:root{--ink:#0f1930;--muted:#667085;--line:#dfe5ef;--soft:#f5f7fb;--blue:#1e5eff;--green:#0b9f6e;--orange:#ff7a00;--red:#d92d20;--shadow:0 18px 48px rgba(20,37,63,.09)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#f3f6fa;font-family:Inter,"Microsoft YaHei",system-ui,sans-serif}.ad-top-v91{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.ad-top-v91>div{max-width:1320px;margin:auto;min-height:68px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.ad-brand-v91{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink)}.ad-brand-v91 span{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#ff9700,#ff6500);color:#fff;font-weight:900}.ad-brand-v91 b{font-size:20px}.ad-top-v91 nav{display:flex;gap:22px}.ad-top-v91 nav a{color:#344054;text-decoration:none;font-weight:700;font-size:14px}.ad-shell-v91{max-width:1320px;margin:auto;padding:34px 24px 70px}.ad-hero-v91{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(300px,.7fr);gap:28px;padding:42px;border-radius:28px;background:radial-gradient(circle at 85% 0,rgba(69,111,255,.32),transparent 38%),linear-gradient(135deg,#101b35,#1d3776);color:#fff;box-shadow:0 24px 60px rgba(14,32,72,.2)}.eyebrow-v91{color:#9fc2ff;font-weight:900;letter-spacing:.06em}.ad-hero-v91 h1{font-size:clamp(32px,5vw,58px);line-height:1.08;margin:13px 0}.ad-hero-v91 p{color:#dce7ff;line-height:1.8;max-width:760px}.hero-tags-v91{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}.hero-tags-v91 span{border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:800}.ad-hero-v91 aside{align-self:stretch;padding:24px;border:1px solid rgba(255,255,255,.18);border-radius:20px;background:rgba(255,255,255,.08)}.ad-hero-v91 aside b{font-size:20px}.ad-hero-v91 aside strong{display:block;margin-top:18px;color:#ffd59f;font-size:13px;line-height:1.7}.ad-boundary-v91{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}.ad-boundary-v91 div{padding:17px 20px;background:#fff;border:1px solid var(--line);border-radius:16px}.ad-boundary-v91 b,.ad-boundary-v91 span{display:block}.ad-boundary-v91 span{margin-top:6px;color:var(--muted);font-size:13px;line-height:1.6}.ad-layout-v91{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(340px,.75fr);gap:20px;align-items:start}.ad-card-v91{margin-top:20px;padding:26px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.ad-layout-v91>.ad-card-v91{margin-top:0}.card-head-v91{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px}.card-head-v91>div{display:flex;align-items:center;gap:10px}.card-head-v91 span{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#e8efff;color:var(--blue);font-weight:900}.card-head-v91 h2{font-size:21px;margin:0}.card-head-v91 small{color:var(--muted)}.card-head-v91 em{font-style:normal;padding:7px 11px;border-radius:999px;background:#fff3e7;color:#b54708;font-weight:900}.card-head-v91 em.good{background:#e9fbf4;color:#087a55}.subsection-v91{margin-top:30px;padding-top:25px;border-top:1px solid var(--line)}.ad-grid-v91{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.ad-grid-v91 label{font-size:13px;font-weight:800;color:#344054}.ad-grid-v91 label small{display:block;color:#98a2b3;font-weight:500;margin:4px 0}.ad-grid-v91 input,.ad-grid-v91 select{width:100%;height:46px;margin-top:7px;padding:0 13px;border:1px solid #cfd7e6;border-radius:12px;background:#fff;color:var(--ink);font:inherit}.ad-grid-v91 input:focus,.ad-grid-v91 select:focus{outline:3px solid rgba(30,94,255,.14);border-color:var(--blue)}.wide-v91{grid-column:1/-1}.ad-form-actions-v91,.ad-result-actions-v91{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}button,.ad-form-actions-v91 a{appearance:none;border:1px solid #cfd7e6;background:#fff;color:var(--ink);border-radius:11px;padding:11px 16px;font-weight:900;cursor:pointer;text-decoration:none}.primary-v91{background:var(--blue);border-color:var(--blue);color:#fff}.ad-status-v91{min-height:23px;margin:14px 0 0;color:var(--muted);font-size:13px;line-height:1.65}.ad-status-v91.error{color:var(--red)}.ad-status-v91.success{color:var(--green)}.metric-grid-v91{display:grid;grid-template-columns:repeat(2,1fr);gap:11px}.metric-grid-v91 div{padding:16px;background:var(--soft);border:1px solid #e4e9f1;border-radius:14px}.metric-grid-v91 span,.metric-grid-v91 b{display:block}.metric-grid-v91 span{color:var(--muted);font-size:12px}.metric-grid-v91 b{font-size:20px;margin-top:5px}.metric-grid-v91 div:first-child,.metric-grid-v91 div:nth-child(2){background:linear-gradient(135deg,#eaf1ff,#f7f9ff);border-color:#bfd0ff}.ad-forecast-v91{margin-top:18px;padding:18px;border-radius:16px;background:#101b35;color:#fff}.ad-forecast-v91 h3{margin:0 0 14px}.ad-forecast-v91 dl{margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.ad-forecast-v91 dl div{padding:10px;border-radius:10px;background:rgba(255,255,255,.08)}.ad-forecast-v91 dt{color:#aebfe0;font-size:11px}.ad-forecast-v91 dd{margin:3px 0 0;font-weight:900}.scenario-grid-v91{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.scenario-grid-v91 article{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--soft)}.scenario-grid-v91 article.recommended{background:#eef4ff;border-color:#8cadff}.scenario-grid-v91 h3{margin:6px 0}.scenario-grid-v91 dl{display:grid;grid-template-columns:1fr auto;gap:8px;margin:15px 0 0}.scenario-grid-v91 dt{color:var(--muted)}.scenario-grid-v91 dd{margin:0;font-weight:900}.preflight-grid-v91{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.preflight-grid-v91 div{padding:16px;border-radius:14px;border:1px solid var(--line);background:var(--soft)}.preflight-grid-v91 b{display:block}.preflight-grid-v91 span{display:block;margin-top:5px;color:var(--muted);font-size:13px}.preflight-grid-v91 div.pass b{color:var(--green)}.preflight-grid-v91 div.warn b{color:#b54708}.platform-grid-v91{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.platform-grid-v91 article{display:grid;grid-template-columns:1fr auto;gap:10px;padding:18px;border:1px solid var(--line);border-radius:15px}.platform-grid-v91 h3,.platform-grid-v91 p{margin:0}.platform-grid-v91 p{margin-top:7px;color:var(--muted);font-size:13px;line-height:1.6}.platform-grid-v91 em{font-style:normal;color:#b54708;font-weight:900;font-size:12px}.platform-grid-v91 a{align-self:center;color:var(--blue);font-weight:800}.saved-plan-v91{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:16px 0;border-top:1px solid var(--line)}.saved-plan-v91:first-child{border-top:0}.saved-plan-v91 h3{margin:0}.saved-plan-v91 p{margin:6px 0;color:var(--muted);font-size:13px}.saved-plan-v91 .actions{display:flex;align-items:center;gap:8px}.saved-plan-v91 button{padding:8px 11px}.saved-plan-v91 .danger{color:var(--red)}.empty-v91{padding:24px;text-align:center;background:var(--soft);border-radius:15px;color:var(--muted)}.ad-guide-v91{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}.ad-guide-v91 article{padding:26px;border:1px solid var(--line);border-radius:20px;background:#fff}.ad-guide-v91 h2{margin-top:0}.ad-guide-v91 p{color:var(--muted);line-height:1.8}.ad-foot-v91{text-align:center;padding:26px;color:var(--muted);font-size:13px}@media(max-width:900px){.ad-hero-v91,.ad-layout-v91{grid-template-columns:1fr}.ad-boundary-v91,.scenario-grid-v91,.preflight-grid-v91{grid-template-columns:1fr}.platform-grid-v91{grid-template-columns:1fr}.ad-top-v91 nav{display:none}}@media(max-width:620px){.ad-shell-v91{padding:18px 12px 50px}.ad-top-v91>div{padding:0 14px}.ad-brand-v91{font-size:13px}.ad-hero-v91{padding:28px 20px;border-radius:20px}.ad-card-v91{padding:19px;border-radius:17px}.ad-grid-v91,.metric-grid-v91,.ad-guide-v91{grid-template-columns:1fr}.wide-v91{grid-column:auto}.saved-plan-v91{grid-template-columns:1fr}.saved-plan-v91 .actions{align-items:flex-start}.ad-form-actions-v91 button,.ad-result-actions-v91 button{width:100%}}