/* roulang page: index */
:root{
  --ink:#0f1c1e;
  --ink-soft:#2c3d3f;
  --brand:#0f7a68;
  --brand-dark:#0a5a4d;
  --brand-light:#e3f2ee;
  --accent:#c2782a;
  --bg:#f5f7f4;
  --panel:#ffffff;
  --line:#dfe6e1;
  --muted:#61726f;
  --radius:16px;
  --shadow:0 14px 36px rgba(15,28,30,.08);
  --shadow-sm:0 2px 10px rgba(15,28,30,.05);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#0e1b1d;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar{display:flex;align-items:center;gap:18px;min-height:68px;position:relative}
.logo{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(140deg,#12a08a,#0a5a4d);display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;box-shadow:0 4px 12px rgba(18,160,138,.32)}
.logo-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.logo-name{font-size:16px;font-weight:700;letter-spacing:.5px}
.logo-sub{font-size:11px;color:#8fb3ad;letter-spacing:.6px;white-space:nowrap}
.nav{display:flex;gap:4px;align-items:center}
.nav a{padding:8px 14px;border-radius:9px;color:#c8dad6;font-size:14.5px;transition:background .2s,color .2s}
.nav a:hover,.nav a:focus{background:rgba(255,255,255,.08);color:#fff}
.nav a.active{background:rgba(18,160,138,.2);color:#5fe0c8}
.quick-search{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:flex;align-items:center}
.search-box .s-ico{position:absolute;left:11px;color:#7fa8a1;font-size:14px;line-height:1;pointer-events:none}
.search-box input{
  width:196px;padding:8px 12px 8px 32px;border-radius:9px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);
  color:#eaf5f2;font-size:13.5px;outline:none;transition:border-color .2s,background .2s,width .2s;
}
.search-box input::placeholder{color:#7fa8a1}
.search-box input:focus{border-color:#12a08a;background:rgba(255,255,255,.1);width:230px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:38px;border-radius:9px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#eaf5f2;cursor:pointer;font-size:16px;margin-left:auto;transition:background .2s}
.nav-toggle:hover{background:rgba(255,255,255,.14)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:600;font-size:14.5px;border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,transform .2s,box-shadow .2s,border-color .2s}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(15,122,104,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(15,122,104,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-light{background:#fff;color:#0e1b1d}
.btn-light:hover{background:#eaf5f2;transform:translateY(-1px)}
.btn-outline-light{background:rgba(255,255,255,.06);color:#eaf5f2;border-color:rgba(255,255,255,.26)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4)}
.btn-sm{padding:8px 15px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(1100px 460px at 12% -20%, rgba(18,160,138,.3), transparent 62%),
    linear-gradient(158deg,#0e1b1d 0%,#12262a 56%,#0d1f22 100%);
  color:#eaf5f2;padding:52px 0 60px;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:42px;align-items:start}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;background:rgba(18,160,138,.16);color:#5fe0c8;font-size:13px;border:1px solid rgba(95,224,200,.26);letter-spacing:.4px}
.hero h1{font-size:clamp(26px,3.1vw,39px);line-height:1.32;margin:16px 0 16px;letter-spacing:.4px;font-weight:700}
.hero-lead{margin:0 0 26px;font-size:15.5px;color:#b9d2cd;max-width:44em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-note{margin:16px 0 0;font-size:12.5px;color:#8fb3ad}

.bento{display:grid;gap:14px}
.panel{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.11);border-radius:14px;padding:17px 18px}
.panel-title{margin:0 0 10px;font-size:12.5px;color:#8fb3ad;letter-spacing:1px}
.status-row{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:#eaf5f2}
.dot{width:9px;height:9px;border-radius:50%;background:#5fe0c8;box-shadow:0 0 0 4px rgba(95,224,200,.15);flex-shrink:0}
.pace-mini{margin:14px 0 0;display:grid;gap:8px;font-size:13.5px;color:#b9d2cd}
.pace-mini li{display:flex;justify-content:space-between;gap:12px;border-top:1px dashed rgba(255,255,255,.12);padding-top:8px}
.pace-mini li:first-child{border-top:0;padding-top:0}
.pace-mini li span:first-child{color:#8fb3ad;font-variant-numeric:tabular-nums}
.bento-two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.mini-text{margin:0;font-size:13.5px;color:#b9d2cd;line-height:1.7}
.mini-link{display:inline-block;margin-top:10px;font-size:13px;color:#5fe0c8;font-weight:600}
.mini-link:hover{color:#9df0e0;text-decoration:underline}

/* ---------- doc layout ---------- */
.doc-layout{display:grid;grid-template-columns:232px minmax(0,1fr);gap:34px;align-items:start;padding-top:36px;padding-bottom:44px}
.doc-side-inner{position:sticky;top:90px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}
.doc-side-title{margin:0 0 4px;font-size:12.5px;color:var(--muted);letter-spacing:1.5px}
.doc-nav{display:grid;gap:2px;margin:10px 0 14px}
.doc-nav a{display:block;padding:7px 10px;border-radius:8px;font-size:14px;color:var(--ink-soft);transition:background .18s,color .18s}
.doc-nav a:hover,.doc-nav a:focus{background:#f0f6f4;color:var(--brand-dark)}

/* ---------- sections ---------- */
.section-block{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;margin-bottom:22px;box-shadow:var(--shadow-sm);min-width:0}
.section-head{margin-bottom:18px}
.section-head h2{font-size:21px;line-height:1.45;margin:0 0 8px;letter-spacing:.3px}
.section-head p{margin:0;font-size:14.5px;color:var(--muted)}
.tag{display:inline-block;padding:3px 11px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:12.5px;font-weight:600;margin-bottom:10px;letter-spacing:.4px}

/* download */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.dl-btn{display:flex;align-items:center;gap:12px;padding:16px;border-radius:13px;border:1px solid var(--line);background:#fbfdfc;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s;min-width:0}
.dl-btn:hover{border-color:#b6d8cf;background:#fff;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.dl-ico{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;font-size:16px;background:var(--brand-light);color:var(--brand-dark);flex-shrink:0}
.dl-btn:nth-child(2) .dl-ico{background:#fbf1e2;color:#a8621f}
.dl-btn:nth-child(3) .dl-ico{background:#e9eef6;color:#3a5170}
.dl-info{display:flex;flex-direction:column;line-height:1.4;min-width:0}
.dl-info strong{font-size:15.5px}
.dl-info span{font-size:12.5px;color:var(--muted);word-break:break-word}
.dl-arrow{margin-left:auto;color:#94a9a4;font-size:15px;flex-shrink:0}
.dl-note{margin:16px 0 0;font-size:13px;color:var(--muted)}

/* timeline */
.timeline{border-left:2px solid #d9e8e3;margin-left:8px}
.tl-item{position:relative;padding:0 0 20px 22px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-7px;top:7px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--brand)}
.tl-time{display:inline-block;font-size:13px;font-weight:700;color:var(--brand-dark);letter-spacing:.3px;font-variant-numeric:tabular-nums}
.tl-item h3{margin:4px 0 6px;font-size:16px}
.tl-item p{margin:0;font-size:14px;color:var(--muted)}

/* feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.feature-card{background:#fbfdfc;border:1px solid var(--line);border-radius:13px;padding:18px 18px 20px;transition:border-color .2s,box-shadow .2s,transform .2s;min-width:0}
.feature-card:hover{border-color:#bcd8d0;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.feature-card h3{margin:0 0 8px;font-size:16px}
.feature-card p{margin:0;font-size:14px;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.step{padding:20px 18px;border-radius:13px;background:linear-gradient(180deg,#f4faf8,#fff);border:1px solid var(--line);min-width:0}
.step-num{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:var(--brand);color:#fff;font-size:13.5px;font-weight:700;margin-bottom:10px}
.step h3{margin:0 0 8px;font-size:16px}
.step p{margin:0;font-size:14px;color:var(--muted)}

/* preview */
.preview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.preview-card{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff;min-width:0}
.preview-visual{position:relative;height:92px;background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(150deg,#0e2b2c,#13594f);background-size:24px 24px,24px 24px,100% 100%}
.preview-tag{position:absolute;left:12px;top:12px;font-size:11.5px;letter-spacing:1px;color:#9df0e0;background:rgba(0,0,0,.28);border:1px solid rgba(157,240,224,.28);border-radius:6px;padding:2px 8px}
.preview-body{padding:15px 16px 18px}
.preview-body h3{margin:0 0 8px;font-size:15.5px}
.preview-body p{margin:0;font-size:13.8px;color:var(--muted)}
.preview-foot{margin:16px 0 0;font-size:12.8px;color:#8a9a97}

/* scenes */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.scene{display:flex;gap:12px;padding:16px;border-radius:13px;background:#f7faf9;border:1px solid var(--line);min-width:0}
.scene-ico{width:34px;height:34px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);color:var(--brand-dark);font-size:14px;font-weight:700}
.scene h3{margin:0 0 5px;font-size:15px}
.scene p{margin:0;font-size:13.6px;color:var(--muted)}

/* compare */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.compare-col{border-radius:13px;padding:18px 20px;border:1px solid var(--line);min-width:0}
.compare-col.before{background:#fbf7f2;border-color:#ecdfcc}
.compare-col.after{background:#f2faf7;border-color:#cfe7de}
.compare-col h3{margin:0 0 4px;font-size:15.5px}
.compare-col .c-sub{margin:0 0 10px;font-size:12.8px;color:#8a9a97}
.clean-list{display:grid;gap:9px;font-size:14px;color:var(--ink-soft)}
.clean-list li{display:flex;gap:9px;align-items:flex-start;line-height:1.65}
.clean-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:#b9c9c5;margin-top:9px;flex-shrink:0}
.compare-col.after .clean-list li::before{background:var(--brand)}

/* channel */
.channel-card{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:22px;align-items:center;background:linear-gradient(120deg,#0f2a2b,#124641);color:#eaf5f2;border-radius:14px;padding:24px 26px}
.channel-card h2{margin:0 0 8px;font-size:19px}
.channel-card p{margin:0;font-size:14px;color:#b9d2cd;max-width:46em}
.channel-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.channel-tags span{font-size:12.5px;padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#cfe6e1}

/* news */
.news-wrap{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,.95fr);gap:22px;align-items:start}
.news-list{display:grid;gap:12px}
.news-item{display:block;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:border-color .2s,box-shadow .2s,transform .2s;min-width:0}
.news-item:hover{border-color:#bcd8d0;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.news-item h3{margin:0 0 6px;font-size:16px;line-height:1.55;word-break:normal;overflow-wrap:anywhere}
.news-item p{margin:0 0 8px;font-size:13.8px;color:var(--muted);overflow-wrap:anywhere}
.news-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12.5px;color:#8a9a97}
.news-empty{margin:0;padding:18px;border:1px dashed var(--line);border-radius:12px;font-size:14px;color:var(--muted);text-align:center}
.search-empty{display:none;margin:8px 0 0;font-size:13.5px;color:var(--accent)}
.side-panel{background:#f8fbfa;border:1px solid var(--line);border-radius:13px;padding:16px 18px;min-width:0}
.side-panel h3{margin:0 0 6px;font-size:15px}
.side-panel .side-sub{margin:0;font-size:12.5px;color:#8a9a97}
.side-item{display:block;padding:11px 0;border-bottom:1px dashed var(--line);transition:color .2s}
.side-item:last-child{border-bottom:0;padding-bottom:0}
.side-item span{display:block;font-size:14px;font-weight:600;color:var(--ink-soft);line-height:1.6;overflow-wrap:anywhere}
.side-item time{font-size:12px;color:#8a9a97}
.side-item:hover span{color:var(--brand-dark)}

/* insight */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.quote{border-left:3px solid var(--brand);background:#f7faf9;padding:16px 18px;border-radius:0 12px 12px 0;min-width:0}
.quote h3{margin:0 0 8px;font-size:15.5px}
.quote p{margin:0;font-size:13.8px;color:var(--muted)}

/* calendar */
.calendar{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.day{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff;min-width:0}
.day-head{font-size:12.5px;color:var(--muted);margin-bottom:10px;letter-spacing:.5px}
.day-tag{display:block;font-size:13px;font-weight:600;color:var(--brand-dark);background:var(--brand-light);border-radius:8px;padding:6px 9px;margin-bottom:8px}
.day p{margin:0;font-size:12.6px;color:var(--muted)}

/* faq */
.faq{display:grid;gap:10px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;padding:0;overflow:hidden;transition:border-color .2s}
.faq-item[open]{border-color:#b6d8cf}
.faq-item summary{list-style:none;cursor:pointer;padding:15px 18px;font-size:15.5px;font-weight:600;display:flex;gap:12px;align-items:center;transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";margin-left:auto;color:var(--brand);font-size:18px;font-weight:600;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--brand-dark)}
.faq-body{padding:0 18px 16px;font-size:14px;color:var(--muted)}

/* risk */
.risk-block{border-radius:14px;border:1px solid #eadfc9;background:#fdf8ee;padding:22px 24px;margin-bottom:22px}
.risk-block h2{margin:0 0 8px;font-size:17px;color:#7a5c27}
.risk-block p{margin:0;font-size:13.8px;color:#6b5a38}

/* cta */
.cta-band{background:linear-gradient(135deg,#0e1b1d,#12433f);color:#eaf5f2;border-radius:16px;padding:30px 32px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;margin-bottom:8px}
.cta-band h2{margin:0 0 8px;font-size:20px}
.cta-band p{margin:0;font-size:14px;color:#b9d2cd;max-width:44em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{background:#0b1517;color:#a9c2bd;padding:44px 0 20px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:30px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:12px}
.footer-brand .logo-mark{width:32px;height:32px;font-size:14px}
.footer-brand strong{font-size:15.5px}
.footer-text{margin:0;font-size:13.5px;line-height:1.85;color:#8fa8a3;max-width:36em}
.footer-col h3{margin:0 0 12px;font-size:14px;color:#dbeae6;letter-spacing:.6px}
.footer-col a{display:block;padding:5px 0;font-size:13.5px;color:#9fbdb7;transition:color .2s}
.footer-col a:hover{color:#fff}
.friend-links{border-top:1px solid rgba(255,255,255,.08);margin-top:28px;padding-top:18px}
.friend-links h3{margin:0 0 12px;font-size:14px;color:#dbeae6;letter-spacing:.6px}
.friend-list{display:flex;flex-wrap:wrap;gap:10px 20px}
.friend-list a{font-size:13.5px;color:#9fbdb7;transition:color .2s}
.friend-list a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:22px;padding-top:16px;font-size:12.5px;color:#7b958f;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media (max-width:1060px){
  .doc-layout{grid-template-columns:200px minmax(0,1fr);gap:26px}
  .hero-grid{gap:32px}
  .search-box input{width:160px}
  .search-box input:focus{width:180px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;background:#0e1b1d;border-bottom:1px solid rgba(255,255,255,.1);padding:10px 16px 14px;box-shadow:0 18px 30px rgba(0,0,0,.35)}
  .nav.is-open{display:flex}
  .nav a{padding:11px 12px}
  .quick-search{margin-left:auto}
  .quick-search .search-box{display:none}
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .doc-layout{grid-template-columns:minmax(0,1fr)}
  .doc-side{display:none}
  .news-wrap{grid-template-columns:minmax(0,1fr)}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:minmax(0,1fr)}
  .preview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-grid{grid-template-columns:minmax(0,1fr)}
  .calendar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-grid{grid-template-columns:minmax(0,1fr)}
  .channel-card{grid-template-columns:minmax(0,1fr)}
  .cta-band{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:22px}
}
@media (max-width:560px){
  .logo-sub{display:none}
  .hero{padding:34px 0 44px}
  .hero-lead{font-size:15px}
  .section-block{padding:20px 18px}
  .section-head h2{font-size:19px}
  .feature-grid,.preview-grid,.scene-grid,.compare,.bento-two,.calendar{grid-template-columns:minmax(0,1fr)}
  .risk-block{padding:18px}
  .cta-band{padding:22px}
  .btn{width:100%}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .quick-search .btn{width:auto}
}

/* roulang page: article */
:root{
  --ink:#0f1c1e;
  --ink-soft:#2c3d3f;
  --brand:#0f7a68;
  --brand-dark:#0a5a4d;
  --brand-light:#e3f2ee;
  --accent:#c2782a;
  --bg:#f5f7f4;
  --panel:#ffffff;
  --line:#dfe6e1;
  --muted:#61726f;
  --radius:16px;
  --shadow:0 14px 36px rgba(15,28,30,.08);
  --shadow-sm:0 2px 10px rgba(15,28,30,.05);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700}
p{margin:0}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#0e1b1d;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar{display:flex;align-items:center;gap:18px;min-height:68px;position:relative}
.logo{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(140deg,#12a08a,#0a5a4d);display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;box-shadow:0 4px 12px rgba(18,160,138,.32)}
.logo-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.logo-name{font-size:16px;font-weight:700;letter-spacing:.5px}
.logo-sub{font-size:11px;color:#8fb3ad;letter-spacing:.6px;white-space:nowrap}
.nav{display:flex;gap:4px;align-items:center}
.nav a{padding:8px 14px;border-radius:9px;color:#c8dad6;font-size:14.5px;transition:background .2s,color .2s}
.nav a:hover,.nav a:focus{background:rgba(255,255,255,.08);color:#fff}
.nav a.active{background:rgba(18,160,138,.2);color:#5fe0c8}
.quick-search{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:flex;align-items:center}
.search-box .s-ico{position:absolute;left:11px;color:#7fa8a1;font-size:14px;line-height:1;pointer-events:none}
.search-box input{
  width:196px;padding:8px 12px 8px 32px;border-radius:9px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);
  color:#eaf5f2;font-size:13.5px;outline:none;transition:border-color .2s,background .2s,width .2s;
}
.search-box input::placeholder{color:#7fa8a1}
.search-box input:focus{border-color:#12a08a;background:rgba(255,255,255,.1);width:230px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:38px;border-radius:9px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#eaf5f2;cursor:pointer;font-size:16px;margin-left:auto;transition:background .2s}
.nav-toggle:hover{background:rgba(255,255,255,.14)}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:600;font-size:14.5px;border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,transform .2s,box-shadow .2s,border-color .2s}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(15,122,104,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(15,122,104,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:#c8ddd6}
.btn-outline:hover{background:var(--brand-light);border-color:#a9cec4;transform:translateY(-1px)}
.btn-sm{padding:8px 15px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}
.btn:focus-visible,.nav a:focus-visible,.side-link:focus-visible{outline:2px solid #5fe0c8;outline-offset:2px}
/* ---------- article hero ---------- */
.article-hero{
  background:
    radial-gradient(900px 380px at 8% -30%, rgba(18,160,138,.32), transparent 62%),
    linear-gradient(150deg,#0e1b1d 0%,#12262a 60%,#0d1f22 100%);
  color:#eaf5f2;
  padding:30px 0 40px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#8fb3ad;margin-bottom:16px}
.breadcrumb a{color:#b9d2cd;transition:color .2s}
.breadcrumb a:hover{color:#5fe0c8}
.breadcrumb .sep{color:#5a7c77}
.breadcrumb .current{color:#7fa8a1}
.article-head h1{font-size:clamp(22px,2.7vw,33px);line-height:1.42;letter-spacing:.4px;margin:14px 0 16px;max-width:32em}
.tag{display:inline-block;padding:3px 11px;border-radius:999px;background:rgba(18,160,138,.2);color:#5fe0c8;font-size:12.5px;font-weight:600;letter-spacing:.4px;border:1px solid rgba(95,224,200,.24)}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px;color:#8fb3ad}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
/* ---------- layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:26px;align-items:start;padding-top:28px;padding-bottom:44px}
.article-main{min-width:0;display:grid;gap:22px}
.article-side{display:grid;gap:18px;position:sticky;top:88px;min-width:0}
/* ---------- blocks ---------- */
.section-block{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 30px;box-shadow:var(--shadow-sm);min-width:0}
.section-head{margin-bottom:18px}
.section-head h2{font-size:20px;line-height:1.45;letter-spacing:.3px;margin-bottom:8px}
.section-head p{font-size:14.5px;color:var(--muted)}
/* ---------- cms content ---------- */
.cms-content{font-size:15.5px;line-height:1.95;color:var(--ink-soft);overflow-wrap:break-word;word-break:normal}
.cms-content > *:first-child{margin-top:0}
.cms-content h2{font-size:20px;color:var(--ink);margin:30px 0 12px;padding-left:12px;border-left:4px solid var(--brand);line-height:1.5}
.cms-content h3{font-size:17px;color:var(--ink);margin:22px 0 10px;line-height:1.55}
.cms-content h4{font-size:15.5px;color:var(--ink);margin:18px 0 8px}
.cms-content p{margin:0 0 14px}
.cms-content ul,.cms-content ol{margin:0 0 16px;padding-left:22px}
.cms-content li{margin-bottom:8px}
.cms-content a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.cms-content a:hover{color:var(--brand)}
.cms-content img{border-radius:12px;margin:18px 0;height:auto}
.cms-content blockquote{margin:18px 0;padding:14px 18px;background:#f2f8f6;border-left:4px solid var(--brand);border-radius:0 10px 10px 0;color:var(--ink-soft)}
.cms-content blockquote p:last-child{margin-bottom:0}
.cms-content table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px;background:#fff}
.cms-content th,.cms-content td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.cms-content th{background:#f2f8f6;color:var(--ink);font-weight:600}
.cms-content hr{border:none;border-top:1px solid var(--line);margin:24px 0}
.cms-content code{background:#eef4f1;padding:2px 6px;border-radius:6px;font-size:13.5px}
/* ---------- empty ---------- */
.empty-state{text-align:center;padding:26px 0 10px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:18px}
/* ---------- concept cards ---------- */
.concept-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.concept-card{background:#fbfdfc;border:1px solid var(--line);border-radius:13px;padding:16px 18px;min-width:0;transition:border-color .2s,box-shadow .2s,transform .2s}
.concept-card:hover{border-color:#b6d8cf;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.concept-card h3{font-size:15.5px;margin-bottom:8px;color:var(--brand-dark);display:flex;align-items:center;gap:8px}
.concept-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex-shrink:0}
.concept-card p{font-size:14px;color:var(--muted);line-height:1.85}
/* ---------- checklist ---------- */
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-soft);background:#fbfdfc;border:1px solid var(--line);border-radius:12px;padding:13px 16px}
.check-list .num{flex:0 0 26px;width:26px;height:26px;border-radius:8px;background:var(--brand-light);color:var(--brand-dark);display:grid;place-items:center;font-size:13px;font-weight:700}
.check-list b{color:var(--ink)}
/* ---------- misread ---------- */
.read-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.read-card{border:1px solid var(--line);border-radius:13px;padding:18px;background:#fff;min-width:0}
.read-card h3{font-size:15px;margin-bottom:8px}
.read-card p{font-size:13.8px;color:var(--muted);line-height:1.85}
.read-card .badge{display:inline-block;font-size:12px;padding:2px 9px;border-radius:999px;background:#fbf1e2;color:#a8621f;margin-bottom:10px;font-weight:600}
/* ---------- download ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.dl-btn{display:flex;align-items:center;gap:12px;padding:15px;border-radius:13px;border:1px solid var(--line);background:#fbfdfc;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s;min-width:0}
.dl-btn:hover{border-color:#b6d8cf;background:#fff;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.dl-ico{flex:0 0 38px;width:38px;height:38px;border-radius:10px;background:var(--brand-light);color:var(--brand-dark);display:grid;place-items:center;font-size:15px;font-weight:700}
.dl-btn:nth-child(2) .dl-ico{background:#fbf1e2;color:#a8621f}
.dl-btn:nth-child(3) .dl-ico{background:#e9eef6;color:#3a5170}
.dl-meta{min-width:0}
.dl-meta strong{display:block;font-size:14.5px;color:var(--ink);line-height:1.4}
.dl-meta span{font-size:12.5px;color:var(--muted)}
.dl-arrow{margin-left:auto;color:#94a9a4;font-size:15px;flex-shrink:0}
/* ---------- side cards ---------- */
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 18px 20px;box-shadow:var(--shadow-sm);min-width:0}
.side-title{font-size:14.5px;margin-bottom:10px;color:var(--ink);display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--brand)}
.side-text{font-size:13.5px;color:var(--muted);line-height:1.85;margin-bottom:14px}
.side-link{display:inline-block;font-size:13.8px;font-weight:600;color:var(--brand-dark);transition:color .2s,transform .2s}
.side-link:hover{color:var(--brand);transform:translateX(2px)}
.side-dl .btn + .btn{margin-top:9px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:13.5px;color:var(--muted)}
.side-list li{display:flex;gap:8px;line-height:1.7}
.side-list li::before{content:"·";color:var(--brand);font-weight:700}
/* ---------- notice ---------- */
.notice-block{background:#f4f8f5;border:1px dashed #c8ddd6;border-radius:var(--radius);padding:22px 26px}
.notice-block h2{font-size:16.5px;margin-bottom:10px;color:var(--ink)}
.notice-block p{font-size:13.8px;color:var(--muted);line-height:1.9}
/* ---------- footer ---------- */
.site-footer{background:#0e1b1d;color:#b9d2cd;padding:46px 0 20px;margin-top:12px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr) minmax(0,1fr);gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:12px}
.footer-brand strong{font-size:14.5px;font-weight:600;line-height:1.6}
.footer-text{font-size:13.5px;line-height:1.9;color:#8fb3ad}
.footer-col h3{font-size:14px;color:#eaf5f2;margin-bottom:12px}
.footer-col a{display:block;font-size:13.5px;color:#9dc0b9;padding:4px 0;transition:color .2s}
.footer-col a:hover{color:#5fe0c8}
.friend-links{margin-top:28px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08)}
.friend-links h3{font-size:14px;color:#eaf5f2;margin-bottom:12px}
.friend-list{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13.5px}
.friend-list a{color:#9dc0b9;transition:color .2s}
.friend-list a:hover{color:#5fe0c8}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:24px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);font-size:12.5px;color:#7fa8a1}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
  .read-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-grid > div:first-child{grid-column:1 / -1}
}
@media (max-width:860px){
  .nav-toggle{display:flex}
  .nav{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:2px;padding:10px 16px 16px;background:#0e1b1d;border-bottom:1px solid rgba(255,255,255,.1);
    box-shadow:0 18px 34px rgba(0,0,0,.34);
  }
  .nav.open{display:flex}
  .nav a{padding:11px 12px}
  .quick-search{display:none}
}
@media (max-width:768px){
  .article-hero{padding:24px 0 32px}
  .section-block{padding:22px 18px}
  .concept-grid{grid-template-columns:minmax(0,1fr)}
  .read-grid{grid-template-columns:minmax(0,1fr)}
  .dl-grid{grid-template-columns:minmax(0,1fr)}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .logo-sub{display:none}
  .cms-content{font-size:15px}
}
@media (max-width:520px){
  .container{padding:0 15px}
  .article-head h1{font-size:21px}
  .check-list li{padding:12px 13px;font-size:14px}
  .dl-meta strong{font-size:14px}
  .footer-bottom{flex-direction:column;gap:4px}
}

/* roulang page: category1 */
:root{
  --ink:#0f1c1e;
  --ink-soft:#2c3d3f;
  --brand:#0f7a68;
  --brand-dark:#0a5a4d;
  --brand-light:#e3f2ee;
  --accent:#c2782a;
  --bg:#f5f7f4;
  --panel:#ffffff;
  --line:#dfe6e1;
  --muted:#61726f;
  --radius:16px;
  --shadow:0 14px 36px rgba(15,28,30,.08);
  --shadow-sm:0 2px 10px rgba(15,28,30,.05);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#0e1b1d;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar{display:flex;align-items:center;gap:18px;min-height:68px;position:relative}
.logo{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(140deg,#12a08a,#0a5a4d);display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;box-shadow:0 4px 12px rgba(18,160,138,.32)}
.logo-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.logo-name{font-size:16px;font-weight:700;letter-spacing:.5px}
.logo-sub{font-size:11px;color:#8fb3ad;letter-spacing:.6px;white-space:nowrap}
.nav{display:flex;gap:4px;align-items:center}
.nav a{padding:8px 14px;border-radius:9px;color:#c8dad6;font-size:14.5px;transition:background .2s,color .2s}
.nav a:hover,.nav a:focus{background:rgba(255,255,255,.08);color:#fff}
.nav a.active{background:rgba(18,160,138,.2);color:#5fe0c8}
.quick-search{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:flex;align-items:center}
.search-box .s-ico{position:absolute;left:11px;color:#7fa8a1;font-size:14px;line-height:1;pointer-events:none}
.search-box input{
  width:196px;padding:8px 12px 8px 32px;border-radius:9px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);
  color:#eaf5f2;font-size:13.5px;outline:none;transition:border-color .2s,background .2s,width .2s;
}
.search-box input::placeholder{color:#7fa8a1}
.search-box input:focus{border-color:#12a08a;background:rgba(255,255,255,.1);width:230px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:38px;border-radius:9px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#eaf5f2;cursor:pointer;font-size:16px;margin-left:auto;transition:background .2s}
.nav-toggle:hover{background:rgba(255,255,255,.14)}
.nav-toggle:focus-visible{outline:2px solid #5fe0c8;outline-offset:2px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:600;font-size:14.5px;border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,transform .2s,box-shadow .2s,border-color .2s}
.btn:focus-visible{outline:2px solid #12a08a;outline-offset:3px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(15,122,104,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(15,122,104,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-light{background:#fff;color:#0e1b1d}
.btn-light:hover{background:#eaf5f2;transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:#bcd9d2}
.btn-outline:hover{background:var(--brand-light);border-color:#8ec6b8;transform:translateY(-1px)}
.btn-outline-light{background:rgba(255,255,255,.06);color:#eaf5f2;border-color:rgba(255,255,255,.26)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4)}
.btn-sm{padding:8px 15px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}

/* ---------- category hero ---------- */
.cat-hero{
  background:
    radial-gradient(1050px 440px at 10% -18%, rgba(18,160,138,.3), transparent 62%),
    linear-gradient(158deg,#0e1b1d 0%,#12262a 58%,#0d1f22 100%);
  color:#eaf5f2;
  padding:44px 0 56px;
}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:#8fb3ad;margin-bottom:20px}
.crumbs a{color:#b9d2cd;transition:color .2s}
.crumbs a:hover{color:#5fe0c8}
.crumbs span.sep{color:#4f6courier}
.crumbs .sep{color:#4f6a67}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:start}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;background:rgba(18,160,138,.16);color:#5fe0c8;font-size:13px;border:1px solid rgba(95,224,200,.26);letter-spacing:.4px}
.cat-hero h1{font-size:clamp(25px,3vw,37px);line-height:1.34;margin:16px 0 16px;letter-spacing:.3px;font-weight:700}
.cat-hero .lead{margin:0 0 24px;font-size:15.5px;color:#b9d2cd;max-width:46em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-note{margin:16px 0 0;font-size:12.5px;color:#8fb3ad}

.compare-board{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:18px;box-shadow:0 18px 40px rgba(0,0,0,.22)}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.compare-head strong{font-size:14px;color:#eaf5f2;letter-spacing:.4px}
.compare-head span{font-size:12px;color:#8fb3ad}
.compare-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.compare-col{border-radius:12px;padding:14px;min-width:0}
.compare-col.before{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1)}
.compare-col.after{background:rgba(18,160,138,.14);border:1px solid rgba(95,224,200,.28)}
.compare-title{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:700;margin:0 0 10px;letter-spacing:.4px}
.compare-col.before .compare-title{color:#a9c1bc}
.compare-col.after .compare-title{color:#5fe0c8}
.compare-list{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.compare-list li{position:relative;padding-left:16px;font-size:13.2px;line-height:1.6;color:#c3d8d3}
.compare-list li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:#4f6a67}
.compare-col.after .compare-list li{color:#e2f4ef}
.compare-col.after .compare-list li::before{background:#5fe0c8}
.compare-foot{margin:14px 0 0;font-size:12px;color:#8fb3ad;line-height:1.6}

/* ---------- page body ---------- */
.page-main{padding:34px 0 10px}
.section-block{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;margin-bottom:22px;box-shadow:var(--shadow-sm);min-width:0}
.section-head{margin-bottom:18px}
.section-head h2{font-size:21px;line-height:1.45;margin:0 0 8px;letter-spacing:.3px}
.section-head p{margin:0;font-size:14.5px;color:var(--muted)}
.tag{display:inline-block;padding:3px 11px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:12.5px;font-weight:600;margin-bottom:10px;letter-spacing:.4px}

/* intro */
.intro-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:26px;align-items:start}
.intro-text p{margin:0 0 14px;font-size:14.8px;color:var(--ink-soft)}
.intro-text p:last-child{margin-bottom:0}
.kpi-panel{background:#f7fbfa;border:1px solid #dcebe6;border-radius:14px;padding:18px}
.kpi-panel h3{margin:0 0 12px;font-size:14px;color:var(--brand-dark);letter-spacing:.4px}
.kpi-row{display:grid;gap:10px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px 14px;transition:border-color .2s,box-shadow .2s,transform .2s}
.kpi:hover{border-color:#b6d8cf;box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.kpi strong{display:block;font-size:14.5px;margin-bottom:3px}
.kpi span{font-size:12.8px;color:var(--muted);line-height:1.6}

/* features */
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.feature-card{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fcfdfc;min-width:0;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s}
.feature-card:hover{border-color:#b6d8cf;background:#fff;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.f-ico{width:40px;height:40px;border-radius:11px;background:var(--brand-light);color:var(--brand-dark);display:grid;place-items:center;font-size:17px;font-weight:700;margin-bottom:12px}
.feature-card h3{margin:0 0 8px;font-size:16.5px;letter-spacing:.2px}
.feature-card p{margin:0 0 10px;font-size:14px;color:var(--muted)}
.feature-card p:last-child{margin-bottom:0}
.f-points{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.f-points li{position:relative;padding-left:15px;font-size:13.4px;color:var(--ink-soft)}
.f-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.55}

/* pace timeline */
.pace-list{position:relative;margin-left:7px;padding-left:24px;border-left:2px solid #e4ece9}
.pace-item{position:relative;padding-bottom:22px}
.pace-item:last-child{padding-bottom:0}
.pace-item::before{content:"";position:absolute;left:-33px;top:7px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--brand)}
.pace-time{display:inline-block;font-size:12.5px;font-weight:700;color:var(--brand-dark);background:var(--brand-light);padding:2px 10px;border-radius:999px;margin-bottom:8px}
.pace-item h3{margin:0 0 6px;font-size:16px}
.pace-item p{margin:0;font-size:14px;color:var(--muted)}

/* check list */
.check-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px}
.check-card{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fbfdfc;min-width:0}
.check-card h3{margin:0 0 12px;font-size:16px}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:14px;color:var(--ink-soft)}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:6px;background:var(--brand-light);color:var(--brand-dark);font-size:12px;display:grid;place-items:center;font-weight:700}
.check-list.warn li::before{content:"!";background:#fbf1e2;color:#a8621f}
.check-note{margin:16px 0 0;padding:12px 14px;border-radius:11px;background:#fbf6ee;border:1px solid #f0e2cc;font-size:13.2px;color:#7c5a2c;line-height:1.7}

/* myth */
.myth-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.myth-card{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff;min-width:0}
.myth-card .wrong{display:block;font-size:13.5px;font-weight:700;color:#a24a34;margin-bottom:8px}
.myth-card .right{display:block;font-size:13.8px;color:var(--ink-soft);line-height:1.7}
.myth-card .right b{color:var(--brand-dark)}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.news-card{display:flex;flex-direction:column;gap:8px;border:1px solid var(--line);border-radius:14px;padding:18px;background:#fcfdfc;min-width:0;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s}
.news-card:hover,.news-card:focus{border-color:#b6d8cf;background:#fff;box-shadow:var(--shadow-sm);transform:translateY(-2px);outline:none}
.news-card:focus-visible{outline:2px solid #12a08a;outline-offset:2px}
.news-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:12.2px;color:var(--muted)}
.news-meta .pill{background:var(--brand-light);color:var(--brand-dark);padding:1px 9px;border-radius:999px;font-weight:600}
.news-card h3{margin:0;font-size:15.8px;line-height:1.55;letter-spacing:.2px}
.news-card p{margin:0;font-size:13.4px;color:var(--muted);line-height:1.65}
.news-more{margin-left:auto;font-size:13px;color:var(--brand-dark);font-weight:600}
.empty-note{margin:0;padding:22px;border:1px dashed var(--line);border-radius:12px;text-align:center;color:var(--muted);font-size:14px;background:#fbfdfc}

/* download */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.dl-btn{display:flex;align-items:center;gap:12px;padding:16px;border-radius:13px;border:1px solid var(--line);background:#fbfdfc;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s;min-width:0}
.dl-btn:hover,.dl-btn:focus{border-color:#b6d8cf;background:#fff;box-shadow:var(--shadow-sm);transform:translateY(-2px);outline:none}
.dl-btn:focus-visible{outline:2px solid #12a08a;outline-offset:2px}
.dl-ico{width:40px;height:40px;border-radius:12px;background:var(--brand-light);color:var(--brand-dark);display:grid;place-items:center;font-size:17px;flex-shrink:0}
.dl-btn:nth-child(2) .dl-ico{background:#fbf1e2;color:#a8621f}
.dl-btn:nth-child(3) .dl-ico{background:#e9eef6;color:#3a5170}
.dl-txt{display:flex;flex-direction:column;min-width:0}
.dl-txt strong{font-size:14.8px;line-height:1.4}
.dl-txt span{font-size:12.5px;color:var(--muted);line-height:1.5}
.dl-arrow{margin-left:auto;color:#94a9a4;font-size:15px;flex-shrink:0}
.dl-note{margin:16px 0 0;font-size:12.8px;color:var(--muted)}

/* faq */
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:13px;background:#fcfdfc;padding:16px 18px;transition:border-color .2s,background .2s}
.faq-item:hover{border-color:#b6d8cf;background:#fff}
.faq-item h3{margin:0 0 7px;font-size:15.6px;line-height:1.6;display:flex;gap:9px}
.faq-item h3 .q{color:var(--brand);font-weight:700;flex-shrink:0}
.faq-item p{margin:0;font-size:14px;color:var(--muted);padding-left:24px}

/* cta band */
.cta-band{background:linear-gradient(150deg,#0f7a68,#0a5a4d);color:#eaf7f4;border-radius:var(--radius);padding:30px 32px;display:flex;align-items:center;gap:24px;flex-wrap:wrap;box-shadow:0 16px 34px rgba(15,122,104,.24);margin-bottom:26px}
.cta-band h2{margin:0 0 6px;font-size:21px;letter-spacing:.3px}
.cta-band p{margin:0;font-size:14px;color:#cdeee7;max-width:56em}
.cta-band .cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#0e1b1d;color:#c8dad6;padding:44px 0 24px;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.7fr) minmax(0,.7fr);gap:32px;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:#fff}
.footer-brand strong{font-size:15px;line-height:1.5}
.footer-text{margin:0;font-size:13.4px;color:#93aeaa;line-height:1.8;max-width:52em}
.footer-col{display:flex;flex-direction:column;gap:9px}
.footer-col h3{margin:0 0 4px;font-size:14px;color:#fff;letter-spacing:.5px}
.footer-col a{font-size:13.6px;color:#a7c2bd;transition:color .2s}
.footer-col a:hover,.footer-col a:focus{color:#5fe0c8}
.friend-links{padding:22px 0 6px;border-bottom:1px solid rgba(255,255,255,.1)}
.friend-links h3{margin:0 0 12px;font-size:14px;color:#fff;letter-spacing:.5px}
.friend-list{display:flex;flex-wrap:wrap;gap:10px 18px}
.friend-list a{font-size:13.4px;color:#a7c2bd;transition:color .2s}
.friend-list a:hover,.friend-list a:focus{color:#5fe0c8}
.footer-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:18px;font-size:12.8px;color:#7d9994}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .intro-grid{grid-template-columns:minmax(0,1fr)}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .myth-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px}
  .search-box input{width:170px}
  .search-box input:focus{width:190px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:2px;background:#102124;border-bottom:1px solid rgba(255,255,255,.1);padding:10px 20px 16px;display:none;box-shadow:0 18px 30px rgba(0,0,0,.28)}
  .nav.open{display:flex}
  .nav a{padding:11px 12px;font-size:15px}
  .quick-search{display:none}
}
@media (max-width:768px){
  .section-block{padding:22px 18px;border-radius:14px}
  .feature-grid{grid-template-columns:minmax(0,1fr)}
  .check-grid{grid-template-columns:minmax(0,1fr)}
  .dl-grid{grid-template-columns:minmax(0,1fr)}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .myth-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:24px 20px;flex-direction:column;align-items:flex-start}
  .cta-band .cta-actions{margin-left:0;width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .compare-cols{grid-template-columns:minmax(0,1fr)}
  .section-head h2{font-size:19.5px}
  .cat-hero{padding:32px 0 42px}
  .cat-hero h1{font-size:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-sub{display:none}
  .hero-actions .btn{width:100%}
  .dl-btn{padding:14px}
  .pace-list{padding-left:18px}
  .pace-item::before{left:-27px}
  .footer-bottom{flex-direction:column;gap:6px}
}