/* 九游娱乐官网 - 游戏技术研究室 × XR体验中心 × 数字娱乐科技杂志 视觉系统 */
:root{
  --ink:#f1efe9;
  --graphite:#141619;
  --graphite2:#1b1e23;
  --graphite3:#22262c;
  --line-dark:#2b2f36;
  --paper:#f4f1ea;
  --paper-alt:#eae5da;
  --text:#1a1c1f;
  --text-soft:#585f66;
  --text-faint:#8a9098;
  --line:#ddd7c8;
  --card:#ffffff;
  --cyan:#28d6cf;
  --cyan-deep:#0f9e98;
  --cyan-tint:#e3f8f6;
  --violet:#8a6ff2;
  --violet-tint:#eee9fd;
  --orange:#e08a3c;
  --orange-tint:#faead4;
  --coral:#d9634f;
  --max-w:1200px;
  --measure:800px;
  --radius:10px;
  --shadow-sm:0 1px 3px rgba(10,12,14,.08);
  --shadow-md:0 10px 26px rgba(10,12,14,.14);
  --mono:"SF Mono","Roboto Mono","Consolas",monospace;
  --sans:"Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,sans-serif;
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);background:var(--paper);color:var(--text);line-height:1.85;font-size:15.5px;-webkit-font-smoothing:antialiased}
a{color:var(--cyan-deep);text-decoration:none;transition:color .15s ease}
a:hover{color:#0b7a75;text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.measure{max-width:var(--measure);margin:0 auto}
strong{color:var(--text)}
code,.mono{font-family:var(--mono)}

/* ---------- header ---------- */
header.gh{background:var(--graphite);color:var(--ink);border-bottom:1px solid var(--line-dark);position:sticky;top:0;z-index:50}
header.gh::after{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--cyan) 0 40%,var(--violet) 40% 75%,var(--orange) 75% 100%)}
header.gh .bar{max-width:var(--max-w);margin:0 auto;padding:13px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.brand{font-weight:800;font-size:18px;color:#fff;letter-spacing:.3px;white-space:nowrap;display:inline-flex;align-items:center;gap:9px}
.brand em{font-style:normal;color:var(--cyan)}
nav.gnav ul{list-style:none;margin:0;padding:0;display:flex;gap:3px;flex-wrap:wrap}
nav.gnav a{position:relative;display:inline-block;color:#aab0b8;font-size:13px;font-weight:700;white-space:nowrap;padding:8px 10px;border-radius:6px}
nav.gnav a:hover{color:var(--cyan);background:rgba(40,214,207,.08);text-decoration:none}
nav.gnav a.active{color:var(--cyan);background:rgba(40,214,207,.12)}
.gh .cta{display:flex;gap:8px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 17px;border-radius:6px;font-size:13px;font-weight:700;border:1px solid transparent;white-space:nowrap;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}
.btn-cyan{background:var(--cyan);color:#06201f;box-shadow:var(--shadow-sm)}
.btn-cyan:hover{background:#3fe6df;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-line{border-color:#454c55;color:var(--ink);background:transparent}
.btn-line:hover{border-color:var(--cyan);color:var(--cyan);text-decoration:none}
.btn-ghost{border-color:var(--line);color:var(--text);background:#fff}
.btn-ghost:hover{border-color:var(--cyan-deep);color:var(--cyan-deep);text-decoration:none}
.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed}
.btn svg{width:15px;height:15px;flex:none}

.crumb{background:var(--graphite2);border-bottom:1px solid var(--line-dark);font-size:12.5px;color:#9aa0a8;padding:9px 0}
.crumb a{color:#9aa0a8}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--graphite);color:var(--ink);padding:40px 0 44px;border-bottom:1px solid var(--line-dark);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:34px 34px;pointer-events:none}
.hero .inner{position:relative;max-width:var(--max-w);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.5fr 420px;gap:36px;align-items:center}
.hero .eyebrow{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11.5px;letter-spacing:1.5px;font-weight:700;color:var(--cyan);background:rgba(40,214,207,.12);padding:5px 12px;border-radius:999px;margin-bottom:14px;text-transform:uppercase}
.hero h1{font-family:var(--serif);font-size:29px;margin:0 0 14px;color:#fff;line-height:1.5;font-weight:700}
.hero p.lede{color:#b9bfc6;font-size:15px;margin:0 0 20px;max-width:56ch}
.hero .entries{display:flex;gap:10px;flex-wrap:wrap}
.hero .frame{position:relative;border-radius:12px;background:var(--graphite2);border:1px solid var(--line-dark);box-shadow:var(--shadow-md);padding:14px}
.hero .frame img{max-width:400px;width:100%;border-radius:6px}
.hero .frame .frame-cap{font-size:11.5px;color:#8a9098;text-align:center;margin-top:8px}
@media(max-width:880px){.hero .inner{grid-template-columns:1fr}.hero .frame{max-width:300px;margin:0 auto}}

main{padding:0 0 60px}
section{padding:42px 0;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:none}
section.on-graphite{background:var(--graphite);color:var(--ink);position:relative}
section.on-graphite::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:34px 34px}
section.on-graphite .wrap{position:relative}
section.on-graphite h2{color:#fff;border-color:var(--cyan)}
section.on-graphite h2.kicker{color:var(--cyan)}
section.on-graphite p,section.on-graphite li{color:#b9bfc6}
section.on-alt{background:var(--paper-alt)}

h2.kicker{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:2.5px;text-transform:uppercase;color:var(--cyan-deep);margin:0 0 8px;font-weight:700}
h2{font-family:var(--serif);font-size:22px;margin:0 0 16px;padding-left:14px;border-left:4px solid var(--violet);font-weight:700}
h3{font-size:16.5px;margin:22px 0 8px;font-weight:700}
section.on-graphite h3{color:#f0f2ef}
.section-lead{max-width:var(--measure);margin:0 0 22px;color:var(--text-soft);font-size:14.5px}

/* ---------- pull quote / scenario ---------- */
.pullquote{font-family:var(--serif);font-size:20px;line-height:1.75;color:var(--cyan-deep);border-left:4px solid var(--orange);padding:4px 0 4px 22px;margin:22px auto;max-width:var(--measure)}
.scenario{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px 20px;box-shadow:var(--shadow-sm);max-width:var(--measure);margin:20px auto}
.scenario .s-icon{position:absolute;top:-16px;left:22px;width:34px;height:34px;border-radius:9px;background:var(--violet);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.scenario .s-icon svg{width:17px;height:17px}
.scenario h4{margin:6px 0 8px;font-family:var(--mono);font-size:12px;color:var(--text-faint);font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.scenario p{margin:0;font-size:14px}

.stat-strip{display:flex;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);box-shadow:var(--shadow-sm)}
.stat-strip>div{flex:1;padding:20px 12px;text-align:center;border-right:1px solid var(--line)}
.stat-strip>div:last-child{border-right:none}
.stat-strip .num{font-family:var(--serif);font-size:27px;font-weight:700;color:var(--cyan-deep);display:block;line-height:1.2}
.stat-strip .label{font-size:12px;color:var(--text-soft);margin-top:2px;display:block}
@media(max-width:760px){.stat-strip{flex-wrap:wrap}.stat-strip>div{flex:1 1 50%;border-bottom:1px solid var(--line)}}

.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.entry-grid a{position:relative;display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 16px 15px;font-size:13.5px;font-weight:700;color:var(--text);box-shadow:var(--shadow-sm);transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}
.entry-grid a .ic{width:30px;height:30px;border-radius:8px;background:var(--cyan-tint);color:var(--cyan-deep);display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.entry-grid a .ic svg{width:16px;height:16px}
.entry-grid a small{display:block;font-weight:400;color:var(--text-soft);font-size:12px;margin-top:4px}
.entry-grid a:hover{border-color:var(--cyan-deep);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-md)}
@media(max-width:880px){.entry-grid{grid-template-columns:repeat(2,1fr)}}

.dualcol{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.dualcol>div{border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;background:var(--card);box-shadow:var(--shadow-sm)}
.dualcol>div.neg{background:repeating-linear-gradient(135deg,#fff,#fff 10px,#f7f4ec 10px,#f7f4ec 20px)}
.dualcol>div.pos{border-color:var(--cyan-deep);background:var(--cyan-tint)}
.dualcol h3{margin-top:0;display:flex;align-items:center;gap:8px}
.dualcol ul{margin:8px 0 0;padding-left:0;font-size:13.5px;list-style:none}
.dualcol li{padding:5px 0 5px 22px;position:relative}
.dualcol .neg li::before{content:"·";position:absolute;left:4px;color:var(--text-faint);font-weight:900}
.dualcol .pos li::before{content:"✓";position:absolute;left:2px;color:var(--cyan-deep);font-weight:900;font-size:12px}
@media(max-width:760px){.dualcol{grid-template-columns:1fr}}

/* ---------- article preview card (homepage) ---------- */
.preview-list{display:flex;flex-direction:column;gap:18px}
.preview{display:grid;grid-template-columns:150px 1fr;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}
.preview .pv-meta{font-family:var(--mono);font-size:11px;color:var(--text-faint)}
.preview .pv-date{color:var(--cyan-deep);font-weight:700}
.preview .pv-cat{display:inline-block;margin-top:6px;background:var(--violet-tint);color:var(--violet);font-size:10.5px;font-weight:700;padding:2px 8px;border-radius:999px;letter-spacing:.3px}
.preview h3{margin:0 0 8px;font-size:16.5px;font-family:var(--serif)}
.preview .excerpt{font-size:13.5px;color:var(--text-soft);margin:0 0 6px}
.preview .body-preview{font-size:13px;color:var(--text-soft);border-top:1px dashed var(--line);padding-top:8px;margin:8px 0}
.preview .read-more{font-size:13px;font-weight:700}
@media(max-width:700px){.preview{grid-template-columns:1fr}}

/* ---------- deep article (news.html) ---------- */
article.deep{max-width:var(--measure);margin:0 auto 40px;padding-bottom:34px;border-bottom:1px dashed var(--line)}
article.deep:last-child{border-bottom:none;margin-bottom:0}
article.deep .tag{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--orange);background:var(--orange-tint);padding:4px 10px;border-radius:999px;margin-bottom:10px}
article.deep .art-meta{font-family:var(--mono);font-size:11.5px;color:var(--text-faint);margin-bottom:10px;display:flex;flex-wrap:wrap;gap:4px 14px}
article.deep h3{font-family:var(--serif);font-size:21px;margin:6px 0 14px;color:var(--text);line-height:1.5;font-weight:700}
article.deep p{margin:0 0 14px}
article.deep p:first-of-type::first-letter{font-family:var(--serif);font-size:1.6em;color:var(--cyan-deep);font-weight:700}
article.deep figure{margin:18px 0}
article.deep figure img{width:320px;margin:0 auto;border-radius:8px;border:1px solid var(--line)}
article.deep .cap{font-size:12.5px;color:var(--text-faint);text-align:center;margin-top:8px}
table.cmp{width:100%;border-collapse:collapse;font-size:13.5px;margin:16px 0;box-shadow:var(--shadow-sm);border-radius:8px;overflow:hidden}
table.cmp th,table.cmp td{border:1px solid var(--line);padding:10px 12px;text-align:left}
table.cmp th{background:var(--paper-alt);font-weight:700}
table.cmp tr:nth-child(even) td{background:#fbf9f4}
.source-box{background:var(--paper-alt);border-radius:8px;padding:14px 18px;font-size:12.5px;color:var(--text-soft);margin-top:16px}
.source-box strong{display:block;color:var(--text);margin-bottom:3px;font-size:12px}
.disclaimer{font-size:12px;color:var(--text-faint);border-left:3px solid var(--text-faint);padding:8px 14px;margin-top:10px}

/* ---------- flow / timeline ---------- */
.flow{display:flex;flex-wrap:wrap;gap:0;align-items:stretch;justify-content:center;margin:22px 0}
.flow .step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px 18px;font-size:13.5px;font-weight:700;text-align:center;min-width:104px;box-shadow:var(--shadow-sm)}
.flow .step small{display:block;font-weight:400;color:var(--text-soft);font-size:11.5px;margin-top:4px}
.flow .arrow{display:flex;align-items:center;color:var(--text-faint);font-size:16px;padding:0 8px}
.flow.on-dark .step{background:var(--graphite2);border-color:var(--line-dark);color:#fff}
.flow.on-dark .step small{color:#9aa0a8}
.flow.on-dark .arrow{color:#6b7178}

.tl{max-width:var(--measure);margin:0 auto;position:relative;padding-left:36px}
.tl::before{content:"";position:absolute;left:13px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--cyan) 0,var(--violet) 50%,var(--orange) 100%);opacity:.4}
.tl .tl-item{position:relative;margin-bottom:22px}
.tl .tl-item::before{content:"";position:absolute;left:-36px;top:2px;width:12px;height:12px;border-radius:50%;background:var(--cyan-deep);border:3px solid var(--paper)}
.tl .tl-date{font-family:var(--mono);font-size:11.5px;color:var(--text-faint);font-weight:700}
.tl h3{margin:2px 0 5px}
.tl p{margin:0;font-size:13.5px;color:var(--text-soft)}

table.dev{width:100%;border-collapse:collapse;font-size:13.5px;box-shadow:var(--shadow-sm);border-radius:8px;overflow:hidden}
table.dev th,table.dev td{border:1px solid var(--line);padding:10px 11px;text-align:center}
table.dev td:first-child,table.dev th:first-child{text-align:left;font-weight:700}
table.dev th{background:var(--paper-alt)}

.edit-note{position:relative;border-left:4px solid var(--violet);background:var(--card);padding:20px 24px;font-size:14px;color:var(--text-soft);max-width:var(--measure);margin:0 auto;border-radius:0 var(--radius) var(--radius) 0;box-shadow:var(--shadow-sm)}

.trouble{width:100%;border-collapse:collapse;font-size:13.5px}
.trouble th,.trouble td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}
.trouble th{background:var(--paper-alt)}
dl.trouble-list dt{font-weight:700;margin-top:18px;color:var(--text);display:flex;align-items:center;gap:8px}
dl.trouble-list dt::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral)}
dl.trouble-list dd{margin:5px 0 0 14px;color:var(--text-soft);font-size:13.5px}

.faq-list{max-width:var(--measure);margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);padding:16px 0}
.faq-item summary{cursor:pointer;font-weight:700;font-size:14.5px;list-style:none;display:flex;align-items:center;gap:10px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"Q";flex:none;width:22px;height:22px;border-radius:6px;background:var(--cyan-tint);color:var(--cyan-deep);font-family:var(--mono);font-size:12px;display:flex;align-items:center;justify-content:center}
.faq-item p{margin:10px 0 0 32px;color:var(--text-soft);font-size:13.5px}

.steps{counter-reset:st;max-width:var(--measure);margin:0 auto;position:relative;padding-left:8px}
.steps>div{position:relative;padding-left:46px;margin-bottom:20px}
.steps>div::before{counter-increment:st;content:counter(st);position:absolute;left:0;top:0;width:32px;height:32px;background:var(--cyan-deep);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;box-shadow:var(--shadow-sm)}
.steps>div:not(:last-child)::after{content:"";position:absolute;left:15px;top:32px;width:2px;height:calc(100% - 20px);background:var(--line)}
.steps h3{margin:0 0 4px}
.steps p{margin:0;color:var(--text-soft);font-size:13.5px}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:880px){.grid3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid3,.grid2{grid-template-columns:1fr}}
.feature{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:var(--card);box-shadow:var(--shadow-sm);transition:transform .12s ease,box-shadow .12s ease}
.feature:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.feature .f-ic{width:38px;height:38px;border-radius:10px;background:var(--cyan-tint);color:var(--cyan-deep);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.feature .f-ic svg{width:19px;height:19px}
.feature h3{margin-top:0}
.feature p{color:var(--text-soft);font-size:13.5px;margin:0}

.company{display:grid;grid-template-columns:1fr 300px;gap:26px}
.company table{width:100%;border-collapse:collapse;font-size:13px}
.company table th,.company table td{border:1px solid var(--line);padding:9px 11px;text-align:left}
.company table th{background:var(--paper-alt);width:34%}
.company .imgbox{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-sm)}
@media(max-width:760px){.company{grid-template-columns:1fr}}

.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips a{display:inline-flex;align-items:center;gap:6px;background:var(--card);border:1px solid var(--line);padding:9px 16px;border-radius:999px;font-size:13px;font-weight:700;color:var(--text);box-shadow:var(--shadow-sm)}
.chips a:hover{border-color:var(--cyan-deep);color:var(--cyan-deep);text-decoration:none;transform:translateY(-1px)}
.chips a svg{width:14px;height:14px}

.badge{display:inline-block;font-family:var(--mono);font-size:10.5px;font-weight:700;padding:2px 9px;border-radius:999px;background:var(--paper-alt);color:var(--text-soft);margin-right:6px}
.note{font-size:12.5px;color:var(--text-soft);background:var(--orange-tint);border-left:3px solid var(--orange);padding:12px 16px;border-radius:0 8px 8px 0}
.note.safe{background:var(--cyan-tint);border-left-color:var(--cyan-deep)}

/* time index on news.html */
.time-index{max-width:var(--measure);margin:0 auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);overflow:hidden;box-shadow:var(--shadow-sm)}
.time-index a{display:flex;gap:16px;align-items:baseline;padding:13px 18px;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--text)}
.time-index a:last-child{border-bottom:none}
.time-index a:hover{background:var(--paper-alt);text-decoration:none}
.time-index .ti-date{font-family:var(--mono);font-size:12px;color:var(--cyan-deep);font-weight:700;flex:none;width:92px}
.time-index .ti-cat{flex:none;font-size:11px;color:var(--text-faint);width:88px}

footer.gf{background:var(--graphite);color:#9aa0a8;padding:36px 0 20px;font-size:13px;position:relative}
footer.gf::before{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--cyan) 0 40%,var(--violet) 40% 75%,var(--orange) 75% 100%)}
footer.gf .fgrid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:22px;margin:24px 0 22px}
footer.gf h4{color:#fff;font-size:13.5px;margin:0 0 12px;letter-spacing:.5px}
footer.gf ul{list-style:none;margin:0;padding:0}
footer.gf li{margin-bottom:7px}
footer.gf a{color:#9aa0a8}
footer.gf a:hover{color:#fff}
.fbottom{border-top:1px solid var(--line-dark);padding-top:16px;font-size:12px;color:#6b7178;display:flex;flex-wrap:wrap;gap:6px 18px}
@media(max-width:760px){footer.gf .fgrid{grid-template-columns:repeat(2,1fr)}}