/* ============================================================
   文興粵語事業部 · 秦漢風改版  统一样式（三页共享）
   ============================================================ */
:root{
  --ink:#171209; --ink-deep:#0d0a06; --ink2:#221a0e;
  --han:#a63a2b; --han-bright:#c04a38; --han-deep:#7c2a20;
  --gold:#c9a24c; --gold-bright:#e2c476; --gold-dim:#96783a;
  --paper:#eadfc1; --paper-dim:#cbbb97; --paper-mute:#8f8264;
  --bronze:#7c8b6f; --line:#5a4a2e; --line-soft:rgba(201,162,76,.28);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink-deep); color:var(--paper); line-height:1.8;
  font-size:16px; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,select,input,textarea{font-family:inherit}

/* 装饰底纹 */
.deco-scan{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background:
   radial-gradient(1200px 600px at 50% -10%, rgba(166,58,43,.10), transparent 60%),
   radial-gradient(900px 500px at 100% 110%, rgba(201,162,76,.07), transparent 55%),
   repeating-linear-gradient(0deg, rgba(201,162,76,.022) 0 1px, transparent 1px 26px),
   repeating-linear-gradient(90deg, rgba(201,162,76,.022) 0 1px, transparent 1px 26px);
}
.shell{position:relative;z-index:1;max-width:1600px;margin:0 auto;padding:0 24px}

/* 回纹图案 */
.meander{width:100%;height:10px;opacity:.9;
  background-image:url("data:image/svg+xml,%3Csvg width='44' height='44' viewBox='0 0 44 44' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 4 H40 V40 H16 V26 H32 V14 H16 Z' fill='none' stroke='%23c9a24c' stroke-width='2.4'/%3E%3C/svg%3E");
  background-repeat:repeat-x; background-size:44px 10px; opacity:.55;
}
.meander.v{width:10px;height:100%;background-size:10px 44px;background-repeat:repeat-y}

/* ===== 顶栏 ===== */
.masthead{border-bottom:1px solid var(--line-soft);position:sticky;top:0;z-index:50;
  background:rgba(13,10,6,.9);backdrop-filter:blur(8px)}
.mast-inner{display:flex;align-items:center;gap:22px;padding:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:14px}
.brand-seal{width:52px;height:52px;flex:0 0 auto;position:relative;display:flex;align-items:center;justify-content:center;}
.brand-seal span{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:24px;color:var(--gold-bright);line-height:1}
.brand-name{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:32px;color:var(--paper);letter-spacing:2px;line-height:1.1}
.brand-en{font-size:11px;letter-spacing:3px;color:var(--paper-mute);margin-top:2px;text-transform:uppercase}
.nav{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav a{
  font-size:14.5px;padding:7px 13px;color:var(--paper-dim);
  border:1px solid transparent;border-radius:4px;transition:.2s;letter-spacing:1px}
.nav a:hover{color:var(--gold-bright);border-color:var(--gold-dim);
  background:linear-gradient(180deg, rgba(166,58,43,.15), transparent)}
.nav a.sel{color:var(--gold-bright);border-color:var(--line-soft)}
.nav-toggle{display:none}

/* ===== Hero（首页） ===== */
.hero{position:relative;padding:64px 0 46px;border-bottom:1px solid var(--line-soft);
  background:
   radial-gradient(700px 380px at 18% 8%, rgba(166,58,43,.18), transparent 60%),
   radial-gradient(760px 420px at 85% 92%, rgba(201,162,76,.10), transparent 58%)}
.hero-frame{position:relative;padding:34px 30px;border:1px solid var(--gold-dim);
  background:linear-gradient(180deg, rgba(34,26,14,.7), rgba(13,10,6,.4))}
.hero-frame::before,.hero-frame::after{content:"";position:absolute;width:44px;height:44px;border:2px solid var(--gold);opacity:.85}
.hero-frame::before{top:6px;left:6px;border-right:none;border-bottom:none}
.hero-frame::after{bottom:6px;right:6px;border-left:none;border-top:none}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
.hero-seal{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--gold-bright);letter-spacing:2px;margin-bottom:18px}
.hero-seal i{width:26px;height:26px;border:1.5px solid var(--han-bright);background:var(--han);color:var(--paper);
  display:flex;align-items:center;justify-content:center;font-style:normal;font-size:12px;border-radius:4px;font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif}
.hero h1{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-weight:400;font-size:48px;line-height:1.14;color:var(--paper);
  letter-spacing:4px;text-shadow:0 3px 22px rgba(166,58,43,.35)}
.hero h1 em{font-style:normal;color:var(--han-bright)}
.hero-slogan{margin:16px 0 8px;font-size:22px;color:var(--gold-bright);letter-spacing:3px}
.hero-sub{font-size:15px;color:var(--paper-dim);letter-spacing:1px;margin-bottom:22px}
.hero-copy{font-size:15px;color:var(--paper-dim);line-height:2;max-width:52ch}
.cta-row{display:flex;gap:16px;margin-top:26px;flex-wrap:wrap}
.cta{display:inline-flex;align-items:center;gap:9px;padding:11px 22px;font-size:15px;letter-spacing:2px;
  background:linear-gradient(180deg,var(--han-bright),var(--han-deep));color:var(--paper);
  border:1px solid var(--gold-dim);border-radius:4px;cursor:pointer;transition:.2s}
.cta:hover{filter:brightness(1.1);box-shadow:0 0 18px rgba(192,74,56,.35)}
.cta.ghost{background:transparent;color:var(--gold-bright);border-color:var(--gold-dim)}
.cta.ghost:hover{background:rgba(201,162,76,.12)}
.hero-poster{position:relative;border:2px solid var(--gold-dim);padding:8px;
  background:linear-gradient(180deg,var(--ink2),var(--ink-deep))}
.hero-poster::after{content:"";position:absolute;inset:-14px;border:1px solid var(--line-soft);pointer-events:none}
.hero-poster img{width:100%;border-radius:2px;filter:sepia(.15) saturate(.9)}
.hero-poster-caption{margin-top:8px;text-align:center;font-size:12.5px;color:var(--paper-mute);letter-spacing:1px}
.motto-strip{display:flex;justify-content:center;gap:0;margin:34px auto 0;max-width:820px}
.motto-strip span{flex:1;text-align:center;padding:12px 6px;font-size:15px;letter-spacing:3px;color:var(--paper-dim);
  border-left:1px solid var(--line-soft)}
.motto-strip span:first-child{border-left:none}
.motto-strip b{display:block;font-weight:600;color:var(--gold-bright);font-size:16px;margin-bottom:2px}

/* ===== 节 ===== */
section.block{padding:60px 0;border-bottom:1px solid var(--line-soft)}
.sec-head{display:flex;align-items:baseline;gap:16px;margin-bottom:30px;flex-wrap:wrap}
.sec-head .zh{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:34px;color:var(--paper);letter-spacing:3px}
.sec-head .zh em{font-style:normal;color:var(--han-bright)}
.sec-head .en{font-size:12px;color:var(--paper-mute);letter-spacing:4px;text-transform:uppercase}
.sec-head .bar{flex:1;height:1px;background:linear-gradient(90deg,var(--gold-dim),transparent)}

/* 关于 - 竹简 / 碑刻 */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.stele{position:relative;background:linear-gradient(180deg,#241b0e,#171209);
  border:1px solid var(--gold-dim);padding:34px 30px;border-radius:3px}
.stele::before{content:"◆";position:absolute;top:-11px;left:50%;transform:translateX(-50%);
  color:var(--gold);font-size:18px;background:var(--ink-deep);padding:0 8px}
.stele .stele-tag{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:22px;color:var(--gold-bright);letter-spacing:2px}
.stele .stele-en{font-size:12px;color:var(--paper-mute);letter-spacing:2px;margin:6px 0 18px}
.stele p{font-size:15px;color:var(--paper-dim);text-align:justify;margin-bottom:14px}
.stele .seal{display:inline-flex;align-items:center;gap:8px;margin-top:6px;color:var(--paper);font-size:13.5px;letter-spacing:1px;
  border:1px solid var(--han-bright);background:var(--han);padding:5px 12px;border-radius:3px}
.about-aside .fact{display:flex;gap:18px;align-items:flex-start;padding:18px 4px;border-bottom:1px dashed var(--line-soft)}
.about-aside .fact:last-child{border-bottom:none}
.about-aside .fact i{font-style:normal;width:38px;height:38px;flex:0 0 auto;border:1.5px solid var(--gold);
  display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--gold-bright);
  font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;border-radius:50%}
.about-aside .fact b{display:block;font-size:16px;color:var(--paper);margin-bottom:2px;letter-spacing:1px}
.about-aside .fact span{font-size:13.5px;color:var(--paper-dim)}

/* 资源卡片 - 青铜令牌 */
.res-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.res-card{position:relative;background:linear-gradient(180deg,#241b0e,#151008);
  border:1px solid var(--gold-dim);padding:26px 22px 22px;border-radius:3px;transition:.25s;
  display:flex;flex-direction:column}
.res-card:hover{transform:translateY(-5px);border-color:var(--gold);box-shadow:0 10px 26px rgba(0,0,0,.5)}
.res-card::after{content:"";position:absolute;top:0;left:14px;right:14px;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold-dim),transparent)}
.res-tag{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:18px;color:var(--gold-bright);letter-spacing:1px;margin-bottom:4px}
.res-sub{font-size:13px;color:var(--paper-mute);margin-bottom:16px;min-height:40px}
.res-card .cta{margin-top:auto;padding:8px 16px;font-size:13.5px}
.res-card .cta.ghost{padding:8px 16px;font-size:13.5px}
.ai-links{display:flex;gap:8px;margin-top:auto;flex-wrap:wrap}
.ai-links .cta.ghost{padding:7px 14px;font-size:13px}
.ai-more{width:100%;margin-top:8px;text-align:center;font-size:12.5px;color:var(--paper-mute)}

/* 理论动态 - 石碑时间线 */
.theory-note{font-size:14px;color:var(--paper-mute);letter-spacing:1px;margin-bottom:26px}
.tl{position:relative;padding-left:34px}
.tl::before{content:"";position:absolute;left:10px;top:4px;bottom:4px;width:2px;
  background:linear-gradient(180deg,var(--han-bright),var(--gold-dim))}
.tl-item{position:relative;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{position:absolute;left:-31px;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--ink);border:2px solid var(--gold);box-shadow:0 0 0 3px var(--ink-deep)}
.tl-item:nth-child(even) .tl-dot{border-color:var(--han-bright)}
.tl-card{display:grid;grid-template-columns:230px 1fr;gap:22px;align-items:stretch;
  background:linear-gradient(180deg,#201708,#14100a);
  border:1px solid var(--gold-dim);border-radius:3px;overflow:hidden}
.tl-card:hover{border-color:var(--gold)}
.tl-img{position:relative;min-height:150px;overflow:hidden;border-right:1px solid var(--line-soft)}
.tl-img img{width:100%;height:100%;object-fit:cover;filter:sepia(.18) saturate(.9)}
.tl-img::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(201,162,76,.25)}
.tl-body{padding:18px 22px 20px;display:flex;flex-direction:column;justify-content:center}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-date{font-size:13px;color:var(--gold-bright);letter-spacing:1px;background:var(--ink2);border:1px solid var(--line-soft);padding:2px 10px;border-radius:20px}
.tl-cat{font-size:12.5px;color:var(--paper-mute);letter-spacing:1px;border:1px solid var(--line-soft);padding:2px 10px;border-radius:20px}
.tl-title{font-size:18px;color:var(--paper);letter-spacing:1px;margin-bottom:8px;transition:.2s;line-height:1.5;display:block}
.tl-title:hover{color:var(--gold-bright)}
.tl-src{font-size:13px;color:var(--paper-mute)}
.tl-more{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:34px;
  font-size:15px;color:var(--gold-bright);letter-spacing:2px}
.tl-more:hover{text-decoration:underline}

/* 加入我们 */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.contact-card{text-align:center;background:linear-gradient(180deg,#241b0e,#151008);
  border:1px solid var(--gold-dim);padding:26px 18px;border-radius:3px}
.contact-card h4{font-size:17px;color:var(--paper);letter-spacing:1px;margin-bottom:14px}
.contact-card .qr{width:150px;height:150px;margin:0 auto 12px;border:1px solid var(--line-soft);padding:6px;background:#fff;border-radius:3px}
.contact-card .qr img{width:100%;height:100%;object-fit:contain}
.contact-card p{font-size:12.5px;color:var(--paper-mute);letter-spacing:1px}
.contact-link{display:inline-block;margin-top:10px;font-size:13px;color:var(--gold-bright)}

/* ===== 页面横幅（列表/详情页） ===== */
.page-hero{padding:56px 0 40px;border-bottom:1px solid var(--line-soft);
  background:
   radial-gradient(700px 320px at 20% 0%, rgba(166,58,43,.16), transparent 60%),
   radial-gradient(700px 320px at 85% 100%, rgba(201,162,76,.10), transparent 55%)}
.crumb{font-size:13px;color:var(--paper-mute);letter-spacing:1px;margin-bottom:18px}
.crumb a:hover{color:var(--gold-bright)}
.crumb i{font-style:normal;margin:0 8px;color:var(--gold-dim)}
.page-title{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:40px;color:var(--paper);letter-spacing:3px;line-height:1.3}
.page-title em{font-style:normal;color:var(--han-bright)}
.page-sub{margin-top:12px;font-size:14.5px;color:var(--paper-dim);letter-spacing:1px}

/* ===== 资讯列表页 ===== */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin:30px 0 28px}
.chip{padding:7px 16px;font-size:13.5px;letter-spacing:1px;color:var(--paper-dim);
  border:1px solid var(--line-soft);border-radius:20px;cursor:pointer;transition:.2s;background:none}
.chip:hover{color:var(--gold-bright);border-color:var(--gold-dim)}
.chip.on{color:var(--paper);background:var(--han);border-color:var(--han-bright)}
.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{position:relative;background:linear-gradient(180deg,#201708,#14100a);
  border:1px solid var(--gold-dim);border-radius:3px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-5px);border-color:var(--gold);box-shadow:0 10px 26px rgba(0,0,0,.5)}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover;filter:sepia(.18) saturate(.9)}
.news-thumb .cat{position:absolute;left:12px;top:12px;z-index:2;font-size:12px;color:var(--paper);
  background:var(--han);border:1px solid var(--gold-dim);padding:2px 12px;border-radius:20px;letter-spacing:1px}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.news-date{font-size:12.5px;color:var(--paper-mute);letter-spacing:1px;margin-bottom:8px}
.news-title{font-size:17px;color:var(--paper);letter-spacing:1px;line-height:1.5;margin-bottom:10px;transition:.2s}
.news-card:hover .news-title{color:var(--gold-bright)}
.news-excerpt{font-size:13.5px;color:var(--paper-dim);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.news-more{margin-top:auto;font-size:13px;color:var(--gold-bright);letter-spacing:1px}
.news-more:hover{text-decoration:underline}
.pager{display:flex;justify-content:center;gap:12px;margin-top:40px;align-items:center}
.pager span{font-size:14px;color:var(--paper-mute);letter-spacing:1px}

/* ===== 资讯内容页 ===== */
.article-wrap{max-width:860px;margin:0 auto;padding:0 0 20px}
.article-head{text-align:center;padding:26px 0 6px}
.article-head .cat-inline{display:inline-flex;font-size:13px;color:var(--paper);
  background:var(--han);border:1px solid var(--gold-dim);padding:3px 16px;border-radius:20px;letter-spacing:2px;margin-bottom:18px}
.article-title{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:34px;color:var(--paper);
  letter-spacing:2px;line-height:1.4;margin-bottom:16px}
.article-meta{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--paper-mute);letter-spacing:1px}
.article-meta b{font-weight:600;color:var(--gold-bright)}
.article-img{margin:26px 0 10px;border:1px solid var(--gold-dim);padding:6px;background:linear-gradient(180deg,#241b0e,#171209)}
.article-img img{width:100%;border-radius:2px;filter:sepia(.15) saturate(.9)}
.article-figcaption{text-align:center;font-size:12px;color:var(--paper-mute);letter-spacing:1px;margin-top:8px}
.article-lead{font-size:17px;color:var(--gold-bright);line-height:1.9;text-align:justify;margin:26px 0 8px;letter-spacing:.5px}
.article-body{font-size:16px;color:var(--paper-dim);text-align:justify;line-height:2.05}
.article-body p{text-indent:2em;margin-bottom:18px}
.article-body h3{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:20px;color:var(--paper);
  letter-spacing:2px;margin:30px 0 12px;text-indent:0}
.article-body blockquote{position:relative;border-left:3px solid var(--han-bright);
  background:linear-gradient(180deg,#241b0e,#171209);padding:18px 22px;margin:22px 0;
  font-size:16px;color:var(--gold-bright);letter-spacing:.5px}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;margin:32px 0;padding-top:22px;border-top:1px dashed var(--line-soft)}
.article-tags span{font-size:12.5px;color:var(--paper-mute);border:1px solid var(--line-soft);padding:3px 14px;border-radius:20px;letter-spacing:1px}
.prev-next{display:flex;justify-content:space-between;gap:18px;margin:26px 0 40px;border-top:1px solid var(--line-soft);padding-top:22px;flex-wrap:wrap}
.prev-next a{flex:1;min-width:0;font-size:13.5px;color:var(--paper-dim);line-height:1.7;letter-spacing:.5px}
.prev-next a b{display:block;font-size:12px;color:var(--paper-mute);margin-bottom:4px;letter-spacing:1px}
.prev-next a:hover{color:var(--gold-bright)}
.prev-next a.next{text-align:right}
.back-cta{text-align:center;margin:10px 0 30px}
.back-cta .cta.ghost{font-size:14px}

/* footer */
.foot{border-top:1px solid var(--line-soft);padding:34px 0 40px;text-align:center}
.foot .fbrand{font-family:"仿宋","FangSong","FangSong_GB2312","STFangsong",serif;font-size:22px;color:var(--paper);letter-spacing:3px;margin-bottom:6px}
.foot p{font-size:13px;color:var(--paper-mute);letter-spacing:1px}

/* toast */
#toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);z-index:99;
  background:var(--ink2);border:1px solid var(--gold);color:var(--paper);padding:12px 24px;
  font-size:14px;letter-spacing:1px;border-radius:4px;opacity:0;pointer-events:none;transition:.3s;
  box-shadow:0 8px 30px rgba(0,0,0,.5)}
#toast.show{opacity:1;transform:translate(-50%,0)}

/* ===== 响应式 ===== */
@media(max-width:920px){
  .hero-grid{grid-template-columns:1fr}
  .res-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .about-wrap{grid-template-columns:1fr}
  .hero h1{font-size:46px}
  .motto-strip{flex-direction:column}
  .motto-strip span{border-left:none;border-bottom:1px solid var(--line-soft)}
  .tl-card{grid-template-columns:1fr}
  .tl-img{min-height:150px;border-right:none;border-bottom:1px solid var(--line-soft)}
  .list-grid{grid-template-columns:repeat(2,1fr)}
  .page-title{font-size:32px}
  /* 移动端下拉菜单 */
  .nav-toggle{display:flex;margin-left:auto;flex-direction:column;gap:5px;
    background:none;border:1px solid var(--gold-dim);border-radius:4px;padding:10px;cursor:pointer}
  .nav-toggle span{width:22px;height:2px;background:var(--gold-bright);display:block}
  .nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;
    background:rgba(13,10,6,.97);padding:8px 24px 16px;border-bottom:1px solid var(--line-soft)}
  .nav.open{display:flex}
  .nav a{padding:12px 4px;font-size:15px;border-bottom:1px dashed var(--line-soft);border-radius:0}
  .nav a:last-child{border-bottom:none}
}
@media(max-width:520px){
  .res-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .brand-name{font-size:24px}
  body{font-size:15px}
  .list-grid{grid-template-columns:1fr}
  .article-title{font-size:26px}
  .page-title{font-size:27px}
}