:root {
  --bg:       #f1f4f8;
  --surface:  #ffffff;
  --surf2:    #f8fafd;
  --border:   #e2e8f2;
  --border2:  #cdd5e0;
  --t1:       #0f172a;
  --t2:       #3d4f6a;
  --t3:       #8fa3be;
  --blue:     #2563eb;
  --blue-l:   #dbeafe;
  --blue-m:   #93c5fd;
  --teal:     #0891b2;
  --teal-l:   #cffafe;
  --indigo:   #4338ca;
  --indigo-l: #e0e7ff;
  --violet:   #7c3aed;
  --violet-l: #ede9fe;
  --green:    #059669;
  --green-l:  #d1fae5;
  --red:      #dc2626;
  --red-l:    #fee2e2;
  --orange:   #ea580c;
  --orange-l: #ffedd5;
  --yellow:   #d97706;
  --yellow-l: #fef3c7;
  --purple:   #9333ea;
  --purple-l: #f3e8ff;

  --sb:       #0c1628;
  --sb2:      #111e35;
  --sb-bdr:   rgba(255,255,255,.07);
  --sb-t:     #8faabe;
  --sb-th:    #e2ecf6;
  --sb-acc:   #38bdf8;
  --sb-w:     256px;

  --ff: -apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --r2: 8px; --r3: 12px; --r4: 16px;
  --sh1: 0 1px 3px rgba(0,0,0,.06),0 4px 12px rgba(0,0,0,.05);
  --sh2: 0 4px 8px rgba(0,0,0,.07),0 12px 32px rgba(0,0,0,.08);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--ff);background:var(--bg);color:var(--t1);line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
button{cursor:pointer;font-family:inherit}

.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--blue),var(--sb-acc));z-index:9999;transition:width .1s linear;border-radius:0 2px 2px 0}

.mob-bar{display:none;position:fixed;top:0;left:0;right:0;height:54px;background:var(--sb);align-items:center;justify-content:space-between;padding:0 16px;z-index:600;border-bottom:1px solid var(--sb-bdr)}
.mob-bar__logo{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--sb-acc)}
.mob-bar__btn{width:36px;height:36px;background:rgba(255,255,255,.06);border:1px solid var(--sb-bdr);border-radius:var(--r2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;transition:.25s}
.mob-bar__btn span{display:block;width:18px;height:1.5px;background:var(--sb-th);border-radius:2px;transition:.25s}
.mob-bar__btn.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.mob-bar__btn.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.mob-bar__btn.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.sidebar{position:fixed;left:0;top:0;width:var(--sb-w);height:100vh;background:var(--sb);display:flex;flex-direction:column;z-index:500;overflow:hidden}
.sidebar__brand{display:flex;align-items:center;gap:12px;padding:24px 20px 20px;border-bottom:1px solid var(--sb-bdr);flex-shrink:0}
.sidebar__logo{flex-shrink:0}
.sidebar__name{font-size:15px;font-weight:700;color:#f1f5f9;letter-spacing:.2px;line-height:1.2}
.sidebar__en{font-size:10px;color:var(--sb-t);letter-spacing:.6px;text-transform:uppercase;margin-top:2px}
.sidebar__section-label{padding:20px 20px 8px;font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--sb-t);opacity:.6;flex-shrink:0}
.sidebar__nav{flex:1;overflow-y:auto;padding:0 12px 16px;scrollbar-width:none;display:flex;flex-direction:column;gap:2px}
.sidebar__nav::-webkit-scrollbar{display:none}
.nav-link{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--r2);color:var(--sb-t);font-size:13.5px;transition:.2s;border:1px solid transparent;text-decoration:none}
.nav-link:hover{color:var(--sb-th);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--sb-acc);background:rgba(56,189,248,.12);border-color:rgba(56,189,248,.2)}
.nl-num{font-size:10px;font-weight:700;color:var(--sb-t);opacity:.55;width:18px;flex-shrink:0;font-family:'SF Mono',monospace;letter-spacing:.3px}
.nav-link.active .nl-num,.nav-link:hover .nl-num{opacity:1;color:var(--sb-acc)}
.nl-text{font-weight:500;letter-spacing:.1px}
.sidebar__foot{padding:16px 20px;border-top:1px solid var(--sb-bdr);flex-shrink:0}
.sidebar__foot p{font-size:11px;color:var(--sb-t);opacity:.5;line-height:1.5}
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(2px);z-index:400;opacity:0;transition:opacity .3s}
.overlay.active{display:block;opacity:1}

.main{margin-left:var(--sb-w);min-height:100vh}
.wrap{max-width:1080px;margin:0 auto;padding:0 48px}
.sec{padding:72px 0}
.sec--alt{background:var(--bg)}
.sec:not(.sec--alt){background:var(--surface)}

.sec-hd{margin-bottom:48px}
.sec-hd__badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--blue);background:var(--blue-l);padding:4px 12px;border-radius:20px;margin-bottom:14px}
.sec-hd h2{font-size:30px;font-weight:700;color:var(--t1);letter-spacing:-.3px;margin-bottom:8px;line-height:1.3}
.sec-hd p{font-size:15px;color:var(--t2);max-width:560px}

.fade-up{opacity:0;transform:translateY(22px);transition:opacity .5s ease calc(var(--d,0s)),transform .5s ease calc(var(--d,0s))}
.fade-up.in{opacity:1;transform:none}

.sec--hero{background:linear-gradient(155deg,#e8f0ff 0%,#f4f7fd 50%,#f1f4f8 100%);position:relative;overflow:hidden;padding:80px 0 64px}
.sec--hero::after{content:'';position:absolute;top:-80px;right:-60px;width:480px;height:480px;background:radial-gradient(circle,rgba(37,99,235,.07) 0%,transparent 70%);pointer-events:none}
.hero__head{max-width:700px;margin-bottom:48px}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--blue);margin-bottom:16px}
.dot-pulse{width:7px;height:7px;background:var(--blue);border-radius:50%;animation:dpulse 2s infinite}
@keyframes dpulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
.hero__h1{font-size:46px;font-weight:800;line-height:1.15;letter-spacing:-.6px;color:var(--t1);margin-bottom:16px}
.grad-text{background:linear-gradient(125deg,var(--blue) 0%,var(--teal) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero__lead{font-size:16px;line-height:1.8;color:var(--t2);margin-bottom:24px;max-width:620px}
.hero__kws{display:flex;flex-wrap:wrap;gap:8px}
.hero__kws span{padding:5px 14px;background:var(--blue-l);color:var(--blue);font-size:13px;font-weight:500;border-radius:20px;border:1px solid rgba(37,99,235,.15)}
.overview-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px}
.ov-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);padding:18px;transition:.2s;box-shadow:var(--sh1)}
.ov-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:var(--blue-m)}
.ov-icon{width:40px;height:40px;border-radius:var(--r2);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.ov-blue  {background:var(--blue-l);  color:var(--blue)}
.ov-teal  {background:var(--teal-l);  color:var(--teal)}
.ov-indigo{background:var(--indigo-l);color:var(--indigo)}
.ov-violet{background:var(--violet-l);color:var(--violet)}
.ov-card h3{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:6px}
.ov-card p{font-size:13px;color:var(--t2);line-height:1.55}
.site-map{background:rgba(255,255,255,.8);border:1px solid var(--border);border-radius:var(--r3);padding:16px 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.site-map__label{font-size:11px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--t3);white-space:nowrap}
.site-map__items{display:flex;flex-wrap:wrap;gap:8px}
.site-map__items span{font-size:12px;color:var(--t2);padding:3px 10px;background:var(--surf2);border:1px solid var(--border);border-radius:20px}

.taxo-map{background:linear-gradient(135deg,#0c1628 0%,#1a2d50 100%);border-radius:var(--r4);padding:32px 24px;margin-bottom:32px;color:white;display:flex;flex-direction:column;align-items:center;gap:20px}
.taxo-map__center{font-size:18px;font-weight:700;color:#e2ecf6;letter-spacing:.3px;padding:10px 24px;background:rgba(56,189,248,.15);border:1px solid rgba(56,189,248,.3);border-radius:24px}
.taxo-map__branches{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.taxo-branch{padding:8px 18px;border-radius:20px;font-size:13px;font-weight:600;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:default}
.taxo-branch span{font-size:10px;font-weight:400;opacity:.7}
.taxo-hot   {background:rgba(59,130,246,.2);  border:1px solid rgba(59,130,246,.4);  color:#93c5fd}
.taxo-cold  {background:rgba(8,145,178,.2);   border:1px solid rgba(8,145,178,.4);   color:#67e8f9}
.taxo-hw    {background:rgba(124,58,237,.2);  border:1px solid rgba(124,58,237,.4);  color:#c4b5fd}
.taxo-multi {background:rgba(5,150,105,.2);   border:1px solid rgba(5,150,105,.4);   color:#6ee7b7}
.taxo-single{background:rgba(217,119,6,.2);   border:1px solid rgba(217,119,6,.4);   color:#fcd34d}
.taxo-plat  {background:rgba(107,114,128,.2); border:1px solid rgba(107,114,128,.4); color:#d1d5db}
.taxo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
.taxo-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);padding:20px;transition:.2s;box-shadow:var(--sh1);position:relative;overflow:hidden}
.taxo-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px}
.taxo-card[data-type="hot"]::before   {background:var(--blue)}
.taxo-card[data-type="cold"]::before  {background:var(--teal)}
.taxo-card[data-type="hw"]::before    {background:var(--violet)}
.taxo-card[data-type="multi"]::before {background:var(--green)}
.taxo-card[data-type="single"]::before{background:var(--yellow)}
.taxo-card[data-type="plat"]::before  {background:var(--t3)}
.taxo-card:hover{box-shadow:var(--sh2);transform:translateY(-3px)}
.taxo-card__top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.taxo-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.taxo-card h4{font-size:15px;font-weight:600;color:var(--t1);flex:1}
.tc-badge{display:inline-block;padding:2px 9px;font-size:11px;font-weight:600;border-radius:10px;flex-shrink:0}
.tc-def{font-size:13.5px;color:var(--t2);line-height:1.65;margin-bottom:12px}
.tc-props{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}
.tc-prop{font-size:12.5px;padding-left:16px;position:relative;color:var(--t2);line-height:1.5}
.tc-prop.ok::before{content:'✓';position:absolute;left:0;color:var(--green);font-weight:700;font-size:11px}
.tc-prop.warn::before{content:'!';position:absolute;left:0;color:var(--yellow);font-weight:700;font-size:11px}
.tc-reco{font-size:12.5px;color:var(--t2);background:var(--surf2);border:1px solid var(--border);border-radius:var(--r2);padding:8px 12px}
.tc-reco strong{color:var(--t1)}
.taxo-note{background:linear-gradient(135deg,#f0f6ff,#f8fafd);border:1px solid var(--blue-l);border-radius:var(--r3);padding:24px}
.taxo-note__title{font-size:13px;font-weight:700;color:var(--t1);margin-bottom:16px}
.taxo-note__body{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:center}
.tn-col strong{display:block;font-size:14px;color:var(--t1);margin-bottom:6px}
.tn-col p{font-size:13.5px;color:var(--t2);line-height:1.7}
.tn-col em{font-style:italic;color:var(--blue);font-weight:500}
.tn-sep{width:1px;height:80px;background:var(--border2);margin:auto}

.brand-entry{background:var(--surface);border:1px solid var(--border);border-radius:var(--r4);overflow:hidden;margin-bottom:20px;box-shadow:var(--sh1);transition:.2s}
.brand-entry:hover{box-shadow:var(--sh2)}
.be-header{display:grid;grid-template-columns:80px 1fr auto;gap:20px;align-items:start;padding:24px 24px 20px;border-bottom:1px solid var(--border);background:var(--surf2)}
.be-logo-wrap{width:72px;height:72px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);display:flex;align-items:center;justify-content:center;padding:10px;flex-shrink:0}
.be-logo-img{width:100%;height:100%;object-fit:contain}
.be-header-info h3{font-size:18px;font-weight:700;color:var(--t1);margin-bottom:8px}
.be-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.btag{display:inline-block;padding:3px 10px;font-size:11px;font-weight:600;border-radius:20px}
.btag-blue  {background:var(--blue-l);  color:var(--blue)}
.btag-green {background:var(--green-l); color:var(--green)}
.btag-teal  {background:var(--teal-l);  color:var(--teal)}
.btag-purple{background:var(--violet-l);color:var(--violet)}
.btag-red   {background:var(--red-l);   color:var(--red)}
.btag-gray  {background:#f1f5f9;        color:#475569}
.be-tagline{font-size:13.5px;color:var(--t2);line-height:1.6}
.be-score-wrap{display:flex;flex-direction:column;gap:8px;flex-shrink:0;min-width:140px}
.be-score-item{display:flex;flex-direction:column;gap:4px}
.bsi-label{font-size:10px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;color:var(--t3)}
.bsi-dots{display:flex;gap:4px}
.bsi-dots .d{width:16px;height:5px;border-radius:3px;background:var(--border)}
.bsi-dots .d.on{background:var(--blue)}
.be-body{display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding:0}
.be-col{padding:20px 24px;border-right:1px solid var(--border)}
.be-col:last-child{border-right:none}
.be-col h5{font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--t3);margin-bottom:8px}
.be-col p{font-size:13.5px;color:var(--t2);line-height:1.7;margin-bottom:12px}
.be-list{display:flex;flex-direction:column;gap:5px}
.be-list li{font-size:13px;color:var(--t2);padding-left:14px;position:relative;line-height:1.5}
.be-list li::before{content:'–';position:absolute;left:0;color:var(--t3)}

.matrix-wrap{overflow:hidden;border-radius:var(--r3);border:1px solid var(--border);box-shadow:var(--sh1)}
.matrix-scroll{overflow-x:auto}
.matrix-table{width:100%;border-collapse:collapse;font-size:13px;background:var(--surface)}
.matrix-table thead{background:var(--surf2)}
.matrix-table th{padding:12px 14px;text-align:center;font-size:11px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;color:var(--t2);border-bottom:2px solid var(--border);white-space:nowrap;vertical-align:middle}
.matrix-table th.mt-feature{text-align:left;min-width:160px}
.th-logo{width:24px;height:24px;object-fit:contain;margin:0 auto 4px;border-radius:4px}
.matrix-table tr:hover td{background:var(--surf2)}
.matrix-table td{padding:10px 14px;text-align:center;border-bottom:1px solid var(--border);color:var(--t2);font-size:12.5px}
.matrix-table td.mf-label{text-align:left;font-weight:500;color:var(--t1);font-size:13px}
.matrix-table td.yes{color:var(--green);font-weight:600}
.matrix-table td.no{color:var(--t3)}
.matrix-table td.part{color:var(--yellow);font-weight:500}
.matrix-note{font-size:12px;color:var(--t3);padding:10px 16px;background:var(--surf2);border-top:1px solid var(--border);text-align:center}

.plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);padding:20px;box-shadow:var(--sh1);transition:.2s}
.plat-card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.plat-icon{width:48px;height:48px;border-radius:var(--r3);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.plat-card h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:8px}
.plat-card p{font-size:13.5px;color:var(--t2);line-height:1.7;margin-bottom:12px}
.plat-list{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.plat-list span{font-size:11px;padding:3px 9px;background:var(--surf2);border:1px solid var(--border);border-radius:20px;color:var(--t2)}
.plat-tip{font-size:12px;color:var(--t2);background:var(--surf2);border-left:3px solid var(--border);padding:6px 10px;border-radius:0 var(--r2) var(--r2) 0}

.steps-list{display:flex;flex-direction:column;gap:0}
.step-item{display:grid;grid-template-columns:72px 1fr;gap:0;padding:28px 0;border-bottom:1px solid var(--border);align-items:start}
.step-item:last-child{border-bottom:none}
.step-num{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:linear-gradient(135deg,var(--blue),var(--teal));color:white;font-size:14px;font-weight:700;border-radius:50%;flex-shrink:0;font-family:'SF Mono',monospace}
.step-body h4{font-size:16px;font-weight:600;color:var(--t1);margin-bottom:8px}
.step-body p{font-size:14px;color:var(--t2);line-height:1.75;margin-bottom:10px}
.step-body p:last-child{margin-bottom:0}
.step-highlight{font-size:13px;color:var(--blue);background:#f0f6ff;border:1px solid var(--blue-l);border-left:3px solid var(--blue);border-radius:var(--r2);padding:10px 14px;line-height:1.6;margin-top:10px}
.step-highlight.danger{color:var(--red);background:var(--red-l);border-color:rgba(220,38,38,.2);border-left-color:var(--red)}
.step-list{display:flex;flex-direction:column;gap:5px;font-size:13.5px;color:var(--t2);padding-left:0;margin-top:8px}
.step-list li{padding-left:20px;position:relative;line-height:1.6}
.step-list li::before{content:'→';position:absolute;left:0;color:var(--blue);font-weight:600}

.sec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.sec-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);padding:20px;box-shadow:var(--sh1);transition:.2s}
.sec-card:hover{box-shadow:var(--sh2)}
.sc-head{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.sc-icon{width:32px;height:32px;border-radius:var(--r2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sec-red    .sc-icon{background:var(--red-l);   color:var(--red)}
.sec-orange .sc-icon{background:var(--orange-l);color:var(--orange)}
.sec-blue   .sc-icon{background:var(--blue-l);  color:var(--blue)}
.sec-yellow .sc-icon{background:var(--yellow-l);color:var(--yellow)}
.sec-teal   .sc-icon{background:var(--teal-l);  color:var(--teal)}
.sec-purple .sc-icon{background:var(--purple-l);color:var(--purple)}
.sec-green  .sc-icon{background:var(--green-l); color:var(--green)}
.sc-head h4{font-size:14px;font-weight:600;color:var(--t1);flex:1}
.sc-badge{display:inline-block;padding:2px 8px;font-size:10px;font-weight:700;border-radius:10px;letter-spacing:.3px}
.sc-badge.red   {background:var(--red-l);   color:var(--red)}
.sc-badge.orange{background:var(--orange-l);color:var(--orange)}
.sc-badge.blue  {background:var(--blue-l);  color:var(--blue)}
.sc-badge.yellow{background:var(--yellow-l);color:var(--yellow)}
.sc-badge.teal  {background:var(--teal-l);  color:var(--teal)}
.sc-badge.purple{background:var(--purple-l);color:var(--purple)}
.sc-badge.green {background:var(--green-l); color:var(--green)}
.sec-card p{font-size:13.5px;color:var(--t2);line-height:1.7;margin-bottom:10px}
.sec-card ul{display:flex;flex-direction:column;gap:6px}
.sec-card li{font-size:13px;color:var(--t2);padding-left:18px;position:relative;line-height:1.55}
.sec-red    li::before{content:'→';position:absolute;left:0;color:var(--red);font-size:11px;font-weight:700}
.sec-orange li::before{content:'→';position:absolute;left:0;color:var(--orange);font-size:11px;font-weight:700}
.sec-blue   li::before{content:'→';position:absolute;left:0;color:var(--blue);font-size:11px;font-weight:700}
.sec-yellow li::before{content:'→';position:absolute;left:0;color:var(--yellow);font-size:11px;font-weight:700}
.sec-teal   li::before{content:'→';position:absolute;left:0;color:var(--teal);font-size:11px;font-weight:700}
.sec-purple li::before{content:'→';position:absolute;left:0;color:var(--purple);font-size:11px;font-weight:700}
.sec-green  li::before{content:'→';position:absolute;left:0;color:var(--green);font-size:11px;font-weight:700}
.sc-tip{font-size:12.5px;color:var(--green);background:var(--green-l);border-radius:var(--r2);padding:8px 12px;margin-top:10px;line-height:1.6}

.decision-tree{background:linear-gradient(135deg,#0c1628,#1a2d50);border-radius:var(--r3);padding:24px;margin-bottom:28px;color:white}
.dt-header{font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:16px}
.dt-q{font-size:15px;font-weight:600;color:#e2ecf6;margin-bottom:16px;text-align:center}
.dt-branches{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.dt-branch{display:flex;flex-direction:column;align-items:center;gap:6px}
.dt-label{font-size:11.5px;color:rgba(255,255,255,.65);text-align:center;line-height:1.4}
.dt-arrow{font-size:18px;color:rgba(255,255,255,.4)}
.dt-result{padding:10px 12px;border-radius:var(--r2);text-align:center;font-size:12.5px;font-weight:600;line-height:1.4;width:100%}
.dt-result small{display:block;font-size:11px;font-weight:400;margin-top:3px;opacity:.8}
.dt-result.blue  {background:rgba(37,99,235,.25); border:1px solid rgba(37,99,235,.4);  color:#93c5fd}
.dt-result.purple{background:rgba(124,58,237,.25);border:1px solid rgba(124,58,237,.4); color:#c4b5fd}
.dt-result.red   {background:rgba(220,38,38,.2);  border:1px solid rgba(220,38,38,.4);  color:#fca5a5}
.dt-result.gray  {background:rgba(107,114,128,.2);border:1px solid rgba(107,114,128,.4);color:#d1d5db}
.choose-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.choose-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);padding:18px;box-shadow:var(--sh1);transition:.2s}
.choose-card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.cc-scenario{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.cc-icon{font-size:20px;flex-shrink:0}
.cc-scenario h4{font-size:13.5px;font-weight:600;color:var(--t1);line-height:1.4}
.cc-rec{display:flex;align-items:center;gap:6px;margin-bottom:10px;font-size:13px}
.cc-arrow{color:var(--blue);font-weight:700}
.cc-rec strong{color:var(--blue);font-weight:600}
.choose-card p{font-size:13px;color:var(--t2);line-height:1.65;margin-bottom:8px}
.cc-tip{font-size:12px;color:var(--teal);background:var(--teal-l);border-radius:var(--r2);padding:7px 11px;line-height:1.55}

.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.open{border-color:var(--blue-m);box-shadow:var(--sh1)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;background:none;border:none;text-align:left;font-size:14.5px;font-weight:600;color:var(--t1);transition:.15s;line-height:1.45}
.faq-q:hover{background:var(--surf2);color:var(--blue)}
.faq-item.open .faq-q{color:var(--blue);background:#eef5ff}
.fq-icon{width:24px;height:24px;border-radius:50%;background:var(--border);color:var(--t2);font-size:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:.25s;padding-bottom:1px}
.faq-item.open .fq-icon{background:var(--blue);color:white;transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{padding:14px 20px 18px;font-size:14px;color:var(--t2);line-height:1.8;border-top:1px solid var(--blue-l)}
.faq-a-inner p strong{color:var(--t1)}

.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:20px}
.about-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r3);padding:20px;box-shadow:var(--sh1);transition:.2s;position:relative;overflow:hidden}
.about-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue),var(--teal))}
.about-card:hover{box-shadow:var(--sh2)}
.about-card h4{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:12px;padding-bottom:0;border-bottom:none;letter-spacing:.3px}
.about-card p{font-size:13.5px;color:var(--t2);line-height:1.75;margin-bottom:8px}
.about-card p:last-child{margin-bottom:0}
.contact-email{font-weight:700;color:var(--blue)!important;margin:8px 0}
.footer-bar{text-align:center;padding:24px 20px;background:linear-gradient(135deg,rgba(37,99,235,.03),rgba(8,145,178,.03));border:1px solid var(--border);border-radius:var(--r3);margin-top:28px}
.footer-bar p{font-size:12.5px;color:var(--t1);line-height:1.7;font-weight:500}
.footer-bar p:first-child{color:var(--blue);font-weight:600;margin-bottom:8px;letter-spacing:.2px}
.footer-bar p:last-child{color:var(--t2);font-size:12px}

::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}

@media(max-width:1280px){
  .wrap{padding:0 36px}
  .overview-cards{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:1024px){
  :root{--sb-w:230px}
  .sec{padding:56px 0}
  .hero__h1{font-size:36px}
  .taxo-grid{grid-template-columns:repeat(2,1fr)}
  .plat-grid{grid-template-columns:repeat(2,1fr)}
  .choose-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:repeat(2,1fr)}
  .dt-branches{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:768px){
  .mob-bar{display:flex}
  .sidebar{transform:translateX(-100%);transition:transform .3s}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;padding-top:54px}
  .wrap{padding:0 16px}
  .sec{padding:40px 0}
  .sec-hd h2{font-size:24px;margin-bottom:32px}
  .sec-hd p{font-size:14px}
  .hero__h1{font-size:28px;line-height:1.2;margin-bottom:12px}
  .hero__lead{font-size:14px;line-height:1.7;margin-bottom:16px}
  .overview-cards{grid-template-columns:1fr;gap:12px;margin-bottom:16px}
  .ov-card{padding:16px}
  .ov-card h3{font-size:13px;margin-bottom:4px}
  .ov-card p{font-size:12px}
  .site-map{flex-direction:column;gap:12px}
  .site-map__items{gap:6px}
  .taxo-map{padding:20px 16px}
  .taxo-map__branches{gap:6px}
  .taxo-grid{grid-template-columns:1fr}
  .taxo-note__body{grid-template-columns:1fr;gap:12px}
  .tn-sep{display:none}
  .be-header{grid-template-columns:64px 1fr;grid-template-rows:auto auto}
  .be-score-wrap{grid-column:1/-1;padding:0 0 16px 0}
  .be-body{grid-template-columns:1fr}
  .be-col{border-right:none;border-bottom:1px solid var(--border);padding:16px 0}
  .be-col:last-child{border-bottom:none}
  .sec-grid{grid-template-columns:1fr;gap:12px}
  .sec-card{padding:16px}
  .plat-grid{grid-template-columns:1fr}
  .plat-card{padding:16px}
  .steps-list .step-item{grid-template-columns:54px 1fr;gap:8px;padding:20px 0}
  .step-num{width:40px;height:40px;font-size:12px}
  .step-body h4{font-size:14px;font-weight:700;margin-bottom:6px}
  .step-body p{font-size:13px;margin-bottom:8px}
  .step-highlight{font-size:12px;padding:8px 12px}
  .choose-grid{grid-template-columns:1fr}
  .choose-card{padding:16px}
  .about-grid{grid-template-columns:1fr;gap:12px}
  .about-card{padding:16px;border-radius:8px}
  .dt-branches{grid-template-columns:1fr;gap:8px}
  .faq-q{font-size:13px;padding:14px}
}

@media(max-width:480px){
  .hero__h1{font-size:22px;line-height:1.3}
  .hero__lead{font-size:13px}
  .hero__kws{gap:6px}
  .hero__kws span{font-size:11px;padding:4px 10px}
  .overview-cards{grid-template-columns:1fr;gap:10px}
  .ov-icon{width:36px;height:36px;margin-bottom:10px}
  .ov-card h3{font-size:12px}
  .ov-card p{font-size:11px;line-height:1.5}
  .taxo-map{padding:16px 12px;margin-bottom:24px}
  .taxo-map__center{font-size:14px;padding:8px 16px}
  .taxo-branch{font-size:12px;padding:6px 12px}
  .taxo-branch span{font-size:9px}
  .taxo-grid{grid-template-columns:1fr}
  .taxo-card{padding:14px}
  .taxo-card h4{font-size:13px}
  .tc-def{font-size:12px}
  .dt-branches{grid-template-columns:1fr;gap:6px}
  .faq-q{font-size:12.5px;padding:12px 14px}
  .faq-a-inner p{padding:10px 14px 14px;font-size:12px}
  .be-header{padding:12px;grid-template-columns:56px 1fr;gap:12px}
  .be-logo-wrap{width:56px;height:56px;padding:8px}
  .be-header-info h3{font-size:15px}
  .be-tagline{font-size:12px}
  .be-score-wrap{min-width:120px}
  .about-card{padding:14px;margin-bottom:10px}
  .about-card h4{font-size:13px;margin-bottom:8px;font-weight:700}
  .about-card p{font-size:12px;line-height:1.6}
  .footer-bar{padding:16px;margin-top:20px}
  .footer-bar p{font-size:11.5px;line-height:1.6}
  .footer-bar p:first-child{font-size:12px;margin-bottom:6px}
}

@media print{
  .sidebar,.mob-bar,.progress-bar,.overlay{display:none!important}
  .main{margin-left:0;padding-top:0}
}