/* roulang page: index */
:root{
  --ink:#16181B;
  --ink-2:#24262A;
  --accent:#D94A26;
  --moss:#2E5E4E;
  --paper:#F4F1EB;
  --card:#FFFFFF;
  --soft:#EDE9E1;
  --text:#1B1D21;
  --text-2:#565A61;
  --text-3:#8A8F96;
  --line:rgba(20,22,26,.10);
  --line-strong:rgba(20,22,26,.18);
  --r-card:14px;
  --r-sm:10px;
  --r-shot:22px;
  --r-pill:999px;
  --shadow-card:0 1px 2px rgba(20,22,26,.05),0 24px 48px -32px rgba(20,22,26,.18);
  --shadow-card-hover:0 2px 4px rgba(20,22,26,.06),0 32px 56px -30px rgba(20,22,26,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{line-height:1.15;letter-spacing:-.02em;font-weight:750}
::selection{background:rgba(217,74,38,.18)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:104px 0}
.section--tight{padding:72px 0}
.section--flush{padding-top:0}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper);
  padding:16px 0 10px;
}
.nav-card{
  display:flex;
  align-items:center;
  gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:10px 12px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding-right:6px}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--ink);color:var(--paper);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;
  transition:background .22s var(--ease);
}
.brand:hover .brand-mark{background:var(--accent)}
.brand-name{font-size:15px;font-weight:750;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;overflow:hidden}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 13px;
  border-radius:var(--r-sm);
  font-size:13.5px;font-weight:600;color:var(--text-2);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item i{font-size:13px;color:var(--text-3);transition:color .2s var(--ease)}
.nav-item::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-item:hover{background:var(--soft);color:var(--text)}
.nav-item:hover i{color:var(--accent)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.is-active{background:var(--ink);color:var(--paper)}
.nav-item.is-active i{color:rgba(244,241,235,.7)}
.nav-item.is-active::after{display:none}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:38px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--text);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--soft);border-color:var(--line-strong)}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

.nav-drawer{display:none;margin-top:10px}
.nav-drawer.is-open{display:block;animation:drawerIn .24s var(--ease) both}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.drawer-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:12px;
}
.drawer-item{
  display:flex;align-items:center;gap:9px;
  min-height:44px;padding:0 12px;
  border-radius:var(--r-sm);
  background:var(--paper);
  font-size:13.5px;font-weight:600;color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.drawer-item i{font-size:13px;color:var(--text-3)}
.drawer-item:hover,.drawer-item.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-item:hover i,.drawer-item.is-active i{color:rgba(244,241,235,.7)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:52px;padding:0 26px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:650;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn .arrow{transition:transform .22s var(--ease);font-size:12px}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(22,24,27,.04)}
.btn-light{background:var(--paper);color:var(--ink)}
.btn-light:hover{background:var(--accent);color:#fff}
.btn-outline-light{background:transparent;border-color:rgba(244,241,235,.28);color:var(--paper)}
.btn-outline-light:hover{border-color:var(--paper);background:rgba(244,241,235,.08)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:var(--r-sm)}
.btn:focus-visible,.link-more:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-block{width:100%}

.link-more{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:650;color:var(--text);
  padding-bottom:3px;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.link-more:hover::after{transform:scaleX(1)}
.link-more:hover{color:var(--accent)}

/* ============ 首屏 ============ */
.hero{
  position:relative;
  padding:52px 0 0;
  background-image:
    linear-gradient(rgba(20,22,26,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,22,26,.055) 1px,transparent 1px);
  background-size:44px 44px;
  background-position:center top;
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:12px;font-weight:650;letter-spacing:.06em;color:var(--text-2);
  box-shadow:0 1px 2px rgba(20,22,26,.04);
}
.hero-eyebrow .dot-live{
  width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 3px rgba(217,74,38,.14);
}
.hero-title{
  font-size:clamp(34px,4.6vw,60px);
  line-height:1.08;
  letter-spacing:-.025em;
  margin-top:22px;
  max-width:15em;
}
.hero-title span{display:block}
.hero-title em{font-style:normal;color:var(--accent)}
.hero-sub{
  margin-top:22px;
  font-size:17px;line-height:1.8;color:var(--text-2);
  max-width:30em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:30px;
  font-size:13px;color:var(--text-3);
}
.hero-meta li{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--moss);font-size:12px}

.hero-visual{position:relative}
.hero-frame{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--ink);
}
.hero-frame img{width:100%;aspect-ratio:16/11;object-fit:cover;opacity:.96}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,24,27,.06),rgba(22,24,27,.42));
  pointer-events:none;
}
.hero-frame-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(244,241,235,.94);
  font-size:12.5px;font-weight:650;color:var(--ink);
}
.hero-frame-tag i{color:var(--moss);font-size:11px}
.float-card{
  position:absolute;right:-14px;bottom:-22px;
  width:196px;padding:16px 18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
}
.float-card .fc-label{font-size:11px;letter-spacing:.1em;color:var(--text-3);font-variant-numeric:tabular-nums}
.float-card .fc-value{font-size:22px;font-weight:750;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-top:4px}
.float-card .fc-note{font-size:12.5px;color:var(--text-2);margin-top:2px}

/* 数据条 */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:64px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.stat{padding:24px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .stat-num{
  font-size:26px;font-weight:750;letter-spacing:-.02em;color:var(--moss);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat .stat-num small{font-size:13px;font-weight:600;margin-left:3px;color:var(--text-2)}
.stat .stat-label{font-size:13px;color:var(--text-2);margin-top:6px}

/* ============ 板块头 ============ */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;flex-wrap:wrap;margin-bottom:48px;
}
.sec-title{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.sec-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:26px;padding:0 8px;
  background:var(--card);border:1px solid var(--line);border-radius:7px;
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.sec-title h2{font-size:clamp(26px,3vw,40px);letter-spacing:-.025em;line-height:1.15}
.sec-desc{font-size:15px;color:var(--text-2);max-width:34em;line-height:1.8}
.sec-badge{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 13px;border-radius:var(--r-pill);
  background:var(--soft);font-size:12.5px;font-weight:650;color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.sec-badge i{color:var(--moss);font-size:11px}

/* ============ 价值区 非对称双栏 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.split-left h2{font-size:clamp(26px,3vw,40px);letter-spacing:-.025em;line-height:1.16}
.split-left p{margin-top:20px;font-size:16px;color:var(--text-2);line-height:1.85}
.split-left .link-more{margin-top:26px}

.num-item{
  display:grid;grid-template-columns:64px 1fr;gap:18px;
  padding:24px 0;
  border-top:1px solid var(--line);
}
.num-item:last-child{border-bottom:1px solid var(--line)}
.num-idx{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);
  font-variant-numeric:tabular-nums;padding-top:4px;
}
.num-body h3{font-size:19px;letter-spacing:-.01em;line-height:1.3}
.num-body p{margin-top:8px;font-size:15px;color:var(--text-2);line-height:1.75}

/* ============ 截图轮播 ============ */
.shots-wrap{position:relative}
.shots{
  display:flex;gap:var(--gap);
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;
  scroll-behavior:smooth;
  padding-bottom:8px;
  -ms-overflow-style:none;scrollbar-width:none;
}
.shots::-webkit-scrollbar{display:none}
.shot{flex:0 0 236px;scroll-snap-align:start}
.shot-frame{
  position:relative;
  border-radius:var(--r-shot);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--soft);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.shot-frame img{width:100%;aspect-ratio:9/17;object-fit:cover}
.shot:hover .shot-frame{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(217,74,38,.35)}
.shot figcaption{
  margin-top:12px;font-size:14px;font-weight:650;color:var(--text);
  display:flex;align-items:center;gap:8px;
}
.shot figcaption span{
  font-size:11px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.shots-nav{display:flex;align-items:center;gap:16px;margin-top:28px}
.round-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text);font-size:13px;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.round-btn:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.round-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.dots{display:flex;align-items:center;gap:8px}
.dot{
  width:6px;height:6px;border-radius:var(--r-pill);
  background:rgba(20,22,26,.22);
  transition:width .24s var(--ease),background .24s var(--ease);
  padding:0;
}
.dot.is-on{width:18px;background:var(--accent)}

/* ============ 系统要求 ============ */
.req-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.req-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:8px 26px 14px;
}
.req-card h3{
  font-size:13px;letter-spacing:.1em;font-weight:700;color:var(--text-3);
  padding:18px 0 12px;
}
.req-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 0;border-top:1px solid var(--line);
}
.req-key{font-size:14.5px;color:var(--text-2)}
.req-val{font-size:14.5px;font-weight:650;color:var(--text);display:inline-flex;align-items:center;gap:9px;font-variant-numeric:tabular-nums;text-align:right}
.ok-tag{
  display:inline-flex;align-items:center;gap:5px;
  height:22px;padding:0 9px;border-radius:var(--r-pill);
  background:rgba(46,94,78,.1);color:var(--moss);
  font-size:11.5px;font-weight:700;letter-spacing:.03em;
}
.ok-tag i{font-size:9px}

/* ============ 评价墙 ============ */
.reviews{columns:4;column-gap:var(--gap)}
.review-card{
  break-inside:avoid;
  margin-bottom:var(--gap);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:22px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(217,74,38,.35)}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:12px;
  background:var(--soft);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:750;flex:0 0 auto;
}
.review-name{font-size:14px;font-weight:700;line-height:1.3}
.review-sub{font-size:12px;color:var(--text-3);margin-top:2px}
.stars{display:flex;gap:3px;margin-top:14px;color:var(--accent);font-size:11px}
.review-text{margin-top:10px;font-size:14px;line-height:1.75;color:var(--text-2)}
.review-time{margin-top:14px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ============ 下载区 ============ */
.download{
  background:var(--ink);
  color:var(--paper);
  padding:88px 0;
  background-image:
    linear-gradient(rgba(244,241,235,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(244,241,235,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.dl-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:center}
.dl-title{font-size:clamp(26px,3vw,40px);letter-spacing:-.025em;line-height:1.16;color:var(--paper)}
.dl-desc{margin-top:20px;font-size:15.5px;line-height:1.85;color:rgba(244,241,235,.62);max-width:28em}
.qr{
  margin-top:32px;display:flex;align-items:center;gap:18px;
  background:var(--card);border-radius:var(--r-card);padding:16px 18px;
  max-width:330px;
}
.qr-box{
  width:78px;height:78px;flex:0 0 auto;border-radius:8px;
  background:
    repeating-linear-gradient(90deg,var(--ink) 0 6px,transparent 6px 12px),
    repeating-linear-gradient(0deg,var(--ink) 0 6px,transparent 6px 12px),
    var(--paper);
  background-blend-mode:multiply;
  border:1px solid var(--line);
}
.qr-txt{font-size:13px;color:var(--text-2);line-height:1.6}
.qr-txt b{display:block;font-size:14px;color:var(--ink);font-weight:700;margin-bottom:4px}
.dl-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dl-card{
  display:flex;align-items:center;gap:14px;
  background:rgba(244,241,235,.05);
  border:1px solid rgba(244,241,235,.16);
  border-radius:var(--r-card);
  padding:18px;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.dl-card:hover{background:var(--ink-2);border-color:rgba(244,241,235,.32)}
.dl-card:hover .dl-arrow{transform:translateX(4px)}
.dl-icon{
  width:40px;height:40px;flex:0 0 auto;border-radius:10px;
  background:rgba(244,241,235,.1);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--paper);font-size:17px;
}
.dl-meta b{display:block;font-size:14.5px;font-weight:700;color:var(--paper)}
.dl-meta small{display:block;font-size:12px;color:rgba(244,241,235,.55);margin-top:2px;font-variant-numeric:tabular-nums}
.dl-arrow{margin-left:auto;font-size:12px;color:rgba(244,241,235,.6);transition:transform .2s var(--ease)}
.dl-note{
  margin-top:26px;font-size:12.5px;color:rgba(244,241,235,.5);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.dl-note i{color:rgba(244,241,235,.5);font-size:11px}
.dl-card:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(217,74,38,.35)}
.news-card:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.news-cover{position:relative;background:var(--soft);overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--soft);color:var(--text-2);
  font-size:11.5px;font-weight:700;letter-spacing:.04em;
  align-self:flex-start;
}
.news-title{
  margin-top:14px;font-size:18px;line-height:1.42;letter-spacing:-.01em;font-weight:750;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  margin-top:10px;font-size:13px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:18px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.news-more{color:var(--accent);font-weight:650}
.empty-state{
  grid-column:1/-1;
  background:var(--soft);border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:48px 26px;text-align:center;
}
.empty-state p{font-size:15px;color:var(--text-2)}
.empty-state .btn{margin-top:22px}

/* ============ FAQ ============ */
.faq-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-item{border-top:1px solid var(--line)}
.faq-item:first-child{border-top:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:24px 26px;text-align:left;
  transition:background .2s var(--ease);
}
.faq-q:hover{background:rgba(237,233,225,.45)}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-3px}
.faq-idx{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--accent);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.faq-q h3{font-size:16.5px;font-weight:700;line-height:1.5;letter-spacing:-.01em}
.faq-arrow{
  margin-left:auto;flex:0 0 auto;font-size:12px;color:var(--text-3);
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--accent)}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .26s var(--ease),opacity .26s var(--ease),padding .26s var(--ease);
  padding:0 26px 0 68px;
}
.faq-item.is-open .faq-a{max-height:340px;opacity:1;padding-bottom:24px}
.faq-a p{font-size:15px;line-height:1.8;color:var(--text-2);border-top:1px solid var(--line);padding-top:16px}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:rgba(244,241,235,.7);padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}
.foot-brand .brand-mark{background:rgba(244,241,235,.1);color:var(--paper)}
.foot-brand .brand-name{color:var(--paper)}
.foot-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(244,241,235,.6);max-width:24em}
.foot-col h4{
  font-size:13px;letter-spacing:.1em;color:rgba(244,241,235,.45);
  font-weight:700;margin-bottom:18px;
}
.foot-col li{margin-bottom:11px}
.foot-col a{font-size:14px;color:rgba(244,241,235,.72);transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--paper);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}
.foot-col p{font-size:14px;line-height:1.85;color:rgba(244,241,235,.6)}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(244,241,235,.14);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(244,241,235,.45);
  font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  .nav-item{padding:0 10px;font-size:13px}
  .nav-card{gap:10px}
}
@media screen and (max-width:1024px){
  .container{padding:0 26px}
  .section{padding:80px 0}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{order:2}
  .float-card{right:12px;bottom:-18px}
  .split{grid-template-columns:1fr;gap:36px}
  .dl-grid{grid-template-columns:1fr;gap:40px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .reviews{columns:2}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .req-grid{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
}
@media screen and (max-width:768px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .hero{padding-top:32px}
  .hero-title{font-size:clamp(30px,7.4vw,42px)}
  .hero-sub{font-size:16px}
  .stat-bar{grid-template-columns:repeat(2,1fr);margin-top:48px}
  .stat{padding:20px}
  .sec-head{margin-bottom:34px;gap:16px}
  .shots{gap:16px}
  .shot{flex:0 0 66vw}
  .dl-cards{grid-template-columns:1fr}
  .dl-card{padding:16px}
  .news-grid{grid-template-columns:1fr}
  .faq-q{padding:20px;gap:12px}
  .faq-a{padding-left:20px;padding-right:20px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{justify-content:flex-start;gap:8px}
}
@media screen and (max-width:520px){
  .nav-card{padding:8px 10px;gap:8px}
  .brand-name{font-size:13.5px}
  .brand-mark{width:30px;height:30px;font-size:13px}
  .reviews{columns:1}
  .hero-actions .btn{width:100%}
  .hero-actions{gap:10px}
  .float-card{position:static;width:100%;margin-top:14px}
  .shot{flex:0 0 82vw}
  .req-row{flex-direction:column;align-items:flex-start;gap:6px}
  .req-val{text-align:left}
  .drawer-grid{grid-template-columns:1fr}
  .dl-cards .dl-card{min-height:56px}
  .sec-title h2{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* roulang page: article */
:root{
  --ink:#16181B;
  --ink-2:#24262A;
  --accent:#D94A26;
  --moss:#2E5E4E;
  --paper:#F4F1EB;
  --card:#FFFFFF;
  --surface:#EDE9E1;
  --text:#1B1D21;
  --text-2:#565A61;
  --text-3:#8A8F96;
  --line:rgba(20,22,26,.10);
  --line-strong:rgba(20,22,26,.20);
  --r-card:14px;
  --r-sm:10px;
  --r-shot:22px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,22,26,.05),0 24px 48px -32px rgba(20,22,26,.18);
  --shadow-hover:0 2px 4px rgba(20,22,26,.06),0 34px 60px -30px rgba(20,22,26,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:104px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.12;font-weight:750}
h2{font-size:clamp(24px,3vw,34px);line-height:1.2;font-weight:720}
h3{font-size:clamp(18px,2vw,22px);line-height:1.35;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.2em;padding-left:1.1em}
button{font-family:inherit}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-3);font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--accent);display:block}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  padding:16px 0 0;
  background:linear-gradient(to bottom,var(--paper) 62%,rgba(244,241,235,0));
}
.nav-card{
  display:flex;align-items:center;gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:12px 16px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--paper);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;transition:background .22s var(--ease)
}
.brand:hover .brand-mark{background:var(--accent)}
.brand-name{font-size:16px;font-weight:750;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 11px;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--text-2);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease)
}
.nav-item i{font-size:12px;color:var(--text-3);transition:color .2s var(--ease)}
.nav-item:hover{background:var(--surface);color:var(--ink)}
.nav-item:hover i{color:var(--ink)}
.nav-item::after{
  content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease)
}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.is-active{background:var(--ink);color:var(--paper)}
.nav-item.is-active i{color:var(--paper)}
.nav-item.is-active::after{display:none}
.nav-right{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:52px;padding:0 26px;border:1px solid transparent;border-radius:var(--r-sm);
  font-size:15px;font-weight:650;letter-spacing:.01em;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn .arrow{transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--paper);box-shadow:0 12px 26px -18px rgba(20,22,26,.9)}
.btn-primary:hover{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);background:rgba(22,24,27,.04)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:var(--r-sm)}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:38px;height:38px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);color:var(--ink);
  font-size:15px;cursor:pointer;align-items:center;justify-content:center
}
.nav-drawer{display:none}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);
  padding:26px 0 0;
}
.crumb a{color:var(--text-2);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:rgba(20,22,26,.24)}
.crumb .current{color:var(--text-3);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{padding:34px 0 0}
.article-head .tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--surface);color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.06em
}
.badge-accent{background:rgba(217,74,38,.10);color:#B03A1B}
.badge-line{background:transparent;border:1px solid var(--line-strong);color:var(--text-2)}
.article-head h1{max-width:940px}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:18px;
  margin-top:26px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3)
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--text-3);font-size:12px}
.meta-row .meta-strong{color:var(--text-2);font-weight:600}

/* ---------- 正文 ---------- */
.article-section{padding:56px 0 var(--sec)}
.article-wrap{position:relative;max-width:1040px;margin:0 auto}
.article-col{max-width:780px}
.article-body{
  font-size:17px;line-height:1.85;color:var(--text);
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(23px,2.6vw,30px);line-height:1.25;
  margin:48px 0 16px;padding-top:22px;border-top:1px solid var(--line)
}
.article-body h3{font-size:clamp(18px,2vw,22px);margin:32px 0 12px}
.article-body h4{font-size:17px;margin:24px 0 10px}
.article-body p{margin:0 0 1.25em;color:var(--text)}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#B03A1B}
.article-body strong{color:var(--ink);font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.15em}
.article-body ul{list-style:none;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.9}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:14px;
  width:10px;height:2px;border-radius:2px;background:var(--accent)
}
.article-body ol li{margin-bottom:10px;line-height:1.9}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  background:var(--surface);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--text-2);font-size:16.5px
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;border-radius:var(--r-card);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  margin:26px 0 10px
}
.article-body figure{margin:26px 0}
.article-body figcaption,
.article-body img + em{
  display:block;text-align:center;font-size:13px;color:var(--text-3);font-style:normal;margin-top:4px
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden
}
.article-body th,.article-body td{
  padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)
}
.article-body th{background:var(--surface);font-weight:650;color:var(--ink);font-size:13.5px;letter-spacing:.04em}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body code{
  background:var(--surface);border-radius:6px;padding:2px 6px;font-size:14.5px;color:var(--ink)
}
.article-rail{
  position:absolute;right:0;top:8px;width:40px;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  position:sticky;top:120px;
}
.rail-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  background:var(--card);border:1px solid var(--line);color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)
}
.rail-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:translateY(-2px)}
.rail-line{width:1px;height:44px;background:var(--line)}
.rail-label{
  writing-mode:vertical-rl;font-size:11px;letter-spacing:.22em;
  color:var(--text-3);text-transform:uppercase
}

/* 空态 */
.empty-card{
  background:var(--surface);
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
  padding:40px 28px;text-align:center
}
.empty-card h3{margin-bottom:10px}
.empty-card p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--sec)}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  flex-wrap:wrap;margin-bottom:28px
}
.sec-head .sec-title{display:flex;align-items:center;gap:14px}
.sec-num{
  width:38px;height:38px;border-radius:var(--r-sm);
  background:var(--card);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.04em
}
.sec-sub{font-size:14px;color:var(--text-2);margin-top:6px}
.link-text{
  position:relative;font-size:14px;font-weight:600;color:var(--ink);
  display:inline-flex;align-items:center;gap:8px
}
.link-text::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;
  background:var(--accent);transition:width .24s var(--ease)
}
.link-text:hover::after{width:100%}
.link-text i{font-size:12px;transition:transform .22s var(--ease)}
.link-text:hover i{transform:translateX(3px)}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(217,74,38,.35)}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-thumb .thumb-badge{
  position:absolute;left:12px;top:12px;height:26px;padding:0 10px;
  border-radius:var(--r-pill);background:rgba(244,241,235,.94);
  color:var(--ink);font-size:11.5px;font-weight:650;letter-spacing:.06em;
  display:inline-flex;align-items:center
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.post-body h3{font-size:18px;line-height:1.45}
.post-body p{font-size:13.5px;line-height:1.75;color:var(--text-2);margin:0}
.post-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-3)
}
.post-foot i{font-size:11px;transition:transform .22s var(--ease)}
.post-card:hover .post-foot i{transform:translateX(3px);color:var(--accent)}

/* ---------- 翻页 ---------- */
.pager{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;
  margin-top:44px
}
.pager-item{
  display:flex;align-items:center;gap:14px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),transform .2s var(--ease)
}
.pager-item:hover{border-color:rgba(217,74,38,.35);transform:translateY(-2px)}
.pager-icon{
  width:36px;height:36px;border-radius:var(--r-sm);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);font-size:13px;flex:0 0 auto
}
.pager-text{font-size:12px;letter-spacing:.12em;color:var(--text-3);text-transform:uppercase}
.pager-title{font-size:14.5px;font-weight:650;color:var(--ink);margin-top:2px}
.pager-next{justify-content:flex-end;text-align:right}
.return-row{margin-top:32px}

/* ---------- 分类入口条 ---------- */
.entry-band{padding:0 0 var(--sec)}
.entry-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:8px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)
}
.entry-card i{font-size:16px;color:var(--accent)}
.entry-card span{font-size:14px;font-weight:650;color:var(--ink);line-height:1.45}
.entry-card:hover{transform:translateY(-3px);border-color:rgba(217,74,38,.35);box-shadow:var(--shadow-hover)}

/* ---------- CTA 深色带 ---------- */
.cta-band{
  position:relative;background:var(--ink);color:var(--paper);
  padding:var(--sec) 0;overflow:hidden
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.16
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(244,241,235,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(244,241,235,.06) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.cta-band h2{color:var(--paper);max-width:14ch}
.cta-band p{color:rgba(244,241,235,.66);font-size:15.5px;margin-top:18px;max-width:44ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cta-band .btn-primary{background:var(--paper);color:var(--ink)}
.cta-band .btn-primary:hover{background:var(--accent);color:#fff}
.cta-band .btn-ghost{border-color:rgba(244,241,235,.28);color:var(--paper)}
.cta-band .btn-ghost:hover{border-color:var(--accent);background:rgba(244,241,235,.06)}
.cta-panel{
  background:rgba(244,241,235,.06);
  border:1px solid rgba(244,241,235,.16);
  border-radius:var(--r-card);
  padding:24px;
  backdrop-filter:none
}
.cta-panel h3{color:var(--paper);font-size:16px;margin-bottom:16px}
.cta-list{display:flex;flex-direction:column}
.cta-list-item{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 0;border-bottom:1px solid rgba(244,241,235,.12);
  font-size:14px;color:rgba(244,241,235,.82);
  transition:color .2s var(--ease)
}
.cta-list-item:last-child{border-bottom:0}
.cta-list-item i{color:rgba(244,241,235,.5);font-size:12px;transition:transform .22s var(--ease)}
.cta-list-item:hover{color:var(--paper)}
.cta-list-item:hover i{transform:translateX(3px);color:var(--accent)}
.cta-note{font-size:12px;color:rgba(244,241,235,.44);margin-top:18px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:rgba(244,241,235,.72);padding:76px 0 30px;margin-top:0}
.site-foot .brand-name{color:var(--paper)}
.site-foot .brand-mark{background:rgba(244,241,235,.10);color:var(--paper)}
.site-foot .brand:hover .brand-mark{background:var(--accent)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:44px}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(244,241,235,.60);margin-top:18px;max-width:34ch}
.foot-col h4{color:var(--paper);font-size:14px;letter-spacing:.06em;margin-bottom:16px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:rgba(244,241,235,.68);transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--accent)}
.foot-col p{font-size:13.5px;line-height:1.85;color:rgba(244,241,235,.55);margin:0}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(244,241,235,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(244,241,235,.44)
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-card{justify-content:space-between}
  .nav-right{margin-left:auto}
  .nav-drawer{
    display:none;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow);margin-top:10px;padding:14px
  }
  .nav-drawer.is-open{display:block;animation:drawerIn .24s var(--ease)}
  .drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .drawer-item{
    display:flex;align-items:center;gap:9px;
    padding:11px 12px;border-radius:var(--r-sm);
    background:var(--paper);font-size:13.5px;color:var(--text-2);
    border:1px solid transparent;transition:background .2s var(--ease),color .2s var(--ease)
  }
  .drawer-item i{font-size:12px;color:var(--text-3)}
  .drawer-item:hover{background:var(--surface);color:var(--ink)}
  .drawer-item.is-active{background:var(--ink);color:var(--paper)}
  .drawer-item.is-active i{color:var(--paper)}
  @keyframes drawerIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .entry-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1024px){
  :root{--sec:80px}
  .article-rail{display:none}
  .article-col{max-width:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-card{padding:10px 12px;gap:10px}
  .brand-name{font-size:14.5px}
  .nav-right .btn-primary{display:none}
  .article-head{padding-top:24px}
  .meta-row{gap:12px;font-size:12.5px}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{margin-top:40px}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pager{grid-template-columns:1fr}
  .pager-next{justify-content:flex-start;text-align:left}
  .site-foot{padding:56px 0 26px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .cta-band{padding:64px 0}
}
@media (max-width:560px){
  :root{--sec:56px}
  h1{font-size:clamp(26px,7.4vw,34px)}
  .card-grid{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr}
  .article-body{font-size:16px}
  .btn{height:52px;padding:0 20px;font-size:14.5px}
  .btn-block{width:100%}
  .article-body blockquote{padding:16px 18px}
  .drawer-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .post-card:hover,.entry-card:hover,.pager-item:hover,.rail-btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#16181B;
  --ink-2:#24262A;
  --accent:#D94A26;
  --moss:#2E5E4E;
  --paper:#F4F1EB;
  --card:#FFFFFF;
  --muted-surface:#EDE9E1;
  --text:#1B1D21;
  --text-2:#565A61;
  --text-3:#8A8F96;
  --on-dark:#F4F1EB;
  --on-dark-2:rgba(244,241,235,.62);
  --line:rgba(20,22,26,.10);
  --line-strong:rgba(20,22,26,.16);
  --r-card:14px;
  --r-sm:10px;
  --r-shot:22px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,22,26,.05),0 24px 48px -32px rgba(20,22,26,.18);
  --shadow-hover:0 1px 2px rgba(20,22,26,.06),0 32px 56px -28px rgba(20,22,26,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--text);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:750;color:var(--text)}
p{margin:0}
button{background:none;border:0;padding:0;font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
::selection{background:rgba(217,74,38,.18)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- header / nav ---------- */
.site-head{position:sticky;top:0;z-index:80;padding:16px 0 10px;background:var(--paper)}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:10px 14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--ink);color:var(--on-dark);
  display:grid;place-items:center;font-size:15px;flex:0 0 auto;
}
.brand-name{font-size:16px;font-weight:750;letter-spacing:-.01em;white-space:nowrap;color:var(--text)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 11px;border-radius:var(--r-sm);
  font-size:13px;color:var(--text-2);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item i{font-size:12.5px;opacity:.85}
.nav-item::after{
  content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-item:hover{background:var(--muted-surface);color:var(--text)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.is-active{background:var(--ink);color:var(--on-dark)}
.nav-item.is-active i{opacity:1}
.nav-item.is-active::after{display:none}
.nav-right{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  background:var(--paper);border:1px solid var(--line);color:var(--text);
  place-items:center;font-size:15px;transition:background .2s var(--ease);
}
.nav-toggle:hover{background:var(--muted-surface)}
.nav-drawer{
  display:none;margin-top:10px;padding:12px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);
}
.nav-drawer.is-open{display:block;animation:drawerIn .24s var(--ease)}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.drawer-item{
  display:flex;align-items:center;gap:9px;padding:11px 12px;border-radius:var(--r-sm);
  background:var(--paper);font-size:14px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-item i{font-size:13px;opacity:.8}
.drawer-item:hover{background:var(--muted-surface);color:var(--text)}
.drawer-item.is-active{background:var(--ink);color:var(--on-dark)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 26px;border-radius:var(--r-sm);
  border:1px solid transparent;font-size:15px;font-weight:650;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn .arrow{transition:transform .22s var(--ease);font-size:13px}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--on-dark)}
.btn-primary:hover{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(20,22,26,.04)}
.btn-sm{height:40px;padding:0 16px;font-size:13px;border-radius:var(--r-sm)}
.btn-light{background:var(--paper);color:var(--ink)}
.btn-light:hover{background:var(--accent);color:#fff}
.btn-outline-light{background:transparent;border-color:rgba(244,241,235,.3);color:var(--on-dark)}
.btn-outline-light:hover{border-color:var(--accent);color:#fff;background:rgba(244,241,235,.06)}

.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:650;
  color:var(--text);position:relative;padding-bottom:3px;
}
.text-link i{font-size:12px;transition:transform .22s var(--ease)}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover i{transform:translateX(4px)}

/* ---------- banner ---------- */
.page-banner{margin-top:24px}
.banner-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  box-shadow:var(--shadow);min-height:460px;display:flex;align-items:flex-end;
  background-image:
    linear-gradient(100deg,rgba(22,24,27,.9) 0%,rgba(22,24,27,.74) 48%,rgba(22,24,27,.36) 100%),
    url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
}
.banner-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(244,241,235,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(244,241,235,.07) 1px,transparent 1px);
  background-size:64px 64px;
}
.banner-inner{position:relative;z-index:2;padding:52px;max-width:820px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--on-dark-2)}
.crumbs a{color:var(--on-dark-2);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{opacity:.5}
.crumbs .cur{color:rgba(244,241,235,.9)}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.08em;color:rgba(244,241,235,.88);
  border:1px solid rgba(244,241,235,.26);
}
.banner-title{display:flex;flex-direction:column;gap:14px;margin-top:20px}
.bt-brand{font-size:14px;letter-spacing:.2em;font-weight:600;color:rgba(244,241,235,.66)}
.bt-main{font-size:clamp(34px,5.2vw,60px);line-height:1.08;letter-spacing:-.02em;font-weight:750;color:var(--on-dark)}
.banner-lead{margin-top:20px;max-width:620px;font-size:16.5px;line-height:1.85;color:rgba(244,241,235,.78)}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- stats ---------- */
.stats-bar{
  margin-top:20px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);
  overflow:hidden;
}
.stat{padding:22px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{
  font-family:Inter,-apple-system,"PingFang SC",sans-serif;
  font-variant-numeric:tabular-nums;font-size:30px;line-height:1.2;
  font-weight:750;letter-spacing:-.02em;color:var(--moss);
}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- sections ---------- */
.section{padding-top:var(--sec)}
.sec-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:36px}
.sec-index{
  flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--card);border:1px solid var(--line);
  display:grid;place-items:center;
  font-family:Inter,-apple-system,sans-serif;font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--accent);
}
.sec-title{font-size:clamp(26px,3.2vw,40px);line-height:1.15;letter-spacing:-.02em}
.sec-desc{margin-top:12px;color:var(--text-2);font-size:16px;max-width:660px;line-height:1.85}

/* split */
.split{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:56px;align-items:center}
.split + .split{margin-top:88px}
.split.reverse .split-media{order:-1}
.split-copy .sec-head{margin-bottom:22px}
.dash-list{display:grid;gap:12px;margin-top:26px}
.dash-list li{position:relative;padding-left:20px;font-size:15.5px;line-height:1.9;color:var(--text-2)}
.dash-list li::before{
  content:"";position:absolute;left:0;top:.86em;width:10px;height:1.5px;background:var(--accent);
}
.split-copy .text-link{margin-top:28px}
.media-frame{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--muted-surface);box-shadow:var(--shadow);
}
.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(217,74,38,.10),rgba(22,24,27,.16));
}
.media-chip{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(244,241,235,.95);color:var(--ink);
  font-size:12px;letter-spacing:.06em;font-weight:650;
}
.media-chip i{color:var(--accent);font-size:11px}

/* asym + numbered list */
.asym{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px}
.num-list{border-top:1px solid var(--line-strong)}
.num-row{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.num{
  font-family:Inter,-apple-system,sans-serif;font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);padding-top:6px;
}
.num-row h3{font-size:19px;line-height:1.35;letter-spacing:-.01em}
.num-row p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(217,74,38,.3)}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;
  padding:22px 24px;text-align:left;font-size:17px;font-weight:650;color:var(--text);
}
.faq-q .qi{
  font-family:Inter,-apple-system,sans-serif;font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);flex:0 0 auto;
}
.faq-q .qt{flex:1 1 auto;line-height:1.5}
.faq-q .chev{color:var(--text-3);font-size:13px;transition:transform .24s var(--ease),color .24s var(--ease)}
.faq-item.is-open .chev{transform:rotate(180deg);color:var(--accent)}
.faq-a{display:none;padding:18px 24px 24px;border-top:1px solid var(--line);color:var(--text-2);font-size:15.5px;line-height:1.9}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:var(--sec);
  background:var(--ink);color:var(--on-dark);
  border-radius:var(--r-card);padding:56px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(244,241,235,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(244,241,235,.06) 1px,transparent 1px);
  background-size:56px 56px;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:44px;align-items:center}
.cta-title{font-size:clamp(26px,3.2vw,38px);line-height:1.16;letter-spacing:-.02em;color:var(--on-dark)}
.cta-title span{color:var(--accent)}
.cta-desc{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--on-dark-2);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-note{
  position:relative;z-index:2;margin-top:34px;padding-top:20px;
  border-top:1px solid rgba(244,241,235,.14);
  font-size:12.5px;letter-spacing:.02em;color:rgba(244,241,235,.5);
}

/* ---------- footer ---------- */
.site-foot{margin-top:var(--sec);background:var(--ink);color:rgba(244,241,235,.7);padding:72px 0 28px}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);gap:44px}
.site-foot .brand-name{color:var(--on-dark)}
.site-foot .brand-mark{background:rgba(244,241,235,.12);color:var(--on-dark)}
.foot-desc{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(244,241,235,.62);max-width:330px}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:var(--on-dark);font-weight:650;margin-bottom:16px}
.foot-col ul{display:grid;gap:10px;font-size:14px}
.foot-col a{color:rgba(244,241,235,.66);transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--accent)}
.foot-col p{font-size:13.5px;line-height:1.9;color:rgba(244,241,235,.58)}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(244,241,235,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(244,241,235,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .nav-right{margin-left:auto}
  .split{gap:44px}
  .asym{gap:40px}
}
@media (max-width:1024px){
  :root{--sec:80px}
  .banner-card{min-height:400px}
  .banner-inner{padding:40px}
  .stats-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .split{grid-template-columns:minmax(0,1fr);gap:32px}
  .split.reverse .split-media{order:0}
  .split + .split{margin-top:64px}
  .asym{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-band{padding:40px}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .site-head{padding-top:12px}
  .nav-card{gap:12px;padding:9px 11px}
  .brand-name{font-size:14.5px}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:14px}
  .nav-card .btn-sm{display:none}
  .banner-card{min-height:360px}
  .banner-inner{padding:26px}
  .banner-lead{font-size:15.5px}
  .banner-actions{gap:10px;margin-top:26px}
  .banner-actions .btn{width:100%}
  .stat{padding:18px 20px}
  .stat-num{font-size:24px}
  .sec-head{gap:12px}
  .sec-index{width:38px;height:38px;font-size:12px}
  .num-row{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:22px 0}
  .faq-q{padding:18px;font-size:15.5px;gap:12px}
  .faq-a{padding:16px 18px 20px;font-size:15px}
  .cta-band{padding:28px 22px;border-radius:var(--r-card)}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .foot-bottom{margin-top:34px}
}
@media (max-width:520px){
  .stats-bar{grid-template-columns:minmax(0,1fr)}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .drawer-grid{grid-template-columns:minmax(0,1fr)}
  .sec-title{font-size:24px}
  .cta-title{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --ink:#16181B;
  --ink-soft:#24262A;
  --accent:#D94A26;
  --moss:#2E5E4E;
  --paper:#F4F1EB;
  --card:#FFFFFF;
  --muted:#EDE9E1;
  --text:#1B1D21;
  --text-2:#565A61;
  --text-3:#8A8F96;
  --line:rgba(20,22,26,.10);
  --line-strong:rgba(20,22,26,.18);
  --light-text:#F4F1EB;
  --light-text-2:rgba(244,241,235,.62);
  --r-card:14px;
  --r-sm:10px;
  --r-shot:22px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(20,22,26,.05), 0 24px 48px -32px rgba(20,22,26,.18);
  --shadow-hover:0 2px 4px rgba(20,22,26,.06), 0 32px 60px -30px rgba(20,22,26,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:32px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
::selection{background:rgba(217,74,38,.18);}
a:focus-visible,button:focus-visible,.nav-item:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:80;
  padding:16px 0 12px;
  background:var(--paper);
}
.nav-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:10px 14px;
  box-shadow:0 1px 2px rgba(20,22,26,.04);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:var(--r-sm);
  background:var(--ink);
  color:var(--light-text);
  font-size:15px;
}
.brand-name{
  font-size:15px;
  font-weight:750;
  letter-spacing:.01em;
  color:var(--text);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  justify-content:center;
  min-width:0;
}
.nav-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:36px;
  padding:0 11px;
  border-radius:var(--r-sm);
  font-size:13px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-item i{font-size:12px;opacity:.75;}
.nav-item:hover{
  background:var(--muted);
  color:var(--text);
  box-shadow:inset 0 -2px 0 var(--accent);
}
.nav-item.is-active{
  background:var(--ink);
  color:var(--light-text);
  box-shadow:none;
}
.nav-item.is-active i{opacity:.9;}
.nav-right{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:38px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--card);
  color:var(--text);
  font-size:15px;
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--muted);border-color:var(--line-strong);}
.nav-drawer{
  display:none;
  margin-top:10px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:12px;
  box-shadow:var(--shadow);
}
.nav-drawer.is-open{display:block;animation:drawerIn .24s var(--ease);}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.drawer-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px;
}
.drawer-item{
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 12px;
  border-radius:var(--r-sm);
  background:var(--paper);
  font-size:13px;
  color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-item i{font-size:12px;color:var(--accent);}
.drawer-item:hover{background:var(--muted);color:var(--text);}
.drawer-item.is-active{background:var(--ink);color:var(--light-text);}
.drawer-item.is-active i{color:var(--light-text-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:52px;
  padding:0 26px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:650;
  cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn .arrow{transition:transform .22s var(--ease);}
.btn-primary{background:var(--ink);color:var(--light-text);}
.btn-primary:hover{background:var(--accent);color:#fff;}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(20,22,26,.04);border-color:var(--ink);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;}
.btn-dark-ghost{border-color:rgba(244,241,235,.28);color:var(--light-text);background:transparent;}
.btn-dark-ghost:hover{background:rgba(244,241,235,.10);border-color:rgba(244,241,235,.6);}

/* ---------- 面包屑 ---------- */
.crumb{
  padding:24px 0 0;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.crumb a{color:var(--text-3);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:rgba(20,22,26,.22);}
.crumb .current{color:var(--text-2);}

/* ---------- 通用板块头 ---------- */
.section{padding:88px 0;}
.section-tight{padding:56px 0 0;}
.sec-head{
  display:flex;
  align-items:flex-start;
  gap:16px;
  margin-bottom:36px;
}
.sec-num{
  flex:0 0 auto;
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:var(--r-sm);
  background:var(--card);
  border:1px solid var(--line);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.sec-title-wrap{max-width:760px;}
.sec-head h2{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.15;
  font-weight:750;
  letter-spacing:-.015em;
}
.sec-head p{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}

/* ---------- Hero ---------- */
.page-hero{
  padding:44px 0 8px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.18fr .82fr;
  gap:56px;
  align-items:center;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--muted);
  color:var(--text-2);
  font-size:12px;
  letter-spacing:.08em;
}
.tag::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(34px,4.6vw,60px);
  line-height:1.08;
  font-weight:750;
  letter-spacing:-.02em;
}
.page-hero h1 span{display:block;}
.hero-sub{
  margin-top:22px;
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:32em;
}
.hero-actions{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-note{
  margin-top:16px;
  font-size:13px;
  color:var(--text-3);
}

/* 实时面板卡 */
.live-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.live-panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.live-dot{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-variant-numeric:tabular-nums;
}
.live-dot::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--moss);
  box-shadow:0 0 0 3px rgba(46,94,78,.14);
}
.live-row{
  display:grid;
  grid-template-columns:1fr auto;
  align-items:center;
  gap:14px;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
}
.live-row:last-of-type{border-bottom:0;}
.live-team{font-size:14px;font-weight:600;}
.live-meta{font-size:12px;color:var(--text-3);margin-top:2px;}
.live-score{
  font-size:20px;
  font-weight:750;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.live-score em{
  font-style:normal;
  color:var(--accent);
}
.live-panel-foot{
  padding:14px 20px;
  border-top:1px solid var(--line);
  background:var(--muted);
  font-size:12px;
  color:var(--text-2);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}

/* ---------- 数据条 ---------- */
.stat-strip{
  margin-top:56px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  overflow:hidden;
}
.stat-cell{
  padding:24px 26px;
  border-right:1px solid var(--line);
}
.stat-cell:last-child{border-right:0;}
.stat-num{
  font-size:30px;
  font-weight:750;
  color:var(--moss);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
  line-height:1.2;
}
.stat-num small{font-size:14px;font-weight:600;margin-left:4px;}
.stat-label{
  margin-top:6px;
  font-size:13px;
  color:var(--text-2);
}

/* ---------- 卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.data-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.data-card:hover{
  transform:translateY(-3px);
  border-color:rgba(217,74,38,.35);
  box-shadow:var(--shadow-hover);
}
.card-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--muted);
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(22,24,27,.06) 0%,rgba(22,24,27,.22) 100%);
  pointer-events:none;
}
.card-badge{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
  height:24px;
  padding:0 10px;
  display:inline-flex;
  align-items:center;
  border-radius:var(--r-pill);
  background:rgba(244,241,235,.94);
  color:var(--ink);
  font-size:11px;
  letter-spacing:.08em;
  font-weight:650;
}
.card-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.card-body h3{
  font-size:19px;
  line-height:1.3;
  font-weight:700;
}
.card-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.card-arrow{
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.data-card:hover .card-arrow{
  background:var(--ink);
  color:var(--light-text);
  border-color:var(--ink);
  transform:translateX(3px);
}

/* ---------- 指标说明列表 ---------- */
.spec-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 48px;
  border-top:1px solid var(--line);
}
.spec-item{
  display:grid;
  grid-template-columns:38px 1fr;
  gap:16px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
}
.spec-idx{
  font-size:13px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
  padding-top:3px;
}
.spec-item h3{
  font-size:17px;
  font-weight:700;
  line-height:1.4;
}
.spec-item p{
  margin-top:6px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:.72fr 1.28fr;
  gap:56px;
  align-items:start;
}
.faq-list{
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 2px;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:650;
  color:var(--text);
  line-height:1.5;
  cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q i{
  flex:0 0 auto;
  font-size:13px;
  color:var(--text-3);
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--accent);}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .24s var(--ease);
}
.faq-a > div{overflow:hidden;}
.faq-a p{
  padding:0 2px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:60ch;
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}

/* ---------- 深色 CTA ---------- */
.dark-cta{
  background:var(--ink);
  color:var(--light-text);
  position:relative;
  overflow:hidden;
}
.dark-cta::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(244,241,235,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(244,241,235,.07) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.dark-cta .container{position:relative;z-index:1;}
.cta-inner{
  padding:80px 0;
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:56px;
  align-items:center;
}
.cta-inner h2{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.15;
  font-weight:750;
  letter-spacing:-.015em;
}
.cta-inner p{
  margin-top:16px;
  font-size:15px;
  line-height:1.85;
  color:var(--light-text-2);
  max-width:36em;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.cta-actions .btn{width:100%;}
.cta-fine{
  margin-top:8px;
  font-size:12px;
  color:var(--light-text-2);
  line-height:1.7;
}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--ink);
  color:var(--light-text);
  padding:64px 0 28px;
  border-top:1px solid rgba(244,241,235,.12);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr .9fr .9fr 1.1fr;
  gap:40px;
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand .brand-mark{background:rgba(244,241,235,.10);}
.foot-brand .brand-name{color:var(--light-text);}
.foot-desc{
  font-size:14px;
  line-height:1.85;
  color:var(--light-text-2);
  max-width:32em;
}
.foot-col h4{
  font-size:13px;
  letter-spacing:.08em;
  color:rgba(244,241,235,.55);
  margin-bottom:16px;
  font-weight:600;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{
  font-size:14px;
  color:rgba(244,241,235,.82);
  transition:color .2s var(--ease);
}
.foot-col a:hover{color:var(--accent);}
.foot-col p{
  font-size:13px;
  line-height:1.85;
  color:var(--light-text-2);
}
.foot-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(244,241,235,.12);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:12px;
  color:rgba(244,241,235,.5);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1100px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-right{margin-left:auto;}
  .nav-card{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:36px;padding:64px 0;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:900px){
  :root{--gutter:24px;}
  .section{padding:72px 0;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .spec-list{grid-template-columns:1fr;gap:0;}
}
@media screen and (max-width:640px){
  :root{--gutter:20px;}
  body{line-height:1.8;}
  .site-head{padding:12px 0 10px;}
  .nav-card{padding:9px 12px;gap:10px;}
  .brand-name{font-size:14px;}
  .btn-sm{height:34px;padding:0 12px;font-size:12px;}
  .btn-sm .arrow{display:none;}
  .page-hero{padding:32px 0 4px;}
  .page-hero h1{font-size:clamp(28px,8vw,38px);}
  .hero-sub{font-size:15px;margin-top:16px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;height:52px;}
  .stat-strip{margin-top:40px;}
  .stat-cell{padding:18px 16px;}
  .stat-num{font-size:24px;}
  .section{padding:56px 0;}
  .sec-head{gap:12px;margin-bottom:26px;}
  .sec-num{width:32px;height:32px;font-size:11px;}
  .card-grid{grid-template-columns:1fr;gap:14px;}
  .card-body{padding:18px;}
  .faq-q{font-size:15px;padding:18px 2px;}
  .faq-a p{font-size:14px;padding-bottom:20px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{margin-top:32px;font-size:11px;}
  .cta-inner{padding:52px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .data-card:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#16181B;
  --ink-soft:#24262A;
  --accent:#D94A26;
  --green:#2E5E4E;
  --paper:#F4F1EB;
  --card:#FFFFFF;
  --surface:#EDE9E1;
  --text:#1B1D21;
  --text-2:#565A61;
  --text-3:#8A8F96;
  --on-dark:#F4F1EB;
  --on-dark-2:rgba(244,241,235,.62);
  --line:rgba(20,22,26,.10);
  --line-strong:rgba(20,22,26,.16);
  --r-card:14px;
  --r-sm:10px;
  --r-shot:22px;
  --r-pill:999px;
  --shadow-card:0 1px 2px rgba(20,22,26,.05),0 24px 48px -32px rgba(20,22,26,.18);
  --shadow-hover:0 2px 4px rgba(20,22,26,.06),0 32px 60px -30px rgba(20,22,26,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover,a:focus,a:visited{color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:72px 0;}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 0 0;
  background:var(--paper);
}
.nav-card{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:10px 12px 10px 16px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-size:16px;
}
.brand-name{font-size:16px;font-weight:750;letter-spacing:-.01em;color:var(--text);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap;}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.nav-item i{font-size:13px;opacity:.8;}
.nav-item::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms var(--ease);
}
.nav-item:hover{background:var(--surface);color:var(--text);}
.nav-item:hover::after{transform:scaleX(1);}
.nav-item.is-active{background:var(--ink);color:var(--on-dark);}
.nav-item.is-active i{opacity:1;}
.nav-item.is-active::after{display:none;}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;font-size:15px;
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.nav-toggle:hover{background:var(--surface);border-color:var(--line-strong);}
.nav-drawer{display:none;margin-top:10px;}
.nav-drawer.is-open{display:block;animation:drawerIn 240ms var(--ease);}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.drawer-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:10px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:14px;
}
.drawer-item{
  display:flex;align-items:center;gap:8px;
  padding:12px 14px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.drawer-item i{font-size:13px;opacity:.8;}
.drawer-item:hover{background:var(--surface);color:var(--text);}
.drawer-item.is-active{background:var(--ink);color:var(--on-dark);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 26px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease);
}
.btn .arrow{font-size:13px;transition:transform 220ms var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-sm);}
.btn-primary{background:var(--ink);color:var(--on-dark);}
.btn-primary:hover{background:var(--accent);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{border-color:var(--ink);background:rgba(20,22,26,.04);}
.btn-light{background:var(--on-dark);color:var(--ink);}
.btn-light:hover{background:var(--accent);color:#fff;}
.btn-outline-light{background:transparent;border-color:rgba(244,241,235,.35);color:var(--on-dark);}
.btn-outline-light:hover{border-color:var(--on-dark);background:rgba(244,241,235,.08);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--accent);
  position:relative;padding-bottom:2px;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width 220ms var(--ease);
}
.link-more:hover::after{width:100%;}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.crumbs a{color:var(--text-2);transition:color 180ms var(--ease);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:rgba(20,22,26,.22);}
.crumbs .is-current{color:var(--text);font-weight:600;}

/* ---------- Hero 横幅 ---------- */
.page-hero{padding-top:28px;}
.hero-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);
  min-height:420px;
  display:flex;align-items:center;
  background:var(--ink);
  box-shadow:var(--shadow-card);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero-card::before{
  content:"";position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.hero-card::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(90deg,rgba(22,24,27,.9) 0%,rgba(22,24,27,.72) 48%,rgba(22,24,27,.28) 100%);
}
.hero-inner{position:relative;z-index:3;padding:56px 48px;max-width:720px;color:var(--on-dark);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--on-dark);opacity:.78;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);}
.hero-inner h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.1;font-weight:750;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-lead{
  font-size:16px;line-height:1.85;color:rgba(244,241,235,.82);
  max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13px;color:var(--on-dark-2);
  border-top:1px solid rgba(244,241,235,.16);
  padding-top:18px;
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{color:var(--accent);font-size:11px;}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:44px;}
.sec-index{
  flex:0 0 auto;width:46px;height:46px;border-radius:var(--r-sm);
  background:var(--card);border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;
  box-shadow:0 1px 2px rgba(20,22,26,.04);
}
.sec-title h2{
  font-size:clamp(24px,3vw,38px);line-height:1.16;font-weight:750;
  letter-spacing:-.02em;color:var(--text);
}
.sec-title p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px;line-height:1.8;}
.sec-head--between{justify-content:space-between;align-items:flex-end;flex-wrap:wrap;}

/* ---------- 步骤流 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:stretch;}
.step{
  position:relative;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  padding:26px 22px 24px;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(217,74,38,.35);}
.step::after{
  content:"";position:absolute;top:48px;right:-24px;width:24px;height:1px;
  background:var(--line-strong);
}
.step:last-child::after{display:none;}
.step-num{
  font-size:40px;line-height:1;font-weight:750;color:var(--green);
  letter-spacing:-.03em;margin-bottom:16px;
}
.step h3{font-size:18px;line-height:1.35;font-weight:700;margin-bottom:10px;}
.step p{font-size:14px;line-height:1.8;color:var(--text-2);}
.step .step-tag{
  display:inline-flex;align-items:center;
  margin-top:16px;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--surface);color:var(--text-2);
  font-size:12px;letter-spacing:.04em;
}

/* ---------- 系统要求定义列表 ---------- */
.spec-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:32px;}
.badge-update{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--card);border:1px solid var(--line);
  font-size:12px;color:var(--text-2);letter-spacing:.04em;
}
.badge-update i{color:var(--green);font-size:11px;}
.spec-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.spec-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  padding:6px 24px 10px;
}
.spec-card h3{
  font-size:15px;font-weight:700;letter-spacing:.04em;
  color:var(--text-3);padding:18px 0 12px;
  border-bottom:1px solid var(--line);
}
.spec-row{
  display:flex;justify-content:space-between;align-items:baseline;gap:18px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:0;}
.spec-key{font-size:14px;color:var(--text-2);flex:0 0 auto;}
.spec-val{font-size:15px;font-weight:600;text-align:right;color:var(--text);line-height:1.6;}
.badge-ok{
  display:inline-flex;align-items:center;gap:6px;
  padding:2px 10px;border-radius:var(--r-pill);
  background:rgba(46,94,78,.08);border:1px solid rgba(46,94,78,.18);
  color:var(--green);font-size:12px;font-weight:600;
}
.badge-ok i{font-size:10px;}

/* ---------- 图文双栏 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/11;background:var(--surface);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media .media-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(22,24,27,.86);color:var(--on-dark);
  border-radius:var(--r-sm);padding:8px 14px;
  font-size:12px;letter-spacing:.06em;
}
.num-list{border-top:1px solid var(--line);}
.num-list li{
  display:grid;grid-template-columns:56px 1fr;gap:18px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.num-list .n{
  font-size:13px;font-weight:700;color:var(--accent);
  letter-spacing:.08em;padding-top:4px;
}
.num-list h3{font-size:17px;font-weight:700;margin-bottom:6px;line-height:1.4;}
.num-list p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  padding:8px 28px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;
  font-size:17px;font-weight:650;line-height:1.5;color:var(--text);
  transition:color 200ms var(--ease);
}
.faq-q .qi{
  flex:0 0 auto;width:28px;height:28px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  display:grid;place-items:center;font-size:11px;color:var(--text-2);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),color 220ms var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q:hover .qi{border-color:rgba(217,74,38,.4);color:var(--accent);}
.faq-item.is-open .faq-q{color:var(--accent);}
.faq-item.is-open .qi{transform:rotate(180deg);border-color:rgba(217,74,38,.4);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);}
.faq-a-inner{
  padding:0 0 24px;border-top:1px solid var(--line);
  padding-top:18px;
}
.faq-a-inner p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:820px;}

/* ---------- 深色 CTA ---------- */
.dl-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--on-dark);
  border-radius:var(--r-card);
  padding:52px 48px;
  display:grid;grid-template-columns:1.25fr 1fr;gap:44px;align-items:center;
}
.dl-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(244,241,235,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(244,241,235,.055) 1px,transparent 1px);
  background-size:56px 56px;
}
.dl-band > *{position:relative;z-index:1;}
.dl-band h2{font-size:clamp(24px,3vw,36px);line-height:1.16;font-weight:750;letter-spacing:-.02em;margin-bottom:14px;}
.dl-band p{font-size:15px;line-height:1.85;color:var(--on-dark-2);max-width:460px;}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;}
.dl-note{
  margin-top:22px;font-size:12px;color:rgba(244,241,235,.45);
  display:flex;align-items:center;gap:8px;
}
.dl-note i{font-size:11px;color:var(--green);}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--ink);color:var(--on-dark);
  padding:72px 0 28px;margin-top:var(--sec);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:48px;
  padding-bottom:52px;border-bottom:1px solid rgba(244,241,235,.14);
}
.foot-brand .brand{margin-bottom:18px;}
.foot-brand .brand-mark{background:var(--accent);color:#fff;}
.foot-brand .brand-name{color:var(--on-dark);}
.foot-desc{font-size:14px;line-height:1.85;color:var(--on-dark-2);max-width:320px;}
.foot-col h4{
  font-size:13px;letter-spacing:.1em;color:var(--on-dark);
  font-weight:700;margin-bottom:18px;
}
.foot-col ul li{margin-bottom:11px;}
.foot-col ul a{
  font-size:14px;color:var(--on-dark-2);
  transition:color 200ms var(--ease);
  position:relative;padding-bottom:1px;
}
.foot-col ul a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--accent);transition:width 220ms var(--ease);
}
.foot-col ul a:hover{color:var(--on-dark);}
.foot-col ul a:hover::after{width:100%;}
.foot-col p{font-size:13px;line-height:1.85;color:var(--on-dark-2);}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding-top:24px;font-size:12px;color:rgba(244,241,235,.45);letter-spacing:.03em;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  .nav-item{padding:0 10px;font-size:13.5px;}
  .nav-links{gap:0;}
}
@media screen and (max-width:1023px){
  :root{--sec:80px;}
  .container{padding:0 24px;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-right .btn-sm{display:none;}
  .nav-card{justify-content:space-between;}
  .hero-inner{padding:44px 32px;max-width:100%;}
  .hero-card{min-height:380px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media{aspect-ratio:16/10;}
  .dl-band{grid-template-columns:1fr;gap:28px;padding:44px 32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .spec-wrap{grid-template-columns:1fr;}
}
@media screen and (max-width:639px){
  :root{--sec:56px;}
  .container{padding:0 20px;}
  body{font-size:15px;}
  .site-head{padding-top:10px;}
  .nav-card{padding:8px 10px 8px 12px;}
  .brand-name{font-size:15px;}
  .hero-card{min-height:0;}
  .hero-inner{padding:36px 22px;}
  .hero-inner h1{font-size:clamp(26px,7.4vw,34px);line-height:1.16;}
  .hero-lead{font-size:14px;margin-bottom:22px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-meta{gap:8px 16px;font-size:12px;}
  .sec-head{gap:12px;margin-bottom:28px;}
  .sec-index{width:40px;height:40px;font-size:12px;}
  .steps{grid-template-columns:1fr;gap:14px;}
  .step{padding:22px 18px;}
  .step-num{font-size:34px;margin-bottom:12px;}
  .spec-card{padding:4px 18px 6px;}
  .spec-row{flex-direction:column;align-items:flex-start;gap:6px;padding:14px 0;}
  .spec-val{text-align:left;}
  .num-list li{grid-template-columns:40px 1fr;gap:12px;padding:18px 0;}
  .faq-card{padding:4px 18px;}
  .faq-q{font-size:16px;padding:18px 0;gap:14px;}
  .faq-a-inner p{font-size:14px;}
  .dl-band{padding:34px 22px;}
  .dl-actions{flex-direction:column;}
  .dl-actions .btn{width:100%;}
  .site-foot{padding:52px 0 22px;margin-top:56px;}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category4 */
:root{
  --ink:#16181B;
  --ink-soft:#24262A;
  --accent:#D94A26;
  --moss:#2E5E4E;
  --paper:#F4F1EB;
  --card:#FFFFFF;
  --muted:#EDE9E1;
  --text:#1B1D21;
  --text-2:#565A61;
  --text-3:#8A8F96;
  --line:rgba(20,22,26,.10);
  --line-strong:rgba(20,22,26,.20);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-card:0 1px 2px rgba(20,22,26,.05), 0 24px 48px -32px rgba(20,22,26,.18);
  --shadow-hover:0 2px 6px rgba(20,22,26,.07), 0 34px 62px -30px rgba(20,22,26,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:750;letter-spacing:-.02em;line-height:1.15}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ============ 导航 ============ */
.site-head{
  position:sticky;top:0;z-index:80;
  background:var(--paper);
  padding:16px 0 8px;
}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  padding:10px 14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--paper);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;
}
.brand-name{font-size:16px;font-weight:750;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:wrap}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 12px;
  font-size:13.5px;color:var(--text-2);
  border-radius:var(--r-sm);
  transition:background .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.nav-item i{font-size:12px;color:var(--text-3);transition:color .22s var(--ease)}
.nav-item::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-item:hover{background:var(--muted);color:var(--text)}
.nav-item:hover i{color:var(--accent)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.is-active{background:var(--ink);color:var(--paper)}
.nav-item.is-active i{color:var(--paper)}
.nav-item.is-active::after{display:none}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:38px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--muted)}
.nav-drawer{
  max-height:0;overflow:hidden;
  transition:max-height .24s var(--ease);
}
.nav-drawer.is-open{max-height:520px}
.drawer-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:10px;
  padding:12px 0 4px;
}
.drawer-item{
  display:flex;align-items:center;gap:9px;
  min-height:46px;padding:0 14px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-sm);font-size:14px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.drawer-item i{font-size:13px;color:var(--text-3)}
.drawer-item:hover{background:var(--muted);color:var(--text)}
.drawer-item.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.drawer-item.is-active i{color:var(--paper)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:650;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn .arrow{transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:#fff}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(20,22,26,.04)}
.btn-light{background:var(--paper);color:var(--ink)}
.btn-light:hover{background:var(--accent);color:#fff}
.btn-line-light{border-color:rgba(244,241,235,.34);color:var(--paper)}
.btn-line-light:hover{border-color:var(--paper);background:rgba(244,241,235,.09)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:var(--r-sm)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:650;color:var(--text);
  padding-bottom:3px;position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.text-link:hover::after{transform:scaleX(1)}

/* ============ 面包屑 / Hero ============ */
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
  padding:14px 0 0;
}
.crumb a{color:var(--text-2);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:var(--line-strong)}
.crumb .now{color:var(--text)}

.page-hero{
  position:relative;overflow:hidden;
  margin-top:20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background-image:
    linear-gradient(96deg,rgba(22,24,27,.90) 0%,rgba(22,24,27,.74) 52%,rgba(22,24,27,.48) 100%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.055) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.055) 0 1px,transparent 1px 72px),
    url("/assets/images/backpic/back-1.png");
  background-size:cover,auto,auto,cover;
  background-position:center,center,center,center;
  color:var(--paper);
  padding:64px 48px 56px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(244,241,235,.72);
  border:1px solid rgba(244,241,235,.26);
  border-radius:999px;padding:5px 14px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.1;letter-spacing:-.02em;
  margin:22px 0 18px;
  max-width:15em;
}
.hero-sub{
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;color:rgba(244,241,235,.74);
  max-width:36em;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  margin-top:30px;padding-top:22px;
  border-top:1px solid rgba(244,241,235,.18);
  font-size:13px;color:rgba(244,241,235,.62);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta i{color:var(--accent);font-size:12px}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  flex-wrap:wrap;margin-bottom:42px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-3);font-weight:650;margin-bottom:16px;
}
.eyebrow .num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:30px;height:22px;padding:0 7px;
  background:var(--muted);border:1px solid var(--line);
  border-radius:6px;color:var(--text-2);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
h2.sec-title{font-size:clamp(24px,3.1vw,38px);line-height:1.18;max-width:18em}
.sec-note{font-size:14.5px;color:var(--text-2);max-width:26em;line-height:1.8}

/* 说明板块 */
.split{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:56px;align-items:start;
}
.lead{font-size:17px;line-height:1.85;color:var(--text-2)}
.lead strong{color:var(--text);font-weight:650}
.point-list{margin-top:28px}
.point{
  display:grid;grid-template-columns:44px 1fr;gap:14px;
  padding:18px 0;border-top:1px solid var(--line);
}
.point:last-child{border-bottom:1px solid var(--line)}
.point .idx{
  font-size:13px;font-weight:700;color:var(--moss);
  font-variant-numeric:tabular-nums;padding-top:3px;letter-spacing:.06em;
}
.point h3{font-size:16.5px;margin-bottom:4px}
.point p{font-size:14px;color:var(--text-2);line-height:1.75}
.figure{
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;background:var(--card);box-shadow:var(--shadow-card);
  margin-top:26px;
}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure figcaption{
  font-size:13px;color:var(--text-3);
  padding:12px 16px;border-top:1px solid var(--line);background:var(--card);
}

/* ============ 对比卡 ============ */
.compare{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.compare-head{
  display:grid;grid-template-columns:1.15fr 1fr 1fr;
  background:var(--muted);
  border-bottom:1px solid var(--line);
}
.compare-head > div{
  padding:15px 20px;
  font-size:12px;letter-spacing:.1em;color:var(--text-2);font-weight:650;
  display:flex;align-items:center;gap:8px;
}
.compare-head .h-on{color:var(--moss)}
.compare-head .h-off{color:var(--text-3)}
.compare-head i{font-size:11px}
.compare-row{
  display:grid;grid-template-columns:1.15fr 1fr 1fr;
  border-top:1px solid var(--line);
  transition:background .2s var(--ease);
}
.compare-row:first-of-type{border-top:0}
.compare-row:hover{background:rgba(20,22,26,.015)}
.cell{padding:18px 20px;font-size:14.5px;line-height:1.7;display:flex;gap:9px;align-items:flex-start}
.cell-key{font-weight:650;color:var(--text)}
.cell-on{color:var(--text);border-left:1px solid var(--line)}
.cell-off{color:var(--text-3);border-left:1px solid var(--line)}
.cell-on i{color:var(--moss);font-size:12px;margin-top:6px}
.cell-off i{color:var(--text-3);font-size:12px;margin-top:6px}
.compare-foot{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;
  align-items:center;
  padding:18px 20px;border-top:1px solid var(--line);
  background:var(--muted);font-size:13.5px;color:var(--text-2);
}

/* ============ 能力编号列表 ============ */
.num-list{border-top:1px solid var(--line)}
.num-item{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;
  align-items:center;padding:24px 4px;
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),padding-left .2s var(--ease);
}
.num-item:hover{background:rgba(20,22,26,.02);padding-left:12px}
.num-item .big{
  font-size:26px;font-weight:750;color:var(--moss);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.num-item h3{font-size:17.5px;margin-bottom:4px}
.num-item p{font-size:14px;color:var(--text-2);line-height:1.7;max-width:34em}
.num-item .go{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);font-size:13px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.num-item:hover .go{border-color:var(--accent);color:var(--accent);transform:translateX(3px)}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-card);
  padding:24px 22px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  position:relative;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(217,74,38,.35)}
.step .sn{
  font-size:34px;font-weight:750;color:var(--moss);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;line-height:1;
  display:block;margin-bottom:14px;
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.step::before{
  content:"";position:absolute;left:22px;right:22px;top:0;height:2px;
  background:var(--accent);border-radius:2px;opacity:0;
  transition:opacity .2s var(--ease);
}
.step:hover::before{opacity:1}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-card);
  padding:8px 28px;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:22px 0;text-align:left;
  font-size:16.5px;font-weight:650;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-q .fnum{
  font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;
  letter-spacing:.08em;flex:0 0 auto;padding-top:3px;
}
.faq-q .ftext{flex:1 1 auto}
.faq-q i{
  color:var(--text-3);font-size:13px;flex:0 0 auto;
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{
  font-size:14.5px;color:var(--text-2);line-height:1.85;
  padding:0 0 24px 40px;
  border-top:0;
}
.faq-item.is-open .faq-q{padding-bottom:14px}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);color:var(--paper);
  border-radius:var(--r-md);
  padding:52px 48px;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 64px);
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;align-items:center;
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);line-height:1.22;margin-bottom:14px}
.cta-band p{font-size:14.5px;color:rgba(244,241,235,.64);line-height:1.8;max-width:32em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-fine{
  grid-column:1 / -1;
  font-size:12.5px;color:rgba(244,241,235,.46);
  padding-top:26px;margin-top:6px;
  border-top:1px solid rgba(244,241,235,.16);
}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:var(--paper);margin-top:88px;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand .brand-name{color:var(--paper)}
.foot-brand .brand-mark{background:var(--paper);color:var(--ink)}
.foot-desc{font-size:13.5px;line-height:1.85;color:rgba(244,241,235,.62);margin-top:16px;max-width:26em}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:rgba(244,241,235,.5);font-weight:650;margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{
  font-size:14px;color:rgba(244,241,235,.78);
  transition:color .2s var(--ease);
}
.foot-col ul a:hover{color:var(--accent)}
.foot-col p{font-size:13.5px;line-height:1.85;color:rgba(244,241,235,.6)}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(244,241,235,.16);
  font-size:12.5px;color:rgba(244,241,235,.46);
  font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .split{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{padding:52px 36px 44px}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .page-hero{padding:40px 22px 36px;margin-top:16px}
  .hero-meta{gap:8px 16px;font-size:12.5px}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr 1fr}
  .cell-key{grid-column:1 / -1;background:var(--muted);font-size:13.5px;padding:12px 16px}
  .cell{padding:14px 16px;font-size:13.5px}
  .cell-on{border-left:0}
  .cell-on::before{content:"已开启 · ";color:var(--moss);font-weight:650}
  .cell-off::before{content:"未设置 · ";color:var(--text-3);font-weight:650}
  .num-item{grid-template-columns:44px 1fr;gap:14px}
  .num-item .go{display:none}
  .num-item .big{font-size:22px}
  .faq-wrap{padding:6px 18px}
  .faq-q{font-size:15.5px;gap:12px;padding:18px 0}
  .faq-a p{padding-left:0}
  .cta-band{padding:32px 22px}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .site-foot{margin-top:64px;padding:48px 0 24px}
  .section{padding:56px 0}
}
@media (max-width:520px){
  .brand-name{font-size:14.5px}
  .steps{grid-template-columns:1fr}
  .btn{height:50px;padding:0 20px;font-size:14.5px}
  .btn-sm{height:36px;padding:0 14px;font-size:13px}
  .drawer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category5 */
:root{
  --ink:#16181B;
  --ink-soft:#24262A;
  --accent:#D94A26;
  --moss:#2E5E4E;
  --paper:#F4F1EB;
  --card:#FFFFFF;
  --surface:#EDE9E1;
  --text:#1B1D21;
  --text-2:#565A61;
  --text-3:#8A8F96;
  --line:rgba(20,22,26,.10);
  --line-strong:rgba(20,22,26,.18);
  --on-dark:rgba(244,241,235,.62);
  --r-lg:14px;
  --r-sm:10px;
  --shadow:0 1px 2px rgba(20,22,26,.05),0 24px 48px -32px rgba(20,22,26,.18);
  --shadow-hover:0 2px 4px rgba(20,22,26,.06),0 32px 60px -30px rgba(20,22,26,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--paper);
  color:var(--text);
  font-size:17px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--accent);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
strong{font-weight:700;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:80;background:var(--paper);padding-top:16px;}
.nav-card{
  display:flex;align-items:center;gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:10px 12px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--paper);
  display:grid;place-items:center;font-size:16px;
  transition:background 220ms var(--ease);
}
.brand:hover .brand-mark{background:var(--accent);}
.brand-name{font-size:16px;font-weight:750;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;flex-wrap:wrap;}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-2);
  transition:background 200ms var(--ease),color 200ms var(--ease);
  white-space:nowrap;
}
.nav-item i{font-size:13px;opacity:.8;}
.nav-item::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform 220ms var(--ease);
}
.nav-item:hover{background:var(--surface);color:var(--text);}
.nav-item:hover::after{transform:scaleX(1);}
.nav-item.is-active{background:var(--ink);color:var(--paper);}
.nav-item.is-active::after{transform:scaleX(0);}
.nav-right{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--text);
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.nav-toggle:hover{background:var(--surface);border-color:var(--line-strong);}
.nav-drawer{display:none;}
.nav-drawer.is-open{display:block;animation:drawerIn 240ms var(--ease);}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:12px;}
.drawer-item{
  display:flex;align-items:center;gap:8px;min-height:44px;padding:0 12px;
  border-radius:var(--r-sm);background:var(--paper);
  font-size:14px;color:var(--text-2);
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.drawer-item i{font-size:13px;color:var(--accent);}
.drawer-item:hover{background:var(--surface);color:var(--text);}
.drawer-item.is-active{background:var(--ink);color:var(--paper);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:52px;padding:0 26px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background 220ms var(--ease),border-color 220ms var(--ease),color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.btn .arrow{transition:transform 220ms var(--ease);font-size:14px;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--accent);background:rgba(22,24,27,.04);color:var(--text);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:var(--ink);
  position:relative;padding-bottom:3px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  transition:transform 220ms var(--ease);
}
.text-link:hover{color:var(--accent);}
.text-link:hover::after{transform:scaleX(1);}

/* ---------- breadcrumb ---------- */
.crumb{padding-top:26px;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb a{color:var(--text-3);transition:color 200ms var(--ease);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:rgba(20,22,26,.24);font-size:11px;}
.crumb .now{color:var(--text-2);}

/* ---------- hero ---------- */
.cat-hero{padding-top:44px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;letter-spacing:.16em;color:var(--text-3);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
h1{
  font-size:clamp(34px,4.4vw,58px);
  line-height:1.08;
  font-weight:750;
  letter-spacing:-.02em;
  margin-top:18px;
  color:var(--ink);
}
.hero-lead{margin-top:22px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:560px;}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);background:var(--surface);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(22,24,27,.04),rgba(22,24,27,.16));
}
.figure-badge{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.95);
  border:1px solid rgba(20,22,26,.08);
  border-radius:var(--r-sm);
  padding:9px 14px;font-size:13px;color:var(--text-2);
}
.figure-badge i{color:var(--moss);}
.figure-badge b{color:var(--ink);font-weight:700;}

/* ---------- stats ---------- */
.stats{
  margin-top:56px;
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{padding:24px 0;display:flex;flex-direction:column;gap:4px;}
.stat + .stat{padding-left:28px;border-left:1px solid var(--line);}
.stat-num{font-size:26px;font-weight:750;color:var(--moss);letter-spacing:-.01em;line-height:1.2;}
.stat-label{font-size:13px;color:var(--text-3);letter-spacing:.02em;}

/* ---------- section head ---------- */
.block{padding-top:96px;}
.sec-head{
  display:flex;align-items:flex-start;gap:18px;
  border-top:1px solid var(--line);padding-top:24px;
}
.sec-index{
  flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--paper);
  display:grid;place-items:center;
  font-size:13px;font-weight:700;letter-spacing:.06em;
}
.sec-title h2{font-size:clamp(24px,3vw,38px);line-height:1.15;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
.sec-title p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px;}
.sec-head .sec-side{margin-left:auto;flex:0 0 auto;}

/* ---------- split / steps ---------- */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:64px;margin-top:44px;align-items:start;}
.split-note h3{font-size:22px;line-height:1.35;font-weight:700;color:var(--ink);margin-bottom:14px;}
.split-note p{font-size:15.5px;color:var(--text-2);line-height:1.85;}
.split-note .text-link{margin-top:22px;}
.steps li{
  display:grid;grid-template-columns:70px 1fr;gap:20px;
  padding:24px 0;border-top:1px solid var(--line);
}
.steps li:last-child{border-bottom:1px solid var(--line);}
.step-no{font-size:15px;font-weight:700;color:var(--moss);letter-spacing:.08em;padding-top:2px;}
.steps h3{font-size:19px;line-height:1.35;font-weight:700;color:var(--ink);margin-bottom:6px;}
.steps p{font-size:15px;color:var(--text-2);line-height:1.8;}

/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:296px 1fr;gap:40px;margin-top:44px;align-items:start;}
.anchor-card{
  position:sticky;top:104px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:14px;display:grid;gap:6px;
}
.anchor-title{font-size:12px;letter-spacing:.14em;color:var(--text-3);padding:6px 12px 10px;}
.anchor-item{
  display:flex;align-items:center;gap:10px;
  min-height:42px;padding:0 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-2);
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.anchor-item .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto;transition:transform 200ms var(--ease);}
.anchor-item:hover{background:var(--surface);color:var(--text);}
.anchor-item:hover .dot{transform:scale(1.5);}
.anchor-note{
  margin-top:6px;padding:12px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.75;color:var(--text-3);
}

.faq-group{scroll-margin-top:120px;}
.faq-group + .faq-group{margin-top:40px;}
.faq-group-head{display:flex;align-items:baseline;gap:12px;margin-bottom:14px;}
.faq-group-head h3{font-size:20px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.faq-group-head span{font-size:12px;letter-spacing:.1em;color:var(--text-3);}
.faq-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:20px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;
  transition:background 200ms var(--ease);
}
.faq-q:hover{background:rgba(237,233,225,.55);}
.faq-q .faq-no{flex:0 0 auto;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--accent);}
.faq-q .faq-text{flex:1 1 auto;}
.faq-arrow{flex:0 0 auto;font-size:13px;color:var(--text-3);transition:transform 220ms var(--ease),color 220ms var(--ease);}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--accent);}
.faq-a{display:none;padding:18px 22px 22px 58px;border-top:1px solid var(--line);}
.faq-item.is-open .faq-a{display:block;}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--text-2);}
.faq-a p + p{margin-top:10px;}
.faq-a strong{color:var(--ink);}

/* ---------- support card ---------- */
.support-card{
  margin-top:72px;
  display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:32px;
}
.support-card h3{font-size:22px;font-weight:700;color:var(--ink);line-height:1.35;}
.support-card p{margin-top:10px;font-size:15.5px;color:var(--text-2);line-height:1.8;max-width:720px;}
.support-card .btn{flex:0 0 auto;}

/* ---------- download ---------- */
.dl-wrap{padding-top:96px;}
.dl-card{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--paper);
  border-radius:var(--r-lg);
  padding:64px 56px;
}
.dl-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(244,241,235,.08) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(244,241,235,.08) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
}
.dl-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.dl-card h2{font-size:clamp(24px,3vw,36px);line-height:1.18;font-weight:700;letter-spacing:-.01em;color:#F4F1EB;}
.dl-card .dl-lead{margin-top:16px;font-size:15.5px;line-height:1.8;color:var(--on-dark);max-width:460px;}
.dl-btns{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;border-radius:var(--r-lg);
  border:1px solid rgba(244,241,235,.16);
  background:rgba(255,255,255,.04);
  color:#F4F1EB;
  transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.dl-btn:hover{background:var(--ink-soft);border-color:rgba(244,241,235,.3);color:#F4F1EB;}
.dl-btn i.ico{font-size:20px;color:var(--accent);}
.dl-btn .dl-meta{display:flex;flex-direction:column;line-height:1.35;}
.dl-btn .dl-meta strong{font-size:15px;font-weight:700;}
.dl-btn .dl-meta span{font-size:12.5px;color:var(--on-dark);margin-top:3px;}
.dl-btn .arrow{margin-left:auto;font-size:13px;color:var(--on-dark);transition:transform 220ms var(--ease);}
.dl-btn:hover .arrow{transform:translateX(4px);color:#F4F1EB;}
.dl-foot{
  position:relative;z-index:1;margin-top:28px;padding-top:18px;
  border-top:1px solid rgba(244,241,235,.14);
  font-size:12.5px;color:var(--on-dark);display:flex;flex-wrap:wrap;gap:16px;align-items:center;
}

/* ---------- footer ---------- */
.site-foot{background:var(--ink);color:var(--on-dark);margin-top:96px;padding:72px 0 28px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .brand-name{color:#F4F1EB;}
.foot-brand .brand-mark{background:#F4F1EB;color:var(--ink);}
.foot-brand .brand:hover .brand-mark{background:var(--accent);color:#fff;}
.foot-desc{margin-top:16px;font-size:14px;line-height:1.8;color:var(--on-dark);max-width:320px;}
.foot-col h4{font-size:14px;font-weight:700;color:#F4F1EB;letter-spacing:.02em;margin-bottom:16px;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14px;color:var(--on-dark);transition:color 200ms var(--ease);}
.foot-col a:hover{color:#F4F1EB;}
.foot-col p{font-size:13.5px;line-height:1.85;color:var(--on-dark);}
.foot-bottom{
  margin-top:56px;padding-top:20px;
  border-top:1px solid rgba(244,241,235,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:rgba(244,241,235,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-item{padding:0 9px;font-size:13.5px;}
  .nav-item::after{left:9px;right:9px;}
}
@media (max-width:1080px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .split{gap:44px;}
}
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{order:2;}
  .split{grid-template-columns:1fr;gap:30px;}
  .faq-layout{grid-template-columns:1fr;gap:26px;}
  .anchor-card{position:static;grid-template-columns:1fr 1fr;display:grid;gap:6px;}
  .anchor-title{grid-column:1 / -1;}
  .anchor-note{grid-column:1 / -1;}
  .dl-grid{grid-template-columns:1fr;gap:30px;}
  .dl-card{padding:48px 36px;}
  .support-card{grid-template-columns:1fr;gap:20px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .block{padding-top:76px;}
  .dl-wrap{padding-top:76px;}
}
@media (max-width:640px){
  body{font-size:16px;line-height:1.78;}
  .container{padding:0 20px;}
  .brand-name{font-size:14.5px;}
  .nav-card{padding:8px 10px;gap:10px;}
  .hero-actions .btn{width:100%;}
  .stats{grid-template-columns:1fr;}
  .stat + .stat{padding-left:0;border-left:0;border-top:1px solid var(--line);}
  .stat{padding:16px 0;}
  .sec-head{gap:14px;}
  .sec-index{width:38px;height:38px;font-size:12px;}
  .steps li{grid-template-columns:44px 1fr;gap:14px;padding:20px 0;}
  .faq-q{padding:16px;font-size:15px;gap:10px;}
  .faq-a{padding:16px 16px 18px;}
  .faq-group-head h3{font-size:18px;}
  .support-card{padding:22px;}
  .dl-card{padding:36px 22px;}
  .dl-btns{grid-template-columns:1fr;}
  .dl-btn{min-height:56px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .site-foot{margin-top:64px;padding:56px 0 24px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .anchor-card{grid-template-columns:1fr;}
  h1{font-size:clamp(28px,8vw,36px);}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none !important;animation:none !important;}
}