--radius-md);padding:24px;
  background:var(--c-bg);display:flex;flex-direction:column;gap:12px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.download-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:var(--c-primary-soft);}
.download-card h3{font-size:17px;font-weight:800;color:var(--c-ink);}
.download-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8;flex:1 1 auto;}
.download-card .btn{width:100%;}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:4px 22px;box-shadow:var(--shadow-sm);transition:border-color .18s ease;
}
.faq-item[open]{border-color:var(--c-primary-soft);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 0;font-size:16px;font-weight:700;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:700;color:var(--c-primary);line-height:1;
  transition:transform .18s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item p{font-size:14px;color:var(--c-ink-2);line-height:1.85;padding:0 0 18px;border-top:1px dashed var(--c-border);padding-top:14px;}

/* ============ 发布引导 ============ */
.cta-panel{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);
  padding:44px;box-shadow:var(--shadow-md);
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:40px;align-items:center;
}
.cta-copy h2{font-size:clamp(22px,2.2vw,30px);font-weight:800;line-height:1.35;color:var(--c-ink);}
.cta-copy p{margin-top:14px;font-size:15px;color:var(--c-ink-2);line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.cta-form{display:flex;flex-direction:column;gap:14px;}
.cta-form label{font-size:13px;font-weight:700;color:var(--c-ink-2);}
.cta-form input,.cta-form select{
  width:100%;padding:12px 14px;border:1px solid var(--c-border);border-radius:var(--radius-sm);
  background:var(--c-bg);color:var(--c-ink);font-size:14px;outline:none;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.cta-form input:focus,.cta-form select:focus{
  border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(224,90,43,.10);
}
.form-hint{font-size:12px;color:var(--c-ink-3);}

/* ============ 页脚 ============ */
.site-footer{background:#23262A;color:#C9CDD2;padding:56px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.brand-text .brand-name{color:#fff;}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:800;}
.footer-brand .brand-sub{font-size:11px;color:#9AA1A9;display:block;}
.footer-about{font-size:13px;line-height:1.9;color:#9AA1A9;max-width:420px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:13px;color:#9AA1A9;}
.footer-col ul a:hover{color:var(--c-accent);text-decoration:none;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#8A929B;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{max-width:100%;}
}
@media (max-width:1024px){
  .header-search{max-width:none;}
  .scene-layout{grid-template-columns:1fr;gap:28px;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rule-list{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .page-head{padding:28px 0 32px;}
  .header-search{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .download-grid{grid-template-columns:1fr;}
  .download-inner{padding:26px;}
  .head-side{flex-direction:row;flex-wrap:wrap;min-width:0;}
  .head-side .side-note{flex:1 1 45%;}
}
@media (max-width:560px){
  body{font-size:15px;}
  .section{padding:40px 0;}
  .section-head{margin-bottom:26px;}
  .post-grid{grid-template-columns:1fr;}
  .scene-figure img{aspect-ratio:16/10;}
  .rules-wrap{padding:22px;}
  .cta-panel{padding:24px;}
  .cta-actions .btn{width:100%;}
  .head-side .side-note{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-primary:#E05A2B;
  --c-primary-dark:#BE451C;
  --c-primary-soft:#FBE7DC;
  --c-secondary:#1F6F63;
  --c-secondary-soft:#DCEDE7;
  --c-accent:#F2B75C;
  --c-ink:#1E2226;
  --c-ink-2:#4E5760;
  --c-ink-3:#8A929B;
  --c-bg:#FBF8F3;
  --c-surface:#FFFFFF;
  --c-band:#F4EFE7;
  --c-border:#E6DED2;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(30,34,38,.04),0 6px 16px rgba(30,34,38,.05);
  --shadow-md:0 2px 4px rgba(30,34,38,.05),0 14px 32px rgba(30,34,38,.09);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;}
ul,ol{margin:0;padding:0;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(224,90,43,.24);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px) scale(1.01);}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-soft{background:var(--c-secondary-soft);color:var(--c-secondary);border-color:transparent;}
.btn-soft:hover{background:#cfe6df;color:#175a50;}
.btn-ghost{background:transparent;color:var(--c-ink-2);border-color:var(--c-border);}
.btn-ghost:hover{background:var(--c-band);color:var(--c-ink);}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}
.btn:active{transform:translateY(0) scale(.99);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* ===== 徽章 / 胶囊 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-band);color:var(--c-ink-2);
}
.badge-cat{background:var(--c-secondary-soft);color:var(--c-secondary);}
.badge-accent{background:#FDF0D8;color:#9A6212;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-ink-2);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.chip:hover{background:var(--c-primary-soft);border-color:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none;transform:translateY(-1px);}

/* ===== 头部导航 ===== */
.site-header{position:sticky;top:0;z-index:100;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(30,34,38,.08);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px;padding:10px 0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-ink);}
.brand:hover{text-decoration:none;color:var(--c-ink);}
.brand-mark{width:42px;height:42px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.5px;}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.5px;}
.header-search{
  flex:1 1 auto;display:flex;align-items:center;gap:10px;
  max-width:520px;min-width:0;margin:0;
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:999px;padding:8px 8px 8px 16px;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.header-search:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(224,90,43,.10);}
.header-search svg{flex-shrink:0;color:var(--c-ink-3);}
.header-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;font-size:14px;color:var(--c-ink);font-family:inherit;outline:none;}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search .btn{padding:8px 16px;font-size:13px;border-radius:999px;}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.header-link{font-size:14px;color:var(--c-ink-2);font-weight:600;}
.header-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;background:var(--c-band);border:1px solid var(--c-border);border-radius:10px;color:var(--c-ink);cursor:pointer;transition:background-color .18s ease;}
.nav-toggle:hover{background:var(--c-primary-soft);}
.nav-row{border-top:1px solid var(--c-border);background:var(--c-surface);}
.nav-tabs{display:flex;align-items:center;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none;}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--c-ink-2);white-space:nowrap;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.nav-tab:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none;}
.nav-tab.is-active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.nav-tab.is-active:hover{background:var(--c-primary-dark);color:#fff;}
.mobile-drawer{display:none;border-top:1px solid var(--c-border);background:var(--c-surface);padding:16px 0 22px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:14px;}
.mobile-drawer .drawer-links a{padding:10px 4px;font-size:15px;font-weight:600;color:var(--c-ink-2);border-bottom:1px dashed var(--c-border);}
.mobile-drawer .drawer-links a:hover{color:var(--c-primary);text-decoration:none;}
.mobile-drawer .btn{margin-top:16px;}

/* ===== 文章头部 ===== */
.article-headband{background:var(--c-band);border-bottom:1px solid var(--c-border);padding:26px 0 34px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
.breadcrumb a{color:var(--c-ink-2);font-weight:600;}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:none;}
.breadcrumb .sep{color:var(--c-ink-3);}
.breadcrumb .current{color:var(--c-ink-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head h1{
  font-size:clamp(25px,3.2vw,40px);
  font-weight:800;letter-spacing:0;line-height:1.34;
  margin:16px 0 18px;color:var(--c-ink);max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--c-ink-3);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-ink-3);opacity:.6;}
.head-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}

/* ===== 文章主体布局 ===== */
.article-section{padding:44px 0 64px;}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:40px;align-items:start;justify-content:center;}
.article-main{min-width:0;}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-lg);padding:40px 42px;box-shadow:var(--shadow-sm);
  font-size:16px;line-height:1.9;color:var(--c-ink-2);word-wrap:break-word;overflow-wrap:break-word;
}
.article-body h2{
  font-size:clamp(20px,2vw,26px);font-weight:700;color:var(--c-ink);
  margin:1.8em 0 .75em;padding-left:14px;border-left:4px solid var(--c-primary);line-height:1.45;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:18px;font-weight:700;color:var(--c-ink);margin:1.6em 0 .6em;}
.article-body h4{font-size:16px;font-weight:700;color:var(--c-ink);margin:1.4em 0 .5em;}
.article-body p{margin:0 0 1.1em;line-height:1.9;}
.article-body a{color:var(--c-primary);text-decoration:underline;}
.article-body strong{color:var(--c-ink);font-weight:700;}
.article-body blockquote{
  margin:1.4em 0;padding:14px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--c-ink-2);font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.1em;}
.article-body li{margin-bottom:.55em;}
.article-body ul li::marker{color:var(--c-primary);}
.article-body ol li::marker{color:var(--c-primary);font-weight:700;}
.article-body img{border-radius:12px;margin:1.4em auto;box-shadow:var(--shadow-sm);height:auto;}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-3);margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th,.article-body td{border-bottom:1px solid var(--c-border);padding:10px 12px;text-align:left;vertical-align:top;}
.article-body thead th{background:var(--c-band);font-weight:700;color:var(--c-ink);}
.article-body tbody tr:nth-child(even){background:#FCFAF6;}
.article-body code{
  background:var(--c-secondary-soft);color:#155e54;padding:2px 6px;border-radius:6px;font-size:.92em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{background:#1E2226;color:#F4EFE7;padding:16px 18px;border-radius:12px;overflow-x:auto;margin:1.4em 0;}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:2em 0;}
.article-empty{text-align:center;padding:64px 24px;}
.article-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.article-empty h2{font-size:22px;color:var(--c-ink);margin:0 0 10px;border:0;padding:0;}
.article-empty p{color:var(--c-ink-3);margin:0 0 22px;}

/* ===== 文末标签与分享 ===== */
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:22px;padding:18px 22px;background:var(--c-surface);
  border:1px solid var(--c-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--c-secondary-soft);color:var(--c-secondary);
  transition:background-color .18s ease,color .18s ease;
}
.tag:hover{background:#cfe6df;color:#175a50;text-decoration:none;}
.share-group{display:flex;flex-wrap:wrap;gap:8px;}

/* ===== 通用内容卡片 ===== */
.panel{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-md);box-shadow:var(--shadow-sm);
  padding:24px;margin-top:22px;
  transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease;
}
.panel:hover{box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);transform:translateY(-2px);}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.panel-title{font-size:18px;font-weight:800;color:var(--c-ink);}
.panel-sub{font-size:13px;color:var(--c-ink-3);}

.block-card{display:flex;gap:20px;align-items:flex-start;}
.block-thumb{width:150px;flex:0 0 150px;aspect-ratio:16/10;object-fit:cover;border-radius:12px;background:var(--c-band);}
.block-info{min-width:0;}
.block-info h3{font-size:17px;font-weight:800;margin-bottom:8px;color:var(--c-ink);}
.block-info p{font-size:14px;color:var(--c-ink-2);margin:0 0 14px;line-height:1.75;}
.block-links{display:flex;flex-wrap:wrap;gap:10px;}

.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.scene-card{
  border:1px solid var(--c-border);border-radius:var(--radius-md);background:var(--c-surface);
  padding:0;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-band);border-radius:0;}
.scene-card .scene-body{padding:14px 16px 16px;}
.scene-card h3{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--c-ink);}
.scene-card p{font-size:13px;color:var(--c-ink-2);margin:0 0 12px;line-height:1.7;}
.scene-card .scene-link{font-size:13px;font-weight:700;color:var(--c-primary);}
.scene-card .scene-link:hover{text-decoration:none;color:var(--c-primary-dark);}

.prevnext{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:22px;}
.prevnext a{
  display:block;padding:18px 20px;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-md);box-shadow:var(--shadow-sm);color:var(--c-ink-2);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.prevnext a:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--c-primary-soft);color:var(--c-ink);}
.prevnext .pn-label{display:block;font-size:12px;color:var(--c-ink-3);margin-bottom:6px;font-weight:600;}
.prevnext .pn-title{display:block;font-size:15px;font-weight:700;color:var(--c-ink);}

/* ===== 评论 ===== */
.comment-form .field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--c-ink-2);margin-bottom:6px;}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--c-border);border-radius:var(--radius-sm);
  background:var(--c-surface);font-family:inherit;font-size:15px;color:var(--c-ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3);}
.field input:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(224,90,43,.12);outline:none;}
.field textarea{min-height:110px;resize:vertical;line-height:1.75;}
.form-tip{font-size:12px;color:var(--c-ink-3);margin:0 0 14px;}

/* ===== 侧栏 ===== */
.article-side{min-width:0;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:20px;box-shadow:var(--shadow-sm);margin-bottom:20px;
}
.side-title{
  font-size:15px;font-weight:800;color:var(--c-ink);
  margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--c-border);
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--c-primary);display:inline-block;}
.toc-card{position:sticky;top:86px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto;}
.toc-link{
  display:block;font-size:13.5px;line-height:1.6;color:var(--c-ink-2);
  padding:7px 10px;border-radius:8px;border-left:3px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.toc-link:hover{background:var(--c-band);color:var(--c-ink);text-decoration:none;}
.toc-link.is-sub{padding-left:22px;font-size:13px;color:var(--c-ink-3);}
.toc-link.is-current{background:var(--c-primary-soft);color:var(--c-primary-dark);border-left-color:var(--c-primary);font-weight:700;}
.side-links{display:flex;flex-direction:column;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 4px;font-size:14px;font-weight:600;color:var(--c-ink-2);
  border-bottom:1px dashed var(--c-border);transition:color .18s ease,padding-left .18s ease;
}
.side-links a:last-child{border-bottom:0;}
.side-links a:hover{color:var(--c-primary);padding-left:8px;text-decoration:none;}
.side-links .arrow{color:var(--c-ink-3);font-size:12px;}

.download-card{background:linear-gradient(180deg,#FFF9F4 0%,#FFFFFF 62%);border-color:#F3DCCF;}
.download-card .download-note{font-size:13px;color:var(--c-ink-2);margin:0 0 14px;line-height:1.75;}
.download-list{display:flex;flex-direction:column;gap:10px;}
.download-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 16px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;
  border:1px solid var(--c-primary);color:var(--c-primary);background:var(--c-surface);
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.download-btn:hover{background:var(--c-primary);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 18px rgba(224,90,43,.22);}
.download-btn.is-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(224,90,43,.22);}
.download-btn.is-primary:hover{background:var(--c-primary-dark);color:#fff;}
.download-btn svg{flex-shrink:0;}

.publish-card{background:var(--c-secondary-soft);border-color:#C9E3DB;}
.publish-card .side-title{border-bottom-color:#C9E3DB;}
.publish-card .side-title::before{background:var(--c-secondary);}
.publish-card p{font-size:13.5px;color:#2C5A52;margin:0 0 14px;line-height:1.75;}

/* ===== 页脚 ===== */
.site-footer{background:#26221E;color:#D9D2C8;margin-top:56px;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.3;}
.footer-brand .brand-name{font-size:18px;font-weight:800;color:#FFFFFF;letter-spacing:.5px;}
.footer-brand .brand-sub{font-size:11px;color:#9C948A;letter-spacing:.5px;}
.footer-about{font-size:14px;line-height:1.85;color:#B6ADA1;margin:0;}
.footer-col h4{font-size:15px;color:#FFFFFF;margin:0 0 14px;font-weight:700;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#C3BAAF;font-size:14px;transition:color .18s ease;}
.footer-col a:hover{color:#FFFFFF;text-decoration:none;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);margin-top:44px;padding:18px 0 24px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#9C948A;
}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .container{padding:0 18px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:30px;}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px;}
  .article-body{padding:32px 28px;}
  .toc-card{position:static;}
  .toc-list{max-height:none;}
  .article-side{order:2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:900px){
  .header-inner .header-search{display:none;}
}
@media (max-width:768px){
  .nav-toggle{display:inline-flex;}
  .header-actions .header-link{display:none;}
  .header-inner{min-height:64px;gap:12px;}
  .article-headband{padding:20px 0 26px;}
  .article-section{padding:28px 0 48px;}
  .article-body{padding:24px 18px;border-radius:var(--radius-md);}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .prevnext{grid-template-columns:1fr;}
  .block-card{flex-direction:column;}
  .block-thumb{width:100%;flex:none;aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:40px;}
}
@media (max-width:560px){
  body{font-size:15.5px;}
  .brand-name{font-size:17px;}
  .brand-sub{font-size:10px;}
  .brand-mark{width:38px;height:38px;}
  .scene-grid{grid-template-columns:1fr;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .share-group{width:100%;}
  .share-group .btn{flex:1 1 auto;}
  .article-body h2{font-size:19px;}
  .panel{padding:18px;}
  .side-card{padding:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}