/* roulang page: index */
:root{
  --ink:#0f1f24;
  --ink-2:#28424a;
  --muted:#5f7982;
  --line:#dfe9ec;
  --line-strong:#c8d8dd;
  --bg:#f5f8f9;
  --surface:#ffffff;
  --surface-2:#fbfdfd;
  --brand:#0e6b7a;
  --brand-dark:#0a4f5b;
  --brand-soft:#e5f2f4;
  --accent:#2f8f6b;
  --accent-soft:#e7f5ee;
  --warm:#b8823a;
  --warm-soft:#fbf2e4;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(15,31,36,.05),0 10px 26px -20px rgba(15,31,36,.42);
  --shadow-md:0 2px 4px rgba(15,31,36,.05),0 24px 48px -30px rgba(15,31,36,.42);
  --space:clamp(52px,6.4vw,86px);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink-2);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:-.01em;margin:0 0 14px}
h1{font-size:clamp(27px,4.4vw,44px);line-height:1.24}
h2{font-size:clamp(23px,3vw,33px);line-height:1.3}
h3{font-size:clamp(17px,1.6vw,20px);line-height:1.45}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
strong{color:var(--ink)}
button{font:inherit}
:focus-visible{outline:3px solid rgba(14,107,122,.45);outline-offset:3px;border-radius:6px}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:9999;
  background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 var(--radius-sm) var(--radius-sm);
  transition:top .2s ease;
}
.skip-link:focus{top:0;color:#fff}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}
.section{padding:var(--space) 0}
.section--tight{padding:calc(var(--space) * .68) 0}
.section--surface{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head.center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);background:var(--brand-soft);
  border:1px solid #cfe6ea;border-radius:999px;padding:6px 14px;margin-bottom:16px;
  text-transform:uppercase;
}
.eyebrow i{font-size:11px}
.section-head p{color:var(--muted);margin:0}
.lede{font-size:clamp(15.5px,1.5vw,17.5px);color:#3c5a63;max-width:60ch}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(12px);
  -webkit-backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  width:min(1180px,100% - 40px);margin-inline:auto;
  display:flex;align-items:center;gap:22px;
  min-height:70px;padding:10px 0;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand) 0%,#12828f 100%);
  color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:0 8px 18px -12px rgba(14,107,122,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17.5px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.08em;margin-top:3px}
.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:#3f5c65;
  transition:background .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-link.is-active{color:var(--brand-dark);background:var(--brand-soft)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand);
}
.header-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;font-weight:700;font-size:14px;
  padding:10px 18px;border-radius:999px;
  box-shadow:0 12px 22px -16px rgba(14,107,122,1);
  transition:background .18s ease,transform .18s ease;
}
.header-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.header-cta i{font-size:12px}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  padding:clamp(44px,5.4vw,74px) 0 clamp(40px,5vw,64px);
  background:
    radial-gradient(820px 380px at 90% -20%, #e3f1f3 0%, rgba(227,241,243,0) 72%),
    linear-gradient(180deg,#fcfefe 0%, var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(14,107,122,.10) 1px, transparent 1px);
  background-size:26px 26px;
  mask-image:linear-gradient(120deg, rgba(0,0,0,.55), transparent 62%);
  -webkit-mask-image:linear-gradient(120deg, rgba(0,0,0,.55), transparent 62%);
}
.hero .wrap{position:relative;z-index:1}
.hero h1{margin-bottom:16px}
.hero h1 span{color:var(--brand)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 20px}
.btn-brand,.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 16px 28px -18px rgba(14,107,122,1)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 20px 34px -18px rgba(14,107,122,1)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:6px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:#43606a;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px;
}
.tag i{color:var(--accent);font-size:11px}
.kpi-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);padding:24px 22px 20px;
}
.kpi-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px dashed var(--line-strong)}
.kpi-top strong{font-size:14.5px;color:var(--ink)}
.kpi-top span{font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.kpi-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);margin-top:18px;border-radius:var(--radius-sm);overflow:hidden}
.kpi-cell{background:#fff;padding:16px 14px}
.kpi-num{font-size:clamp(21px,2.4vw,27px);font-weight:800;color:var(--brand-dark);line-height:1.1;letter-spacing:-.02em}
.kpi-num small{font-size:12.5px;font-weight:700;color:var(--muted);margin-left:3px}
.kpi-label{font-size:12.5px;color:var(--muted);margin-top:6px}
.kpi-foot{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}
.kpi-foot .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}

/* ===== 卡片通用 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe1e6}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);font-size:17px;margin-bottom:16px;
}
.card-icon.accent{background:var(--accent-soft);color:#217354}
.card-icon.warm{background:var(--warm-soft);color:#96662a}
.card h3{margin-bottom:9px}
.card p{font-size:14.5px;color:#4c6a73;margin:0}
.card-note{margin-top:14px;padding-top:13px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:700;letter-spacing:.05em;
  padding:4px 10px;border-radius:6px;background:var(--brand-soft);color:var(--brand-dark);
}
.badge.accent{background:var(--accent-soft);color:#217354}
.badge.warm{background:var(--warm-soft);color:#8c5f24}

/* ===== 节奏表 ===== */
.matrix{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.matrix-row{
  display:grid;grid-template-columns:150px 1fr 1fr 180px;
  gap:0;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.matrix-row:last-child{border-bottom:0}
.matrix-row:hover{background:var(--surface-2)}
.matrix-row.head{
  background:#eef6f7;font-size:12.5px;font-weight:700;color:var(--brand-dark);
  letter-spacing:.08em;text-transform:uppercase;
}
.matrix-cell{padding:18px 20px;font-size:14.5px;color:#4c6a73;border-right:1px solid var(--line)}
.matrix-cell:last-child{border-right:0}
.matrix-cell strong{display:block;color:var(--ink);font-size:15px;margin-bottom:3px}
.matrix-row.head .matrix-cell{color:var(--brand-dark);border-color:#d7e8ec}
.stage-pill{
  display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:13px;
  color:var(--brand-dark);background:var(--brand-soft);border-radius:999px;padding:4px 12px;
}

/* ===== 追剧路线 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;position:relative;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:var(--brand);transform:translateY(-3px)}
.step-num{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--ink);color:#fff;font-weight:800;font-size:14px;margin-bottom:14px;
}
.step h3{font-size:16px;margin-bottom:7px}
.step p{font-size:13.8px;color:var(--muted);margin:0}

/* ===== 人物卡 ===== */
.person{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.person:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.person-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#fff;background:var(--brand);
}
.avatar.a2{background:#3a7f9b}
.avatar.a3{background:var(--accent)}
.avatar.a4{background:#8a6b3f}
.person-name{font-size:15.5px;font-weight:800;color:var(--ink);line-height:1.3}
.person-role{font-size:12px;color:var(--muted);margin-top:2px}
.person p{font-size:14px;color:#4c6a73;margin:0}

/* ===== 名场面引言 ===== */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--radius);padding:22px 22px 18px;box-shadow:var(--shadow-sm);
}
.quote p{font-size:14.8px;color:#3c5a63;margin-bottom:14px}
.quote-meta{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--muted)}
.quote-meta i{color:var(--warm)}
.stars{display:flex;gap:3px;color:#e0a942;font-size:12px;margin-bottom:12px}

/* ===== 数据条 ===== */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;margin-top:26px;
}
.stat-band .stat{background:#fff;padding:22px 20px;text-align:center}
.stat-band .stat strong{display:block;font-size:clamp(20px,2.2vw,26px);color:var(--brand-dark);font-weight:800;letter-spacing:-.02em}
.stat-band .stat span{font-size:12.8px;color:var(--muted)}

/* ===== FAQ ===== */
.faq{max-width:880px;margin-inline:auto;display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{border-color:#bcdde2}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:flex-start;gap:12px;
  padding:18px 20px;font-weight:700;font-size:15.3px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:12px;color:var(--brand);flex:0 0 auto;padding-top:4px;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-item summary:hover{background:var(--surface-2)}
.faq-body{padding:0 20px 20px;font-size:14.5px;color:#4c6a73}
.faq-body p:last-child{margin-bottom:0}

/* ===== CTA ===== */
.cta{
  position:relative;overflow:hidden;
  background:linear-gradient(140deg,#0c2b33 0%, #103f49 62%, #0e5160 100%);
  border-radius:var(--radius-lg);padding:clamp(32px,4.4vw,54px);
  color:#d9e8eb;box-shadow:0 30px 60px -40px rgba(9,40,47,.9);
}
.cta::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle, rgba(47,143,107,.34) 0%, rgba(47,143,107,0) 70%);
}
.cta h2{color:#fff;max-width:640px}
.cta p{color:#b9d2d8;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;position:relative;z-index:1}
.cta .btn-brand{background:#fff;color:var(--brand-dark);box-shadow:none}
.cta .btn-brand:hover{background:#e8f5f7;color:var(--brand-dark)}
.cta .btn-ghost{background:transparent;color:#d9e8eb;border-color:rgba(255,255,255,.32);box-shadow:none}
.cta .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.cta-list{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13.5px;color:#a9c8cf;position:relative;z-index:1}
.cta-list li{display:flex;align-items:center;gap:8px}
.cta-list i{color:#57c39a;font-size:12px}

/* ===== 页脚 ===== */
.site-footer{background:#0b2229;color:#9fb9c0;margin-top:var(--space);padding:clamp(40px,5vw,62px) 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);box-shadow:none}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#7c99a1}
.footer-desc{font-size:13.8px;color:#8eaab2;max-width:40ch;line-height:1.8}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:#cfe2e7;text-transform:uppercase;margin-bottom:14px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#9fb9c0;font-size:14px;transition:color .18s ease,transform .18s ease;display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  font-size:12.6px;color:#7c99a1;
}
.footer-bottom a{color:#9fb9c0}
.footer-bottom a:hover{color:#fff}

/* ===== 移动端底部 Tab ===== */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:none;background:rgba(255,255,255,.97);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -20px rgba(15,31,36,.6);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom,0px));
}
.tabbar-inner{display:grid;grid-template-columns:repeat(5,1fr);max-width:560px;margin-inline:auto}
.tab{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 2px;border-radius:10px;color:#6b8790;font-size:10.8px;font-weight:600;
  transition:color .18s ease,background .18s ease;
}
.tab i{font-size:16px}
.tab:hover{color:var(--brand)}
.tab.is-active{color:var(--brand-dark);background:var(--brand-soft)}
.tab.is-active i{color:var(--brand)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav-desktop{gap:2px}
  .nav-link{padding:8px 11px;font-size:13.8px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .quotes{grid-template-columns:1fr 1fr}
  .matrix-row{grid-template-columns:130px 1fr 1fr}
  .matrix-row .matrix-cell:nth-child(4){display:none}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:991.98px){
  .header-cta{display:none}
  .nav-desktop{display:none}
  .header-inner{justify-content:space-between;min-height:62px}
  .tabbar{display:block}
  body{padding-bottom:74px}
  .kpi-panel{margin-top:8px}
}
@media (max-width:768px){
  .wrap{width:calc(100% - 32px)}
  .grid-3,.grid-2,.grid-4,.quotes,.steps{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr 1fr}
  .matrix-row{grid-template-columns:1fr;border-bottom:1px solid var(--line);padding:4px 0}
  .matrix-row .matrix-cell{border-right:0;padding:10px 18px}
  .matrix-row .matrix-cell:nth-child(4){display:block}
  .matrix-row.head{display:none}
  .matrix-cell strong{font-size:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{flex:1 1 100%;justify-content:center}
}
@media (max-width:520px){
  body{font-size:15.4px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:10.5px;letter-spacing:.04em}
  .brand-mark{width:36px;height:36px;border-radius:10px;font-size:15px}
  .hero{padding-top:34px}
  .card{padding:22px 18px}
  .kpi-grid{grid-template-columns:1fr 1fr}
  .stat-band{grid-template-columns:1fr}
  .cta{padding:26px 20px;border-radius:var(--radius)}
  .tab{font-size:10px}
  .tab i{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category1 */
:root{
  --brand:#0f5f86;
  --brand-deep:#0a3b55;
  --brand-soft:#e6f1f7;
  --accent:#12a594;
  --accent-soft:#e1f5f2;
  --ink:#0f2233;
  --ink-soft:#54687d;
  --ink-mute:#8296a9;
  --bg:#f4f7fa;
  --surface:#ffffff;
  --line:#e1e8f0;
  --line-strong:#ccd9e5;
  --warn:#c2761a;
  --warn-soft:#fdf3e3;
  --radius-xs:8px;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:24px;
  --shadow-xs:0 1px 2px rgba(15,34,51,.06);
  --shadow-sm:0 4px 14px -8px rgba(15,34,51,.28);
  --shadow:0 14px 40px -24px rgba(15,34,51,.42);
  --shadow-lg:0 30px 70px -38px rgba(15,34,51,.5);
  --maxw:1140px;
  --font:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(18,165,148,.45);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 22px;
  min-height:74px;display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand) 0%,#1585a8 55%,var(--accent) 100%);
  color:#fff;font-size:17px;box-shadow:0 8px 18px -10px rgba(15,95,134,.9);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.02em;}
.brand-sub{font-size:11px;font-weight:500;color:var(--ink-mute);letter-spacing:.12em;}
.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-soft);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft);}
.nav-link.is-active{color:var(--brand-deep);background:var(--brand-soft);box-shadow:inset 0 0 0 1px rgba(15,95,134,.16);}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;
  background:var(--brand-deep);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 10px 24px -14px rgba(10,59,85,.95);
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
  flex-shrink:0;
}
.header-cta:hover{background:var(--brand);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(10,59,85,.9);}
.header-cta:active{transform:translateY(0);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:68px 0 60px;
  background:
    radial-gradient(900px 380px at 12% -10%,rgba(18,165,148,.14),transparent 65%),
    radial-gradient(760px 340px at 92% 0%,rgba(15,95,134,.16),transparent 62%),
    linear-gradient(180deg,#ffffff 0%,#f2f7fb 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line-strong);
  font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--brand);
  box-shadow:var(--shadow-xs);
}
.hero h1{
  margin:20px 0 16px;
  font-size:clamp(28px,4vw,44px);
  letter-spacing:-.025em;
}
.hero h1 em{font-style:normal;color:var(--brand);background:linear-gradient(180deg,transparent 68%,rgba(18,165,148,.28) 68%);}
.hero-lead{font-size:16.5px;color:var(--ink-soft);max-width:44em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:1px solid var(--brand-deep);
  background:var(--brand-deep);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 16px 32px -18px rgba(10,59,85,.95);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:999px;border:1px solid var(--line-strong);
  background:#fff;color:var(--brand-deep);font-weight:700;font-size:15px;
  box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}
.hero-note{margin-top:20px;font-size:13px;color:var(--ink-mute);display:flex;flex-wrap:wrap;gap:16px;}
.hero-note span{display:inline-flex;align-items:center;gap:7px;}
.hero-note i{color:var(--accent);}

.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow);
}
.panel-title{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--ink-mute);text-transform:uppercase;}
.kpi-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px;}
.kpi{
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:15px 16px;
  background:linear-gradient(180deg,#fbfdff,#f4f8fb);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.kpi:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.kpi-num{font-size:27px;font-weight:800;color:var(--brand-deep);line-height:1.1;letter-spacing:-.02em;}
.kpi-num small{font-size:14px;font-weight:700;color:var(--ink-mute);margin-left:2px;}
.kpi-label{font-size:12.5px;color:var(--ink-soft);margin-top:6px;line-height:1.5;}
.panel-bar{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line-strong);}
.bar-row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-soft);margin-bottom:10px;}
.bar-row strong{color:var(--brand-deep);font-weight:800;}
.bar-track{height:8px;border-radius:999px;background:#e8eff5;overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.bar-fill.f2{width:72%;}
.bar-fill.f1{width:56%;margin-top:12px;background:linear-gradient(90deg,#7f9fbb,#9fbed4);}

/* ---------- sections ---------- */
.section{padding:66px 0;}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:var(--accent-soft);color:#0b7a6e;letter-spacing:.05em;
}
.section-head h2{font-size:clamp(22px,2.8vw,32px);margin:14px 0 12px;}
.section-head p{color:var(--ink-soft);font-size:15.5px;margin:0;}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-xs);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:18px;margin-bottom:16px;
}
.card-icon.accent{background:var(--accent-soft);color:#0b7a6e;}
.card h3{font-size:17.5px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--ink-soft);margin:0;}
.card-meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  font-size:12px;font-weight:700;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:999px;padding:4px 11px;
}
.chip.dark{background:#eef2f6;color:var(--ink-soft);}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:30px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent) 70%,#dfe8f0);
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 28px 4px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-29px;top:7px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(15,95,134,.1);
}
.tl-item.teal::before{border-color:var(--accent);box-shadow:0 0 0 4px rgba(18,165,148,.14);}
.tl-step{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--accent);}
.tl-item h3{font-size:17px;margin:6px 0 8px;}
.tl-item p{font-size:14.5px;color:var(--ink-soft);margin:0;}

/* ---------- table ---------- */
.table-shell{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-xs);
}
.table-scroll{overflow-x:auto;}
.node-table{width:100%;border-collapse:collapse;min-width:720px;}
.node-table thead th{
  background:var(--brand-deep);color:#fff;font-size:13px;font-weight:700;
  letter-spacing:.08em;padding:15px 18px;text-align:left;white-space:nowrap;
}
.node-table tbody td{
  padding:16px 18px;border-top:1px solid var(--line);
  font-size:14.5px;color:var(--ink-soft);vertical-align:top;
}
.node-table tbody tr:nth-child(even) td{background:#fafcfe;}
.node-table tbody tr:hover td{background:var(--brand-soft);}
.node-table .c-name{font-weight:800;color:var(--ink);white-space:nowrap;}
.node-table .c-pos{white-space:nowrap;color:var(--brand);font-weight:700;}

/* ---------- use case list ---------- */
.use-list{display:grid;gap:14px;}
.use-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.use-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm);transform:translateX(3px);}
.use-num{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--brand-deep);color:#fff;font-size:14px;font-weight:800;
}
.use-item h3{font-size:16px;margin-bottom:6px;}
.use-item p{font-size:14.5px;color:var(--ink-soft);margin:0;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px 22px;box-shadow:var(--shadow-xs);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-14px;left:20px;
  background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;
  font-size:13px;font-weight:800;letter-spacing:.06em;
  padding:5px 12px;border-radius:999px;box-shadow:0 8px 18px -12px rgba(15,95,134,.9);
}
.step h3{font-size:16px;margin:8px 0 8px;}
.step p{font-size:14px;color:var(--ink-soft);margin:0;}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 20px;box-shadow:var(--shadow-xs);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 34px 18px 0;position:relative;
  font-size:16px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:12px;color:var(--brand);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);}
.faq-item summary:hover{color:var(--brand);}
.faq-body{padding:0 0 20px;font-size:14.5px;color:var(--ink-soft);border-top:1px dashed var(--line);padding-top:14px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-deep) 0%,#0d5174 55%,#0e7a83 100%);
  border-radius:var(--radius-lg);
  padding:52px 46px;color:#fff;
  box-shadow:var(--shadow-lg);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,165,148,.42),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.84);max-width:52em;font-size:15.5px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}
.btn-light{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:999px;background:#fff;color:var(--brand-deep);
  font-weight:800;font-size:15px;border:1px solid #fff;
  transition:transform .2s ease,background .2s ease;
}
.btn-light:hover{background:var(--accent-soft);color:var(--brand-deep);transform:translateY(-2px);}
.btn-outline-light2{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:999px;background:transparent;color:#fff;
  font-weight:700;font-size:15px;border:1px solid rgba(255,255,255,.48);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-outline-light2:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{
  background:#0b2233;color:#c3d2df;padding:56px 0 26px;margin-top:0;
  border-top:1px solid rgba(255,255,255,.06);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#7f97ac;}
.footer-desc{font-size:14px;color:#94aabd;max-width:38em;margin:0;}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#a6bdcd;transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-links a:hover{color:#5fd6c6;transform:translateX(3px);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:#7f97ac;
}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:950;display:none;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -20px rgba(15,34,51,.6);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:7px 2px;border-radius:12px;font-size:11px;font-weight:700;color:var(--ink-mute);
  transition:color .2s ease,background .2s ease;
}
.tab-item i{font-size:16px;}
.tab-item:hover{color:var(--brand);background:var(--brand-soft);}
.tab-item.is-active{color:var(--brand-deep);background:var(--brand-soft);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:22px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:860px){
  .nav-desktop{display:none;}
  .header-cta{display:none;}
  .header-inner{min-height:66px;}
  .mobile-tabbar{display:flex;}
  body{padding-bottom:70px;}
  .section{padding:52px 0;}
  .hero{padding:46px 0 44px;}
  .cta-band{padding:38px 26px;}
}
@media (max-width:768px){
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .use-item{flex-direction:row;}
  .footer-grid{grid-template-columns:1fr;}
  .kpi-list{grid-template-columns:1fr 1fr;}
}
@media (max-width:520px){
  .wrap,.header-inner{padding:0 16px;}
  .hero h1{font-size:26px;}
  .hero-lead{font-size:15px;}
  .btn-primary,.btn-ghost,.btn-light,.btn-outline-light2{width:100%;justify-content:center;}
  .hero-actions{flex-direction:column;}
  .cta-actions{flex-direction:column;}
  .steps{grid-template-columns:1fr;}
  .kpi-list{grid-template-columns:1fr;}
  .brand-sub{display:none;}
  .footer-bottom{flex-direction:column;}
  .panel{padding:20px;}
}

/* roulang page: category2 */
:root{
  --ink:#132229;
  --ink-2:#33474f;
  --muted:#6b7d85;
  --line:#e1eaea;
  --line-strong:#cfdedd;
  --bg:#f4f8f8;
  --surface:#ffffff;
  --surface-2:#eef4f4;
  --teal:#16706b;
  --teal-dark:#0e514d;
  --teal-soft:#e4f1f0;
  --blue:#2f6f9e;
  --blue-soft:#e8f1f8;
  --amber:#a97432;
  --amber-soft:#faf1e3;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-xs:0 1px 2px rgba(15,40,45,.06);
  --shadow-sm:0 6px 18px -12px rgba(15,40,45,.35);
  --shadow:0 18px 40px -26px rgba(15,40,45,.45);
  --container:1160px;
  --ease:cubic-bezier(.4,.08,.2,1);
  --header-h:74px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.01em;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--teal);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--teal-dark);}
a:focus-visible,button:focus-visible,.nav-link:focus-visible,.tab-item:focus-visible{
  outline:3px solid rgba(22,112,107,.35);
  outline-offset:3px;
  border-radius:6px;
}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.wrap{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.container-custom{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  min-height:var(--header-h);
  padding:10px 24px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--ink);
  flex-shrink:0;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(150deg,var(--teal) 0%,#1d8d84 100%);
  color:#fff;
  font-size:17px;
  box-shadow:0 8px 18px -10px rgba(22,112,107,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.04em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.18em;margin-top:3px;}
.nav-desktop{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  border-radius:10px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{background:var(--surface-2);color:var(--teal-dark);}
.nav-link.is-active{color:var(--teal-dark);background:var(--teal-soft);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;border-radius:2px;
  background:var(--teal);
  opacity:.7;
}
.header-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  border-radius:12px;
  background:var(--teal);
  color:#fff;
  font-size:14px;
  font-weight:700;
  box-shadow:0 10px 22px -14px rgba(22,112,107,1);
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
  flex-shrink:0;
}
.header-cta:hover{
  background:var(--teal-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 14px 26px -14px rgba(22,112,107,1);
}
.header-cta i{font-size:12px;}
/* ============ HERO ============ */
.page-hero{
  position:relative;
  padding:64px 0 56px;
  background:
    radial-gradient(circle at 12% 0%,rgba(22,112,107,.10),transparent 46%),
    radial-gradient(circle at 88% 10%,rgba(47,111,158,.10),transparent 44%),
    linear-gradient(180deg,#ffffff 0%,#f2f8f7 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(19,34,41,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(19,34,41,.035) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:start;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line-strong);
  color:var(--teal-dark);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  box-shadow:var(--shadow-xs);
}
.eyebrow i{font-size:11px;color:var(--teal);}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(28px,3.3vw,44px);
  line-height:1.22;
  letter-spacing:-.02em;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--teal);
  position:relative;
  white-space:nowrap;
}
.hero-lead{
  margin-top:18px;
  font-size:16.5px;
  color:var(--ink-2);
  max-width:60ch;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;
  border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:var(--surface);border:1px solid var(--line-strong);
  color:var(--ink-2);
}
.tag i{font-size:10px;color:var(--teal);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.btn-solid,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;
  border-radius:13px;
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-solid{
  background:var(--teal);color:#fff;
  box-shadow:0 16px 30px -18px rgba(22,112,107,1);
}
.btn-solid:hover{background:var(--teal-dark);color:#fff;transform:translateY(-2px);box-shadow:0 20px 34px -18px rgba(22,112,107,1);}
.btn-ghost{
  background:var(--surface);color:var(--ink);border-color:var(--line-strong);
  box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{background:var(--surface-2);color:var(--teal-dark);border-color:var(--teal);transform:translateY(-2px);}
.kpi-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:26px;
  box-shadow:var(--shadow);
}
.kpi-panel h2{font-size:14px;letter-spacing:.14em;color:var(--muted);font-weight:700;}
.kpi-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-top:18px;
}
.kpi{
  padding:16px;
  border-radius:var(--radius);
  background:var(--surface-2);
  border:1px solid var(--line);
}
.kpi-num{
  font-size:26px;font-weight:800;color:var(--teal-dark);
  letter-spacing:-.02em;line-height:1.1;
}
.kpi-num small{font-size:13px;font-weight:700;color:var(--muted);margin-left:2px;}
.kpi-label{font-size:12.5px;color:var(--muted);margin-top:6px;}
.kpi-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-strong);
  font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:flex-start;
}
.kpi-note i{color:var(--teal);margin-top:4px;}
/* ============ SECTIONS ============ */
.section{padding:72px 0;}
.section.tight{padding:56px 0;}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:38px;}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:.16em;
  color:var(--teal);text-transform:uppercase;
}
.section-label::before{
  content:"";width:24px;height:2px;border-radius:2px;background:var(--teal);opacity:.65;
}
.section-title{margin-top:12px;font-size:clamp(22px,2.4vw,32px);letter-spacing:-.02em;}
.section-desc{margin-top:12px;color:var(--ink-2);font-size:15.5px;}
/* ============ ROLE CARDS ============ */
.role-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.role-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow-xs);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  position:relative;
  overflow:hidden;
}
.role-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--teal),rgba(22,112,107,0));
  opacity:0;transition:opacity .25s var(--ease);
}
.role-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.role-card:hover::before{opacity:1;}
.role-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.role-badge{
  font-size:11.5px;font-weight:800;letter-spacing:.08em;
  padding:5px 11px;border-radius:999px;
  background:var(--teal-soft);color:var(--teal-dark);
}
.role-badge.blue{background:var(--blue-soft);color:var(--blue);}
.role-badge.amber{background:var(--amber-soft);color:var(--amber);}
.role-icon{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--surface-2);color:var(--teal);font-size:15px;
}
.role-card h3{margin-top:16px;font-size:18px;}
.role-line{margin-top:8px;font-size:14px;color:var(--ink-2);}
.role-meta{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-strong);
  display:grid;gap:10px;font-size:13.2px;
}
.role-meta div{display:flex;gap:8px;}
.role-meta span{color:var(--muted);flex-shrink:0;min-width:56px;}
.role-meta strong{font-weight:600;color:var(--ink);}
/* ============ MATRIX TABLE ============ */
.matrix-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.matrix-table{width:100%;border-collapse:collapse;font-size:14.2px;}
.matrix-table thead th{
  background:var(--surface-2);
  text-align:left;
  padding:15px 18px;
  font-size:12.5px;
  letter-spacing:.1em;
  color:var(--muted);
  font-weight:800;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.matrix-table tbody td{
  padding:16px 18px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  color:var(--ink-2);
}
.matrix-table tbody tr:last-child td{border-bottom:none;}
.matrix-table tbody tr{transition:background .2s var(--ease);}
.matrix-table tbody tr:hover{background:#f8fbfb;}
.matrix-table td:first-child{font-weight:700;color:var(--ink);white-space:nowrap;}
.dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  margin-right:8px;vertical-align:middle;
}
.dot-teal{background:var(--teal);}
.dot-blue{background:var(--blue);}
.dot-amber{background:var(--amber);}
.dot-gray{background:#9bacb2;}
/* ============ TIMELINE ============ */
.arc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.arc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  position:relative;
  box-shadow:var(--shadow-xs);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.arc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.arc-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--teal);color:#fff;
  font-size:14px;font-weight:800;
  box-shadow:0 10px 20px -12px rgba(22,112,107,1);
}
.arc-card h3{margin-top:16px;font-size:17.5px;}
.arc-card p{margin-top:10px;font-size:14.2px;color:var(--ink-2);}
.arc-list{margin-top:16px;display:grid;gap:8px;}
.arc-list li{
  display:flex;gap:9px;font-size:13.4px;color:var(--muted);
}
.arc-list li i{color:var(--teal);font-size:10px;margin-top:7px;}
/* ============ CLUE LIST ============ */
.clue-box{
  display:grid;grid-template-columns:1fr 1fr;
  gap:16px;
}
.clue-item{
  display:flex;gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.clue-item:hover{border-color:var(--teal);box-shadow:var(--shadow-sm);}
.clue-num{
  flex-shrink:0;
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--teal-soft);color:var(--teal-dark);
  font-weight:800;font-size:15px;
}
.clue-item h3{font-size:16px;}
.clue-item p{margin-top:7px;font-size:13.8px;color:var(--ink-2);}
/* ============ QUOTE / EVIDENCE ============ */
.evidence{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;
  background:linear-gradient(150deg,#0f2e31 0%,#14464b 60%,#175a5c 100%);
  border-radius:var(--radius-xl);
  padding:44px;
  color:#dbe9e8;
  box-shadow:var(--shadow);
}
.evidence h2{color:#fff;font-size:clamp(20px,2.2vw,28px);}
.evidence p{margin-top:14px;font-size:14.6px;color:#bcd4d3;}
.evidence-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.evi-stat{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);
  padding:18px;
}
.evi-stat strong{display:block;font-size:24px;color:#fff;font-weight:800;letter-spacing:-.02em;}
.evi-stat span{display:block;margin-top:6px;font-size:12.8px;color:#a9c6c4;}
/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-xs);}
.faq-item .accordion-button{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;
  background:transparent;
  border:none;
  font-size:15.5px;
  font-weight:700;
  color:var(--ink);
  text-align:left;
  box-shadow:none;
  border-radius:0;
}
.faq-item .accordion-button:not(.collapsed){
  color:var(--teal-dark);
  background:var(--teal-soft);
  box-shadow:none;
}
.faq-item .accordion-button::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:12px;
  color:var(--teal);
  background:none;
  width:auto;height:auto;
  transition:transform .25s var(--ease);
  margin-left:auto;
}
.faq-item .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.faq-item .accordion-body{
  padding:0 22px 20px;
  font-size:14.4px;
  color:var(--ink-2);
  background:var(--teal-soft);
}
.faq-item .accordion-button:focus{box-shadow:none;outline:2px solid rgba(22,112,107,.35);outline-offset:-3px;}
/* ============ CTA ============ */
.cta-band{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:var(--shadow-sm);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,112,107,.14),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);}
.cta-band p{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:56ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}
/* ============ FOOTER ============ */
.site-footer{
  margin-top:72px;
  background:#0e2a2d;
  color:#b9cecd;
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr .7fr .7fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:800;letter-spacing:.04em;}
.footer-brand .brand-sub{color:#8fadac;font-size:11px;letter-spacing:.18em;margin-top:3px;}
.footer-desc{margin-top:18px;font-size:14px;color:#9fbcbb;max-width:44ch;line-height:1.8;}
.footer-col h4{
  color:#fff;font-size:14px;letter-spacing:.08em;
  margin-bottom:16px;font-weight:700;
}
.footer-links{display:grid;gap:11px;}
.footer-links a{
  color:#a9c5c4;font-size:14px;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.8px;
  color:#87a4a3;
}
/* ============ MOBILE TABS ============ */
.mobile-tabs{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));
  box-shadow:0 -8px 26px -20px rgba(15,40,45,.6);
}
.tab-item{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  padding:6px 2px;
  border-radius:12px;
  font-size:11px;
  font-weight:600;
  color:var(--muted);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.tab-item i{font-size:16px;}
.tab-item:hover{color:var(--teal-dark);}
.tab-item.is-active{color:var(--teal-dark);background:var(--teal-soft);}
/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .role-grid{grid-template-columns:repeat(2,1fr);}
  .arc-grid{grid-template-columns:1fr;}
  .evidence{grid-template-columns:1fr;padding:34px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
}
@media (max-width:880px){
  .nav-desktop{display:none;}
  .header-inner{gap:14px;justify-content:space-between;}
  .header-cta{margin-left:auto;padding:9px 16px;font-size:13px;}
  .mobile-tabs{display:flex;}
  body{padding-bottom:72px;}
  .site-footer{margin-top:48px;}
  .section{padding:52px 0;}
  .clue-box{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .page-hero{padding:44px 0 40px;}
}
@media (max-width:768px){
  .wrap,.container-custom,.header-inner{padding-left:18px;padding-right:18px;}
  .matrix-wrap{overflow-x:auto;}
  .matrix-table{min-width:640px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .kpi-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:520px){
  body{font-size:15.4px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15.5px;}
  .brand-mark{width:38px;height:38px;border-radius:11px;font-size:15px;}
  .header-cta{display:none;}
  .role-grid{grid-template-columns:1fr;}
  .evidence-stats{grid-template-columns:1fr;}
  .kpi-grid{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn-solid,.btn-ghost{width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-solid,.cta-actions .btn-ghost{width:100%;}
  .page-hero h1{font-size:26px;}
  .section-title{font-size:22px;}
  .evidence{padding:26px;}
  .role-card{padding:20px;}
}

/* roulang page: category3 */
:root{
  --ink:#101c2b;
  --ink-soft:#33455a;
  --muted:#6b7a8d;
  --line:#e2e8f0;
  --line-strong:#cfd9e5;
  --paper:#ffffff;
  --paper-2:#f5f8fb;
  --paper-3:#eef3f8;
  --teal:#0f7f76;
  --teal-deep:#0a5f59;
  --teal-soft:#e2f3f1;
  --blue:#2b5aa0;
  --blue-soft:#e8eff9;
  --amber:#a9701a;
  --amber-soft:#fbf0dc;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow-1:0 1px 2px rgba(16,28,43,.06),0 10px 26px -18px rgba(16,28,43,.30);
  --shadow-2:0 2px 8px rgba(16,28,43,.07),0 28px 54px -30px rgba(16,28,43,.38);
  --max:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:var(--paper-2);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--teal-deep);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--blue);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(43,90,160,.45);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  width:100%;max-width:var(--max);margin:0 auto;
  padding:12px 22px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--teal),var(--blue));
  color:#fff;font-size:16px;
  box-shadow:0 6px 16px -8px rgba(15,127,118,.85);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-name{font-size:16.5px;font-weight:800;letter-spacing:.01em;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.08em;}
.nav-desktop{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-soft);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-link:hover{background:var(--paper-3);color:var(--teal-deep);}
.nav-link.is-active{background:var(--teal-soft);color:var(--teal-deep);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--teal);
}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--teal),var(--teal-deep));
  box-shadow:0 10px 22px -14px rgba(10,95,89,.95);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
  white-space:nowrap;
}
.header-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(10,95,89,.95);filter:brightness(1.05);}
.header-cta:active{transform:translateY(0);}

/* ============ hero ============ */
.hero{
  position:relative;
  padding:56px 0 46px;
  background:
    radial-gradient(900px 420px at 12% -10%,rgba(15,127,118,.13),transparent 62%),
    radial-gradient(760px 380px at 92% 0%,rgba(43,90,160,.12),transparent 60%),
    var(--paper);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,28,43,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(16,28,43,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;
  background:var(--teal-soft);color:var(--teal-deep);
  font-size:12.5px;font-weight:700;letter-spacing:.05em;
  border:1px solid rgba(15,127,118,.18);
}
.hero h1{
  margin:20px 0 0;
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.18;letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--teal-deep);}
.hero-lead{
  margin-top:18px;font-size:16.5px;color:var(--ink-soft);max-width:56ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:12px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-main{
  background:linear-gradient(135deg,var(--teal),var(--teal-deep));
  color:#fff;box-shadow:0 14px 28px -18px rgba(10,95,89,1);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 20px 34px -18px rgba(10,95,89,1);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  background:var(--paper);color:var(--ink);border-color:var(--line-strong);
  box-shadow:var(--shadow-1);
}
.btn-ghost:hover{color:var(--teal-deep);border-color:var(--teal);background:#fbfefd;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.hero-note{margin-top:20px;font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:8px;}

/* hero panel */
.panel{
  background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-2);
  padding:22px;position:relative;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.panel-title{font-size:14.5px;font-weight:800;letter-spacing:.02em;}
.panel-tag{font-size:11.5px;font-weight:700;color:var(--teal-deep);background:var(--teal-soft);padding:4px 10px;border-radius:999px;}
.panel-rows{display:grid;gap:0;margin-top:4px;}
.panel-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);
}
.panel-row:last-child{border-bottom:none;}
.panel-row dt{font-size:13.5px;color:var(--muted);font-weight:600;}
.panel-row dd{margin:0;font-size:19px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;}
.panel-row dd span{font-size:12px;font-weight:600;color:var(--muted);margin-left:2px;}
.heat{margin-top:16px;display:grid;gap:11px;}
.heat-item{display:grid;gap:6px;}
.heat-label{display:flex;justify-content:space-between;font-size:12.5px;font-weight:700;color:var(--ink-soft);}
.heat-label b{color:var(--teal-deep);font-variant-numeric:tabular-nums;}
.heat-bar{height:7px;border-radius:999px;background:var(--paper-3);overflow:hidden;}
.heat-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--teal),var(--blue));}

/* ============ sections ============ */
.section{padding:62px 0;}
.section.alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:34px;}
.section-kicker{
  font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--teal-deep);
  text-transform:uppercase;display:flex;align-items:center;gap:9px;
}
.section-kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--teal);}
.section-head h2{margin-top:12px;font-size:clamp(23px,2.9vw,31px);letter-spacing:-.02em;}
.section-head p{margin-top:12px;color:var(--ink-soft);font-size:15.5px;}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}

.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  height:100%;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.card-icon{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:var(--teal-soft);color:var(--teal-deep);font-size:16px;margin-bottom:14px;
}
.card h3{font-size:16.5px;margin-bottom:8px;}
.card p{font-size:14.2px;color:var(--ink-soft);}
.card .meta{margin-top:14px;font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:7px;}

/* ranking list */
.rank-list{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);overflow:hidden;
}
.rank-head{
  display:grid;grid-template-columns:56px 1.5fr 1fr .9fr 96px;
  gap:14px;padding:14px 22px;
  background:var(--paper-3);border-bottom:1px solid var(--line);
  font-size:12px;font-weight:800;letter-spacing:.09em;color:var(--muted);
}
.rank-row{
  display:grid;grid-template-columns:56px 1.5fr 1fr .9fr 96px;
  gap:14px;align-items:center;
  padding:18px 22px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.rank-row:last-child{border-bottom:none;}
.rank-row:hover{background:#f9fcfb;}
.rank-index{
  font-size:20px;font-weight:800;color:var(--line-strong);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.rank-row:nth-child(2) .rank-index{color:var(--teal);}
.rank-row:nth-child(3) .rank-index{color:var(--blue);}
.scene-name{font-size:15.5px;font-weight:800;color:var(--ink);display:block;}
.scene-sub{display:block;font-size:12.8px;color:var(--muted);margin-top:3px;}
.rank-row .cell{font-size:13.6px;color:var(--ink-soft);}
.score{
  display:inline-flex;align-items:center;gap:5px;
  font-size:14px;font-weight:800;color:var(--teal-deep);
  background:var(--teal-soft);border:1px solid rgba(15,127,118,.18);
  padding:4px 10px;border-radius:999px;font-variant-numeric:tabular-nums;
}
.badge-soft{
  display:inline-block;font-size:12px;font-weight:700;
  padding:3px 9px;border-radius:7px;
  background:var(--blue-soft);color:var(--blue);
}
.badge-warm{background:var(--amber-soft);color:var(--amber);}

/* tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  font-size:13.2px;font-weight:700;color:var(--ink-soft);
  background:var(--paper);border:1px solid var(--line-strong);
  padding:7px 14px;border-radius:999px;
  transition:all .18s var(--ease);
}
.tag:hover{border-color:var(--teal);color:var(--teal-deep);background:var(--teal-soft);transform:translateY(-1px);}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:step;}
.step{
  position:relative;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px 22px;box-shadow:var(--shadow-1);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:12.5px;font-weight:800;letter-spacing:.14em;
  color:var(--teal-deep);margin-bottom:10px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:14.2px;color:var(--ink-soft);}

/* feature list */
.feature-list{display:grid;gap:12px;margin-top:20px;}
.feature-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;font-size:14.4px;color:var(--ink-soft);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.feature-list li:hover{border-color:var(--teal);box-shadow:var(--shadow-1);}
.feature-list i{color:var(--teal);margin-top:4px;font-size:13px;flex:0 0 auto;}
.feature-list strong{color:var(--ink);font-weight:800;}

/* faq */
.faq{display:grid;gap:12px;max-width:880px;}
.faq details{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:4px 20px;box-shadow:var(--shadow-1);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq details[open]{border-color:rgba(15,127,118,.4);box-shadow:var(--shadow-2);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;font-size:15.4px;font-weight:700;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--teal-deep);}
.faq summary .faq-icon{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  display:grid;place-items:center;background:var(--paper-3);color:var(--ink-soft);
  font-size:12px;transition:transform .22s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.faq details[open] summary .faq-icon{transform:rotate(45deg);background:var(--teal-soft);color:var(--teal-deep);}
.faq .faq-body{padding:0 0 18px;font-size:14.4px;color:var(--ink-soft);max-width:70ch;}

/* cta band */
.cta-band{
  margin:0 0 0;
  background:linear-gradient(135deg,#0b2a34,#123b4c 46%,#1c4c5c);
  border-radius:var(--radius-lg);
  padding:46px 40px;
  color:#eaf4f4;
  position:relative;overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(500px 240px at 88% 0%,rgba(15,127,118,.42),transparent 70%),
    radial-gradient(420px 220px at 4% 100%,rgba(43,90,160,.34),transparent 70%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .65fr;gap:32px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px);letter-spacing:-.02em;}
.cta-band p{margin-top:12px;color:rgba(234,244,244,.82);font-size:15.2px;max-width:56ch;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn-main{background:#fff;color:var(--teal-deep);box-shadow:0 16px 30px -18px rgba(0,0,0,.7);}
.cta-actions .btn-main:hover{color:var(--teal-deep);background:#f2fbfa;}
.cta-actions .btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:12px;font-size:15px;font-weight:700;
  color:#eaf4f4;border:1px solid rgba(234,244,244,.42);
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.cta-actions .btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-2px);}

/* footer */
.site-footer{
  margin-top:64px;background:#0c1a27;color:#c3d1de;
  padding:54px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr .75fr .75fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:11px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(195,209,222,.62);}
.footer-desc{margin-top:16px;font-size:14.2px;color:rgba(195,209,222,.78);max-width:44ch;line-height:1.85;}
.footer-col h4{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:14px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:rgba(195,209,222,.8);transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block;}
.footer-links a:hover{color:#7fd8cd;transform:translateX(3px);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.8px;color:rgba(195,209,222,.62);
}

/* mobile tabbar */
.tabbar{display:none;}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1.3fr .85fr .85fr;gap:28px;}
  .rank-head,.rank-row{grid-template-columns:44px 1.4fr .9fr 84px;}
  .rank-head span:nth-child(4),.rank-row .cell-mid{display:none;}
}
@media (max-width:768px){
  .nav-desktop{display:none;}
  .header-cta{display:none;}
  .header-inner{padding:11px 18px;justify-content:space-between;}
  .hero{padding:38px 0 34px;}
  .section{padding:46px 0;}
  .grid-2{grid-template-columns:1fr;}
  .rank-head{display:none;}
  .rank-row{
    grid-template-columns:38px 1fr auto;
    gap:10px 12px;padding:16px 16px;
  }
  .rank-row .cell-mid{display:none;}
  .rank-row .cell-right{grid-column:2 / -1;}
  .cta-band{padding:34px 24px;border-radius:var(--radius);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{padding:44px 0 96px;}
  /* bottom tabbar */
  .tabbar{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:950;
    background:rgba(255,255,255,.97);
    backdrop-filter:saturate(180%) blur(14px);
    border-top:1px solid var(--line);
    padding:7px 4px calc(7px + env(safe-area-inset-bottom));
    box-shadow:0 -8px 24px -18px rgba(16,28,43,.6);
  }
  .tab-item{
    display:flex;flex-direction:column;align-items:center;gap:3px;
    padding:5px 2px;border-radius:11px;
    font-size:10.5px;font-weight:700;color:var(--muted);
    transition:color .18s var(--ease),background .18s var(--ease);
  }
  .tab-item i{font-size:16px;}
  .tab-item:hover{color:var(--teal-deep);}
  .tab-item.is-active{color:var(--teal-deep);background:var(--teal-soft);}
}
@media (max-width:520px){
  body{font-size:15.4px;}
  .wrap{padding:0 16px;}
  .grid-4,.grid-3{grid-template-columns:1fr;}
  .hero h1{font-size:27px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .panel{padding:18px;}
  .panel-row dd{font-size:17px;}
  .rank-row{grid-template-columns:32px 1fr;}
  .rank-row .cell-right{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .brand-sub{display:none;}
}

/* roulang page: category4 */
:root{
  --ink:#0e1c2b;
  --ink-2:#3d4d61;
  --muted:#68788c;
  --brand:#0f7a6c;
  --brand-dark:#0a5d53;
  --brand-soft:#e6f4f1;
  --accent:#1c6fb0;
  --accent-soft:#e8f1fa;
  --bg:#f5f8fb;
  --surface:#ffffff;
  --line:#e2e9f1;
  --line-strong:#cbd7e3;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(15,32,50,.06);
  --shadow:0 12px 32px -20px rgba(15,32,50,.38);
  --shadow-lg:0 26px 64px -32px rgba(15,32,50,.45);
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease,background .2s ease}
a:hover{color:var(--brand)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
ul,ol{margin:0;padding:0}
:focus-visible{outline:3px solid rgba(15,122,108,.45);outline-offset:3px;border-radius:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px;width:100%}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--max);margin:0 auto;padding:12px 22px;
  display:flex;align-items:center;gap:26px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#12907f,#0b6357);
  color:#fff;font-size:16px;
  box-shadow:0 10px 22px -12px rgba(15,122,108,.95);
}
.brand-name{display:block;font-weight:700;font-size:17px;letter-spacing:.3px;line-height:1.25}
.brand-sub{display:block;font-size:11.5px;color:var(--muted);letter-spacing:1.1px;line-height:1.4}
.nav-desktop{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 15px;border-radius:11px;font-size:15px;font-weight:500;
  color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:700}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:12px;
  background:var(--ink);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:var(--shadow-sm);transition:background .2s,transform .2s,box-shadow .2s;
  flex:0 0 auto;
}
.header-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow)}

/* ============ mobile tabbar ============ */
.tabbar{display:none}
.tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:8px 2px 7px;font-size:10.5px;color:#8a9aac;font-weight:600;letter-spacing:.2px;
}
.tabbar a i{font-size:16px}
.tabbar a.is-active{color:var(--brand-dark)}
.tabbar a.is-active i{transform:translateY(-1px)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:13px;font-weight:600;font-size:15.5px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-primary{
  background:var(--brand);color:#fff;
  box-shadow:0 16px 30px -18px rgba(15,122,108,.95);
}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 20px 34px -18px rgba(15,122,108,.9)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:#fff;color:var(--ink);border-color:var(--line-strong);box-shadow:var(--shadow-sm);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark{background:#0c1a29;color:#fff;}
.btn-dark:hover{background:#123047;color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:11px}

/* ============ hero ============ */
.hero{
  padding:58px 0 56px;
  background:
    radial-gradient(1100px 460px at 88% -12%,#e6f4f1 0%,rgba(230,244,241,0) 66%),
    linear-gradient(180deg,#ffffff 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:700;letter-spacing:.6px;
}
.hero h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.24;letter-spacing:-.6px;
  margin:20px 0 16px;font-weight:800;
}
.lead{font-size:16.5px;color:var(--ink-2);max-width:660px;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 24px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;font-size:14px;color:var(--muted)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points i{color:var(--brand);font-size:13px}

.hero-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px 24px;
  box-shadow:var(--shadow-lg);
}
.hero-card-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;margin-bottom:18px;border-bottom:1px dashed var(--line-strong);
}
.hero-card-head h2{font-size:15.5px;margin:0;font-weight:700;letter-spacing:.3px}
.hero-card-head span{font-size:12px;color:var(--muted);letter-spacing:.5px}
.kpi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
.kpi{
  background:#f7fbfc;border:1px solid var(--line);border-radius:14px;
  padding:15px 16px;transition:border-color .2s,transform .2s;
}
.kpi:hover{border-color:#cfe4de;transform:translateY(-2px)}
.kpi-num{font-size:25px;font-weight:800;color:var(--brand-dark);letter-spacing:-.6px;line-height:1.2}
.kpi-num small{font-size:13px;font-weight:700;margin-left:2px;color:var(--ink-2)}
.kpi-label{font-size:12.5px;color:var(--muted);margin-top:2px}
.hero-card-note{
  margin-top:18px;padding:14px 16px;border-radius:13px;
  background:var(--accent-soft);color:#1a5f96;font-size:13.5px;line-height:1.7;
  display:flex;gap:10px;align-items:flex-start;
}
.hero-card-note i{margin-top:3px}

/* ============ section ============ */
.section{padding:68px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:38px}
.section-head .kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.6px;
  color:var(--brand);margin-bottom:12px;text-transform:uppercase;
}
.section-head h2{font-size:clamp(23px,2.8vw,32px);margin:0 0 12px;letter-spacing:-.4px;line-height:1.35}
.section-head p{margin:0;color:var(--muted);font-size:15.5px}

/* ============ cards ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe2dd}
.card-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);font-size:18px;margin-bottom:16px;
}
.card-icon.alt{background:var(--accent-soft);color:#1a5f96}
.card h3{font-size:18px;margin:0 0 10px;letter-spacing:-.2px;line-height:1.45}
.card p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.8}
.card .meta{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;padding-top:16px;
  border-top:1px dashed var(--line-strong);
}

/* ============ tags ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:var(--accent-soft);color:#1a5f96;
}
.tag-brand{background:var(--brand-soft);color:var(--brand-dark)}
.tag-line{background:#f1f4f8;color:var(--ink-2)}

/* ============ timeline ============ */
.timeline{list-style:none;display:grid;gap:16px}
.timeline li{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow-sm);
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.timeline li:hover{border-color:#cfe2dd;box-shadow:var(--shadow);transform:translateX(3px)}
.tl-num{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);
  font-weight:800;font-size:17px;letter-spacing:-.3px;
}
.timeline h3{font-size:17.5px;margin:0 0 8px;line-height:1.45}
.timeline p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.8}
.tl-tip{
  display:inline-flex;align-items:center;gap:7px;margin-top:12px;
  font-size:13px;color:var(--brand-dark);background:var(--brand-soft);
  padding:5px 12px;border-radius:999px;font-weight:600;
}

/* ============ pace table ============ */
.pace-table{
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:#fff;box-shadow:var(--shadow-sm);
}
.pace-row{
  display:grid;grid-template-columns:1.05fr 2.1fr .85fr;gap:18px;
  padding:17px 24px;border-bottom:1px solid var(--line);
  font-size:15px;align-items:center;transition:background .2s;
}
.pace-row:last-child{border-bottom:0}
.pace-row:hover{background:#f8fbfd}
.pace-head{
  background:#f1f6f9;font-weight:700;font-size:13px;
  letter-spacing:.8px;color:var(--ink-2);
}
.pace-row strong{font-weight:700;color:var(--ink)}
.pace-row span.desc{color:var(--ink-2);font-size:14.5px}
.pace-tag{
  display:inline-flex;justify-content:center;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:var(--brand-soft);color:var(--brand-dark);white-space:nowrap;
}
.pace-tag.slow{background:#fdf1e2;color:#a26410}
.pace-tag.fast{background:var(--accent-soft);color:#1a5f96}

/* ============ scene split ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-sm);
}
.panel h3{font-size:19px;margin:0 0 16px;letter-spacing:-.2px}
.check-list{list-style:none;display:grid;gap:13px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.75}
.check-list i{
  color:var(--brand);margin-top:4px;font-size:14px;flex:0 0 auto;
}
.note-list{list-style:none;display:grid;gap:14px}
.note-list li{
  padding:14px 16px;border-radius:13px;background:#f8fbfd;
  border:1px solid var(--line);font-size:14.5px;color:var(--ink-2);line-height:1.75;
}
.note-list b{color:var(--ink);font-weight:700}

/* ============ faq ============ */
.faq-wrap{max-width:880px}
.accordion-item{
  border:1px solid var(--line) !important;
  border-radius:var(--radius) !important;
  margin-bottom:14px;overflow:hidden;background:#fff;
  box-shadow:var(--shadow-sm);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  font-weight:700;color:var(--ink);background:#fff;
  padding:20px 24px;font-size:16px;line-height:1.6;
  box-shadow:none;border-radius:var(--radius) !important;
}
.accordion-button:not(.collapsed){
  background:var(--brand-soft);color:var(--brand-dark);box-shadow:none;
}
.accordion-button:focus{
  box-shadow:0 0 0 3px rgba(15,122,108,.22);
  border-color:transparent;z-index:2;
}
.accordion-button::after{
  width:1rem;height:1rem;background-size:1rem;
  filter:invert(35%) sepia(18%) saturate(1200%) hue-rotate(120deg);
}
.accordion-body{
  color:var(--ink-2);font-size:15px;padding:4px 24px 22px;line-height:1.85;
}

/* ============ cta ============ */
.cta-section{padding:0 0 76px}
.cta-band{
  background:linear-gradient(135deg,#0c2033 0%,#0d4a43 100%);
  border-radius:var(--radius-lg);
  padding:48px 46px;
  display:grid;grid-template-columns:1.35fr .65fr;gap:34px;align-items:center;
  box-shadow:var(--shadow-lg);color:#e8f1f5;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(94,216,196,.28),transparent 68%);
  border-radius:50%;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 14px;color:#fff;letter-spacing:-.3px;line-height:1.4}
.cta-band p{margin:0;color:#b7cbd8;font-size:15.5px;max-width:600px}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:2}
.cta-actions .btn{width:100%}
.cta-band .btn-primary{background:#14a08c;box-shadow:0 18px 34px -20px rgba(20,160,140,.95)}
.cta-band .btn-primary:hover{background:#0f8a79}
.cta-band .btn-ghost{background:rgba(255,255,255,.08);color:#e8f1f5;border-color:rgba(255,255,255,.28);box-shadow:none}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.45)}

/* ============ footer ============ */
.site-footer{background:#0c1a29;color:#c8d5e2;padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:#8fa4b8}
.site-footer .brand-mark{box-shadow:0 10px 22px -12px rgba(18,144,127,.9)}
.footer-desc{font-size:14px;color:#9db0c2;line-height:1.9;max-width:430px;margin:0}
.footer-col h4{font-size:14px;color:#fff;margin:0 0 15px;letter-spacing:.7px;font-weight:700}
.footer-links{display:grid;gap:11px}
.footer-links a{color:#9db0c2;font-size:14.5px;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:#5fd8c4;padding-left:3px}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7f93a6;
}

/* ============ responsive ============ */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-card{max-width:640px}
  .split{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn{width:auto;flex:1 1 220px}
}
@media (max-width:960px){
  .nav-desktop{gap:0}
  .nav-link{padding:9px 11px;font-size:14.2px}
  .header-cta{padding:9px 15px;font-size:13.8px}
}
@media (max-width:860px){
  .nav-desktop{display:none}
  .header-cta{display:none}
  .header-inner{padding:11px 18px;justify-content:space-between}
  body{padding-bottom:66px}
  .tabbar{
    display:grid;grid-template-columns:repeat(5,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:90;
    background:rgba(255,255,255,.97);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
    box-shadow:0 -8px 26px -20px rgba(15,32,50,.55);
    padding:4px 4px 6px;
  }
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-desc{max-width:none}
}
@media (max-width:768px){
  .hero{padding:42px 0 42px}
  .section{padding:52px 0}
  .section-head{margin-bottom:28px}
  .grid-3{grid-template-columns:1fr;gap:16px}
  .grid-2{grid-template-columns:1fr;gap:16px}
  .pace-row{grid-template-columns:1fr;gap:8px;padding:16px 18px}
  .pace-head{display:none}
  .pace-row strong{font-size:15.5px}
  .timeline li{grid-template-columns:52px 1fr;gap:15px;padding:20px 18px}
  .tl-num{width:44px;height:44px;border-radius:12px;font-size:15.5px}
  .panel{padding:24px 20px}
  .cta-section{padding:0 0 58px}
  .cta-band{padding:34px 24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .accordion-button{padding:17px 18px;font-size:15px}
  .accordion-body{padding:2px 18px 20px}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .header-inner{padding:10px 16px;gap:12px}
  .brand-mark{width:38px;height:38px;border-radius:11px;font-size:14px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:10.5px;letter-spacing:.6px}
  .hero h1{font-size:26px;letter-spacing:-.3px}
  .lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-points{font-size:13px;gap:8px 16px}
  .kpi-grid{grid-template-columns:1fr 1fr;gap:10px}
  .kpi{padding:13px 13px}
  .kpi-num{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .card{padding:22px 18px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .tabbar a{font-size:10px}
}