/* roulang page: index */
:root{
  --brand-900:#08211B;
  --brand-700:#0E332A;
  --brand-500:#1A5C4A;
  --accent-400:#C7F24A;
  --accent-300:#D8FF62;
  --clay-500:#E2623C;
  --sand-50:#F6F4EF;
  --card:#FFFFFF;
  --ink-900:#101613;
  --ink-600:#4A554F;
  --ink-400:#7C877F;
  --line-200:#E1E4DC;
  --line-100:#EEF0E9;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-box:18px;
  --r-tag:6px;
  --sh-weak:0 1px 2px rgba(11,26,22,.06);
  --sh-card:0 8px 24px -12px rgba(11,26,22,.18);
  --sh-float:0 18px 40px -20px rgba(8,33,27,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
body.has-dock{padding-bottom:72px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:4px}
.dark-panel :focus-visible,.site-footer :focus-visible{outline-color:var(--accent-400)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:26px;font-weight:700;letter-spacing:-.005em}
.section-head .section-sub{font-size:14px;color:var(--ink-600);margin-top:8px;max-width:620px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand-500);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-400);border-radius:2px}
.divider-runway{height:1px;background:repeating-linear-gradient(90deg,var(--line-200) 0 14px,transparent 14px 28px)}
.num-badge{font-variant-numeric:tabular-nums;font-weight:800;font-size:32px;color:var(--brand-500);line-height:1}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-200);transition:box-shadow .22s ease-out}
.site-header.is-stuck{box-shadow:var(--sh-weak)}
.nav-top{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{position:relative;width:30px;height:30px;border-radius:9px;background:var(--brand-900);display:flex;align-items:center;justify-content:center;overflow:hidden}
.brand-mark i{position:absolute;left:-4px;width:38px;height:4px;background:var(--accent-400);border-radius:4px;transform:rotate(-24deg)}
.brand-mark i:nth-child(2){top:12px;opacity:.55}
.brand-mark i:nth-child(3){top:19px;opacity:.28}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-main a{padding:8px 12px;border-radius:9px;font-size:14.5px;color:var(--ink-600);transition:background .2s ease-out,color .2s ease-out}
.nav-main a:hover{background:rgba(14,51,42,.07);color:var(--brand-700)}
.nav-main a.is-active{color:var(--brand-700);font-weight:600}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative}
.nav-search input{width:220px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line-200);background:#fff;padding:0 14px 0 38px;font-size:14px;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px var(--accent-400)}
.nav-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--ink-400);fill:none;stroke-width:2}
.search-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line-200);border-radius:var(--r-btn);background:#fff}
.search-toggle svg{width:18px;height:18px;stroke:var(--brand-700);fill:none;stroke-width:2}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .2s ease-out,background .2s ease-out,box-shadow .2s ease-out,color .2s ease-out}
.btn-primary{background:var(--accent-400);color:var(--brand-900)}
.btn-primary:hover{background:var(--accent-300);transform:translateY(-1px);box-shadow:var(--sh-card)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-ghost:hover{background:rgba(14,51,42,.08)}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--accent-300);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}
.text-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-700)}
.text-arrow span{transition:transform .2s ease-out}
.text-arrow:hover span{transform:translateX(2px)}
.text-arrow:hover{border-bottom:2px solid var(--accent-400)}

.nav-channels-wrap{border-top:1px solid var(--line-100)}
.nav-channels{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-padding-left:32px}
.nav-channels::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;font-size:13.5px;color:var(--ink-600);transition:background .2s ease-out,color .2s ease-out}
.chip:hover{background:rgba(14,51,42,.1)}
.chip.is-active{background:var(--accent-400);color:var(--brand-900);font-weight:600}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--brand-900);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.34}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,33,27,.92) 0%,rgba(8,33,27,.72) 52%,rgba(8,33,27,.58) 100%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding:88px 0}
.hero-badge{display:inline-flex;align-items:center;gap:10px;height:34px;padding:0 14px;border-radius:999px;background:rgba(199,242,74,.14);color:var(--accent-300);font-size:13px;font-weight:600}
.hero h1{font-size:38px;font-weight:800;letter-spacing:-.01em;line-height:1.2;margin:20px 0 16px}
.hero-sub{font-size:17px;color:rgba(255,255,255,.78);max-width:560px;line-height:1.75}
.hero-actions{display:flex;gap:14px;margin:28px 0 32px;flex-wrap:wrap}
.hero .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}
.hero .btn-ghost:hover{background:rgba(255,255,255,.14)}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.16);padding-top:22px}
.hero-stat .val{font-variant-numeric:tabular-nums;font-size:24px;font-weight:800;color:var(--accent-300);line-height:1.2}
.hero-stat .lbl{font-size:13px;color:rgba(255,255,255,.6);margin-top:4px}
.hero-visual{position:relative}
.hero-shot{position:relative;border-radius:var(--r-box);overflow:hidden;box-shadow:var(--sh-float);border:1px solid rgba(255,255,255,.14)}
.hero-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{position:absolute;right:-14px;bottom:-18px;background:#fff;color:var(--ink-900);border-radius:var(--r-card);padding:14px 18px;box-shadow:var(--sh-float);min-width:190px}
.hero-float .t{font-size:13px;color:var(--ink-400)}
.hero-float .v{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-700)}

/* ---------- 功能亮点 ---------- */
.feature-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.feature-media{border-radius:var(--r-box);overflow:hidden;border:1px solid var(--line-200);box-shadow:var(--sh-card);background:#fff}
.feature-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.feature-list{display:flex;flex-direction:column}
.feature-item{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line-100)}
.feature-item:first-child{padding-top:0}
.feature-item:last-child{border-bottom:none;padding-bottom:0}
.feature-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.feature-item p{font-size:14.5px;color:var(--ink-600);margin:0}

/* ---------- 截图轮播 ---------- */
.rail-wrap{position:relative}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 0 18px;scrollbar-width:none;-ms-overflow-style:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{flex:0 0 280px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line-200);border-radius:var(--r-card);padding:12px;box-shadow:var(--sh-weak);transition:transform .22s ease-out,box-shadow .22s ease-out}
.rail-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card)}
.rail-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img)}
.rail-card h3{font-size:15.5px;font-weight:600;margin:12px 0 4px}
.rail-card p{font-size:13.5px;color:var(--ink-600);margin:0}
.rail-nav{display:flex;gap:10px}
.rail-btn{width:44px;height:44px;border-radius:999px;background:#fff;border:1.5px solid var(--brand-700);color:var(--brand-700);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out}
.rail-btn:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-1px)}
.rail-dots{display:none;justify-content:center;gap:6px;margin-top:6px}
.rail-dots i{width:6px;height:6px;border-radius:50%;background:var(--line-200)}
.rail-dots i.on{background:var(--brand-500)}
.rail-fade{position:absolute;right:0;top:0;bottom:18px;width:60px;background:linear-gradient(90deg,transparent,rgba(246,244,239,.95));pointer-events:none}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.spec-card{background:var(--card);border:1px solid var(--line-200);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-weak)}
.spec-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.spec-icon{width:38px;height:38px;border-radius:10px;background:rgba(26,92,74,.1);display:flex;align-items:center;justify-content:center;color:var(--brand-700);font-weight:800;font-size:13px;font-variant-numeric:tabular-nums}
.spec-head h3{font-size:17px;font-weight:600}
.spec-card dl{margin:0}
.spec-card dt{font-size:13px;color:var(--ink-400);margin-bottom:2px}
.spec-card dd{margin:0 0 14px;font-size:14.5px;color:var(--ink-600);font-variant-numeric:tabular-nums}
.spec-card dd:last-child{margin-bottom:0}

/* ---------- 评价墙 ---------- */
.review-section{background:#F1EFE8}
.review-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.review-card{background:#fff;border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-weak);margin-bottom:20px}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-500);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex-shrink:0}
.review-top .who{font-size:14.5px;font-weight:600}
.review-top .stars{margin-left:auto;color:var(--accent-400);font-size:13px;letter-spacing:2px}
.stars .off{color:var(--line-200)}
.review-card p{font-size:14.5px;color:var(--ink-600);margin:0 0 12px}
.review-date{font-size:13px;color:var(--ink-400)}

/* ---------- 深色下载区 ---------- */
.dark-panel{background:var(--brand-900);color:#fff;border-radius:var(--r-box);padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.dark-panel h2{font-size:26px;font-weight:700;margin-bottom:14px}
.dark-panel p{color:rgba(255,255,255,.74);font-size:15px}
.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.dl-grid .btn{justify-content:flex-start;padding-left:20px}
.dark-links{grid-column:2;display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.66);margin-top:6px}
.dark-links a:hover{color:var(--accent-300);text-decoration:underline}

/* ---------- 资讯列表 ---------- */
.news-feature{background:#fff;border:1px solid var(--line-200);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-weak);transition:transform .22s ease-out,box-shadow .22s ease-out}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-card)}
.news-feature-link{display:grid;grid-template-columns:.9fr 1.1fr;gap:0}
.news-feature-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.news-feature-body{padding:26px 28px;display:flex;flex-direction:column}
.news-feature-body h3{font-size:21px;font-weight:700;margin:12px 0 10px}
.news-feature-body p{font-size:14.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:16px;font-size:13px;color:var(--ink-400)}
.tag-clay{display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:var(--r-tag);font-size:12px;font-weight:600;background:rgba(226,98,60,.12);color:var(--clay-500)}
.tag-brand{display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:var(--r-tag);font-size:12px;font-weight:600;background:rgba(26,92,74,.1);color:var(--brand-700)}
.news-rows{margin-top:10px}
.news-row{display:flex;align-items:center;gap:20px;padding:18px 6px;border-bottom:1px solid var(--line-100);transition:background .2s ease-out}
.news-row:hover{background:rgba(255,255,255,.85)}
.news-row:last-child{border-bottom:none}
.news-row .main{flex:1;min-width:0}
.news-row h3{font-size:16px;font-weight:600;margin-bottom:2px}
.news-row p{font-size:13.5px;color:var(--ink-600);margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-row .side{display:flex;align-items:center;gap:14px;flex-shrink:0;font-size:13px;color:var(--ink-400)}
.empty-state{border:1px dashed var(--line-200);border-radius:var(--r-card);padding:44px 24px;text-align:center;background:#fff}
.empty-state .ph{width:96px;height:96px;border-radius:var(--r-img);border:1px solid var(--line-200);margin:0 auto 16px;display:flex;align-items:center;justify-content:center;color:var(--ink-400);font-size:13px;background:var(--sand-50)}
.empty-state p{font-size:15px;color:var(--ink-600);margin-bottom:16px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line-100);background:transparent;transition:background .2s ease-out}
.faq-item[open]{background:rgba(255,255,255,.7);box-shadow:inset 3px 0 0 var(--accent-400)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;padding:20px 22px;font-size:16px;font-weight:600}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";margin-left:auto;font-size:20px;font-weight:600;color:var(--brand-500);line-height:1;transition:transform .22s ease-out}
.faq-item[open] summary::after{content:"−"}
.faq-item .ans{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--ink-600)}

/* ---------- 支持条 ---------- */
.support-strip{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;background:#fff;border:1px solid var(--line-200);border-radius:var(--r-box);padding:30px 34px;box-shadow:var(--sh-weak)}
.support-strip h2{font-size:21px;font-weight:700;margin-bottom:6px}
.support-strip p{font-size:14.5px;color:var(--ink-600);margin:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);padding:64px 0 26px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:300px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;line-height:2;color:rgba(255,255,255,.72);transition:color .2s ease-out}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;font-size:13px;color:rgba(255,255,255,.56)}
.footer-bottom a{color:rgba(255,255,255,.66)}
.footer-bottom a:hover{color:var(--accent-400)}

/* ---------- 移动吸底 ---------- */
.dock{position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;background:#fff;border-top:1px solid var(--line-200);box-shadow:var(--sh-float);display:flex;align-items:center;gap:14px;padding:0 20px;transform:translateY(110%);transition:transform .26s ease-out}
.dock.is-on{transform:translateY(0)}
.dock .ver{font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums}
.dock .btn{margin-left:auto}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0}
  .hero h1{font-size:30px}
  .feature-grid{grid-template-columns:1fr;gap:36px}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .dark-panel{grid-template-columns:1fr;padding:40px}
  .dark-links{grid-column:1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-search input{width:160px}
}
@media (max-width:768px){
  .nav-main{display:none}
  .nav-search{display:none}
  .search-toggle{display:inline-flex}
  .review-cols{grid-template-columns:1fr}
  .news-feature-link{grid-template-columns:1fr}
  .news-row .side .row-cat{display:none}
  .support-strip{grid-template-columns:1fr}
  .rail-fade{display:none}
  .rail-dots{display:flex}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .hero h1{font-size:27px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:22px}
  .hero-float{position:static;margin-top:14px;box-shadow:var(--sh-weak)}
  .spec-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .rail-card{flex:0 0 240px}
  .news-feature-body{padding:20px}
  .news-row{flex-direction:column;align-items:flex-start;gap:8px}
  .news-row p{white-space:normal}
  .dark-panel{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
    --brand-900:#08211B;
    --brand-700:#0E332A;
    --brand-500:#1A5C4A;
    --accent-400:#C7F24A;
    --accent-300:#D8FF62;
    --clay-500:#E2623C;
    --sand-50:#F6F4EF;
    --card:#FFFFFF;
    --ink-900:#101613;
    --ink-600:#4A554F;
    --ink-400:#7C877F;
    --line-200:#E1E4DC;
    --line-100:#EEF0E9;
    --r-card:14px;
    --r-btn:10px;
    --r-img:12px;
    --r-lg:18px;
    --sd-1:0 1px 2px rgba(11,26,22,.06);
    --sd-2:0 8px 24px -12px rgba(11,26,22,.18);
    --sd-3:0 18px 40px -20px rgba(8,33,27,.28);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    font-size:16px;line-height:1.8;color:var(--ink-900);background:var(--sand-50);
    text-align:left;-webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding-left:1.4em}
  :focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:4px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  .mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace}

  /* ============ 导航 ============ */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-200);box-shadow:var(--sd-1);transition:box-shadow .22s ease-out}
  .nav-top{display:flex;align-items:center;gap:20px;height:64px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{width:32px;height:32px;border-radius:10px;background:var(--brand-700);display:inline-flex;align-items:flex-end;justify-content:center;gap:3px;padding-bottom:8px}
  .brand-mark i{display:block;width:3px;border-radius:2px;background:var(--accent-400)}
  .brand-mark i:nth-child(1){height:8px;opacity:.7}
  .brand-mark i:nth-child(2){height:13px;opacity:.85}
  .brand-mark i:nth-child(3){height:18px}
  .brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--brand-900);white-space:nowrap}
  .nav-main{display:flex;align-items:center;gap:4px;margin:0 auto}
  .nav-main a{padding:8px 13px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-600);transition:background .18s ease-out,color .18s ease-out;white-space:nowrap}
  .nav-main a:hover{background:rgba(14,51,42,.09);color:var(--brand-700)}
  .nav-main a.is-active{color:var(--brand-700);font-weight:700}
  .nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
  .nav-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;background:#fff;border:1px solid var(--line-200);border-radius:var(--r-btn);transition:border-color .18s ease-out,box-shadow .18s ease-out}
  .nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 2px var(--accent-400)}
  .nav-search svg{width:18px;height:18px;flex:0 0 auto;fill:none;stroke:var(--ink-400);stroke-width:2;stroke-linecap:round}
  .nav-search input{width:180px;border:0;outline:0;background:transparent;font-size:14px}
  .nav-search input::placeholder{color:var(--ink-400)}
  .search-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line-200);border-radius:var(--r-btn);cursor:pointer;transition:background .18s ease-out}
  .search-toggle:hover{background:rgba(14,51,42,.06)}
  .search-toggle svg{width:20px;height:20px;fill:none;stroke:var(--brand-700);stroke-width:2;stroke-linecap:round}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s ease-out,background .2s ease-out,box-shadow .2s ease-out,color .2s ease-out;white-space:nowrap}
  .btn-primary{background:var(--accent-400);color:var(--brand-900);box-shadow:var(--sd-1)}
  .btn-primary:hover{background:var(--accent-300);transform:translateY(-1px);box-shadow:var(--sd-2)}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96)}
  .btn-outline{background:transparent;border:1.5px solid var(--brand-700);color:var(--brand-700)}
  .btn-outline:hover{background:rgba(14,51,42,.08);transform:translateY(-1px)}
  .btn-light{background:#fff;color:var(--brand-900)}
  .btn-light:hover{background:var(--accent-300);transform:translateY(-1px);box-shadow:var(--sd-2)}
  .btn-sm{padding:9px 16px;font-size:14px}
  .btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);border-bottom:2px solid transparent;padding-bottom:2px;transition:border-color .2s ease-out}
  .btn-text:hover{border-bottom-color:var(--accent-400)}
  .btn-text .arrow{display:inline-block;transition:transform .2s ease-out}
  .btn-text:hover .arrow{transform:translateX(2px)}

  .nav-channels-wrap{border-top:1px solid var(--line-100);background:rgba(246,244,239,.94)}
  .nav-channels{display:flex;gap:8px;overflow-x:auto;padding:8px 0;scrollbar-width:none;-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity}
  .nav-channels::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;font-size:14px;color:var(--ink-600);transition:background .18s ease-out,color .18s ease-out;scroll-snap-align:start}
  .chip:hover{background:rgba(14,51,42,.1);color:var(--brand-700)}
  .chip.is-active{background:var(--accent-400);color:var(--brand-900);font-weight:600}

  /* ============ 文章头部 ============ */
  .article-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FBFAF6 0%,var(--sand-50) 100%);border-bottom:1px solid var(--line-200);padding:28px 0 36px}
  .article-hero::after{content:"";position:absolute;right:-70px;top:-60px;width:240px;height:240px;border-radius:50%;background:repeating-linear-gradient(135deg,rgba(26,92,74,.1) 0 6px,transparent 6px 17px);pointer-events:none}
  .breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--ink-400);margin-bottom:18px}
  .breadcrumb a{transition:color .18s ease-out}
  .breadcrumb a:hover{color:var(--brand-700)}
  .breadcrumb .sep{color:var(--line-200)}
  .breadcrumb .current{color:var(--ink-900);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .badge{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:6px;background:rgba(226,98,60,.13);color:var(--clay-500);font-size:12px;font-weight:600;margin-bottom:14px}
  .article-title{font-size:clamp(26px,4vw,36px);line-height:1.25;font-weight:800;letter-spacing:-.01em;max-width:900px;color:var(--brand-900)}
  .article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px;padding-top:18px;border-top:1px solid var(--line-200);font-size:13px;color:var(--ink-400)}
  .article-meta span{display:inline-flex;align-items:center;gap:6px}
  .article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-200)}

  /* ============ 正文 ============ */
  .article-section{padding:8px 0 0}
  .article-reading{max-width:740px;margin:0 auto;padding:44px 0 12px}
  .article-content{font-size:17px;line-height:1.9;color:var(--ink-900);word-wrap:break-word;overflow-wrap:break-word}
  .article-content p{margin:0 0 1.1em}
  .article-content h2{font-size:26px;line-height:1.3;font-weight:700;margin:40px 0 16px;color:var(--brand-900)}
  .article-content h3{font-size:20px;line-height:1.4;font-weight:600;margin:32px 0 12px;color:var(--brand-900)}
  .article-content h4{font-size:17px;line-height:1.4;font-weight:600;margin:24px 0 10px}
  .article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.5em}
  .article-content li{margin-bottom:8px;line-height:1.9}
  .article-content blockquote{margin:26px 0;padding:20px 22px;background:var(--sand-50);border-left:3px solid var(--accent-400);border-radius:2px 12px 12px 2px;color:var(--ink-600);font-size:16px}
  .article-content blockquote p:last-child{margin-bottom:0}
  .article-content img{border-radius:var(--r-img);margin:26px auto;height:auto}
  .article-content figure{margin:26px 0}
  .article-content figcaption{font-size:13px;line-height:1.6;color:var(--ink-400);text-align:center;margin-top:10px}
  .article-content a{color:var(--brand-700);border-bottom:1px solid rgba(26,92,74,.35);transition:border-color .18s ease-out,color .18s ease-out}
  .article-content a:hover{color:var(--brand-500);border-bottom-color:var(--accent-400)}
  .article-content strong{font-weight:700}
  .article-content table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border:1px solid var(--line-200);border-radius:var(--r-img);overflow:hidden}
  .article-content th{background:var(--line-100);font-weight:600;text-align:left;color:var(--brand-900)}
  .article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line-100)}
  .article-content tr:last-child td{border-bottom:0}
  .article-content tbody tr:nth-child(even) td{background:#FAFAF7}
  .article-content code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:15px;background:var(--line-100);padding:2px 6px;border-radius:6px}
  .article-content pre{background:var(--brand-900);color:#DCE7E2;padding:20px 22px;border-radius:var(--r-img);overflow-x:auto;font-size:14px;line-height:1.7;margin:26px 0}
  .article-content pre code{background:transparent;padding:0;color:inherit;font-size:14px}
  .article-content hr{border:0;border-top:1px solid var(--line-100);margin:34px 0}
  .article-content::after{content:"";display:block;clear:both}

  .article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line-200);display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
  .tag-list{display:flex;gap:8px;flex-wrap:wrap}
  .tag{display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:6px;background:#fff;border:1px solid var(--line-200);font-size:13px;color:var(--ink-600);transition:border-color .18s ease-out,color .18s ease-out,background .18s ease-out}
  .tag:hover{border-color:var(--brand-500);color:var(--brand-700);background:rgba(26,92,74,.05)}
  .share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-400)}
  .share-row a{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line-200);background:#fff;font-size:13px;color:var(--ink-600);transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out}
  .share-row a:hover{background:var(--accent-400);border-color:var(--accent-400);color:var(--brand-900)}

  .empty-state{text-align:center;padding:48px 24px;background:#fff;border:1px solid var(--line-200);border-radius:var(--r-card)}
  .empty-state .ph{width:96px;height:96px;margin:0 auto 18px;border:1px solid var(--line-200);border-radius:var(--r-img);background:var(--line-100);display:flex;align-items:center;justify-content:center;color:var(--ink-400);font-size:28px;font-weight:800}
  .empty-state p{font-size:15px;color:var(--ink-600);margin-bottom:18px}

  .back-row{display:flex;justify-content:flex-end;padding:6px 0 56px}
  .back-row .btn-text{font-size:14px}

  /* ============ 延伸阅读 ============ */
  .related{padding:56px 0 8px}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap}
  .section-head h2{font-size:26px;line-height:1.3;font-weight:700;color:var(--brand-900)}
  .section-head p{font-size:15px;color:var(--ink-600);margin-top:6px}
  .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .card-article{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line-200);border-radius:var(--r-card);overflow:hidden;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
  .card-article:hover{transform:translateY(-2px);box-shadow:var(--sd-2);border-color:var(--line-200)}
  .card-media{aspect-ratio:16/9;background:var(--line-100);overflow:hidden}
  .card-media img{width:100%;height:100%;object-fit:cover}
  .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .card-body h3{font-size:17px;line-height:1.45;font-weight:600;color:var(--brand-900)}
  .card-body p{font-size:14px;line-height:1.75;color:var(--ink-600)}
  .card-body .card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700)}
  .card-article:hover .card-link{color:var(--brand-500)}

  /* ============ 下载 CTA ============ */
  .cta-section{padding:64px 0 0}
  .download-cta{position:relative;overflow:hidden;background:var(--brand-900);border-radius:var(--r-lg);padding:56px;display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;color:#fff}
  .download-cta::after{content:"";position:absolute;right:-80px;bottom:-90px;width:260px;height:260px;border-radius:50%;background:repeating-linear-gradient(135deg,rgba(199,242,74,.14) 0 6px,transparent 6px 18px);pointer-events:none}
  .download-cta h2{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:12px}
  .download-cta p{font-size:15px;line-height:1.85;color:#AFC2BA;max-width:460px}
  .platform-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;position:relative;z-index:2}
  .platform-btn{display:flex;align-items:center;justify-content:center;gap:8px;height:52px;border-radius:var(--r-btn);background:#fff;color:var(--brand-900);font-size:15px;font-weight:600;transition:background .2s ease-out,transform .2s ease-out}
  .platform-btn:hover{background:var(--accent-300);transform:translateY(-1px)}
  .platform-btn.is-accent{background:var(--accent-400)}
  .platform-btn.is-accent:hover{background:var(--accent-300)}
  .cta-notes{grid-column:1 / -1;display:flex;gap:20px;flex-wrap:wrap;margin-top:8px;font-size:13px;color:#8FA49B;position:relative;z-index:2}
  .cta-notes a{border-bottom:1px solid transparent;transition:border-color .2s ease-out,color .2s ease-out}
  .cta-notes a:hover{color:var(--accent-400);border-bottom-color:var(--accent-400)}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--brand-900);color:#C9D6D0;margin-top:88px;padding:64px 0 0}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
  .footer-brand .brand-text{color:#fff}
  .footer-brand .brand-mark{background:rgba(255,255,255,.1)}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:#9FB2AA;max-width:340px}
  .footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
  .footer-col a{display:block;font-size:14px;line-height:2;color:#9FB2AA;transition:color .18s ease-out}
  .footer-col a:hover{color:var(--accent-400)}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;font-size:13px;color:#84978F}
  .footer-bottom a{transition:color .18s ease-out}
  .footer-bottom a:hover{color:var(--accent-400)}

  /* ============ 移动吸底条 ============ */
  .mobile-download-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;padding:0 20px;background:#fff;border-top:1px solid var(--line-200);box-shadow:0 -8px 24px -12px rgba(8,33,27,.28);align-items:center;justify-content:space-between;gap:12px;transform:translateY(110%);transition:transform .24s ease-out}
  .mobile-download-bar .ver{font-size:13px;color:var(--ink-400)}
  .mobile-download-bar.is-visible{transform:translateY(0)}

  /* ============ 响应式 ============ */
  @media (max-width:1280px){
    .container{padding:0 28px}
  }
  @media (max-width:1024px){
    .container{padding:0 24px}
    .nav-main{display:none}
    .nav-search{display:none}
    .search-toggle{display:inline-flex}
    .related-grid{grid-template-columns:repeat(3,1fr);gap:16px}
    .download-cta{padding:44px;gap:28px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  }
  @media (max-width:768px){
    .container{padding:0 20px}
    .nav-top{height:56px;gap:12px}
    .brand-text{font-size:16px}
    .article-hero{padding:22px 0 28px}
    .article-reading{padding:32px 0 8px}
    .article-content{font-size:16px;line-height:1.8}
    .article-content h2{font-size:22px;margin:34px 0 14px}
    .article-content h3{font-size:18px;margin:26px 0 10px}
    .related{padding:44px 0 0}
    .related-grid{display:flex;overflow-x:auto;gap:16px;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:6px;margin-right:-20px;padding-right:20px}
    .related-grid::-webkit-scrollbar{display:none}
    .card-article{flex:0 0 260px;scroll-snap-align:start}
    .download-cta{grid-template-columns:1fr;padding:32px 24px}
    .platform-grid{grid-template-columns:1fr}
    .section-head h2{font-size:22px}
    .site-footer{margin-top:64px;padding:48px 0 0}
    .footer-grid{grid-template-columns:1fr 1fr;gap:24px;padding-bottom:36px}
    .footer-brand{grid-column:1 / -1}
    .back-row{justify-content:flex-start;padding-bottom:44px}
    .mobile-download-bar{display:flex}
    body{padding-bottom:72px}
  }
  @media (max-width:520px){
    .nav-actions .btn-sm{display:none}
    .article-meta{gap:10px}
    .article-title{font-size:24px}
    .article-content{font-size:16px;line-height:1.75}
    .article-content table{font-size:14px}
    .footer-grid{grid-template-columns:1fr}
    .share-row{flex-wrap:wrap}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.001ms !important;animation-duration:.001ms !important}
    html{scroll-behavior:auto}
    .btn-primary:hover,.btn-light:hover,.platform-btn:hover,.card-article:hover{transform:none}
  }

/* roulang page: category1 */
:root{
  --brand-900:#08211B;
  --brand-700:#0E332A;
  --brand-500:#1A5C4A;
  --accent-400:#C7F24A;
  --accent-300:#D8FF62;
  --clay-500:#E2623C;
  --sand-50:#F6F4EF;
  --card:#FFFFFF;
  --ink-900:#101613;
  --ink-600:#4A554F;
  --ink-400:#7C877F;
  --line-200:#E1E4DC;
  --line-100:#EEF0E9;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-lg:18px;
  --shadow-weak:0 1px 2px rgba(11,26,22,.06);
  --shadow-card:0 8px 24px -12px rgba(11,26,22,.18);
  --shadow-float:0 18px 40px -20px rgba(8,33,27,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--sand-50);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:none}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-200);
  transition:box-shadow .24s ease-out;
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(11,26,22,.08)}
.nav-top{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{position:relative;display:inline-block;width:26px;height:26px;border-radius:8px;background:var(--brand-700);overflow:hidden}
.brand-mark i{position:absolute;left:-4px;width:36px;height:2px;background:var(--accent-400);border-radius:2px;transform:rotate(-24deg)}
.brand-mark i:nth-child(1){top:7px}
.brand-mark i:nth-child(2){top:13px;background:#fff;opacity:.85}
.brand-mark i:nth-child(3){top:19px}
.brand-text{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:0}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-main a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:15px;color:var(--ink-600);transition:background .18s ease-out,color .18s ease-out;
}
.nav-main a:hover{background:rgba(14,51,42,.07);color:var(--brand-900)}
.nav-main a.is-active{background:rgba(199,242,74,.42);color:var(--brand-900);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:12px;width:16px;height:16px;fill:none;stroke:var(--ink-400);stroke-width:2;stroke-linecap:round}
.nav-search input{
  width:250px;height:40px;padding:0 14px 0 36px;
  border:1px solid var(--line-200);border-radius:var(--radius-btn);
  background:#fff;color:var(--ink-900);font-size:14px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px var(--accent-400)}
.search-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line-200);background:#fff}
.search-toggle svg{width:18px;height:18px;fill:none;stroke:var(--brand-700);stroke-width:2;stroke-linecap:round}
.search-toggle:hover{background:rgba(14,51,42,.06)}
.nav-channels-wrap{border-top:1px solid var(--line-100);background:rgba(255,255,255,.5)}
.nav-channels{
  display:flex;gap:8px;overflow-x:auto;padding:7px 0;
  scrollbar-width:none;-ms-overflow-style:none;scroll-padding-left:20px;
}
.nav-channels::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;
  font-size:14px;color:var(--ink-600);white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.chip:hover{background:rgba(14,51,42,.08);color:var(--brand-900)}
.chip.is-active{background:var(--accent-400);color:var(--brand-900);font-weight:600}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,color .2s ease-out;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--accent-400);color:var(--brand-900);box-shadow:var(--shadow-weak)}
.btn-primary:hover{background:var(--accent-300);transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-primary:active{transform:translateY(0);background:#B9E33C}
.btn-outline{border:1.5px solid var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:rgba(14,51,42,.08)}
.btn-outline:active{background:rgba(14,51,42,.14)}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-ghost{padding:0;height:auto;font-weight:600;color:var(--brand-700);gap:6px}
.btn-ghost span{transition:transform .2s ease-out}
.btn-ghost:hover span{transform:translateX(3px)}
.btn-ghost:hover{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;text-decoration-color:var(--accent-400)}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ============ Hero ============ */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(8,33,27,.72),rgba(8,33,27,.68)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero-inner{padding:56px 0 64px;max-width:820px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7)}
.crumb a:hover{color:var(--accent-400)}
.crumb .sep{opacity:.5}
.crumb .current{color:#fff}
.hero h1{
  margin-top:16px;font-size:36px;line-height:1.2;font-weight:800;letter-spacing:-.01em;color:#fff;
}
.hero-lead{margin-top:16px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:16px 40px;margin-top:36px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.18);
}
.stat-num{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--accent-400);line-height:1.2}
.stat-label{font-size:13px;color:rgba(255,255,255,.66);margin-top:4px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:36px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;
  background:rgba(226,98,60,.12);color:var(--clay-500);
  font-size:12px;font-weight:600;letter-spacing:.02em;margin-bottom:14px;
}
.section-head h2{font-size:26px;line-height:1.3;font-weight:700}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-600)}

/* ============ 大卡 + 小卡 网格 ============ */
.feature-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:20px}
.feature-main{
  position:relative;grid-row:span 3;min-height:420px;border-radius:var(--radius-lg);
  overflow:hidden;display:flex;align-items:flex-end;
  background:linear-gradient(180deg,rgba(8,33,27,.28),rgba(8,33,27,.82)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  box-shadow:var(--shadow-card);transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.feature-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-float)}
.feature-main-body{padding:32px;color:#fff;max-width:520px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;
  font-size:12px;font-weight:600;background:rgba(255,255,255,.16);color:#fff;
}
.tag-solid{background:var(--accent-400);color:var(--brand-900)}
.feature-main h3{font-size:24px;line-height:1.35;font-weight:700}
.feature-main p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.85)}
.feature-main .btn-ghost{color:var(--accent-400);margin-top:18px;display:inline-flex}
.feature-main .btn-ghost:hover{text-decoration-color:#fff}
.feature-side{display:flex;flex-direction:column;gap:20px}
.mini-card{
  display:grid;grid-template-columns:132px 1fr;gap:16px;align-items:center;
  background:var(--card);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:14px;box-shadow:var(--shadow-weak);
  transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card)}
.mini-card figure{margin:0;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:var(--line-100)}
.mini-card img{width:100%;height:100%;object-fit:cover}
.mini-card h3{font-size:17px;line-height:1.4;font-weight:600}
.mini-card p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--ink-600)}

/* ============ 编号要点 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;background:var(--line-100);box-shadow:var(--shadow-card)}
.split img{width:100%;height:100%;object-fit:cover}
.steps{display:flex;flex-direction:column}
.step{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line-100)}
.step:first-child{padding-top:0}
.step:last-child{border-bottom:none;padding-bottom:0}
.step-num{
  flex:none;font-size:30px;font-weight:800;line-height:1;color:var(--brand-500);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.step h3{font-size:17px;font-weight:600;line-height:1.5}
.step p{margin-top:8px;font-size:15px;color:var(--ink-600)}

/* ============ 赛程时间线 ============ */
.timeline{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line-200);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-weak)}
.timeline-item{display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;padding:20px 24px;border-bottom:1px solid var(--line-100);transition:background .18s ease-out}
.timeline-item:last-child{border-bottom:none}
.timeline-item:hover{background:rgba(199,242,74,.10)}
.tl-time{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--brand-700)}
.tl-time small{display:block;font-size:12px;font-weight:400;color:var(--ink-400);margin-top:2px}
.tl-body h3{font-size:16px;font-weight:600;line-height:1.5}
.tl-body p{margin-top:6px;font-size:14px;color:var(--ink-600)}
.tl-state{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;
  font-size:12px;font-weight:600;white-space:nowrap;
  background:rgba(14,51,42,.08);color:var(--brand-700);
}
.tl-state.is-live{background:var(--clay-500);color:#fff}

/* ============ 终端支持 ============ */
.device-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.device-card{
  background:var(--card);border:1px solid var(--line-200);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-weak);transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.device-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card)}
.device-card.is-wide{grid-column:span 2;display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.device-card h3{font-size:18px;font-weight:600;line-height:1.5}
.device-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.device-card.is-wide p{color:rgba(255,255,255,.82)}
.spec-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.spec-list li{display:flex;justify-content:space-between;gap:16px;font-size:14px;padding-bottom:10px;border-bottom:1px solid var(--line-100)}
.spec-list li:last-child{border-bottom:none;padding-bottom:0}
.spec-list b{font-weight:600;color:var(--ink-900);font-variant-numeric:tabular-nums}
.device-card.is-wide .spec-list li{border-bottom-color:rgba(255,255,255,.16);color:rgba(255,255,255,.7)}
.device-card.is-wide .spec-list b{color:var(--accent-400)}

/* ============ 观众反馈 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote-card{background:var(--card);border:1px solid var(--line-200);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-weak)}
.quote-top{display:flex;align-items:center;gap:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-500);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;flex:none}
.quote-name{font-size:15px;font-weight:600}
.stars{display:flex;gap:3px;margin-top:4px}
.stars i{width:11px;height:11px;background:var(--accent-400);clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%)}
.stars i.is-empty{background:var(--line-200)}
.quote-card p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.quote-date{margin-top:14px;font-size:13px;color:var(--ink-400)}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line-100);transition:background .2s ease-out}
.faq-item:first-child{border-top:1px solid var(--line-100)}
.faq-item[open]{background:rgba(199,242,74,.08);box-shadow:inset 3px 0 0 var(--accent-400)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 18px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;width:26px;height:26px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(14,51,42,.08);color:var(--brand-700);font-size:18px;font-weight:600;line-height:1;
}
.faq-item[open] summary::after{content:"−";background:var(--accent-400);color:var(--brand-900)}
.faq-item .faq-answer{padding:0 18px 22px;font-size:15px;line-height:1.8;color:var(--ink-600)}

/* ============ CTA ============ */
.cta-block{
  background:var(--brand-900);color:#fff;border-radius:var(--radius-lg);
  padding:56px;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;
}
.cta-block h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff}
.cta-block p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.8);max-width:520px}
.cta-actions{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cta-actions .btn{width:100%}
.cta-note{grid-column:span 2;margin-top:6px;font-size:13px;color:rgba(255,255,255,.62)}
.cta-note a{text-decoration:underline;text-underline-offset:3px}
.cta-note a:hover{color:var(--accent-400)}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;line-height:2;color:rgba(255,255,255,.72);transition:color .18s ease-out}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;
  padding:22px 0 30px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.58)}
.footer-bottom a:hover{color:var(--accent-400)}
.footer-bottom span:last-of-type{margin-left:auto}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-main a{padding:0 10px;font-size:14px}
  .nav-search input{width:200px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .section{padding:72px 0}
  .feature-grid{grid-template-columns:1fr}
  .feature-main{grid-row:auto;min-height:360px}
  .split{grid-template-columns:1fr;gap:32px}
  .quote-grid{grid-template-columns:1fr 1fr}
  .cta-block{grid-template-columns:1fr;padding:40px}
  .cta-note{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .device-card.is-wide{grid-template-columns:1fr}
}
@media (max-width:768px){
  .nav-search{display:none}
  .search-toggle{display:inline-flex}
  .nav-actions .btn-sm{display:none}
  .hero-inner{padding:40px 0 48px}
  .hero h1{font-size:27px}
  .hero-lead{font-size:16px}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .device-grid{grid-template-columns:1fr}
  .device-card.is-wide{grid-column:span 1}
  .quote-grid{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:1fr;gap:10px;align-items:flex-start}
  .mini-card{grid-template-columns:110px 1fr}
  .cta-actions{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .footer-bottom span:last-of-type{margin-left:0}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .brand-text{font-size:16px}
  .hero h1{font-size:24px}
  .feature-main-body{padding:22px}
  .feature-main h3{font-size:20px}
  .mini-card{grid-template-columns:1fr}
  .mini-card figure{aspect-ratio:16/9}
  .cta-block{padding:28px;border-radius:14px}
  .btn{width:100%}
  .btn-ghost{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand-900:#08211B;
  --brand-700:#0E332A;
  --brand-500:#1A5C4A;
  --accent-400:#C7F24A;
  --accent-300:#D8FF62;
  --clay-500:#E2623C;
  --sand-50:#F6F4EF;
  --card:#FFFFFF;
  --ink-900:#101613;
  --ink-600:#4A554F;
  --ink-400:#7C877F;
  --line-200:#E1E4DC;
  --line-100:#EEF0E9;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-lg:18px;
  --r-tag:6px;
  --sh-1:0 1px 2px rgba(11,26,22,.06);
  --sh-2:0 8px 24px -12px rgba(11,26,22,.18);
  --sh-3:0 18px 40px -20px rgba(8,33,27,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:124px}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0 0 1em}
ul,dl,dd{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:6px}
.site-footer :focus-visible,.cta-dark :focus-visible{outline-color:var(--accent-400)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

body .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--accent-400);color:var(--brand-900);border-color:var(--accent-400)}
.btn-primary:hover{background:var(--accent-300);border-color:var(--accent-300);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);background:var(--accent-400)}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
.btn-ghost:hover{background:rgba(14,51,42,.08)}
.btn-ghost:active{background:rgba(14,51,42,.14)}
.btn-light{background:#FFFFFF;color:var(--brand-900);border-color:#FFFFFF}
.btn-light:hover{background:#F1F4EC;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-light:active{transform:translateY(0)}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--brand-700);border-bottom:2px solid transparent;padding-bottom:2px;
  transition:border-color .22s var(--ease),color .22s var(--ease);white-space:nowrap;
}
.link-arrow span{transition:transform .22s var(--ease)}
.link-arrow:hover{border-bottom-color:var(--accent-400)}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-200);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-top{position:relative;display:flex;align-items:center;gap:18px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:18px}
.brand-mark i{display:block;width:5px;border-radius:2px;transform:skewX(-14deg)}
.brand-mark i:nth-child(1){height:11px;background:var(--brand-700)}
.brand-mark i:nth-child(2){height:18px;background:var(--brand-500)}
.brand-mark i:nth-child(3){height:14px;background:var(--accent-400)}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900)}
.nav-main{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;min-width:0}
.nav-main a{
  padding:8px 14px;border-radius:999px;font-size:15px;color:var(--ink-600);
  transition:background-color .2s var(--ease),color .2s var(--ease);white-space:nowrap;
}
.nav-main a:hover{background:rgba(14,51,42,.08);color:var(--brand-700)}
.nav-main a.is-active{color:var(--brand-900);font-weight:600;background:rgba(14,51,42,.07)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:12px;width:16px;height:16px;fill:none;stroke:var(--ink-400);stroke-width:2;stroke-linecap:round}
.nav-search input{
  width:238px;height:44px;padding:0 14px 0 34px;border:1px solid var(--line-200);
  border-radius:var(--r-btn);background:#fff;font-size:14px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{border-color:var(--brand-500);box-shadow:0 0 0 2px var(--accent-400)}
.search-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--line-200);border-radius:var(--r-btn);background:#fff;cursor:pointer;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.search-toggle svg{width:18px;height:18px;fill:none;stroke:var(--brand-700);stroke-width:2;stroke-linecap:round}
.search-toggle:hover{background:rgba(14,51,42,.06)}
.nav-channels-wrap{border-top:1px solid var(--line-100)}
.nav-channels{
  display:flex;gap:8px;overflow-x:auto;scroll-behavior:smooth;
  padding:7px 0;scroll-padding-left:20px;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-channels::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:14px;color:var(--ink-600);background:transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease);
  scroll-snap-align:start;white-space:nowrap;
}
.chip:hover{background:rgba(14,51,42,.08);color:var(--brand-700)}
.chip.is-active{background:var(--accent-400);color:var(--brand-900);font-weight:600}

/* ---------- 首屏 ---------- */
.page-hero{padding:26px 0 8px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-400);margin-bottom:16px}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:var(--line-200)}
.breadcrumb .current{color:var(--ink-900)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:44px;align-items:start}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-tag);
  font-size:12px;font-weight:600;line-height:1.2;letter-spacing:.02em;
}
.tag-brand{background:rgba(26,92,74,.12);color:var(--brand-700)}
.tag-clay{background:rgba(226,98,60,.13);color:var(--clay-500)}
h1{
  margin:14px 0 0;font-size:clamp(26px,3.4vw,38px);line-height:1.22;
  font-weight:800;letter-spacing:-.01em;color:var(--brand-900);
}
.lede{margin:16px 0 0;font-size:17px;line-height:1.85;color:var(--ink-600);max-width:760px}
.anchor-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.pill-outline{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line-200);background:#fff;font-size:14px;color:var(--ink-600);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.pill-outline:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px)}
.stat-panel{
  background:#fff;border:1px solid var(--line-200);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:10px 24px 18px;
}
.stat-panel-title{
  font-size:13px;color:var(--ink-400);letter-spacing:.06em;padding:14px 0 10px;
  border-bottom:1px solid var(--line-100);
}
.stat-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}
.stat{padding:16px 0;border-bottom:1px solid var(--line-100)}
.stat:nth-last-child(-n+2){border-bottom:0}
.stat-num{
  display:block;font-size:24px;font-weight:800;line-height:1.2;color:var(--clay-500);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat-label{display:block;margin-top:2px;font-size:13px;color:var(--ink-400);line-height:1.6}

/* ---------- 板块通用 ---------- */
.section{padding:52px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:26px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900)}
.section-sub{margin:10px 0 0;font-size:15px;color:var(--ink-600);max-width:640px}
.section-dark{background:var(--brand-900);color:#fff;border-radius:var(--r-lg)}

/* ---------- 横向数据视图卡组 ---------- */
.scroll-x{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 16px;
  scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
}
.scroll-x::-webkit-scrollbar{display:none}
.view-card{
  flex:0 0 280px;background:#fff;border:1px solid var(--line-200);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);scroll-snap-align:start;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.view-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.view-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.view-card .view-body{padding:18px 20px 20px}
.view-card h3{font-size:17px;font-weight:600;margin-bottom:6px}
.view-card p{margin:0;font-size:14px;line-height:1.7;color:var(--ink-600)}

/* ---------- 交错图文流 ---------- */
.flow{display:flex;flex-direction:column;gap:48px}
.flow-item{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:44px;align-items:center}
.flow-item.is-reverse .flow-media{order:2}
.flow-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh-2);background:var(--line-100);aspect-ratio:16/9;
}
.flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.flow-item:hover .flow-media img{transform:scale(1.03)}
.flow-body h3{font-size:20px;font-weight:600;margin:12px 0 10px;color:var(--brand-900)}
.flow-body p{margin:0 0 16px;font-size:15px;line-height:1.85;color:var(--ink-600)}

/* ---------- 更新节奏 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  background:#fff;border:1px solid var(--line-200);border-radius:var(--r-card);
  padding:24px 22px 22px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{
  display:block;font-size:32px;font-weight:800;line-height:1;color:var(--brand-500);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.step h3{font-size:17px;font-weight:600;margin:14px 0 8px}
.step p{margin:0;font-size:14px;line-height:1.75;color:var(--ink-600)}
.step-line{width:28px;height:3px;background:var(--accent-400);border-radius:2px;margin-top:16px}

/* ---------- FAQ ---------- */
.faq{
  max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line-200);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.faq details{border-bottom:1px solid var(--line-100)}
.faq details:last-child{border-bottom:0}
.faq summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
  transition:background-color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;line-height:1;color:var(--brand-500);font-weight:600}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{background:rgba(199,242,74,.14)}
.faq details[open] summary::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-400)}
.faq .answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-600)}
.faq .answer p{margin:0}

/* ---------- 深色 CTA ---------- */
.cta-dark{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background-color:var(--brand-900);
  background-image:linear-gradient(rgba(8,33,27,.86),rgba(8,33,27,.9)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  color:#fff;padding:56px;
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:44px;align-items:center;
}
.cta-dark h2{font-size:26px;font-weight:700;letter-spacing:-.01em}
.cta-dark p{margin:14px 0 0;font-size:15px;line-height:1.85;color:#C9D6CF;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-links{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;font-size:13px;color:#93A79C}
.cta-links a{border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.cta-links a:hover{color:var(--accent-400);border-bottom-color:var(--accent-400)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C9D6CF;padding:64px 0 28px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin:16px 0 0;font-size:14px;line-height:1.85;color:#9FB1A8;max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;line-height:2;color:#B7C6BE;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;
  font-size:13px;color:#8CA096;
}
.footer-bottom a{transition:color .2s var(--ease)}
.footer-bottom a:hover{color:var(--accent-400)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  body .container{padding:0 24px}
  .nav-main{display:none}
  .nav-search{display:none}
  .search-toggle{display:inline-flex}
  body.search-open .nav-search{
    display:flex;position:absolute;left:0;right:0;top:56px;z-index:90;
    background:#fff;padding:8px;border-radius:12px;box-shadow:var(--sh-3);
  }
  body.search-open .nav-search input{width:100%}
  .nav-top{height:56px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .flow-item{grid-template-columns:minmax(0,1fr);gap:24px}
  .flow-item.is-reverse .flow-media{order:0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-dark{grid-template-columns:minmax(0,1fr);gap:28px;padding:40px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:768px){
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:22px}
  .section-head h2{font-size:22px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .view-card{flex:0 0 240px}
}
@media (max-width:640px){
  body .container{padding:0 20px}
  body{font-size:16px;line-height:1.75}
  .nav-actions .btn-sm{padding:0 14px}
  .stat-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .cta-dark{padding:28px 22px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .flow-item:hover .flow-media img{transform:none}
  .btn:hover,.step:hover,.view-card:hover,.pill-outline:hover{transform:none}
}

/* roulang page: category3 */
:root{
    --brand-900:#08211B;
    --brand-700:#0E332A;
    --brand-500:#1A5C4A;
    --accent-400:#C7F24A;
    --accent-300:#D8FF62;
    --clay-500:#E2623C;
    --sand-50:#F6F4EF;
    --card:#FFFFFF;
    --ink-900:#101613;
    --ink-600:#4A554F;
    --ink-400:#7C877F;
    --line-200:#E1E4DC;
    --line-100:#EEF0E9;
    --radius-card:14px;
    --radius-btn:10px;
    --radius-img:12px;
    --radius-lg:18px;
    --shadow-1:0 1px 2px rgba(11,26,22,.06);
    --shadow-2:0 8px 24px -12px rgba(11,26,22,.18);
    --shadow-3:0 18px 40px -20px rgba(8,33,27,.28);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body.site{
    margin:0;
    background:var(--sand-50);
    color:var(--ink-900);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  body.site img{max-width:100%;display:block}
  body.site a{color:inherit}
  body.site p{margin:0 0 1em}
  :focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:4px}
  .on-dark :focus-visible{outline-color:var(--accent-400)}

  .container,body.site .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

  /* 导航 */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.94);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line-200);transition:box-shadow .22s ease-out}
  .site-header.is-scrolled{box-shadow:var(--shadow-1)}
  .nav-top{display:flex;align-items:center;gap:22px;height:64px;position:relative}
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
  .brand-mark{display:inline-flex;flex-direction:column;justify-content:center;gap:3px;width:30px;height:30px;border-radius:9px;background:var(--brand-700);padding:0 6px;flex:0 0 auto}
  .brand-mark i{display:block;height:3px;border-radius:2px;background:var(--accent-400)}
  .brand-mark i:nth-child(2){width:72%;background:rgba(255,255,255,.9)}
  .brand-mark i:nth-child(3){width:44%;background:rgba(255,255,255,.55)}
  .brand-text{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:.01em}
  .nav-main{display:flex;align-items:center;gap:2px;margin-left:6px}
  .nav-main a{position:relative;padding:8px 12px;font-size:14.5px;color:var(--ink-600);text-decoration:none;border-radius:8px;transition:color .2s ease-out,background .2s ease-out}
  .nav-main a:hover{color:var(--brand-900);background:rgba(14,51,42,.07)}
  .nav-main a.is-active{color:var(--brand-900);font-weight:600}
  .nav-main a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--accent-400)}
  .nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .nav-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--line-200);border-radius:10px;background:#fff;transition:border-color .2s,box-shadow .2s}
  .nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 2px var(--accent-400)}
  .nav-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-400);stroke-width:2;stroke-linecap:round;flex:0 0 auto}
  .nav-search input{border:0;outline:0;background:transparent;width:212px;font-size:14px;color:var(--ink-900);font-family:inherit}
  .nav-search input::placeholder{color:var(--ink-400)}
  .search-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-200);background:#fff;cursor:pointer;transition:background .2s,border-color .2s}
  .search-toggle:hover{background:#fff;border-color:var(--brand-500)}
  .search-toggle svg{width:18px;height:18px;fill:none;stroke:var(--ink-600);stroke-width:2;stroke-linecap:round}
  .nav-channels-wrap{border-top:1px solid var(--line-100)}
  .nav-channels{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-padding-left:20px}
  .nav-channels::-webkit-scrollbar{display:none}
  .chip{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;font-size:13.5px;color:var(--ink-600);text-decoration:none;background:transparent;transition:background .2s ease-out,color .2s ease-out}
  .chip:hover{background:rgba(14,51,42,.08);color:var(--brand-900)}
  .chip.is-active{background:var(--accent-400);color:var(--brand-900);font-weight:600}

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;text-decoration:none;border:1.5px solid transparent;cursor:pointer;font-family:inherit;transition:background .22s ease-out,color .22s ease-out,transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
  .btn-primary{background:var(--accent-400);color:var(--brand-900);box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:var(--accent-300);transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(0);background:#B7E03C}
  .btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
  .btn-outline:hover{background:rgba(14,51,42,.08)}
  .btn-outline:active{background:rgba(14,51,42,.14)}
  .btn-light{background:#fff;color:var(--brand-900)}
  .btn-light:hover{background:var(--accent-300);transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-light:active{transform:translateY(0)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
  .btn-ghost{display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:0;font-family:inherit;font-size:14.5px;font-weight:600;color:var(--brand-700);cursor:pointer;transition:color .2s}
  .btn-ghost:hover{color:var(--brand-900)}
  .btn-ghost .arrow{transition:transform .22s ease-out}
  .btn-ghost:hover .arrow{transform:translateX(2px)}
  .btn-ghost:hover .label{text-decoration:underline;text-decoration-color:var(--accent-400);text-decoration-thickness:2px;text-underline-offset:4px}

  /* 面包屑与 Hero */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-400);margin:26px 0 18px}
  .breadcrumb a{color:var(--ink-400);text-decoration:none;transition:color .2s}
  .breadcrumb a:hover{color:var(--brand-700)}
  .breadcrumb .sep{color:#C9CFC6}
  .breadcrumb .current{color:var(--ink-900);font-weight:600}

  .hero{padding:6px 0 72px}
  .hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--brand-700);background:rgba(199,242,74,.4);border:1px solid rgba(14,51,42,.14);border-radius:6px;padding:5px 10px;letter-spacing:.02em}
  h1.hero-title{font-size:36px;line-height:1.22;font-weight:800;letter-spacing:-.01em;margin:18px 0 16px;color:var(--ink-900)}
  p.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-600);max-width:580px;margin:0 0 26px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px}
  .stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line-200)}
  .stat-row .num{font-size:22px;font-weight:800;color:var(--clay-500);line-height:1.2;font-variant-numeric:tabular-nums}
  .stat-row .lbl{font-size:13px;color:var(--ink-400);margin-top:4px}
  .hero-visual{position:relative}
  .hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-2)}
  .float-card{position:absolute;left:-20px;bottom:-20px;background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-3);padding:16px 18px;min-width:186px}
  .float-card .tag{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-900);background:var(--accent-400);border-radius:6px;padding:2px 8px;margin-bottom:8px}
  .float-card .ver{font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-900);line-height:1.3}
  .float-card .meta{font-size:13px;color:var(--ink-400)}

  /* 板块 */
  .section{padding:80px 0}
  .section-alt{background:#fff;border-top:1px solid var(--line-100);border-bottom:1px solid var(--line-100)}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
  h2.section-title{font-size:26px;line-height:1.3;font-weight:700;margin:0 0 8px;color:var(--ink-900)}
  .section-desc{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0;max-width:700px}

  /* 安装包列表 + 侧栏 */
  .install-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start}
  .platform-list{background:#fff;border:1px solid var(--line-200);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
  .platform-item{display:grid;grid-template-columns:120px minmax(0,1fr) 148px;gap:20px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line-100);transition:background .2s ease-out}
  .platform-item:last-child{border-bottom:0}
  .platform-item:hover{background:#FBFAF6}
  .platform-item img{width:120px;height:80px;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line-100)}
  .platform-item h3{font-size:17px;font-weight:600;margin:0 0 6px;color:var(--ink-900);line-height:1.4}
  .platform-item p{margin:0;font-size:14.5px;line-height:1.7;color:var(--ink-600)}
  .platform-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;text-align:right}
  .platform-meta .meta-line{font-size:13px;color:var(--ink-400);line-height:1.6;font-variant-numeric:tabular-nums}
  .platform-meta .meta-link{font-size:13.5px;font-weight:600;color:var(--brand-700);text-decoration:none;transition:color .2s}
  .platform-meta .meta-link:hover{color:var(--brand-900);text-decoration:underline;text-decoration-color:var(--accent-400);text-decoration-thickness:2px;text-underline-offset:4px}

  .sidebar{display:flex;flex-direction:column;gap:20px}
  .side-card{background:#fff;border:1px solid var(--line-200);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1)}
  .side-card h3{font-size:15.5px;font-weight:600;margin:0 0 14px;color:var(--ink-900)}
  .pill-group{display:flex;flex-wrap:wrap;gap:8px}
  .pill{display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:999px;border:1px solid var(--line-200);font-size:13px;color:var(--ink-600);text-decoration:none;transition:border-color .2s,color .2s,background .2s}
  .pill:hover{border-color:var(--brand-700);color:var(--brand-900);background:rgba(14,51,42,.05)}
  .pill.is-current{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
  .side-download{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
  .side-download h3{color:#fff}
  .side-download .dl-ver{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2}
  .side-download .dl-note{font-size:13px;color:rgba(255,255,255,.66);margin:6px 0 18px}
  .side-download .btn{width:100%}
  .side-download .side-links{margin-top:14px;display:flex;flex-direction:column;gap:6px}
  .side-download .side-links a{font-size:13px;color:rgba(255,255,255,.72);text-decoration:none;transition:color .2s}
  .side-download .side-links a:hover{color:var(--accent-400)}
  .side-card .contact-mail{display:inline-block;font-size:14.5px;font-weight:600;color:var(--brand-700);text-decoration:none;font-variant-numeric:tabular-nums;word-break:break-all}
  .side-card .contact-mail:hover{text-decoration:underline;text-decoration-color:var(--accent-400);text-decoration-thickness:2px;text-underline-offset:4px}
  .side-card .contact-note{font-size:13.5px;color:var(--ink-600);line-height:1.75;margin:12px 0 0}

  /* 流程 */
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  .step{background:#fff;border:1px solid var(--line-200);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);transition:transform .22s ease-out,box-shadow .22s ease-out}
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .step .idx{font-size:32px;font-weight:800;line-height:1;color:var(--brand-500);font-variant-numeric:tabular-nums}
  .step h3{font-size:16.5px;font-weight:600;margin:14px 0 8px;color:var(--ink-900)}
  .step p{margin:0;font-size:14px;line-height:1.75;color:var(--ink-600)}

  /* 环境要求 */
  .spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .spec-card{background:#fff;border:1px solid var(--line-200);border-radius:var(--radius-card);padding:22px;transition:border-color .2s,box-shadow .2s}
  .spec-card:hover{border-color:#CBD3C8;box-shadow:var(--shadow-1)}
  .spec-card .plat{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;color:var(--ink-900)}
  .spec-card .plat span.dot{width:10px;height:10px;border-radius:3px;background:var(--brand-500);flex:0 0 auto}
  .spec-card dl{margin:0}
  .spec-card dt{font-size:13px;color:var(--ink-400);margin-top:16px}
  .spec-card dd{margin:4px 0 0;font-size:14.5px;color:var(--ink-900);line-height:1.7;font-variant-numeric:tabular-nums}

  /* FAQ */
  .faq-wrap{max-width:820px;margin:0 auto}
  .faq-list{background:#fff;border:1px solid var(--line-200);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
  .faq-item{border-bottom:1px solid var(--line-100)}
  .faq-item:last-child{border-bottom:0}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:0;font-family:inherit;font-size:16px;font-weight:600;color:var(--ink-900);text-align:left;line-height:1.6;cursor:pointer;transition:background .2s ease-out,box-shadow .2s ease-out}
  .faq-q:hover{background:#FBFAF6}
  .faq-item.is-open .faq-q{background:#FBFAF8;box-shadow:inset 3px 0 0 var(--accent-400)}
  .faq-sign{position:relative;flex:0 0 auto;width:20px;height:20px}
  .faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px}
  .faq-sign::before{left:0;right:0;top:9px;height:2px}
  .faq-sign::after{top:0;bottom:0;left:9px;width:2px;transition:transform .2s ease-out,opacity .2s ease-out}
  .faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0}
  .faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-600)}
  .faq-item.is-open .faq-a{display:block}

  /* CTA */
  .cta-band{position:relative;overflow:hidden;background:var(--brand-900);border-radius:var(--radius-lg);padding:56px;color:#fff}
  .cta-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.26}
  .cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
  .cta-band h2{font-size:26px;font-weight:800;line-height:1.3;margin:0 0 14px;color:#fff}
  .cta-band p{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.76);margin:0 0 18px;max-width:460px}
  .cta-platforms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .cta-platforms .btn{height:52px;font-size:15px}
  .cta-links{position:relative;display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:13px}
  .cta-links a{color:rgba(255,255,255,.7);text-decoration:none;transition:color .2s}
  .cta-links a:hover{color:var(--accent-400);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}

  /* 页脚 */
  .site-footer{background:var(--brand-900);color:#DDE6E1;margin-top:88px;padding:64px 0 24px}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
  .footer-brand .brand-text{color:#fff}
  .footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);margin:16px 0 0;max-width:340px}
  .footer-col h3{font-size:15px;font-weight:600;color:#fff;margin:0 0 14px}
  .footer-col a{display:block;font-size:14px;line-height:2;color:rgba(255,255,255,.72);text-decoration:none;transition:color .2s}
  .footer-col a:hover{color:var(--accent-400)}
  .footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13px;color:rgba(255,255,255,.6)}
  .footer-bottom a{color:rgba(255,255,255,.6);text-decoration:none;transition:color .2s}
  .footer-bottom a:hover{color:var(--accent-400)}

  @media (min-width:1024px){
    .sidebar{position:sticky;top:130px}
  }
  @media (max-width:1024px){
    .container,body.site .container{padding:0 24px}
    .nav-main{display:none}
    .nav-search{display:none}
    .search-toggle{display:inline-flex}
    .site-header.search-open .nav-search{display:flex;position:absolute;left:24px;right:24px;top:60px;z-index:80;background:#fff;box-shadow:var(--shadow-3)}
    .site-header.search-open .nav-search input{width:100%}
    .hero-grid{grid-template-columns:1fr;gap:40px}
    .hero{padding-bottom:56px}
    .install-layout{grid-template-columns:1fr}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
    .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-inner{grid-template-columns:1fr;gap:32px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .section{padding:72px 0}
  }
  @media (max-width:768px){
    .nav-top{height:56px;gap:12px}
    h1.hero-title{font-size:28px}
    .hero-sub{font-size:16px}
    .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .platform-item{grid-template-columns:96px minmax(0,1fr);gap:16px;padding:18px}
    .platform-item img{width:96px;height:64px}
    .platform-meta{grid-column:2;align-items:flex-start;text-align:left;flex-direction:row;flex-wrap:wrap;gap:12px;margin-top:8px}
    .cta-band{padding:36px 28px}
    .float-card{left:12px;bottom:-16px;padding:12px 14px;min-width:160px}
  }
  @media (max-width:640px){
    .container,body.site .container{padding:0 20px}
    .section{padding:56px 0}
    .steps,.spec-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .hero-actions .btn{width:100%}
    .cta-band{padding:32px 22px;border-radius:16px}
    .cta-platforms{grid-template-columns:1fr}
    h2.section-title{font-size:22px}
    .breadcrumb{margin-top:18px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.01ms !important;animation-duration:.01ms !important}
    html{scroll-behavior:auto}
  }