/* ============ RTC 专题中心 样式（延续调研中心暗色体系） ============ */
:root{
  --bg:#0f172a; --bg2:#1e293b; --card:#1e293b; --card2:#273449;
  --border:#334155; --text:#e2e8f0; --muted:#94a3b8;
  --accent:#38bdf8; --accent2:#34d399; --warn:#f59e0b; --danger:#f87171;
  --purple:#a78bfa;
  --radius:12px; --topbar-h:64px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",Roboto,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.65}

/* 顶栏 */
.topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-h);display:flex;align-items:center;gap:14px;padding:0 18px;background:rgba(15,23,42,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:50}
.brand{display:flex;align-items:center;gap:10px;min-width:0;text-decoration:none;color:var(--text)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--purple));color:#0f172a;font-weight:800;font-size:13px;flex-shrink:0}
.brand-text h1{font-size:16px;font-weight:700;white-space:nowrap}
.brand-text p{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.search-wrap{margin-left:auto;display:flex;align-items:center;gap:8px;flex:1;max-width:420px}
#searchInput{flex:1;background:var(--bg2);border:1px solid var(--border);border-radius:20px;padding:8px 16px;color:var(--text);font-size:13px;outline:none;min-width:0}
#searchInput:focus{border-color:var(--accent)}
.search-count{font-size:12px;color:var(--muted);white-space:nowrap}
.top-link{margin-left:auto;color:var(--muted);font-size:13px;text-decoration:none;white-space:nowrap}
.top-link:hover{color:var(--accent)}

/* 主体 */
.main{max-width:1080px;margin:0 auto;padding:calc(var(--topbar-h) + 26px) 24px 60px}

/* 统计卡片 */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-align:center}
.stat-card .num{font-size:30px;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-card .lbl{font-size:12px;color:var(--muted);margin-top:4px}

/* 分类快捷跳转 */
.cat-nav{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.cat-pill{display:inline-flex;align-items:center;gap:7px;background:var(--card);border:1px solid var(--border);border-radius:20px;padding:7px 16px;font-size:13px;color:var(--text);text-decoration:none;transition:all .15s}
.cat-pill:hover{border-color:var(--accent);transform:translateY(-1px)}
.cat-pill .ci{font-size:15px}
.cat-pill .cn{font-size:11px;color:var(--accent);background:rgba(56,189,248,.13);border-radius:9px;padding:0 7px;font-weight:700}

/* 分组区块 */
.group{margin-bottom:34px;scroll-margin-top:calc(var(--topbar-h) + 14px)}
.group-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.group-head .g-icon{font-size:24px;line-height:1.3}
.group-head h2{font-size:17px;font-weight:700}
.group-head .g-count{font-size:12px;color:var(--muted);font-weight:400;margin-left:10px}
.group-head .g-desc{font-size:12.5px;color:var(--muted)}

/* 分类配色：左侧色带区分 */
#cat-infra .report-card{border-left:3px solid var(--accent)}
#cat-vendor .report-card{border-left:3px solid var(--warn)}
#cat-selfdev .report-card{border-left:3px solid var(--purple)}
#cat-infra .group-head h2{color:var(--accent)}
#cat-vendor .group-head h2{color:var(--warn)}
#cat-selfdev .group-head h2{color:var(--purple)}

/* 报告卡片 */
.report-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px}
.report-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-decoration:none;color:var(--text);display:block;transition:all .15s}
.report-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.report-card .r-title{font-size:15.5px;font-weight:700;margin-bottom:6px}
.report-card .r-summary{font-size:13px;color:var(--muted);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.report-card .r-meta{font-size:11.5px;color:var(--accent2)}
.empty-tip{color:var(--muted);font-size:14px;padding:30px 0;text-align:center}

/* ===== 专题详情页 ===== */
.report-main{max-width:960px}
.report-hero{margin-bottom:22px}
.report-hero .r-cat{font-size:12px;padding:3px 12px;border-radius:10px;background:rgba(56,189,248,.15);color:var(--accent)}
.report-hero h1{font-size:26px;font-weight:800;margin:10px 0 6px}
.report-hero .meta{font-size:12.5px;color:var(--muted)}

/* 页内目录 */
.toc{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;margin-bottom:24px;font-size:13.5px}
.toc b{color:var(--accent)}
.toc a{color:var(--muted);text-decoration:none;margin-right:14px;line-height:2}
.toc a:hover{color:var(--accent)}

/* 章节 */
.report-section{margin-bottom:34px;scroll-margin-top:calc(var(--topbar-h) + 14px)}
.report-section h2{font-size:19px;font-weight:700;color:var(--accent);margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.report-section h3{font-size:15.5px;font-weight:700;margin:18px 0 10px;color:var(--text)}
.report-section p{font-size:14px;margin-bottom:10px}
.report-section li{font-size:14px;margin:6px 0 6px 22px}
.report-section b{color:var(--accent2)}
.report-section a{color:var(--accent);text-decoration:none}
.report-section a:hover{text-decoration:underline}

/* 结论卡片 */
.tldr-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px}
.tldr-card{background:var(--card);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius);padding:14px 16px}
.tldr-card .t-no{font-size:12px;color:var(--accent);font-weight:700;margin-bottom:4px}
.tldr-card .t-body{font-size:13.5px}

/* 表格 */
.table-wrap{overflow-x:auto;margin:12px 0}
table.data{width:100%;border-collapse:collapse;font-size:13px;background:var(--card);border-radius:var(--radius);overflow:hidden}
table.data th{background:var(--card2);color:var(--accent);text-align:left;padding:9px 12px;border:1px solid var(--border);white-space:nowrap}
table.data td{padding:9px 12px;border:1px solid var(--border);vertical-align:top}
table.data tr:hover td{background:rgba(56,189,248,.05)}
.tag-good{color:var(--accent2);font-weight:700}
.tag-warn{color:var(--warn);font-weight:700}
.tag-bad{color:var(--danger);font-weight:700}
.stars{color:var(--warn);letter-spacing:1px}

/* 图表 */
.chart-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin:14px 0}
.chart-card h3{font-size:14px;margin:0 0 12px;color:var(--text)}
.chart-box{position:relative;height:300px}
.chart-note{font-size:11.5px;color:var(--muted);margin-top:10px}

/* 提示块 */
.callout{background:rgba(245,158,11,.08);border:1px solid rgba(245,158,11,.35);border-left:4px solid var(--warn);border-radius:var(--radius);padding:12px 16px;margin:14px 0;font-size:13.5px}
.callout.info{background:rgba(56,189,248,.07);border-color:rgba(56,189,248,.35);border-left-color:var(--accent)}

/* 落地路线图（阶段步骤） */
.roadmap{margin:14px 0}
.phase{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--border)}
.phase:last-child{border-bottom:none}
.phase .p-badge{flex-shrink:0;width:52px;height:52px;border-radius:12px;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.4);color:var(--accent);font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}
.phase .p-body h4{font-size:14.5px;font-weight:700;margin-bottom:4px}
.phase .p-body p{font-size:13px;color:var(--muted);margin-bottom:0}

/* 难度徽章 */
.diff{display:inline-block;font-size:11px;font-weight:700;border-radius:8px;padding:1px 8px;white-space:nowrap}
.diff.d1{background:rgba(52,211,153,.15);color:var(--accent2)}
.diff.d2{background:rgba(245,158,11,.15);color:var(--warn)}
.diff.d3{background:rgba(248,113,113,.15);color:var(--danger)}

/* 来源列表 */
.source-list{list-style:none}
.source-list li{margin:7px 0;font-size:13px;padding-left:0;margin-left:0}
.source-list .s-tag{display:inline-block;font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:8px;padding:0 8px;margin-right:8px}

/* 返回顶部/返回列表 */
.back-bar{margin-top:36px;padding-top:16px;border-top:1px solid var(--border);font-size:13.5px}
.back-bar a{color:var(--accent);text-decoration:none;margin-right:18px}

.footer{max-width:1080px;margin:0 auto;padding:0 24px 30px;font-size:11.5px;color:var(--muted)}

@media (max-width:640px){
  .brand-text p{display:none}
  .search-wrap{max-width:200px}
  .report-hero h1{font-size:21px}
  .chart-box{height:240px}
  .report-grid{grid-template-columns:1fr}
  .main{padding-left:14px;padding-right:14px}
  .cat-pill{padding:6px 12px;font-size:12px}
  .phase .p-badge{width:44px;height:44px;font-size:12px}
}

/* ===== 2026 Collection Console redesign：仅作用于入口页 ===== */
.collection-page{--hub-accent:#69e7dd;--hub-accent2:#68a9ff;--hub-glow:rgba(105,231,221,.14);min-height:100vh;background:radial-gradient(circle at 18% -8%,var(--hub-glow),transparent 31rem),radial-gradient(circle at 88% 13%,rgba(104,169,255,.1),transparent 34rem),#07101d;color:#eef5ff}
.collection-page.research-page{--hub-accent:#68a9ff;--hub-accent2:#a88bff;--hub-glow:rgba(67,115,203,.18)}
.collection-page.rtc-page{--hub-accent:#66d9e8;--hub-accent2:#68a9ff;--hub-glow:rgba(39,148,174,.18)}
.collection-page.practice-page{--hub-accent:#f4bd6a;--hub-accent2:#69e7dd;--hub-glow:rgba(194,125,43,.16)}
.collection-page *{box-sizing:border-box}
.collection-page .topbar{position:sticky;top:0;height:72px;display:flex;align-items:center;gap:14px;padding:0 clamp(14px,3vw,38px);background:rgba(7,16,29,.86);border-bottom:1px solid color-mix(in srgb,var(--hub-accent) 18%,#24374e);backdrop-filter:blur(18px);z-index:50}
.collection-page .topbar::after{content:"";position:absolute;inset:auto 0 -1px;height:1px;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--hub-accent) 40%,transparent),transparent)}
.collection-page .workspace-link{flex:none;color:#7489a2;font:700 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.15em;text-decoration:none;white-space:nowrap}
.collection-page .workspace-link:hover{color:var(--hub-accent)}
.collection-page .brand{display:flex;align-items:center;gap:10px;color:#eef5ff;text-decoration:none}
.collection-page .brand-mark{display:grid;place-items:center;width:40px;height:40px;border:1px solid color-mix(in srgb,var(--hub-accent) 55%,#24374e);border-radius:12px;background:color-mix(in srgb,var(--hub-accent) 11%,#0e1d30);color:var(--hub-accent);font:800 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.08em}
.collection-page .brand-text h1{font-size:14px}.collection-page .brand-text p{color:#7f93ab;font-size:9px;letter-spacing:.08em;text-transform:uppercase}
.collection-page .search-wrap{margin-left:auto;display:flex;align-items:center;gap:10px;width:min(430px,42vw);max-width:none}
.collection-page .search-wrap input{width:100%;min-width:0;padding:10px 14px;border:1px solid #24374e;border-radius:13px;background:rgba(14,29,48,.8);color:#eef5ff;font-size:12px}
.collection-page .search-wrap input::placeholder{color:#6f829a}.collection-page .search-wrap input:focus{outline:none;border-color:color-mix(in srgb,var(--hub-accent) 62%,#24374e)}
.collection-page .search-count{color:var(--hub-accent);font:600 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:nowrap}
.collection-page .main{width:min(100%,1240px);max-width:1240px;margin:0 auto;padding:0 clamp(16px,4vw,52px) 60px}
.collection-page .collection-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;align-items:end;padding:clamp(46px,7vw,92px) 0 clamp(42px,6vw,74px)}
.collection-page .eyebrow{margin-bottom:17px;color:var(--hub-accent);font:700 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.2em;text-transform:uppercase}
.collection-page .collection-hero h2{max-width:780px;margin:0;color:#f1f6ff;font-size:clamp(42px,6vw,76px);line-height:1.01;letter-spacing:-.055em}
.collection-page .collection-hero h2 span{background:linear-gradient(90deg,var(--hub-accent),var(--hub-accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.collection-page .collection-hero p:not(.eyebrow){max-width:670px;margin:22px 0 0;color:#a2b4c8;font-size:clamp(14px,1.35vw,17px);line-height:1.75}
.collection-page .hero-index{min-width:150px;padding:17px 18px;border:1px solid #24374e;border-radius:15px;background:linear-gradient(145deg,rgba(18,36,58,.82),rgba(10,23,39,.88));box-shadow:0 24px 70px rgba(0,0,0,.2)}
.collection-page .hero-index span,.collection-page .hero-index small{display:block;color:#7489a2;font:700 9px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.15em;text-transform:uppercase}.collection-page .hero-index b{display:block;margin:11px 0 5px;color:var(--hub-accent);font-size:26px;letter-spacing:-.04em}
.collection-page .stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:0 0 26px}
.collection-page .stat-card{position:relative;min-height:108px;padding:19px;border:1px solid #24374e;border-radius:15px;background:linear-gradient(145deg,rgba(18,36,58,.88),rgba(10,23,39,.92));text-align:left;overflow:hidden}
.collection-page .stat-card::before{content:"";position:absolute;inset:0 auto 0 0;width:2px;background:linear-gradient(var(--hub-accent),transparent)}
.collection-page .stat-card .num{color:#f3f7ff;font-size:31px;font-weight:780;letter-spacing:-.045em}.collection-page .stat-card .lbl{margin-top:8px;color:#8194ac;font-size:10px;letter-spacing:.08em;text-transform:uppercase}
.collection-page .intro{margin:0 0 22px;padding:17px 20px;border:1px solid #24374e;border-radius:14px;background:rgba(13,28,47,.72);color:#aebfd0;font-size:12px;line-height:1.8}.collection-page .intro b{color:#f2f6ff}.collection-page .intro a{color:var(--hub-accent)}
.collection-page .cat-nav{display:flex;gap:8px;margin:0 0 42px;padding:0 0 16px;border-bottom:1px solid #24374e;overflow-x:auto;scrollbar-width:none}.collection-page .cat-nav::-webkit-scrollbar{display:none}
.collection-page .cat-pill{display:inline-flex;align-items:center;gap:7px;flex:none;padding:7px 12px;border:1px solid #24374e;border-radius:999px;background:rgba(13,28,47,.72);color:#91a4bb;font-size:10px;text-decoration:none;transition:.18s}.collection-page .cat-pill:hover{border-color:color-mix(in srgb,var(--hub-accent) 58%,#24374e);color:#eef5ff}.collection-page .cat-pill .ci{filter:grayscale(.3);font-size:12px}.collection-page .cat-pill .cn{display:grid;place-items:center;min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:color-mix(in srgb,var(--hub-accent) 10%,#102138);color:var(--hub-accent);font:700 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace}
.collection-page .group{margin-bottom:48px;scroll-margin-top:90px}.collection-page .group-head{display:grid;grid-template-columns:42px 1fr;gap:13px;align-items:start;margin-bottom:15px}.collection-page .g-icon{display:grid;place-items:center;width:40px;height:40px;border:1px solid #24374e;border-radius:12px;background:#0d1b2d;font-size:16px}.collection-page .group-head h2{color:#eef5ff;font-size:18px}.collection-page .g-count{margin-left:10px;color:var(--hub-accent);font:700 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.06em}.collection-page .g-desc{margin-top:4px;color:#7f93aa;font-size:11px}
.collection-page .report-grid,.collection-page .practice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.collection-page .report-card,.collection-page .practice-card{position:relative;display:flex;flex-direction:column;min-height:176px;padding:18px;border:1px solid #24374e;border-radius:16px;background:linear-gradient(150deg,rgba(16,33,54,.94),rgba(10,23,39,.96));color:#eef5ff;text-decoration:none;box-shadow:0 18px 48px rgba(0,0,0,.1);transition:transform .18s,border-color .18s,background .18s;overflow:hidden}
.collection-page .report-card::after,.collection-page .practice-card::after{content:"↗";position:absolute;right:15px;bottom:13px;color:var(--hub-accent);font-size:13px}
.collection-page .report-card:hover,.collection-page .practice-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--hub-accent) 55%,#24374e);background:linear-gradient(150deg,color-mix(in srgb,var(--hub-accent) 7%,#102136),#0b192a)}
.collection-page .r-title,.collection-page .p-title{padding-right:18px;color:#f3f7ff;font-size:14px;font-weight:700;line-height:1.45}.collection-page .r-summary,.collection-page .p-summary{flex:1;margin-top:10px;color:#9fb1c5;font-size:11px;line-height:1.7}.collection-page .r-meta{margin-top:15px;padding-top:11px;border-top:1px solid #20344a;color:#71849b;font:9px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace}
.collection-page .p-meta{display:flex;flex-wrap:wrap;gap:5px;margin-top:14px;padding-top:11px;border-top:1px solid #20344a}.collection-page .p-meta span{padding:3px 7px;border-radius:999px;background:#0a1727;color:#7589a1;font-size:9px}.collection-page .p-badge{display:inline-flex;margin-left:6px;padding:3px 7px;border-radius:999px;font-size:8px;vertical-align:2px}.collection-page .badge-real{background:rgba(105,231,221,.1);color:#69e7dd}.collection-page .badge-mock{background:rgba(244,189,106,.1);color:#f4bd6a}
.collection-page .empty-tip{color:#7d90a6;font-size:12px}.collection-page .empty-tip:empty{display:none}
.collection-page .footer{display:flex;align-items:center;gap:18px;max-width:1240px;margin:0 auto;padding:20px clamp(16px,4vw,52px) 34px;border-top:1px solid #24374e;color:#72869e;font-size:10px}.collection-page .footer b{color:#dce7f3}.collection-page .footer a{margin-left:auto;color:var(--hub-accent);text-decoration:none}
.collection-page :focus-visible{outline:2px solid var(--hub-accent);outline-offset:3px}
@supports(content-visibility:auto){.collection-page .group{content-visibility:auto;contain-intrinsic-size:auto 520px}}
@media(max-width:980px){.collection-page .report-grid,.collection-page .practice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.collection-page .collection-hero{grid-template-columns:1fr}.collection-page .hero-index{width:max-content}.collection-page .workspace-link{display:none}}
@media(max-width:680px){.collection-page .topbar{height:auto;min-height:68px;gap:9px;padding:9px 11px}.collection-page .brand-mark{width:36px;height:36px}.collection-page .brand-text p{display:none}.collection-page .search-wrap{width:auto;flex:1}.collection-page .search-count{display:none}.collection-page .main{padding-left:12px;padding-right:12px}.collection-page .collection-hero{padding:38px 0 48px}.collection-page .collection-hero h2{font-size:clamp(38px,13vw,55px)}.collection-page .collection-hero p:not(.eyebrow){font-size:13px}.collection-page .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.collection-page .report-grid,.collection-page .practice-grid{grid-template-columns:1fr}.collection-page .report-card,.collection-page .practice-card{min-height:155px}.collection-page .footer{align-items:flex-start;flex-wrap:wrap}.collection-page .footer a{width:100%;margin-left:0}}
@media(prefers-reduced-motion:reduce){.collection-page *,.collection-page *::before,.collection-page *::after{animation:none!important;transition:none!important}}