/* roulang page: index */
:root{
  --bg:#f5f8fd;
  --bg-alt:#eef4fe;
  --card:#ffffff;
  --ink:#0e1a2f;
  --ink-2:#41536e;
  --ink-3:#7b8ca6;
  --brand:#1f6feb;
  --brand-dark:#1450b8;
  --brand-soft:#e9f1ff;
  --accent:#0fa89a;
  --line:#e2eaf6;
  --line-strong:#cfdcf0;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,46,96,.06);
  --shadow:0 10px 28px rgba(18,46,96,.09);
  --shadow-lg:0 18px 44px rgba(18,46,96,.14);
  --container:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800;letter-spacing:-.2px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container{width:min(var(--container),100% - 44px);margin-inline:auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  border:1px solid transparent;white-space:nowrap;min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(31,111,235,.28)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(31,111,235,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(31,111,235,.3)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(18,46,96,.10)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(140deg,#2f83ff,#1450b8);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;
  box-shadow:0 6px 14px rgba(31,111,235,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand-text small{font-size:11.5px;color:var(--ink-3);letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-strong);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.header-chan{border-top:1px solid var(--line);background:linear-gradient(180deg,#fbfdff,#f5f9ff)}
.chan-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:50px}
.chan-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.chan-link{
  position:relative;padding:9px 16px;border-radius:9px;font-size:14.5px;font-weight:600;color:var(--ink-2);
  transition:color .2s ease,background .2s ease;
}
.chan-link:hover{color:var(--brand);background:#fff;box-shadow:var(--shadow-sm)}
.chan-link.active{color:#fff;background:var(--brand);box-shadow:0 8px 18px rgba(31,111,235,.26)}
.chan-link.active:hover{color:#fff;background:var(--brand-dark)}
.chan-note{font-size:12.5px;color:var(--ink-3);letter-spacing:.2px;white-space:nowrap}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(115deg,rgba(9,27,60,.94) 0%,rgba(14,43,95,.86) 52%,rgba(18,60,128,.72) 100%);
}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:68px 0 76px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.6px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#dceaff;
}
.hero h1{font-size:40px;margin:18px 0 16px;letter-spacing:-.8px;color:#fff}
.hero-lead{font-size:15.5px;line-height:1.85;color:#cfdcf3;max-width:56ch}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 18px;margin:22px 0 26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:#e3ecfb}
.hero-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:#5fd0c4;flex-shrink:0;
  box-shadow:0 0 0 4px rgba(95,208,196,.18);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-trust span{
  font-size:12.5px;color:#cddcf5;padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
}
.hero-panel{display:flex;flex-direction:column;gap:16px}
.hero-figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.24);box-shadow:var(--shadow-lg)}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.hero-card{
  background:rgba(255,255,255,.97);color:var(--ink);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.6);
}
.hero-card-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.4px;margin-bottom:12px}
.hero-card-head i{width:9px;height:9px;border-radius:50%;background:var(--accent);display:inline-block;box-shadow:0 0 0 4px rgba(15,168,154,.16)}
.hero-card-row{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;padding:7px 0;border-top:1px dashed var(--line)}
.hero-card-row:first-of-type{border-top:0}
.hero-card-row span{color:var(--ink-3)}
.hero-card-row strong{font-weight:700;color:var(--ink)}

/* ---------- section base ---------- */
.section{padding:72px 0}
.section--alt{background:var(--bg-alt)}
.section--plain{background:#fff}
.section-head{max-width:760px;margin-bottom:36px}
.section-head.center{margin-inline:auto;text-align:center}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:1px;
  color:var(--brand);background:var(--brand-soft);padding:5px 13px;border-radius:999px;margin-bottom:14px;
}
.section-tag::before{content:"";width:14px;height:2px;background:var(--brand);border-radius:2px}
.section-head h2{font-size:30px;letter-spacing:-.6px;margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:15px;line-height:1.85}

/* ---------- stats ---------- */
.stats-wrap{margin-top:-40px;position:relative;z-index:5}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);border:1px solid var(--line);
  overflow:hidden;
}
.stat{padding:26px 22px;text-align:center;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:28px;font-weight:800;color:var(--brand);letter-spacing:-.6px;line-height:1.2}
.stat span{display:block;font-size:13px;color:var(--ink-3);margin-top:6px}

/* ---------- cards grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

.card{
  background:var(--card);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;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#bcd4f5}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px;flex-shrink:0;
}
.card-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:17.5px;margin-bottom:9px}
.card p{font-size:14.2px;color:var(--ink-2);line-height:1.8}
.card .tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.tag{font-size:12px;font-weight:700;color:var(--brand);background:var(--brand-soft);padding:4px 10px;border-radius:999px}
.tag.teal{color:#0b7f75;background:#e2f7f4}

/* ---------- channel entry ---------- */
.channel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#bcd4f5}
.channel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.channel-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.channel-body h3{font-size:18px;margin-bottom:10px}
.channel-body p{font-size:14px;color:var(--ink-2);flex:1}
.channel-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:800;color:var(--brand);margin-top:16px}
.channel-link::after{content:"→";transition:transform .2s ease}
.channel-card:hover .channel-link::after{transform:translateX(4px)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 22px 24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-16px;left:22px;
  font-size:13px;font-weight:800;color:#fff;background:var(--brand);
  padding:4px 11px;border-radius:999px;box-shadow:0 8px 16px rgba(31,111,235,.28);
}
.step h4{font-size:16px;margin:8px 0 9px}
.step p{font-size:13.8px;color:var(--ink-2)}

/* ---------- scenario ---------- */
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.scene-card .scene-body{padding:22px}
.scene-card h3{font-size:17px;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--ink-2)}

/* ---------- checklist ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 26px;margin-top:6px}
.check-list li{display:flex;gap:11px;align-items:flex-start;font-size:14.3px;color:var(--ink-2);line-height:1.7}
.check-list li::before{
  content:"";width:18px;height:18px;border-radius:50%;flex-shrink:0;margin-top:4px;
  background:var(--brand-soft) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231f6feb' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/11px no-repeat;
}

/* ---------- compare table ---------- */
.compare{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.compare table{width:100%;border-collapse:collapse}
.compare th,.compare td{padding:16px 20px;text-align:left;font-size:14.2px;border-bottom:1px solid var(--line);vertical-align:top}
.compare thead th{background:#f2f7ff;font-weight:800;color:var(--ink);font-size:14px}
.compare thead th:nth-child(3){color:var(--brand)}
.compare tbody tr:last-child td{border-bottom:0}
.compare tbody tr:hover td{background:#fafcff}
.compare td:first-child{font-weight:700;color:var(--ink);width:22%}
.compare td:nth-child(2){color:var(--ink-3)}
.compare td:nth-child(3){color:var(--ink-2)}

/* ---------- testimonials ---------- */
.quote-card{background:#fff;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}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.stars{color:#f5a623;font-size:14px;letter-spacing:2px;margin-bottom:12px}
.quote-card p{font-size:14.3px;color:var(--ink-2);line-height:1.85}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:800;font-size:14px}
.quote-meta strong{font-size:13.5px;display:block;line-height:1.3}
.quote-meta small{font-size:12px;color:var(--ink-3)}

/* ---------- result wall ---------- */
.result-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.result-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.result-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.result-top span{font-size:12.5px;font-weight:800;color:var(--brand);background:var(--brand-soft);padding:4px 11px;border-radius:999px}
.result-top em{font-style:normal;font-size:12.5px;color:var(--ink-3)}
.result-card h4{font-size:16px;margin-bottom:8px}
.result-card p{font-size:13.9px;color:var(--ink-2)}

/* ---------- coordinate panel ---------- */
.coord-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);
  overflow:hidden;
}
.coord-head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 26px;background:linear-gradient(120deg,#f2f7ff,#e9f1ff);border-bottom:1px solid var(--line);
}
.coord-head h3{font-size:17px}
.coord-head span{font-size:12.5px;color:var(--ink-3)}
.coord-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0}
.coord-item{padding:20px 26px;border-top:1px solid var(--line);border-left:1px solid var(--line);transition:background .2s ease}
.coord-item:nth-child(odd){border-left:0}
.coord-item:hover{background:#fafcff}
.coord-item h4{font-size:15px;display:flex;align-items:center;gap:8px;margin-bottom:8px}
.coord-item h4 b{width:6px;height:6px;border-radius:50%;background:var(--brand);flex-shrink:0}
.coord-item dl{display:flex;flex-wrap:wrap;gap:6px 20px;margin:0;font-size:13.5px;color:var(--ink-2)}
.coord-item dl div{display:flex;gap:6px}
.coord-item dt{color:var(--ink-3)}
.coord-item dd{margin:0;font-weight:700;color:var(--ink)}

/* ---------- rewards ---------- */
.reward-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);display:flex;gap:14px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bcd4f5}
.reward-icon{width:40px;height:40px;border-radius:11px;background:#e2f7f4;color:#0b7f75;display:grid;place-items:center;flex-shrink:0}
.reward-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.reward-card h4{font-size:15.5px;margin-bottom:6px}
.reward-card p{font-size:13.6px;color:var(--ink-2)}

/* ---------- calendar ---------- */
.calendar{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cal-item{background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:var(--radius-sm);padding:20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.cal-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.cal-item time{font-size:12.5px;font-weight:800;color:var(--brand);letter-spacing:.4px}
.cal-item h4{font-size:15px;margin:8px 0 6px}
.cal-item p{font-size:13.5px;color:var(--ink-2)}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:start}
.news-main{display:grid;gap:16px}
.news-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bcd4f5}
.news-link{display:flex;gap:18px;padding:16px;align-items:flex-start}
.news-thumb{width:132px;flex-shrink:0;border-radius:var(--radius-sm);overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.news-body{flex:1;min-width:0}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:7px;flex-wrap:wrap}
.badge{font-size:11.8px;font-weight:800;color:var(--brand);background:var(--brand-soft);padding:3px 10px;border-radius:999px}
.news-meta time{font-size:12px;color:var(--ink-3)}
.news-body h3{font-size:16px;margin-bottom:6px;line-height:1.45}
.news-body p{font-size:13.5px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.news-side h3{font-size:16px;margin-bottom:6px}
.news-side>p{font-size:13.2px;color:var(--ink-3);margin-bottom:14px}
.side-item{display:block;padding:13px 0;border-top:1px dashed var(--line);transition:padding-left .2s ease}
.side-item:hover{padding-left:5px}
.side-item h4{font-size:14px;line-height:1.5;margin-bottom:4px;color:var(--ink)}
.side-item:hover h4{color:var(--brand)}
.side-item span{font-size:12px;color:var(--ink-3)}
.empty-note{padding:26px;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--ink-3);font-size:14px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin-inline:auto}
.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,box-shadow .2s ease}
.faq-item[open]{border-color:#bcd4f5;box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 24px;font-size:15.5px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--brand);line-height:1;flex-shrink:0;transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 24px 20px;font-size:14.2px;color:var(--ink-2);line-height:1.85}

/* ---------- assurance ---------- */
.assurance{background:linear-gradient(120deg,#0f2b5c,#1450b8);color:#fff;border-radius:var(--radius-lg);padding:44px 40px;box-shadow:var(--shadow-lg)}
.assurance h2{font-size:26px;margin-bottom:12px;color:#fff}
.assurance p{color:#cfdcf3;font-size:14.6px;max-width:70ch}
.assurance-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.assurance-item{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius);padding:20px}
.assurance-item h4{font-size:15px;margin-bottom:6px;color:#fff}
.assurance-item p{font-size:13.5px;color:#c8d8f2}

/* ---------- footer ---------- */
.site-footer{background:#0c1c36;color:#b9c8e0;margin-top:0;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:42px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:#8ea3c2}
.footer-brand p{font-size:13.6px;color:#93a7c4;margin-top:16px;line-height:1.85;max-width:34ch}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:14px;letter-spacing:.4px}
.footer-col a{display:block;font-size:13.6px;color:#a7b9d4;padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:12.8px;color:#8296b4}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}

/* ---------- fixed cta ---------- */
.fixed-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  backdrop-filter:blur(10px);box-shadow:0 -8px 26px rgba(18,46,96,.1);
  transform:translateY(0);transition:transform .3s ease;
}
.fixed-cta.hide{transform:translateY(110%)}
.fixed-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 0}
.fixed-cta-inner p{display:flex;flex-direction:column;line-height:1.4}
.fixed-cta-inner strong{font-size:14.5px}
.fixed-cta-inner span{font-size:12.2px;color:var(--ink-3)}
.fixed-cta-actions{display:flex;align-items:center;gap:10px}
.fixed-cta-close{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);
  color:var(--ink-3);font-size:18px;line-height:1;display:grid;place-items:center;transition:.2s;
}
.fixed-cta-close:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft)}
body{padding-bottom:76px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:52px 0 60px}
  .hero h1{font-size:33px}
  .grid-3,.grid-4,.steps,.calendar,.assurance-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(4){border-top:1px solid var(--line)}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{width:min(var(--container),100% - 32px)}
  .nav-toggle{display:flex}
  .header-chan{display:none}
  .header-chan.open{display:block;animation:dropIn .22s ease}
  @keyframes dropIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
  .chan-inner{flex-direction:column;align-items:flex-start;padding:12px 0 16px;gap:12px}
  .chan-nav{flex-direction:column;width:100%;gap:4px}
  .chan-link{width:100%;padding:11px 14px}
  .chan-note{white-space:normal}
  .hero h1{font-size:27px;letter-spacing:-.4px}
  .hero-lead{font-size:14.6px}
  .section{padding:52px 0}
  .section-head h2{font-size:23px}
  .grid-3,.grid-4,.grid-2,.steps,.calendar,.assurance-grid,.coord-list,.check-list{grid-template-columns:1fr}
  .coord-item{border-left:0}
  .stats-wrap{margin-top:-24px}
  .compare{overflow-x:auto}
  .compare table{min-width:560px}
  .news-link{flex-direction:column;gap:12px}
  .news-thumb{width:100%}
  .news-thumb img{aspect-ratio:16/9}
  .assurance{padding:32px 22px}
  .fixed-cta-inner{flex-direction:column;align-items:stretch;gap:10px;padding:12px 0 14px}
  .fixed-cta-actions{justify-content:space-between}
  .fixed-cta-actions .btn{flex:1}
  body{padding-bottom:126px}
}
@media (max-width:520px){
  .hero h1{font-size:24px}
  .brand-text strong{font-size:14.5px}
  .brand-text small{display:none}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom .container{flex-direction:column}
  .stat b{font-size:23px}
  .section-head h2{font-size:21px}
}

/* roulang page: article */
:root{
 --bg:#f5f8fd;
 --bg-alt:#eef4fe;
 --card:#ffffff;
 --ink:#0e1a2f;
 --ink-2:#41536e;
 --ink-3:#7b8ca6;
 --brand:#1f6feb;
 --brand-dark:#1450b8;
 --brand-soft:#e9f1ff;
 --accent:#0fa89a;
 --line:#e2eaf6;
 --line-strong:#cfdcf0;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(18,46,96,.06);
 --shadow:0 10px 28px rgba(18,46,96,.09);
 --shadow-lg:0 18px 44px rgba(18,46,96,.14);
 --container:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:15px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:800;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(31,111,235,.45);outline-offset:2px;border-radius:6px}
.container{width:min(var(--container),100% - 44px);margin-inline:auto}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
 border:1px solid transparent;white-space:nowrap;min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(31,111,235,.28)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(31,111,235,.34);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(31,111,235,.3)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);color:#fff}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);color:var(--brand-dark)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(18,46,96,.10)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:11px;flex-shrink:0;
 background:linear-gradient(140deg,#2f83ff,#1450b8);
 color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;
 box-shadow:0 6px 14px rgba(31,111,235,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand-text small{font-size:11.5px;color:var(--ink-3);letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-strong);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.header-chan{border-top:1px solid var(--line);background:linear-gradient(180deg,#fbfdff,#f5f9ff)}
.chan-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px}
.chan-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.chan-link{font-size:13.5px;font-weight:600;color:var(--ink-2);padding:8px 14px;border-radius:8px;transition:.2s}
.chan-link:hover{background:var(--brand-soft);color:var(--brand)}
.chan-link.active{background:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(31,111,235,.26)}
.chan-note{font-size:12px;color:var(--ink-3);white-space:nowrap}

/* ---------- article hero ---------- */
.article-hero{position:relative;isolation:isolate;overflow:hidden;color:#fff;padding:46px 0 66px}
.article-hero-bg{
 position:absolute;inset:0;z-index:-2;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
}
.article-hero::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(118deg,rgba(9,27,60,.95) 0%,rgba(14,43,95,.88) 55%,rgba(18,60,128,.74) 100%);
}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:#b7c9e8;margin-bottom:20px}
.crumbs a{color:#b7c9e8}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.55}
.crumbs .now{color:#dfe9fb}
.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:16px}
.tag-pill{
 display:inline-flex;align-items:center;gap:7px;
 font-size:12.5px;font-weight:700;letter-spacing:.4px;
 padding:5px 13px;border-radius:999px;
 background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);color:#dbe8fb;
}
.tag-pill.is-accent{background:rgba(15,168,154,.22);border-color:rgba(95,208,196,.55);color:#c6f4ef}
.article-title{font-size:36px;line-height:1.28;color:#fff;max-width:24ch;margin-bottom:16px}
.article-desc{max-width:70ch;font-size:15px;line-height:1.85;color:#cddcf3}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;font-size:13px;color:#b7c9e8}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:#5fd0c4;box-shadow:0 0 0 3px rgba(95,208,196,.18)}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section--alt{background:var(--bg-alt)}
.section--plain{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-size:26px;display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:5px;height:24px;border-radius:3px;background:linear-gradient(180deg,#2f83ff,#1450b8);display:inline-block}
.section-head p{font-size:14px;color:var(--ink-3);max-width:56ch;margin-top:8px}

/* ---------- quick facts ---------- */
.facts-wrap{margin-top:-38px;position:relative;z-index:5}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.fact-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:20px 22px;box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.fact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--line-strong)}
.fact-label{font-size:12.5px;color:var(--ink-3);font-weight:600;letter-spacing:.3px}
.fact-value{font-size:24px;font-weight:800;color:var(--brand-dark);margin:8px 0 4px;letter-spacing:-.4px}
.fact-note{font-size:12.5px;color:var(--ink-2)}

/* ---------- article body ---------- */
.article-shell{max-width:880px;margin-inline:auto}
.pull-quote{
 margin:0 0 32px;padding:20px 24px 20px 26px;
 border-left:4px solid var(--brand);
 background:linear-gradient(90deg,var(--brand-soft),rgba(233,241,255,.25));
 border-radius:0 var(--radius) var(--radius) 0;
 font-size:16.5px;font-weight:600;color:var(--brand-dark);line-height:1.8;
}
.article-content{font-size:15.5px;line-height:1.85;color:var(--ink-2)}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 18px}
.article-content h2{
 font-size:22px;color:var(--ink);margin:36px 0 14px;padding-left:14px;
 border-left:4px solid var(--brand);line-height:1.45;
}
.article-content h3{font-size:18px;color:var(--ink);margin:26px 0 12px}
.article-content strong{color:var(--brand-dark);font-weight:700}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:6px}
.article-content ul li,.article-content ol li{position:relative;padding-left:20px;margin-bottom:10px}
.article-content ul li::before{
 content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
 background:var(--accent);transform:rotate(45deg);
}
.article-content ol{counter-reset:ac}
.article-content ol li{counter-increment:ac}
.article-content ol li::before{
 content:counter(ac);position:absolute;left:0;top:.18em;
 width:16px;height:16px;border-radius:5px;background:var(--brand-soft);color:var(--brand-dark);
 font-size:11px;font-weight:800;display:grid;place-items:center;
}
.article-content img{margin:22px 0;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.article-content blockquote{
 margin:24px 0;padding:18px 22px;background:var(--bg-alt);border-radius:var(--radius);
 border:1px solid var(--line);color:var(--ink-2);font-size:15px;
}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article-content th,.article-content td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-content th{background:var(--bg-alt);color:var(--ink);font-weight:700}
.article-content a{color:var(--brand);font-weight:600;border-bottom:1px solid rgba(31,111,235,.3)}
.article-content a:hover{color:var(--brand-dark);border-color:var(--brand-dark)}
.article-empty{
 text-align:center;padding:52px 24px;background:var(--bg-alt);
 border:1px dashed var(--line-strong);border-radius:var(--radius-lg);
}
.article-empty h2{font-size:22px;margin-bottom:12px;color:var(--ink)}
.article-empty p{color:var(--ink-2);margin-bottom:22px}

/* ---------- coord cards ---------- */
.coord-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.coord-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.coord-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#bfd6f8}
.coord-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.coord-index{
 width:34px;height:34px;border-radius:10px;flex-shrink:0;
 background:var(--brand-soft);color:var(--brand-dark);
 display:grid;place-items:center;font-weight:800;font-size:14px;
}
.coord-head h3{font-size:17px;color:var(--ink)}
.coord-pos{
 font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
 font-size:15px;font-weight:700;color:var(--accent);
 background:#f0fbf9;border:1px solid #d5f2ee;border-radius:8px;
 padding:8px 12px;margin-bottom:14px;display:inline-block;
}
.coord-note{font-size:14px;color:var(--ink-2);line-height:1.8;margin-bottom:16px}
.coord-tags{display:flex;flex-wrap:wrap;gap:8px}
.coord-tags li{
 font-size:12px;font-weight:600;color:var(--ink-2);
 background:var(--bg-alt);border:1px solid var(--line);border-radius:999px;padding:4px 11px;
}

/* ---------- steps ---------- */
.step-list{display:grid;gap:16px;max-width:900px;margin-inline:auto}
.step-item{
 display:flex;gap:18px;align-items:flex-start;
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bfd6f8}
.step-num{
 flex-shrink:0;width:38px;height:38px;border-radius:12px;
 background:linear-gradient(140deg,#2f83ff,#1450b8);color:#fff;
 display:grid;place-items:center;font-weight:800;font-size:16px;
 box-shadow:0 6px 14px rgba(31,111,235,.26);
}
.step-item h3{font-size:16.5px;margin-bottom:6px;color:var(--ink)}
.step-item p{font-size:14px;color:var(--ink-2);line-height:1.8}

/* ---------- rewards ---------- */
.reward-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reward-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.reward-card::after{
 content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;
 background:radial-gradient(circle,rgba(31,111,235,.12),rgba(31,111,235,0) 70%);
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#bfd6f8}
.reward-tag{
 display:inline-block;font-size:12px;font-weight:700;color:var(--brand-dark);
 background:var(--brand-soft);border-radius:999px;padding:4px 11px;margin-bottom:12px;
}
.reward-card h3{font-size:17px;margin-bottom:14px;color:var(--ink)}
.reward-card li{
 font-size:14px;color:var(--ink-2);padding:8px 0;border-top:1px dashed var(--line);
 display:flex;justify-content:space-between;gap:14px;
}
.reward-card li:first-child{border-top:0}
.reward-card li strong{color:var(--brand-dark);font-weight:700}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin-inline:auto;display:grid;gap:14px}
.faq-item{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#bfd6f8;box-shadow:var(--shadow)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 56px 18px 22px;position:relative;
 font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;
 border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
 transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--brand)}
.faq-item p{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{
 position:relative;isolation:isolate;overflow:hidden;color:#fff;padding:56px 0;
 background:linear-gradient(115deg,#0f2a58 0%,#17417f 60%,#1a55a3 100%);
}
.cta-band::after{
 content:"";position:absolute;inset:0;z-index:-1;
 background-image:url('/assets/images/backpic/back-5.webp');
 background-size:cover;background-position:center;opacity:.16;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:26px;color:#fff;margin-bottom:10px}
.cta-inner p{font-size:14.5px;color:#cddcf3;max-width:60ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#0b1a33;color:#c4d4ec;padding-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;padding:56px 0 40px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:#8fa4c3}
.footer-brand p{font-size:13.5px;color:#9db2ce;line-height:1.85;margin-top:16px;max-width:34ch}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.3px}
.footer-col a{display:block;font-size:13.5px;color:#a9bcd8;padding:6px 0;transition:.2s}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0}
.footer-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#8fa4c3}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .facts-grid{grid-template-columns:repeat(2,1fr)}
 .coord-grid,.reward-grid{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .article-title{font-size:32px}
}
@media (max-width:768px){
 .nav-toggle{display:flex}
 .header-chan{display:none}
 .header-chan.is-open{display:block}
 .chan-inner{flex-direction:column;align-items:flex-start;padding:10px 0;min-height:0}
 .chan-nav{width:100%}
 .chan-link{padding:10px 14px}
 .chan-note{display:none}
 .article-hero{padding:34px 0 52px}
 .article-title{font-size:26px;max-width:none}
 .article-desc{font-size:14px}
 .section{padding:48px 0}
 .section-head h2{font-size:22px}
 .facts-wrap{margin-top:-30px}
 .facts-grid{grid-template-columns:1fr 1fr;gap:14px}
 .coord-grid,.reward-grid{grid-template-columns:1fr}
 .cta-inner{flex-direction:column;align-items:flex-start}
 .cta-actions .btn{width:100%}
 .pull-quote{font-size:15px;padding:16px 18px}
 .article-content h2{font-size:20px}
}
@media (max-width:520px){
 .container{width:calc(100% - 32px)}
 .header-top{min-height:60px}
 .brand-text strong{font-size:14.5px}
 .brand-text small{display:none}
 .facts-grid{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 30px}
 .article-meta{font-size:12.5px;gap:8px 16px}
 .step-item{flex-direction:row;padding:18px}
 .section-head h2{font-size:20px}
}

/* roulang page: category1 */
:root{
 --bg:#f5f8fd;
 --bg-alt:#eef4fe;
 --card:#ffffff;
 --ink:#0e1a2f;
 --ink-2:#41536e;
 --ink-3:#7b8ca6;
 --brand:#1f6feb;
 --brand-dark:#1450b8;
 --brand-soft:#e9f1ff;
 --accent:#0fa89a;
 --line:#e2eaf6;
 --line-strong:#cfdcf0;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(18,46,96,.06);
 --shadow:0 10px 28px rgba(18,46,96,.09);
 --shadow-lg:0 18px 44px rgba(18,46,96,.14);
 --container:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:15px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid rgba(31,111,235,.45);outline-offset:3px;border-radius:6px}
.container{width:min(var(--container),100% - 44px);margin-inline:auto}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
 border:1px solid transparent;white-space:nowrap;min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(31,111,235,.28)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(31,111,235,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(31,111,235,.3)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(18,46,96,.10)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:11px;flex-shrink:0;
 background:linear-gradient(140deg,#2f83ff,#1450b8);
 color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;
 box-shadow:0 6px 14px rgba(31,111,235,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand-text small{font-size:11.5px;color:var(--ink-3);letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-strong);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.header-chan{border-top:1px solid var(--line);background:linear-gradient(180deg,#fbfdff,#f5f9ff)}
.chan-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:9px 0;flex-wrap:wrap}
.chan-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.chan-link{
 display:inline-flex;align-items:center;min-height:38px;
 padding:8px 15px;border-radius:999px;font-size:14px;font-weight:700;color:var(--ink-2);
 transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.chan-link:hover{background:var(--brand-soft);color:var(--brand)}
.chan-link.active{background:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(31,111,235,.26)}
.chan-note{font-size:12.5px;color:var(--ink-3);letter-spacing:.2px}
/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;isolation:isolate}
.hero-bg{
 position:absolute;inset:0;z-index:-2;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
}
.hero::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(115deg,rgba(9,27,60,.94) 0%,rgba(14,43,95,.88) 52%,rgba(18,60,128,.74) 100%);
}
.hero-inner{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;padding:64px 0 70px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.6px;
 background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#dceaff;
}
.hero h1{font-size:38px;line-height:1.28;margin:18px 0 16px;letter-spacing:-.6px;color:#fff}
.hero-lead{font-size:15.5px;line-height:1.85;color:#cfdcf3;max-width:56ch}
.checklist{display:grid;gap:10px;margin:22px 0 26px;max-width:520px}
.checklist li{
 display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#e6eefb;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
 border-radius:10px;padding:9px 13px;
}
.checklist .tick{
 width:18px;height:18px;border-radius:6px;flex-shrink:0;margin-top:3px;
 background:rgba(95,208,196,.2);border:1px solid rgba(95,208,196,.6);
 display:grid;place-items:center;font-size:11px;color:#8ff0e4;font-weight:800;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-trust span{
 font-size:12.5px;color:#cddcf5;padding:6px 13px;border-radius:999px;
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
}
.hero-panel{
 background:rgba(255,255,255,.97);color:var(--ink);border-radius:var(--radius-lg);
 padding:22px 22px 18px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.7);
}
.hero-panel h2{font-size:15px;font-weight:800;letter-spacing:.2px;display:flex;align-items:center;gap:8px}
.hero-panel h2 i{width:9px;height:9px;border-radius:50%;background:var(--accent);display:inline-block;box-shadow:0 0 0 4px rgba(15,168,154,.16)}
.hero-panel .panel-sub{font-size:12.5px;color:var(--ink-3);margin-top:4px}
.panel-rows{margin-top:14px}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px dashed var(--line);font-size:13.5px}
.panel-row:first-child{border-top:0}
.panel-row span{color:var(--ink-3)}
.panel-row strong{font-weight:800;color:var(--ink)}
.panel-row em{font-style:normal;color:var(--brand);font-weight:800}
.hero-figure{margin:16px 0 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
/* ---------- section ---------- */
.section{padding:72px 0}
.section--alt{background:var(--bg-alt)}
.section--plain{background:#fff}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section-tag{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
 letter-spacing:1px;color:var(--brand);text-transform:uppercase;
}
.section-tag::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
.section-head h2{font-size:27px;line-height:1.35;margin:12px 0 10px;letter-spacing:-.3px}
.section-head p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
/* ---------- spot 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}
.spot-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.spot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.spot-card figure{margin:0;overflow:hidden}
.spot-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .3s ease}
.spot-card:hover img{transform:scale(1.03)}
.spot-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.spot-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.badge{
 display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
 font-size:12px;font-weight:700;background:var(--brand-soft);color:var(--brand-dark);
}
.badge--accent{background:rgba(15,168,154,.12);color:#0b7d72}
.badge--muted{background:#f1f4fa;color:var(--ink-3)}
.spot-card h3{font-size:16.5px;font-weight:800;line-height:1.45}
.spot-card p{font-size:13.8px;color:var(--ink-2);line-height:1.75}
.spot-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line)}
.spot-meta span{font-size:12.5px;color:var(--ink-3)}
.spot-meta b{color:var(--ink);font-weight:800}
/* ---------- feature cards ---------- */
.feature-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.feature-icon{
 width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand);margin-bottom:16px;
 font-weight:800;font-size:16px;border:1px solid rgba(31,111,235,.18);
}
.feature-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--ink-2);line-height:1.78}
/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split-figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.split-body h2{font-size:26px;line-height:1.36;margin-bottom:14px;letter-spacing:-.3px}
.split-body p{font-size:14.5px;color:var(--ink-2);line-height:1.85;margin-bottom:14px}
.mini-list{display:grid;gap:12px;margin-top:6px}
.mini-list li{
 display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-sm);padding:13px 15px;box-shadow:var(--shadow-sm);
}
.mini-list .num{
 flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
 background:var(--brand);color:#fff;font-size:12.5px;font-weight:800;
}
.mini-list strong{display:block;font-size:14.5px;font-weight:800;margin-bottom:2px}
.mini-list span{font-size:13.5px;color:var(--ink-2);line-height:1.7}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 20px;box-shadow:var(--shadow-sm);position:relative;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.step::before{
 counter-increment:step;content:counter(step,decimal-leading-zero);
 display:block;font-size:24px;font-weight:800;color:var(--brand);letter-spacing:-1px;margin-bottom:10px;
}
.step h3{font-size:15.5px;font-weight:800;margin-bottom:8px}
.step p{font-size:13.8px;color:var(--ink-2);line-height:1.75}
/* ---------- compare ---------- */
.compare{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-sm);
}
.compare-row{display:grid;grid-template-columns:.9fr 1.1fr 1.1fr;gap:0}
.compare-row > div{padding:16px 20px;border-top:1px solid var(--line);font-size:14px;line-height:1.7}
.compare-row:first-child > div{border-top:0}
.compare-head{background:var(--bg-alt)}
.compare-head > div{font-size:13px;font-weight:800;color:var(--ink-2);letter-spacing:.4px}
.compare-row .topic{font-weight:800;color:var(--ink);background:#fbfdff}
.compare-row .bad{color:#8a5a5a}
.compare-row .good{color:#0b7d72;font-weight:600}
/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 20px;text-align:center;box-shadow:var(--shadow-sm);
}
.stat strong{display:block;font-size:30px;font-weight:800;color:var(--brand);letter-spacing:-1px;line-height:1.2}
.stat span{display:block;font-size:13.5px;color:var(--ink-2);margin-top:6px}
/* ---------- faq ---------- */
.faq{display:grid;gap:14px}
.faq details{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:0 20px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq summary{
 cursor:pointer;list-style:none;padding:17px 30px 17px 0;position:relative;
 font-size:15.5px;font-weight:800;line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";position:absolute;right:0;top:14px;font-size:22px;font-weight:700;color:var(--brand);
 transition:transform .2s ease;
}
.faq details[open] summary::after{content:"−"}
.faq .answer{padding:0 0 18px;font-size:14px;color:var(--ink-2);line-height:1.85}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
 display:flex;flex-direction:column;gap:10px;
 background:#fff;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,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.news-card h3{font-size:16px;font-weight:800;line-height:1.5}
.news-card p{font-size:13.8px;color:var(--ink-2);line-height:1.75}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--ink-3)}
.news-meta .cat{color:var(--brand);font-weight:700}
.news-empty{
 background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius);
 padding:26px;text-align:center;color:var(--ink-3);font-size:14px;
}
/* ---------- cta ---------- */
.cta-band{
 background:linear-gradient(120deg,#102a56,#1b4b9c 60%,#1f6feb);
 color:#fff;border-radius:var(--radius-lg);padding:44px 46px;
 display:flex;align-items:center;justify-content:space-between;gap:32px;
 box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:25px;line-height:1.4;margin-bottom:10px;letter-spacing:-.3px}
.cta-band p{font-size:14.5px;color:#cfdcf3;line-height:1.8;max-width:60ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}
/* ---------- footer ---------- */
.site-footer{background:#0b1729;color:#b9c8de;margin-top:0;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:#7f92ae}
.footer-brand p{font-size:13.8px;line-height:1.85;color:#93a5c0;max-width:38ch}
.footer-col h4{font-size:14px;color:#fff;font-weight:800;margin-bottom:14px;letter-spacing:.4px}
.footer-col a{display:block;font-size:13.8px;color:#93a5c0;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0 24px}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7f92ae}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:34px;padding:52px 0 58px}
 .hero h1{font-size:33px}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .news-grid{grid-template-columns:repeat(2,1fr)}
 .steps{grid-template-columns:repeat(2,1fr)}
 .stats{grid-template-columns:repeat(2,1fr)}
 .split{grid-template-columns:1fr;gap:28px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px}
}
@media (max-width:768px){
 .nav-toggle{display:flex}
 .header-chan{display:none}
 .header-chan.open{display:block}
 .chan-inner{padding:12px 0}
 .chan-note{display:none}
 .hero h1{font-size:28px}
 .hero-lead{font-size:14.5px}
 .section{padding:52px 0}
 .section-head{margin-bottom:28px}
 .section-head h2{font-size:22px}
 .grid-3,.grid-2,.news-grid,.steps,.stats{grid-template-columns:1fr}
 .compare-row{grid-template-columns:1fr}
 .compare-row > div{border-top:1px solid var(--line)}
 .compare-head{display:none}
 .compare-row .topic{background:var(--bg-alt)}
 .footer-grid{grid-template-columns:1fr}
 .cta-band h2{font-size:21px}
}
@media (max-width:520px){
 .container{width:min(var(--container),100% - 30px)}
 .brand-text small{display:none}
 .hero h1{font-size:24px}
 .hero-actions .btn{width:100%}
 .cta-actions{width:100%}
 .cta-actions .btn{width:100%}
 .footer-bottom .container{flex-direction:column;align-items:flex-start;gap:6px}
}

/* roulang page: category3 */
:root{
 --bg:#f5f8fd;
 --bg-alt:#eef4fe;
 --card:#ffffff;
 --ink:#0e1a2f;
 --ink-2:#41536e;
 --ink-3:#7b8ca6;
 --brand:#1f6feb;
 --brand-dark:#1450b8;
 --brand-soft:#e9f1ff;
 --accent:#0fa89a;
 --line:#e2eaf6;
 --line-strong:#cfdcf0;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(18,46,96,.06);
 --shadow:0 10px 28px rgba(18,46,96,.09);
 --shadow-lg:0 18px 44px rgba(18,46,96,.14);
 --container:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:15px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container{width:min(var(--container),100% - 44px);margin-inline:auto}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
 border:1px solid transparent;white-space:nowrap;min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(31,111,235,.28)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(31,111,235,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(31,111,235,.3)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(18,46,96,.10)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:11px;flex-shrink:0;
 background:linear-gradient(140deg,#2f83ff,#1450b8);
 color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;
 box-shadow:0 6px 14px rgba(31,111,235,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand-text small{font-size:11.5px;color:var(--ink-3);letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-strong);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.header-chan{border-top:1px solid var(--line);background:linear-gradient(180deg,#fbfdff,#f5f9ff)}
.chan-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.chan-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.chan-link{position:relative;padding:11px 16px;font-size:14px;font-weight:600;color:var(--ink-2);border-radius:9px;transition:color .2s ease,background .2s ease}
.chan-link:hover{color:var(--brand);background:var(--brand-soft)}
.chan-link.active{color:var(--brand);font-weight:800}
.chan-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;background:var(--brand)}
.chan-note{font-size:12.5px;color:var(--ink-3);white-space:nowrap}

/* ---------- category hero ---------- */
.cat-hero{position:relative;overflow:hidden;isolation:isolate;color:#fff;background:#0b1a33}
.cat-hero-bg{
 position:absolute;inset:0;z-index:-2;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
}
.cat-hero::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(118deg,rgba(7,20,44,.95) 0%,rgba(11,36,80,.88) 55%,rgba(16,52,110,.72) 100%);
}
.cat-hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:56px 0 64px}
.crumbs{display:flex;gap:8px;font-size:12.5px;color:#a9bdd9;margin-bottom:16px;flex-wrap:wrap}
.crumbs a{transition:color .2s}
.crumbs a:hover{color:#fff}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.6px;
 background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#dceaff;
}
.cat-hero h1{font-size:37px;line-height:1.3;margin:16px 0 14px;letter-spacing:-.6px;color:#fff}
.cat-hero-lead{font-size:15.5px;line-height:1.85;color:#c8d8f0;max-width:54ch;margin:0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 26px}
.tag{font-size:12.5px;color:#cfe0f8;padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2)}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.poster{position:relative;margin:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.22);box-shadow:var(--shadow-lg)}
.poster img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:0}
.poster-badge{
 position:absolute;left:14px;bottom:14px;display:inline-flex;align-items:center;gap:7px;
 background:rgba(9,24,50,.78);border:1px solid rgba(255,255,255,.28);color:#fff;
 font-size:12.5px;padding:6px 12px;border-radius:999px;backdrop-filter:blur(6px);
}
.poster-badge i{width:7px;height:7px;border-radius:50%;background:#5fd0c4;display:inline-block}
.hero-facts{list-style:none;margin:16px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.hero-facts li{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-sm);padding:11px 8px;text-align:center}
.hero-facts strong{display:block;font-size:20px;color:#fff;line-height:1.3}
.hero-facts span{font-size:11.5px;color:#b8cbe6}

/* ---------- section base ---------- */
.section{padding:72px 0}
.section--alt{background:var(--bg-alt)}
.section--plain{background:#fff}
.section-head{max-width:740px;margin-bottom:38px}
.kicker{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:1.2px;color:var(--brand);background:var(--brand-soft);padding:5px 12px;border-radius:999px}
.section-head h2{font-size:28px;line-height:1.38;margin:14px 0 10px;letter-spacing:-.4px}
.section-head p{margin:0;color:var(--ink-2);font-size:15px}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.card-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin-bottom:14px}
.card-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:17.5px;margin:0 0 8px;line-height:1.45}
.card p{margin:0;color:var(--ink-2);font-size:14.5px}
.card strong{color:var(--brand)}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{font-size:12px;padding:4px 10px;border-radius:999px;background:var(--bg-alt);color:var(--ink-2);border:1px solid var(--line)}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;counter-reset:step}
.steps li{
 position:relative;padding:15px 18px 15px 58px;background:#fff;
 border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.steps li:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.steps li::before{
 counter-increment:step;content:counter(step);
 position:absolute;left:16px;top:15px;width:28px;height:28px;border-radius:9px;
 background:var(--brand);color:#fff;font-size:13px;font-weight:800;display:grid;place-items:center;
}
.steps strong{display:block;font-size:15px;margin-bottom:2px}
.steps span{font-size:13.5px;color:var(--ink-2);display:block}
.figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:#fff}
.figure img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:0}
.figure figcaption{padding:12px 18px;font-size:13px;color:var(--ink-3);background:#fff;border-top:1px solid var(--line)}

/* ---------- stats & quotes ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:30px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow-sm)}
.stat strong{display:block;font-size:26px;color:var(--brand);letter-spacing:-.5px;line-height:1.3}
.stat span{font-size:13px;color:var(--ink-3)}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.quote:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.quote p{margin:0 0 14px;font-size:14.5px;color:var(--ink-2)}
.quote-by{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:800;font-size:13px;flex-shrink:0}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.compare-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.compare-col:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.compare-col header{padding:15px 22px;background:var(--bg-alt);border-bottom:1px solid var(--line);font-weight:800;font-size:15.5px;display:flex;justify-content:space-between;gap:12px;align-items:center}
.compare-col.is-accent header{background:linear-gradient(120deg,#1f6feb,#1450b8);color:#fff;border-bottom-color:transparent}
.compare-col header em{font-style:normal;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:rgba(255,255,255,.22);color:#fff}
.compare-col header em.dark{background:var(--brand-soft);color:var(--brand)}
.compare-col ul{list-style:none;margin:0;padding:10px 22px 22px}
.compare-col li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--ink-2);display:flex;gap:10px;align-items:flex-start}
.compare-col li:last-child{border-bottom:0}
.compare-col li::before{content:"";width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--accent);flex:0 0 6px}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;
 box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.post-card h3{font-size:16px;margin:0 0 8px;line-height:1.55}
.post-card h3 a{transition:color .2s}
.post-card h3 a:hover{color:var(--brand)}
.post-card p{margin:0 0 16px;font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--ink-3);margin-top:auto;padding-top:12px;border-top:1px dashed var(--line)}
.empty-tip{margin:0;padding:24px;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--ink-3);font-size:14px;text-align:center}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease}
.faq details[open]{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq summary{list-style:none;cursor:pointer;padding:16px 0;font-weight:700;font-size:15px;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--brand);line-height:1;transition:transform .2s ease}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 0 18px;color:var(--ink-2);font-size:14.5px;margin:0}

/* ---------- assure ---------- */
.assure{
 background:linear-gradient(120deg,#0e2a5c,#1f6feb);color:#fff;border-radius:var(--radius-lg);
 padding:34px 36px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
 box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.14);
}
.assure h2{font-size:22px;margin:0 0 8px;letter-spacing:-.3px}
.assure p{margin:0;color:#d3e0f6;font-size:14.5px;max-width:60ch}
.assure .btn-ghost{flex-shrink:0}

/* ---------- sticky cta ---------- */
.sticky-cta{
 position:fixed;left:0;right:0;bottom:0;z-index:70;
 background:rgba(255,255,255,.96);border-top:1px solid var(--line);
 box-shadow:0 -8px 24px rgba(18,46,96,.10);backdrop-filter:blur(8px);
}
.sticky-cta .container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.sticky-cta p{margin:0;font-size:13.5px;color:var(--ink-2)}
.sticky-cta p strong{color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:#0d1b33;color:#b9c8e0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand p{font-size:14px;color:#9db0cb;margin:16px 0 0;max-width:36ch}
.footer-col h4{color:#fff;font-size:14px;margin:0 0 14px;letter-spacing:.4px}
.footer-col a{display:block;font-size:13.5px;color:#9db0cb;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0 22px}
.footer-bottom .container{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#8899b5}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .cat-hero-inner{grid-template-columns:1fr;gap:32px;padding:48px 0 56px}
 .cat-hero h1{font-size:32px}
 .grid-3,.post-grid{grid-template-columns:repeat(2,1fr)}
 .flow{grid-template-columns:1fr;gap:30px}
 .stats{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .chan-note{display:none}
}
@media (max-width:820px){
 .nav-toggle{display:inline-flex}
 .header-chan{display:none}
 .header-chan.is-open{display:block}
 .chan-nav{overflow-x:auto;flex-wrap:nowrap;padding:4px 0}
 .chan-link{white-space:nowrap}
 .section{padding:54px 0}
 .section-head h2{font-size:24px}
 .assure{padding:28px 24px}
}
@media (max-width:640px){
 .container{width:calc(100% - 32px)}
 .grid-3,.grid-2,.post-grid,.compare,.stats{grid-template-columns:1fr}
 .cat-hero h1{font-size:26px}
 .cat-hero-lead{font-size:14.5px}
 .hero-facts{grid-template-columns:1fr}
 .compare-col header{font-size:14.5px}
 .footer-grid{grid-template-columns:1fr;gap:24px}
 .sticky-cta .container{flex-direction:column;align-items:stretch;gap:10px;padding:12px 0 14px}
 .sticky-cta .btn{width:100%}
 .sticky-cta p{text-align:center;font-size:13px}
 body{padding-bottom:120px}
}

/* roulang page: category2 */
:root{
 --bg:#f5f8fd;
 --bg-alt:#eef4fe;
 --card:#ffffff;
 --ink:#0e1a2f;
 --ink-2:#41536e;
 --ink-3:#7b8ca6;
 --brand:#1f6feb;
 --brand-dark:#1450b8;
 --brand-soft:#e9f1ff;
 --accent:#0fa89a;
 --line:#e2eaf6;
 --line-strong:#cfdcf0;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(18,46,96,.06);
 --shadow:0 10px 28px rgba(18,46,96,.09);
 --shadow-lg:0 18px 44px rgba(18,46,96,.14);
 --container:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:15px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:min(var(--container),100% - 44px);margin-inline:auto}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 22px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
 border:1px solid transparent;white-space:nowrap;min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(31,111,235,.28)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(31,111,235,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(31,111,235,.3)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
.btn-light{background:#fff;color:var(--brand-dark);box-shadow:0 8px 20px rgba(6,26,60,.22)}
.btn-light:hover{background:#f2f7ff;transform:translateY(-2px)}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(18,46,96,.10)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:38px;height:38px;border-radius:11px;flex-shrink:0;
 background:linear-gradient(140deg,#2f83ff,#1450b8);
 color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;
 box-shadow:0 6px 14px rgba(31,111,235,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand-text small{font-size:11.5px;color:var(--ink-3);letter-spacing:.4px}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-strong);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.header-chan{border-top:1px solid var(--line);background:linear-gradient(180deg,#fbfdff,#f5f9ff)}
.chan-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:9px 0}
.chan-nav{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
.chan-link{
 display:inline-flex;align-items:center;min-height:40px;padding:8px 15px;border-radius:9px;
 font-size:14px;font-weight:700;color:var(--ink-2);
 transition:background .2s ease,color .2s ease,transform .2s ease;
}
.chan-link:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.chan-link.active{background:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(31,111,235,.26)}
.chan-note{font-size:12.5px;color:var(--ink-3);white-space:nowrap}
/* ---------- category hero ---------- */
.cat-hero{position:relative;overflow:hidden;color:#fff;isolation:isolate}
.cat-hero-bg{
 position:absolute;inset:0;z-index:-2;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
}
.cat-hero::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(112deg,rgba(8,24,54,.95) 0%,rgba(14,45,98,.88) 55%,rgba(21,66,140,.74) 100%);
}
.cat-hero-inner{display:grid;grid-template-columns:1.22fr .78fr;gap:46px;align-items:center;padding:56px 0 62px}
.cat-crumb{font-size:12.5px;color:#9fb9e2;letter-spacing:.5px;margin-bottom:14px}
.cat-crumb span{margin:0 6px;color:#6d8cbd}
.cat-hero h1{font-size:36px;color:#fff;letter-spacing:-.6px;margin-bottom:16px}
.cat-hero-lead{font-size:15px;line-height:1.88;color:#cfdcf3;max-width:57ch}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 26px}
.hero-tag{
 font-size:12.5px;font-weight:700;color:#dbe9ff;
 padding:6px 13px;border-radius:999px;
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.route-snap{
 background:rgba(255,255,255,.97);color:var(--ink);
 border-radius:var(--radius-lg);padding:20px 22px 18px;
 box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.6);
}
.snap-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.6px;margin-bottom:12px}
.snap-head i{width:9px;height:9px;border-radius:50%;background:var(--accent);display:inline-block;box-shadow:0 0 0 4px rgba(15,168,154,.16)}
.snap-row{display:flex;justify-content:space-between;align-items:baseline;gap:14px;font-size:13.5px;padding:8px 0;border-top:1px dashed var(--line)}
.snap-row:first-of-type{border-top:0}
.snap-row span{color:var(--ink-3);flex-shrink:0}
.snap-row strong{font-weight:700;color:var(--ink);text-align:right}
.snap-foot{
 margin-top:14px;padding-top:12px;border-top:1px solid var(--line);
 font-size:12.5px;color:var(--ink-3);
}
/* ---------- sections ---------- */
.section{padding:72px 0}
.section--plain{background:#fff}
.section--alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:36px}
.section-kicker{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
 color:var(--brand);letter-spacing:1.2px;margin-bottom:10px;
}
.section-kicker::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--brand)}
.section-head h2{font-size:26px}
.section-desc{max-width:47ch;font-size:14.5px;color:var(--ink-2)}
/* ---------- grids & cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.info-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.info-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.info-body{padding:20px 22px 24px}
.info-body h3{font-size:17px;margin-bottom:9px}
.info-body p{font-size:14.5px;color:var(--ink-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px}
.tag{
 display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
 font-size:12px;font-weight:700;background:var(--brand-soft);color:var(--brand-dark);
}
.tag-soft{background:#eff4fd;color:var(--ink-2)}
/* ---------- timeline ---------- */
.route-timeline{display:flex;flex-direction:column;gap:16px;max-width:940px;margin:0 auto}
.step{
 display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.step-no{
 width:52px;height:52px;border-radius:14px;background:var(--brand-soft);color:var(--brand);
 display:grid;place-items:center;font-weight:800;font-size:15px;letter-spacing:.5px;
}
.step-body h3{font-size:17px;margin-bottom:7px}
.step-body p{font-size:14.5px;color:var(--ink-2)}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
/* ---------- node list ---------- */
.node-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.node-item{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:18px 20px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.node-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.node-item h3{font-size:15.5px;display:flex;align-items:center;gap:9px;margin-bottom:10px}
.node-item h3 span{
 flex-shrink:0;font-size:11.5px;font-weight:800;color:#fff;background:var(--brand);
 border-radius:7px;padding:2px 8px;
}
.node-row{display:flex;gap:10px;font-size:13.5px;color:var(--ink-2);padding-top:8px;margin-top:8px;border-top:1px dashed var(--line)}
.node-row b{flex-shrink:0;color:var(--ink);font-weight:700}
/* ---------- mistakes ---------- */
.miss-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.miss-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.miss-card h3{font-size:16px;margin-bottom:14px}
.miss-line{display:flex;gap:11px;font-size:14px;color:var(--ink-2);padding:10px 0;border-top:1px dashed var(--line)}
.miss-line:first-of-type{border-top:0;padding-top:0}
.miss-badge{
 flex-shrink:0;font-size:11.5px;font-weight:800;border-radius:7px;
 padding:2px 8px;height:22px;line-height:18px;letter-spacing:.5px;
}
.badge-good{background:#e7f7f4;color:#0b8a7f}
.badge-bad{background:#fdf0ee;color:#b8534a}
/* ---------- team ---------- */
.team-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.team-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.team-card h3{font-size:17px;margin-bottom:6px}
.team-card .team-note{font-size:13px;color:var(--ink-3);margin-bottom:14px}
.team-card li{
 position:relative;padding-left:17px;font-size:14px;color:var(--ink-2);margin-bottom:9px;
}
.team-card li::before{
 content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;
 background:var(--brand);box-shadow:0 0 0 3px rgba(31,111,235,.14);
}
/* ---------- quotes ---------- */
.quote-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-sm);position:relative;
}
.quote-card::before{
 content:"“";position:absolute;top:6px;right:20px;font-size:52px;line-height:1;
 color:var(--brand-soft);font-family:Georgia,serif;
}
.quote-text{font-size:14.5px;color:var(--ink-2);position:relative;z-index:1}
.quote-author{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.avatar{
 width:34px;height:34px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:14px;
}
.quote-author strong{font-size:13.5px;display:block}
.quote-author small{font-size:12px;color:var(--ink-3)}
/* ---------- news list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.news-thumb{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.news-body{padding:18px 20px 22px}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.news-date{font-size:12px;color:var(--ink-3)}
.news-body h3{font-size:16px;line-height:1.45;margin-bottom:8px}
.news-body h3 a{transition:color .2s ease}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{font-size:13.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-empty{
 max-width:520px;margin:0 auto;text-align:center;padding:34px 26px;
 background:var(--card);border:1px dashed var(--line-strong);border-radius:var(--radius);
 color:var(--ink-3);font-size:14px;
}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px;margin:0 auto}
.faq-item{
 background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
 box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-item summary{
 list-style:none;cursor:pointer;position:relative;
 padding:18px 54px 18px 22px;font-size:15.5px;font-weight:700;
 transition:color .2s ease;
}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
 font-size:21px;font-weight:400;color:var(--brand);transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);border-top:1px dashed var(--line);padding-top:14px;margin:0 22px 20px;padding-inline:0}
/* ---------- cta ---------- */
.cta-band{
 background:linear-gradient(118deg,#12428f 0%,#1f6feb 58%,#2f83ff 100%);
 color:#fff;border-radius:var(--radius-lg);padding:40px 44px;
 display:flex;align-items:center;justify-content:space-between;gap:34px;
 box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:24px;color:#fff;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:#d6e5ff;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}
/* ---------- footer ---------- */
.site-footer{background:#0b1a33;color:#c6d5ec}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;padding:56px 0 40px}
.footer-brand .brand-text strong{color:#fff}
.site-footer .brand small{color:#8299b8}
.footer-brand p{font-size:13.5px;color:#9fb3d1;margin-top:15px;max-width:34ch;line-height:1.85}
.footer-col h4{font-size:13px;color:#fff;letter-spacing:.6px;margin-bottom:14px}
.footer-col a{display:block;font-size:13.5px;color:#a8bcd8;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0}
.footer-bottom .container{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#8299b8}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .cat-hero-inner{grid-template-columns:1fr;gap:32px;padding:44px 0 50px}
 .cat-hero h1{font-size:31px}
 .route-snap{max-width:520px}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .news-grid{grid-template-columns:repeat(2,1fr)}
 .miss-grid{grid-template-columns:repeat(2,1fr)}
 .section{padding:56px 0}
 .section-head{flex-direction:column;align-items:flex-start;gap:14px}
 .section-head h2{font-size:23px}
 .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:44px 0 32px}
}
@media (max-width:860px){
 .nav-toggle{display:flex}
 .header-chan{display:none}
 .header-chan.open{display:block}
 .chan-inner{flex-direction:column;align-items:stretch;gap:8px;padding:10px 0 16px}
 .chan-nav{flex-direction:column;align-items:stretch;gap:6px}
 .chan-link{justify-content:flex-start;padding:11px 14px}
 .chan-note{display:none}
}
@media (max-width:768px){
 .container{width:min(var(--container),100% - 32px)}
 .grid-3,.news-grid,.miss-grid,.node-list,.grid-2{grid-template-columns:1fr}
 .cat-hero h1{font-size:27px}
 .cat-hero-lead{font-size:14.5px}
 .section{padding:46px 0}
 .section-head h2{font-size:21px}
 .step{grid-template-columns:1fr;gap:14px;padding:20px}
 .step-no{width:46px;height:46px;border-radius:12px}
 .cta-band{padding:28px 22px;border-radius:var(--radius)}
 .cta-band h2{font-size:20px}
 .cta-actions{width:100%}
 .cta-actions .btn{flex:1 1 auto}
 .footer-bottom .container{flex-direction:column;gap:6px}
}
@media (max-width:520px){
 .brand-text strong{font-size:14.5px}
 .brand-text small{font-size:10.5px}
 .hero-actions .btn{width:100%}
 .quote-author{flex-wrap:wrap}
 .info-body,.news-body,.team-card,.miss-card{padding-inline:18px}
}