/* ============================================================
   主题二 · 黄土剪纸  —— 窑洞拱窗 / 窗花 / 剪纸红 / 黄土地
   ============================================================ */
:root{
  --loess:#f4e7cd; --loess-2:#ecd9b2; --card:#fdf6e6;
  --clay:#8a5a2b; --clay-deep:#6b431e;
  --red:#cf3b2c; --red-deep:#a82c20; --yellow:#e0a63e;
  --ink:#4a2f18; --ink-soft:#7a5f3d; --line:#e0cda3;
  --font-title:"STKaiti","KaiTi","Microsoft YaHei",sans-serif;
  --font-body:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font-body);color:var(--ink);background:var(--loess);line-height:1.75}
a{color:inherit;text-decoration:none}
.container{width:1200px;max-width:94%;margin:0 auto}

/* 顶部工具条 */
.topbar{background:var(--red-deep);color:#fbeed7;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;height:38px;align-items:center}
.topbar a{margin-left:22px;opacity:.9}
.topbar a:hover{color:#fff;text-decoration:underline}
.topbar-left a:first-child{margin-left:0}

/* 头部 */
.site-header{background:var(--card);border-bottom:4px solid var(--red);position:relative}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:10px;
  background:repeating-linear-gradient(90deg,var(--red) 0 14px,transparent 14px 28px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:24px 0}
.brand{display:flex;align-items:center;gap:16px}
.brand-seal{width:66px;height:66px;background:var(--red);color:#fff8e8;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-title);font-size:36px;flex:none;border-radius:50%;
  box-shadow:0 0 0 3px var(--card),0 0 0 5px var(--yellow)}
.brand-name{font-family:var(--font-title);font-size:33px;font-weight:700;letter-spacing:5px;color:var(--red-deep)}
.brand-sub{font-size:12px;letter-spacing:2.5px;color:var(--ink-soft);margin-top:2px}
.header-search{display:flex;border:2px solid var(--red);border-radius:999px;overflow:hidden;background:#fff}
.header-search input{border:0;outline:0;padding:10px 20px;width:230px;font-size:14px;background:transparent}
.header-search button{border:0;background:var(--red);color:#fff;padding:0 26px;cursor:pointer;font-size:15px;letter-spacing:2px}
.header-search button:hover{background:var(--red-deep)}

/* 导航 —— 拱形窑洞门 */
.main-nav{background:var(--red);position:relative;z-index:50;padding-top:6px}
.nav-list{display:flex;list-style:none;justify-content:center}
.nav-item{position:relative}
.nav-item>a{display:block;padding:14px 27px;color:#fff5e3;font-family:var(--font-title);font-size:18px;letter-spacing:3px;
  border-radius:18px 18px 0 0;transition:.2s}
.nav-item:hover>a,.nav-item.active>a{background:var(--card);color:var(--red-deep)}
.dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%);min-width:172px;background:var(--card);
  border:2px solid var(--red);border-top:0;border-radius:0 0 16px 16px;display:none;list-style:none;overflow:hidden;
  box-shadow:0 12px 26px rgba(120,40,20,.25)}
.nav-item:hover .dropdown{display:block}
.dropdown a{display:block;padding:11px 20px;font-size:15px;color:var(--ink);text-align:center;border-bottom:1px dashed var(--line)}
.dropdown li:last-child a{border-bottom:0}
.dropdown a:hover{background:var(--loess-2);color:var(--red-deep);font-weight:700}

/* 轮播 */
.banner{position:relative;height:440px;overflow:hidden}
.banner-track{height:100%}
.banner-slide{position:absolute;inset:0;display:flex;align-items:center;opacity:0;transition:opacity .9s;
  background:linear-gradient(120deg,rgba(120,30,20,.78),rgba(180,90,30,.35)),
  radial-gradient(circle at 85% 20%,rgba(255,220,150,.35),transparent 45%),linear-gradient(135deg,#b54a2e,#7a2c18)}
.banner-slide.s-b{background:linear-gradient(120deg,rgba(140,80,30,.82),rgba(190,130,50,.4)),
  radial-gradient(circle at 85% 20%,rgba(255,230,160,.35),transparent 45%),linear-gradient(135deg,#c98f3e,#8a5a2b)}
.banner-slide.s-c{background:linear-gradient(120deg,rgba(150,40,30,.85),rgba(200,90,60,.4)),
  radial-gradient(circle at 85% 20%,rgba(255,225,160,.35),transparent 45%),linear-gradient(135deg,#d4573a,#a82c20)}
.banner-slide.active{opacity:1}
.slide-inner{width:1200px;max-width:94%;margin:0 auto;color:#fff8ea}
.slide-tag{display:inline-block;background:var(--yellow);color:#6b3a12;padding:4px 18px;font-family:var(--font-title);
  letter-spacing:4px;font-size:14px;font-weight:700;margin-bottom:20px;border-radius:999px}
.slide-title{font-family:var(--font-title);font-size:54px;letter-spacing:9px;font-weight:700;text-shadow:0 4px 14px rgba(90,20,10,.5)}
.slide-desc{margin-top:18px;max-width:640px;font-size:17px;line-height:2;color:#ffeeda}
.slide-btn{display:inline-block;margin-top:28px;background:#fff8ea;color:var(--red-deep);padding:12px 36px;
  font-family:var(--font-title);font-size:17px;letter-spacing:3px;font-weight:700;border-radius:999px}
.slide-btn:hover{background:var(--yellow)}
.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;
  background:rgba(255,248,234,.2);color:#fff8ea;display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;z-index:5;border:2px solid rgba(255,255,255,.5)}
.banner-arrow:hover{background:var(--yellow);border-color:var(--yellow);color:#6b3a12}
.banner-arrow.prev{left:24px}.banner-arrow.next{right:24px}
.banner-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.banner-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer}
.banner-dots span.active{background:var(--yellow);transform:scale(1.25)}

/* 区块 */
.section{padding:54px 0}
.section.alt{background:var(--loess-2)}
.section-head{text-align:center;margin-bottom:36px}
.section-title{font-family:var(--font-title);font-size:32px;letter-spacing:5px;font-weight:700;color:var(--red-deep);display:inline-block;position:relative;padding:0 40px}
.section-title::before,.section-title::after{content:"❖";color:var(--yellow);font-size:20px;position:absolute;top:50%;transform:translateY(-50%)}
.section-title::before{left:0}.section-title::after{right:0}
.section-en{display:block;color:var(--ink-soft);font-size:12px;letter-spacing:4px;margin-top:6px;text-transform:uppercase}
.section-more{float:right;font-size:15px;color:var(--red);font-weight:700}
.section-more:hover{color:var(--red-deep)}

/* 两大板块 —— 窑洞拱窗 */
.twin-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:-50px;position:relative;z-index:10}
.twin-card{background:var(--card);padding:44px 36px 34px;position:relative;text-align:center;
  border:3px solid var(--red);border-radius:200px 200px 14px 14px;box-shadow:0 14px 30px rgba(120,50,20,.18)}
.twin-card.heritage{border-color:var(--clay);background:#fdf1e2}
.twin-icon{width:80px;height:80px;border-radius:50%;background:var(--red);color:#fff8ea;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
  box-shadow:0 0 0 4px var(--loess),0 0 0 6px var(--yellow)}
.twin-card.heritage .twin-icon{background:var(--clay)}
.twin-icon svg{width:44px;height:44px}
.twin-title{font-family:var(--font-title);font-size:28px;letter-spacing:5px;font-weight:700;color:var(--red-deep)}
.twin-en{font-size:12px;letter-spacing:3px;color:var(--ink-soft);margin:4px 0 14px}
.twin-desc{font-size:15px;color:var(--ink-soft);line-height:2}
.twin-links{display:flex;gap:12px;justify-content:center;margin-top:22px;flex-wrap:wrap}
.twin-links a{background:var(--red);color:#fff8ea;padding:9px 22px;font-size:14.5px;letter-spacing:2px;border-radius:999px;font-family:var(--font-title)}
.twin-card.heritage .twin-links a{background:var(--clay)}
.twin-links a:hover{background:var(--yellow);color:#6b3a12}

/* 新闻 */
.news-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:28px}
.news-panel{background:var(--card);border:2px solid var(--line);border-radius:14px;padding:26px 28px;position:relative}
.news-panel::before{content:"";position:absolute;top:8px;left:8px;right:8px;bottom:8px;border:1px dashed var(--yellow);border-radius:10px;pointer-events:none}
.news-panel h3{font-family:var(--font-title);font-size:22px;letter-spacing:3px;margin-bottom:16px;color:var(--red-deep);
  display:flex;align-items:center;gap:10px}
.news-panel h3::before{content:"";width:12px;height:12px;background:var(--red);transform:rotate(45deg)}
.news-list{list-style:none;position:relative}
.news-item{display:flex;align-items:baseline;gap:14px;padding:11px 0;border-bottom:1px dashed var(--line)}
.news-item:last-child{border-bottom:0}
.news-date{color:var(--red);font-family:var(--font-title);font-size:15px;flex:none;font-weight:700}
.news-title{font-size:15.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-title:hover{color:var(--red);font-weight:700}

/* 非遗名录 —— 窗花卡片 */
.heritage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.h-card{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:28px 20px 24px;text-align:center;transition:.3s;position:relative}
.h-card:hover{transform:translateY(-6px) rotate(-.5deg);border-color:var(--red);box-shadow:0 16px 30px rgba(160,50,30,.2)}
.h-icon{width:72px;height:72px;margin:0 auto 14px;color:var(--red);border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle,#fff 55%,var(--loess-2) 58%,#fff 62%);position:relative}
.h-icon::after{content:"";position:absolute;inset:-7px;border:1.5px dashed var(--yellow);border-radius:50%}
.h-icon svg{width:38px;height:38px}
.h-name{font-family:var(--font-title);font-size:22px;letter-spacing:3px;font-weight:700;color:var(--red-deep)}
.h-meta{margin:9px 0 10px}
.h-level{display:inline-block;background:var(--red);color:#fff8ea;font-size:12px;padding:3px 12px;border-radius:999px;letter-spacing:2px}
.h-cat{display:inline-block;background:var(--loess-2);font-size:12px;padding:3px 12px;border-radius:999px;margin-left:6px;color:var(--clay-deep)}
.h-desc{font-size:13.5px;color:var(--ink-soft);line-height:1.9;text-align:left}

/* 课程 */
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.c-card{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:24px 26px;position:relative;transition:.3s}
.c-card:hover{border-color:var(--red);transform:translateY(-4px)}
.c-tag{position:absolute;top:16px;right:16px;background:var(--red);color:#fff8ea;font-size:12px;padding:3px 14px;border-radius:999px;letter-spacing:2px}
.c-tag.full{background:#b3a284}
.c-name{font-family:var(--font-title);font-size:21px;letter-spacing:2px;font-weight:700;color:var(--red-deep);margin-bottom:10px}
.c-line{font-size:14px;color:var(--ink-soft);padding:3px 0}
.c-line b{color:var(--ink);font-weight:normal}
.c-sign{display:inline-block;margin-top:12px;background:var(--clay);color:#fff8ea;padding:8px 26px;font-size:14.5px;letter-spacing:2px;border-radius:999px;font-family:var(--font-title)}
.c-sign:hover{background:var(--red)}
.c-sign.disabled{background:#c9bb9e;pointer-events:none}

/* 活动 */
.act-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.a-card{background:var(--card);border:2px solid var(--line);border-radius:16px 16px 16px 16px;padding:26px 22px;position:relative;transition:.3s}
.a-card:hover{border-color:var(--yellow);transform:translateY(-4px)}
.a-icon{width:56px;height:56px;color:var(--red);margin-bottom:12px}
.a-icon svg{width:100%;height:100%}
.a-name{font-family:var(--font-title);font-size:18.5px;letter-spacing:2px;font-weight:700;line-height:1.6;min-height:60px;color:var(--red-deep)}
.a-line{font-size:13.5px;color:var(--ink-soft);margin-top:6px}
.a-status{display:inline-block;margin-top:12px;font-size:13.5px;color:var(--red);font-weight:700;background:#fbe4cf;padding:3px 14px;border-radius:999px}

/* 文化吴起 */
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cul-card{border:2px solid var(--line);border-radius:16px;overflow:hidden;background:var(--card)}
.cul-top{padding:28px 26px 18px;color:#fff8ea;position:relative;text-align:center}
.cul-card:nth-child(1) .cul-top{background:linear-gradient(135deg,#cf3b2c,#96261b)}
.cul-card:nth-child(2) .cul-top{background:linear-gradient(135deg,#b57a2e,#7a4e18)}
.cul-card:nth-child(3) .cul-top{background:linear-gradient(135deg,#c07a3e,#8a4f22)}
.cul-title{font-family:var(--font-title);font-size:25px;letter-spacing:5px;font-weight:700}
.cul-en{font-size:12px;letter-spacing:3px;opacity:.8;margin-top:4px}
.cul-body{padding:22px 26px 28px;font-size:14.5px;line-height:2.1;color:var(--ink-soft)}

/* 子页横幅 */
.page-hero{padding:60px 0 70px;text-align:center;color:#fff8ea;position:relative;
  background:linear-gradient(120deg,rgba(120,30,20,.85),rgba(180,100,40,.55)),
  radial-gradient(circle at 50% 120%,rgba(255,220,150,.4),transparent 60%),linear-gradient(135deg,#b54a2e,#7a2c18)}
.page-hero h1{font-family:var(--font-title);font-size:40px;letter-spacing:9px;font-weight:700;text-shadow:0 3px 12px rgba(90,20,10,.5)}
.page-hero p{margin-top:12px;color:#ffeeda;letter-spacing:2px}
.breadcrumb{font-size:14px;color:var(--ink-soft);padding:16px 0}
.breadcrumb a:hover{color:var(--red)}

/* 主+侧栏 */
.layout{display:grid;grid-template-columns:1fr 300px;gap:30px;padding:10px 0 50px}
.side-box{background:var(--card);border:2px solid var(--line);border-radius:14px;margin-bottom:24px;overflow:hidden}
.side-box h3{background:var(--red);color:#fff8ea;font-family:var(--font-title);font-size:19px;letter-spacing:4px;padding:15px 20px;text-align:center}
.side-box ul{list-style:none;padding:8px 0}
.side-box li a{display:block;padding:11px 22px;font-size:15px;border-bottom:1px dashed var(--line);position:relative}
.side-box li a::before{content:"◆";color:var(--yellow);font-size:10px;margin-right:8px}
.side-box li a:hover{color:var(--red);font-weight:700;background:#fdf1e2}
.side-contact{padding:18px 22px;font-size:14.5px;line-height:2.2;color:var(--ink-soft)}
.content-card{background:var(--card);border:2px solid var(--line);border-radius:14px;padding:34px 38px}
.content-card h2{font-family:var(--font-title);font-size:24px;letter-spacing:3px;margin:26px 0 12px;color:var(--red-deep);
  display:flex;align-items:center;gap:10px}
.content-card h2::before{content:"";width:14px;height:14px;background:var(--red);transform:rotate(45deg);flex:none}
.content-card h2:first-child{margin-top:0}
.content-card p{font-size:15.5px;line-height:2.1;margin-bottom:12px;color:#5c452c}

/* 场馆 */
.venue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.v-card{background:var(--card);border:2px solid var(--line);border-radius:14px 14px 60px 60px;padding:26px 24px;transition:.3s;text-align:center}
.v-card:hover{border-color:var(--red);transform:translateY(-5px)}
.v-name{font-family:var(--font-title);font-size:20px;letter-spacing:2px;font-weight:700;color:var(--red-deep)}
.v-area{color:var(--clay);font-size:13px;margin:8px 0 10px;letter-spacing:2px;font-weight:700}
.v-desc{font-size:14px;color:var(--ink-soft);line-height:1.9;text-align:left}

/* 传承人 */
.inh-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.inh-card{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:26px;display:flex;gap:18px;align-items:center;transition:.3s}
.inh-card:hover{border-color:var(--red);transform:translateY(-4px)}
.inh-avatar{width:80px;height:80px;border-radius:50%;background:var(--loess-2);border:3px solid var(--red);flex:none;
  display:flex;align-items:center;justify-content:center;color:var(--red)}
.inh-avatar svg{width:42px;height:42px}
.inh-name{font-family:var(--font-title);font-size:22px;letter-spacing:2px;font-weight:700;color:var(--red-deep)}
.inh-title{color:var(--red);font-size:13.5px;margin:3px 0;font-weight:700}
.inh-proj{font-size:14px;color:var(--ink-soft)}

/* 数字展厅 */
.hall-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.hl-card{position:relative;overflow:hidden;border-radius:16px;min-height:200px;display:flex;flex-direction:column;justify-content:flex-end;
  background:linear-gradient(165deg,#9c4a28,#5c2613);color:#fff8ea;padding:24px;border:2px solid rgba(255,240,210,.25)}
.hl-card::before{content:"";position:absolute;inset:10px;border:1px dashed rgba(255,230,180,.4);border-radius:12px}
.hl-card .hl-icon{position:absolute;top:22px;right:22px;width:48px;height:48px;color:var(--yellow)}
.hl-card .hl-icon svg{width:100%;height:100%}
.hl-name{font-family:var(--font-title);font-size:19px;letter-spacing:2px;font-weight:700;position:relative}
.hl-count{font-size:13px;color:#ffd9a0;margin-top:4px;position:relative}

/* 分页 */
.pagination{display:flex;justify-content:center;gap:8px;margin:36px 0 10px}
.pagination a,.pagination span{border:2px solid var(--line);background:var(--card);padding:8px 16px;font-size:14px;border-radius:999px}
.pagination .current{background:var(--red);color:#fff8ea;border-color:var(--red)}

/* 文章详情 */
.article-head{text-align:center;padding-bottom:22px;border-bottom:2px dashed var(--line);margin-bottom:24px}
.article-head h1{font-family:var(--font-title);font-size:27px;letter-spacing:3px;line-height:1.7;color:var(--red-deep)}
.article-meta{color:var(--ink-soft);font-size:14px;margin-top:14px}
.article-body p{font-size:16px;line-height:2.2;text-indent:2em;margin-bottom:14px;color:#5c452c}

/* 页脚 —— 黄土坡波浪 */
.footer{background:var(--clay-deep);color:#f0dcc0;margin-top:20px;padding:52px 0 0;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:26px;
  background:radial-gradient(circle at 12.5% 26px,transparent 24px,var(--clay-deep) 25px) 0 0/80px 26px repeat-x}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;padding-bottom:34px;position:relative}
.footer h4{font-family:var(--font-title);color:#ffe9c4;font-size:18px;letter-spacing:3px;margin-bottom:16px}
.footer p,.footer a{font-size:14px;line-height:2.3;color:#e6d2b2}
.footer a:hover{color:#fff}
.footer ul{list-style:none}
.footer .seal{width:56px;height:56px;background:var(--red);color:#fff8ea;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-title);font-size:30px;border-radius:50%;margin-bottom:12px;box-shadow:0 0 0 3px var(--yellow)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding:16px 0;text-align:center;font-size:13px;color:#c9ad86}

@media (max-width:960px){
  .twin-grid,.news-grid,.culture-grid{grid-template-columns:1fr}
  .heritage-grid,.hall-grid,.act-grid{grid-template-columns:repeat(2,1fr)}
  .course-grid,.venue-grid,.inh-grid{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr}
  .nav-list{flex-wrap:wrap}
  .slide-title{font-size:34px;letter-spacing:5px}
  .header-inner{flex-direction:column;gap:16px}
  .twin-card{border-radius:90px 90px 14px 14px}
}
/* ===== ???????????????????? ===== */
.twin-grid>*,.news-grid>*,.heritage-grid>*,.course-grid>*,.act-grid>*,.culture-grid>*,.venue-grid>*,.inh-grid>*,.hall-grid>*,.layout>*,.footer-grid>*{min-width:0}
.news-list{margin:0;padding:0;list-style:none}
.side-box ul{margin:0;padding:8px 0;list-style:none}
@media (max-width:960px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .news-panel{padding:20px 22px}
  .content-card{padding:24px 20px}
  .brand-name{font-size:25px;letter-spacing:2px}
  .header-search input{width:170px}
  .nav-item>a{padding:12px 16px;font-size:16px}
  .section{padding:38px 0}
  .twin-grid{margin-top:-30px}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .heritage-grid,.hall-grid,.act-grid{grid-template-columns:1fr}
  .slide-title{font-size:29px!important;letter-spacing:3px!important}
  .page-hero h1{font-size:28px;letter-spacing:4px}
}