/* roulang page: index */
:root{
  --c-primary:#0FA37F;
  --c-primary-d:#0B7A5F;
  --c-primary-l:#E6F6F0;
  --c-accent:#FF7A3D;
  --c-accent-d:#E8622A;
  --c-ink:#12211C;
  --c-text:#33463F;
  --c-muted:#6C7F79;
  --c-bg:#F6F8F6;
  --c-surface:#FFFFFF;
  --c-dark:#0D1F1A;
  --c-line:#E2E9E5;
  --c-focus:rgba(15,163,127,.35);
  --c-warn:#D97706;
  --c-err:#DC2626;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(13,31,26,.04);
  --sh-2:0 10px 28px -12px rgba(13,31,26,.18);
  --tr:.22s cubic-bezier(.2,.7,.3,1);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color var(--tr),background-color var(--tr),border-color var(--tr),transform var(--tr)}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{display:block;flex:none}
:focus-visible{outline:3px solid var(--c-focus);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sp-section) 0}
.section--tight{padding:56px 0}
.hairline{height:1px;border:0;margin:0;background:linear-gradient(90deg,rgba(226,233,229,0) 0%,var(--c-line) 18%,var(--c-line) 82%,rgba(226,233,229,0) 100%)}

/* ---------- 通用文本 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--c-primary-d);background:var(--c-primary-l);border-radius:999px;padding:5px 12px}
.sec-head{margin-bottom:36px;max-width:760px}
.sec-head h2{font-size:30px;line-height:1.25;font-weight:700;letter-spacing:.01em;color:var(--c-ink);margin:14px 0 12px}
.sec-head p{font-size:16px;color:var(--c-muted)}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.lead{font-size:16px;color:var(--c-text)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:999px;font-size:15.5px;font-weight:600;line-height:1;border:1px solid transparent;transition:all var(--tr);white-space:nowrap}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn--accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px -10px rgba(232,98,42,.65)}
.btn--accent:hover{background:var(--c-accent-d);transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(232,98,42,.7)}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -10px rgba(11,122,95,.6)}
.btn--primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(11,122,95,.6)}
.btn--ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary-d)}
.btn--ghost:hover{background:var(--c-primary-l);transform:translateY(-1px)}
.btn--light{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn--light:hover{background:#F1F5F3;transform:translateY(-1px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn--lg{height:52px;padding:0 30px;font-size:16px}
.btn--block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1}
.badge--cat{background:var(--c-primary-l);color:var(--c-primary-d)}
.badge--ver{background:rgba(255,122,61,.12);color:var(--c-accent-d)}
.badge--soft{background:rgba(13,31,26,.05);color:var(--c-muted)}
.badge--on-dark{background:rgba(63,211,171,.14);color:#3FD3AB}

/* ---------- 公告条 ---------- */
.announce{background:var(--c-primary-l);border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-primary-d)}
.announce .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.announce p{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.announce-close{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;color:var(--c-primary-d)}
.announce-close:hover{background:rgba(15,163,127,.14)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);transition:box-shadow var(--tr)}
.site-header.is-stuck{box-shadow:0 4px 16px -8px rgba(13,31,26,.28)}
.nav-top .container{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(140deg,var(--c-primary),var(--c-primary-d));display:grid;place-items:center;color:#fff}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--c-ink);white-space:nowrap}
.logo-text b{color:var(--c-primary-d)}
.search{position:relative;flex:1;max-width:560px;display:flex;align-items:center;height:44px;border:1px solid var(--c-line);background:var(--c-bg);border-radius:999px;padding:0 6px 0 14px;transition:all var(--tr)}
.search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(15,163,127,.12);background:#fff}
.search svg{color:var(--c-muted)}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14.5px;padding:0 10px}
.search input::placeholder{color:#9AAAA4}
.search-btn{height:34px;padding:0 16px;border-radius:999px;background:var(--c-primary);color:#fff;font-size:13.5px;font-weight:600}
.search-btn:hover{background:var(--c-primary-d)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);place-items:center}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;margin:3px auto}
.hamburger:hover{background:var(--c-bg)}
.nav-cats{border-top:1px solid var(--c-line)}
.nav-cats .container{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none}
.nav-cats .container::-webkit-scrollbar{display:none}
.cat-pill{display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:500;color:var(--c-text);white-space:nowrap;border:1px solid transparent}
.cat-pill:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.cat-pill.active{background:var(--c-primary);color:#fff;font-weight:600}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.4);opacity:0;visibility:hidden;transition:opacity var(--tr);z-index:90}
.drawer{position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;z-index:95;transform:translateX(102%);transition:transform .28s cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;padding:18px 18px 24px;overflow-y:auto}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer h4{font-size:13px;letter-spacing:.06em;color:var(--c-muted);font-weight:700;margin:18px 0 10px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--c-line);margin-bottom:10px;font-size:15px;font-weight:500}
.drawer-link:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:var(--c-primary-l)}
.drawer .search{max-width:none;margin-bottom:14px}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--c-surface);overflow:hidden;border-bottom:1px solid var(--c-line)}
.hero::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;opacity:.16}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(13,31,26,.10) 1px,transparent 1px);background-size:16px 16px;opacity:.5;pointer-events:none}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;min-height:560px;padding-top:56px;padding-bottom:56px}
.hero-copy{max-width:560px}
.hero h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.01em;color:var(--c-ink);margin:18px 0 16px}
.hero h1 em{font-style:normal;color:var(--c-primary-d)}
.hero-sub{font-size:17px;color:var(--c-text);margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative}
.hero-shot{position:relative;aspect-ratio:16/10;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-line);box-shadow:0 24px 48px -24px rgba(13,31,26,.35);background:#fff}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-float{position:absolute;right:-8px;bottom:-18px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:12px 16px;box-shadow:var(--sh-2)}
.hero-float strong{display:block;font-size:14px;color:var(--c-ink)}
.hero-float span{font-size:12.5px;color:var(--c-muted)}

/* ---------- 下载条 ---------- */
.download-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);padding:28px;box-shadow:var(--sh-1);display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
.platforms{display:inline-flex;flex-wrap:wrap;gap:6px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:999px;padding:5px}
.platform{height:36px;padding:0 16px;border-radius:999px;font-size:13.5px;font-weight:600;color:var(--c-muted)}
.platform:hover{color:var(--c-primary-d)}
.platform.active{background:var(--c-primary);color:#fff}
.dl-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px;margin-top:22px}
.dl-meta div{min-width:0}
.dl-meta dt{font-size:12.5px;color:var(--c-muted)}
.dl-meta dd{font-size:14.5px;font-weight:600;color:var(--c-ink);word-break:break-all}
.qr{width:96px;text-align:center}
.qr-box{width:96px;height:96px;border-radius:var(--r-md);border:1px solid var(--c-line);background:
  repeating-linear-gradient(0deg,var(--c-ink) 0 6px,transparent 6px 12px),
  repeating-linear-gradient(90deg,var(--c-ink) 0 6px,transparent 6px 12px),
  #fff;
  background-blend-mode:multiply;opacity:.86}
.qr span{display:block;font-size:12px;color:var(--c-muted);margin-top:8px}

/* ---------- 轮播 ---------- */
.carousel-wrap{position:relative}
.carousel{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 20px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.carousel::-webkit-scrollbar{display:none}
.shot-card{flex:0 0 300px;scroll-snap-align:start;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:all var(--tr)}
.shot-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.shot-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg)}
.shot-thumb img{width:100%;height:100%;object-fit:cover}
.shot-body{padding:18px 20px 22px}
.shot-body h3{font-size:17px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.shot-body p{font-size:14.5px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.car-arrows{display:flex;gap:10px}
.car-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);display:grid;place-items:center;color:var(--c-ink);background:#fff;transition:all var(--tr)}
.car-btn:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:var(--c-primary-l)}
.dots{display:flex;gap:8px;justify-content:center;margin-top:6px}
.dot{width:8px;height:8px;border-radius:999px;background:#CBD8D3;transition:all var(--tr)}
.dot.active{width:20px;background:var(--c-primary)}

/* ---------- 能力区（非对称） ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:all var(--tr)}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.card--accent-top{position:relative;overflow:hidden}
.card--accent-top::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-primary)}
.cap-big{grid-column:span 7;padding:26px;display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:center}
.cap-big h3{font-size:20px;font-weight:600;color:var(--c-ink);margin-bottom:10px}
.cap-big p{font-size:15px;color:var(--c-text)}
.cap-big .shot-thumb{border-radius:var(--r-md)}
.cap-small{grid-column:span 5;padding:26px;display:flex;flex-direction:column;justify-content:center}
.icon-box{width:44px;height:44px;border-radius:12px;background:var(--c-primary-l);color:var(--c-primary-d);display:grid;place-items:center;margin-bottom:16px}
.cap-small h3{font-size:18px;font-weight:600;color:var(--c-ink);margin-bottom:10px}
.cap-small p{font-size:15px;color:var(--c-muted)}
.cap-wide{grid-column:span 12;padding:28px;display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:center}
.cap-wide h3{font-size:20px;font-weight:600;color:var(--c-ink);margin-bottom:14px}
.tick-list li{position:relative;padding-left:26px;font-size:15px;margin-bottom:10px;color:var(--c-text)}
.tick-list li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;background:var(--c-primary-l);border:2px solid var(--c-primary)}
.cap-wide .shot-thumb{border-radius:var(--r-md);aspect-ratio:4/3}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:all var(--tr)}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.news-card:hover .news-title{color:var(--c-primary-d)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14.5px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:12.5px;color:var(--c-muted);margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line)}
.empty-state{grid-column:1/-1;text-align:center;padding:52px 24px;border:1px dashed var(--c-line);border-radius:var(--r-lg);background:var(--c-surface);color:var(--c-muted)}
.empty-state .icon-box{margin:0 auto 16px}
.empty-state p{margin-bottom:18px}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.spec-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px 20px;transition:all var(--tr)}
.spec-card:hover{border-color:rgba(15,163,127,.4);box-shadow:var(--sh-2);transform:translateY(-3px)}
.spec-card h3{font-size:17px;font-weight:600;color:var(--c-ink);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.spec-card dl dt{font-size:12.5px;color:var(--c-muted);margin-top:12px}
.spec-card dl dd{font-size:14.5px;color:var(--c-text);font-weight:500}
.spec-card dl dt:first-child{margin-top:0}

/* ---------- 评价墙 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.review-col--mid{transform:translateY(24px)}
.review-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:all var(--tr);margin-bottom:24px}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;overflow:hidden;background:var(--c-primary-l);flex:none;display:grid;place-items:center;color:var(--c-primary-d);font-weight:700}
.review-head strong{display:block;font-size:15px;color:var(--c-ink)}
.review-head span{font-size:12.5px;color:var(--c-muted)}
.stars{display:flex;gap:3px;color:var(--c-accent);margin-bottom:12px}
.review-card p{font-size:14.5px;color:var(--c-text)}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;counter-reset:step}
.step{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 24px 24px}
.step-num{width:34px;height:34px;border-radius:50%;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:14px}
.step h3{font-size:17px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.step p{font-size:14.5px;color:var(--c-muted)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);margin-bottom:12px;overflow:hidden;transition:border-color var(--tr)}
.faq-item:hover{border-color:rgba(15,163,127,.3)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:18px 20px;font-size:17px;font-weight:600;color:var(--c-ink)}
.faq-q .plus{width:22px;height:22px;flex:none;position:relative;transition:transform var(--tr);color:var(--c-primary)}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%)}
.faq-q .plus::before{width:14px;height:2px}
.faq-q .plus::after{width:2px;height:14px}
.faq-item.open .plus{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--c-text)}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;background:var(--c-dark);color:#fff;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.14}
.cta-band .container{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;padding-top:56px;padding-bottom:56px;flex-wrap:wrap}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.3;color:#fff;margin-bottom:10px}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.74);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);font-size:14.5px}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-col h4{font-size:13px;letter-spacing:.06em;font-weight:700;color:#3FD3AB;text-transform:uppercase;margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text b{color:#3FD3AB}
.footer-brand p{margin-top:16px;max-width:320px;line-height:1.8}
.footer-col li{margin-bottom:12px}
.footer-col a{display:inline-block}
.footer-col a:hover{color:#3FD3AB;transform:translateX(2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.56)}
.to-top{display:inline-flex;align-items:center;gap:8px;color:#3FD3AB;font-size:13px}
.to-top:hover{color:#fff}
.footer-acc-toggle{display:none}

/* ---------- 返回顶部 ---------- */
.fab-top{position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;background:var(--c-primary);color:#fff;display:grid;place-items:center;box-shadow:0 12px 26px -12px rgba(11,122,95,.8);opacity:0;visibility:hidden;transform:translateY(10px);transition:all var(--tr);z-index:70}
.fab-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.fab-top:hover{background:var(--c-primary-d)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 20px}
  :root{--sp-section:72px}
  .hero h1{font-size:38px}
  .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .hero .container{grid-template-columns:1fr;gap:36px;min-height:auto;padding-top:44px;padding-bottom:44px}
  .hero-copy{max-width:none}
  .hero-float{display:none}
  .cap-big,.cap-small,.cap-wide{grid-column:span 12;grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .review-col--mid{transform:none}
  .steps{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .download-card{grid-template-columns:1fr}
  .qr{width:auto;display:flex;align-items:center;gap:14px}
  .qr span{margin-top:0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  :root{--sp-section:56px}
  .nav-top .container{height:auto;padding-top:12px;padding-bottom:12px;flex-wrap:wrap;gap:12px}
  .search{order:3;flex:1 0 100%;max-width:none}
  .logo-text{font-size:16px}
  .nav-dl{display:none}
  .hamburger{display:grid}
  .nav-cats .container{height:44px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-cta .btn{width:100%}
  .sec-head h2{font-size:24px}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:14px}
  .news-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:1fr}
  .shot-card{flex:0 0 260px}
  .car-arrows{display:none}
  .cta-band .container{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-main{grid-template-columns:1fr;gap:0;padding:32px 0 24px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.1)}
  .footer-col h4{display:flex;align-items:center;justify-content:space-between;margin:0;padding:16px 0;cursor:pointer}
  .footer-col ul{display:none;padding-bottom:14px}
  .footer-col.open ul{display:block}
  .footer-brand{border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:20px}
  .footer-acc-toggle{display:inline-flex;font-size:18px;line-height:1;color:#3FD3AB}
}
@media (max-width:559px){
  .hero h1{font-size:27px}
  .btn{height:44px;padding:0 18px}
  .btn--lg{height:48px}
  .announce p{white-space:nowrap;overflow-x:auto}
  .shot-card{flex:0 0 240px}
  .cap-big,.cap-small,.cap-wide{padding:20px}
  .dl-meta{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-primary:#0FA37F;
  --c-primary-d:#0B7A5F;
  --c-primary-l:#E6F6F0;
  --c-accent:#FF7A3D;
  --c-accent-d:#E8622A;
  --c-ink:#12211C;
  --c-text:#33463F;
  --c-muted:#6C7F79;
  --c-bg:#F6F8F6;
  --c-surface:#FFFFFF;
  --c-dark:#0D1F1A;
  --c-line:#E2E9E5;
  --c-focus:rgba(15,163,127,.35);
  --ok:#0FA37F;
  --warn:#D97706;
  --err:#DC2626;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,31,26,.04);
  --sh-2:0 10px 28px -12px rgba(13,31,26,.18);
  --sh-nav:0 4px 16px -8px rgba(13,31,26,.22);
  --ease:.22s cubic-bezier(.2,.7,.3,1);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  letter-spacing:.01em;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25;letter-spacing:.01em}
h1{font-size:44px;font-weight:800}
h2{font-size:30px}
h3{font-size:18px;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{flex:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
::selection{background:var(--c-primary-l);color:var(--c-primary-d)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--c-focus);outline-offset:2px;border-radius:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  transition:box-shadow var(--ease),transform var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px -8px rgba(15,163,127,.7)}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(15,163,127,.6)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px -8px rgba(255,122,61,.7)}
.btn-accent:hover{background:var(--c-accent-d);transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(255,122,61,.6)}
.btn-accent:active{transform:translateY(1px);box-shadow:none}
.btn-line{border:1px solid var(--c-primary);color:var(--c-primary-d);background:transparent}
.btn-line:hover{background:var(--c-primary-l);transform:translateY(-1px)}
.btn-line:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;border-radius:10px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:25px;padding:0 11px;
  border-radius:var(--r-pill);font-size:12.5px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-cat{background:var(--c-primary-l);color:var(--c-primary-d)}
.badge-ver{background:rgba(255,122,61,.12);color:var(--c-accent-d)}
.badge-soft{background:#EEF3F1;color:var(--c-muted);border-radius:4px;height:23px;padding:0 8px;font-weight:500}

/* ---------- 顶部公告 ---------- */
.announce{background:var(--c-primary-l);border-bottom:1px solid var(--c-line)}
.announce-inner{display:flex;align-items:center;gap:14px;min-height:36px;font-size:13px;color:var(--c-primary-d)}
.announce-inner .announce-text{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow-x:auto;scrollbar-width:none}
.announce-inner .announce-text::-webkit-scrollbar{display:none}
.announce-inner strong{font-weight:700}
.announce-close{margin-left:auto;display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:6px;color:var(--c-primary-d)}
.announce-close:hover{background:rgba(15,163,127,.14)}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.nav-top-inner{display:flex;align-items:center;gap:22px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;padding:6px 0}
.logo-mark{
  width:28px;height:28px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;box-shadow:0 6px 14px -8px rgba(15,163,127,.9);
}
.logo-text{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:.01em}
.logo-text b{color:var(--c-primary-d)}
.nav-search{
  position:relative;flex:1;max-width:560px;display:flex;align-items:center;
  height:44px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-bg);
  padding-left:16px;transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease),background-color var(--ease);
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px var(--c-focus);background:#fff;transform:scale(1.012)}
.nav-search svg{width:18px;height:18px;color:var(--c-muted)}
.nav-search input{
  flex:1;min-width:0;height:100%;border:none;background:transparent;outline:none;
  font-size:14.5px;padding:0 10px;color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-muted)}
.search-btn{
  margin:4px;height:36px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;transition:background-color var(--ease);
}
.search-btn:hover{background:var(--c-primary-d)}
.search-btn:active{transform:translateY(1px)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:none}
.nav-cta{height:42px;padding:0 20px;font-size:15px}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;color:var(--c-ink);background:#fff;
}
.hamburger:hover{border-color:var(--c-primary);color:var(--c-primary-d)}
.nav-cats{border-top:1px solid var(--c-line);background:#fff}
.nav-cats .container{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none}
.nav-cats .container::-webkit-scrollbar{display:none}
.cat-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:var(--c-text);white-space:nowrap;
  border:1px solid transparent;transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.cat-pill:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.cat-pill.active{background:var(--c-primary);color:#fff}
.cat-pill.active:hover{background:var(--c-primary-d);color:#fff}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,31,26,.4);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary-d)}
.drawer h5{font-size:13px;letter-spacing:.06em;color:var(--c-muted);font-weight:600;margin:18px 0 10px}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  display:flex;align-items:center;min-height:46px;padding:0 14px;border-radius:10px;
  font-size:15.5px;font-weight:600;color:var(--c-ink);border:1px solid transparent;
}
.drawer-links a:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.drawer-links a.active{background:var(--c-primary);color:#fff}
.drawer .nav-search{max-width:none;margin-top:6px}

/* ---------- 主体 ---------- */
main{display:block;padding-bottom:var(--sp-section)}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);padding:26px 0 20px;
}
.breadcrumb a{color:var(--c-muted);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--c-primary-d)}
.breadcrumb .sep{opacity:.6}
.breadcrumb .crumb-title{
  max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--c-text);
}

.article-head{max-width:860px}
.article-head h1{font-size:40px;line-height:1.3;margin-bottom:18px}
.article-meta{display:flex;align-items:center;gap:10px 18px;flex-wrap:wrap;font-size:12.5px;color:var(--c-muted)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-item svg{width:14px;height:14px}
.article-meta .meta-item b{color:var(--c-text);font-weight:600}

.divider{height:1px;background:linear-gradient(90deg,rgba(226,233,229,0) 0%,var(--c-line) 12%,var(--c-line) 88%,rgba(226,233,229,0) 100%);margin:32px 0}

.summary-block{
  position:relative;max-width:860px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:22px 24px 22px 30px;box-shadow:var(--sh-1);
}
.summary-block::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;background:var(--c-primary)}
.summary-block p{font-size:15px;line-height:1.9;color:var(--c-text)}

.article-layout{margin-top:40px}
.article-layout-inner{display:block}
.article-gallery{margin:0 0 34px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);background:#fff;box-shadow:var(--sh-1)}
.article-gallery img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-gallery figcaption{font-size:13px;color:var(--c-muted);text-align:center;padding:12px 16px}

.article-body{max-width:780px;font-size:17px;line-height:1.9;color:var(--c-text)}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  position:relative;font-size:26px;font-weight:700;color:var(--c-ink);
  padding-left:16px;margin-top:2em;line-height:1.35;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:18px;border-radius:3px;background:var(--c-primary)}
.article-body h3{font-size:19px;font-weight:600;color:var(--c-ink);margin-top:1.8em}
.article-body p{color:var(--c-text)}
.article-body a{color:var(--c-primary-d);border-bottom:1px solid rgba(15,163,127,.35);transition:border-color var(--ease),color var(--ease)}
.article-body a:hover{color:var(--c-primary);border-color:var(--c-primary)}
.article-body strong{color:var(--c-ink);font-weight:700}
.article-body ul,.article-body ol{padding-left:1.4em;list-style:revert}
.article-body li{margin:8px 0;padding-left:2px}
.article-body li::marker{color:var(--c-primary)}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:rgba(15,163,127,.06);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-text);
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--r-md);margin:1.4em auto;box-shadow:var(--sh-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  font-size:.92em;background:#EDF2F0;border-radius:4px;padding:2px 6px;color:var(--c-primary-d);
}
.article-body pre{
  background:rgba(13,31,26,.06);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:16px 18px;overflow-x:auto;
}
.article-body pre code{background:none;padding:0;color:var(--c-ink);font-size:14px;line-height:1.75}
.article-body table{width:100%;border-collapse:collapse;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-primary-l);color:var(--c-primary-d);font-weight:600}
.article-body hr{border:none;height:1px;background:var(--c-line);margin:2em 0}

.toc{display:none}
.toc-inner{position:sticky;top:140px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:18px 18px 16px;box-shadow:var(--sh-1)}
.toc h4{font-size:13px;letter-spacing:.06em;color:var(--c-muted);font-weight:600;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto}
.toc-link{
  position:relative;display:block;font-size:13.5px;color:var(--c-muted);padding:6px 8px 6px 12px;border-radius:8px;
  transition:color var(--ease),background-color var(--ease);
}
.toc-link::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;background:transparent}
.toc-link:hover{color:var(--c-primary-d);background:var(--c-primary-l)}
.toc-link.is-active{color:var(--c-primary-d);font-weight:700}
.toc-link.is-active::before{background:var(--c-primary)}
.toc-link-sub{padding-left:24px;font-size:13px}

.empty-state{
  border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;box-shadow:var(--sh-1);max-width:780px;
}
.empty-state svg{width:44px;height:44px;color:var(--c-muted);margin:0 auto 16px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:22px}

.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:38px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-l);color:var(--c-primary-d);font-size:13px;font-weight:600;
  transition:background-color var(--ease),color var(--ease);
}
.tag:hover{background:var(--c-primary);color:#fff}
.share-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:22px;padding-top:22px;border-top:1px solid var(--c-line)}
.share-row .share-label{font-size:13px;color:var(--c-muted)}
.share-btn{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 16px;border-radius:10px;
  border:1px solid var(--c-line);font-size:13.5px;font-weight:600;color:var(--c-text);background:#fff;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.share-btn svg{width:15px;height:15px}
.share-btn:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:var(--c-primary-l)}
.share-btn.is-done{border-color:var(--c-primary);color:var(--c-primary-d);background:var(--c-primary-l)}

.section{margin-top:var(--sp-section)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:28px}
.section-head .section-sub{font-size:14px;color:var(--c-muted);margin-top:8px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary-d);white-space:nowrap}
.link-more svg{width:15px;height:15px;transition:transform var(--ease)}
.link-more:hover svg{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(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.post-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#CFE3DA}
.post-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9EFEC}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .thumb .badge{position:absolute;left:12px;top:12px}
.post-card .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-card h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.post-card:hover h3{color:var(--c-primary-d)}
.post-card .excerpt{
  font-size:14px;color:var(--c-muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .card-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--c-muted)}

.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:44px;font-size:14.5px;font-weight:600;color:var(--c-primary-d)}
.back-link svg{width:16px;height:16px;transition:transform var(--ease)}
.back-link:hover svg{transform:translateX(-4px)}

/* ---------- CTA 带 ---------- */
.cta-band{margin-top:var(--sp-section);background:var(--c-dark);position:relative;overflow:hidden;border-radius:0}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.08;
  background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;
}
.cta-band .cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none}
.cta-actions .btn-line{border-color:rgba(255,255,255,.4);color:#fff}
.cta-actions .btn-line:hover{background:rgba(255,255,255,.12)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text b{color:#3FD3AB}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:330px}
.footer-col h4{font-size:13px;letter-spacing:.06em;color:#3FD3AB;font-weight:600;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color var(--ease),transform var(--ease)}
.footer-col a:hover{color:#3FD3AB;transform:translateX(2px)}
.footer-acc-toggle{display:none;color:rgba(255,255,255,.5);font-size:16px;line-height:1}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom span:last-of-type{margin-right:auto}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.75);padding:8px 12px;border-radius:8px;border:1px solid rgba(255,255,255,.18);transition:color var(--ease),border-color var(--ease)}
.to-top:hover{color:#3FD3AB;border-color:#3FD3AB}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sp-section:72px}
  .container{padding:0 20px}
  h1{font-size:38px}
  .article-head h1{font-size:34px}
  .cta-band .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
}
@media (min-width:1280px){
  .article-layout-inner{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:48px;align-items:start}
  .toc{display:block}
}
@media (max-width:1023px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .nav-cta{display:none}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  h1{font-size:30px}
  h2{font-size:24px}
  .article-head h1{font-size:27px}
  .article-body{font-size:16.5px}
  .nav-top-inner{flex-wrap:wrap;gap:12px;padding:12px 0}
  .nav-search{order:3;flex-basis:100%;max-width:none;margin-bottom:2px;transform:none}
  .nav-search:focus-within{transform:none}
  .nav-actions{margin-left:auto}
  .hamburger{display:inline-flex}
  .nav-cats .container{height:46px}
  .article-meta{gap:8px 14px}
  .breadcrumb .crumb-title{max-width:200px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .footer-main{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.1);padding:16px 0}
  .footer-col h4{margin-bottom:0;cursor:pointer}
  .footer-acc-toggle{display:block}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;gap:0}
  .footer-col.is-open ul{max-height:320px;padding-top:14px}
  .footer-brand{border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:20px}
  .footer-brand h4,.footer-brand .footer-acc-toggle{display:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-bottom span:last-of-type{margin-right:0}
  .btn{height:44px;padding:0 20px;font-size:15px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .summary-block{padding:20px 18px 20px 24px}
  .empty-state{padding:36px 20px}
}
@media (max-width:559px){
  .container{padding:0 16px}
  .article-body h2{font-size:22px}
  .article-body{padding-right:0}
}

/* roulang page: category1 */
:root{
  --c-primary:#0FA37F;
  --c-primary-d:#0B7A5F;
  --c-primary-l:#E6F6F0;
  --c-accent:#FF7A3D;
  --c-accent-d:#E8622A;
  --c-ink:#12211C;
  --c-text:#33463F;
  --c-muted:#6C7F79;
  --c-bg:#F6F8F6;
  --c-surface:#FFFFFF;
  --c-dark:#0D1F1A;
  --c-line:#E2E9E5;
  --c-focus:rgba(15,163,127,.35);
  --c-warn:#D97706;
  --c-error:#DC2626;
  --r-xs:4px;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(13,31,26,.04);
  --sh-2:0 10px 28px -12px rgba(13,31,26,.18);
  --sh-3:0 0 4px 16px -8px rgba(13,31,26,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
}
*,*::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","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary-d);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;letter-spacing:.01em;}
h1{font-weight:800;}
h2{font-weight:700;}
h3{font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
svg{flex:none;}
:focus-visible{outline:3px solid var(--c-focus);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 顶部公告条 ============ */
.topbar{
  background:var(--c-primary-l);
  border-bottom:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-primary-d);
}
.topbar .container{
  display:flex;align-items:center;gap:12px;
  height:36px;
}
.topbar p{
  flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  display:flex;align-items:center;gap:8px;
}
.topbar .dot{
  width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex:none;
}
.topbar a{color:var(--c-primary-d);font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.topbar-close{
  width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-primary-d);
  transition:background .2s var(--ease);
}
.topbar-close:hover{background:rgba(15,163,127,.14);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 4px 16px -8px rgba(13,31,26,.28);}
.nav-main-inner{
  display:flex;align-items:center;gap:20px;
  min-height:68px;
  padding-top:10px;padding-bottom:10px;
  flex-wrap:wrap;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:var(--c-ink);
  letter-spacing:.01em;white-space:nowrap;
}
.logo:hover{color:var(--c-ink);}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-d));
  color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 4px 10px -4px rgba(11,122,95,.6);
}
.logo-text b{color:var(--c-primary-d);}
.logo-text span{color:var(--c-ink);}

.search-box{
  position:relative;
  flex:1 1 260px;
  max-width:560px;
  display:flex;align-items:center;gap:8px;
  height:44px;
  padding:0 6px 0 14px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:999px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box svg{color:var(--c-muted);}
.search-box input{
  flex:1;min-width:0;
  border:none;background:transparent;outline:none;
  font-size:14.5px;color:var(--c-ink);
  height:100%;
}
.search-box input::placeholder{color:#9AA9A3;}
.search-box:focus-within{
  border-color:var(--c-primary);
  background:var(--c-surface);
  box-shadow:0 0 0 3px var(--c-focus);
}
.search-btn{
  height:36px;padding:0 18px;
  border-radius:999px;
  background:var(--c-primary);
  color:#fff;font-size:14px;font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{background:var(--c-primary-d);}
.search-btn:active{transform:translateY(1px);}

.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.hamburger{
  width:44px;height:44px;border-radius:12px;
  display:none;align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  color:var(--c-ink);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.hamburger:hover{background:var(--c-primary-l);border-color:var(--c-primary);}

.nav-cats{
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
}
.nav-cats .container{
  display:flex;align-items:center;gap:8px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-cats .container::-webkit-scrollbar{display:none;}
.cat-pill{
  flex:none;
  display:inline-flex;align-items:center;
  height:32px;padding:0 15px;
  border-radius:999px;
  font-size:14px;font-weight:500;color:var(--c-text);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.cat-pill:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.cat-pill.active{
  background:var(--c-primary);
  color:#fff;
  font-weight:600;
  box-shadow:0 6px 14px -8px rgba(15,163,127,.9);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:999px;
  font-size:15.5px;font-weight:600;
  text-align:center;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(232,98,42,.95);
}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(232,98,42,.95);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-secondary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(11,122,95,.95);
}
.btn-secondary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(11,122,95,.95);}
.btn-secondary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  border:1px solid var(--c-primary);
  color:var(--c-primary-d);
  background:transparent;
}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:999px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:25px;padding:0 11px;
  border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:var(--c-primary-l);color:var(--c-primary-d);
  white-space:nowrap;
}
.badge-accent{background:rgba(255,122,61,.12);color:var(--c-accent-d);}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border:1px solid var(--c-line);
  border-radius:999px;
  font-size:12.5px;color:var(--c-muted);
  background:var(--c-surface);
}
.stamp{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--r-xs);
  padding:2px 8px;
  font-size:12.5px;
  background:var(--c-primary-l);
  color:var(--c-primary-d);
  font-weight:600;
}
.stamp-accent{background:rgba(255,122,61,.12);color:var(--c-accent-d);}

/* ============ 面包屑 ============ */
.crumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--c-muted);
}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"";width:5px;height:5px;border-radius:50%;background:#C3D0CA;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary-d);}
.crumb .current{color:var(--c-text);font-weight:600;}

/* ============ 页头 ============ */
main{display:block;}
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:34px;}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--c-muted);font-size:15.5px;}
.divider{
  height:1px;border:none;margin:0;
  background:linear-gradient(90deg,transparent,var(--c-line) 18%,var(--c-line) 82%,transparent);
}
.page-head{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:44px;
  align-items:center;
  padding:34px 0 8px;
}
.page-head h1{
  font-size:44px;
  line-height:1.2;
  margin-bottom:16px;
}
.page-head h1 em{
  font-style:normal;
  color:var(--c-primary-d);
}
.page-head .lead{
  font-size:17px;
  color:var(--c-text);
  margin-bottom:22px;
  max-width:560px;
}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;}
.media-frame{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
  background:var(--c-surface);
  aspect-ratio:16/9;
}
.media-frame img{width:100%;height:100%;object-fit:cover;}

/* ============ 卡片基础 ============ */
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.card-hover:hover{
  box-shadow:var(--sh-2);
  transform:translateY(-3px);
  border-color:#D3E2DB;
}
.card-top-line{position:relative;overflow:hidden;}
.card-top-line::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-primary-d));
}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:15px;color:var(--c-text);}
.card-icon{
  width:42px;height:42px;border-radius:12px;
  background:var(--c-primary-l);color:var(--c-primary-d);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}

/* ============ 简介段 ============ */
.intro{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  padding:32px;
  box-shadow:var(--sh-1);
}
.intro p+p{margin-top:14px;}
.intro .facts{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:20px;
  padding-top:20px;
  border-top:1px dashed var(--c-line);
}

/* ============ 要点卡组（非等宽） ============ */
.point-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  margin-top:28px;
}
.point-card{grid-column:span 4;display:flex;flex-direction:column;}
.point-card.wide{grid-column:span 8;}
.point-card ul{margin-top:14px;display:grid;gap:10px;}
.point-card ul li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--c-text);
}
.point-card ul li::before{
  content:"";flex:none;margin-top:8px;
  width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);
}

/* ============ 图文块（交替） ============ */
.split{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:48px;
  align-items:center;
}
.split + .split{margin-top:64px;}
.split.reverse .split-media{order:-1;}
.split-body h3{font-size:22px;margin-bottom:14px;}
.split-body p{font-size:15.5px;}
.split-body p+p{margin-top:12px;}
.split-list{margin-top:20px;display:grid;gap:12px;}
.split-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  font-size:14.5px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.split-list li:hover{border-color:rgba(15,163,127,.4);box-shadow:var(--sh-1);}
.split-list .num{
  flex:none;width:24px;height:24px;border-radius:8px;
  background:var(--c-primary-l);color:var(--c-primary-d);
  font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.split-media{
  border-radius:var(--r-xl);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
  background:var(--c-surface);
  aspect-ratio:16/10;
}
.split-media img{width:100%;height:100%;object-fit:cover;}

/* ============ 规格卡 ============ */
.spec-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:30px;
}
.spec-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.spec-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.spec-card h3{
  font-size:16px;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
  padding-bottom:12px;border-bottom:1px solid var(--c-line);
}
.spec-card dl{margin:0;display:grid;gap:10px;}
.spec-row{display:grid;grid-template-columns:88px 1fr;gap:10px;font-size:13.5px;}
.spec-row dt{color:var(--c-muted);}
.spec-row dd{margin:0;color:var(--c-ink);font-variant-numeric:tabular-nums;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(15,163,127,.4);}
.faq-item.open{box-shadow:var(--sh-1);border-color:rgba(15,163,127,.45);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  font-size:17px;font-weight:600;color:var(--c-ink);text-align:left;
  min-height:44px;
}
.faq-q .pm{
  flex:none;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-l);color:var(--c-primary-d);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .28s var(--ease),background .2s var(--ease);
}
.faq-item.open .faq-q .pm{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a-inner{
  padding:0 20px 20px;
  font-size:15px;color:var(--c-text);
  line-height:1.85;
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  background:var(--c-dark);
  color:#DCE7E2;
  border-radius:var(--r-xl);
  overflow:hidden;
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.14;
}
.cta-band>*{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-band p{color:#B9CCC5;font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

.back-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--c-primary-d);
  margin-top:26px;
}
.back-link:hover{gap:12px;color:var(--c-primary);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-dark);
  color:#B9CCC5;
  margin-top:72px;
  padding-top:56px;
  font-size:14px;
}
.footer-main{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-text span{color:#fff;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:#9FB4AC;}
.footer-col h4{
  font-size:13px;
  letter-spacing:.06em;
  color:#3FD3AB;
  margin-bottom:16px;
  display:flex;align-items:center;justify-content:space-between;
}
.footer-acc-toggle{display:none;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  color:#B9CCC5;
  font-size:13.5px;
  display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:#3FD3AB;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:12.5px;color:#8399 91;
  color:#839991;
}
.footer-bottom span{font-size:12.5px;}
.to-top{
  margin-left:auto;
  display:inline-flex;align-items:center;gap:6px;
  color:#3FD3AB;font-size:12.5px;font-weight:600;
  border:1px solid rgba(63,211,171,.4);
  border-radius:999px;
  padding:6px 14px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.to-top:hover{background:rgba(63,211,171,.14);color:#3FD3AB;}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:80;
  background:rgba(13,31,26,.4);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:84vw;max-width:340px;
  background:var(--c-surface);
  box-shadow:-12px 0 32px -18px rgba(13,31,26,.5);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  padding:20px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;border-bottom:1px solid var(--c-line);
  margin-bottom:16px;
}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);color:var(--c-ink);
}
.drawer-close:hover{background:var(--c-primary-l);}
.drawer-title{font-size:13px;color:var(--c-muted);font-weight:600;letter-spacing:.06em;}
.drawer-list{display:grid;gap:8px;margin-bottom:18px;}
.drawer-list a{
  display:flex;align-items:center;
  min-height:46px;padding:0 14px;
  border-radius:var(--r-md);
  font-size:15px;color:var(--c-text);
  border:1px solid var(--c-line);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.drawer-list a:hover{background:var(--c-primary-l);color:var(--c-primary-d);border-color:rgba(15,163,127,.35);}
.drawer-list a.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);font-weight:600;}
.drawer-search{
  display:flex;align-items:center;gap:8px;
  height:46px;padding:0 6px 0 14px;
  border:1px solid var(--c-line);border-radius:999px;
  background:var(--c-bg);
  margin-bottom:18px;
}
.drawer-search input{flex:1;min-width:0;border:none;background:transparent;outline:none;font-size:14.5px;}
.drawer-search svg{color:var(--c-muted);}

/* ============ 进场动画 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 20px;}
  .section{padding:60px 0;}
  .page-head{grid-template-columns:1fr;gap:28px;padding-top:24px;}
  .page-head h1{font-size:34px;}
  .point-card{grid-column:span 6;}
  .point-card.wide{grid-column:span 12;}
  .spec-grid{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:48px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .search-box{max-width:100%;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .section-head h2{font-size:24px;}
  .nav-main-inner{gap:12px;padding-top:10px;padding-bottom:6px;}
  .search-box{order:3;flex:1 1 100%;margin-bottom:8px;}
  .nav-actions .btn{display:none;}
  .hamburger{display:inline-flex;}
  .nav-cats .container{height:44px;gap:6px;}
  .cat-pill{height:30px;padding:0 13px;font-size:13.5px;}
  .page-head h1{font-size:30px;}
  .point-card,.point-card.wide{grid-column:span 12;}
  .spec-grid{grid-template-columns:1fr;}
  .intro{padding:22px;}
  .card{padding:20px;}
  .faq-q{font-size:16px;padding:16px;}
  .footer-main{grid-template-columns:1fr;gap:0;}
  .footer-col{border-top:1px solid rgba(255,255,255,.09);}
  .footer-col h4{margin:0;padding:16px 0;cursor:pointer;}
  .footer-acc-toggle{display:inline-flex;font-size:16px;color:#3FD3AB;transition:transform .26s var(--ease);}
  .footer-col.open .footer-acc-toggle{transform:rotate(45deg);}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
  .footer-col.open ul{max-height:260px;padding-bottom:16px;}
  .footer-brand{border-top:none;padding-bottom:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{margin-left:0;}
}
@media (max-width:559px){
  .page-head h1{font-size:28px;}
  .split-body h3{font-size:19px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-band{padding:28px 20px;}
  .search-btn{padding:0 14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0FA37F;
  --c-primary-d:#0B7A5F;
  --c-primary-l:#E6F6F0;
  --c-accent:#FF7A3D;
  --c-accent-d:#E8622A;
  --c-ink:#12211C;
  --c-text:#33463F;
  --c-muted:#6C7F79;
  --c-bg:#F6F8F6;
  --c-surface:#FFFFFF;
  --c-dark:#0D1F1A;
  --c-line:#E2E9E5;
  --c-focus:rgba(15,163,127,.35);
  --r-xs:4px; --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:20px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,31,26,.04);
  --sh-2:0 10px 28px -12px rgba(13,31,26,.18);
  --sh-nav:0 4px 16px -8px rgba(13,31,26,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
  --sec:88px;
  --wrap:1200px;
}
*,*::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","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary-d);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;letter-spacing:.01em}
h1{font-size:44px;font-weight:800}
h2{font-size:30px;font-weight:700}
h3{font-size:18px;font-weight:600}
p{margin:0}
figure{margin:0}
:focus-visible{outline:3px solid var(--c-focus);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- Topbar ---------- */
.topbar{background:var(--c-primary-l);border-bottom:1px solid var(--c-line);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding:6px 24px;max-width:var(--wrap);margin:0 auto}
.topbar p{color:var(--c-primary-d);display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-close{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;color:var(--c-primary-d);flex:none;transition:background .2s var(--ease)}
.topbar-close:hover{background:rgba(15,163,127,.14)}
.topbar.is-hidden{display:none}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .25s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.nav-main-inner{display:flex;align-items:center;gap:20px;min-height:68px;padding-top:10px;padding-bottom:10px}
.logo{display:flex;align-items:center;gap:10px;flex:none;color:var(--c-ink)}
.logo-mark{width:28px;height:28px;border-radius:9px;background:var(--c-primary);color:#fff;display:grid;place-items:center;flex:none}
.logo-text{font-size:17px;font-weight:500;letter-spacing:.01em;white-space:nowrap}
.logo-text b{font-weight:800;color:var(--c-primary-d)}
.nav-search{flex:1;max-width:560px;display:flex;align-items:center;gap:8px;height:44px;padding:0 6px 0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg);transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease)}
.nav-search:hover{border-color:#c9d8d2}
.nav-search:focus-within{background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 4px var(--c-focus)}
.nav-search svg{flex:none;color:var(--c-muted)}
.nav-search input{flex:1;min-width:0;border:none;background:transparent;font-size:14.5px;color:var(--c-ink);outline:none}
.nav-search input::placeholder{color:var(--c-muted)}
.nav-search button{height:34px;padding:0 16px;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;flex:none;transition:filter .2s var(--ease),transform .2s var(--ease)}
.nav-search button:hover{filter:brightness(.94)}
.nav-search button:active{transform:translateY(1px)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none}
.hamburger{width:44px;height:44px;border-radius:var(--r-md);display:none;place-items:center;color:var(--c-ink);border:1px solid var(--c-line)}
.hamburger:hover{background:var(--c-primary-l)}

.nav-cats{border-top:1px solid var(--c-line);background:var(--c-surface)}
.nav-cats .container{display:flex;gap:8px;align-items:center;min-height:48px;overflow-x:auto;scrollbar-width:none}
.nav-cats .container::-webkit-scrollbar{display:none}
.cat-pill{flex:none;padding:6px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--c-text);border:1px solid transparent;transition:all .2s var(--ease);white-space:nowrap}
.cat-pill:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.cat-pill.active{background:var(--c-primary);color:#fff;font-weight:600;border-color:var(--c-primary)}
.cat-pill.active:hover{background:var(--c-primary-d);color:#fff}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;transition:filter .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);border:1px solid transparent}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 18px -10px rgba(232,98,42,.8)}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;filter:brightness(1);transform:translateY(-1px)}
.btn-secondary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -12px rgba(11,122,95,.85)}
.btn-secondary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary-d);background:transparent}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-md)}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------- Badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;white-space:nowrap}
.badge-cat{background:var(--c-primary-l);color:var(--c-primary-d)}
.badge-ver{background:rgba(255,122,61,.12);color:var(--c-accent-d)}
.badge-line{background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-muted);font-weight:500}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- Page head ---------- */
.page-head{position:relative;padding:40px 0 64px;background:var(--c-surface);border-bottom:1px solid var(--c-line);overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;opacity:.06;pointer-events:none}
.page-head .container{position:relative}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary-d)}
.crumb .sep{color:#b6c6c0}
.page-head-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.page-head h1{max-width:14em}
.page-head .lead{margin-top:16px;font-size:16.5px;color:var(--c-text);max-width:34em}
.head-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
.page-head-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-2);aspect-ratio:16/9}
.page-head-media img{width:100%;height:100%;object-fit:cover}

/* ---------- Section shell ---------- */
.section{padding:var(--sec) 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--c-muted);font-size:15.5px}
.hairline{height:1px;background:linear-gradient(90deg,transparent,var(--c-line) 18%,var(--c-line) 82%,transparent)}

/* ---------- Cards ---------- */
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease)}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.card-top-accent{border-top:3px solid var(--c-primary)}
.icon-box{width:44px;height:44px;border-radius:var(--r-md);background:var(--c-primary-l);color:var(--c-primary-d);display:grid;place-items:center;margin-bottom:16px;flex:none}
.card h3{margin-bottom:10px}
.card p{font-size:15px;color:var(--c-text)}
.card .muted{color:var(--c-muted);font-size:13.5px}

.entry-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.entry-grid .col-a{grid-column:span 5}
.entry-grid .col-b{grid-column:span 4}
.entry-grid .col-c{grid-column:span 3}
.point-list{margin-top:14px;display:grid;gap:8px}
.point-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text)}
.point-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-top:11px;flex:none}

/* ---------- Steps ---------- */
.steps{display:grid;gap:0;max-width:840px;margin:0 auto}
.step{position:relative;display:grid;grid-template-columns:56px 1fr;gap:22px;padding-bottom:32px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:27px;top:52px;bottom:4px;width:2px;background:linear-gradient(180deg,var(--c-primary) 0%,var(--c-line) 100%)}
.step:last-child::before{display:none}
.step-num{width:56px;height:56px;border-radius:50%;background:var(--c-surface);border:2px solid var(--c-primary);color:var(--c-primary-d);display:grid;place-items:center;font-weight:800;font-size:18px;font-variant-numeric:tabular-nums;z-index:1;transition:background .22s var(--ease),color .22s var(--ease)}
.step:hover .step-num{background:var(--c-primary);color:#fff}
.step-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease)}
.step:hover .step-body{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#cfe4dc}
.step-body h3{margin-bottom:8px}
.step-body p{font-size:15px}

/* ---------- Split block ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-2);aspect-ratio:16/10}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-text h2{margin-bottom:16px}
.split-text p+p{margin-top:14px}

/* ---------- Spec list ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:32px}
.spec-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease)}
.spec-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.spec-card h3{margin-bottom:14px;display:flex;align-items:center;gap:10px}
.spec-card dl{margin:0;display:grid;gap:10px}
.spec-card dt{font-size:12.5px;color:var(--c-muted)}
.spec-card dd{margin:0;font-size:14.5px;color:var(--c-ink);font-weight:500;font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease)}
.faq-item:hover{border-color:rgba(15,163,127,.4)}
.faq-item.is-open{border-color:var(--c-primary);box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:20px 22px;font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5}
.faq-q .faq-icon{width:26px;height:26px;border-radius:50%;background:var(--c-primary-l);color:var(--c-primary-d);display:grid;place-items:center;flex:none;transition:transform .28s var(--ease),background .22s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a-inner{padding:0 22px 22px;font-size:15px;color:var(--c-text);line-height:1.85}

/* ---------- CTA band ---------- */
.cta-band{position:relative;background:var(--c-dark);color:#fff;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center;opacity:.14;pointer-events:none}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr auto;gap:32px;align-items:center;padding:56px 0}
.cta-inner h2{color:#fff;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:44em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- Back home ---------- */
.back-home{max-width:var(--wrap);margin:0 auto;padding:36px 24px 0}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:var(--c-primary-d);font-weight:600}
.back-link:hover{gap:12px}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);margin-top:0}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-col h4{font-size:13px;letter-spacing:.06em;color:#3FD3AB;margin-bottom:18px;display:flex;align-items:center;justify-content:space-between}
.footer-acc-toggle{display:none}
.footer-brand .logo{margin-bottom:16px;color:#fff}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text b{color:#3FD3AB}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:32em}
.footer-col ul{display:grid;gap:12px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col ul a:hover{color:#3FD3AB;transform:translateX(2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 32px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.5)}
.footer-bottom .to-top{margin-left:auto;display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.72);font-size:13px}
.footer-bottom .to-top:hover{color:#3FD3AB}

/* ---------- Drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(13,31,26,.45);opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:var(--c-surface);z-index:90;transform:translateX(102%);transition:transform .32s var(--ease);padding:22px;overflow-y:auto;display:flex;flex-direction:column;gap:22px}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--c-line);display:grid;place-items:center;color:var(--c-ink)}
.drawer-close:hover{background:var(--c-primary-l)}
.drawer-nav{display:grid;gap:6px}
.drawer-nav a{padding:13px 14px;border-radius:var(--r-md);font-size:15px;color:var(--c-text);min-height:44px;display:flex;align-items:center}
.drawer-nav a:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.drawer-nav a.active{background:var(--c-primary);color:#fff;font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 6px 0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg)}
.drawer-search input{flex:1;min-width:0;border:none;background:transparent;outline:none;font-size:14.5px}
.drawer-search svg{color:var(--c-muted);flex:none}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  :root{--sec:80px;--gap:20px}
  .container{padding:0 20px}
  .topbar-inner{padding:6px 20px}
}
@media (max-width:1023px){
  :root{--sec:72px}
  h1{font-size:36px}
  h2{font-size:26px}
  .page-head-grid{grid-template-columns:1fr;gap:32px}
  .page-head-media{order:-1;aspect-ratio:16/9}
  .entry-grid .col-a{grid-column:span 6}
  .entry-grid .col-b{grid-column:span 6}
  .entry-grid .col-c{grid-column:span 12}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;padding:48px 0}
}
@media (max-width:767px){
  :root{--sec:56px}
  .nav-main-inner{flex-wrap:wrap;gap:12px;min-height:auto;padding-top:12px;padding-bottom:12px}
  .nav-search{order:3;flex-basis:100%;max-width:none}
  .hamburger{display:grid}
  .nav-actions .btn{display:none}
  .nav-cats .container{min-height:44px}
  h1{font-size:30px}
  h2{font-size:24px}
  .page-head{padding:24px 0 40px}
  .entry-grid .col-a,.entry-grid .col-b{grid-column:span 12}
  .spec-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:0;padding:36px 0 24px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.1);padding:16px 0}
  .footer-col h4{margin-bottom:0;cursor:pointer}
  .footer-acc-toggle{display:block;font-size:16px;font-weight:400;transition:transform .25s var(--ease)}
  .footer-col.is-open .footer-acc-toggle{transform:rotate(45deg)}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);gap:0}
  .footer-col.is-open ul{max-height:280px;padding-top:14px}
  .footer-col ul li{padding:6px 0}
  .footer-brand{padding-bottom:20px}
  .footer-brand p{margin-top:6px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-bottom .to-top{margin-left:0}
  .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .step{grid-template-columns:44px 1fr;gap:16px}
  .step-num{width:44px;height:44px;font-size:16px}
  .step::before{left:21px;top:44px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .topbar-inner{padding:6px 16px}
  .card{padding:20px}
  .badge{font-size:12px;height:24px;padding:0 10px}
}

/* roulang page: category3 */
:root{
  --c-primary:#0FA37F;
  --c-primary-d:#0B7A5F;
  --c-primary-l:#E6F6F0;
  --c-accent:#FF7A3D;
  --c-accent-d:#E8622A;
  --c-ink:#12211C;
  --c-text:#33463F;
  --c-muted:#6C7F79;
  --c-bg:#F6F8F6;
  --c-surface:#FFFFFF;
  --c-dark:#0D1F1A;
  --c-line:#E2E9E5;
  --c-focus:rgba(15,163,127,.35);
  --c-warn:#D97706;
  --c-error:#DC2626;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,31,26,.04);
  --sh-2:0 10px 28px -12px rgba(13,31,26,.18);
  --sp-block:88px;
  --container:1200px;
  --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","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary-d);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--c-primary);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;letter-spacing:.01em;}
p{margin:0;}
svg{flex-shrink:0;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:3px solid var(--c-focus);outline-offset:2px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
@media (max-width:1279px){.container{padding:0 20px;}}
@media (max-width:767px){.container{padding:0 16px;}}

/* ---------- 顶部公告条 ---------- */
.topbar{
  background:var(--c-primary-l);
  border-bottom:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-primary-d);
}
.topbar .container{
  height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-msg{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-close{
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-primary-d);transition:background .2s var(--ease);
}
.topbar-close:hover{background:rgba(15,163,127,.14);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(1.2) blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 4px 16px -8px rgba(13,31,26,.28);}
.nav-top{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  min-height:68px;padding:12px 0;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px -8px rgba(15,163,127,.9);
}
.logo-text{font-size:18px;font-weight:800;color:var(--c-ink);letter-spacing:.02em;}
.logo-text b{color:var(--c-primary-d);}
.nav-search{
  position:relative;flex:1 1 320px;max-width:560px;
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 6px 0 16px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.nav-search:focus-within{
  background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 4px var(--c-focus);
}
.nav-search svg{color:var(--c-muted);}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14.5px;color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-muted);}
.search-btn{
  height:36px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:filter .2s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{filter:brightness(.94);}
.search-btn:active{transform:translateY(1px);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  font-weight:600;font-size:15px;
  transition:filter .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;height:48px;padding:0 28px;box-shadow:0 8px 18px -10px rgba(255,122,61,.9);}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(255,122,61,.95);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{background:var(--c-primary);color:#fff;height:48px;padding:0 24px;}
.btn-secondary:hover{filter:brightness(.94);transform:translateY(-1px);color:#fff;}
.btn-outline{
  background:transparent;color:var(--c-primary-d);
  border:1px solid var(--c-primary);height:44px;padding:0 22px;
}
.btn-outline:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none!important;}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);
  align-items:center;justify-content:center;color:var(--c-ink);
  background:#fff;
}
.burger:hover{border-color:var(--c-primary);color:var(--c-primary-d);}
.nav-cats{border-top:1px solid var(--c-line);}
.nav-cats .container{
  display:flex;align-items:center;gap:8px;height:48px;
  overflow-x:auto;scrollbar-width:none;
}
.nav-cats .container::-webkit-scrollbar{display:none;}
.cat-pill{
  display:inline-flex;align-items:center;
  height:32px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--c-text);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.cat-pill:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.cat-pill.active{background:var(--c-primary);color:#fff;font-weight:600;}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,31,26,.4);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
  z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;
  background:#fff;z-index:90;padding:20px;
  transform:translateX(102%);transition:transform .3s var(--ease);
  overflow-y:auto;
  display:flex;flex-direction:column;gap:18px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink);
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary-d);}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:var(--r-md);
  color:var(--c-ink);font-weight:500;border:1px solid transparent;
}
.drawer-links a:hover,.drawer-links a.active{background:var(--c-primary-l);color:var(--c-primary-d);border-color:rgba(15,163,127,.25);}
.drawer .btn{width:100%;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);padding:20px 0 0;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary-d);}
.breadcrumb .sep{color:#B9C6C1;}
.breadcrumb .cur{color:var(--c-ink);font-weight:500;}

/* ---------- 页头 Hero ---------- */
.page-head{padding:12px 0 0;}
.page-head-grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:40px;align-items:center;padding:32px 0 0;
}
.page-head h1{
  font-size:44px;font-weight:800;letter-spacing:.01em;margin-bottom:16px;
}
.page-head .lead{font-size:16px;color:var(--c-text);max-width:560px;}
.head-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:500;
}
.pill-cat{background:var(--c-primary-l);color:var(--c-primary-d);}
.pill-meta{background:rgba(255,122,61,.12);color:var(--c-accent-d);}
.pill-plain{background:#fff;border:1px solid var(--c-line);color:var(--c-muted);}
.head-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/9;border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.head-visual img{width:100%;height:100%;object-fit:cover;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-block) 0 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:30px;font-weight:700;margin-bottom:12px;}
.section-head p{color:var(--c-muted);font-size:15px;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--c-line) 18%,var(--c-line) 82%,transparent);margin-top:var(--sp-block);}

/* ---------- 要点卡组 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#D6E2DC;}
.card-accent{position:relative;overflow:hidden;}
.card-accent::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);}
.card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.card p{font-size:15px;color:var(--c-text);}
.card-7{grid-column:span 7;}
.card-5{grid-column:span 5;}
.card-12{grid-column:span 12;}
.icon-box{
  width:44px;height:44px;border-radius:13px;
  background:var(--c-primary-l);color:var(--c-primary-d);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.icon-box.orange{background:rgba(255,122,61,.12);color:var(--c-accent-d);}

/* ---------- 折叠组（本页主结构） ---------- */
.faq-group{margin-top:28px;}
.faq-group-title{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:600;color:var(--c-ink);
  margin-bottom:14px;
}
.faq-group-title .bar{width:4px;height:18px;border-radius:2px;background:var(--c-primary);}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(15,163,127,.32);}
.faq-item.open{border-color:rgba(15,163,127,.45);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;
  padding:18px 20px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  min-height:44px;
}
.faq-q:hover{color:var(--c-primary-d);}
.faq-q .qmark{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;margin-top:3px;
  background:var(--c-primary-l);color:var(--c-primary-d);
  font-size:12.5px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
}
.faq-q .sign{
  margin-left:auto;flex-shrink:0;color:var(--c-muted);
  transition:transform .25s var(--ease),color .22s var(--ease);
}
.faq-item.open .faq-q .sign{transform:rotate(180deg);color:var(--c-primary-d);}
.faq-a{
  display:none;padding:0 20px 20px 56px;font-size:15px;color:var(--c-text);
}
.faq-item.open .faq-a{display:block;}
.faq-a p+p{margin-top:10px;}
.faq-a ul{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.faq-a li{position:relative;padding-left:18px;}
.faq-a li::before{
  content:"";position:absolute;left:2px;top:13px;
  width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px 20px;position:relative;
}
.step-num{
  width:32px;height:32px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-muted);}

/* ---------- 规格卡 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.spec-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.spec-card h3{font-size:17px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.spec-card dl{margin:0;}
.spec-row{display:flex;gap:16px;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14px;}
.spec-row:last-child{border-bottom:0;}
.spec-row dt{width:96px;flex-shrink:0;color:var(--c-muted);}
.spec-row dd{margin:0;color:var(--c-ink);font-weight:500;}
.spec-row dd.num{font-variant-numeric:tabular-nums;}

/* ---------- 图文块 ---------- */
.media-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:40px;align-items:center;margin-top:28px;
}
.media-row .card{padding:28px;}
.media-img{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  aspect-ratio:16/10;box-shadow:var(--sh-1);
}
.media-img img{width:100%;height:100%;object-fit:cover;}
.media-row h3{font-size:20px;font-weight:700;margin-bottom:12px;}
.media-row p+p{margin-top:12px;}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:15px;}
.check-list svg{color:var(--c-primary);margin-top:5px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  margin-top:var(--sp-block);
  background:var(--c-dark);color:#E9F3EF;position:relative;overflow:hidden;
  border-radius:var(--r-xl);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.cta-band .inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px 40px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:26px;font-weight:700;margin-bottom:8px;}
.cta-band p{color:rgba(233,243,239,.78);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-outline{color:#8FE7CB;border-color:rgba(143,231,203,.6);}
.cta-actions .btn-outline:hover{background:rgba(143,231,203,.14);color:#B9F3DF;}

/* ---------- 返回链接 ---------- */
.back-row{padding:36px 0 0;display:flex;justify-content:flex-start;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;
  color:var(--c-primary-d);
}
.back-link:hover{gap:12px;color:var(--c-primary);}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sp-block);background:var(--c-dark);color:rgba(233,243,239,.72);}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:64px 0 40px;
}
.footer-col h4{
  color:#3FD3AB;font-size:13px;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;margin-bottom:16px;display:flex;justify-content:space-between;align-items:center;
}
.footer-acc-toggle{display:none;color:#3FD3AB;font-weight:700;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-text b{color:#3FD3AB;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:340px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:rgba(233,243,239,.72);font-size:14px;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-col a:hover{color:#5FE3BC;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(233,243,239,.12);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(233,243,239,.55);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(233,243,239,.25);color:rgba(233,243,239,.82);font-size:13px;
}
.to-top:hover{border-color:#3FD3AB;color:#3FD3AB;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sp-block:72px;}
  .page-head h1{font-size:36px;}
}
@media (max-width:1023px){
  .nav-search{flex-basis:240px;}
  .page-head-grid{grid-template-columns:1fr;gap:28px;}
  .page-head h1{font-size:34px;}
  .section-head h2{font-size:26px;}
  .card-7,.card-5{grid-column:span 12;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .media-row{grid-template-columns:1fr;gap:24px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--sp-block:56px;}
  body{font-size:15.5px;}
  .nav-search{order:3;flex-basis:100%;max-width:100%;}
  .burger{display:inline-flex;}
  .nav-actions .btn-secondary{display:none;}
  .nav-top{padding:10px 0;gap:12px;}
  .page-head h1{font-size:30px;}
  .section-head h2{font-size:24px;}
  .spec-grid{grid-template-columns:1fr;}
  .spec-row dt{width:84px;}
  .cta-band .inner{padding:32px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-main{grid-template-columns:1fr;gap:0;padding:36px 0 20px;}
  .footer-col{border-bottom:1px solid rgba(233,243,239,.12);padding:14px 0;}
  .footer-col h4{margin-bottom:0;cursor:pointer;}
  .footer-acc-toggle{display:inline;}
  .footer-col ul{display:none;margin-top:14px;}
  .footer-col.open ul{display:flex;}
  .footer-brand{border-bottom:1px solid rgba(233,243,239,.12);padding-bottom:20px;}
  .footer-brand h4,.footer-brand .footer-acc-toggle{display:none;}
  .footer-brand ul{display:flex;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:559px){
  .page-head h1{font-size:27px;}
  .steps{grid-template-columns:1fr;}
  .card{padding:20px;}
  .faq-q{font-size:16px;padding:16px;}
  .faq-a{padding:0 16px 18px 16px;}
  .breadcrumb{font-size:12.5px;}
}