/* ===========================================================================
   天联官网前端样式 —— 深色 / 蓝灰主题（恢复原站风格，已移除银雕 news-reference）
   仅前端资源；导航图高亮与背景图复用旧主题 assets/img。
   =========================================================================== */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;min-width:320px;background:#131720;color:#d8dce5;
  font-family:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;padding:0}
img{vertical-align:middle;max-width:100%}
[hidden]{display:none!important}
a:focus-visible,button:focus-visible{outline:2px solid #7fa8d6;outline-offset:4px}
.skip{position:fixed;top:-120px;left:8px;z-index:3000;background:#fff;color:#111;padding:12px 16px;border-radius:6px}
.skip:focus{top:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 侧边导航 ---------- */
.mobile-header,.mobile-menu-close,.mobile-only{display:none}
.side-nav{position:fixed;left:0;top:0;width:311px;height:100vh;z-index:100;
  background:#0c1018 linear-gradient(160deg,#161d2b 0%,#0d1220 60%,#0a0e18 100%);
  border-right:1px solid #243047;box-shadow:2px 0 18px #0008;overflow:hidden}
.side-nav.no-bg{background:#0c1018 linear-gradient(160deg,#161d2b 0%,#0d1220 60%,#0a0e18 100%)}
.side-nav nav{height:100%;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;
  margin-left:64px;width:180px;position:relative}
.nav-item{position:relative;display:block;margin:14px 0;flex-shrink:0;transition:transform .2s}
.nav-item img{max-width:none;height:auto;transition:transform .2s;transform-origin:center;filter:drop-shadow(0 2px 6px #0006)}
.nav-item.is-active img{transform:scale(1.18)}
.nav-text{width:200px;height:64px;display:flex;align-items:center;justify-content:center;
  font-family:"SimSun",serif;font-size:30px;letter-spacing:4px;color:#9aa6b8;text-shadow:2px 2px 2px #000}
.nav-text.is-active{color:#eaf1fb;transform:scale(1.12);transition:transform .2s}
.nav-glow{position:absolute;left:1%;top:21%;width:279px;height:172px;pointer-events:none;
  opacity:.85;transition:top .5s}

/* ---------- 主体视口 ---------- */
.viewport{height:100vh;overflow:hidden}
.screen-track{} /* 本版采用流式滚动，非整屏位移 */
.screen{min-height:100vh;position:relative;overflow:hidden;background-position:top center;
  background-size:cover;background-repeat:no-repeat;padding:90px 40px 60px 360px}
.home-screen{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;min-height:100vh}
/* 首页原生 h1 + 游戏信息（服务端渲染，非纯 JS） */
.home-hero{max-width:680px;margin:0 0 8px 8px;text-shadow:0 2px 10px #000a}
.home-hero h1{font-family:"SimSun",serif;font-weight:400;color:#eaf1fb;font-size:40px;letter-spacing:3px;
  margin:0 0 14px;line-height:1.3;text-shadow:0 2px 12px #000}
.home-hero .home-intro{color:#c3d2e8;font-size:15px;line-height:1.9;margin:0;
  background:linear-gradient(180deg,rgba(12,18,30,.55),rgba(12,18,30,.35));border:1px solid #2a3a55;
  border-radius:10px;padding:14px 18px;backdrop-filter:blur(2px)}
.screen-title{font-family:"SimSun",serif;font-size:34px;letter-spacing:6px;color:#cfe0f5;
  text-shadow:0 2px 8px #000;margin:0 0 20px}

/* 首页装饰元素 */
.download-actions{position:absolute;left:370px;bottom:8%;display:flex;gap:14px}
.download-actions a{transition:transform .2s}
.download-actions a:hover{transform:translateY(-4px)}
.download-actions img{width:230px;height:auto}
.social-links{position:absolute;left:372px;bottom:3%;display:flex;gap:18px}
.social-links img{width:42px;height:42px;object-fit:contain;opacity:.9;transition:transform .2s,opacity .2s}
.social-links a:hover img{transform:scale(1.12);opacity:1}
.next-screen{position:absolute;left:50%;bottom:2%;transform:translateX(-50%);color:#bcd0ec;
  font-size:13px;letter-spacing:3px;animation:bob 1.8s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,6px)}}

.role-decoration{position:absolute;right:6%;top:14%;max-width:42%}
.role-art{position:absolute;right:10%;top:24%;max-width:34%}
.feature-stage{position:relative;max-width:60%;margin:0 auto}
.feature-frame-img{width:100%;display:block;border-radius:8px;box-shadow:0 10px 40px #000a}

/* ---------- 新闻区（深色卡片，非银框） ---------- */
.news-screen{padding:80px 40px 60px 360px}
.news-shell{width:min(1280px,calc(100% - 380px));margin:0 32px 0 auto;
  background:linear-gradient(180deg,rgba(20,28,42,.92),rgba(13,18,30,.95));
  border:1px solid #2a3a55;border-radius:14px;padding:34px 36px 30px;
  box-shadow:0 18px 50px #0009;max-height:calc(100vh - 130px);overflow:auto;overscroll-behavior:contain}
.news-heading{margin:0 0 22px;text-align:center}
.news-heading h2{font-family:"SimSun",serif;font-size:34px;font-weight:400;letter-spacing:6px;
  color:#eaf1fb;margin:0 0 6px;text-shadow:0 1px 6px #000}
.news-heading p{color:#8aa0c0;font:11px Georgia,serif;letter-spacing:4px;margin:6px 0}
.news-heading::after{content:"◇";display:block;color:#5e78a0;text-align:center;
  line-height:12px;margin:12px auto 0;max-width:300px;
  background:linear-gradient(90deg,transparent,#5e78a0 42%,transparent 42%,transparent 58%,#5e78a0 58%,transparent) center/100% 1px no-repeat}

.news-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);gap:26px;align-items:start}
.news-carousel{position:relative;min-height:440px;border:1px solid #2f4366;
  border-radius:10px;background:#0e1626;overflow:hidden;box-shadow:inset 0 0 0 1px #1a2740}
.news-slide{position:absolute;inset:0;opacity:0;pointer-events:none;display:flex;flex-direction:column;
  transition:opacity .35s ease;text-decoration:none}
.news-slide.is-active{opacity:1;pointer-events:auto}
.news-slide img{width:100%;height:62%;object-fit:cover;object-position:center;border-bottom:1px solid #2a3b58}
.news-slide>div{padding:18px 22px;background:linear-gradient(transparent,#0e1626 30%,#0e1626);flex:1;color:#cdd9ec}
.news-slide small{display:inline-block;color:#8fb0d8;font-size:12px;letter-spacing:1px}
.news-slide h2{font-size:20px;color:#eef4ff;margin:6px 0;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-slide p{color:#9fb1cc;font-size:13px;line-height:1.6;margin:4px 0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.carousel-controls{position:absolute;bottom:10px;left:12px;right:12px;display:flex;align-items:center;gap:10px;z-index:3}
.carousel-controls>button{width:40px;height:40px;font-size:22px;color:#cfe0f5;
  background:rgba(10,16,28,.6);border-radius:50%;border:1px solid #2c4066;transition:background .2s}
.carousel-controls>button:hover{background:rgba(40,70,110,.8)}
.carousel-controls [data-news-dots]{flex:1;display:flex;justify-content:center;gap:8px}
.news-dot{width:36px;height:40px;background:none;position:relative}
.news-dot::after{content:"";position:absolute;left:14px;top:16px;width:8px;height:8px;
  border:1px solid #5e7aa0;transform:rotate(45deg);background:#16223a;transition:background .2s,box-shadow .2s}
.news-dot.is-active::after{background:#6fa3d8;box-shadow:0 0 8px #8fc4f3}
.carousel-count{font:12px Georgia,serif;letter-spacing:2px;color:#9fb1cc;white-space:nowrap}
.carousel-progress{position:absolute;bottom:0;left:0;right:0;height:3px;background:#22324c}
.carousel-progress span{display:block;height:100%;background:#5e9bdc;transition:width .3s}

.news-panel{display:flex;flex-direction:column;min-width:0}
.news-tabs{display:flex;gap:6px;margin-bottom:10px;border-bottom:1px solid #2c3f5e;padding-bottom:8px}
.news-tab{min-height:42px;padding:8px 14px;font-size:15px;color:#9db0cc;border:1px solid #2c3f5e;
  border-radius:8px 8px 0 0;background:#0f1a2c;transition:color .2s,box-shadow .2s}
.news-tab:hover{color:#cfe2ff}
.news-tab.is-active{color:#eaf3ff;border-color:#3f6aa0;
  background:linear-gradient(#16263f,#0f1a2c);box-shadow:inset 0 0 0 1px #21385a}
.news-items{flex:1;transition:opacity .18s}
.news-items[aria-busy="true"]{opacity:.5}
.news-row{border-bottom:1px solid #24365280}
.news-row a{display:flex;gap:14px;padding:14px 4px;align-items:center;position:relative;text-decoration:none;transition:background .2s}
.news-row a::after{content:"›";align-self:center;font:24px Georgia,serif;color:#5e78a0;margin-left:auto;transition:transform .2s}
.news-row a:hover{background:#16233a;box-shadow:0 0 14px #0006}
.news-row a:hover::after{transform:translateX(3px);color:#9fc4ee}
.news-thumb{width:96px;height:66px;flex:0 0 96px;object-fit:cover;border:1px solid #2c3f5e;border-radius:4px;background:#0e1626}
.news-row-body{min-width:0;flex:1}
.news-category{font-size:10px;color:#6f8cb0;letter-spacing:1px}
.news-row-title{display:block;color:#dce8fb;font-size:15px;line-height:1.4;margin:2px 0;font-weight:500;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-intro{font-size:12px;line-height:1.5;color:#94a6c2;margin:3px 0;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-date{font-size:10px;color:#6f88a8;white-space:normal;overflow-wrap:anywhere}
.news-more{display:flex;justify-content:flex-end;align-items:center;color:#7fa8d6;margin:10px 0 0;letter-spacing:2px;font-size:14px}
.news-more:hover{color:#bfe0ff}

.pagination{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;align-items:center;color:#9db0cc}
.pagination a,.pagination .is-active,.pagination .page-disabled{min-height:38px;min-width:38px;display:inline-flex;
  align-items:center;justify-content:center;padding:0 9px;border:1px solid #2c3f5e;border-radius:6px;background:#0f1a2c}
.pagination a:hover{background:#16263f}
.pagination .is-active{color:#eaf3ff;border-color:#3f6aa0;background:#16263f;font-weight:700}
.pagination .page-disabled{opacity:.4;cursor:not-allowed}
.pagination .page-gap{opacity:.6;padding:0 2px}
.page-current{font-size:13px;color:#9db0cc}
.empty{color:#8aa0c0;text-align:center;padding:30px 0;font-size:14px}

/* ---------- 1920x750 共享横幅 ---------- */
.news-banner{aspect-ratio:1920/750;width:100%;margin-bottom:26px;overflow:hidden;border-radius:10px;
  border:1px solid #2c3f5e;background:#0e1626;box-shadow:0 8px 30px #0008}
.news-banner img{display:block;width:100%;height:100%;object-fit:cover}
.banner-fallback{background:linear-gradient(120deg,#1a2embed,#13203a 50%,#0e1830);
  background:linear-gradient(120deg,#1a2a4a,#13203a 50%,#0e1830);display:flex;align-items:center;justify-content:center}
.banner-fallback::after{content:"NEWS";font-family:"SimSun",serif;font-size:48px;letter-spacing:14px;color:#2f4a72}

/* ---------- 文档 / 文章 ---------- */
.document-view{padding:70px 40px 50px 360px;min-height:100vh;background-color:#0f1626}
.is-document .viewport{display:none}
.document-shell{max-width:1180px;margin:0 auto;padding:30px 26px;min-height:70vh}
.breadcrumb{color:#7f95b6;margin-bottom:12px;line-height:1.9;font-size:13px}
.breadcrumb a:hover{color:#bfe0ff}
.back-link{display:inline-flex;align-items:center;min-height:40px;color:#7fa8d6;margin-bottom:12px;font-size:14px}
.back-link:hover{color:#bfe0ff}
.article-card h1{font-family:"SimSun",serif;font-weight:400;color:#eef4ff;letter-spacing:2px;font-size:30px;
  line-height:1.6;text-align:center;margin:18px 0 10px}
.article-meta{text-align:center;color:#8aa0c0;margin-bottom:22px;font-size:12px}
.article-cover{border:1px solid #2c3f5e;border-radius:8px;width:100%;max-height:none;aspect-ratio:16/9;object-fit:cover;margin-bottom:18px}
.article-content{color:#cdd9ec;line-height:2;font-size:15px;overflow-x:auto}
.article-content h2{color:#dcebff;border-bottom:1px solid #2c3f5e;padding-bottom:8px;margin-top:26px}
.article-content h3{color:#bcd2f0}
.article-content blockquote{border-left:3px solid #3f6aa0;background:#162339;padding:12px 18px;margin:20px 0;border-radius:0 8px 8px 0}
.article-content table{width:100%;border-collapse:collapse;font-size:14px;margin:16px 0}
.article-content th,.article-content td{border:1px solid #2c3f5e;padding:10px;overflow-wrap:anywhere}
.article-content th{background:#16233a}
.article-content a{color:#7fb4ee;text-decoration:underline}
.article-neighbours{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid #2c3f5e;margin-top:30px;padding-top:16px;color:#8aa0c0}
.article-neighbours a{color:#7fa8d6;min-height:40px;display:inline-flex;align-items:center}
.article-neighbours a:hover{color:#bfe0ff}

/* ---------- 内容区块（按 position 可视化定位） ---------- */
.slot-zone{position:relative}
.custom-block img{max-width:100%;border-radius:6px;display:block}
.custom-block video{max-width:100%;border-radius:6px}
.custom-block .block-title{font-family:"SimSun",serif;color:#eaf1fb;font-size:18px;margin:0 0 6px}
.custom-block .block-text{color:#cdd9ec;line-height:1.9;font-size:14px}
.custom-block .block-empty{color:#8aa0c0;font-size:13px;padding:8px 0}
.blk-top{position:absolute;top:8px;left:8px;right:8px;z-index:5}
.blk-bottom{position:absolute;bottom:8px;left:8px;right:8px;z-index:5}
.blk-left{position:absolute;top:50%;left:8px;transform:translateY(-50%);z-index:5;max-width:240px}
.blk-right{position:absolute;top:50%;right:8px;transform:translateY(-50%);z-index:5;max-width:240px}
.blk-inline{margin:14px 0}

/* ---------- 页脚 ---------- */
.site-footer{background:linear-gradient(#16223a,#0d1424);border-top:1px solid #243652;color:#8aa0c0;
  padding:34px 40px 34px 360px}
.footer-inner{max-width:1180px;margin:0 auto}
.footer-inner nav{display:flex;gap:18px;margin:10px 0;color:#6f88a8;font-size:13px}
.footer-inner nav a:hover{color:#bfe0ff}
.footer-note{font-size:12px;color:#6f88a8;margin:6px 0 0}

/* ---------- 弹层 ---------- */
.modal{width:min(520px,92vw);border:1px solid #2c3f5e;border-radius:12px;padding:0;background:#101a2c;color:#d8dce5}
.modal::backdrop{background:rgba(5,8,14,.7)}
.modal-card{padding:24px 26px;position:relative}
.modal-close{position:absolute;top:10px;right:14px;font-size:28px;color:#9db0cc}
.modal h2{font-family:"SimSun",serif;margin:0 0 14px;color:#eaf1fb}
.noscript{background:#1a2436;color:#cdd9ec;padding:10px 16px;margin:10px}

/* ---------- 响应式 ---------- */
@media(min-width:768px) and (max-width:1100px){
  .side-nav{width:230px}.side-nav nav{margin-left:18px}.nav-item img{max-width:170px}
  .screen,.news-screen,.document-view,.site-footer{padding-left:260px}
  .news-shell{width:calc(100% - 280px);margin-right:18px}
  .news-layout{grid-template-columns:1fr;gap:18px}
  .news-carousel{min-height:320px}
  .download-actions{left:280px}.download-actions img{width:180px}.social-links{left:282px}
}
@media(max-width:767px){
  html,body{overflow-x:hidden}
  .mobile-header{display:flex;align-items:center;justify-content:space-between;position:fixed;left:0;right:0;top:0;
    height:64px;padding:0 14px 0 10px;background-size:cover;z-index:120;border-bottom:1px solid #243047}
  .mobile-header img{width:108px;height:auto;object-fit:contain}
  .menu-toggle{width:42px;height:42px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px}
  .menu-toggle span{width:22px;height:2px;background:#b9c5d9;border-radius:2px}
  .side-nav{display:none;width:100%;height:100dvh;background:#0c1018f2!important;z-index:130}
  .side-nav.is-open{display:block}
  .side-nav nav{margin:0;align-items:center;width:100%;padding:80px 0;gap:2px}
  .nav-item{margin:8px 0}.nav-item img{width:200px;height:auto}
  .nav-glow{display:none}.mobile-menu-close{display:block;position:absolute;right:16px;top:16px;font-size:34px;color:#cdd9ec}
  .viewport{height:auto;overflow:visible;padding-top:64px}
  .screen{min-height:auto;padding:80px 16px 40px!important;background-position:center}
  .home-screen{min-height:78vh}
  .download-actions{position:static;justify-content:center;margin:24px 0 8px;flex-wrap:wrap}
  .download-actions img{width:46%}
  .social-links{position:static;justify-content:center;margin:14px 0 8px}
  .next-screen{display:none}
  .role-decoration,.role-art,.feature-stage{max-width:90%;margin:0 auto;position:relative;right:auto;top:auto}
  .news-screen{padding:30px 14px 40px!important}
  .news-shell{width:100%;margin:0;max-height:none;overflow:visible;padding:22px 16px;border-radius:10px}
  .news-heading h2{font-size:28px}
  .news-layout{display:flex;flex-direction:column;gap:22px}
  .news-carousel{min-height:300px}
  .news-row a{gap:10px;padding:12px 0}.news-thumb{width:84px;height:64px;flex-basis:84px}
  .news-row-title{font-size:14px}.news-intro{font-size:11px}
  .document-view{padding:84px 14px 32px!important}
  .document-shell{padding:18px 12px}
  .article-card h1{font-size:24px}.article-neighbours>*{max-width:100%}
  .site-footer{padding:30px 16px!important}
  .blk-left,.blk-right{position:static;transform:none;max-width:none;margin:10px 0}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}