/* roulang page: index */
:root{
  --c-primary:#1F4E4A;
  --c-primary-dark:#163A37;
  --c-primary-light:#2F6F68;
  --c-accent:#C25E33;
  --c-accent-dark:#A94C26;
  --c-secondary:#7FA88F;
  --c-deep:#14302D;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-fill:#F2EFE8;
  --c-ink:#1B1F1E;
  --c-ink-2:#4A524F;
  --c-ink-3:#7C8582;
  --c-line:#E4DED2;
  --c-line-strong:#D2C9B8;
  --r-card:12px;
  --r-btn:8px;
  --r-field:8px;
  --r-tag:6px;
  --sh-sm:0 1px 2px rgba(20,48,45,.05);
  --sh-md:0 6px 18px rgba(20,48,45,.08);
  --sh-lg:0 14px 36px rgba(20,48,45,.12);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","PingFang SC","Microsoft YaHei",serif;
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);margin:0;color:var(--c-ink);font-weight:700;}
h1{font-size:40px;line-height:1.28;letter-spacing:.02em;}
h2{font-size:30px;line-height:1.35;letter-spacing:.015em;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
p{margin:0;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
table{border-collapse:collapse;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.row .column,.row .columns{padding-left:12px;padding-right:12px;}
.section{padding-top:var(--sec-y);padding-bottom:var(--sec-y);}
.section--fill{background:var(--c-fill);}
.section--tight{padding-top:calc(var(--sec-y) * .62);padding-bottom:calc(var(--sec-y) * .62);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-head h2{max-width:760px;}
.sec-sub{color:var(--c-ink-2);font-size:15px;line-height:1.85;margin-top:10px;max-width:700px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);border-bottom:2px solid rgba(31,78,74,.28);padding-bottom:2px;}
.link-arrow:hover{color:var(--c-accent);border-color:var(--c-accent);}
.link-arrow svg{width:16px;height:16px;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1000;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:var(--sh-sm);}
.nav-wrap{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;height:100%;}
.brand__mark{width:34px;height:34px;flex:0 0 34px;border-radius:9px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;}
.brand__mark svg{width:20px;height:20px;}
.brand__name{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;}
.brand:hover .brand__name{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:30px;flex:1 1 auto;justify-content:center;}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;white-space:nowrap;}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--c-ink);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:13px;width:17px;height:17px;color:var(--c-ink-3);pointer-events:none;}
.nav-search input{width:196px;height:40px;padding:0 14px 0 38px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-fill);font-size:14px;color:var(--c-ink);transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-search input:focus{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,78,74,.12);outline:none;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;align-items:center;justify-content:center;color:var(--c-ink);}
.nav-toggle svg{width:22px;height:22px;}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 24px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:15px;font-weight:600;line-height:1;text-decoration:none;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .22s ease,box-shadow .22s ease;}
.btn svg{width:17px;height:17px;}
.btn--primary{background:var(--c-accent);color:#fff;}
.btn--primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn--outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn--outline:hover{background:var(--c-primary);color:#fff;}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.65);color:#fff;}
.btn--ghost:hover{background:#fff;border-color:#fff;color:var(--c-deep);}
.btn--sm{min-height:40px;padding:10px 18px;font-size:14px;}
.btn--block{width:100%;}

/* Hero */
.hero{position:relative;background:var(--c-deep);overflow:hidden;}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(102deg,rgba(20,48,45,.88) 0%,rgba(20,48,45,.62) 48%,rgba(20,48,45,.34) 100%);}
.hero__inner{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:center;min-height:560px;padding-top:88px;padding-bottom:80px;color:#fff;}
.hero__badge{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;padding:6px 14px;border-radius:var(--r-tag);background:rgba(194,94,51,.92);color:#fff;font-size:12px;font-weight:600;letter-spacing:.08em;}
.hero h1{color:#fff;max-width:840px;margin-top:20px;}
.hero__sub{margin-top:18px;max-width:660px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);}
.hero__actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap;}
.hero__chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18);}
.hero__chips span{padding:5px 12px;border-radius:var(--r-tag);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);color:#fff;font-size:13px;}

/* 条目列表（服务） */
.svc-list{border-top:1px solid var(--c-line);}
.svc-item{display:flex;gap:20px;padding:26px 4px;border-bottom:1px solid var(--c-line);}
.svc-item__icon{flex:0 0 46px;width:46px;height:46px;border-radius:var(--r-btn);background:rgba(31,78,74,.08);color:var(--c-primary);display:flex;align-items:center;justify-content:center;}
.svc-item__icon svg{width:22px;height:22px;}
.svc-item__body{flex:1 1 auto;min-width:0;}
.svc-item__body h3{font-size:18px;font-weight:600;line-height:1.5;}
.svc-item__body p{margin-top:8px;color:var(--c-ink-2);font-size:15px;line-height:1.85;max-width:640px;}
.svc-item__link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:14px;font-weight:600;color:var(--c-primary);border-bottom:2px solid rgba(31,78,74,.25);padding-bottom:2px;}
.svc-item__link:hover{color:var(--c-accent);border-color:var(--c-accent);}
.side-sticky{position:sticky;top:96px;}
.side-note{margin-top:24px;padding:20px;border-radius:var(--r-card);background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh-sm);}
.side-note p{font-size:14px;color:var(--c-ink-2);line-height:1.85;}

/* 图文区块 */
.story-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md);background:var(--c-fill);}
.story-media img{width:100%;aspect-ratio:4 / 3;object-fit:cover;}
.story-copy p{margin-top:18px;color:var(--c-ink-2);line-height:1.9;}
.quote-line{margin-top:26px;padding:16px 0 16px 20px;border-left:3px solid var(--c-accent);background:var(--c-surface);border-radius:0 var(--r-card) var(--r-card) 0;}
.quote-line p{font-size:16px;color:var(--c-ink);line-height:1.8;}
.timeline{margin-top:30px;display:flex;flex-direction:column;gap:0;}
.tl-item{position:relative;padding:0 0 22px 24px;border-left:1px solid var(--c-line-strong);}
.tl-item:last-child{padding-bottom:0;border-left-color:transparent;}
.tl-item::before{content:"";position:absolute;left:-5px;top:6px;width:9px;height:9px;border-radius:50%;background:var(--c-secondary);}
.tl-item strong{display:block;font-size:15px;color:var(--c-ink);font-weight:600;}
.tl-item span{display:block;margin-top:4px;font-size:14px;color:var(--c-ink-3);line-height:1.8;}

/* 内容卡片 */
.card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:border-color .18s ease,box-shadow .22s ease,transform .22s ease;}
.card:hover{border-color:var(--c-primary-light);box-shadow:var(--sh-lg);transform:translateY(-3px);}
.card__media{overflow:hidden;background:var(--c-fill);}
.card__media img{width:100%;object-fit:cover;transition:transform .4s ease;}
.card--main .card__media img{aspect-ratio:16 / 9;}
.card--sub .card__media img{aspect-ratio:4 / 3;}
.card:hover .card__media img{transform:scale(1.03);}
.card__body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.card__title{font-size:18px;line-height:1.5;font-weight:600;}
.card__title a{color:var(--c-ink);}
.card__title a:hover{color:var(--c-primary);}
.card__desc{margin-top:10px;font-size:14px;color:var(--c-ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card__foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-3);}
.card-stack{display:flex;flex-direction:column;gap:24px;}
.card--sub{flex-direction:row;}
.card--sub .card__media{flex:0 0 40%;}
.card--sub .card__media img{height:100%;aspect-ratio:auto;}
.card--sub .card__body{padding:18px;}
.card--sub .card__title{font-size:16px;}
.card--sub .card__desc{-webkit-line-clamp:2;margin-top:8px;}
.chip{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-tag);background:rgba(31,78,74,.08);color:var(--c-primary);font-size:13px;font-weight:500;}
.tag-hot{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;background:var(--c-accent);color:#fff;font-size:11px;font-weight:600;letter-spacing:.06em;}

/* 最新信息列表 */
.news-list{border-top:1px solid var(--c-line);}
.news-row{display:flex;gap:20px;align-items:flex-start;padding:20px 16px;border-bottom:1px solid var(--c-line);transition:background-color .18s ease;}
.news-row:hover{background:var(--c-surface);}
.news-row__thumb{flex:0 0 160px;width:160px;height:100px;border-radius:var(--r-btn);overflow:hidden;background:var(--c-fill);}
.news-row__thumb img{width:100%;height:100%;object-fit:cover;}
.news-row__body{flex:1 1 auto;min-width:0;}
.news-row__title{font-size:18px;line-height:1.5;font-weight:600;}
.news-row__title a{color:var(--c-ink);}
.news-row__title a:hover{color:var(--c-primary);}
.news-row__desc{margin-top:8px;font-size:14px;color:var(--c-ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-row__meta{margin-top:12px;display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--c-ink-3);}
.news-row__link{font-size:13px;font-weight:600;color:var(--c-primary);border-bottom:1.5px solid rgba(31,78,74,.25);}
.news-row__link:hover{color:var(--c-accent);border-color:var(--c-accent);}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:64px 24px;border:1px dashed var(--c-line-strong);border-radius:var(--r-card);background:var(--c-surface);text-align:center;}
.empty-state svg{width:44px;height:44px;color:var(--c-secondary);}
.empty-state p{font-size:15px;color:var(--c-ink-2);}

/* 信任背书 */
.stat-band{display:flex;flex-wrap:wrap;gap:56px;}
.stat{min-width:160px;}
.stat__num{font-family:var(--font-serif);font-size:40px;line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.stat__label{margin-top:8px;font-size:14px;color:var(--c-ink-2);}
.logo-wall{margin-top:48px;padding:22px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);display:flex;flex-wrap:wrap;gap:28px;font-size:14px;color:var(--c-ink-3);letter-spacing:.04em;}
.logo-wall span{transition:color .18s ease;}
.logo-wall span:hover{color:var(--c-ink);}
.pull-quote{margin-top:56px;text-align:center;max-width:780px;margin-left:auto;margin-right:auto;}
.pull-quote p{font-size:18px;line-height:1.85;color:var(--c-ink-2);}
.pull-quote p::before{content:"“";font-family:var(--font-serif);font-size:40px;color:var(--c-accent);line-height:0;vertical-align:-8px;margin-right:4px;}
.pull-quote p::after{content:"”";font-family:var(--font-serif);font-size:40px;color:var(--c-accent);line-height:0;vertical-align:-14px;margin-left:4px;}
.pull-quote cite{display:block;margin-top:16px;font-size:13px;color:var(--c-ink-3);font-style:normal;}

/* FAQ */
.faq-aside{position:sticky;top:96px;}
.faq-aside p{margin-top:14px;color:var(--c-ink-2);font-size:15px;line-height:1.85;max-width:360px;}
.faq-aside .btn{margin-top:22px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:10px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;}
.faq-item:hover{border-color:var(--c-line-strong);}
.faq-item[open]{border-color:var(--c-primary-light);box-shadow:var(--sh-sm);}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;font-size:16px;font-weight:600;color:var(--c-ink);cursor:pointer;list-style:none;}
.faq-q::-webkit-details-marker{display:none;}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);transition:transform .22s ease;}
.faq-icon::before{width:12px;height:1.6px;transform:translate(-50%,-50%);}
.faq-icon::after{width:1.6px;height:12px;transform:translate(-50%,-50%);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{padding:0 20px 18px;font-size:14px;line-height:1.85;color:var(--c-ink-2);}
.faq-a p{margin:0;}

/* CTA 带 */
.cta-band{background:var(--c-deep);color:rgba(255,255,255,.78);padding-top:72px;padding-bottom:72px;}
.cta-band h2{color:#fff;}
.cta-band p{margin-top:16px;font-size:15px;line-height:1.85;max-width:520px;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{flex:1 1 240px;height:48px;padding:0 16px;border-radius:var(--r-field);border:1px solid rgba(255,255,255,.24);background:#fff;color:var(--c-ink);font-size:15px;transition:box-shadow .18s ease,border-color .18s ease;}
.cta-form input::placeholder{color:var(--c-ink-3);}
.cta-form input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(194,94,51,.28);}
.cta-form .btn{flex:0 0 auto;}
.form-note{margin-top:14px;font-size:12px;color:rgba(255,255,255,.6);}
.form-msg{margin-top:14px;font-size:13px;color:#F0C9B4;display:none;}
.form-msg.is-on{display:block;}

/* 页脚 */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding-top:72px;}
.footer-grid{display:flex;flex-wrap:wrap;gap:40px;}
.footer-brand{flex:1 1 280px;max-width:340px;}
.footer-col{flex:1 1 180px;}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.02em;margin-bottom:18px;font-family:var(--font-sans);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.brand--footer{margin-bottom:4px;}
.brand--footer .brand__mark{background:rgba(255,255,255,.12);}
.brand--footer .brand__name{color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;color:rgba(255,255,255,.55);}

/* 移动端抽屉 */
.drawer-backdrop{position:fixed;inset:0;background:rgba(20,48,45,.45);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:1100;}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;width:min(86vw,340px);height:100%;background:#fff;z-index:1200;transform:translateX(102%);transition:transform .28s ease;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;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer__close{width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;color:var(--c-ink);}
.drawer__close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer__nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer__nav a{display:flex;align-items:center;min-height:52px;font-size:16px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);}
.drawer__nav a.is-active{color:var(--c-primary);font-weight:600;}
.drawer .btn{margin-top:24px;}
body.no-scroll{overflow:hidden;}

/* 响应式 */
@media screen and (max-width:1199px){
  .nav-search input{width:160px;}
  .main-nav{gap:22px;}
}
@media screen and (max-width:1023px){
  :root{--sec-y:64px;}
  .nav-wrap{height:60px;}
  .main-nav,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero__inner{min-height:460px;padding-top:72px;padding-bottom:64px;}
  h1{font-size:32px;}
  h2{font-size:24px;}
  .side-sticky,.faq-aside{position:static;top:auto;}
  .stat-band{gap:36px;}
  .news-row__thumb{flex:0 0 130px;width:130px;height:88px;}
}
@media screen and (max-width:639px){
  :root{--sec-y:48px;}
  body{font-size:16px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:19px;}
  .hero__inner{min-height:380px;padding-top:56px;padding-bottom:48px;}
  .hero__sub{font-size:15px;}
  .hero__actions .btn{width:100%;}
  .nav-cta{display:none;}
  .sec-head{margin-bottom:28px;}
  .news-row{gap:14px;padding:18px 4px;}
  .news-row__thumb{flex:0 0 96px;width:96px;height:64px;}
  .news-row__title{font-size:16px;}
  .news-row__desc{display:none;}
  .card--sub{flex-direction:column;}
  .card--sub .card__media{flex:0 0 auto;}
  .card--sub .card__media img{aspect-ratio:16 / 9;height:auto;}
  .cta-band{padding-top:52px;padding-bottom:52px;}
  .cta-form .btn{width:100%;}
  .footer-grid{gap:28px;}
  .stat__num{font-size:32px;}
  .pull-quote p{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .card:hover{transform:none;}
  .card:hover .card__media img{transform:none;}
}

/* roulang page: article */
:root{
  --c-primary:#1F4E4A;
  --c-primary-dark:#163A37;
  --c-primary-light:#2F6F68;
  --c-accent:#C25E33;
  --c-accent-dark:#A94C26;
  --c-secondary:#7FA88F;
  --c-deep:#14302D;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-fill:#F2EFE8;
  --c-ink:#1B1F1E;
  --c-ink-2:#4A524F;
  --c-ink-3:#7C8582;
  --c-line:#E4DED2;
  --c-line-strong:#D2C9B8;
  --r-card:12px;
  --r-btn:8px;
  --r-tag:6px;
  --sh-sm:0 1px 2px rgba(20,48,45,.05);
  --sh-md:0 6px 18px rgba(20,48,45,.08);
  --sh-lg:0 14px 36px rgba(20,48,45,.12);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","PingFang SC",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;}
a:hover{color:var(--c-accent);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);}
p{margin:0;}
ul,ol{margin:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.row{max-width:1200px;margin-left:auto;margin-right:auto;}
.row .columns{padding-left:12px;padding-right:12px;}
.row.narrow{margin-left:-12px;margin-right:-12px;}
::selection{background:rgba(194,94,51,.18);}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-sm);
}
.header-inner{
  display:flex;align-items:center;gap:28px;min-height:72px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;
}
.brand:hover{color:var(--c-ink);}
.brand__mark{
  width:34px;height:34px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,78,74,.09);color:var(--c-primary);
}
.brand__mark svg{width:20px;height:20px;}
.main-nav{display:flex;align-items:center;gap:30px;margin-left:4px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:8px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--c-ink);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:var(--c-fill);border:1px solid transparent;border-radius:999px;
  transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.search-box svg{width:18px;height:18px;color:var(--c-ink-3);flex:0 0 auto;}
.search-box input{
  border:0;background:transparent;outline:none;height:100%;width:140px;
  font-size:14px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box:focus-within{background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,78,74,.12);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:var(--c-surface);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--c-ink);border-radius:2px;transition:transform .22s ease,opacity .18s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}
.mobile-drawer{
  display:none;background:var(--c-surface);border-top:1px solid var(--c-line);
  padding:12px 20px 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{
  display:flex;align-items:center;min-height:52px;font-size:16px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.mobile-drawer nav a:hover{color:var(--c-primary);}
.mobile-drawer .btn{margin-top:16px;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;border:1.5px solid transparent;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .22s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-accent);color:#fff;}
.btn--primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn--outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn--outline:hover{background:var(--c-primary);color:#fff;}
.btn--light{border-color:rgba(255,255,255,.65);color:#fff;background:transparent;}
.btn--light:hover{background:#fff;color:var(--c-deep);border-color:#fff;}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.btn[disabled]{opacity:.5;cursor:not-allowed;}

/* ===== Chips / Badges ===== */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-tag);
  background:rgba(31,78,74,.08);color:var(--c-primary);
  font-size:13px;line-height:1.7;
}
a.chip:hover{background:rgba(31,78,74,.16);color:var(--c-primary-dark);}
.badge-official{
  display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;
  background:var(--c-accent);color:#fff;font-size:11px;letter-spacing:.06em;font-weight:600;
}

/* ===== Breadcrumb ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:1.7;color:var(--c-ink-3);padding:20px 0 0;
}
.breadcrumb a{color:var(--c-ink-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-line-strong);}
.breadcrumb .current{color:var(--c-ink);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===== Article layout ===== */
.page-main{padding-bottom:0;}
.article-head{padding:24px 0 8px;}
.article-eyebrow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.article-title{
  font-family:var(--font-serif);
  font-size:36px;line-height:1.35;letter-spacing:.02em;
  margin:16px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;line-height:1.7;color:var(--c-ink-3);
  font-variant-numeric:tabular-nums;
}
.article-meta .divider{width:1px;height:12px;background:var(--c-line-strong);}
.article-meta strong{color:var(--c-ink-2);font-weight:500;}
.article-panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:44px 40px;margin-top:24px;box-shadow:var(--sh-sm);
}
.article-content{max-width:720px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--c-ink);word-break:break-word;}
.article-content p{margin:0 0 1.25em;}
.article-content h1,.article-content h2,.article-content h3,.article-content h4{font-family:var(--font-serif);}
.article-content h2{font-size:30px;line-height:1.35;letter-spacing:.015em;margin:1.6em 0 .7em;}
.article-content h3{font-size:22px;line-height:1.45;font-weight:600;margin:1.5em 0 .6em;}
.article-content h4{font-size:18px;line-height:1.5;font-weight:600;margin:1.4em 0 .5em;}
.article-content h2:first-child,.article-content h3:first-child{margin-top:0;}
.article-content ul,.article-content ol{margin:0 0 1.25em;padding-left:1.4em;}
.article-content li{margin-bottom:.45em;line-height:1.9;}
.article-content blockquote{
  margin:0 0 1.4em;padding:16px 20px;background:var(--c-fill);
  border-left:3px solid var(--c-accent);border-radius:0 var(--r-btn) var(--r-btn) 0;
  color:var(--c-ink-2);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content a{color:var(--c-primary);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
.article-content a:hover{color:var(--c-accent);}
.article-content img{border-radius:var(--r-card);margin:1.5em auto;}
.article-content figure{margin:1.5em 0;}
.article-content figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px;line-height:1.7;}
.article-content table{width:100%;border-collapse:collapse;margin:0 0 1.5em;font-size:15px;}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;line-height:1.75;}
.article-content th{background:var(--c-fill);font-weight:600;}
.article-content code{background:var(--c-fill);padding:2px 6px;border-radius:4px;font-size:14px;}
.article-content pre{background:var(--c-deep);color:#EAF2EF;padding:16px 18px;border-radius:var(--r-card);overflow:auto;line-height:1.7;}
.article-content pre code{background:transparent;padding:0;color:inherit;}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}
.empty-state{
  max-width:720px;margin:0 auto;text-align:center;padding:56px 20px;
}
.empty-state svg{width:48px;height:48px;color:var(--c-secondary);margin:0 auto 18px;}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin-bottom:22px;}

/* ===== Tags ===== */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  max-width:720px;margin:32px auto 0;padding-top:24px;border-top:1px solid var(--c-line);
}
.article-tags .label{font-size:13px;color:var(--c-ink-3);}

/* ===== Section head ===== */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{font-family:var(--font-serif);font-size:30px;line-height:1.35;letter-spacing:.015em;}
.section-head .more{font-size:14px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
.section-head .more:hover{color:var(--c-accent);}
.section-sub{margin-top:8px;font-size:14px;color:var(--c-ink-3);}

/* ===== Row list cards ===== */
.read-next{margin-top:72px;}
.list-stack{border-top:1px solid var(--c-line);}
.list-card{
  display:flex;align-items:center;gap:20px;padding:20px 16px;
  border-bottom:1px solid var(--c-line);color:inherit;
  transition:background-color .18s ease,box-shadow .18s ease;
}
.list-card:hover{background:var(--c-fill);color:inherit;}
.list-card:focus-visible{outline:2px solid var(--c-accent);outline-offset:-2px;}
.list-card__thumb{width:160px;height:100px;border-radius:var(--r-btn);overflow:hidden;flex:0 0 auto;background:var(--c-fill);}
.list-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.list-card:hover .list-card__thumb img{transform:scale(1.03);}
.list-card__body{min-width:0;flex:1 1 auto;}
.list-card__body h3{font-size:18px;line-height:1.5;font-weight:600;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.list-card__body p{font-size:14px;line-height:1.75;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px;}
.list-card__meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;}
.list-card__go{flex:0 0 auto;font-size:14px;font-weight:600;color:var(--c-primary);}
.list-card:hover .list-card__go{color:var(--c-accent);}

/* ===== CTA band ===== */
.cta-band{
  margin-top:88px;background:var(--c-deep);color:rgba(255,255,255,.78);
  padding:72px 0;
}
.cta-band h2{color:#fff;font-family:var(--font-serif);font-size:30px;line-height:1.35;letter-spacing:.015em;margin-bottom:14px;}
.cta-band p{max-width:640px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.74);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.6);}
.cta-side{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:24px;}
.cta-side ul{list-style:none;padding:0;margin:0;display:grid;gap:14px;}
.cta-side li{display:flex;gap:10px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.8);}
.cta-side li svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:var(--c-secondary);}

/* ===== Footer ===== */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:34ch;}
.brand--footer{color:#fff;font-size:19px;}
.brand--footer:hover{color:#fff;}
.brand--footer .brand__mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;color:rgba(255,255,255,.55);
}

/* ===== Responsive ===== */
@media screen and (max-width:1023px){
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:60px;gap:16px;}
  .article-title{font-size:30px;}
  .article-panel{padding:32px 24px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-band{padding:56px 0;margin-top:64px;}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  .header-actions .btn--sm{display:none;}
  .article-title{font-size:28px;line-height:1.4;}
  .article-panel{padding:24px 16px;border-radius:var(--r-card);}
  .article-content h2{font-size:22px;}
  .article-content h3{font-size:18px;}
  .breadcrumb{padding-top:16px;}
  .breadcrumb .current{max-width:34ch;}
  .list-card{align-items:flex-start;gap:12px;padding:16px 8px;}
  .list-card__thumb{width:96px;height:64px;}
  .list-card__body h3{font-size:16px;white-space:normal;}
  .list-card__go{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section-head h2{font-size:22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .read-next{margin-top:48px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F4E4A;
  --c-primary-dark:#163A37;
  --c-primary-light:#2F6F68;
  --c-accent:#C25E33;
  --c-accent-dark:#A94C26;
  --c-secondary:#7FA88F;
  --c-deep:#14302D;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-fill:#F2EFE8;
  --c-ink:#1B1F1E;
  --c-ink-2:#4A524F;
  --c-ink-3:#7C8582;
  --c-line:#E4DED2;
  --c-line-strong:#D2C9B8;
  --r-card:12px;
  --r-btn:8px;
  --r-input:8px;
  --r-chip:6px;
  --shadow-sm:0 1px 2px rgba(20,48,45,.05);
  --shadow-md:0 6px 18px rgba(20,48,45,.08);
  --shadow-lg:0 14px 36px rgba(20,48,45,.12);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);color:var(--c-ink);font-weight:700;letter-spacing:.015em}
h1{font-size:40px;line-height:1.28}
h2{font-size:30px;line-height:1.35}
h3{font-size:22px;line-height:1.45;font-weight:600}
p{margin:0 0 1.25em;text-align:left;color:var(--c-ink-2)}
ul,ol{margin:0 0 1.25em;padding-left:1.4em;color:var(--c-ink-2)}
li{margin-bottom:.4em}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:16px}
::selection{background:rgba(194,94,51,.2)}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 栅格 ---------- */
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px;width:100%;min-width:0}
@media (min-width:640px){
  .medium-6{width:50%}
}
@media (min-width:1024px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-6{width:50%}
  .large-8{width:66.6667%}
  .large-9{width:75%}
}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1000;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:var(--shadow-sm)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:72px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand__mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand__mark svg{width:22px;height:22px;display:block}
.brand__name{font-size:20px;font-weight:700;letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:8px}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:25px 0;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:19px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:999px;background:var(--c-fill);border:1px solid transparent;transition:background .18s ease,border-color .18s ease,box-shadow .18s ease}
.search-box svg{width:18px;height:18px;color:var(--c-ink-3);flex:0 0 auto}
.search-box input{width:150px;border:0;background:transparent;outline:none;color:var(--c-ink);font-size:15px}
.search-box input::placeholder{color:var(--c-ink-3)}
.search-box:focus-within{background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,78,74,.14)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-surface);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .18s ease,opacity .18s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-drawer{display:none}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;border:1.5px solid transparent;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .22s ease,box-shadow .18s ease;text-align:center}
.btn--primary{background:var(--c-accent);color:#fff}
.btn--primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn--ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn--ghost:hover{background:var(--c-primary);color:#fff}
.btn--onDark{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn--onDark:hover{background:#fff;color:var(--c-deep);border-color:#fff}
.btn--block{width:100%}
.btn:active{transform:translateY(0);box-shadow:none}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.link-more{color:var(--c-primary);font-weight:600;border-bottom:2px solid var(--c-primary);padding-bottom:2px;transition:color .18s ease,border-color .18s ease}
.link-more:hover{color:var(--c-accent);border-color:var(--c-accent)}

/* ---------- 徽章 / 标签 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-chip);background:rgba(31,78,74,.08);color:var(--c-primary);font-size:13px;line-height:1.7;font-weight:500}
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;background:var(--c-accent);color:#fff;font-size:11px;letter-spacing:.06em;line-height:1.7}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 页头 ---------- */
.page-hero{position:relative;background-color:var(--c-deep);background-image:url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center;color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(20,48,45,.92),rgba(20,48,45,.62))}
.page-hero .container{position:relative;z-index:1;padding-top:36px;padding-bottom:64px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.66);margin-bottom:26px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.page-hero h1{color:#fff;max-width:820px}
.page-hero .lead{max-width:720px;margin:16px 0 24px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.82)}
.page-hero .chip-row .chip{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.18)}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--fill{background:var(--c-fill)}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--c-accent);font-weight:600;margin-bottom:12px}
.section-head h2{margin-bottom:14px}
.section-head p{font-size:16px;color:var(--c-ink-2);margin-bottom:0}

/* ---------- 侧栏 + 正文 ---------- */
.layout{display:flex;flex-wrap:wrap;gap:48px}
.layout__aside{width:100%}
.layout__main{width:100%;min-width:0}
@media (min-width:1024px){
  .layout__aside{width:23%;flex:0 0 23%}
  .layout__main{width:calc(77% - 48px);flex:1 1 auto}
}
.toc{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 20px}
.toc h3{font-family:var(--font-sans);font-size:14px;font-weight:600;letter-spacing:.08em;color:var(--c-ink-3);margin-bottom:14px;text-transform:none}
.toc ul{list-style:none;margin:0;padding:0}
.toc li{margin-bottom:4px}
.toc a{display:block;padding:9px 12px;border-left:2px solid transparent;border-radius:0 6px 6px 0;font-size:14px;color:var(--c-ink-2);transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.toc a:hover{background:var(--c-fill);color:var(--c-primary)}
.toc a.is-current{color:var(--c-primary);font-weight:600;background:var(--c-fill);border-left-color:var(--c-accent)}
.toc-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;line-height:1.75;color:var(--c-ink-3)}
@media (min-width:1024px){
  .toc{position:sticky;top:96px}
}
.article-block{padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--c-line)}
.article-block:last-child{border-bottom:0;padding-bottom:0;margin-bottom:0}
.article-block h2{font-size:26px;margin-bottom:16px}
.article-block p{max-width:720px}
.figure{margin:24px 0 0;max-width:720px}
.figure img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow-sm)}
.figure figcaption{margin-top:10px;font-size:13px;line-height:1.7;color:var(--c-ink-3)}
.note{max-width:720px;background:var(--c-fill);border-left:3px solid var(--c-accent);border-radius:0 var(--r-card) var(--r-card) 0;padding:16px 20px;margin:24px 0 0}
.note p{margin:0;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- 核验清单 ---------- */
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:16px}
@media (min-width:640px){.check-list{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.check-list{grid-template-columns:repeat(3,1fr)}}
.check-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 20px;transition:border-color .18s ease,box-shadow .18s ease,transform .22s ease}
.check-item:hover{border-color:var(--c-primary-light);box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.check-item__no{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:rgba(31,78,74,.08);color:var(--c-primary);font-family:var(--font-serif);font-weight:700;font-size:15px;margin-bottom:14px;font-variant-numeric:tabular-nums}
.check-item h3{font-family:var(--font-sans);font-size:17px;font-weight:600;margin-bottom:8px}
.check-item p{margin:0;font-size:14px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- 数据带 ---------- */
.stat-band{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stat-band .container{padding-top:56px;padding-bottom:56px}
.stat-grid{display:flex;flex-wrap:wrap;gap:32px}
.stat{flex:1 1 220px;min-width:0}
.stat__num{font-family:var(--font-serif);font-size:40px;line-height:1.2;color:var(--c-primary);font-weight:700;font-variant-numeric:tabular-nums}
.stat__num span{font-size:18px;margin-left:4px;color:var(--c-ink-2);font-family:var(--font-sans);font-weight:500}
.stat__label{font-size:14px;color:var(--c-ink-3);margin-top:6px}

/* ---------- 疑点对照 ---------- */
.pair-grid{display:grid;gap:16px}
@media (min-width:768px){.pair-grid{grid-template-columns:repeat(2,1fr)}}
.pair{display:flex;gap:16px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;transition:box-shadow .18s ease,border-color .18s ease}
.pair:hover{box-shadow:var(--shadow-md);border-color:var(--c-line-strong)}
.pair__icon{flex:0 0 auto;width:40px;height:40px;border-radius:10px;background:var(--c-fill);color:var(--c-primary);display:flex;align-items:center;justify-content:center}
.pair__icon svg{width:22px;height:22px}
.pair h3{font-family:var(--font-sans);font-size:16px;font-weight:600;margin-bottom:6px}
.pair p{margin:0;font-size:14px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- 相关分类 ---------- */
.related-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.related-link{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border:1px solid var(--c-line);border-radius:999px;background:var(--c-surface);color:var(--c-ink-2);font-size:15px;font-weight:500;min-height:44px;transition:color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .22s ease}
.related-link:hover{color:var(--c-primary);border-color:var(--c-primary-light);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.related-link svg{width:16px;height:16px;color:var(--c-accent)}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--c-deep);color:#fff;text-align:center}
.cta-band .container{padding-top:72px;padding-bottom:72px}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{max-width:640px;margin:0 auto 28px;color:rgba(255,255,255,.76);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72)}
.site-footer .container{padding-top:64px;padding-bottom:24px}
.footer-grid{display:grid;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:repeat(4,1fr);gap:40px}}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.brand--footer .brand__mark{background:rgba(255,255,255,.14)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0;max-width:300px}
.footer-col h4{font-family:var(--font-sans);font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.6)}

/* ---------- 移动端 ---------- */
@media (max-width:1023px){
  .header-inner{height:60px;gap:12px}
  .brand__name{font-size:18px}
  .main-nav{display:none}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .nav-drawer{position:fixed;inset:0;z-index:1200;background:var(--c-surface);padding:18px 20px 32px;flex-direction:column;gap:6px;overflow-y:auto}
  .nav-drawer.is-open{display:flex}
  .nav-drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);margin-bottom:12px}
  .nav-drawer__close{width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-surface);color:var(--c-primary);font-size:20px;line-height:1;cursor:pointer}
  .nav-drawer nav{display:flex;flex-direction:column}
  .nav-drawer nav a{display:flex;align-items:center;min-height:52px;padding:0 4px;font-size:16px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
  .nav-drawer nav a.is-active{color:var(--c-primary);font-weight:600;box-shadow:inset 2px 0 0 var(--c-accent);padding-left:12px}
  .nav-drawer .btn{margin-top:20px}
  body.nav-open{overflow:hidden}
}
@media (max-width:767px){
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .page-hero .container{padding-top:24px;padding-bottom:44px}
  .page-hero .lead{font-size:15px}
  .layout{gap:32px}
  .article-block h2{font-size:21px}
  .stat__num{font-size:32px}
  .cta-band .container{padding-top:52px;padding-bottom:52px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .btn:hover,.check-item:hover,.related-link:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --c-primary:#1F4E4A;
  --c-primary-dark:#163A37;
  --c-primary-light:#2F6F68;
  --c-accent:#C25E33;
  --c-accent-dark:#A94C26;
  --c-secondary:#7FA88F;
  --c-deep:#14302D;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-fill:#F2EFE8;
  --c-ink:#1B1F1E;
  --c-ink-2:#4A524F;
  --c-ink-3:#7C8582;
  --c-line:#E4DED2;
  --c-line-strong:#D2C9B8;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-tag:6px;
  --shadow-sm:0 1px 2px rgba(20,48,45,.05);
  --shadow-md:0 6px 18px rgba(20,48,45,.08);
  --shadow-lg:0 14px 36px rgba(20,48,45,.12);
  --section:88px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:var(--section) 0;}
.section--tight{padding:64px 0;}
.section--fill{background:var(--c-fill);}
.section__head{max-width:760px;margin-bottom:40px;}
h1,h2,h3{font-family:var(--font-serif);letter-spacing:.015em;}
h1{font-size:40px;line-height:1.28;font-weight:700;letter-spacing:.02em;}
h2{font-size:30px;line-height:1.35;font-weight:700;}
h3{font-size:22px;line-height:1.45;font-weight:600;font-family:var(--font-sans);}
.lead{font-size:17px;line-height:1.9;color:var(--c-ink-2);max-width:720px;}
.meta{font-size:13px;line-height:1.7;color:var(--c-ink-3);font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--shadow-sm);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:20px;letter-spacing:.01em;}
.brand:hover{color:var(--c-ink);}
.brand__mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:var(--c-primary);color:#fff;flex:0 0 auto;}
.brand__mark svg{width:20px;height:20px;}
.brand__name{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left center;transition:transform .22s ease;border-radius:2px;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--c-primary);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{position:relative;display:flex;align-items:center;}
.search-box svg{position:absolute;left:12px;width:18px;height:18px;color:var(--c-ink-3);pointer-events:none;}
.search-box input{
  width:200px;height:40px;border-radius:999px;border:1px solid transparent;
  background:var(--c-fill);padding:0 16px 0 38px;font-size:14px;color:var(--c-ink);
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box input:focus{outline:none;background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,78,74,.12);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;text-align:center;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .22s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-accent);color:#fff;border:1.5px solid var(--c-accent);}
.btn--primary:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn--ghost{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);}
.btn--ghost:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn--ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7);}
.btn--ghost-light:hover{background:#fff;color:var(--c-deep);border-color:#fff;}
.btn--text{padding:0;min-height:auto;color:var(--c-primary);border:0;background:none;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
.btn--text:hover{color:var(--c-accent);}
.header-tools .btn{padding:10px 20px;min-height:40px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--c-line);border-radius:var(--radius-btn);color:var(--c-primary);background:var(--c-surface);
}
.nav-toggle svg{width:22px;height:22px;}
.nav-drawer{
  display:none;border-top:1px solid var(--c-line);background:var(--c-surface);padding:12px 0 20px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;min-height:52px;font-size:16px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.nav-drawer a.is-active{color:var(--c-primary);font-weight:600;}
.nav-drawer .btn{margin-top:16px;width:100%;}

/* ============ 页头 ============ */
.page-hero{
  position:relative;background:var(--c-fill);border-bottom:1px solid var(--c-line);
  padding:56px 0 52px;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-40px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(127,168,143,.28),rgba(127,168,143,0) 68%);
  pointer-events:none;
}
.page-hero__inner{position:relative;z-index:1;max-width:820px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:20px;}
.breadcrumb a{color:var(--c-ink-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span[aria-current]{color:var(--c-ink);}
.page-title{margin-bottom:16px;}
.page-title .kicker{display:block;font-family:var(--font-sans);font-size:14px;font-weight:600;letter-spacing:.14em;color:var(--c-accent);margin-bottom:12px;}
.page-hero p{color:var(--c-ink-2);max-width:720px;}

/* ============ 路径条 ============ */
.path-strip{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;
}
.path-chip{
  display:inline-flex;align-items:center;gap:8px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--radius-tag);
  padding:8px 14px;font-size:13px;color:var(--c-ink-2);font-variant-numeric:tabular-nums;
}
.path-chip b{color:var(--c-primary);font-weight:600;}

/* ============ Zigzag ============ */
.zigzag{display:flex;flex-direction:column;gap:72px;}
.zz-row{display:flex;align-items:center;gap:56px;}
.zz-row--reverse{flex-direction:row-reverse;}
.zz-media{flex:0 0 48%;max-width:48%;}
.zz-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-md);}
.zz-body{flex:1 1 auto;min-width:0;}
.zz-body .zz-index{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;
  background:rgba(31,78,74,.08);color:var(--c-primary);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.zz-body h2{margin-bottom:16px;font-size:28px;}
.zz-body p{color:var(--c-ink-2);margin-bottom:16px;}
.zz-body p:last-of-type{margin-bottom:0;}
.zz-list{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.zz-list li{position:relative;padding-left:26px;font-size:15px;color:var(--c-ink-2);line-height:1.85;}
.zz-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:2px;
  background:var(--c-secondary);
}
.zz-note{
  margin-top:22px;border-left:3px solid var(--c-accent);background:var(--c-fill);
  padding:14px 18px;border-radius:0 var(--radius-tag) var(--radius-tag) 0;
  font-size:14px;color:var(--c-ink-2);
}

/* ============ 清单板块 ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.check-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .18s ease,border-color .18s ease;
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--c-line-strong);}
.check-card__icon{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:10px;background:rgba(31,78,74,.08);color:var(--c-primary);margin-bottom:16px;
}
.check-card__icon svg{width:22px;height:22px;}
.check-card h3{font-size:18px;margin-bottom:10px;}
.check-card p{font-size:15px;color:var(--c-ink-2);line-height:1.85;}

/* ============ 步骤进度 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:19px;height:2px;
  background:linear-gradient(90deg,var(--c-secondary),var(--c-line));
}
.step{position:relative;padding-top:56px;}
.step__dot{
  position:absolute;top:6px;left:0;width:28px;height:28px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.85;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start;}
.faq-aside{position:sticky;top:96px;}
.faq-aside h2{margin-bottom:16px;}
.faq-aside p{color:var(--c-ink-2);font-size:15px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.is-open{border-color:var(--c-primary-light);box-shadow:var(--shadow-md);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .faq-sign{
  flex:0 0 auto;position:relative;width:20px;height:20px;color:var(--c-primary);
  transition:transform .22s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:14px;height:2px;}
.faq-sign::after{width:2px;height:14px;}
.faq-item.is-open .faq-sign{transform:rotate(135deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-item.is-open .faq-a{max-height:460px;}
.faq-a__inner{padding:0 22px 20px;font-size:14px;line-height:1.85;color:var(--c-ink-2);}

/* ============ CTA 带 ============ */
.cta-band{background:var(--c-deep);color:#fff;padding:72px 0;text-align:center;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.72);max-width:640px;margin:0 auto 28px;}
.cta-band .cta-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;}

/* ============ 相关分类 ============ */
.related{border-top:1px solid var(--c-line);padding:36px 0 0;}
.related h3{font-size:16px;margin-bottom:16px;color:var(--c-ink);}
.related-links{display:flex;flex-wrap:wrap;gap:12px;}
.related-links a{
  display:inline-flex;align-items:center;min-height:44px;padding:10px 18px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-tag);
  font-size:14px;color:var(--c-ink-2);
}
.related-links a:hover{border-color:var(--c-primary-light);color:var(--c-primary);box-shadow:var(--shadow-sm);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;color:rgba(255,255,255,.66);}
.brand--footer{color:#fff;}
.brand--footer:hover{color:#fff;}
.brand--footer .brand__mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;font-family:var(--font-sans);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:20px;
  font-size:12px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  :root{--section:64px;}
  .main-nav{display:none;}
  .header-tools .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .zz-row,.zz-row--reverse{flex-direction:column;gap:28px;align-items:stretch;}
  .zz-media{flex:1 1 auto;max-width:100%;}
  .zigzag{gap:56px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-aside{position:static;}
  .check-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .steps::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:639px){
  :root{--section:48px;}
  .container{padding:0 16px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .header-inner{gap:12px;min-height:60px;}
  .brand{font-size:18px;}
  .header-tools .btn{display:none;}
  .page-hero{padding:36px 0 40px;}
  .path-strip{gap:8px;}
  .check-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:52px 0;}
  .cta-band .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .check-card:hover{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1F4E4A;
  --c-primary-dark:#163A37;
  --c-primary-light:#2F6F68;
  --c-accent:#C25E33;
  --c-accent-dark:#A94C26;
  --c-secondary:#7FA88F;
  --c-deep:#14302D;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-fill:#F2EFE8;
  --c-ink:#1B1F1E;
  --c-ink-2:#4A524F;
  --c-ink-3:#7C8582;
  --c-line:#E4DED2;
  --c-line-strong:#D2C9B8;
  --r-card:12px;
  --r-btn:8px;
  --r-input:8px;
  --r-chip:6px;
  --sh-sm:0 1px 2px rgba(20,48,45,.05);
  --sh-md:0 6px 18px rgba(20,48,45,.08);
  --sh-lg:0 14px 36px rgba(20,48,45,.12);
  --sp-section:88px;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-title:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"PingFang SC","Microsoft YaHei",serif;
}

*,
*::before,
*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}

body.no-scroll{overflow:hidden;}

h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--c-ink);
  font-family:var(--font-title);
  text-align:left;
  letter-spacing:.015em;
}

h1{font-size:40px;line-height:1.28;font-weight:700;letter-spacing:.02em;}
h2{font-size:30px;line-height:1.35;font-weight:700;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
h4{font-size:18px;line-height:1.5;font-weight:600;}

p{margin:0 0 1.25em;color:var(--c-ink-2);}
p:last-child{margin-bottom:0;}

a{
  color:var(--c-primary);
  text-decoration:none;
  transition:color 180ms ease,background-color 180ms ease,border-color 180ms ease;
}
a:hover{color:var(--c-accent);}
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:2px;
}

img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}

[hidden]{display:none !important;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

.section{padding-top:var(--sp-section);padding-bottom:0;}
.section--tight{padding-top:64px;}
.section--last{padding-bottom:var(--sp-section);}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{margin-bottom:8px;}
.section-head .section-sub{
  font-size:15px;
  color:var(--c-ink-3);
  line-height:1.8;
  max-width:680px;
  margin:0;
}
.section-head .text-link{
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
}
.section-head .text-link:hover{
  color:var(--c-accent);
  border-bottom-color:var(--c-accent);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-sm);
}

.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--c-ink);
  font-weight:700;
  font-size:20px;
  letter-spacing:.01em;
}
.brand:hover{color:var(--c-ink);}
.brand__mark{
  width:34px;
  height:34px;
  border-radius:9px;
  background:var(--c-primary);
  color:#fff;
  display:grid;
  place-items:center;
  flex:0 0 auto;
}
.brand__mark svg{width:20px;height:20px;}
.brand__name{white-space:nowrap;}

.main-nav{
  display:flex;
  align-items:center;
  gap:32px;
  margin:0 auto;
}
.main-nav a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-2);
  padding:6px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--c-accent);
  opacity:0;
  transform:translateY(6px);
  transition:opacity 180ms ease,transform 180ms ease;
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{opacity:.45;transform:translateY(0);}
.main-nav a.is-active{color:var(--c-ink);font-weight:600;}
.main-nav a.is-active::after{opacity:1;transform:translateY(0);}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}

.search-box{
  position:relative;
  display:flex;
  align-items:center;
  height:40px;
  width:200px;
  background:var(--c-fill);
  border:1px solid transparent;
  border-radius:999px;
  padding:0 14px;
  transition:background-color 180ms ease,border-color 180ms ease,box-shadow 180ms ease;
}
.search-box svg{
  width:18px;
  height:18px;
  color:var(--c-ink-3);
  flex:0 0 auto;
  margin-right:8px;
}
.search-box input{
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  color:var(--c-ink);
  width:100%;
  height:100%;
  margin:0;
  box-shadow:none;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box:focus-within{
  background:var(--c-surface);
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(31,78,74,.14);
}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-surface);
  color:var(--c-ink);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color 180ms ease,color 180ms ease;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.nav-toggle svg{width:22px;height:22px;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
  padding:12px 20px 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{
  min-height:52px;
  display:flex;
  align-items:center;
  font-size:16px;
  color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.mobile-drawer nav a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-drawer .drawer-cta{margin-top:16px;display:block;text-align:center;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease,transform 220ms ease,box-shadow 220ms ease;
}
.btn--primary{
  background:var(--c-accent);
  border-color:var(--c-accent);
  color:#fff;
}
.btn--primary:hover{
  background:var(--c-accent-dark);
  border-color:var(--c-accent-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-md);
}
.btn--ghost{
  background:transparent;
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn--ghost:hover{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  transform:translateY(-1px);
}
.btn--outline-light{
  background:transparent;
  border-color:rgba(255,255,255,.7);
  color:#fff;
}
.btn--outline-light:hover{
  background:#fff;
  border-color:#fff;
  color:var(--c-deep);
}
.btn:disabled,
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- Chips ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:var(--r-chip);
  background:rgba(31,78,74,.08);
  color:var(--c-primary);
  font-size:13px;
  line-height:1.7;
  font-weight:500;
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:3px 8px;
  border-radius:4px;
  background:var(--c-accent);
  color:#fff;
  font-size:11px;
  font-weight:600;
  letter-spacing:.06em;
  line-height:1.6;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-ink-3);
  padding-top:20px;
}
.breadcrumb a{color:var(--c-ink-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-line-strong);}
.breadcrumb .current{color:var(--c-ink);}

/* ---------- Page hero ---------- */
.page-hero{
  background:var(--c-fill);
  border-bottom:1px solid var(--c-line);
  padding-bottom:56px;
}
.page-hero__grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
  padding-top:32px;
}
.page-hero h1{margin:16px 0 16px;}
.page-hero__lead{
  font-size:16px;
  color:var(--c-ink-2);
  max-width:600px;
  margin-bottom:28px;
}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:12px;}
.page-hero__media{
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-lg);
  background:var(--c-surface);
}
.page-hero__media img{
  width:100%;
  height:auto;
  aspect-ratio:4/3;
  object-fit:cover;
}

/* ---------- Tabs ---------- */
.tab-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:32px;
}
.tab-pill{
  min-height:44px;
  padding:10px 22px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:var(--c-fill);
  color:var(--c-ink-2);
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease,transform 220ms ease;
}
.tab-pill:hover{
  color:var(--c-primary);
  border-color:var(--c-primary-light);
}
.tab-pill.is-active{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  transform:translateY(-1px);
}

.tab-panel{animation:fadeIn 220ms ease both;}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}

.service-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--c-fill);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:box-shadow 220ms ease,transform 220ms ease;
}
.service-card:hover{
  box-shadow:var(--sh-lg);
  transform:translateY(-3px);
}
.service-card__media{
  overflow:hidden;
  background:var(--c-line);
}
.service-card__media img{
  width:100%;
  height:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 400ms ease;
}
.service-card:hover .service-card__media img{transform:scale(1.04);}
.service-card__body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:24px 22px 26px;
  flex:1 1 auto;
}
.service-card__body h3{font-size:18px;line-height:1.5;}
.service-card__body p{
  font-size:14px;
  line-height:1.85;
  color:var(--c-ink-2);
  margin:0;
}
.service-card__body .text-link{
  margin-top:auto;
  padding-top:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  border-bottom:2px solid transparent;
  align-self:flex-start;
  padding-bottom:2px;
}
.service-card__body .text-link:hover{
  color:var(--c-accent);
  border-bottom-color:var(--c-accent);
}

/* ---------- Scene list ---------- */
.scene-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:36px;
}
.scene-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 32px;
}
.scene-item{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--c-line);
}
.scene-item__icon{
  flex:0 0 auto;
  width:36px;
  height:36px;
  border-radius:10px;
  background:rgba(127,168,143,.18);
  color:var(--c-primary);
  display:grid;
  place-items:center;
}
.scene-item__icon svg{width:20px;height:20px;}
.scene-item h3{
  font-size:16px;
  font-family:var(--font-body);
  font-weight:600;
  margin-bottom:4px;
}
.scene-item p{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin:0;}

/* ---------- Steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.step{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 22px;
  transition:border-color 180ms ease,box-shadow 220ms ease,transform 220ms ease;
}
.step:hover{
  border-color:var(--c-primary-light);
  box-shadow:var(--sh-md);
  transform:translateY(-3px);
}
.step:not(:last-child)::after{
  content:"";
  position:absolute;
  top:52px;
  right:-24px;
  width:24px;
  height:1px;
  background:var(--c-line-strong);
}
.step__num{
  font-family:var(--font-title);
  font-size:30px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1;
  font-variant-numeric:tabular-nums;
  display:block;
  margin-bottom:14px;
}
.step h3{font-size:17px;font-family:var(--font-body);font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.85;color:var(--c-ink-2);margin:0;}

/* ---------- Stat band ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  padding:44px 36px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
}
.stat{
  text-align:left;
  padding-left:24px;
  border-left:3px solid var(--c-secondary);
}
.stat__num{
  font-family:var(--font-title);
  font-size:40px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1.15;
  font-variant-numeric:tabular-nums;
  display:block;
}
.stat__num small{font-size:16px;font-family:var(--font-body);font-weight:600;margin-left:4px;}
.stat__label{font-size:14px;color:var(--c-ink-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:48px;
  align-items:start;
}
.faq-intro{position:sticky;top:96px;}
.faq-intro h2{margin-bottom:14px;}
.faq-intro p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}

.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:10px;
  overflow:hidden;
  transition:border-color 180ms ease,box-shadow 220ms ease;
}
.faq-item:hover{border-color:var(--c-line-strong);}
.faq-item.is-open{
  border-color:var(--c-primary-light);
  box-shadow:var(--sh-md);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  min-height:44px;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;
  width:20px;
  height:20px;
  color:var(--c-accent);
  transition:transform 220ms ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 220ms ease;
}
.faq-a__inner{
  padding:0 20px 20px;
  font-size:14px;
  line-height:1.85;
  color:var(--c-ink-2);
  border-top:1px solid var(--c-line);
  padding-top:14px;
  margin:0 0 0;
}
.faq-a__inner p{margin:0;font-size:14px;color:var(--c-ink-2);}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--c-deep);
  border-radius:var(--r-card);
  padding:64px 40px;
  text-align:center;
  margin-top:var(--sp-section);
}
.cta-band h2{
  color:#fff;
  margin-bottom:14px;
}
.cta-band p{
  color:rgba(255,255,255,.72);
  max-width:660px;
  margin:0 auto 28px;
  font-size:15px;
  line-height:1.9;
}
.cta-actions{
  display:flex;
  gap:12px;
  justify-content:center;
  flex-wrap:wrap;
}

/* ---------- Related links ---------- */
.related{
  margin-top:56px;
  padding-top:28px;
  border-top:1px solid var(--c-line);
}
.related h3{
  font-size:16px;
  font-family:var(--font-body);
  font-weight:600;
  margin-bottom:14px;
}
.related-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
}
.related-links a{
  font-size:15px;
  color:var(--c-primary);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
}
.related-links a:hover{
  color:var(--c-accent);
  border-bottom-color:var(--c-accent);
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:var(--sp-section);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
}
.brand--footer{color:#fff;}
.brand--footer:hover{color:#fff;}
.brand--footer .brand__mark{background:var(--c-secondary);color:var(--c-deep);}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.72);
  margin-top:14px;
  max-width:320px;
}
.footer-col h4{
  font-family:var(--font-body);
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  color:rgba(255,255,255,.72);
  font-size:14px;
}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:12px;
  color:rgba(255,255,255,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  :root{--sp-section:64px;}
  h1{font-size:32px;}
  h2{font-size:24px;}
  h3{font-size:20px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .search-box{width:170px;}
  .page-hero__grid{grid-template-columns:1fr;gap:32px;padding-top:24px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step:not(:last-child)::after{display:none;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-intro{position:static;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}

@media (max-width:639px){
  :root{--sp-section:48px;}
  body{font-size:16px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  .container{padding-left:16px;padding-right:16px;}
  .header-inner{min-height:60px;gap:12px;}
  .brand{font-size:17px;}
  .brand__mark{width:30px;height:30px;border-radius:8px;}
  .search-box{display:none;}
  .header-actions .btn{display:none;}
  .page-hero{padding-bottom:40px;}
  .page-hero__actions .btn{width:100%;}
  .card-grid{grid-template-columns:1fr;gap:16px;}
  .scene-panel{padding:24px 18px;}
  .scene-list{grid-template-columns:1fr;gap:0;}
  .steps{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;padding:28px 20px;gap:20px;}
  .stat{padding-left:18px;}
  .cta-band{padding:44px 20px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:0.01ms !important;animation-duration:0.01ms !important;}
  .service-card:hover,
  .step:hover,
  .btn:hover{transform:none;}
  .service-card:hover .service-card__media img{transform:none;}
}