*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --paper:#fffbf7;--white:#fff;--indigo:#4f46e5;--indigo-l:#6366f1;
  --ink:#1e1b2e;--muted:#6b6580;--line:#e8e4f0;--accent:#f59e0b;
  --serif:"Noto Serif SC","Libre Baskerville",Georgia,serif;
  --sans:"Source Sans 3","Noto Sans SC",system-ui,sans-serif;
  --mono:"Source Code Pro",monospace;
  --max:1080px;--pad:clamp(18px,4vw,36px);--section:clamp(56px,7vw,84px)
}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.7;overflow-x:hidden}
a{color:var(--indigo);text-decoration:none}
img{display:block;max-width:100%;border-radius:6px}

.ticker{background:var(--indigo);color:#fff;overflow:hidden;padding:10px 0;font-size:.78rem}
.ticker-track{display:flex;gap:48px;animation:ticker 32s linear infinite;width:max-content}
.ticker-item{display:flex;align-items:center;gap:8px;white-space:nowrap}
.ticker-item .tag{background:var(--accent);color:var(--ink);padding:2px 8px;border-radius:3px;font-size:.65rem;font-weight:700}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

.topbar{position:sticky;top:0;z-index:200;background:var(--white);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:var(--max);margin:0 auto;padding:0 var(--pad);height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:1rem;color:var(--ink);text-decoration:none}
.brand img{width:30px;height:30px}
.topnav{display:flex;gap:4px}
.topnav a{padding:7px 14px;color:var(--muted);font-size:.82rem;font-weight:600;text-decoration:none;border-radius:4px;transition:.2s}
.topnav a:hover{color:var(--indigo);background:rgba(79,70,229,.06)}
.topnav a.on{color:#fff;background:var(--indigo)}
.nav-cta{padding:8px 18px;background:var(--indigo);color:#fff;font-size:.82rem;font-weight:700;text-decoration:none;border-radius:4px}
.nav-cta:hover{background:var(--indigo-l)}

.dl-cta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:28px;padding:22px 26px;background:var(--white);border:2px solid var(--indigo);border-radius:8px;box-shadow:0 8px 28px rgba(79,70,229,.1)}
.dl-cta-bar .ver-badge{font-family:var(--mono);font-size:.72rem;color:var(--indigo);background:rgba(79,70,229,.08);padding:5px 12px;border-radius:4px;font-weight:600}
.btn-xl{padding:15px 28px;font-size:.92rem;font-weight:700;border-radius:4px;box-shadow:0 4px 18px rgba(79,70,229,.25);transition:.2s}
.btn-xl.btn-fill{background:var(--indigo);color:#fff}
.btn-xl.btn-fill:hover{background:var(--indigo-l);transform:translateY(-1px)}
.dl-cta-note{font-size:.78rem;color:var(--muted);line-height:1.5;max-width:300px}
.dl-box{position:relative}
.dl-box.rec{border-color:var(--indigo);box-shadow:0 0 0 1px var(--indigo)}
.dl-box .rec-tag{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:var(--indigo);color:#fff;font-size:.62rem;font-weight:700;padding:3px 10px;border-radius:10px;white-space:nowrap}
.dl-box .plat{font-family:var(--mono);font-size:.68rem;font-weight:600;color:var(--indigo);margin-bottom:6px}
.dl-section-head{margin-bottom:18px}
.dl-section-head h2{font-family:var(--serif);font-size:1.25rem;margin-bottom:4px}
.dl-section-head p{font-size:.82rem;color:var(--muted)}
.masthead-actions .btn-xl{box-shadow:0 4px 18px rgba(79,70,229,.25)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.crumb{padding:16px 0 0;font-size:.72rem;color:var(--muted)}

.masthead{padding:clamp(40px,6vw,64px) 0;display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.masthead-kicker{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--indigo);margin-bottom:10px;font-weight:600}
.masthead h1{font-family:var(--serif);font-size:clamp(2rem,4vw,2.8rem);font-weight:700;line-height:1.12}
.masthead h1 em{font-style:italic;color:var(--indigo)}
.masthead-lead{color:var(--muted);font-size:.92rem;margin-top:14px;max-width:460px}
.masthead-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.btn{padding:11px 22px;font-size:.82rem;font-weight:700;border-radius:4px;text-decoration:none;display:inline-block;transition:.2s}
.btn-fill{background:var(--indigo);color:#fff}
.btn-fill:hover{background:var(--indigo-l)}
.btn-line{border:1px solid var(--indigo);color:var(--indigo)}
.btn-line:hover{background:rgba(79,70,229,.06)}
.paper-stack{position:relative}
.paper-back,.paper-mid,.paper-front{position:absolute;border-radius:6px;background:var(--white);border:1px solid var(--line)}
.paper-back{width:90%;height:90%;top:8%;left:5%;transform:rotate(-3deg);opacity:.5}
.paper-mid{width:94%;height:94%;top:4%;left:3%;transform:rotate(1.5deg);opacity:.75}
.paper-front{position:relative;z-index:2;box-shadow:0 16px 40px rgba(30,27,46,.12);overflow:hidden}
.paper-front img{width:100%;cursor:pointer}

.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:var(--section) 0;border-block:1px solid var(--line)}
.stat-cell{text-align:center;padding:16px}
.stat-cell b{display:block;font-family:var(--serif);font-size:1.6rem;color:var(--indigo);margin-bottom:4px}
.stat-cell span{font-size:.72rem;color:var(--muted)}

.section{padding:var(--section) 0}
.section-label{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--indigo);margin-bottom:6px;font-weight:600}
.section h2{font-family:var(--serif);font-size:clamp(1.4rem,3vw,1.9rem);margin-bottom:10px}
.section .lead{color:var(--muted);font-size:.88rem;margin-bottom:28px;max-width:540px}

.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.info-card{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:24px;transition:.25s}
.info-card:hover{box-shadow:0 8px 24px rgba(79,70,229,.08);border-color:var(--indigo-l)}
.info-card .tag{font-family:var(--mono);font-size:.68rem;color:var(--indigo);font-weight:600;margin-bottom:8px}
.info-card h3{font-family:var(--serif);font-size:1rem;margin-bottom:8px}
.info-card p{font-size:.84rem;color:var(--muted)}

.editorial{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.editorial img{cursor:pointer;box-shadow:0 12px 32px rgba(30,27,46,.1)}
.editorial h3{font-family:var(--serif);font-size:1.15rem;margin-bottom:10px}
.editorial p{color:var(--muted);font-size:.88rem;margin-bottom:12px}
.editorial blockquote{border-left:3px solid var(--indigo);padding-left:16px;margin:16px 0;font-family:var(--serif);font-style:italic;color:var(--ink)}

.news-feed{display:flex;flex-direction:column;gap:12px}
.news-item{display:grid;grid-template-columns:88px 1fr;gap:16px;padding:20px;background:var(--white);border:1px solid var(--line);border-radius:8px;text-decoration:none;color:inherit;transition:.2s}
.news-item:hover{border-color:var(--indigo);box-shadow:0 4px 16px rgba(79,70,229,.06)}
.news-item time{font-size:.74rem;color:var(--indigo);font-weight:600}
.news-item h3{font-family:var(--serif);font-size:.95rem;margin-bottom:4px}
.news-item p{font-size:.82rem;color:var(--muted)}

.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:18px}
.faq-item h4{font-family:var(--serif);font-size:.9rem;margin-bottom:6px;color:var(--indigo)}
.faq-item p{font-size:.84rem;color:var(--muted)}

.site-foot{padding:32px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.78rem;color:var(--muted)}
.friend-links{width:100%;margin-top:8px;font-size:.72rem}

.page-head{padding:40px 0 24px}
.page-head h1{font-family:var(--serif);font-size:clamp(1.8rem,3.5vw,2.4rem);margin-bottom:10px}
.page-head p{color:var(--muted);max-width:560px}

.news-timeline{padding-bottom:var(--section)}
.news-tl{padding:32px 0;border-bottom:1px solid var(--line)}
.news-tl time{font-size:.76rem;color:var(--indigo);font-weight:600}
.news-tl h3{font-family:var(--serif);font-size:1.15rem;margin:8px 0 12px}
.news-tl p{color:var(--muted);font-size:.9rem;margin-bottom:12px;line-height:1.75}
.news-tl img{margin-top:16px;cursor:pointer;box-shadow:0 8px 24px rgba(30,27,46,.1)}

.dl-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:24px}
.dl-box{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:24px;text-align:center}
.dl-box h3{font-family:var(--serif);margin:10px 0 6px}
.dl-box p{font-size:.82rem;color:var(--muted);margin-bottom:14px}

.prose{max-width:680px}
.prose h2{font-family:var(--serif);font-size:1.2rem;margin:28px 0 10px;color:var(--indigo)}
.prose p{color:var(--muted);margin-bottom:12px;font-size:.9rem}
.prose code{font-family:var(--mono);background:rgba(79,70,229,.08);padding:2px 6px;border-radius:3px;font-size:.85rem}
.prose ul,.prose ol{color:var(--muted);font-size:.9rem;margin:0 0 12px 20px}
.prose li{margin-bottom:6px}

.dl-hero{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;padding-bottom:24px}
.dl-hero img{cursor:pointer;box-shadow:0 12px 32px rgba(30,27,46,.12)}
.dl-box .size{font-size:.72rem;color:var(--muted);margin:4px 0 14px}

.channel-note{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--indigo);border-radius:0 8px 8px 0;padding:20px 24px;margin:24px 0}
.channel-note h3{font-family:var(--serif);font-size:1rem;margin-bottom:10px;color:var(--indigo)}
.channel-note p{font-size:.88rem;color:var(--muted);line-height:1.75;margin-bottom:10px}
.channel-note p:last-child{margin-bottom:0}

.dl-faq{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.dl-faq-item{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:18px}
.dl-faq-item h4{font-family:var(--serif);font-size:.9rem;margin-bottom:6px;color:var(--indigo)}
.dl-faq-item p{font-size:.84rem;color:var(--muted);line-height:1.65}

@media(max-width:820px){.dl-hero,.dl-faq{grid-template-columns:1fr}}

/* ── Download: editorial release table (unique to 资讯站) ── */
.dl-masthead{
  border-bottom:3px double var(--line);padding-bottom:32px;margin-bottom:32px
}
.dl-masthead .kicker{font-family:var(--mono);font-size:.72rem;color:var(--indigo);letter-spacing:.1em;margin-bottom:10px}
.dl-masthead h1{font-family:var(--serif);font-size:clamp(2rem,4vw,2.6rem);line-height:1.15;margin-bottom:12px}
.dl-masthead .lead{font-size:.95rem;color:var(--muted);max-width:560px;line-height:1.75}
.dl-masthead .official-bar{
  margin-top:24px;padding:18px 22px;background:var(--white);
  border:1px solid var(--line);border-left:4px solid var(--indigo);
  display:flex;flex-wrap:wrap;align-items:center;gap:16px
}
.dl-masthead .official-bar p{font-size:.84rem;color:var(--muted);flex:1;min-width:200px;margin:0}

.release-table{width:100%;border-collapse:collapse;font-size:.88rem}
.release-table th,.release-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.release-table th{
  font-family:var(--serif);font-weight:700;color:var(--ink);
  background:rgba(79,70,229,.04);font-size:.82rem
}
.release-table td{color:var(--muted);line-height:1.65}
.release-table .ver-cell{font-family:var(--mono);font-weight:600;color:var(--indigo);white-space:nowrap}
.release-table .tag-stable{display:inline-block;background:rgba(79,70,229,.12);color:var(--indigo);font-size:.68rem;padding:2px 8px;border-radius:3px;margin-left:6px}
.release-table .tag-alpha{background:rgba(245,158,11,.15);color:#b45309}
.release-table a{color:var(--indigo);font-weight:600;font-size:.82rem;white-space:nowrap}

.channel-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.channel-col{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:22px}
.channel-col h3{font-family:var(--serif);font-size:1rem;margin-bottom:6px;color:var(--ink)}
.channel-col .ch-tag{font-family:var(--mono);font-size:.68rem;color:var(--indigo);margin-bottom:12px}
.channel-col p{font-size:.84rem;color:var(--muted);line-height:1.7;margin-bottom:14px}
.channel-col .btn{width:100%;text-align:center}

.hero-aside-dl{
  margin-top:20px;padding:16px 20px;background:var(--white);
  border:1px solid var(--line);border-radius:6px;max-width:400px
}
.hero-aside-dl p{font-size:.82rem;color:var(--muted);margin-bottom:10px;line-height:1.6}
.hero-aside-dl .btn{margin-right:8px}
@media(max-width:820px){.channel-cols{grid-template-columns:1fr}}

.modal{position:fixed;inset:0;background:rgba(30,27,46,.85);z-index:999;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:.3s}
.modal.open{opacity:1;pointer-events:auto}
.modal img{max-width:92vw;max-height:88vh;border-radius:6px}
.modal-close{position:absolute;top:20px;right:24px;background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer}

@media(max-width:820px){
  .masthead,.editorial,.stat-row{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .news-item{grid-template-columns:1fr}
}