/* ============================================================
   润安势·自贡站 子站主题 · 样式表（原型C · 横幅+杂志）
   视觉：钢灰 + 安全橙 · 杂志式章节
   类前缀：rzg-
   ============================================================ */
:root{
  --primary:#EA580C;--primary-2:#F97316;--steel:#33404D;--steel-2:#46586A;
  --bg:#F7F6F3;--bg-alt:#EFEEE9;--line:#DFDCD3;
  --heading:#232B33;--ink:#2E3742;--muted:#6E7681;
  --radius:6px;--radius-s:4px;
  --shadow:0 8px 22px rgba(35,43,51,.10);
  --shadow-h:0 14px 32px rgba(35,43,51,.16);
  --gradient:linear-gradient(135deg,#26313C,#3D4C5C);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px;}
body.rzg-noscroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:var(--primary-2);}
h1,h2,h3,h4{color:var(--heading);line-height:1.35;margin:0 0 .5em;}
p{margin:0 0 1em;}

/* 按钮（方角，工业感） */
.rzg-btn{display:inline-block;padding:.7em 1.6em;border-radius:var(--radius-s);font-weight:700;border:1px solid transparent;transition:background .2s,color .2s;cursor:pointer;}
.rzg-btn--accent{background:var(--primary);color:#fff;}
.rzg-btn--accent:hover{background:var(--primary-2);color:#fff;}
.rzg-btn--line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.rzg-btn--primary{background:var(--steel);color:#fff;}
.rzg-btn--primary:hover{background:var(--steel-2);color:#fff;}
.rzg-btn--outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.rzg-btn--lg{padding:.85em 2.1em;font-size:1.05rem;}

/* 顶部：品牌 + 导航 */
.rzg-header{position:sticky;top:0;z-index:40;background:rgba(247,246,243,.95);backdrop-filter:blur(8px);border-bottom:3px solid var(--steel);}
.rzg-header__bar{max-width:1180px;margin:0 auto;padding:12px 20px 8px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.rzg-brand{display:flex;align-items:center;gap:14px;min-width:0;}
.rzg-brand__logo{flex:none;}
.rzg-brand__img{height:42px;width:auto;}
.rzg-brand__title{display:flex;flex-direction:column;border-left:3px solid var(--primary);padding-left:14px;line-height:1.3;min-width:0;}
.rzg-brand__text,.rzg-brand__name{font-size:21px;font-weight:800;color:var(--heading);white-space:nowrap;}
.rzg-brand__meta{font-size:12px;color:var(--muted);white-space:nowrap;}
.rzg-brand__meta b{color:var(--primary);}
.rzg-nav{max-width:1180px;margin:0 auto;padding:0 20px 10px;display:flex;gap:4px;flex-wrap:wrap;}
.rzg-nav__link{padding:8px 14px;color:var(--ink);font-weight:600;font-size:15px;border-bottom:3px solid transparent;}
.rzg-nav__link:hover{color:var(--primary);}
.rzg-nav__link--on{color:var(--primary);border-bottom-color:var(--primary);}
.rzg-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer;}
.rzg-burger span{width:22px;height:2px;background:var(--heading);}

/* 移动抽屉 */
.rzg-drawer{position:fixed;top:0;right:0;bottom:0;width:78%;max-width:320px;background:#fff;z-index:60;transform:translateX(105%);transition:transform .25s ease;display:flex;flex-direction:column;padding:18px;}
.rzg-drawer--open{transform:translateX(0);}
.rzg-drawer__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;}
.rzg-drawer__name{font-weight:700;color:var(--heading);}
.rzg-drawer__close{background:none;border:0;font-size:26px;color:var(--muted);cursor:pointer;line-height:1;}
.rzg-drawer__nav{display:flex;flex-direction:column;}
.rzg-drawer__link{padding:12px 6px;border-bottom:1px solid var(--line);color:var(--ink);font-weight:600;}
.rzg-drawer__link--on{color:var(--primary);}
.rzg-drawer__tel{margin-top:auto;background:var(--primary);color:#fff;text-align:center;padding:12px;border-radius:var(--radius-s);font-weight:700;}
.rzg-scrim{position:fixed;inset:0;background:rgba(35,43,51,.45);z-index:50;opacity:0;pointer-events:none;transition:opacity .2s;}
.rzg-drawer--open ~ .rzg-scrim{opacity:1;pointer-events:auto;}

/* 全宽横幅压顶 */
.rzg-main{display:block;}
.rzg-banner{background:var(--gradient);color:#fff;}
.rzg-banner__inner{max-width:1180px;margin:0 auto;padding:64px 20px;}
.rzg-banner__inner--center{text-align:center;}
.rzg-banner__badge{display:inline-block;border:1px solid var(--primary);color:var(--primary-2);padding:4px 14px;font-size:13px;letter-spacing:.14em;margin-bottom:16px;}
.rzg-banner__title{color:#fff;font-size:clamp(32px,4.6vw,48px);letter-spacing:.05em;margin:0 0 .4em;}
.rzg-banner__title--sm{font-size:clamp(24px,3vw,34px);}
.rzg-banner__sub{color:rgba(255,255,255,.82);max-width:720px;}
.rzg-banner__inner--center .rzg-banner__sub{margin:0 auto;}
.rzg-banner__actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px;}

/* 杂志章节标题 */
.rzg-chapter{display:flex;gap:18px;align-items:flex-start;margin-bottom:26px;}
.rzg-chapter__no{flex:none;font-size:44px;font-weight:800;color:var(--primary);line-height:1;opacity:.9;}
.rzg-chapter__body{min-width:0;}
.rzg-eyebrow{display:inline-block;font-size:13px;letter-spacing:.18em;color:var(--muted);font-weight:700;margin-bottom:6px;}
.rzg-sec__title{font-size:clamp(22px,2.8vw,30px);}
.rzg-sec__title--sm{font-size:20px;}

/* 区块通用 */
.rzg-sec{padding:56px 0;}
.rzg-sec--alt{background:var(--bg-alt);}
.rzg-sec--tight{padding:26px 0;}
.rzg-sec__inner{max-width:1180px;margin:0 auto;padding:0 20px;}
.rzg-sec__head{margin-bottom:22px;}
.rzg-sec__head--center{text-align:center;}
.rzg-sec__lead{color:var(--muted);}
.rzg-morelink{font-weight:700;}
.rzg-region{display:inline-block;background:var(--steel);color:#fff;border-radius:2px;padding:0 6px;font-size:12px;font-weight:700;margin-right:6px;vertical-align:2px;}

/* 广告图 */
.rzg-ad__img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);}

/* 关于（折叠简介） */
.rzg-about__full{max-height:250px;overflow:hidden;position:relative;-webkit-mask-image:linear-gradient(180deg,#000 78%,transparent);mask-image:linear-gradient(180deg,#000 78%,transparent);}
.rzg-about__full.rzgopen{max-height:none;-webkit-mask-image:none;mask-image:none;}
.rzg-about__full p{margin:0 0 .8em;}
.rzg-about__full img{display:none;}
.rzg-about__btn{display:inline-block;margin-top:12px;padding:4px 0;border:0;background:none;color:var(--primary);font-size:14px;font-weight:700;cursor:pointer;}
.rzg-about__linkwrap{margin-top:14px;}

/* 杂志图文交替 */
.rzg-feature{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;padding:22px 0;border-top:1px solid var(--line);}
.rzg-feature:first-of-type{border-top:0;}
.rzg-feature--rev .rzg-feature__media{order:2;}
.rzg-feature__media{margin:0;}
.rzg-feature__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow);}
.rzg-feature__text h3{font-size:19px;}
.rzg-feature__text p{color:var(--muted);margin:0;}
.rzg-pull{margin:28px 0 0;padding:18px 24px;border-left:4px solid var(--primary);background:#fff;font-size:17px;color:var(--heading);border-radius:0 var(--radius) var(--radius) 0;}
.rzg-pull p{margin:0;}

/* 多列小卡 */
.rzg-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.rzg-colcard{background:#fff;border:1px solid var(--line);border-top:3px solid var(--primary);border-radius:var(--radius);padding:18px;}
.rzg-colcard h3{font-size:16px;}
.rzg-colcard p{font-size:14px;color:var(--muted);margin:0;}
.rzg-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;}
.rzg-grid--2{grid-template-columns:repeat(2,1fr);}
.rzg-grid--4{grid-template-columns:repeat(4,1fr);}
.rzg-grid--3{grid-template-columns:repeat(3,1fr);}
.rzg-grid--gap{margin-top:18px;}
.rzg-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.rzg-card__link{display:block;color:inherit;}
.rzg-card__img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.rzg-card__title{font-size:16px;padding:12px 14px 4px;margin:0;}
.rzg-card__desc{font-size:14px;color:var(--muted);padding:0 14px 12px;margin:0;}
.rzg-pic{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.rzg-pic img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.rzg-pic figcaption{padding:8px 10px;font-size:13px;font-weight:600;color:var(--heading);}
.rzg-empty{color:var(--muted);text-align:center;padding:26px 0;}

/* 新闻列表 */
.rzg-newslist{display:flex;flex-direction:column;}
.rzg-newsrow{display:flex;align-items:center;gap:10px;padding:13px 4px;border-bottom:1px solid var(--line);}
.rzg-newsrow__title{flex:1;color:var(--ink);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.rzg-newsrow__title:hover{color:var(--primary);}
.rzg-newsrow__date{color:var(--muted);font-size:13px;white-space:nowrap;}

/* FAQ */
.rzg-faq{display:flex;flex-direction:column;gap:10px;}
.rzg-faq details{background:#fff;border:1px solid var(--line);border-left:3px solid var(--primary);border-radius:var(--radius);padding:2px 16px;}
.rzg-faq summary{cursor:pointer;font-weight:700;color:var(--heading);padding:10px 0;}
.rzg-faq__body{padding:2px 0 12px;color:var(--ink);}
.rzg-faq__body p{margin:0;}

/* 分站互联 */
.rzg-citylinks{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;}
.rzg-citylinks__item{display:flex;flex-direction:column;gap:2px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;}
.rzg-citylinks__item:hover{border-color:var(--primary);}
.rzg-citylinks__region{font-weight:800;color:var(--heading);}
.rzg-citylinks__site{font-size:12px;color:var(--muted);}
.rzg-fold{display:none;}
.rzg-open .rzg-fold{display:flex;}
.rzg-citymore{display:block;margin:16px auto 0;padding:8px 26px;border-radius:var(--radius-s);border:1px solid var(--primary);background:none;color:var(--primary);font-weight:700;cursor:pointer;}

/* 关联企业推荐（编号行） */
.rzg-partners{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px;counter-reset:pt;}
.rzg-partners__item{display:flex;justify-content:space-between;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 14px;}
.rzg-partners__item::before{counter-increment:pt;content:counter(pt,decimal-leading-zero);font-weight:800;color:var(--primary);margin-right:8px;}
.rzg-partners__item b{color:var(--heading);font-size:14px;flex:1;}
.rzg-partners__item span{color:var(--muted);font-size:12px;white-space:nowrap;}
.rzg-partners--chips{display:flex;flex-wrap:wrap;gap:10px;}
.rzg-partners__chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;color:var(--ink);font-weight:600;font-size:14px;}
.rzg-partners__chip:hover{border-color:var(--primary);color:var(--primary);}

/* CTA */
.rzg-cta .rzg-cta__phone,.rzg-cta__phone{display:inline-block;font-size:clamp(30px,4.4vw,44px);font-weight:800;color:#fff;margin:8px 0 0;letter-spacing:.03em;}
.rzg-cta__phone:hover{color:var(--primary-2);}

/* 内页通用 */
.rzg-layout{max-width:1180px;margin:0 auto;padding:36px 20px;display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start;}
.rzg-post{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;}
.rzg-post__kicker{color:var(--primary);font-weight:700;font-size:13px;letter-spacing:.1em;}
.rzg-post__title{font-size:24px;margin:.2em 0 .3em;}
.rzg-post__meta{color:var(--muted);font-size:13px;border-bottom:1px solid var(--line);padding-bottom:12px;}
.rzg-post__thumb{margin:16px 0;}
.rzg-post__body{color:var(--ink);}
.rzg-post__body img{border-radius:var(--radius-s);}
.rzg-post__back{margin-top:20px;}
.rzg-post__cta{margin-top:20px;border-top:1px solid var(--line);padding-top:16px;}
.rzg-side{background:#fff;border:1px solid var(--line);border-top:3px solid var(--primary);border-radius:var(--radius);padding:20px;}
.rzg-side__title{font-size:18px;border-bottom:1px solid var(--line);padding-bottom:8px;}
.rzg-side__list{list-style:none;margin:0;padding:0;}
.rzg-side__item{padding:10px 0;border-bottom:1px dashed var(--line);display:flex;flex-direction:column;gap:2px;}
.rzg-side__link{color:var(--ink);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.rzg-side__date{color:var(--muted);font-size:12px;}
.rzg-side__more{display:inline-block;margin-top:12px;font-weight:700;}
.rzg-side__block{border-bottom:1px dashed var(--line);padding:12px 0;}
.rzg-side__h{font-size:15px;color:var(--primary);}
.rzg-side__p{font-size:13px;color:var(--muted);margin:0;}
.rzg-side__ul{list-style:none;margin:0;padding:0;font-size:14px;}
.rzg-side__ul li{padding:3px 0;}
.rzg-side__ul li::before{content:"— ";color:var(--primary);}
.rzg-side__tags{display:flex;flex-wrap:wrap;gap:8px;}
.rzg-tag{background:var(--bg-alt);color:var(--steel);border-radius:2px;padding:2px 8px;font-size:12px;}
.rzg-prodhero{background:var(--gradient);}
.rzg-prodhero__inner{max-width:1180px;margin:0 auto;padding:44px 20px;display:grid;grid-template-columns:1fr 1.1fr;gap:32px;align-items:center;}
.rzg-prodhero__media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-h);}
.rzg-prodhero__kicker{color:var(--primary-2);font-weight:700;font-size:13px;letter-spacing:.1em;}
.rzg-prodhero__title{color:#fff;font-size:clamp(22px,2.6vw,30px);}
.rzg-prodhero__desc{color:rgba(255,255,255,.85);}
.rzg-prodhero__info{list-style:none;margin:0 0 18px;padding:0;font-size:14px;color:rgba(255,255,255,.85);}
.rzg-prodhero__info li{padding:6px 0;border-bottom:1px dashed rgba(255,255,255,.25);}
.rzg-prodhero__info span{display:inline-block;width:76px;color:rgba(255,255,255,.6);}
.rzg-prodhero__info a{color:#fff;font-weight:700;}
.rzg-prodhero__actions{display:flex;gap:12px;flex-wrap:wrap;}
.rzg-prodshow{padding:36px 0;}
.rzg-prodshow__title{font-size:22px;}
.rzg-prose{color:var(--ink);max-width:860px;}
.rzg-prose p{margin:0 0 .8em;}
.rzg-qual{white-space:normal;}
.rzg-contact{max-width:640px;margin:0 auto 26px;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;}
.rzg-contact__item{display:flex;border-bottom:1px solid var(--line);}
.rzg-contact__k{flex:none;width:130px;background:var(--bg-alt);padding:13px 16px;font-weight:700;color:var(--heading);font-size:14px;}
.rzg-contact__v{padding:13px 16px;color:var(--ink);}
.rzg-steps{list-style:none;counter-reset:st;margin:0 auto;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:900px;}
.rzg-steps li{counter-increment:st;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;}
.rzg-steps li::before{content:"0" counter(st);display:block;font-weight:800;color:var(--primary);}
.rzg-steps b{display:block;color:var(--heading);}
.rzg-steps span{font-size:13px;color:var(--muted);}
.rzg-pager{margin-top:24px;text-align:center;}
.pagination{display:inline-flex;flex-wrap:wrap;gap:6px;}
.pagination a,.pagination span{display:inline-block;min-width:34px;padding:6px 10px;border:1px solid var(--line);border-radius:var(--radius-s);background:#fff;color:var(--ink);font-size:14px;text-align:center;}
.pagination span{background:var(--steel);color:#fff;border-color:transparent;font-weight:700;}
.pagination a:hover{border-color:var(--primary);color:var(--primary);}

/* 页脚 */
.rzg-foot{background:#232B33;color:#9FACB9;margin-top:40px;}
.rzg-foot__inner{max-width:1180px;margin:0 auto;padding:36px 20px 24px;}
.rzg-nap{font-size:13px;color:#7E8B98;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:14px;}
.rzg-nap p{margin:0 0 4px;}
.rzg-foot__cities{display:flex;flex-wrap:wrap;gap:8px 18px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12);}
.rzg-foot__city{color:#9FACB9;font-size:13px;}
.rzg-foot__city:hover{color:#fff;}
.rzg-foot__bar{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;padding-top:16px;font-size:13px;}
.rzg-foot__copy{margin:0;color:#7E8B98;}
.rzg-foot__links{margin:0;display:flex;gap:14px;}
.rzg-foot__links a{color:#9FACB9;}
.rzg-foot__tel{font-weight:800;color:#fff;font-size:18px;}
.rzg-dial{display:none;}

/* 响应式 */
@media (max-width:960px){
  .rzg-nav{display:none;}
  .rzg-burger{display:flex;}
  .rzg-layout{grid-template-columns:1fr;}
  .rzg-prodhero__inner{grid-template-columns:1fr;}
  .rzg-feature{grid-template-columns:1fr;}
  .rzg-feature--rev .rzg-feature__media{order:0;}
  .rzg-cols{grid-template-columns:repeat(2,1fr);}
  .rzg-grid--3,.rzg-grid--4{grid-template-columns:repeat(2,1fr);}
  .rzg-grid--2{grid-template-columns:1fr;}
  .rzg-steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .rzg-brand__img{height:34px;}
  .rzg-brand__name{font-size:17px;}
  .rzg-brand__meta{font-size:11px;}
  .rzg-cols,.rzg-grid--3,.rzg-grid--4,.rzg-steps{grid-template-columns:1fr;}
  .rzg-sec{padding:40px 0;}
  .rzg-dial{display:flex;position:fixed;left:12px;right:12px;bottom:12px;z-index:30;background:var(--primary);color:#fff;justify-content:center;padding:12px;border-radius:var(--radius-s);font-weight:700;box-shadow:var(--shadow-h);}
  .rzg-foot{padding-bottom:70px;}
}