:root{
  --blue:#0877f2; --blue-d:#075ec1; --blue-2:#39a0ff; --blue-l:#edf6ff; --ink:#111827; --muted:#6b7280;
  --line:#e6eaf0; --bg:#f3f6fb; --card:#fff; --green:#20b85a; --green-bg:#eaf9f0;
  --amber:#f59e0b; --amber-bg:#fff7e8; --gray-bg:#f2f4f7; --shadow:0 18px 46px rgba(17,24,39,.08);
  --btn-shadow:0 12px 26px rgba(8,119,242,.24);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{margin:0;background:
  radial-gradient(circle at 8% 18%,rgba(8,119,242,.09),transparent 28%),
  radial-gradient(circle at 92% 8%,rgba(57,160,255,.12),transparent 26%),
  linear-gradient(180deg,#f8fbff 0,#eef4fb 44%,#f3f6fb 100%);
  color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
.top{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(203,213,225,.72);box-shadow:0 1px 0 rgba(255,255,255,.7) inset,0 10px 32px rgba(15,23,42,.045)}
.nav{max-width:1180px;margin:0 auto;height:74px;padding:0 22px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand img{width:50px;height:50px;object-fit:contain;filter:drop-shadow(0 8px 16px rgba(8,119,242,.15))}
.brand b{font-weight:950;letter-spacing:-.5px;color:#0b5ed7}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:8px}
.nav-link{height:38px;padding:0 13px;border-radius:999px;color:var(--muted);font-size:14px;font-weight:700;display:inline-flex;align-items:center}
.nav-link:hover{background:var(--gray-bg);color:var(--ink)}
.btn{min-height:44px;padding:0 18px;border:0;border-radius:16px;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;font-weight:850;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.16s ease;white-space:nowrap;line-height:1.1;text-align:center;box-shadow:var(--btn-shadow)}
.btn:hover{background:linear-gradient(135deg,var(--blue-d),var(--blue));transform:translateY(-1px);box-shadow:0 16px 32px rgba(8,119,242,.28)}
.btn:active{transform:translateY(0);box-shadow:0 8px 18px rgba(8,119,242,.2)}
.btn:focus-visible,.nav-link:focus-visible,.cat:focus-visible,.pg:focus-visible{outline:3px solid rgba(8,119,242,.18);outline-offset:3px}
.btn.ghost{background:#fff;color:var(--blue);border:1px solid #cfe0f5;box-shadow:0 8px 22px rgba(15,23,42,.04)}
.btn.ghost:hover{background:var(--blue-l)}
.nav .btn{min-height:40px;height:40px;padding:0 17px;border-radius:999px;font-size:14px}
.hero{max-width:1180px;margin:0 auto;padding:70px 22px 18px;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:end}
.crumbs{font-size:13px;color:var(--muted);font-weight:700;margin-bottom:14px}
.crumbs b{color:var(--blue)}
h1{font-size:clamp(29px,4vw,48px);line-height:1.02;letter-spacing:-1.4px;margin:0;max-width:780px}
h1 span{color:var(--blue)}
.lead{max-width:730px;margin:14px 0 0;color:#506176;font-size:16px;line-height:1.6}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.hero-actions .btn{height:50px;padding:0 20px;border-radius:16px}
.live{display:inline-flex;align-items:center;gap:9px;margin-top:18px;height:34px;padding:0 14px;border-radius:999px;background:var(--green-bg);color:#137a32;font-size:13px;font-weight:850}
.live i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(32,184,90,.48);animation:pulse 1.8s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(32,184,90,0)}}
.hero-card{background:rgba(255,255,255,.9);border:1px solid rgba(214,222,235,.92);border-radius:24px;padding:21px;box-shadow:0 24px 70px rgba(15,23,42,.08)}
.hero-card h3{margin:0 0 12px;font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.hc-row{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:#465469}
.hc-row:last-child{border-bottom:0}
.hc-row b{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:900}
.hc-row b.green{color:#137a32}
.filters{max-width:1180px;margin:0 auto;padding:12px 22px 0}
.filter-card{background:rgba(255,255,255,.92);border:1px solid rgba(214,222,235,.92);border-radius:24px;padding:14px;box-shadow:0 18px 44px rgba(15,23,42,.07)}
.filter-grid{display:grid;grid-template-columns:minmax(220px,1.25fr) minmax(160px,.82fr) minmax(150px,.72fr) minmax(135px,.65fr) minmax(175px,.85fr) auto;gap:10px;align-items:end}
.fg label{display:block;margin:0 0 6px;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.inp,.sel{width:100%;height:44px;border:1.5px solid #dfe5ee;border-radius:14px;background:#f8fafc;padding:0 12px;color:var(--ink);outline:none;box-shadow:0 1px 0 rgba(255,255,255,.75) inset}
.inp:focus,.sel:focus{background:#fff;border-color:var(--blue);box-shadow:0 0 0 3px rgba(8,119,242,.12)}
.filter-grid .btn{height:44px;min-width:126px;padding:0 16px}
.catbar{max-width:1180px;margin:0 auto;padding:14px 22px 0;display:flex;gap:9px;flex-wrap:wrap;overflow:visible}
.catbar::-webkit-scrollbar{height:8px}
.catbar::-webkit-scrollbar-thumb{background:#c9d7e8;border-radius:999px}
.cat{flex:0 0 auto;height:38px;padding:0 15px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:#526173;font-size:13px;font-weight:850;cursor:pointer;box-shadow:0 8px 18px rgba(15,23,42,.035);transition:.16s ease}
.cat:hover{border-color:#c8dcf5;color:var(--blue);transform:translateY(-1px)}
.cat.on{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(8,119,242,.22)}
.cat small{opacity:.65;margin-left:4px}
.layout{max-width:1180px;margin:0 auto;padding:16px 22px 64px;display:grid;grid-template-columns:minmax(0,1fr);gap:20px;align-items:start}
.pinned{background:linear-gradient(115deg,#075ec1,#0877f2 58%,#48a2ff);color:#fff;border-radius:24px;padding:20px 22px;margin-bottom:16px;display:flex;align-items:center;gap:14px;box-shadow:0 22px 54px rgba(8,119,242,.28);overflow:hidden;position:relative}
.pinned:after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 42%,rgba(255,255,255,.18) 50%,transparent 58%);transform:translateX(-120%);animation:sweep 4s ease-in-out infinite}
@keyframes sweep{65%,100%{transform:translateX(120%)}}
.pin-badge{width:42px;height:42px;border-radius:14px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.pin-badge:before{content:"";width:18px;height:18px;border-radius:6px;border:3px solid #fff}
.pinned b{display:block;font-size:16px;letter-spacing:-.2px}
.pinned span{display:block;margin-top:3px;color:rgba(255,255,255,.86);font-size:13px;line-height:1.4}
.pinned .btn{margin-left:auto;background:#fff;color:var(--blue);height:44px;padding:0 18px;position:relative;z-index:1;box-shadow:0 12px 28px rgba(15,23,42,.14)}
.threads{display:grid;gap:10px}
.thread{display:grid;grid-template-columns:46px minmax(0,1fr) auto;gap:14px;background:rgba(255,255,255,.96);border:1px solid rgba(214,222,235,.9);border-radius:20px;padding:16px;box-shadow:0 8px 26px rgba(17,24,39,.04);cursor:pointer;transition:.16s ease}
.thread:hover{border-color:#c8dcf5;box-shadow:0 14px 36px rgba(8,119,242,.09);transform:translateY(-1px)}
.ava{width:46px;height:46px;border-radius:15px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:14px;background:linear-gradient(135deg,#0877f2,#65b0ff)}
.thread:nth-child(6n+2) .ava{background:linear-gradient(135deg,#20b85a,#76dfa1)}
.thread:nth-child(6n+3) .ava{background:linear-gradient(135deg,#f59e0b,#ffd166)}
.thread:nth-child(6n+4) .ava{background:linear-gradient(135deg,#8b5cf6,#bba7ff)}
.thread:nth-child(6n+5) .ava{background:linear-gradient(135deg,#ef4444,#ff9b9b)}
.thread:nth-child(6n) .ava{background:linear-gradient(135deg,#0891b2,#67e8f9)}
.th-title{display:inline-block;font-size:16px;font-weight:900;letter-spacing:-.25px;line-height:1.3;color:var(--ink)}
.thread:hover .th-title{color:var(--blue)}
.th-sub{margin-top:4px;font-size:12.5px;color:var(--muted);font-weight:700}
.th-text{margin-top:10px;color:#435169;line-height:1.58;font-size:14px}
.meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:13px;padding-top:12px;border-top:1px dashed var(--line)}
.chip{height:26px;display:inline-flex;align-items:center;border-radius:999px;padding:0 10px;font-size:11.5px;font-weight:900;background:var(--blue-l);color:var(--blue)}
.chip.gray{background:var(--gray-bg);color:#64748b}
.chip.green{background:var(--green-bg);color:#137a32}
.chip.amber{background:var(--amber-bg);color:#a16207}
.price{text-align:right;min-width:116px}
.price b{display:block;font-size:17px;color:var(--blue);font-weight:950;white-space:nowrap}
.price span{display:block;margin-top:4px;color:var(--muted);font-size:12px;font-weight:800}
.side{display:grid;gap:14px}
.side-card{background:rgba(255,255,255,.94);border:1px solid rgba(214,222,235,.92);border-radius:24px;padding:18px;box-shadow:0 14px 36px rgba(15,23,42,.055)}
.side-card h3{margin:0 0 13px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.side-row{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;color:#465469}
.side-row:last-child{border-bottom:0}
.side-row b{font-weight:950;color:var(--ink)}
.cta{background:linear-gradient(150deg,#075ec1,#0877f2 58%,#48a2ff);color:#fff}
.cta h3{color:rgba(255,255,255,.75)}
.cta b{display:block;font-size:18px;line-height:1.25;letter-spacing:-.25px}
.cta p{margin:9px 0 14px;color:rgba(255,255,255,.86);font-size:13px;line-height:1.55}
.cta .btn{width:100%;height:46px;background:#fff;color:var(--blue);box-shadow:0 14px 30px rgba(15,23,42,.14)}
.pager{display:flex;gap:6px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:20px}
.pg{min-width:38px;height:38px;border:1.5px solid var(--line);background:#fff;border-radius:12px;color:#526173;font-weight:900;cursor:pointer;transition:.16s ease}
.pg:not(:disabled):hover{border-color:#c8dcf5;color:var(--blue);transform:translateY(-1px)}
.pg.on{background:var(--blue);border-color:var(--blue);color:#fff}
.pg:disabled{opacity:.45;cursor:default}
.empty,.loading{background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);border-radius:20px;padding:38px;text-align:center;color:var(--muted);font-weight:750;box-shadow:0 10px 30px rgba(15,23,42,.045)}
.empty-title{display:block;color:var(--ink);font-size:17px;font-weight:950;letter-spacing:-.25px;margin-bottom:6px}
.empty-sub{display:block;color:var(--muted);font-size:13px;line-height:1.55;font-weight:700;margin-bottom:16px}
.empty .btn{height:40px;min-height:40px;padding:0 16px;font-size:14px;box-shadow:none}
.spin{width:24px;height:24px;border-radius:50%;border:3px solid #dfe5ee;border-top-color:var(--blue);display:inline-block;animation:spin .8s linear infinite;margin-bottom:10px}
@keyframes spin{to{transform:rotate(360deg)}}
.modal-ov{position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(4px);z-index:90;display:none;align-items:center;justify-content:center;padding:18px;overflow:auto}
.modal-ov.show{display:flex}
.modal{width:min(720px,100%);max-height:min(860px,92vh);overflow:auto;background:#fff;border-radius:26px;box-shadow:0 30px 90px rgba(0,0,0,.28)}
.modal-head{padding:22px 24px;border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}
.modal-head .ava{flex:0 0 50px;width:50px;height:50px}
.modal-title{font-size:20px;font-weight:950;letter-spacing:-.4px;line-height:1.25;padding-right:36px}
.modal-sub{margin-top:5px;color:var(--muted);font-size:13px;font-weight:750}
.modal-x{margin-left:auto;width:36px;height:36px;border:0;border-radius:50%;background:var(--gray-bg);font-weight:900;color:#6b7280;cursor:pointer;flex:0 0 auto}
.modal-body{padding:22px 24px}
.question-label{margin:0 0 8px;color:var(--muted);font-size:11px;font-weight:950;text-transform:uppercase;letter-spacing:.06em}
.question{background:#f6f8fb;border:1px solid var(--line);border-radius:18px;padding:17px;line-height:1.7;color:#334155;font-size:15px;white-space:pre-wrap;overflow-wrap:anywhere}
.mgrid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;margin-top:16px}
.mrow{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px}
.mrow span{color:var(--muted);font-weight:700}
.mrow b{text-align:right}
.modal-note{margin-top:16px;background:var(--blue-l);border:1px solid #cfe0f5;border-radius:16px;padding:14px;color:#0b5ed7;font-size:13px;line-height:1.55;font-weight:750}
.share-box{margin-top:14px;background:#f8fbff;border:1px solid var(--line);border-radius:18px;padding:12px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:end}
.share-box span{display:block;margin:0 0 6px;color:var(--muted);font-size:11px;font-weight:950;text-transform:uppercase;letter-spacing:.06em}
.share-box input{width:100%;height:42px;border:1.5px solid #dbe5f2;border-radius:13px;background:#fff;padding:0 12px;color:#263447;font:700 13px/1 var(--font);outline:none;box-shadow:inset 0 1px 0 rgba(15,23,42,.02)}
.share-box input:focus{border-color:#9cc8ff;box-shadow:0 0 0 4px rgba(10,126,242,.1)}
.share-actions{display:flex;gap:8px;align-items:center}
.share-box .btn{height:42px;min-height:42px;padding:0 14px;box-shadow:none;white-space:nowrap;border-radius:13px}
.share-box .btn.copied{background:#e9fbef;border-color:#c8f0d5;color:#0f8a3a}
.modal-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.modal-actions .btn{min-height:46px;padding:10px 18px;flex:1 1 230px;min-width:0;white-space:normal;line-height:1.15}
footer{max-width:1180px;margin:0 auto;padding:0 22px 44px;color:var(--muted);font-size:12px;line-height:1.7;text-align:center}
body.lock{overflow:hidden}
@media(max-width:980px){
  .hero{grid-template-columns:1fr}.hero-card{max-width:none}.layout{grid-template-columns:1fr}.side{grid-template-columns:1fr 1fr}.side .cta{grid-column:1/-1}
  .filter-grid{grid-template-columns:1fr 1fr 1fr}.filter-grid .btn{grid-column:auto}
}
@media(max-width:680px){
  .nav{height:62px;padding:0 14px}.brand b,.nav-link{display:none}.brand img{width:40px;height:40px}.nav-links{gap:6px}.nav .btn{height:38px;min-height:38px;padding:0 12px;font-size:13px}
  .hero,.filters,.catbar,.layout{padding-left:14px;padding-right:14px}
  .hero{padding-top:34px}.lead{font-size:14px}.hero-actions .btn{width:100%}
  .catbar{flex-wrap:nowrap;overflow:auto;scrollbar-width:none}.catbar::-webkit-scrollbar{display:none}
  .filter-grid{grid-template-columns:1fr}.side{grid-template-columns:1fr}.pinned{align-items:flex-start;flex-direction:column}.pinned .btn{width:100%;margin-left:0}
  .thread{grid-template-columns:minmax(0,1fr);padding:15px}.thread .ava{display:none}.price{text-align:left;min-width:0;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
  .mgrid{grid-template-columns:1fr}.modal-head,.modal-body{padding:18px}.modal-title{font-size:18px}
  .share-box{grid-template-columns:1fr}.share-actions{display:grid;grid-template-columns:1fr 1fr}.share-box .btn{width:100%}.modal-actions .btn{flex-basis:100%}
}
.case-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#f6f9ff,#eef5ff)}
.case-shell{width:min(620px,100%);background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px;text-align:center;box-shadow:var(--shadow)}
.case-logo{width:84px;height:84px;object-fit:contain;margin:0 auto 14px;display:block}
.case-shell h1{margin:0 0 12px;font-size:clamp(26px,4vw,42px);letter-spacing:-.05em}
.case-shell p{margin:0 auto 22px;max-width:520px;color:var(--muted);line-height:1.65}
.seo-detail{max-width:900px;margin:0 auto;padding:64px 22px}
.detail-card{background:rgba(255,255,255,.96);border:1px solid rgba(214,222,235,.92);border-radius:28px;box-shadow:0 24px 70px rgba(15,23,42,.08);overflow:hidden}
.detail-head{padding:24px 26px}
.detail-title{font-size:clamp(28px,4vw,44px);line-height:1.05;margin:0;letter-spacing:-.05em}
.detail-body{padding:24px 26px 28px}
@media(max-width:680px){
  .seo-detail{padding:32px 14px}.detail-head,.detail-body{padding:18px}.detail-card{border-radius:22px}
}