/* roulang page: index */
:root{
  --pd-bg:#0D0F12;
  --pd-panel:#14181D;
  --pd-raised:#1B2027;
  --pd-line:rgba(255,255,255,.08);
  --pd-line-strong:rgba(255,255,255,.14);
  --pd-primary:#F5483C;
  --pd-primary-hover:#FF6154;
  --pd-primary-active:#D63A2F;
  --pd-primary-soft:rgba(245,72,60,.12);
  --pd-cyan:#2FE6C8;
  --pd-cyan-hover:#55F1D6;
  --pd-cyan-soft:rgba(47,230,200,.12);
  --pd-text:#E9ECEF;
  --pd-muted:#A6AFB8;
  --pd-dim:#6E7883;
  --pd-radius:14px;
  --pd-radius-sm:10px;
  --pd-shadow:0 6px 24px rgba(0,0,0,.45);
  --pd-shadow-lg:0 16px 48px rgba(0,0,0,.55);

  --bs-primary:#F5483C;
  --bs-body-bg:#0D0F12;
  --bs-body-color:#E9ECEF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:14px;
  --bs-link-color:#2FE6C8;
  --bs-link-hover-color:#55F1D6;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--pd-bg);
  color:var(--pd-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:clip;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--pd-cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--pd-cyan-hover)}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--pd-cyan);outline-offset:2px;border-radius:6px}
.pd-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- header ---------- */
.pd-header{position:sticky;top:0;z-index:1030;background:rgba(13,15,18,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--pd-line);transition:box-shadow .2s ease}
.pd-header.is-scrolled{box-shadow:0 10px 30px rgba(0,0,0,.55)}
.pd-header-inner{display:flex;align-items:center;gap:18px;height:64px}
.pd-brand{display:flex;align-items:center;gap:10px;min-width:0;flex-shrink:0}
.pd-brand-mark{width:34px;height:34px;border-radius:9px;background:var(--pd-primary);color:#fff;font-weight:700;font-size:18px;display:flex;align-items:center;justify-content:center;line-height:1;box-shadow:0 0 0 1px rgba(245,72,60,.4),0 0 16px rgba(245,72,60,.25)}
.pd-brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.pd-brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap}
.pd-brand-text em{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--pd-cyan);white-space:nowrap}
.pd-mainnav{display:flex;align-items:center;margin-left:12px;min-width:0}
.pd-navlink{position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;color:var(--pd-muted);font-size:15px;white-space:nowrap}
.pd-navlink::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--pd-cyan);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;box-shadow:0 0 10px rgba(47,230,200,.6)}
.pd-navlink:hover,.pd-navlink:focus{color:#fff}
.pd-navlink:hover::after,.pd-navlink:focus::after{transform:scaleX(1)}
.pd-navlink.is-active{color:#fff;text-shadow:0 0 12px rgba(47,230,200,.35)}
.pd-navlink.is-active::after{transform:scaleX(1)}
.pd-header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.pd-burger{display:none;width:44px;height:44px;border-radius:var(--pd-radius-sm);border:1px solid var(--pd-line-strong);background:var(--pd-panel);align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;transition:border-color .2s ease}
.pd-burger span{display:block;width:18px;height:2px;background:var(--pd-text);border-radius:2px}
.pd-burger:hover{border-color:var(--pd-cyan)}

/* ---------- buttons ---------- */
.pd-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--pd-radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .2s ease;line-height:1.4;text-align:center}
.pd-btn-primary{background:var(--pd-primary);color:#fff;border-color:var(--pd-primary)}
.pd-btn-primary:hover{background:var(--pd-primary-hover);color:#fff;border-color:var(--pd-primary-hover);box-shadow:0 0 0 1px rgba(47,230,200,.35),0 0 18px rgba(47,230,200,.25);transform:translateY(-2px)}
.pd-btn-primary:active{background:var(--pd-primary-active);transform:translateY(0);box-shadow:none}
.pd-btn-ghost{background:transparent;color:var(--pd-text);border-color:#2A3138}
.pd-btn-ghost:hover{color:#fff;border-color:var(--pd-cyan);transform:translateY(-2px)}
.pd-btn-sm{padding:9px 16px;font-size:14px}
.pd-btn-block{width:100%}
.pd-textlink{display:inline-flex;align-items:center;gap:6px;color:var(--pd-cyan);font-weight:600;font-size:15px}
.pd-textlink .pd-arrow{transition:transform .2s ease}
.pd-textlink:hover .pd-arrow{transform:translateX(2px)}

/* ---------- sections ---------- */
.pd-section{padding:96px 0;position:relative}
.pd-section-alt{background:var(--pd-panel);border-top:1px solid var(--pd-line);border-bottom:1px solid var(--pd-line)}
.pd-section-head{max-width:820px;margin-bottom:36px}
.pd-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.04em;color:var(--pd-cyan);background:var(--pd-cyan-soft);border:1px solid rgba(47,230,200,.28);padding:3px 10px;border-radius:999px;margin-bottom:14px}
.pd-h2{position:relative;font-size:28px;line-height:1.4;font-weight:700;color:#fff;padding-left:14px}
.pd-h2::before{content:"";position:absolute;left:0;top:6px;width:3px;height:18px;background:var(--pd-primary);border-radius:2px}
.pd-h3{font-size:20px;line-height:1.5;font-weight:600;color:#fff}
.pd-lead{color:var(--pd-muted);font-size:16px;line-height:1.85;margin-top:14px;max-width:760px}
.pd-note{font-size:13px;color:var(--pd-dim);line-height:1.7}

/* ---------- hero ---------- */
.pd-hero{position:relative;padding:80px 0 88px;background:radial-gradient(900px 420px at 82% -10%,rgba(245,72,60,.16),transparent 62%),radial-gradient(700px 380px at 8% 10%,rgba(47,230,200,.10),transparent 60%),var(--pd-bg);border-bottom:1px solid var(--pd-line);overflow:hidden}
.pd-hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
.pd-hero h1{font-size:40px;line-height:1.25;font-weight:700;color:#fff;letter-spacing:.01em}
.pd-hero h1 .pd-accent{color:var(--pd-primary)}
.pd-hero-sub{color:var(--pd-muted);font-size:16px;line-height:1.85;margin-top:20px;max-width:640px}
.pd-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.pd-hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:36px}
.pd-metric{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius-sm);padding:14px 16px;min-width:0}
.pd-metric dt{font-size:12px;color:var(--pd-dim);letter-spacing:.04em}
.pd-metric dd{font-size:15px;color:var(--pd-text);font-weight:600;margin-top:4px;font-variant-numeric:tabular-nums}

.pd-panel-visual{position:relative;background:var(--pd-raised);border:1px solid rgba(47,230,200,.28);border-radius:12px;padding:20px;box-shadow:var(--pd-shadow),inset 0 0 40px rgba(47,230,200,.06)}
.pd-panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--pd-line)}
.pd-panel-title{font-size:15px;font-weight:700;color:#fff}
.pd-panel-tag{font-size:12px;color:var(--pd-cyan);background:var(--pd-cyan-soft);border-radius:999px;padding:2px 10px}
.pd-panel-rows{margin-top:6px}
.pd-panel-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.07);font-variant-numeric:tabular-nums}
.pd-panel-row:last-child{border-bottom:0}
.pd-panel-row span{font-size:14px;color:var(--pd-muted);min-width:0}
.pd-panel-row b{font-size:14px;color:#fff;font-weight:600}
.pd-panel-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:8px;grid-column:1/-1}
.pd-panel-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--pd-primary),var(--pd-cyan));border-radius:999px}
.pd-float-card{position:absolute;right:-10px;bottom:-22px;background:var(--pd-panel);border:1px solid var(--pd-line-strong);border-radius:12px;padding:12px 16px;box-shadow:var(--pd-shadow-lg);min-width:150px}
.pd-float-card em{display:block;font-style:normal;font-size:12px;color:var(--pd-dim);letter-spacing:.04em}
.pd-float-card b{display:block;font-size:15px;color:var(--pd-cyan);margin-top:2px}

/* ---------- tabs / rank ---------- */
.pd-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.pd-tab{border:1px solid var(--pd-line-strong);background:var(--pd-panel);color:var(--pd-muted);border-radius:999px;padding:8px 18px;font-size:14px;cursor:pointer;transition:all .2s ease}
.pd-tab:hover{color:#fff;border-color:rgba(47,230,200,.45)}
.pd-tab.is-active{background:var(--pd-primary-soft);border-color:rgba(245,72,60,.6);color:#fff;box-shadow:0 0 0 1px rgba(245,72,60,.25)}
.pd-rank-list{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);overflow:hidden;box-shadow:var(--pd-shadow)}
.pd-rank-head{display:grid;grid-template-columns:48px minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.3fr);gap:16px;padding:14px 18px;background:var(--pd-raised);border-bottom:1px solid var(--pd-line);font-size:12px;letter-spacing:.04em;color:var(--pd-dim)}
.pd-rank-row{position:relative;display:grid;grid-template-columns:48px minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.3fr);gap:16px;align-items:center;padding:15px 18px;border-bottom:1px solid var(--pd-line);transition:background .2s ease}
.pd-rank-row:last-child{border-bottom:0}
.pd-rank-row::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--pd-primary);transform:scaleY(0);transition:transform .2s ease}
.pd-rank-row:hover{background:var(--pd-raised)}
.pd-rank-row:hover::before{transform:scaleY(1)}
.pd-rank-no{width:28px;height:28px;border-radius:8px;background:var(--pd-raised);border:1px solid var(--pd-line-strong);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--pd-muted);font-variant-numeric:tabular-nums}
.pd-rank-row:nth-child(2) .pd-rank-no,.pd-rank-row:nth-child(3) .pd-rank-no,.pd-rank-row:nth-child(4) .pd-rank-no{background:var(--pd-primary-soft);border-color:rgba(245,72,60,.45);color:var(--pd-primary-hover)}
.pd-rank-name{font-size:15px;font-weight:600;color:#fff;min-width:0}
.pd-rank-cell{font-size:14px;color:var(--pd-muted);min-width:0;font-variant-numeric:tabular-nums}
.pd-rank-tagline{font-size:13px;color:var(--pd-dim);margin-top:2px}
.pd-tag{display:inline-block;font-size:12px;line-height:1.4;letter-spacing:.04em;padding:2px 10px;border-radius:999px;background:var(--pd-cyan-soft);color:var(--pd-cyan);border:1px solid rgba(47,230,200,.25)}
.pd-tag-red{background:var(--pd-primary-soft);color:var(--pd-primary-hover);border-color:rgba(245,72,60,.3)}

/* ---------- download ---------- */
.pd-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pd-dl-card{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:26px 24px;display:flex;flex-direction:column;gap:12px;transition:all .2s ease;min-width:0}
.pd-dl-card:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-dl-icon{width:44px;height:44px;border-radius:12px;background:var(--pd-raised);border:1px solid var(--pd-line-strong);display:flex;align-items:center;justify-content:center;color:var(--pd-cyan);font-size:18px;font-weight:700}
.pd-dl-name{font-size:17px;font-weight:700;color:#fff}
.pd-dl-desc{font-size:14px;color:var(--pd-muted);line-height:1.75;flex-grow:1}
.pd-dl-foot{display:flex;align-items:center;justify-content:space-between;gap:12px}
.pd-dl-ext{font-size:12px;color:var(--pd-dim);letter-spacing:.06em;font-variant-numeric:tabular-nums}

/* ---------- features ---------- */
.pd-feature-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:24px}
.pd-big-card{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:28px;transition:all .2s ease;min-width:0}
.pd-big-card:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-big-visual{height:140px;border-radius:12px;background:linear-gradient(135deg,rgba(245,72,60,.18),rgba(47,230,200,.12)),var(--pd-raised);border:1px solid var(--pd-line);margin-bottom:18px;position:relative;overflow:hidden}
.pd-big-visual::after{content:"";position:absolute;left:18px;right:18px;bottom:26px;height:2px;background:linear-gradient(90deg,transparent,var(--pd-cyan),transparent);opacity:.55}
.pd-big-visual .pd-dot{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--pd-primary);box-shadow:0 0 12px rgba(245,72,60,.7)}
.pd-big-visual .d1{left:16%;bottom:38px}
.pd-big-visual .d2{left:42%;bottom:62px;background:var(--pd-cyan);box-shadow:0 0 12px rgba(47,230,200,.7)}
.pd-big-visual .d3{left:68%;bottom:48px}
.pd-big-visual .d4{left:84%;bottom:76px;background:var(--pd-cyan);box-shadow:0 0 12px rgba(47,230,200,.7)}
.pd-points{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.pd-points li{position:relative;padding-left:16px;font-size:14px;color:var(--pd-muted);line-height:1.75}
.pd-points li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--pd-primary)}
.pd-strip-list{display:flex;flex-direction:column;gap:12px}
.pd-strip{display:flex;align-items:center;gap:14px;background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius-sm);padding:16px 18px;transition:all .2s ease;min-width:0}
.pd-strip:hover{border-color:rgba(47,230,200,.35);background:var(--pd-raised)}
.pd-strip-ico{width:36px;height:36px;flex:0 0 36px;border-radius:9px;background:var(--pd-cyan-soft);color:var(--pd-cyan);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.pd-strip-body{min-width:0;flex:1 1 auto}
.pd-strip-title{font-size:15px;font-weight:600;color:#fff}
.pd-strip-desc{font-size:13px;color:var(--pd-dim);line-height:1.7;margin-top:2px}
.pd-strip-arrow{color:var(--pd-dim);flex:0 0 auto;transition:transform .2s ease,color .2s ease}
.pd-strip:hover .pd-strip-arrow{color:var(--pd-cyan);transform:translateX(3px)}

/* ---------- scenario band ---------- */
.pd-scene-band{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border:1px solid var(--pd-line);border-radius:var(--pd-radius);overflow:hidden;background:var(--pd-panel)}
.pd-scene{padding:28px 22px;border-right:1px solid var(--pd-line);min-width:0;transition:background .2s ease}
.pd-scene:last-child{border-right:0}
.pd-scene:hover{background:var(--pd-raised)}
.pd-scene-no{font-size:13px;letter-spacing:.08em;color:var(--pd-primary);font-weight:700;font-variant-numeric:tabular-nums}
.pd-scene-name{font-size:17px;font-weight:600;color:#fff;margin-top:8px}
.pd-scene-desc{font-size:14px;color:var(--pd-muted);line-height:1.75;margin-top:8px}

/* ---------- showcase ---------- */
.pd-show-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.pd-show-item{min-width:0}
.pd-show-frame{border-radius:12px;border:1px solid var(--pd-line);background:var(--pd-raised);position:relative;overflow:hidden;transition:border-color .2s ease}
.pd-show-frame:hover{border-color:rgba(47,230,200,.45)}
.pd-show-frame.ratio-169{aspect-ratio:16/10}
.pd-show-frame.ratio-43{aspect-ratio:4/3}
.pd-show-frame .pd-frame-inner{position:absolute;inset:0;padding:18px;display:flex;flex-direction:column;gap:10px}
.pd-frame-bar{height:10px;border-radius:999px;background:rgba(255,255,255,.07)}
.pd-frame-bar.w60{width:60%}
.pd-frame-bar.w40{width:40%}
.pd-frame-bar.w80{width:80%}
.pd-frame-bar.cyan{background:linear-gradient(90deg,rgba(47,230,200,.5),rgba(47,230,200,.05))}
.pd-frame-bar.red{background:linear-gradient(90deg,rgba(245,72,60,.55),rgba(245,72,60,.05))}
.pd-frame-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:auto}
.pd-frame-col{height:44px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid var(--pd-line)}
.pd-show-cap{font-size:14px;color:var(--pd-muted);margin-top:12px;line-height:1.75}

/* ---------- steps ---------- */
.pd-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative}
.pd-step{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:22px;min-width:0;position:relative;transition:all .2s ease}
.pd-step:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px)}
.pd-step-no{font-size:12px;letter-spacing:.08em;color:var(--pd-cyan);font-variant-numeric:tabular-nums}
.pd-step-name{font-size:16px;font-weight:600;color:#fff;margin-top:8px}
.pd-step-desc{font-size:14px;color:var(--pd-muted);line-height:1.75;margin-top:8px}
.pd-step::after{content:"";position:absolute;right:-12px;top:44px;width:6px;height:2px;background:var(--pd-line-strong)}
.pd-step:last-child::after{display:none}

/* ---------- rate groups ---------- */
.pd-rate-wrap{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:24px;align-items:start}
.pd-rate-groups{display:flex;flex-direction:column;gap:18px}
.pd-rate-group{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:20px 22px;min-width:0}
.pd-rate-group h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:10px}
.pd-rate-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--pd-line);font-size:14px;min-width:0}
.pd-rate-row:last-child{border-bottom:0}
.pd-rate-row dt{color:var(--pd-muted);min-width:0}
.pd-rate-row dd{color:#fff;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.pd-side-card{background:var(--pd-raised);border:1px solid var(--pd-line-strong);border-radius:var(--pd-radius);padding:22px;position:sticky;top:88px}
.pd-side-card h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:10px}
.pd-side-card p{font-size:14px;color:var(--pd-muted);line-height:1.8}
.pd-side-card p + p{margin-top:10px}

/* ---------- sample cards ---------- */
.pd-sample-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pd-sample{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:24px;display:flex;flex-direction:column;gap:12px;min-width:0;transition:all .2s ease}
.pd-sample:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-sample h3{font-size:17px;font-weight:600;color:#fff}
.pd-sample ul{display:flex;flex-direction:column;gap:8px;flex-grow:1}
.pd-sample li{position:relative;padding-left:16px;font-size:14px;color:var(--pd-muted);line-height:1.75}
.pd-sample li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--pd-cyan)}
.pd-sample .pd-warn{font-size:13px;color:var(--pd-dim);border-top:1px solid var(--pd-line);padding-top:10px}

/* ---------- pricing ---------- */
.pd-price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}
.pd-price{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:28px 24px;display:flex;flex-direction:column;gap:14px;min-width:0;position:relative;transition:all .2s ease}
.pd-price:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px)}
.pd-price.is-featured{border-color:rgba(245,72,60,.6);box-shadow:0 0 0 1px rgba(245,72,60,.25),var(--pd-shadow);transform:translateY(-8px)}
.pd-price.is-featured:hover{transform:translateY(-10px)}
.pd-price-badge{position:absolute;top:-12px;right:20px;font-size:12px;letter-spacing:.04em;background:var(--pd-primary);color:#fff;border-radius:999px;padding:3px 12px}
.pd-price-name{font-size:17px;font-weight:700;color:#fff}
.pd-price-scope{font-size:14px;color:var(--pd-muted);line-height:1.75}
.pd-price-amount{font-size:28px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.pd-price-amount small{display:block;font-size:12px;font-weight:400;color:var(--pd-dim);margin-top:4px;letter-spacing:.02em}
.pd-price ul{display:flex;flex-direction:column;gap:8px;flex-grow:1}
.pd-price li{position:relative;padding-left:16px;font-size:14px;color:var(--pd-muted);line-height:1.75}
.pd-price li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--pd-primary)}

/* ---------- review wall ---------- */
.pd-review-grid{columns:3;column-gap:20px}
.pd-review{break-inside:avoid;background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:20px;margin-bottom:20px;transition:all .2s ease}
.pd-review:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px)}
.pd-review-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.pd-review-who{font-size:13px;color:var(--pd-cyan);background:var(--pd-cyan-soft);border-radius:999px;padding:2px 10px;letter-spacing:.02em}
.pd-review-body{font-size:14px;color:var(--pd-muted);line-height:1.8}

/* ---------- two col info ---------- */
.pd-info-list{display:flex;flex-direction:column;border-top:1px solid var(--pd-line)}
.pd-info-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:24px;padding:22px 0;border-bottom:1px solid var(--pd-line);min-width:0}
.pd-info-row h3{font-size:16px;font-weight:600;color:#fff}
.pd-info-row p{font-size:15px;color:var(--pd-muted);line-height:1.85}

/* ---------- news ---------- */
.pd-news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pd-news-card{display:flex;flex-direction:column;gap:10px;background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:22px;min-width:0;transition:all .2s ease;color:inherit}
.pd-news-card:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow);color:inherit}
.pd-news-cat{font-size:12px;color:var(--pd-primary-hover);background:var(--pd-primary-soft);border:1px solid rgba(245,72,60,.3);border-radius:999px;padding:2px 10px;align-self:flex-start;letter-spacing:.04em}
.pd-news-title{font-size:17px;font-weight:600;color:#fff;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pd-news-sum{font-size:14px;color:var(--pd-muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pd-news-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:10px;border-top:1px solid var(--pd-line);font-size:13px;color:var(--pd-dim)}
.pd-empty{background:var(--pd-panel);border:1px dashed var(--pd-line-strong);border-radius:var(--pd-radius);padding:56px 24px;text-align:center;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px}
.pd-empty-ico{width:48px;height:48px;border-radius:12px;border:1px solid var(--pd-line-strong);display:flex;align-items:center;justify-content:center;color:var(--pd-dim);font-size:22px}
.pd-empty p{color:var(--pd-muted);font-size:15px}
.pd-news-more{margin-top:28px}

/* ---------- faq ---------- */
.pd-faq{display:flex;flex-direction:column;gap:12px}
.pd-faq-item{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);overflow:hidden;transition:border-color .2s ease}
.pd-faq-item.is-open{border-color:rgba(245,72,60,.55)}
.pd-faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:transparent;border:0;color:#fff;font-size:16px;font-weight:600;text-align:left;cursor:pointer;line-height:1.6}
.pd-faq-q:hover{color:var(--pd-cyan)}
.pd-faq-sign{flex:0 0 auto;width:22px;height:22px;position:relative}
.pd-faq-sign::before,.pd-faq-sign::after{content:"";position:absolute;background:var(--pd-primary);border-radius:2px;transition:transform .2s ease}
.pd-faq-sign::before{left:0;top:10px;width:22px;height:2px}
.pd-faq-sign::after{left:10px;top:0;width:2px;height:22px}
.pd-faq-item.is-open .pd-faq-sign::after{transform:scaleY(0)}
.pd-faq-a{display:none;padding:0 22px 20px;font-size:15px;color:var(--pd-muted);line-height:1.85;border-left:3px solid var(--pd-primary);margin:0 22px 18px;padding-left:16px;background:var(--pd-raised);border-radius:0 8px 8px 0;padding-top:14px}
.pd-faq-item.is-open .pd-faq-a{display:block}

/* ---------- cta ---------- */
.pd-cta{background:var(--pd-panel);border-top:1px solid rgba(47,230,200,.45);border-radius:var(--pd-radius);padding:40px;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:28px;align-items:center;box-shadow:var(--pd-shadow)}
.pd-cta h2{font-size:26px;line-height:1.4;color:#fff;font-weight:700}
.pd-cta p{font-size:15px;color:var(--pd-muted);margin-top:10px;line-height:1.85}
.pd-cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- footer ---------- */
.pd-footer{background:#0A0C0E;border-top:1px solid var(--pd-line);padding:64px 0 28px;margin-top:0}
.pd-footer-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.3fr);gap:32px}
.pd-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.pd-footer p{font-size:14px;color:var(--pd-muted);line-height:1.8}
.pd-footer-links{display:flex;flex-direction:column;gap:10px}
.pd-footer-links a{font-size:14px;color:var(--pd-muted)}
.pd-footer-links a:hover{color:var(--pd-cyan)}
.pd-friend{border-top:1px solid var(--pd-line);margin-top:40px;padding-top:24px}
.pd-friend h3{font-size:14px;color:var(--pd-dim);letter-spacing:.04em;margin-bottom:12px}
.pd-friend-list{display:flex;flex-wrap:wrap;gap:10px 18px}
.pd-friend-list a{font-size:14px;color:var(--pd-muted)}
.pd-friend-list a:hover{color:var(--pd-cyan)}
.pd-footer-bottom{border-top:1px solid var(--pd-line);margin-top:28px;padding-top:20px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:var(--pd-dim)}
.pd-risk{font-size:13px;color:var(--pd-dim);line-height:1.8;margin-top:10px;padding-left:12px;border-left:2px solid rgba(245,72,60,.5)}

/* ---------- offcanvas drawer ---------- */
.pd-drawer{background:var(--pd-bg)!important;color:var(--pd-text);width:300px;border-left:1px solid var(--pd-line)}
.pd-drawer .offcanvas-header{border-bottom:1px solid var(--pd-line);padding:18px 20px}
.pd-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}
.pd-drawer-body{padding:16px 20px 28px;display:flex;flex-direction:column;gap:4px}
.pd-drawer-body a.pd-drawer-link{display:flex;align-items:center;min-height:52px;padding:0 12px;color:var(--pd-muted);font-size:16px;border-radius:10px;transition:all .2s ease}
.pd-drawer-body a.pd-drawer-link:hover,.pd-drawer-body a.pd-drawer-link.is-active{background:var(--pd-panel);color:#fff;box-shadow:inset 2px 0 0 var(--pd-cyan)}
.pd-drawer-dl{margin-top:auto;padding-top:20px}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .pd-hero h1{font-size:34px}
  .pd-hero-grid{gap:32px}
  .pd-mainnav{margin-left:0}
  .pd-navlink{padding:0 10px;font-size:14px}
  .pd-navlink::after{left:10px;right:10px}
}
@media (max-width:991px){
  .pd-section{padding:72px 0}
  .pd-mainnav{display:none}
  .pd-burger{display:flex}
  .pd-header-actions .pd-btn-sm{display:none}
  .pd-hero{padding:56px 0 64px}
  .pd-hero-grid{grid-template-columns:minmax(0,1fr);gap:40px}
  .pd-hero h1{font-size:32px}
  .pd-feature-grid{grid-template-columns:minmax(0,1fr)}
  .pd-rate-wrap{grid-template-columns:minmax(0,1fr)}
  .pd-side-card{position:static}
  .pd-scene-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-scene:nth-child(2){border-right:0}
  .pd-scene:nth-child(1),.pd-scene:nth-child(2){border-bottom:1px solid var(--pd-line)}
  .pd-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-step:nth-child(2)::after{display:none}
  .pd-news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-price-grid{grid-template-columns:minmax(0,1fr)}
  .pd-price.is-featured{transform:none}
  .pd-price.is-featured:hover{transform:translateY(-2px)}
  .pd-review-grid{columns:2}
  .pd-sample-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-cta{grid-template-columns:minmax(0,1fr);padding:32px}
  .pd-cta-actions{justify-content:flex-start}
  .pd-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .pd-float-card{right:10px;bottom:-18px}
}
@media (max-width:767px){
  .pd-container{padding-left:16px;padding-right:16px}
  .pd-section{padding:56px 0}
  .pd-hero{padding:44px 0 52px}
  .pd-hero h1{font-size:28px;line-height:1.3}
  .pd-h2{font-size:23px}
  .pd-h3{font-size:18px}
  .pd-hero-metrics{grid-template-columns:minmax(0,1fr)}
  .pd-hero-actions .pd-btn{width:100%}
  .pd-dl-grid{grid-template-columns:minmax(0,1fr)}
  .pd-rank-head{display:none}
  .pd-rank-row{grid-template-columns:32px minmax(0,1fr);row-gap:6px;padding:16px;gap:10px}
  .pd-rank-no{grid-row:1 / span 4;align-self:start;margin-top:2px}
  .pd-rank-name,.pd-rank-cell{grid-column:2}
  .pd-scene-band{grid-template-columns:minmax(0,1fr)}
  .pd-scene{border-right:0;border-bottom:1px solid var(--pd-line);padding:22px 18px}
  .pd-scene:last-child{border-bottom:0}
  .pd-steps{grid-template-columns:minmax(0,1fr)}
  .pd-step::after{display:none}
  .pd-show-grid{grid-template-columns:minmax(0,1fr)}
  .pd-news-grid{grid-template-columns:minmax(0,1fr)}
  .pd-sample-grid{grid-template-columns:minmax(0,1fr)}
  .pd-review-grid{columns:1}
  .pd-info-row{grid-template-columns:minmax(0,1fr);gap:8px}
  .pd-footer-grid{grid-template-columns:minmax(0,1fr)}
  .pd-cta{padding:26px 20px}
  .pd-cta h2{font-size:22px}
  .pd-cta-actions .pd-btn{width:100%}
  .pd-faq-q{font-size:15px;padding:16px 18px}
  .pd-faq-a{margin:0 18px 16px;padding:12px 14px}
  .pd-float-card{position:static;margin-top:14px;display:inline-block}
  .pd-panel-visual{padding:16px}
}
@media (max-width:400px){
  .pd-hero h1{font-size:25px}
  .pd-brand-text strong{font-size:14px}
  .pd-brand-text em{font-size:10px}
  .pd-btn{padding:11px 18px;font-size:14px}
}

/* roulang page: article */
:root{
  --pd-bg:#0D0F12;
  --pd-panel:#14181D;
  --pd-raised:#1B2027;
  --pd-line:rgba(255,255,255,.08);
  --pd-line-strong:rgba(255,255,255,.14);
  --pd-primary:#F5483C;
  --pd-primary-hover:#FF6154;
  --pd-primary-active:#D63A2F;
  --pd-primary-soft:rgba(245,72,60,.12);
  --pd-cyan:#2FE6C8;
  --pd-cyan-hover:#55F1D6;
  --pd-cyan-soft:rgba(47,230,200,.12);
  --pd-text:#E9ECEF;
  --pd-muted:#A6AFB8;
  --pd-dim:#6E7883;
  --pd-radius:14px;
  --pd-radius-sm:10px;
  --pd-shadow:0 6px 24px rgba(0,0,0,.45);
  --pd-shadow-lg:0 16px 48px rgba(0,0,0,.55);

  --bs-primary:#F5483C;
  --bs-body-bg:#0D0F12;
  --bs-body-color:#E9ECEF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:14px;
  --bs-link-color:#2FE6C8;
  --bs-link-hover-color:#55F1D6;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--pd-bg);
  color:var(--pd-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:clip;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--pd-cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--pd-cyan-hover)}
h1,h2,h3,h4{margin:0;color:#fff;font-weight:700}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--pd-cyan);outline-offset:2px}
.pd-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- header ---------- */
.pd-header{position:sticky;top:0;z-index:1030;background:rgba(13,15,18,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--pd-line);transition:box-shadow .2s ease}
.pd-header.is-scrolled{box-shadow:0 10px 30px rgba(0,0,0,.55)}
.pd-header-inner{display:flex;align-items:center;gap:18px;height:64px}
.pd-brand{display:flex;align-items:center;gap:10px;min-width:0;flex-shrink:0}
.pd-brand-mark{width:34px;height:34px;border-radius:9px;background:var(--pd-primary);color:#fff;font-weight:700;font-size:18px;display:flex;align-items:center;justify-content:center;line-height:1;box-shadow:0 0 0 1px rgba(245,72,60,.4),0 0 16px rgba(245,72,60,.25)}
.pd-brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.pd-brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap}
.pd-brand-text em{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--pd-cyan);white-space:nowrap}
.pd-mainnav{display:flex;align-items:center;margin-left:12px;min-width:0}
.pd-navlink{position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;color:var(--pd-muted);font-size:15px;white-space:nowrap}
.pd-navlink::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--pd-cyan);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;box-shadow:0 0 10px rgba(47,230,200,.6)}
.pd-navlink:hover,.pd-navlink:focus{color:#fff}
.pd-navlink:hover::after,.pd-navlink:focus::after{transform:scaleX(1)}
.pd-navlink.is-active{color:#fff;text-shadow:0 0 12px rgba(47,230,200,.35)}
.pd-navlink.is-active::after{transform:scaleX(1)}
.pd-header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.pd-menu-btn{display:none;width:42px;height:42px;border-radius:var(--pd-radius-sm);border:1px solid var(--pd-line-strong);background:transparent;color:var(--pd-text);font-size:18px;line-height:1;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}
.pd-menu-btn:hover{border-color:var(--pd-cyan);color:#fff}
.pd-mobile-panel{display:none}
.pd-mobile-panel .pd-mobile-cta{margin-top:20px}

/* ---------- buttons ---------- */
.pd-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--pd-radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .2s ease;line-height:1.4;text-align:center}
.pd-btn-primary{background:var(--pd-primary);color:#fff;border-color:var(--pd-primary)}
.pd-btn-primary:hover{background:var(--pd-primary-hover);color:#fff;border-color:var(--pd-primary-hover);box-shadow:0 0 0 1px rgba(47,230,200,.35),0 0 18px rgba(47,230,200,.25);transform:translateY(-2px)}
.pd-btn-primary:active{background:var(--pd-primary-active);transform:translateY(0);box-shadow:none}
.pd-btn-ghost{background:transparent;color:var(--pd-text);border-color:#2A3138}
.pd-btn-ghost:hover{color:#fff;border-color:var(--pd-cyan);transform:translateY(-2px)}
.pd-btn-sm{padding:9px 16px;font-size:14px}
.pd-btn-block{width:100%}

/* ---------- sections ---------- */
.pd-section{padding:96px 0;position:relative}
.pd-section-alt{background:var(--pd-panel);border-top:1px solid var(--pd-line);border-bottom:1px solid var(--pd-line)}
.pd-section-head{max-width:820px;margin-bottom:36px}
.pd-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.04em;color:var(--pd-cyan);background:var(--pd-cyan-soft);border:1px solid rgba(47,230,200,.28);padding:3px 10px;border-radius:999px;margin-bottom:14px}
.pd-section-head h2{font-size:28px;line-height:1.4;position:relative;padding-left:14px}
.pd-section-head h2::before{content:"";position:absolute;left:0;top:.34em;width:3px;height:18px;background:var(--pd-primary);border-radius:2px}
.pd-lead{color:var(--pd-muted);font-size:16px;line-height:1.85;margin-top:14px;max-width:760px}

/* ---------- article layout ---------- */
.pd-article-wrap{padding:36px 0 72px;background:var(--pd-bg)}
.pd-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--pd-dim);margin-bottom:26px;line-height:1.6}
.pd-crumbs a{color:var(--pd-muted)}
.pd-crumbs a:hover{color:var(--pd-cyan)}
.pd-crumbs .sep{color:var(--pd-dim)}
.pd-crumbs .pd-crumb-current{color:var(--pd-muted);max-width:70%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pd-article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:44px;justify-content:center;align-items:start}
.pd-article-main{min-width:0}
.pd-article-head{margin-bottom:26px}
.pd-article-head h1{font-size:32px;line-height:1.35;letter-spacing:.01em}
.pd-article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13px;color:var(--pd-dim);margin-top:16px;font-variant-numeric:tabular-nums}
.pd-chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.04em;padding:3px 10px;border-radius:999px;background:var(--pd-cyan-soft);color:var(--pd-cyan);border:1px solid rgba(47,230,200,.25)}
.pd-chip-red{background:var(--pd-primary-soft);color:#FF8C82;border-color:rgba(245,72,60,.3)}
.pd-article-summary{margin-top:22px;padding:14px 18px;background:var(--pd-cyan-soft);border-left:3px solid var(--pd-cyan);border-radius:0 10px 10px 0;color:var(--pd-muted);font-size:15px;line-height:1.8}

/* ---------- article body ---------- */
.pd-article-content{
  max-width:760px;background:var(--pd-panel);border:1px solid var(--pd-line);
  border-radius:var(--pd-radius);padding:34px 36px;box-shadow:var(--pd-shadow);
  font-size:16px;line-height:1.9;color:var(--pd-text);word-break:normal;overflow-wrap:break-word;
}
.pd-article-content h1,.pd-article-content h2{font-size:22px;line-height:1.6;margin:34px 0 14px;position:relative;padding-left:14px}
.pd-article-content h1:first-child,.pd-article-content h2:first-child{margin-top:0}
.pd-article-content h1::before,.pd-article-content h2::before{content:"";position:absolute;left:0;top:.4em;width:3px;height:17px;background:var(--pd-primary);border-radius:2px}
.pd-article-content h3{font-size:18px;line-height:1.6;margin:26px 0 10px}
.pd-article-content h4{font-size:16px;line-height:1.6;margin:22px 0 8px;color:var(--pd-text)}
.pd-article-content p{margin:0 0 20px;font-size:16px;line-height:1.9}
.pd-article-content ul,.pd-article-content ol{margin:0 0 20px;padding-left:24px}
.pd-article-content li{margin-bottom:8px;line-height:1.9}
.pd-article-content ul>li::marker{color:var(--pd-primary)}
.pd-article-content ol>li::marker{color:var(--pd-primary);font-variant-numeric:tabular-nums}
.pd-article-content blockquote{margin:24px 0;padding:16px 20px;background:var(--pd-cyan-soft);border-left:3px solid var(--pd-cyan);border-radius:0 10px 10px 0;color:var(--pd-text)}
.pd-article-content blockquote p:last-child{margin-bottom:0}
.pd-article-content a{color:var(--pd-cyan);text-decoration:underline;text-underline-offset:3px}
.pd-article-content a:hover{color:var(--pd-cyan-hover)}
.pd-article-content img{border-radius:12px;margin:10px 0 8px}
.pd-article-content figcaption{font-size:13px;color:var(--pd-dim);text-align:center;margin-bottom:22px}
.pd-article-content table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;font-variant-numeric:tabular-nums}
.pd-article-content thead th{background:var(--pd-raised);color:#fff;font-weight:600}
.pd-article-content th,.pd-article-content td{padding:10px 12px;border:1px solid var(--pd-line);text-align:left;line-height:1.7}
.pd-article-content tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.pd-article-content code{background:var(--pd-raised);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--pd-cyan)}
.pd-article-content pre{background:var(--pd-raised);border:1px solid var(--pd-line);border-radius:12px;padding:16px;overflow-x:auto;margin:0 0 22px}
.pd-article-content pre code{background:transparent;padding:0}
.pd-article-content hr{border:none;border-top:1px solid var(--pd-line);margin:30px 0}

/* ---------- sidebar ---------- */
.pd-article-side{position:sticky;top:84px;display:flex;flex-direction:column;gap:16px;min-width:0}
.pd-side-card{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:18px 20px;min-width:0}
.pd-side-card h3{font-size:14px;letter-spacing:.04em;color:var(--pd-muted);margin-bottom:12px;font-weight:600}
.pd-side-card p{font-size:13px;color:var(--pd-dim);line-height:1.75;margin-bottom:12px}
.pd-toc{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.pd-toc a{font-size:14px;color:var(--pd-muted);display:block;padding-left:10px;border-left:2px solid transparent;line-height:1.6;transition:all .2s ease}
.pd-toc a:hover{color:var(--pd-cyan);border-left-color:var(--pd-cyan)}

/* ---------- empty ---------- */
.pd-empty{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:56px 28px;text-align:center;box-shadow:var(--pd-shadow)}
.pd-empty h1{font-size:26px;line-height:1.4}
.pd-empty p{color:var(--pd-muted);font-size:15px;margin:14px auto 24px;max-width:520px}

/* ---------- download ---------- */
.pd-download{padding:80px 0;background:var(--pd-panel);border-top:1px solid var(--pd-line);border-bottom:1px solid var(--pd-line)}
.pd-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:30px}
.pd-dl-card{background:var(--pd-raised);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:22px;display:flex;flex-direction:column;gap:10px;min-width:0;transition:all .2s ease}
.pd-dl-card:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-dl-card h3{font-size:17px;line-height:1.5}
.pd-dl-card p{font-size:14px;color:var(--pd-muted);line-height:1.75;flex:1;margin:0}
.pd-dl-tag{align-self:flex-start;font-size:12px;letter-spacing:.04em;padding:2px 10px;border-radius:999px;background:var(--pd-primary-soft);color:#FF8C82;font-variant-numeric:tabular-nums}
.pd-dl-note{font-size:13px;color:var(--pd-dim);margin-top:18px}

/* ---------- info blocks ---------- */
.pd-info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:30px}
.pd-info-card{background:var(--pd-raised);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:22px;min-width:0;transition:all .2s ease}
.pd-info-card:hover{border-color:rgba(47,230,200,.3);transform:translateY(-2px)}
.pd-info-card h3{font-size:16px;line-height:1.6;margin-bottom:8px}
.pd-info-card p{font-size:14px;color:var(--pd-muted);line-height:1.8;margin:0}
.pd-terms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px;margin-top:26px}
.pd-term{border-bottom:1px dashed rgba(255,255,255,.08);padding-bottom:12px;min-width:0}
.pd-term dt{font-size:15px;color:#fff;font-weight:600;margin-bottom:4px}
.pd-term dd{margin:0;font-size:14px;color:var(--pd-muted);line-height:1.8}

/* ---------- risk ---------- */
.pd-risk-block{background:rgba(245,72,60,.10);border-left:3px solid var(--pd-primary);border-radius:0 var(--pd-radius) var(--pd-radius) 0;padding:24px 26px;margin-top:28px}
.pd-risk-block ul{margin:0;padding-left:20px}
.pd-risk-block li{font-size:15px;color:var(--pd-text);line-height:1.85;margin-bottom:10px}
.pd-risk-block li:last-child{margin-bottom:0}
.pd-risk-block li::marker{color:var(--pd-primary)}

/* ---------- related ---------- */
.pd-rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:30px}
.pd-rel-card{display:flex;flex-direction:column;gap:8px;background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:22px;min-width:0;transition:all .2s ease;color:var(--pd-text)}
.pd-rel-card:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow);color:var(--pd-text)}
.pd-rel-card h3{font-size:16px;line-height:1.6}
.pd-rel-card p{font-size:14px;color:var(--pd-muted);line-height:1.75;margin:0;flex:1}
.pd-rel-more{font-size:14px;color:var(--pd-cyan);display:inline-flex;align-items:center;gap:6px}
.pd-disclaimer{font-size:13px;color:var(--pd-dim);line-height:1.8;border-top:1px solid var(--pd-line);padding-top:18px;margin-top:36px}

/* ---------- footer ---------- */
.pd-footer{background:var(--pd-panel);border-top:1px solid var(--pd-line);padding:64px 0 26px}
.pd-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px}
.pd-footer h3{font-size:15px;color:#fff;margin:0 0 14px;font-weight:700;line-height:1.5}
.pd-footer p{color:var(--pd-muted);font-size:14px;line-height:1.8;margin:0 0 10px}
.pd-footer .pd-risk{color:var(--pd-dim);font-size:13px;margin-bottom:0}
.pd-footer-links{display:flex;flex-direction:column;gap:10px}
.pd-footer-links a{color:var(--pd-muted);font-size:14px;line-height:1.6}
.pd-footer-links a:hover{color:var(--pd-cyan)}
.pd-friend{margin-top:40px;padding-top:24px;border-top:1px solid var(--pd-line)}
.pd-friend h3{font-size:14px;letter-spacing:.04em;color:var(--pd-muted);margin-bottom:12px}
.pd-friend-list{display:flex;flex-wrap:wrap;gap:10px 18px;min-height:1px}
.pd-friend-list a{font-size:13px;color:var(--pd-dim);line-height:1.6}
.pd-friend-list a:hover{color:var(--pd-cyan)}
.pd-footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:28px;padding-top:18px;border-top:1px solid var(--pd-line);color:var(--pd-dim);font-size:13px;line-height:1.6}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .pd-article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:32px}
  .pd-section{padding:80px 0}
}
@media (max-width:991px){
  .pd-mainnav{display:none}
  .pd-menu-btn{display:inline-flex}
  .pd-header-inner{height:60px;gap:12px}
  .pd-header-actions .pd-btn{display:none}
  .pd-mobile-panel{position:fixed;left:0;right:0;top:60px;bottom:0;background:var(--pd-bg);border-top:1px solid var(--pd-line);padding:16px 20px 120px;overflow-y:auto;z-index:1029;display:none}
  .pd-mobile-panel.is-open{display:block}
  .pd-mobile-link{display:flex;align-items:center;height:52px;padding:0 6px;color:var(--pd-muted);font-size:16px;border-bottom:1px solid var(--pd-line)}
  .pd-mobile-link:hover,.pd-mobile-link:focus{color:#fff}
  .pd-article-layout{grid-template-columns:minmax(0,1fr);gap:26px}
  .pd-article-side{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .pd-article-head h1{font-size:27px}
  .pd-article-content{padding:26px 22px}
  .pd-dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .pd-section{padding:72px 0}
  .pd-section-head h2{font-size:24px}
}
@media (max-width:767px){
  .pd-container{padding-left:16px;padding-right:16px}
  .pd-article-wrap{padding:24px 0 56px}
  .pd-article-head h1{font-size:23px;line-height:1.4}
  .pd-article-content{padding:22px 18px;border-radius:12px}
  .pd-article-content h1,.pd-article-content h2{font-size:19px}
  .pd-article-content h3{font-size:17px}
  .pd-article-side{grid-template-columns:minmax(0,1fr)}
  .pd-info-grid,.pd-terms,.pd-dl-grid,.pd-rel-grid{grid-template-columns:minmax(0,1fr)}
  .pd-crumbs .pd-crumb-current{max-width:60%}
  .pd-download{padding:56px 0}
  .pd-risk-block{padding:18px 18px}
  .pd-footer{padding:48px 0 22px}
  .pd-footer-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .pd-footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .pd-brand-text strong{font-size:15px}
}
@media (max-width:400px){
  .pd-brand-text em{display:none}
  .pd-article-content{padding:18px 14px}
  .pd-section-head h2{font-size:21px}
}

/* roulang page: category1 */
:root{
  --pd-bg:#0D0F12;
  --pd-panel:#14181D;
  --pd-raised:#1B2027;
  --pd-line:rgba(255,255,255,.08);
  --pd-line-strong:rgba(255,255,255,.14);
  --pd-primary:#F5483C;
  --pd-primary-hover:#FF6154;
  --pd-primary-active:#D63A2F;
  --pd-primary-soft:rgba(245,72,60,.12);
  --pd-cyan:#2FE6C8;
  --pd-cyan-hover:#55F1D6;
  --pd-cyan-soft:rgba(47,230,200,.12);
  --pd-text:#E9ECEF;
  --pd-muted:#A6AFB8;
  --pd-dim:#6E7883;
  --pd-radius:14px;
  --pd-radius-sm:10px;
  --pd-shadow:0 6px 24px rgba(0,0,0,.45);
  --pd-shadow-lg:0 16px 48px rgba(0,0,0,.55);

  --bs-primary:#F5483C;
  --bs-body-bg:#0D0F12;
  --bs-body-color:#E9ECEF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:14px;
  --bs-link-color:#2FE6C8;
  --bs-link-hover-color:#55F1D6;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--pd-bg);
  color:var(--pd-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:clip;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--pd-cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--pd-cyan-hover)}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--pd-cyan);
  outline-offset:2px;
}
.pd-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
/* ---------- header ---------- */
.pd-header{position:sticky;top:0;z-index:1030;background:rgba(13,15,18,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--pd-line);transition:box-shadow .2s ease}
.pd-header.is-scrolled{box-shadow:0 10px 30px rgba(0,0,0,.55)}
.pd-header-inner{display:flex;align-items:center;gap:18px;height:64px}
.pd-brand{display:flex;align-items:center;gap:10px;min-width:0;flex-shrink:0}
.pd-brand-mark{width:34px;height:34px;border-radius:9px;background:var(--pd-primary);color:#fff;font-weight:700;font-size:18px;display:flex;align-items:center;justify-content:center;line-height:1;box-shadow:0 0 0 1px rgba(245,72,60,.4),0 0 16px rgba(245,72,60,.25)}
.pd-brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.pd-brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap}
.pd-brand-text em{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--pd-cyan);white-space:nowrap}
.pd-mainnav{display:flex;align-items:center;margin-left:12px;min-width:0}
.pd-navlink{position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;color:var(--pd-muted);font-size:15px;white-space:nowrap}
.pd-navlink::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--pd-cyan);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;box-shadow:0 0 10px rgba(47,230,200,.6)}
.pd-navlink:hover,.pd-navlink:focus{color:#fff}
.pd-navlink:hover::after,.pd-navlink:focus::after{transform:scaleX(1)}
.pd-navlink.is-active{color:#fff;text-shadow:0 0 12px rgba(47,230,200,.35)}
.pd-navlink.is-active::after{transform:scaleX(1)}
.pd-header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.pd-menu-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:44px;height:44px;border:1px solid var(--pd-line-strong);border-radius:10px;background:transparent;cursor:pointer;transition:border-color .2s ease}
.pd-menu-toggle:hover{border-color:var(--pd-cyan)}
.pd-menu-toggle span{display:block;width:18px;height:2px;background:var(--pd-text);margin:0 auto;border-radius:2px}
/* ---------- offcanvas ---------- */
.pd-offcanvas{background:var(--pd-bg);color:var(--pd-text);border-left:1px solid var(--pd-line);max-width:86vw}
.pd-offcanvas .offcanvas-header{border-bottom:1px solid var(--pd-line);padding:16px 20px}
.pd-offcanvas-title{font-size:16px;font-weight:700;color:#fff}
.pd-offcanvas-close{background:transparent;border:1px solid var(--pd-line-strong);color:var(--pd-text);width:36px;height:36px;border-radius:9px;font-size:18px;line-height:1;cursor:pointer}
.pd-offcanvas .offcanvas-body{display:flex;flex-direction:column;padding:12px 20px}
.pd-offcanvas .offcanvas-body a{display:flex;align-items:center;min-height:52px;font-size:15px;color:var(--pd-muted);border-bottom:1px solid var(--pd-line)}
.pd-offcanvas .offcanvas-body a.is-active{color:#fff}
.pd-offcanvas-foot{padding:16px 20px;border-top:1px solid var(--pd-line)}
/* ---------- buttons ---------- */
.pd-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--pd-radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .2s ease;line-height:1.4;text-align:center}
.pd-btn-primary{background:var(--pd-primary);color:#fff;border-color:var(--pd-primary)}
.pd-btn-primary:hover{background:var(--pd-primary-hover);color:#fff;border-color:var(--pd-primary-hover);box-shadow:0 0 0 1px rgba(47,230,200,.35),0 0 18px rgba(47,230,200,.25);transform:translateY(-2px)}
.pd-btn-primary:active{background:var(--pd-primary-active);transform:translateY(0);box-shadow:none}
.pd-btn-ghost{background:transparent;color:var(--pd-text);border-color:#2A3138}
.pd-btn-ghost:hover{color:#fff;border-color:var(--pd-cyan);transform:translateY(-2px)}
.pd-btn-sm{padding:9px 16px;font-size:14px}
.pd-btn-block{width:100%}
.pd-textlink .pd-arrow{transition:transform .2s ease}
.pd-textlink:hover .pd-arrow{transform:translateX(2px)}
/* ---------- sections ---------- */
.pd-section{padding:96px 0;position:relative}
.pd-section-alt{background:var(--pd-panel);border-top:1px solid var(--pd-line);border-bottom:1px solid var(--pd-line)}
.pd-section-head{max-width:820px;margin-bottom:32px}
.pd-h2{position:relative;padding-left:14px;font-size:28px;line-height:1.4;font-weight:700;color:#fff;margin:0}
.pd-h2::before{content:"";position:absolute;left:0;top:7px;width:3px;height:18px;background:var(--pd-primary);border-radius:2px}
.pd-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.04em;color:var(--pd-cyan);background:var(--pd-cyan-soft);border:1px solid rgba(47,230,200,.28);padding:3px 10px;border-radius:999px;margin-bottom:14px}
.pd-lead{color:var(--pd-muted);font-size:15px;line-height:1.85;margin:14px 0 0;max-width:800px}
.pd-note{font-size:13px;color:var(--pd-dim);margin-top:18px}
/* ---------- category head ---------- */
.pd-cathead{padding:34px 0 30px;background:var(--pd-bg);border-bottom:1px solid var(--pd-line)}
.pd-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--pd-dim);margin-bottom:14px}
.pd-crumb a{color:var(--pd-muted)}
.pd-crumb a:hover{color:var(--pd-cyan)}
.pd-crumb .pd-crumb-sep{color:var(--pd-dim)}
.pd-crumb .pd-crumb-now{color:var(--pd-text)}
.pd-cathead-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.pd-cathead h1{font-size:32px;line-height:1.32;font-weight:700;color:#fff;margin:0;letter-spacing:.01em}
.pd-cathead-lead{color:var(--pd-muted);font-size:15px;line-height:1.85;margin:12px 0 0;max-width:720px}
.pd-cathead-filter{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:16px;display:flex;flex-direction:column;gap:6px}
.pd-cathead-filter .pd-filter-label{font-size:12px;letter-spacing:.04em;color:var(--pd-dim);margin-top:6px}
.pd-cathead-filter .pd-filter-label:first-child{margin-top:0}
.pd-select{width:100%;background:var(--pd-raised);color:var(--pd-text);border:1px solid var(--pd-line-strong);border-radius:10px;padding:9px 12px;font-size:14px;transition:border-color .2s ease,box-shadow .2s ease;appearance:none}
.pd-select:focus{outline:none;border-color:var(--pd-cyan);box-shadow:0 0 0 1px rgba(47,230,200,.35)}
/* ---------- rank list ---------- */
.pd-rank-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start}
.pd-rank-main{min-width:0}
.pd-rank-side{display:flex;flex-direction:column;gap:16px;position:sticky;top:84px;min-width:0}
.pd-ranklist{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.pd-rankrow{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr) repeat(3,minmax(0,104px));gap:16px;align-items:center;padding:16px 18px;background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.pd-rankrow::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;background:var(--pd-cyan);opacity:0;transition:opacity .2s ease,box-shadow .2s ease}
.pd-rankrow:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-rankrow:hover::before{opacity:1;box-shadow:0 0 10px rgba(47,230,200,.5)}
.pd-rankno{width:32px;height:32px;border-radius:8px;background:var(--pd-raised);color:var(--pd-muted);display:flex;align-items:center;justify-content:center;font-size:13px;font-variant-numeric:tabular-nums;font-weight:600}
.pd-rankrow:nth-child(-n+3) .pd-rankno{background:var(--pd-primary-soft);color:var(--pd-primary);border:1px solid rgba(245,72,60,.35)}
.pd-rank-name{min-width:0}
.pd-rank-name h3{font-size:17px;font-weight:600;color:#fff;margin:0 0 4px;line-height:1.5}
.pd-rank-name p{font-size:13px;color:var(--pd-dim);margin:0;line-height:1.7}
.pd-rank-metric{min-width:0;font-variant-numeric:tabular-nums}
.pd-rank-metric span{display:block;font-size:12px;letter-spacing:.04em;color:var(--pd-dim)}
.pd-rank-metric strong{display:block;font-size:14px;font-weight:600;color:var(--pd-text);margin-top:2px;line-height:1.6}
/* ---------- side cards ---------- */
.pd-side-card{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:20px}
.pd-side-card h3{position:relative;padding-left:11px;font-size:16px;font-weight:700;color:#fff;margin:0 0 14px}
.pd-side-card h3::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;background:var(--pd-primary);border-radius:2px}
.pd-side-form{display:flex;flex-direction:column;gap:10px}
.pd-side-form fieldset{border:0;padding:0;margin:0}
.pd-side-form legend{font-size:12px;letter-spacing:.04em;color:var(--pd-dim);padding:0;margin-bottom:4px}
.pd-input{width:100%;background:var(--pd-raised);border:1px solid var(--pd-line-strong);border-radius:10px;color:var(--pd-text);padding:10px 12px;font-size:14px;transition:border-color .2s ease,box-shadow .2s ease}
.pd-input::placeholder{color:var(--pd-dim)}
.pd-input:focus{outline:none;border-color:var(--pd-cyan);box-shadow:0 0 0 1px rgba(47,230,200,.35)}
.pd-check{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--pd-muted);padding:6px 0;cursor:pointer;min-height:32px}
.pd-check input{width:16px;height:16px;accent-color:var(--pd-primary);flex-shrink:0}
.pd-side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.pd-side-list li{position:relative;padding-left:14px;font-size:13px;color:var(--pd-muted);line-height:1.75}
.pd-side-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--pd-cyan)}
/* ---------- dimension cards ---------- */
.pd-dim-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.pd-dim-card{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:22px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;min-width:0}
.pd-dim-card:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-dim-card h3{font-size:17px;font-weight:600;color:#fff;margin:0 0 8px}
.pd-dim-card p{font-size:14px;color:var(--pd-muted);margin:0;line-height:1.8}
.pd-tag{display:inline-block;font-size:12px;letter-spacing:.04em;padding:2px 10px;border-radius:999px;background:var(--pd-cyan-soft);color:var(--pd-cyan);margin-bottom:10px}
/* ---------- fee strip ---------- */
.pd-fee-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.pd-fee-item{border:1px solid var(--pd-line);border-radius:var(--pd-radius-sm);padding:18px;background:var(--pd-panel);margin:0;min-width:0}
.pd-fee-item dt{font-size:12px;letter-spacing:.04em;color:var(--pd-cyan)}
.pd-fee-item dd{margin:8px 0 0;font-size:14px;line-height:1.75;color:var(--pd-text);font-variant-numeric:tabular-nums}
/* ---------- myth ---------- */
.pd-myth-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.pd-myth{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:20px;min-width:0}
.pd-myth-wrong{padding-left:12px;border-left:3px solid var(--pd-primary);font-size:14px;color:var(--pd-muted);line-height:1.8}
.pd-myth-wrong b{color:#fff;font-weight:600}
.pd-myth-right{padding-left:12px;border-left:3px solid var(--pd-cyan);font-size:14px;color:var(--pd-text);line-height:1.8;margin-top:14px}
/* ---------- terms ---------- */
.pd-term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 36px}
.pd-term{padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.08);margin:0;min-width:0}
.pd-term dt{font-size:15px;font-weight:600;color:#fff}
.pd-term dd{margin:6px 0 0;font-size:14px;color:var(--pd-muted);line-height:1.8}
/* ---------- risk ---------- */
.pd-riskbox{background:var(--pd-primary-soft);border-left:3px solid var(--pd-primary);border-radius:0 var(--pd-radius-sm) var(--pd-radius-sm) 0;padding:22px 24px}
.pd-riskbox h2{font-size:20px;color:#fff;margin:0;font-weight:700}
.pd-riskbox ul{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-direction:column;gap:10px}
.pd-riskbox li{position:relative;padding-left:16px;font-size:14px;color:var(--pd-muted);line-height:1.8}
.pd-riskbox li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--pd-primary)}
/* ---------- news ---------- */
.pd-news-list{display:flex;flex-direction:column;gap:12px}
.pd-news-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;padding:16px 18px;background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.pd-news-item:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-news-text{min-width:0}
.pd-news-text h3{font-size:16px;font-weight:600;color:#fff;margin:0 0 6px;line-height:1.6;transition:color .2s ease}
.pd-news-item:hover .pd-news-text h3{color:var(--pd-cyan)}
.pd-news-text p{font-size:13px;color:var(--pd-dim);margin:0;line-height:1.7}
.pd-news-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}
.pd-news-meta .pd-tag{margin-bottom:0}
.pd-news-meta time{font-size:12px;color:var(--pd-dim);font-variant-numeric:tabular-nums;white-space:nowrap}
.pd-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:220px;background:var(--pd-panel);border:1px dashed var(--pd-line-strong);border-radius:var(--pd-radius);padding:32px 20px;text-align:center}
.pd-empty-icon{width:48px;height:48px;border-radius:12px;border:2px solid var(--pd-line-strong);display:flex;align-items:center;justify-content:center;color:var(--pd-dim);font-size:22px}
.pd-empty p{margin:0;font-size:14px;color:var(--pd-muted)}
/* ---------- download ---------- */
.pd-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.pd-dl-card{background:var(--pd-panel);border:1px solid var(--pd-line);border-radius:var(--pd-radius);padding:24px;display:flex;flex-direction:column;gap:14px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;min-width:0}
.pd-dl-card:hover{border-color:rgba(47,230,200,.35);transform:translateY(-2px);box-shadow:var(--pd-shadow)}
.pd-dl-card h3{font-size:18px;font-weight:700;color:#fff;margin:0}
.pd-dl-card p{font-size:14px;color:var(--pd-muted);margin:0;line-height:1.8}
.pd-dl-file{align-self:flex-start;font-size:12px;letter-spacing:.06em;padding:3px 10px;border-radius:999px;background:var(--pd-raised);border:1px solid var(--pd-line-strong);color:var(--pd-cyan);font-variant-numeric:tabular-nums}
.pd-dl-card .pd-btn{margin-top:auto}
/* ---------- footer ---------- */
.pd-footer{background:var(--pd-panel);border-top:1px solid var(--pd-line);padding:56px 0 24px}
.pd-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.pd-footer h3{font-size:15px;font-weight:700;color:#fff;margin:0 0 12px}
.pd-footer p{font-size:13px;color:var(--pd-muted);line-height:1.85;margin:0 0 10px}
.pd-footer .pd-risk{color:var(--pd-dim);margin-bottom:0}
.pd-footer-links{display:flex;flex-direction:column;gap:8px}
.pd-footer-links a{font-size:13px;color:var(--pd-muted)}
.pd-footer-links a:hover{color:var(--pd-cyan)}
.pd-friend{margin-top:36px;padding-top:24px;border-top:1px solid var(--pd-line)}
.pd-friend h3{font-size:14px;font-weight:700;color:#fff;margin:0 0 12px}
.pd-friend-list{display:flex;flex-wrap:wrap;gap:10px 18px}
.pd-friend-list a{font-size:13px;color:var(--pd-muted)}
.pd-friend-list a:hover{color:var(--pd-cyan)}
.pd-footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:24px;padding-top:18px;border-top:1px solid var(--pd-line);font-size:12px;color:var(--pd-dim)}
/* ---------- responsive ---------- */
@media (max-width:1100px){
  .pd-rankrow{grid-template-columns:40px minmax(0,1fr) repeat(3,minmax(0,92px));gap:12px}
}
@media (max-width:991px){
  .pd-mainnav{display:none}
  .pd-header-actions .pd-btn{display:none}
  .pd-menu-toggle{display:flex}
  .pd-header-inner{gap:12px}
  .pd-section{padding:72px 0}
  .pd-cathead-grid{grid-template-columns:minmax(0,1fr);gap:20px}
  .pd-cathead h1{font-size:28px}
  .pd-rank-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .pd-rank-side{position:static}
  .pd-dim-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-fee-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pd-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:820px){
  .pd-rankrow{grid-template-columns:36px minmax(0,1fr);gap:10px 12px;padding:16px}
  .pd-rank-metric{grid-column:2}
  .pd-rank-metric span,.pd-rank-metric strong{display:inline}
  .pd-rank-metric span{margin-right:6px}
  .pd-news-item{grid-template-columns:minmax(0,1fr);gap:10px}
  .pd-news-meta{flex-direction:row;align-items:center;justify-content:flex-start;gap:10px}
  .pd-dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .pd-section{padding:56px 0}
  .pd-cathead{padding:26px 0 24px}
  .pd-cathead h1{font-size:25px}
  .pd-h2{font-size:23px}
  .pd-h2::before{top:5px;height:16px}
  .pd-dim-grid{grid-template-columns:minmax(0,1fr)}
  .pd-myth-grid{grid-template-columns:minmax(0,1fr)}
  .pd-term-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .pd-container{padding-left:18px;padding-right:18px}
}
@media (max-width:560px){
  .pd-brand-text strong{font-size:15px}
  .pd-section{padding:44px 0}
  .pd-fee-strip{grid-template-columns:minmax(0,1fr)}
  .pd-dl-grid{grid-template-columns:minmax(0,1fr)}
  .pd-footer-grid{grid-template-columns:minmax(0,1fr)}
  .pd-hero-actions .pd-btn,.pd-dl-card .pd-btn{width:100%}
  .pd-riskbox{padding:18px}
  .pd-footer{padding:40px 0 20px}
}