/* ============================================
   惠州市儿童关爱慈善会 官方网站
   全站公共样式 style.css
   ============================================ */
:root{
  --red:#c8102e;
  --red-dark:#a30e26;
  --navy:#16324f;
  --blue:#1f6fb2;
  --gold:#d9a441;
  --bg:#f4f6f9;
  --line:#e6e9ef;
  --text:#333;
  --muted:#6b7686;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}
a:hover{color:var(--red)}
ul,ol{list-style:none}
img{max-width:100%;vertical-align:middle}
.container{width:1200px;margin:0 auto}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy);color:#c9d6e4;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:7px 0}
.topbar a{color:#c9d6e4}
.topbar a:hover{color:#fff}
.topbar .tb-right a{margin-left:18px}
.topbar .divider{color:#465a70;margin-left:18px}

/* ---------- 主头部 ---------- */
.header-main{background:#fff;border-bottom:1px solid var(--line)}
.header-main .container{display:flex;justify-content:space-between;align-items:center;padding:18px 0}
.logo{display:flex;align-items:center;gap:14px}
.logo img{width:54px;height:54px}
.logo .l-name{font-size:24px;font-weight:700;color:var(--navy);line-height:1.35}
.logo .l-name b{color:var(--red)}
.logo .l-sub{display:block;font-size:12px;color:#8a94a3;letter-spacing:1px;font-weight:400}
.header-tel{text-align:right;font-size:13px;color:var(--muted)}
.header-tel b{display:block;font-size:20px;color:var(--red);font-weight:700}

/* ---------- 导航 ---------- */
.nav{background:var(--red);position:sticky;top:0;z-index:99;box-shadow:0 2px 8px rgba(0,0,0,.14)}
.nav .container{display:flex;align-items:stretch}
.nav ul{display:flex}
.nav li a{display:block;padding:13px 26px;color:#fff;font-size:16px}
.nav li a:hover,.nav li a.active{background:var(--red-dark)}
.nav .nav-right{margin-left:auto;color:#ffd9de;font-size:13px;align-self:center;padding-right:4px}

/* ---------- 首页横幅 ---------- */
.banner{background:linear-gradient(120deg,#8d0f22 0%,var(--red) 55%,#b31217 100%);color:#fff;position:relative;overflow:hidden}
.banner::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.06)}
.banner::after{content:"";position:absolute;left:-80px;bottom:-170px;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.05)}
.banner-inner{padding:74px 0 68px;position:relative;z-index:1}
.banner h2{font-size:38px;letter-spacing:2px;font-weight:700;line-height:1.4;margin-bottom:14px}
.banner p{font-size:17px;color:#ffe9ec;max-width:760px;margin-bottom:28px}
.banner .btn-row{display:flex;gap:14px}

/* ---------- 按钮 ---------- */
.btn{display:inline-block;padding:10px 30px;border-radius:30px;font-size:15px;transition:all .2s}
.btn-red{background:#fff;color:var(--red);font-weight:600}
.btn-red:hover{background:#ffe3e7;color:var(--red-dark)}
.btn-line{background:transparent;border:1px solid rgba(255,255,255,.75);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.16);color:#fff}

/* ---------- 通用板块 ---------- */
.section{padding:52px 0}
.section .sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:26px}
.sec-title{font-size:24px;color:var(--navy);padding-left:14px;position:relative;font-weight:700;line-height:1.4}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;background:var(--red);border-radius:3px}
.sec-title small{display:block;font-size:13px;color:var(--muted);font-weight:400;margin-top:2px}
.sec-more{font-size:14px;color:var(--red);border:1px solid var(--red);padding:5px 18px;border-radius:20px}
.sec-more:hover{background:var(--red);color:#fff}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:30px;align-items:start}
.about-text p{margin-bottom:12px;text-indent:2em;color:#4a5568;text-align:justify}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px 14px;text-align:center}
.stat b{font-size:28px;color:var(--red)}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- 新闻列表 ---------- */
.news-box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:6px 24px}
.news-item{display:flex;align-items:center;gap:18px;padding:16px 0;border-bottom:1px dashed var(--line)}
.news-item:last-child{border-bottom:none}
.news-date{flex:0 0 86px;text-align:center;background:#f2f5f9;border-radius:8px;padding:8px 0;color:var(--navy)}
.news-date b{display:block;font-size:22px;color:var(--red);line-height:1.25}
.news-date span{font-size:12px;color:var(--muted)}
.news-item .ni-main{flex:1;min-width:0}
.news-item h3{font-size:17px;font-weight:600;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-item h3 a:hover{color:var(--red)}
.news-item p{font-size:14px;color:var(--muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .ni-tag{flex:0 0 auto;color:var(--blue);border:1px solid var(--blue);font-size:12px;padding:2px 10px;border-radius:14px;white-space:nowrap}

/* ---------- 版本卡片 ---------- */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border-radius:12px;box-shadow:0 3px 12px rgba(23,50,79,.08);padding:26px 24px 24px;border-top:4px solid var(--red);position:relative;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 22px rgba(23,50,79,.14)}
.card.c2{border-top-color:#e08c0c}
.card.c3{border-top-color:#1e7f5e}
.card.c4{border-top-color:#2a6fc9}
.card.c5{border-top-color:#7b4fc0}
.card.c6{border-top-color:#c26a1e}
.card .ci{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:600;color:#fff;background:var(--red);margin-bottom:14px}
.card.c2 .ci{background:#e08c0c}
.card.c3 .ci{background:#1e7f5e}
.card.c4 .ci{background:#2a6fc9}
.card.c5 .ci{background:#7b4fc0}
.card.c6 .ci{background:#c26a1e}
.card h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.card-desc{font-size:14px;color:var(--muted);min-height:78px;text-align:justify}
.card .card-btns{margin-top:16px;display:flex;gap:10px}
.btn-down{display:inline-block;padding:7px 22px;border-radius:20px;background:var(--red);color:#fff;font-size:14px}
.btn-down:hover{background:var(--red-dark);color:#fff}
.btn-join{display:inline-block;padding:7px 22px;border-radius:20px;border:1px solid var(--blue);color:var(--blue);font-size:14px}
.btn-join:hover{background:var(--blue);color:#fff}

/* ---------- 善款公示横幅 ---------- */
.donate-band{background:linear-gradient(120deg,var(--navy),#224a78);color:#fff;text-align:center;padding:46px 0}
.donate-band h3{font-size:26px;margin-bottom:10px}
.donate-band p{color:#c9d6e4;margin-bottom:22px}

/* ---------- 志愿者横幅 ---------- */
.volunteer-band{background:linear-gradient(120deg,#1b3a55,#1e5c77);color:#fff;padding:46px 0}
.volunteer-band .container{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.volunteer-band h3{font-size:24px;margin-bottom:8px}
.volunteer-band p{color:#d5e4f0}
.volunteer-band .btn-row{display:flex;gap:12px}

/* ---------- 联系方式 ---------- */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:30px}
.contact-info{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 30px}
.contact-info li{padding:13px 0;border-bottom:1px dashed var(--line);font-size:15px}
.contact-info li:last-child{border-bottom:none}
.contact-info li b{color:var(--navy);display:inline-block;min-width:84px}
.contact-note{background:var(--navy);border-radius:10px;color:#c9d6e4;padding:26px 30px;font-size:14px;line-height:1.9}
.contact-note h4{color:#fff;font-size:17px;margin-bottom:10px}

/* ---------- 内页横幅 ---------- */
.page-banner{background:linear-gradient(120deg,#8d0f22,var(--red) 60%,#b31217);color:#fff;padding:42px 0}
.page-banner h2{font-size:30px;letter-spacing:1px}
.page-banner .crumb{margin-top:8px;font-size:13px;color:#ffd9de}
.page-banner .crumb a:hover{color:#fff}

/* ---------- 文章页 ---------- */
.article-box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:36px 46px;margin-bottom:20px}
.article-box h1{font-size:26px;color:var(--navy);line-height:1.45;text-align:center}
.article-meta{text-align:center;color:var(--muted);font-size:13px;margin:14px 0 22px;padding-bottom:16px;border-bottom:1px dashed var(--line)}
.article-meta span{margin:0 12px}
.article-body p{text-indent:2em;margin-bottom:14px;color:#3f4a58;text-align:justify}
.article-body h2{font-size:20px;color:var(--navy);margin:22px 0 10px;padding-left:12px;border-left:4px solid var(--red)}
.article-body blockquote{border-left:4px solid var(--gold);background:#fbf7ec;padding:12px 18px;margin:14px 0;color:#7a6a3f;font-size:14px}
.prev-next{display:flex;justify-content:space-between;gap:20px;font-size:14px;color:var(--muted);margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.prev-next a{color:var(--navy)}
.prev-next a:hover{color:var(--red)}
.rel-list{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 26px;margin-bottom:20px}
.rel-list h4{color:var(--navy);font-size:16px;margin-bottom:8px;padding-left:10px;border-left:4px solid var(--red)}
.rel-list li{padding:8px 0;border-bottom:1px dashed var(--line);font-size:14px}
.rel-list li:last-child{border-bottom:none}
.rel-list li a:hover{color:var(--red)}

/* ---------- 分页 ---------- */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:30px}
.pagination a,.pagination span{display:inline-block;min-width:38px;padding:7px 12px;border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:6px;text-align:center;font-size:14px}
.pagination a:hover{border-color:var(--red);color:var(--red)}
.pagination .on{background:var(--red);border-color:var(--red);color:#fff}

/* ---------- 页脚 ---------- */
.footer{background:#12283e;color:#b7c2d0}
.footer .container{padding:42px 0 0}
.foot-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:28px}
.foot-cols h4{color:#fff;font-size:16px;margin-bottom:14px;padding-left:10px;position:relative}
.foot-cols h4::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;background:var(--red)}
.foot-cols li{margin-bottom:8px;font-size:14px}
.foot-cols li a:hover{color:#fff}
.foot-cols p{font-size:14px;line-height:1.9}
.foot-links{border-top:1px solid #243c55;padding:16px 0;font-size:13px;color:#8fa0b3}
.foot-links a{color:#8fa0b3;margin-right:8px}
.foot-links a:hover{color:#fff}
.copyright{border-top:1px solid #243c55;text-align:center;padding:16px 0;font-size:13px;color:#8fa0b3}
.copyright a{color:#c9d6e4}

/* ---------- 响应式 ---------- */
@media(max-width:980px){
  .container{width:auto;margin:0 16px}
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid,.foot-cols,.contact-grid{grid-template-columns:1fr}
  .topbar .tb-right{display:none}
  .header-tel{display:none}
  .nav ul{flex-wrap:wrap}
  .banner-inner{padding:44px 0}
  .banner h2{font-size:30px}
}
@media(max-width:640px){
  .cards-grid{grid-template-columns:1fr}
  .logo .l-name{font-size:18px}
  .news-item{flex-wrap:wrap}
  .article-box{padding:22px 18px}
  .nav li a{padding:12px 14px;font-size:15px}
}