/* TechRunbook Article V7 - Issue / Solution / Recommendations */
.tr7{--ink:#171044;--muted:#60709a;--line:#e3e7ef;--blue:#1768d8;--violet:#5b50f0;--bg:#f7f8fd;font-family:inherit;color:#26345b}
.tr7 *{box-sizing:border-box}
.tr7 .container{width:min(1180px,calc(100% - 40px));margin:auto}
.tr7 .crumbs{padding:16px 0;color:#75809d;font-size:13px}
.tr7 .crumbs a{color:#5266e8;text-decoration:none}
.tr7 .crumbs .sep{margin:0 8px;color:#b1b7c8}
.tr7 .hero{background:linear-gradient(135deg,#f8f8ff 0%,#f1f3fb 100%);border-top:1px solid #eceef6;border-bottom:1px solid #e2e6f0}
.tr7 .hero-inner{padding:58px 0 48px}
.tr7 .category{color:#5b50f0;font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;margin-bottom:15px}
.tr7 h1{margin:0;max-width:1000px;color:var(--ink);font-size:clamp(40px,5vw,64px);line-height:1.04;letter-spacing:-.045em;font-weight:800}
.tr7 .lead{max-width:900px;margin:20px 0 0;color:var(--muted);font-size:18px;line-height:1.75}
.tr7 .badges{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px}
.tr7 .badge{padding:8px 14px;border:1px solid #dbe1ed;background:#fff;border-radius:999px;color:#33436e;font-size:12px;font-weight:700}
.tr7 .main{padding:44px 0 80px}
.tr7 .summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:36px}
.tr7 .summary-card{padding:23px 24px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 8px 25px rgba(23,16,68,.055)}
.tr7 .summary-label{display:flex;align-items:center;gap:9px;margin-bottom:12px;color:var(--ink);font-size:17px;font-weight:800}
.tr7 .summary-icon{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:8px;background:#eef1ff;color:var(--violet);font-size:13px;font-weight:900}
.tr7 .summary-card p{margin:0;color:#52617f;font-size:14px;line-height:1.75}
.tr7 .layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:38px;align-items:start}
.tr7 .content{min-width:0}
.tr7 .intro{margin-bottom:22px;padding:22px 25px;border:1px solid #dfe5ef;border-radius:15px;background:#fbfcff;color:#435477;font-size:16px;line-height:1.8}
.tr7 .section{position:relative;margin-bottom:20px;padding:28px 30px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 7px 20px rgba(23,16,68,.045)}
.tr7 .section-head{display:flex;gap:13px;align-items:flex-start;margin-bottom:14px}
.tr7 .num{flex:0 0 36px;width:36px;height:36px;border-radius:9px;background:#eef0ff;color:#574ce9;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:900}
.tr7 h2{margin:2px 0 0;color:var(--ink);font-size:26px;line-height:1.28;letter-spacing:-.025em}
.tr7 h3{margin:22px 0 9px;color:#21164d;font-size:19px}
.tr7 p{margin:0 0 13px;color:#425477;font-size:15.5px;line-height:1.8}
.tr7 ul,.tr7 ol{margin:10px 0 15px;padding-left:24px}
.tr7 li{margin:5px 0;color:#425477;line-height:1.7;font-size:15px}
.tr7 pre{overflow:auto;margin:18px 0;padding:18px 20px;border-radius:12px;background:#101629;color:#edf1ff;font:13px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace}
.tr7 code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.tr7 p code,.tr7 li code{padding:2px 5px;border-radius:5px;background:#f0f2f8;color:#40366f}
.tr7 blockquote{margin:18px 0;padding:14px 18px;border-left:4px solid #6256ef;background:#f7f7fc;color:#52617f}
.tr7 .sidebar{position:sticky;top:22px}
.tr7 .side-card{margin-bottom:15px;padding:19px;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:0 7px 20px rgba(23,16,68,.045)}
.tr7 .side-card h3{margin:0 0 12px;color:var(--ink);font-size:16px}
.tr7 .toc{list-style:none;margin:0;padding:0}
.tr7 .toc a{display:block;padding:7px 0;border-bottom:1px solid #f0f2f6;color:#596787;text-decoration:none;font-size:13px;line-height:1.45}
.tr7 .toc li:last-child a{border-bottom:0}
.tr7 .flow{list-style:none;margin:0;padding:0}
.tr7 .flow li{display:flex;gap:9px;margin:9px 0;color:#596787;font-size:13px;line-height:1.5}
.tr7 .flow-num{flex:0 0 25px;width:25px;height:25px;border-radius:7px;background:#eef5ff;color:#1768d8;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:900}
.tr7 .cta{margin-top:24px;padding:28px 30px;border-radius:16px;background:#122f67;color:#fff}
.tr7 .cta h2{color:#fff;margin:0 0 8px;font-size:23px}
.tr7 .cta p{color:#e8f0ff;margin:0 0 15px}
.tr7 .cta a{display:inline-flex;padding:10px 15px;background:#fff;color:#16356f;border-radius:8px;text-decoration:none;font-weight:800;font-size:13px}
@media(max-width:900px){.tr7 .summary{grid-template-columns:1fr}.tr7 .layout{grid-template-columns:1fr}.tr7 .sidebar{position:static;order:-1}}
@media(max-width:640px){.tr7 .container{width:calc(100% - 24px)}.tr7 .hero-inner{padding:38px 0}.tr7 h1{font-size:40px}.tr7 .lead{font-size:16px}.tr7 .main{padding:30px 0 55px}.tr7 .section{padding:22px 20px}.tr7 h2{font-size:23px}}