/* roulang page: index */
:root{
  --brand-900:#0B2B2C;
  --brand-700:#0F3D3E;
  --brand-500:#1B6E67;
  --accent:#B6F04A;
  --accent-hover:#C7F86B;
  --accent-warm:#FF7A3D;
  --bg:#F6F7F3;
  --surface:#FFFFFF;
  --surface-alt:#EEF2EA;
  --text:#10201F;
  --text-muted:#5B6B69;
  --text-faint:#8A9896;
  --border:#E2E7E0;
  --border-strong:#C9D2C8;
  --ok:#12A150;
  --danger:#D64545;
  --r-card:14px;
  --r-btn:10px;
  --r-mock:24px;
  --shadow-1:0 1px 2px rgba(16,32,31,.06);
  --shadow-2:0 8px 24px -12px rgba(16,32,31,.18);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
.tnum{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:16px;top:-60px;z-index:200;background:var(--brand-900);color:#fff;padding:10px 16px;border-radius:var(--r-btn);transition:top .2s ease-out}
.skip-link:focus{top:12px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:13px;line-height:38px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar__left{display:flex;align-items:center;gap:10px;white-space:nowrap}
.topbar__domain{font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.topbar__dot{width:4px;height:4px;border-radius:50%;background:var(--accent);display:inline-block}
.topbar__tip{color:rgba(255,255,255,.66)}
.topbar__right{display:flex;align-items:center;gap:20px}
.topbar__right a{color:rgba(255,255,255,.72);transition:color .18s ease-out}
.topbar__right a:hover{color:var(--accent)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--border);transition:box-shadow .2s ease-out}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{display:flex;align-items:center;gap:28px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{width:34px;height:34px;border-radius:10px;background:var(--brand-700);display:grid;place-items:center;color:var(--accent)}
.brand__text{font-weight:700;font-size:17px;letter-spacing:.01em;color:var(--brand-900)}
.nav__menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav__link{position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;font-size:15px;font-weight:600;color:var(--text-muted);transition:color .18s ease-out}
.nav__link:hover{color:var(--brand-500)}
.nav__link.is-active{color:var(--brand-700)}
.nav__link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--brand-700);border-radius:2px}
.nav__spacer{flex:1 1 auto}
.nav__toggle{display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:var(--r-btn);place-items:center;color:var(--brand-700)}
.nav__toggle svg{width:20px;height:20px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out}
.btn--primary{background:var(--accent);color:var(--brand-900)}
.btn--primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-2);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn--outline:hover{background:rgba(15,61,62,.06)}
.btn--light{background:#fff;color:var(--brand-900);border-color:#fff}
.btn--light:hover{box-shadow:var(--shadow-2);transform:translateY(-1px)}
.btn--ghost-light{border-color:rgba(255,255,255,.42);color:#fff;background:transparent}
.btn--ghost-light:hover{background:rgba(255,255,255,.12)}
.btn[disabled]{opacity:.4;cursor:not-allowed}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-500);transition:color .18s ease-out}
.link-more:hover{color:var(--brand-700)}
.link-more span{transition:transform .18s ease-out}
.link-more:hover span{transform:translateX(3px)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:100;pointer-events:none}
.drawer__mask{position:absolute;inset:0;background:rgba(11,43,44,.45);opacity:0;transition:opacity .2s ease-out}
.drawer__panel{position:absolute;top:0;right:0;width:280px;max-width:84vw;height:100%;background:var(--surface);transform:translateX(100%);transition:transform .22s ease-out;display:flex;flex-direction:column;padding:20px 20px 28px}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer__mask{opacity:1}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer__close{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--border);border-radius:var(--r-btn);color:var(--brand-700)}
.drawer__link{display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:var(--r-btn);font-weight:600;color:var(--text-muted);border-bottom:1px solid var(--border)}
.drawer__link:hover{background:var(--surface-alt);color:var(--brand-700)}
.drawer__link.is-active{color:var(--brand-700);background:var(--surface-alt)}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:20px;border-top:1px solid var(--border)}
.drawer__note{font-size:12px;color:var(--text-faint)}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--surface-alt)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.eyebrow{font-size:13px;font-weight:600;color:var(--brand-500);letter-spacing:.08em;margin-bottom:10px}
.h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--brand-900)}
.h2-sub{margin-top:10px;font-size:15px;color:var(--text-muted);max-width:640px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg)}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.9}
.hero__veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(246,247,243,.97) 0%,rgba(246,247,243,.90) 46%,rgba(238,242,234,.72) 100%)}
.hero__inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding:80px 0 72px}
.hero__badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--border);font-size:13px;font-weight:600;color:var(--brand-500);margin-bottom:20px}
.hero__badge i{width:7px;height:7px;border-radius:50%;background:var(--accent-warm);display:inline-block}
.hero h1{font-size:clamp(28px,4.4vw,46px);font-weight:700;color:var(--brand-900);letter-spacing:-.01em}
.hero__sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-muted);max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__meta{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--border)}
.hero__meta li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums}
.hero__meta svg{width:16px;height:16px;color:var(--brand-500);flex:0 0 auto}
.device{position:relative;border-radius:var(--r-mock);background:var(--brand-900);padding:14px;box-shadow:var(--shadow-2);transform:perspective(1200px) rotateY(-6deg) rotateX(2deg)}
.device__bar{display:flex;gap:6px;padding:0 4px 12px}
.device__bar span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.22)}
.device__screen{border-radius:16px;overflow:hidden;background:var(--surface-alt)}
.device__screen img{width:100%;height:auto;aspect-ratio:9/16;object-fit:cover}
.device__wave{position:absolute;left:-32px;bottom:-26px;width:180px;color:var(--accent);opacity:.5}

/* ---------- 价值主张 ---------- */
.value-list{display:grid;gap:20px}
.value-item{position:relative;display:grid;grid-template-columns:72px 1fr;gap:22px;align-items:start;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:26px 28px;transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out}
.value-item::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;background:var(--accent);border-radius:2px}
.value-item:hover{border-color:var(--border-strong);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.value-item__num{font-size:32px;font-weight:700;color:var(--brand-500);font-variant-numeric:tabular-nums;line-height:1.1}
.value-item h3{font-size:19px;font-weight:600;color:var(--brand-900);margin-bottom:8px}
.value-item p{font-size:15px;color:var(--text-muted);line-height:1.8}

/* ---------- 功能截图轮播 ---------- */
.carousel{position:relative}
.carousel__viewport{overflow:hidden}
.carousel__track{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 18px;scrollbar-width:none;cursor:grab}
.carousel__track::-webkit-scrollbar{display:none}
.carousel__track.is-dragging{cursor:grabbing;scroll-snap-type:none}
.shot{flex:0 0 220px;scroll-snap-align:start}
.shot__frame{border-radius:var(--r-card);border:1px solid var(--border);background:var(--surface);padding:10px;transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out}
.shot:hover .shot__frame{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.shot__frame img{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:10px}
.shot figcaption{margin-top:12px;font-size:14px;font-weight:600;color:var(--brand-700);text-align:center}
.carousel__bar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:12px}
.carousel__dots{display:flex;gap:10px}
.carousel__dot{width:12px;height:12px;border-radius:50%;border:1.5px solid var(--border-strong);background:transparent;transition:background-color .18s ease-out,border-color .18s ease-out,transform .18s ease-out}
.carousel__dot.is-active{background:var(--accent);border-color:var(--accent);transform:scale(1.15)}
.carousel__arrows{display:flex;gap:10px}
.carousel__arrow{width:46px;height:46px;border:1px solid var(--border-strong);border-radius:var(--r-btn);display:grid;place-items:center;color:var(--brand-700);background:var(--surface);transition:background-color .18s ease-out,border-color .18s ease-out}
.carousel__arrow:hover{background:var(--surface-alt);border-color:var(--brand-500);color:var(--brand-500)}

/* ---------- 系统要求 ---------- */
.req-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.req-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:28px;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.req-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2)}
.req-card__head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.req-card__head svg{width:24px;height:24px;color:var(--brand-500)}
.req-card__head h3{font-size:20px;font-weight:600;color:var(--brand-900)}
.req-list{display:grid;gap:14px}
.req-list > div{display:grid;grid-template-columns:112px 1fr;gap:14px;align-items:baseline;padding-bottom:14px;border-bottom:1px dashed var(--border)}
.req-list > div:last-child{border-bottom:0;padding-bottom:0}
.req-list dt{font-size:14px;color:var(--text-faint)}
.req-list dd{margin:0;font-size:15px;font-weight:600;color:var(--text);font-variant-numeric:tabular-nums}
.req-card__foot{margin-top:20px;padding-top:16px;border-top:1px solid var(--border);font-size:12px;color:var(--text-faint)}

/* ---------- 评价墙 ---------- */
.review-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.review-col{display:grid;gap:24px}
.review-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:26px 26px 24px 30px}
.review-card::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;background:var(--accent);border-radius:3px}
.review-card__top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.review-card__avatar{width:40px;height:40px;border-radius:999px;overflow:hidden;border:1px solid var(--border);flex:0 0 auto}
.review-card__avatar img{width:100%;height:100%;object-fit:cover}
.review-card__name{font-size:15px;font-weight:600;color:var(--brand-900);line-height:1.4}
.review-card__meta{font-size:12px;color:var(--text-faint)}
.stars{display:flex;gap:3px;margin-bottom:12px;color:var(--accent-warm)}
.stars svg{width:15px;height:15px}
.review-card p{font-size:15px;color:var(--text-muted);line-height:1.8}

/* ---------- 下载大区 ---------- */
.download{position:relative;background:var(--brand-900);color:#fff;overflow:hidden}
.download__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.22}
.download__veil{position:absolute;inset:0;background:linear-gradient(96deg,rgba(11,43,44,.95) 0%,rgba(11,43,44,.82) 60%,rgba(11,43,44,.6) 100%)}
.download__inner{position:relative;display:grid;grid-template-columns:1fr 200px;gap:48px;align-items:center;padding:76px 0}
.download h2{font-size:clamp(22px,2.6vw,32px);color:#fff}
.download__note{margin-top:16px;font-size:16px;color:rgba(255,255,255,.78);max-width:560px}
.download__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.qr-box{background:#fff;border-radius:var(--r-card);padding:14px;width:200px;text-align:center}
.qr-box svg{width:100%;height:auto;border-radius:8px}
.qr-box p{margin-top:10px;font-size:12px;color:var(--text-muted);line-height:1.6}
.download__foot{position:relative;border-top:1px solid rgba(255,255,255,.14);padding:16px 0;font-size:12px;color:rgba(255,255,255,.6)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out}
.news-card:hover{border-color:var(--border-strong);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.news-card__link{display:block;height:100%}
.news-card--lead{grid-column:1 / -1;display:grid;grid-template-columns:340px 1fr}
.news-card__media{overflow:hidden;background:var(--surface-alt)}
.news-card__media img{width:100%;height:100%;object-fit:cover;min-height:230px}
.news-card__body{padding:26px}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--surface-alt);color:var(--brand-700);font-size:12px;font-weight:600;margin-bottom:14px}
.news-card__title{font-size:19px;font-weight:600;color:var(--brand-900);transition:color .18s ease-out}
.news-card:hover .news-card__title{color:var(--brand-500)}
.news-card__desc{margin-top:12px;font-size:15px;color:var(--text-muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--border);font-size:13px;color:var(--text-faint)}
.news-card__arrow{color:var(--brand-500);transition:transform .18s ease-out}
.news-card:hover .news-card__arrow{transform:translateX(3px)}
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--surface);border:1px dashed var(--border-strong);border-radius:var(--r-card);text-align:center;padding:40px 24px}
.empty-state svg{width:34px;height:34px;color:var(--text-faint)}
.empty-state p{font-size:15px;color:var(--text-muted)}

/* ---------- FAQ ---------- */
.faq{max-width:820px}
.faq__item{border-bottom:1px solid var(--border)}
.faq__item:first-child{border-top:1px solid var(--border)}
.faq__item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:62px;padding:14px 4px;font-size:16px;font-weight:600;color:var(--brand-900);list-style:none;cursor:pointer;transition:color .18s ease-out}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{color:var(--brand-500)}
.faq__item[open] summary{color:var(--brand-700)}
.faq__icon{position:relative;flex:0 0 auto;width:22px;height:22px;border:1.5px solid var(--border-strong);border-radius:50%;transition:transform .2s ease-out,border-color .2s ease-out}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);transform:translate(-50%,-50%)}
.faq__icon::before{width:10px;height:1.5px}
.faq__icon::after{width:1.5px;height:10px;transition:opacity .2s ease-out}
.faq__item[open] .faq__icon{transform:rotate(90deg);border-color:var(--brand-500)}
.faq__item[open] .faq__icon::after{opacity:0}
.faq__body{padding:0 4px 22px;font-size:15px;color:var(--text-muted);line-height:1.85;max-width:720px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);font-size:14px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__brand .brand__mark{background:var(--accent);color:var(--brand-900)}
.footer__brand span{font-size:16px;font-weight:700;color:#fff}
.footer__desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer__title{font-size:14px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px}
.footer__list{display:grid;gap:10px}
.footer__list a{color:rgba(255,255,255,.68);transition:color .18s ease-out}
.footer__list a:hover{color:var(--accent)}
.footer__note{font-size:13px;line-height:1.8;color:rgba(255,255,255,.58)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.56)}
.footer__bottom a{color:rgba(255,255,255,.72)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .hero__inner{gap:40px}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .nav__menu{display:none}
  .nav__cta{display:none}
  .nav__toggle{display:grid}
  .nav{min-height:64px;justify-content:space-between}
  .hero__inner{grid-template-columns:1fr;padding:56px 0 60px}
  .device{max-width:340px;margin:0 auto;transform:none}
  .section{padding:64px 0}
  .req-grid{grid-template-columns:1fr}
  .news-card--lead{grid-template-columns:1fr}
  .news-card--lead .news-card__media img{min-height:200px}
  .download__inner{grid-template-columns:1fr;gap:36px;padding:60px 0}
  .qr-box{margin:0 auto}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px}
}
@media (max-width:767px){
  .topbar__right{display:none}
  .section{padding:52px 0}
  .section__head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .value-item{grid-template-columns:1fr;gap:10px;padding:22px 20px}
  .value-item__num{font-size:26px}
  .review-wall{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .shot{flex:0 0 68%}
  .hero h1{font-size:29px}
  .hero__sub{font-size:16px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .brand__text{font-size:15px}
  .hero__actions .btn{width:100%}
  .download__actions .btn{width:100%}
  .shot{flex:0 0 82%}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* roulang page: article */
:root{
  --brand-900:#0B2B2C;
  --brand-700:#0F3D3E;
  --brand-500:#1B6E67;
  --accent:#B6F04A;
  --accent-hover:#C7F86B;
  --accent-warm:#FF7A3D;
  --bg:#F6F7F3;
  --surface:#FFFFFF;
  --surface-alt:#EEF2EA;
  --text:#10201F;
  --text-muted:#5B6B69;
  --text-faint:#8A9896;
  --border:#E2E7E0;
  --border-strong:#C9D2C8;
  --ok:#12A150;
  --warn:#E8A33D;
  --danger:#D64545;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,31,.06);
  --shadow-2:0 8px 24px -12px rgba(16,32,31,.18);
  --container:1200px;
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{line-height:1.3;font-weight:700;}
p{line-height:1.85;}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand-900);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200;}
.skip:focus{left:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1200px){.container{padding:0 32px;}}
.num{font-variant-numeric:tabular-nums;}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.78);font-size:12.5px;}
.topbar__inner{display:flex;align-items:center;gap:10px;min-height:38px;overflow-x:auto;white-space:nowrap;}
.topbar__domain{color:#fff;font-weight:600;letter-spacing:.02em;}
.topbar__dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:none;}
.topbar__hint{color:rgba(255,255,255,.72);}
.topbar__links{margin-left:auto;display:flex;gap:18px;}
.topbar__links a{color:rgba(255,255,255,.78);transition:color .2s ease-out;}
.topbar__links a:hover{color:var(--accent);}
@media (max-width:575px){.topbar__links{display:none;}}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header__inner{display:flex;align-items:center;gap:20px;min-height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.01em;color:var(--brand-700);}
.brand__mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  border-radius:11px;background:var(--surface-alt);color:var(--brand-700);
  border:1px solid var(--border-strong);
}
.brand__text{white-space:nowrap;}
.nav__menu{display:none;margin-left:auto;align-items:center;gap:4px;}
.nav__link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--text-muted);border-radius:8px;
  transition:color .2s ease-out,background-color .2s ease-out;
}
.nav__link:hover{color:var(--brand-500);background:rgba(27,110,103,.06);}
.nav__link.is-active{color:var(--brand-700);font-weight:600;}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand-700);border-radius:2px;
}
.header__cta{display:none;margin-left:12px;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;display:grid;place-items:center;
  border:1px solid var(--border);border-radius:10px;color:var(--brand-700);
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.nav-toggle:hover{border-color:var(--border-strong);background:var(--surface-alt);}
.nav-toggle__bars{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;}
.nav-toggle__bars::before{top:-6px;}
.nav-toggle__bars::after{top:6px;}
@media (min-width:1024px){
  .nav__menu{display:flex;}
  .header__cta{display:inline-flex;}
  .nav-toggle{display:none;}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--accent);color:var(--brand-900);box-shadow:var(--shadow-1);}
.btn--primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-2);transform:translateY(-1px);}
.btn--outline{border:1.5px solid var(--brand-700);color:var(--brand-700);background:transparent;}
.btn--outline:hover{background:rgba(15,61,62,.06);}
.btn--ghost{padding:12px 8px;color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.btn--ghost:hover{text-decoration-thickness:2px;}
.btn--sm{min-height:40px;padding:9px 16px;font-size:14px;}
.btn--block{width:100%;}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:200;display:none;}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(11,43,44,.5);backdrop-filter:blur(2px);}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:280px;max-width:86vw;background:var(--surface);
  padding:18px 18px 24px;display:flex;flex-direction:column;gap:6px;
  box-shadow:-16px 0 40px -24px rgba(16,32,31,.4);
  animation:drawerIn .22s ease-out;
}
@keyframes drawerIn{from{transform:translateX(20px);opacity:.6;}to{transform:none;opacity:1;}}
.drawer__top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--border);}
.drawer__top .brand__text{font-size:15px;font-weight:700;color:var(--brand-700);}
.drawer__close{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);font-size:16px;color:var(--text-muted);}
.drawer__close:hover{border-color:var(--border-strong);color:var(--brand-700);}
.drawer__nav{display:flex;flex-direction:column;padding:8px 0;}
.drawer__link{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--text-muted);
  transition:background-color .18s ease-out,color .18s ease-out;
}
.drawer__link:hover{background:var(--surface-alt);color:var(--brand-700);}
.drawer__link.is-active{color:var(--brand-700);font-weight:600;background:var(--surface-alt);}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.drawer__note{font-size:12px;color:var(--text-faint);line-height:1.7;}

/* 面包屑 */
main{display:block;}
.page-top{padding:24px 0 0;}
.breadcrumb{font-size:13px;color:var(--text-faint);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;max-width:100%;}
.breadcrumb li+li::before{content:"/";color:var(--border-strong);}
.breadcrumb a{color:var(--text-muted);transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb [aria-current]{color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw;}

/* 文章布局 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:28px;
  padding:20px 0 56px;align-items:start;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:40px;}
}
.article{min-width:0;max-width:820px;}
.article__head{padding:8px 0 22px;border-bottom:1px solid var(--border);}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(27,110,103,.1);color:var(--brand-700);
}
.badge--soft{background:var(--surface-alt);color:var(--text-muted);font-weight:500;}
.article__title{
  margin:14px 0 0;
  font-size:clamp(26px,4.2vw,38px);
  font-weight:700;line-height:1.28;letter-spacing:-.01em;color:var(--text);
}
.article__meta{
  margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:13px;color:var(--text-muted);
}
.article__meta .meta__item{display:inline-flex;align-items:center;gap:6px;}
.article__meta .meta__item svg{color:var(--brand-500);flex:none;}
.article__meta .sep{width:1px;height:12px;background:var(--border-strong);}

/* 正文排版 */
.article__body{
  padding:26px 0 8px;
  font-size:16px;line-height:1.85;color:var(--text);
  word-wrap:break-word;overflow-wrap:break-word;
}
.article__body>*+*{margin-top:18px;}
.article__body p{color:var(--text);}
.article__body h2{
  position:relative;margin:38px 0 14px;padding-left:14px;
  font-size:clamp(21px,2.6vw,26px);font-weight:700;line-height:1.35;
}
.article__body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;
  background:var(--brand-700);border-radius:2px;
}
.article__body h3{margin:26px 0 10px;font-size:20px;font-weight:600;line-height:1.4;}
.article__body h4{margin:20px 0 8px;font-size:17px;font-weight:600;}
.article__body ul,.article__body ol{padding-left:1.35em;margin:14px 0;}
.article__body ul{list-style:disc;}
.article__body ol{list-style:decimal;}
.article__body li{margin:8px 0;line-height:1.75;}
.article__body li::marker{color:var(--brand-500);}
.article__body blockquote{
  margin:20px 0;padding:14px 18px;
  border-left:4px solid var(--brand-500);background:var(--surface-alt);
  border-radius:0 10px 10px 0;color:var(--text-muted);font-size:15.5px;
}
.article__body blockquote p{margin:0;color:var(--text-muted);}
.article__body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.article__body a:hover{color:var(--brand-700);}
.article__body img{border-radius:12px;border:1px solid var(--border);margin:8px 0;}
.article__body figure{margin:20px 0;}
.article__body figcaption{text-align:center;font-size:13px;color:var(--text-faint);margin-top:8px;}
.article__body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;margin:20px 0;font-size:14.5px;
  border:1px solid var(--border);border-radius:12px;background:var(--surface);
}
.article__body th,.article__body td{padding:10px 14px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap;}
.article__body th{background:var(--surface-alt);font-weight:600;color:var(--brand-700);}
.article__body tr:last-child td{border-bottom:0;}
.article__body code{background:var(--surface-alt);padding:2px 6px;border-radius:6px;font-size:14px;}
.article__body hr{border:0;border-top:1px solid var(--border);margin:28px 0;}

/* 正文尾部 */
.article__foot{
  margin-top:32px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;color:var(--text-muted);background:var(--surface);border:1px solid var(--border);
  transition:border-color .18s ease-out,color .18s ease-out;
}
.tag:hover{border-color:var(--border-strong);color:var(--brand-700);}
.foot-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}

/* 空态 */
.empty-state{
  margin:24px 0;padding:56px 24px;text-align:center;
  background:var(--surface);border:1px dashed var(--border-strong);border-radius:var(--radius-card);
}
.empty-state svg{color:var(--brand-500);margin:0 auto 14px;}
.empty-state h2{font-size:20px;margin-bottom:8px;}
.empty-state p{color:var(--text-muted);font-size:14.5px;margin-bottom:18px;}

/* 侧栏 */
.sidebar{display:flex;flex-wrap:wrap;gap:16px;}
.sidebar>*{flex:1 1 240px;min-width:0;}
@media (min-width:1200px){
  .sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:92px;}
  .sidebar>*{flex:none;}
}
.side-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-card__title{font-size:14px;font-weight:700;color:var(--brand-700);margin-bottom:12px;letter-spacing:.02em;}
.side-card__text{font-size:13.5px;color:var(--text-muted);line-height:1.75;margin-bottom:16px;}
.toc{display:flex;flex-direction:column;gap:2px;}
.toc__link{
  display:block;padding:7px 10px;border-radius:8px;font-size:13.5px;color:var(--text-muted);
  border-left:2px solid transparent;line-height:1.6;
  transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.toc__link:hover{color:var(--brand-700);background:var(--surface-alt);border-left-color:var(--brand-500);}
.toc__empty{font-size:13px;color:var(--text-faint);}
.side-links{display:flex;flex-direction:column;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  min-height:44px;padding:0 10px;border-radius:8px;font-size:14px;color:var(--text-muted);
  transition:background-color .18s ease-out,color .18s ease-out;
}
.side-links a::after{content:"→";color:var(--border-strong);transition:transform .18s ease-out,color .18s ease-out;}
.side-links a:hover{background:var(--surface-alt);color:var(--brand-700);}
.side-links a:hover::after{transform:translateX(2px);color:var(--brand-500);}

/* 相关推荐 */
.related{padding:40px 0 0;border-top:1px solid var(--border);margin-top:40px;max-width:1140px;}
.related__head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.related__head h2{font-size:22px;}
.related__head a{font-size:14px;color:var(--brand-500);}
.related__head a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.related__grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.related__grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.post-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.post-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--surface-alt);}
.post-card__media img{width:100%;height:100%;object-fit:cover;}
.post-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card__body h3{font-size:16.5px;font-weight:600;line-height:1.45;transition:color .18s ease-out;}
.post-card:hover .post-card__body h3{color:var(--brand-500);}
.post-card__body p{font-size:13.5px;color:var(--text-muted);line-height:1.7;}
.post-card__more{margin-top:auto;font-size:13px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.post-card__more span{transition:transform .18s ease-out;}
.post-card:hover .post-card__more span{transform:translateX(3px);}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:56px;padding-top:52px;}
.footer__grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
@media (min-width:640px){.footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer__grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:14px;}
.footer__brand .brand__mark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:var(--accent);}
.footer__desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:420px;}
.footer__title{font-size:14px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:14px;}
.footer__list{display:flex;flex-direction:column;gap:2px;}
.footer__list a{
  display:inline-flex;align-items:center;min-height:38px;font-size:13.5px;color:rgba(255,255,255,.7);
  transition:color .18s ease-out,transform .18s ease-out;
}
.footer__list a:hover{color:var(--accent);transform:translateX(2px);}
.footer__note{font-size:13px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:18px 16px 26px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;color:rgba(255,255,255,.55);
}
@media (min-width:768px){.footer__bottom{padding-left:24px;padding-right:24px;}}
@media (min-width:1200px){.footer__bottom{padding-left:32px;padding-right:32px;}}

/* 提示条 */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(10px);
  background:var(--brand-900);color:#fff;font-size:13.5px;padding:12px 18px;border-radius:var(--radius-pill);
  box-shadow:var(--shadow-2);opacity:0;pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out;z-index:220;
}
.toast.is-show{opacity:1;transform:translateX(-50%) translateY(0);}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B2B2C;
  --brand-700:#0F3D3E;
  --brand-500:#1B6E67;
  --accent:#B6F04A;
  --accent-hover:#C7F86B;
  --accent-warm:#FF7A3D;
  --bg:#F6F7F3;
  --surface:#FFFFFF;
  --surface-alt:#EEF2EA;
  --text:#10201F;
  --text-muted:#5B6B69;
  --text-faint:#8A9896;
  --border:#E2E7E0;
  --border-strong:#C9D2C8;
  --ok:#12A150;
  --warn:#E8A33D;
  --danger:#D64545;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,31,.06);
  --shadow-2:0 8px 24px -12px rgba(16,32,31,.18);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
strong{font-weight:600;color:var(--text)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:var(--brand-900);padding:10px 18px;border-radius:0 0 10px 0;font-weight:600;z-index:200}
.skip-link:focus{left:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.72);font-size:13px}
.topbar__inner{display:flex;align-items:center;gap:10px;min-height:38px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.topbar__inner::-webkit-scrollbar{display:none}
.topbar__domain{color:#fff;font-weight:600;letter-spacing:.02em}
.topbar__sep{color:rgba(255,255,255,.28)}
.topbar__notice{color:rgba(255,255,255,.72)}
.topbar__links{margin-left:auto;display:none;gap:20px}
.topbar__links a{transition:color .18s var(--ease)}
.topbar__links a:hover{color:var(--accent)}
@media(min-width:768px){.topbar__links{display:flex}}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--border);transition:box-shadow .2s var(--ease)}
.site-header.is-stuck{box-shadow:var(--shadow-1)}
.header__inner{display:flex;align-items:center;gap:16px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--brand-700);flex:none}
.brand__mark{width:34px;height:34px;border-radius:10px;background:var(--brand-700);color:var(--accent);display:grid;place-items:center;flex:none}
.brand__text{white-space:nowrap}
.nav__menu{display:none;gap:4px;margin-left:14px}
.nav__link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;font-size:15px;color:var(--text-muted);border-radius:8px;transition:color .18s var(--ease),background-color .18s var(--ease)}
.nav__link:hover{color:var(--brand-500);background:var(--surface-alt)}
.nav__link.is-active{color:var(--brand-700);font-weight:600}
.nav__link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;background:var(--brand-700);border-radius:2px}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius-btn);cursor:pointer;transition:border-color .18s var(--ease),background-color .18s var(--ease)}
.nav-toggle:hover{border-color:var(--border-strong);background:var(--surface-alt)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media(min-width:1024px){
  .nav__menu{display:flex}
  .nav-toggle{display:none}
}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:120;display:none}
.drawer.is-open{display:block}
.drawer__mask{position:absolute;inset:0;background:rgba(11,43,44,.52);opacity:0;animation:fadeIn .2s var(--ease) forwards}
.drawer__panel{position:absolute;top:0;right:0;height:100%;width:280px;max-width:84vw;background:var(--surface);padding:20px;display:flex;flex-direction:column;gap:6px;box-shadow:-12px 0 32px -18px rgba(16,32,31,.45);transform:translateX(100%);animation:slideIn .24s var(--ease) forwards}
@keyframes fadeIn{to{opacity:1}}
@keyframes slideIn{to{transform:translateX(0)}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--border);margin-bottom:8px}
.drawer__title{font-size:15px;font-weight:700;color:var(--brand-700)}
.drawer__close{width:40px;height:40px;border:1px solid var(--border);background:var(--surface);border-radius:10px;cursor:pointer;font-size:18px;line-height:1;color:var(--text-muted);transition:border-color .18s var(--ease),color .18s var(--ease)}
.drawer__close:hover{border-color:var(--border-strong);color:var(--brand-700)}
.drawer__link{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:10px;font-size:15px;color:var(--text-muted);transition:background-color .18s var(--ease),color .18s var(--ease)}
.drawer__link:hover{background:var(--surface-alt);color:var(--brand-500)}
.drawer__link.is-active{background:var(--surface-alt);color:var(--brand-700);font-weight:600}
.drawer__foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:12px}
.drawer__meta{font-size:12px;color:var(--text-faint);line-height:1.7}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 22px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;border:1.5px solid transparent;cursor:pointer;transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease)}
.btn--primary{background:var(--accent);color:var(--brand-900)}
.btn--primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-2);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn--ghost:hover{background:rgba(15,61,62,.06)}
.btn--light{background:#fff;color:var(--brand-900)}
.btn--light:hover{background:#F1F4EE;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn--outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.8)}
.btn--sm{min-height:40px;padding:8px 16px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- 面包屑 ---------- */
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62)}
.breadcrumb__list a{transition:color .18s var(--ease)}
.breadcrumb__list a:hover{color:var(--accent)}
.breadcrumb__list [aria-current]{color:rgba(255,255,255,.9)}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;background:var(--brand-900) url('/assets/images/backpic/back-1.png') center/cover no-repeat;overflow:hidden;color:#fff}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(11,43,44,.95) 0%,rgba(11,43,44,.84) 52%,rgba(11,43,44,.66) 100%)}
.page-hero__inner{position:relative;z-index:1;padding:30px 0 58px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-top:26px;padding:5px 14px;border-radius:var(--radius-pill);background:rgba(182,240,74,.14);border:1px solid rgba(182,240,74,.35);color:var(--accent);font-size:13px;font-weight:600}
.page-hero h1{margin-top:18px;font-size:clamp(28px,4.4vw,44px);line-height:1.28;font-weight:700;max-width:840px}
.page-hero__lead{margin-top:16px;max-width:680px;font-size:16.5px;color:rgba(255,255,255,.8)}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(255,255,255,.72)}
.hero-stats li{display:inline-flex;align-items:center;gap:8px}
.hero-stats .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}

/* ---------- 板块通用 ---------- */
.section{padding:52px 0}
@media(min-width:1024px){.section{padding:80px 0}}
.section--alt{background:var(--surface-alt)}
.section--tight{padding-bottom:24px}
.section__head{max-width:780px}
.section__eyebrow{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--brand-500)}
.section__title{margin-top:10px;font-size:clamp(24px,3vw,31px);line-height:1.32;font-weight:700}
.section__desc{margin-top:14px;color:var(--text-muted);font-size:16px}
.section__body{margin-top:34px}

/* ---------- 编号清单 ---------- */
.checks{display:grid;gap:16px}
@media(min-width:900px){.checks{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}}
.check{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:24px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease)}
.check:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.check__num{font-size:13px;font-weight:700;color:var(--brand-500);letter-spacing:.08em}
.check__title{margin-top:12px;font-size:18px;font-weight:600}
.check__text{margin-top:8px;font-size:15px;color:var(--text-muted);line-height:1.8}

/* ---------- 图文交错 ---------- */
.splits{display:grid;gap:44px}
.split{display:grid;gap:24px;align-items:center}
@media(min-width:900px){
  .split{grid-template-columns:minmax(0,40%) minmax(0,1fr);gap:56px}
  .split--reverse .split__media{order:2}
}
.split__media{border-radius:18px;overflow:hidden;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-1)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split__step{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:var(--radius-pill);background:var(--surface-alt);border:1px solid var(--border);color:var(--brand-500);font-size:13px;font-weight:600}
.split__title{margin-top:16px;font-size:clamp(20px,2.2vw,24px);line-height:1.35;font-weight:700}
.split__text{margin-top:12px;color:var(--text-muted);line-height:1.85}
.split__list{margin-top:16px;display:grid;gap:10px}
.split__list li{position:relative;padding-left:22px;font-size:15px;color:var(--text-muted);line-height:1.8}
.split__list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--accent);border:1px solid var(--brand-500)}

/* ---------- CTA 深色区 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);border-radius:var(--radius-lg);padding:36px 24px;color:#fff;display:grid;gap:26px;align-items:center}
.cta-band::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:32px 32px;opacity:.5;pointer-events:none}
.cta-band__inner{position:relative;z-index:1}
.cta-band__title{font-size:clamp(21px,2.4vw,26px);font-weight:700;line-height:1.35}
.cta-band__text{margin-top:12px;color:rgba(255,255,255,.78);font-size:15.5px;max-width:620px}
.cta-band__actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:900px){
  .cta-band{grid-template-columns:minmax(0,1.5fr) auto;padding:46px 52px}
  .cta-band__actions{flex-direction:column;align-items:stretch}
}

/* ---------- 卡片 ---------- */
.cards{display:grid;gap:18px}
@media(min-width:640px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:24px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease)}
.card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card__top{display:flex;align-items:center;gap:10px}
.card__icon{width:36px;height:36px;border-radius:10px;background:var(--surface-alt);color:var(--brand-500);display:grid;place-items:center;flex:none}
.card__title{font-size:17.5px;font-weight:600}
.card__text{margin-top:12px;font-size:15px;color:var(--text-muted);line-height:1.85}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:600;background:var(--surface-alt);color:var(--brand-500);border:1px solid var(--border)}
.badge--warm{background:rgba(255,122,61,.12);color:#B84A17;border-color:rgba(255,122,61,.3)}

/* ---------- FAQ ---------- */
.faq{max-width:820px}
.faq__item{border-bottom:1px solid var(--border)}
.faq__item:first-child{border-top:1px solid var(--border)}
.faq__item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:60px;padding:16px 0;cursor:pointer;list-style:none;font-size:16.5px;font-weight:600;color:var(--text);transition:color .18s var(--ease)}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{color:var(--brand-500)}
.faq__item[open] summary{color:var(--brand-700)}
.faq__icon{position:relative;width:20px;height:20px;flex:none}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq__icon::before{left:0;top:9px;width:20px;height:2px}
.faq__icon::after{left:9px;top:0;width:2px;height:20px}
.faq__item[open] .faq__icon::after{transform:rotate(90deg);opacity:0}
.faq__body{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--text-muted);max-width:720px}

/* ---------- 相关入口 ---------- */
.links-grid{display:grid;gap:16px}
@media(min-width:768px){.links-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.link-card{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px 22px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);transition:border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease)}
.link-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.link-card__title{font-size:16px;font-weight:600;transition:color .18s var(--ease)}
.link-card:hover .link-card__title{color:var(--brand-500)}
.link-card__sub{margin-top:6px;font-size:13px;color:var(--text-faint)}
.link-card__arrow{color:var(--brand-500);flex:none;transition:transform .18s var(--ease)}
.link-card:hover .link-card__arrow{transform:translateX(3px)}
.back-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:30px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding-top:56px;margin-top:8px}
.footer__grid{display:grid;gap:32px}
@media(min-width:768px){.footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer__grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px}
.footer__desc{margin-top:16px;font-size:14px;line-height:1.85;max-width:420px}
.footer__title{color:rgba(255,255,255,.5);font-size:13px;font-weight:600;letter-spacing:.06em;margin-bottom:16px}
.footer__list{display:flex;flex-direction:column;gap:11px;font-size:14px}
.footer__list a{transition:color .18s var(--ease)}
.footer__list a:hover{color:var(--accent)}
.footer__note{font-size:14px;line-height:1.85}
.footer__bottom{margin-top:46px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B2B2C;
  --brand-700:#0F3D3E;
  --brand-500:#1B6E67;
  --accent:#B6F04A;
  --accent-hover:#C7F86B;
  --accent-warm:#FF7A3D;
  --bg:#F6F7F3;
  --surface:#FFFFFF;
  --surface-alt:#EEF2EA;
  --text:#10201F;
  --text-muted:#5B6B69;
  --text-faint:#8A9896;
  --border:#E2E7E0;
  --border-strong:#C9D2C8;
  --ok:#12A150;
  --warn:#E8A33D;
  --danger:#D64545;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:24px;
  --shadow-1:0 1px 2px rgba(16,32,31,.06);
  --shadow-2:0 8px 24px -12px rgba(16,32,31,.18);
  --container:1200px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-500)}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,p,figure,dl,dd{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.skip{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--brand-900);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;font-size:14px;
}
.skip:focus{left:0}
.num,.spec__val{font-variant-numeric:tabular-nums}

/* 容器 */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding-top:4px;padding-bottom:4px}
.topbar__left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar__domain{font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums;color:#fff}
.topbar__dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:0 0 4px}
.topbar__tip{color:rgba(255,255,255,.7);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar__right a{color:rgba(255,255,255,.72);font-size:13px}
.topbar__right a:hover{color:var(--accent)}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--border);transition:box-shadow .2s ease-out;
}
.site-header.is-stuck{box-shadow:var(--shadow-1)}
.header__inner{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:32px;height:32px;border-radius:10px;background:var(--brand-700);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 32px;
}
.brand__text{font-size:17px;font-weight:700;color:var(--brand-900);letter-spacing:.01em;white-space:nowrap}
.brand:hover .brand__text{color:var(--brand-500)}
.nav__menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav__link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;font-size:15px;font-weight:600;
  color:var(--text-muted);border-bottom:2px solid transparent;transition:color .18s ease-out,border-color .18s ease-out;
}
.nav__link:hover{color:var(--brand-500)}
.nav__link.is-active{color:var(--brand-700);border-bottom-color:var(--brand-700)}
.header__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn--primary{background:var(--accent);color:var(--brand-900)}
.btn--primary:hover{background:var(--accent-hover);color:var(--brand-900);box-shadow:var(--shadow-2);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--outline{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn--outline:hover{background:rgba(15,61,62,.06);color:var(--brand-700)}
.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn--outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn--light{background:#fff;color:var(--brand-900)}
.btn--light:hover{background:rgba(255,255,255,.9);color:var(--brand-900);transform:translateY(-1px)}
.btn--ghost{background:transparent;padding:0;min-height:44px;color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.btn--ghost:hover{text-decoration-thickness:2px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* 汉堡与抽屉 */
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1.5px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--border-strong);background:var(--surface-alt)}
.overlay{
  position:fixed;inset:0;background:rgba(11,43,44,.5);opacity:0;pointer-events:none;
  transition:opacity .2s ease-out;z-index:70;
}
.overlay.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:280px;background:var(--surface);z-index:80;
  transform:translateX(102%);transition:transform .22s ease-out;
  display:flex;flex-direction:column;padding:20px;box-shadow:var(--shadow-2);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer__title{font-size:14px;font-weight:600;color:var(--text-faint);letter-spacing:.06em}
.drawer__close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:transparent;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;color:var(--text-muted);
}
.drawer__close:hover{background:var(--surface-alt);color:var(--brand-700)}
.drawer__nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto}
.drawer__link{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;
  font-size:15.5px;font-weight:600;color:var(--text-muted);
}
.drawer__link:hover{background:var(--surface-alt);color:var(--brand-700)}
.drawer__link.is-active{background:var(--surface-alt);color:var(--brand-700)}
.drawer__foot{border-top:1px solid var(--border);padding-top:16px;display:flex;flex-direction:column;gap:12px}
.drawer__meta{font-size:13px;color:var(--text-faint);line-height:1.7}

/* Hero */
.hero{
  position:relative;overflow:hidden;color:#fff;padding:34px 0 78px;
  background-image:
    linear-gradient(104deg,rgba(11,43,44,.94) 0%,rgba(11,43,44,.86) 52%,rgba(15,61,62,.76) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero__wave{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:70px;display:block}
.hero__grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;position:relative;z-index:1}
.breadcrumb{padding-top:6px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px}
.breadcrumb li{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.62)}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.35)}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--accent)}
.hero h1{
  margin:20px 0 16px;font-size:clamp(28px,4.4vw,44px);line-height:1.28;font-weight:700;
  letter-spacing:.01em;color:#fff;max-width:22em;
}
.hero__lead{font-size:17px;line-height:1.8;color:rgba(255,255,255,.84);max-width:40em}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero__meta{display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:30px;font-size:13px;color:rgba(255,255,255,.72)}
.hero__meta span{display:inline-flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums}
.hero__meta svg{color:var(--accent);flex:0 0 auto}
.hero__media{position:relative}
.hero__media img{
  width:100%;border-radius:18px;border:1px solid rgba(255,255,255,.2);
  box-shadow:0 24px 48px -24px rgba(0,0,0,.6);
}
.hero__badge{
  position:absolute;left:16px;bottom:16px;background:rgba(11,43,44,.82);color:#fff;
  font-size:12.5px;padding:7px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(4px);
}

/* 通用板块 */
.section{padding:76px 0}
.section--alt{background:var(--surface-alt)}
.section--tight{padding:60px 0}
.section__head{max-width:760px;margin-bottom:36px}
.section__title{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--brand-900);margin-bottom:12px}
.section__desc{font-size:16px;color:var(--text-muted)}

/* 双栏布局：目录 + 内容 */
.layout{display:grid;grid-template-columns:238px minmax(0,1fr);gap:56px;align-items:start}
.aside{position:sticky;top:92px;display:flex;flex-direction:column;gap:16px}
.toc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 18px;box-shadow:var(--shadow-1)}
.toc__title{font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--text-faint);margin-bottom:12px}
.toc__list{list-style:none;display:flex;flex-direction:column;gap:2px}
.toc__link{
  display:block;padding:9px 12px;border-radius:9px;font-size:14.5px;font-weight:600;color:var(--text-muted);
  border-left:3px solid transparent;transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.toc__link:hover{background:var(--surface-alt);color:var(--brand-700)}
.toc__link.is-current{background:var(--surface-alt);color:var(--brand-700);border-left-color:var(--accent)}
.toc-cta{background:var(--brand-900);color:#fff;border-radius:var(--radius);padding:20px 18px}
.toc-cta__title{font-size:15px;font-weight:700;color:#fff;margin-bottom:8px}
.toc-cta__text{font-size:13px;line-height:1.7;color:rgba(255,255,255,.72);margin-bottom:14px}

.content{min-width:0}
.block{scroll-margin-top:96px}
.block+.block{margin-top:56px;padding-top:56px;border-top:1px solid var(--border)}
.block__title{
  position:relative;padding-left:16px;margin-bottom:18px;
  font-size:clamp(21px,2.4vw,27px);line-height:1.4;font-weight:700;color:var(--brand-900);
}
.block__title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;background:var(--brand-700);
}
.prose p{font-size:16px;line-height:1.85;color:var(--text);margin-bottom:16px;max-width:46em}
.prose p:last-child{margin-bottom:0}
.prose .note{font-size:14.5px;color:var(--text-muted)}
.list-check{list-style:none;display:grid;gap:12px;margin:20px 0 4px}
.list-check li{position:relative;padding-left:32px;font-size:15.5px;line-height:1.75;color:var(--text);max-width:44em}
.list-check li::before{
  content:"✓";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:11px;line-height:1;
  background:rgba(27,110,103,.12);border:1px solid rgba(27,110,103,.32);color:var(--brand-700);
}
.list-check b{color:var(--brand-900)}

/* 信息卡 */
.info-card{
  background:var(--surface-alt);border:1px solid var(--border-strong);border-radius:var(--radius);
  padding:22px 24px;margin:24px 0;
}
.section--alt .info-card{background:var(--surface)}
.info-card__title{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--brand-900);margin-bottom:16px}
.info-card__title .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 8px}
.spec{display:grid;gap:0}
.spec__row{
  display:flex;align-items:baseline;justify-content:space-between;gap:18px;
  padding:10px 0;border-bottom:1px dashed var(--border-strong);
}
.spec__row:last-child{border-bottom:0;padding-bottom:0}
.spec__key{font-size:14.5px;color:var(--text-muted);flex:1 1 auto}
.spec__val{font-size:15px;font-weight:600;color:var(--brand-900);text-align:right;flex:0 0 auto}

/* 图片块 */
.figure{margin:24px 0}
.figure img{width:100%;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-1)}
.figure figcaption{margin-top:10px;font-size:13px;color:var(--text-faint);text-align:center}

/* CTA 深色区 */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
  border-radius:20px;padding:46px 40px;
  display:grid;grid-template-columns:1.45fr .9fr;gap:36px;align-items:center;
}
.cta-band__texture{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:28px 28px;
}
.cta-band__body{position:relative;z-index:1}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);line-height:1.4;font-weight:700;color:#fff;margin-bottom:12px}
.cta-band p{font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.78);max-width:34em}
.cta-band__actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-band__note{margin-top:22px;font-size:12.5px;color:rgba(255,255,255,.55);position:relative;z-index:1}

/* FAQ */
.faq{max-width:840px}
.faq__item{border-bottom:1px solid var(--border)}
.faq__item:first-child{border-top:1px solid var(--border)}
.faq__q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:62px;padding:14px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .18s ease-out;
}
.faq__q::-webkit-details-marker{display:none}
.faq__q:hover{color:var(--brand-500)}
.faq__icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid var(--border-strong);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-muted);
  font-size:16px;line-height:1;transition:transform .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.faq__item[open] .faq__q{color:var(--brand-700)}
.faq__item[open] .faq__icon{transform:rotate(45deg);color:var(--brand-700);border-color:var(--brand-500)}
.faq__a{padding:0 4px 20px;font-size:15px;line-height:1.85;color:var(--text-muted);max-width:74ch}

/* 相关入口 */
.related__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.rel-card{
  display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.rel-card:hover{border-color:var(--border-strong);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.rel-card__label{font-size:12.5px;font-weight:600;color:var(--text-faint);letter-spacing:.06em;margin-bottom:10px}
.rel-card__title{font-size:18px;font-weight:700;color:var(--brand-900);margin-bottom:8px;transition:color .18s ease-out}
.rel-card:hover .rel-card__title{color:var(--brand-500)}
.rel-card__text{font-size:14.5px;line-height:1.75;color:var(--text-muted)}
.rel-card__arrow{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand-700)}
.rel-card:hover .rel-card__arrow svg{transform:translateX(2px)}
.rel-card__arrow svg{transition:transform .18s ease-out}
.related__foot{margin-top:26px;display:flex;flex-wrap:wrap;gap:18px;align-items:center}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72)}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:40px;
  padding:64px 0 44px;
}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px}
.footer__brand .brand__mark{background:rgba(255,255,255,.12);color:var(--accent)}
.footer__desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:34ch}
.footer__title{font-size:13.5px;font-weight:600;color:rgba(255,255,255,.55);margin-bottom:16px;letter-spacing:.04em}
.footer__list{display:flex;flex-direction:column;gap:11px}
.footer__list a{color:rgba(255,255,255,.78);font-size:15px}
.footer__list a:hover{color:var(--accent)}
.footer__note{font-size:14px;line-height:1.85;color:rgba(255,255,255,.64)}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 30px;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.58);
}

/* 响应式 */
@media (max-width:1199px){
  .hero__grid{gap:36px}
}
@media (max-width:1023px){
  .nav__menu{display:none}
  .nav-toggle{display:inline-flex}
  .header__actions .btn{display:none}
  .hero{padding:28px 0 64px}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__media{order:2}
  .layout{grid-template-columns:1fr;gap:32px}
  .aside{position:static;flex-direction:row;align-items:flex-start;gap:16px;overflow-x:auto;padding-bottom:4px}
  .toc{flex:0 0 auto;padding:14px;max-width:100%}
  .toc__title{display:none}
  .toc__list{flex-direction:row;gap:8px}
  .toc__link{white-space:nowrap;border-left:0;border:1px solid var(--border);padding:8px 14px}
  .toc__link.is-current{border-color:var(--brand-500)}
  .toc-cta{display:none}
  .cta-band{grid-template-columns:1fr;padding:36px 28px}
  .cta-band__actions{justify-content:flex-start}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .topbar__right{display:none}
  .brand__text{font-size:15px}
  .section{padding:52px 0}
  .section--tight{padding:44px 0}
  .block+.block{margin-top:40px;padding-top:40px}
  .prose p{font-size:15.5px}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .hero__lead{font-size:15.5px}
  .hero__actions .btn{flex:1 1 100%}
  .hero__meta{gap:10px 20px;font-size:12.5px}
  .related__grid{grid-template-columns:1fr}
  .spec__row{flex-direction:column;align-items:flex-start;gap:2px}
  .spec__val{text-align:left}
  .figure figcaption{text-align:left}
}
@media (max-width:519px){
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:30px 20px;border-radius:16px}
  .drawer{width:88%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B2B2C;
  --brand-700:#0F3D3E;
  --brand-500:#1B6E67;
  --accent:#B6F04A;
  --accent-hover:#C7F86B;
  --accent-warm:#FF7A3D;
  --bg:#F6F7F3;
  --surface:#FFFFFF;
  --surface-alt:#EEF2EA;
  --text:#10201F;
  --text-muted:#5B6B69;
  --text-faint:#8A9896;
  --border:#E2E7E0;
  --border-strong:#C9D2C8;
  --ok:#12A150;
  --warn:#E8A33D;
  --danger:#D64545;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,31,.06);
  --shadow-2:0 8px 24px -12px rgba(16,32,31,.18);
  --container:1200px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-700)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 16px;
}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--accent);color:var(--brand-900);
  padding:10px 18px;border-radius:0 0 var(--radius-btn) 0;font-weight:600;
}
.skip-link:focus{left:0}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  font-size:12px;
  line-height:1.5;
}
.topbar__inner{
  min-height:38px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
}
.topbar__left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar__domain{color:#fff;font-weight:600;letter-spacing:.02em}
.topbar__dot{width:4px;height:4px;border-radius:50%;background:var(--accent);flex:none}
.topbar__tip{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__right{display:flex;align-items:center;gap:18px;flex:none}
.topbar__right a{color:rgba(255,255,255,.78)}
.topbar__right a:hover{color:var(--accent)}
@media (max-width:575px){
  .topbar__right{display:none}
  .topbar__tip{white-space:normal}
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand-700);flex:none}
.brand:hover{color:var(--brand-500)}
.brand__mark{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-alt);color:var(--brand-700);
  border:1px solid var(--border);
  flex:none;
}
.brand__text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
@media (max-width:575px){.brand__text{font-size:14px}}
.nav__menu{display:none;align-items:center;gap:4px}
.nav__link{
  display:inline-flex;align-items:center;
  height:44px;padding:0 14px;
  color:var(--text);font-weight:500;font-size:15px;
  border-bottom:2px solid transparent;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.nav__link:hover{color:var(--brand-500)}
.nav__link.is-active{color:var(--brand-700);font-weight:600;border-bottom-color:var(--brand-700)}
.nav__actions{display:flex;align-items:center;gap:12px;flex:none}
@media (min-width:1024px){
  .nav__menu{display:flex}
  .nav__toggle{display:none}
}
.nav__toggle{
  width:44px;height:44px;border:1px solid var(--border);
  background:var(--surface);border-radius:var(--radius-btn);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-700);
}
.nav__toggle:hover{border-color:var(--border-strong);background:var(--surface-alt)}

/* ---------- 抽屉 ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(11,43,44,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
  z-index:80;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;
  background:var(--surface);z-index:90;
  transform:translateX(100%);
  transition:transform .22s ease-out;
  display:flex;flex-direction:column;
  box-shadow:-8px 0 32px -16px rgba(16,32,31,.3);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:1px solid var(--border);
}
.drawer__title{font-size:15px;font-weight:700;color:var(--brand-700)}
.drawer__close{
  width:44px;height:44px;border:0;background:transparent;color:var(--text-muted);
  display:flex;align-items:center;justify-content:center;border-radius:var(--radius-btn);
}
.drawer__close:hover{background:var(--surface-alt);color:var(--brand-700)}
.drawer__nav{padding:8px 0;flex:1;overflow-y:auto}
.drawer__link{
  display:flex;align-items:center;height:48px;padding:0 20px;
  color:var(--text);font-size:15px;border-left:3px solid transparent;
}
.drawer__link:hover{background:var(--surface-alt);color:var(--brand-500)}
.drawer__link.is-active{color:var(--brand-700);font-weight:600;border-left-color:var(--brand-700);background:var(--surface-alt)}
.drawer__foot{padding:16px 20px;border-top:1px solid var(--border);display:grid;gap:12px}
.drawer__meta{font-size:12px;color:var(--text-faint);line-height:1.7}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 20px;
  border-radius:var(--radius-btn);border:1.5px solid transparent;
  font-weight:600;font-size:15px;
  transition:background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn--primary{background:var(--accent);color:var(--brand-900)}
.btn--primary:hover{background:var(--accent-hover);color:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--primary:active{transform:translateY(0);box-shadow:none}
.btn--ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn--ghost:hover{background:rgba(15,61,62,.06);color:var(--brand-700)}
.btn--light{background:#fff;color:var(--brand-900)}
.btn--light:hover{background:#EDF4E6;color:var(--brand-900);transform:translateY(-1px)}
.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn--outline-light:hover{background:rgba(255,255,255,.1);color:#fff}
.btn--sm{height:42px;padding:0 16px;font-size:14px}
.btn--link{height:auto;padding:0;border:0;background:none;color:var(--brand-700);font-weight:600;text-decoration:underline;text-decoration-offset:3px}
.btn--link:hover{color:var(--brand-500)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-faint)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--border-strong)}
.crumb a{color:var(--text-muted)}
.crumb a:hover{color:var(--brand-500)}
.crumb [aria-current="page"]{color:var(--text);font-weight:600}

/* ---------- Hero ---------- */
.hero{padding:28px 0 56px;position:relative;overflow:hidden}
.hero__grid{
  display:grid;gap:28px;align-items:center;
}
@media (min-width:1024px){
  .hero__grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--surface-alt);color:var(--brand-700);
  font-size:13px;font-weight:600;
  border:1px solid var(--border);
}
.eyebrow__dot{width:6px;height:6px;border-radius:50%;background:var(--accent-warm)}
.hero h1{
  margin-top:18px;
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.28;font-weight:700;letter-spacing:.01em;
  color:var(--brand-900);
}
.hero__lead{
  margin-top:16px;font-size:16.5px;color:var(--text-muted);
  line-height:1.85;max-width:56ch;
}
.hero .btn-row{margin-top:26px}
.hero__micro{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:12.5px;color:var(--text-muted);
}
.hero__micro span{display:inline-flex;align-items:center;gap:7px}
.hero__micro svg{color:var(--brand-500);flex:none}
.hero__panel{
  background:var(--surface);border:1px solid var(--border);
  border-radius:18px;padding:16px;box-shadow:var(--shadow-1);
}
.hero__panel img{border-radius:12px;border:1px solid var(--border);aspect-ratio:16/10;object-fit:cover;width:100%}
.hero__panel-cap{
  margin-top:14px;display:flex;align-items:flex-start;gap:10px;
  font-size:13.5px;color:var(--text-muted);line-height:1.7;
}
.hero__panel-cap b{color:var(--brand-700);font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:80px 0}}
.section--alt{background:var(--surface-alt)}
.section--tight{padding-top:32px}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;
  color:var(--brand-900);
}
.section-head p{margin-top:12px;color:var(--text-muted);font-size:15.5px}
.section-head--row{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;max-width:none;
}

/* ---------- 两列卡片分栏 ---------- */
.grid-2{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:24px;
  display:flex;flex-direction:column;gap:12px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card__top{display:flex;align-items:center;gap:12px}
.card__icon{
  width:42px;height:42px;border-radius:11px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-alt);color:var(--brand-700);
  border:1px solid var(--border);
}
.card__tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);background:var(--surface-alt);
  color:var(--brand-700);font-size:12px;font-weight:600;
  border:1px solid var(--border);
}
.card h3{font-size:19px;font-weight:600;line-height:1.45;color:var(--brand-900)}
.card p{font-size:15px;color:var(--text-muted)}
.card__list{display:grid;gap:8px;margin-top:2px}
.card__list li{
  position:relative;padding-left:18px;
  font-size:14.5px;color:var(--text-muted);line-height:1.75;
}
.card__list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.card__note{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--border);
  font-size:13px;color:var(--text-faint);
}

/* ---------- 对比表 ---------- */
.table-wrap{
  border:1px solid var(--border);border-radius:var(--radius-card);
  background:var(--surface);overflow-x:auto;
}
table.compare{width:100%;min-width:700px;font-size:15px}
.compare th,.compare td{
  padding:16px 20px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--border);line-height:1.75;
}
.compare thead th{
  background:var(--surface-alt);
  color:var(--brand-700);font-size:14px;font-weight:600;letter-spacing:.02em;
  white-space:nowrap;
}
.compare tbody th{
  width:170px;font-weight:600;color:var(--text);background:#FBFCF9;
}
.compare tbody td{color:var(--text-muted)}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0}
.table-note{margin-top:14px;font-size:12.5px;color:var(--text-faint)}

/* ---------- 流程 ---------- */
.steps{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:576px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:24px;
  border-top:2px solid var(--accent);
}
.step__no{
  font-size:26px;font-weight:700;color:var(--brand-500);
  line-height:1;letter-spacing:.02em;
}
.step h3{margin-top:14px;font-size:17px;font-weight:600;color:var(--brand-900)}
.step p{margin-top:8px;font-size:14.5px;color:var(--text-muted)}

/* ---------- 深色 CTA ---------- */
.cta{
  background:var(--brand-900);
  background-image:linear-gradient(rgba(11,43,44,.92),rgba(11,43,44,.92)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;border-radius:20px;
  padding:40px 28px;
}
@media (min-width:1024px){.cta{padding:56px 48px}}
.cta__grid{display:grid;gap:32px;align-items:center}
@media (min-width:1024px){.cta__grid{grid-template-columns:minmax(0,1fr) 180px}}
.cta h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;color:#fff}
.cta p{margin-top:14px;color:rgba(255,255,255,.82);font-size:15.5px;max-width:60ch}
.cta .btn-row{margin-top:26px}
.cta__qr{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.cta__qr-box{
  width:150px;height:150px;background:#fff;border-radius:14px;
  display:flex;align-items:center;justify-content:center;color:var(--brand-900);
}
.cta__qr small{font-size:12px;color:rgba(255,255,255,.7);line-height:1.7}
.cta__foot{
  margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);
  font-size:12px;color:rgba(255,255,255,.62);
}

/* ---------- 清单 + FAQ ---------- */
.split{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:1024px){.split{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:56px}}
.checklist{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:26px}
.checklist h3{font-size:18px;font-weight:600;color:var(--brand-900)}
.checklist ul{margin-top:16px;display:grid;gap:12px}
.checklist li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text-muted);line-height:1.75;
}
.checklist li svg{flex:none;margin-top:6px;color:var(--ok)}
.checklist__warn{
  margin-top:20px;padding:14px 16px;border-radius:12px;
  background:#FDF3E6;border:1px solid #F3DDBE;
  font-size:13.5px;color:#8A5A16;line-height:1.75;
}
.faq{max-width:820px;width:100%}
.faq details{
  background:var(--surface);border:1px solid var(--border);
  border-radius:12px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq details[open]{border-color:var(--border-strong)}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;min-height:60px;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s ease-out,background-color .2s ease-out;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--surface-alt)}
.faq details[open] summary{color:var(--brand-700)}
.faq__icon{
  width:26px;height:26px;flex:none;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-alt);color:var(--brand-700);
  font-size:16px;line-height:1;
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.faq details[open] .faq__icon{transform:rotate(90deg);background:var(--accent);color:var(--brand-900)}
.faq__body{padding:0 20px 20px;font-size:15px;color:var(--text-muted);line-height:1.8}

/* ---------- 相关入口 ---------- */
.rel{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:640px){.rel{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.rel{grid-template-columns:repeat(3,minmax(0,1fr))}}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.rel-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.rel-card img{aspect-ratio:16/9;object-fit:cover;width:100%;border-bottom:1px solid var(--border)}
.rel-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{font-size:17px;font-weight:600;color:var(--brand-900)}
.rel-card p{font-size:14.5px;color:var(--text-muted)}
.rel-card__more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-700);
}
.rel-card:hover .rel-card__more svg{transform:translateX(2px)}
.rel-card__more svg{transition:transform .2s ease-out}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:0}
.footer__grid{
  display:grid;gap:32px;grid-template-columns:1fr;
  padding-top:56px;padding-bottom:32px;
}
@media (min-width:640px){.footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer__grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer__brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:700;font-size:16px;
}
.footer__brand .brand__mark{
  background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:var(--accent);
}
.footer__desc{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7)}
.footer__title{font-size:14px;font-weight:600;color:rgba(255,255,255,.55);letter-spacing:.04em}
.footer__list{margin-top:14px;display:grid;gap:10px}
.footer__list a{color:rgba(255,255,255,.82);font-size:14.5px}
.footer__list a:hover{color:var(--accent)}
.footer__note{margin-top:14px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.7)}
.footer__bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:20px;padding-bottom:28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:12.5px;color:rgba(255,255,255,.6);
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}