/* roulang page: index */
:root{
  --brand-900:#072b26;
  --brand-800:#0a3a33;
  --brand-700:#0d4f45;
  --brand-600:#12695c;
  --brand-500:#1a7f6f;
  --brand-300:#4fb3a1;
  --brand-100:#e3f3ef;
  --gold:#e0a13a;
  --gold-deep:#c9861d;
  --gold-100:#fbf0db;
  --ink:#102320;
  --ink-2:#38524d;
  --muted:#6d827d;
  --line:#dfeae7;
  --bg:#f4f8f7;
  --surface:#ffffff;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-xs:0 1px 2px rgba(8,43,38,.06);
  --shadow-sm:0 4px 14px rgba(8,43,38,.07);
  --shadow-md:0 12px 32px rgba(8,43,38,.10);
  --shadow-lg:0 24px 60px rgba(8,43,38,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  font-family:inherit;
  color:var(--ink);
  margin:0 0 .6em;
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.2px;
}
p{margin:0 0 1em;color:var(--ink-2);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
img{max-width:100%;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(224,161,58,.6);outline-offset:2px;border-radius:6px;}
.container,.grid-container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x>.cell{padding-left:.75rem;padding-right:.75rem;}
.grid-x.grid-margin-x{margin-left:-.75rem;margin-right:-.75rem;}
@media (max-width:640px){
  .grid-x.grid-margin-x{margin-left:-.5rem;margin-right:-.5rem;}
  .grid-x>.cell{padding-left:.5rem;padding-right:.5rem;}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(8,43,38,.10);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:26px;
  height:var(--header-h);
  position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;
  background:linear-gradient(140deg,var(--brand-600),var(--brand-800));
  box-shadow:0 6px 16px rgba(13,79,69,.30);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--brand-900);white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:36px;padding:0 13px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  border-radius:9px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-600),var(--brand-300));
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-mega{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 12px;border-radius:9px;
  border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.mega-trigger:hover{color:var(--brand-700);border-color:var(--brand-300);box-shadow:var(--shadow-sm);}
.mega-trigger svg{transition:transform .2s var(--ease);}
.nav-mega:hover .mega-trigger svg,.nav-mega:focus-within .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:540px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:18px;
  display:grid;grid-template-columns:1fr 1fr;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-item{
  display:block;padding:12px;border-radius:12px;border:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-item:hover{background:var(--brand-100);border-color:#cfe9e3;transform:translateY(-2px);}
.mega-item strong{display:block;font-size:14px;color:var(--brand-900);margin-bottom:3px;}
.mega-item span{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);}
.mega-foot{
  grid-column:1 / -1;margin-top:4px;padding-top:12px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--muted);
}
.nav-toggle{
  display:none;width:44px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transition:transform .25s var(--ease),opacity .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);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:10px;
  font-size:15px;font-weight:700;letter-spacing:.2px;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
  color:#fff;box-shadow:0 10px 24px rgba(18,105,92,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,105,92,.36);color:#fff;}
.btn-gold{
  background:linear-gradient(135deg,#efb755,var(--gold-deep));
  color:#3a2503;box-shadow:0 10px 24px rgba(201,134,29,.28);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(201,134,29,.36);color:#3a2503;}
.btn-ghost{
  background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.46);
}
.btn-ghost:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);color:#fff;}
.btn-outline{
  background:#fff;color:var(--brand-700);border-color:var(--line);
}
.btn-outline:hover{border-color:var(--brand-300);color:var(--brand-800);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  color:#fff;
  padding:70px 0 78px;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(6,36,32,.97) 0%,rgba(9,56,49,.90) 48%,rgba(14,86,74,.62) 100%);
}
.hero-inner{position:relative;z-index:2;}
.hero-grid{row-gap:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;color:#eaf6f3;letter-spacing:.3px;
  margin-bottom:18px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--gold);display:inline-block;}
.hero h1{
  color:#fff;
  font-size:clamp(28px,3.4vw,42px);
  line-height:1.26;
  font-weight:800;
  letter-spacing:-.6px;
  margin-bottom:18px;
}
.hero-lead{
  color:rgba(235,248,244,.88);
  font-size:16px;line-height:1.85;
  max-width:640px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags li{
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  font-size:13px;font-weight:600;color:#dcefeb;
}
.team-card{
  background:#fff;color:var(--ink);
  border-radius:var(--radius-xl);
  border:1px solid rgba(255,255,255,.7);
  box-shadow:var(--shadow-lg);
  padding:24px 22px 22px;
}
.team-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.team-card-head h3{margin:0;font-size:16px;color:var(--brand-900);}
.team-badge{
  font-size:12px;font-weight:700;color:var(--brand-700);
  background:var(--brand-100);border-radius:999px;padding:4px 10px;
}
.team-count{display:flex;align-items:baseline;gap:8px;margin-bottom:12px;}
.team-count strong{font-size:34px;line-height:1;color:var(--brand-700);font-weight:800;}
.team-count span{font-size:13px;color:var(--muted);}
.progress{height:10px;border-radius:99px;background:#e7efed;overflow:hidden;margin-bottom:12px;}
.progress i{display:block;height:100%;width:75%;border-radius:99px;background:linear-gradient(90deg,var(--brand-600),var(--brand-300));}
.team-hint{font-size:13.5px;color:var(--ink-2);margin-bottom:16px;}
.team-hint b{color:var(--gold-deep);}
.team-members{display:flex;gap:10px;margin-bottom:18px;}
.member{
  flex:1;text-align:center;
  border:1px solid var(--line);border-radius:12px;
  padding:10px 4px;background:#fbfdfc;
}
.member .avatar{
  width:34px;height:34px;border-radius:50%;margin:0 auto 6px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#fff;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
}
.member.empty .avatar{background:#eef4f2;color:#9db3ae;border:1px dashed #c9dcd7;}
.member.empty{border-style:dashed;background:#f7fbfa;}
.member em{display:block;font-style:normal;font-size:11.5px;color:var(--muted);}
.team-foot{font-size:12.5px;color:var(--muted);text-align:center;margin:12px 0 0;}

/* ---------- sections ---------- */
.section{padding:70px 0;position:relative;}
.section.alt{background:var(--surface);}
.section.dark{background:linear-gradient(150deg,var(--brand-900),var(--brand-700));color:#fff;}
.section.dark h2,.section.dark h3{color:#fff;}
.section.dark p{color:rgba(232,246,242,.86);}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:1.2px;
  color:var(--brand-600);text-transform:uppercase;
  margin-bottom:10px;
}
.sec-tag::before{content:"";width:22px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--gold),var(--brand-300));}
.sec-head.center .sec-tag::before{display:none;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:-.4px;margin-bottom:12px;}
.sec-head p{font-size:15px;line-height:1.8;margin:0;color:var(--ink-2);}
.section.dark .sec-tag{color:var(--gold);}

/* ---------- stats strip ---------- */
.stats-strip{
  position:relative;z-index:3;
  margin-top:-42px;
}
.stats-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-md);
  padding:26px 22px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.stat-item{text-align:center;padding:6px 4px;border-right:1px dashed var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item strong{display:block;font-size:clamp(22px,2.4vw,28px);font-weight:800;color:var(--brand-700);line-height:1.1;margin-bottom:6px;}
.stat-item span{font-size:13px;color:var(--muted);}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;height:100%;
  box-shadow:var(--shadow-xs);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8e3dd;}
.card h3{font-size:17px;margin-bottom:8px;color:var(--brand-900);}
.card p{font-size:14px;line-height:1.78;margin:0;color:var(--ink-2);}
.icon-box{
  width:44px;height:44px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);
  margin-bottom:14px;
}
.icon-box.gold{background:var(--gold-100);color:var(--gold-deep);}
.card-tag{
  display:inline-block;margin-top:14px;
  font-size:12px;font-weight:700;color:var(--brand-700);
  background:var(--brand-100);border-radius:999px;padding:4px 11px;
}
.feature-wide{
  background:linear-gradient(140deg,#0c4a41,#12695c);
  color:#fff;border:0;
  display:flex;flex-direction:column;justify-content:space-between;
}
.feature-wide h3{color:#fff;}
.feature-wide p{color:rgba(232,246,242,.86);}
.feature-wide .icon-box{background:rgba(255,255,255,.14);color:#fff;}
.feature-wide .card-tag{background:rgba(255,255,255,.16);color:#eaf7f4;}

/* ---------- value split ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:42px;align-items:center;}
.split-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line);}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.media-badge{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.96);border-radius:12px;
  padding:10px 14px;box-shadow:var(--shadow-sm);
  font-size:13px;font-weight:700;color:var(--brand-800);
}
.value-list{margin-top:22px;display:grid;gap:14px;}
.value-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:12px;background:#fff;border:1px solid var(--line);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.value-list li:hover{border-color:#c8e3dd;transform:translateX(3px);box-shadow:var(--shadow-sm);}
.check{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);margin-top:2px;
}
.value-list strong{display:block;font-size:14.5px;color:var(--brand-900);margin-bottom:2px;}
.value-list span{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.scene-card{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:#fff;padding:24px 20px;min-height:186px;
  display:flex;flex-direction:column;justify-content:space-between;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.scene-card::before{
  content:"";position:absolute;top:-40px;right:-40px;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,rgba(79,179,161,.18),transparent 70%);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8e3dd;}
.scene-card h3{font-size:16px;margin-bottom:8px;}
.scene-card p{font-size:13.5px;color:var(--ink-2);margin:0;line-height:1.75;}
.scene-no{font-size:12px;font-weight:800;color:var(--brand-300);letter-spacing:2px;margin-bottom:12px;display:block;}

/* ---------- demo / showcase ---------- */
.showcase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.shot{
  border-radius:var(--radius-lg);overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-xs);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.shot:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.shot img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.shot-body{padding:16px 18px 18px;}
.shot-body h3{font-size:15.5px;margin-bottom:6px;}
.shot-body p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.72;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 22px 22px;box-shadow:var(--shadow-xs);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8e3dd;}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  font-weight:800;font-size:15px;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
  color:#fff;margin-bottom:14px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.78;}

/* ---------- platforms ---------- */
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.platform{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 16px;box-shadow:var(--shadow-xs);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.platform:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8e3dd;}
.platform .icon-box{margin-bottom:0;}
.platform strong{font-size:15px;color:var(--brand-900);}
.platform span{font-size:12.5px;color:var(--muted);line-height:1.6;}

/* ---------- gameplay list ---------- */
.rule-split{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:start;}
.rule-list{display:grid;gap:12px;}
.rule-item{
  background:#fff;border:1px solid var(--line);border-radius:13px;
  padding:16px 18px;display:flex;gap:14px;align-items:flex-start;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.rule-item:hover{border-color:#c8e3dd;box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.rule-key{
  flex:0 0 auto;min-width:66px;text-align:center;
  font-size:12.5px;font-weight:800;color:var(--brand-700);
  background:var(--brand-100);border-radius:8px;padding:5px 8px;
}
.rule-item p{margin:0;font-size:13.8px;line-height:1.75;color:var(--ink-2);}
.rule-item b{color:var(--brand-800);}
.side-panel{
  background:linear-gradient(150deg,var(--brand-900),var(--brand-700));
  border-radius:var(--radius-xl);padding:28px 24px;color:#fff;
  box-shadow:var(--shadow-md);
}
.side-panel h3{color:#fff;font-size:17px;margin-bottom:16px;}
.side-panel .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.tag-pill{
  font-size:12.5px;font-weight:700;color:#eaf7f4;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:5px 12px;
}
.mini-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.mini-stats div{background:rgba(255,255,255,.10);border-radius:12px;padding:14px;}
.mini-stats strong{display:block;font-size:20px;font-weight:800;color:#fff;margin-bottom:3px;}
.mini-stats span{font-size:12px;color:rgba(230,246,242,.8);}

/* ---------- channel matrix ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:26px 24px;display:flex;flex-direction:column;
  box-shadow:var(--shadow-xs);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.channel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#c8e3dd;}
.channel-card h3{font-size:18px;margin-bottom:10px;color:var(--brand-900);}
.channel-card p{font-size:14px;color:var(--ink-2);margin-bottom:18px;line-height:1.78;}
.channel-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:800;color:var(--brand-600);
}
.channel-card:hover .channel-more{color:var(--gold-deep);}
.channel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}

/* ---------- reviews ---------- */
.review-wall{columns:3;column-gap:20px;}
.review{
  break-inside:avoid;margin-bottom:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-xs);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.review:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c8e3dd;}
.review p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0 0 14px;}
.review-user{display:flex;align-items:center;gap:10px;}
.review-avatar{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:800;color:#fff;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
}
.review-user strong{display:block;font-size:13.5px;color:var(--brand-900);}
.review-user span{font-size:12px;color:var(--muted);}
.review.gold{background:linear-gradient(150deg,#fff8ec,#fffdf9);border-color:#f2ddb8;}

/* ---------- proof bar ---------- */
.proof-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:28px 24px;box-shadow:var(--shadow-sm);
}
.proof-item{text-align:center;border-right:1px dashed var(--line);padding:4px 6px;}
.proof-item:last-child{border-right:0;}
.proof-item strong{display:block;font-size:24px;font-weight:800;color:var(--brand-700);margin-bottom:4px;}
.proof-item span{font-size:12.8px;color:var(--muted);}

/* ---------- requirements ---------- */
.req-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.req-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-xs);
}
.req-card h3{font-size:16.5px;margin-bottom:14px;}
.req-list{display:grid;gap:10px;}
.req-list li{
  display:flex;justify-content:space-between;gap:14px;
  font-size:14px;padding-bottom:10px;border-bottom:1px dashed var(--line);
}
.req-list li:last-child{border-bottom:0;padding-bottom:0;}
.req-list span{color:var(--muted);}
.req-list b{color:var(--brand-800);font-weight:700;text-align:right;}

/* ---------- guarantee ---------- */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.guarantee{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-lg);padding:22px 20px;
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.guarantee:hover{transform:translateY(-4px);background:rgba(255,255,255,.13);}
.guarantee h3{font-size:15.5px;margin-bottom:8px;color:#fff;}
.guarantee p{font-size:13.5px;line-height:1.75;color:rgba(230,246,242,.82);margin:0;}
.guarantee .icon-box{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- news ---------- */
.news-wrap{display:grid;grid-template-columns:1.55fr 1fr;gap:32px;align-items:start;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px 22px;box-shadow:var(--shadow-xs);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c8e3dd;}
.news-meta{display:block;font-size:12.5px;color:var(--muted);margin-bottom:8px;}
.news-item h3{font-size:16px;margin-bottom:8px;color:var(--brand-900);}
.news-item p{font-size:13.8px;color:var(--ink-2);margin:0;line-height:1.76;}
.news-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:24px;box-shadow:var(--shadow-sm);
}
.news-side h3{font-size:16px;margin-bottom:16px;}
.side-link{
  display:block;padding:12px 0;border-bottom:1px dashed var(--line);
  transition:color .2s var(--ease);
}
.side-link:last-of-type{border-bottom:0;}
.side-link strong{display:block;font-size:14px;color:var(--brand-900);margin-bottom:3px;line-height:1.6;}
.side-link span{font-size:12px;color:var(--muted);}
.side-link:hover strong{color:var(--brand-600);}
.news-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:34px 22px;text-align:center;color:var(--muted);font-size:14px;
}

/* ---------- final cta ---------- */
.final-cta{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  padding:52px 40px;
  background:linear-gradient(130deg,var(--brand-900),var(--brand-600));
  color:#fff;box-shadow:var(--shadow-lg);
  text-align:center;
}
.final-cta::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-4.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.final-cta > *{position:relative;z-index:2;}
.final-cta h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.final-cta p{color:rgba(232,246,242,.88);max-width:660px;margin:0 auto 26px;font-size:15px;line-height:1.82;}
.final-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- footer ---------- */
.site-footer{
  background:#08211d;color:#c8dcd7;padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:38px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-about{font-size:13.5px;line-height:1.8;color:rgba(200,220,215,.72);max-width:340px;margin:0;}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.4px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:13.5px;color:rgba(206,226,221,.78);transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12px;color:rgba(206,226,221,.8);
  border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:4px 11px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:22px;font-size:12.5px;color:rgba(200,220,215,.62);
}
.footer-bottom a{color:rgba(200,220,215,.72);}
.footer-bottom a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-menu{margin-left:0;gap:0;}
  .nav-link{padding:0 10px;font-size:14px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .rule-split{grid-template-columns:1fr;gap:26px;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .platform-grid{grid-template-columns:repeat(2,1fr);}
  .guarantee-grid{grid-template-columns:repeat(2,1fr);}
  .channel-grid{grid-template-columns:1fr;gap:16px;}
  .review-wall{columns:2;}
  .news-wrap{grid-template-columns:1fr;gap:24px;}
  .stats-box{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat-item:nth-child(2){border-right:0;}
  .proof-bar{grid-template-columns:repeat(2,1fr);}
  .proof-item:nth-child(2){border-right:0;}
  .showcase-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:960px){
  .nav-toggle{display:flex;}
  .nav-right{display:none;}
  .nav-menu{
    position:absolute;left:0;right:0;top:var(--header-h);
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);padding:14px 20px 20px;
    flex-direction:column;align-items:stretch;gap:4px;
    display:none;
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{height:44px;padding:0 14px;font-size:15px;justify-content:flex-start;}
  .nav-link.is-active::after{display:none;}
  .nav-wrap{gap:14px;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .hero{padding:52px 0 58px;}
  .hero-lead{font-size:15px;}
  .stats-strip{margin-top:-28px;}
  .steps{grid-template-columns:1fr;}
  .req-grid{grid-template-columns:1fr;}
  .showcase-grid{grid-template-columns:1fr;}
  .review-wall{columns:1;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .final-cta{padding:38px 22px;}
  .team-members{flex-wrap:wrap;}
  .member{flex:1 1 44%;}
}
@media (max-width:520px){
  .stats-box{grid-template-columns:1fr;padding:20px 16px;}
  .stat-item{border-right:0;border-bottom:1px dashed var(--line);padding-bottom:14px;}
  .stat-item:last-child{border-bottom:0;padding-bottom:0;}
  .scene-grid{grid-template-columns:1fr;}
  .platform-grid{grid-template-columns:1fr 1fr;}
  .guarantee-grid{grid-template-columns:1fr;}
  .proof-bar{grid-template-columns:1fr;padding:22px 18px;}
  .proof-item{border-right:0;border-bottom:1px dashed var(--line);padding-bottom:12px;}
  .proof-item:last-child{border-bottom:0;padding-bottom:0;}
  .hero-actions .btn{width:100%;}
  .final-actions .btn{width:100%;}
  .brand-text{font-size:15px;}
  .sec-head h2{font-size:21px;}
}

/* roulang page: category1 */
:root{
 --brand-900:#072b26;
 --brand-800:#0a3a33;
 --brand-700:#0d4f45;
 --brand-600:#12695c;
 --brand-500:#1a7f6f;
 --brand-300:#4fb3a1;
 --brand-100:#e3f3ef;
 --gold:#e0a13a;
 --gold-deep:#c9861d;
 --gold-100:#fbf0db;
 --ink:#102320;
 --ink-2:#38524d;
 --muted:#6d827d;
 --line:#dfeae7;
 --bg:#f4f8f7;
 --surface:#ffffff;
 --radius-xl:24px;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-xs:0 1px 2px rgba(8,43,38,.06);
 --shadow-sm:0 4px 14px rgba(8,43,38,.07);
 --shadow-md:0 12px 32px rgba(8,43,38,.10);
 --shadow-lg:0 24px 60px rgba(8,43,38,.16);
 --ease:cubic-bezier(.22,.61,.36,1);
 --header-h:64px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(79,179,161,.55);outline-offset:2px;border-radius:6px;}
.container{
 width:100%;
 max-width:1180px;
 margin:0 auto;
 padding-left:20px;
 padding-right:20px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;
 top:0;
 z-index:80;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(180%) blur(14px);
 -webkit-backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(8,43,38,.10);}
.nav-wrap{
 display:flex;
 align-items:center;
 gap:26px;
 height:var(--header-h);
 position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:inline-flex;align-items:center;justify-content:center;
 color:#fff;
 background:linear-gradient(140deg,var(--brand-600),var(--brand-800));
 box-shadow:0 6px 16px rgba(13,79,69,.30);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--brand-900);white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
 position:relative;
 display:inline-flex;align-items:center;
 height:36px;padding:0 13px;
 font-size:14.5px;font-weight:600;color:var(--ink-2);
 border-radius:9px;
 transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active::after{
 content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--brand-600),var(--brand-300));
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-mega{position:relative;}
.mega-trigger{
 display:inline-flex;align-items:center;gap:6px;
 height:36px;padding:0 12px;border-radius:9px;
 border:1px solid var(--line);background:#fff;
 font-size:14px;font-weight:600;color:var(--ink-2);
 transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.mega-trigger:hover{color:var(--brand-700);border-color:var(--brand-300);box-shadow:var(--shadow-sm);}
.mega-trigger svg{transition:transform .2s var(--ease);}
.nav-mega:hover .mega-trigger svg,.nav-mega:focus-within .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
 position:absolute;top:calc(100% + 14px);right:0;width:540px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-lg);padding:18px;
 display:grid;grid-template-columns:1fr 1fr;gap:10px;
 opacity:0;visibility:hidden;transform:translateY(8px);
 transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-item{
 display:block;padding:12px;border-radius:12px;border:1px solid transparent;
 transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-item:hover{background:var(--brand-100);border-color:#cfe9e3;transform:translateY(-2px);}
.mega-item strong{display:block;font-size:14px;color:var(--brand-900);margin-bottom:3px;}
.mega-item span{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);}
.mega-foot{
 grid-column:1 / -1;margin-top:4px;padding-top:12px;border-top:1px dashed var(--line);
 font-size:12.5px;color:var(--muted);
}
.nav-toggle{
 display:none;width:44px;height:40px;border-radius:10px;
 border:1px solid var(--line);background:#fff;
 align-items:center;justify-content:center;flex-direction:column;gap:4px;
 margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transition:transform .25s var(--ease),opacity .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);}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:12px 24px;border-radius:10px;
 font-size:15px;font-weight:700;letter-spacing:.2px;
 border:1px solid transparent;
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
 background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
 color:#fff;box-shadow:0 10px 24px rgba(18,105,92,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,105,92,.36);color:#fff;}
.btn-gold{
 background:linear-gradient(135deg,var(--gold),var(--gold-deep));
 color:#2b1f05;box-shadow:0 10px 24px rgba(201,134,29,.30);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(201,134,29,.40);color:#2b1f05;}
.btn-ghost{
 background:rgba(255,255,255,.08);
 color:#eaf6f3;border-color:rgba(255,255,255,.30);
}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:#cbdfda;}
.btn-outline:hover{border-color:var(--brand-500);background:var(--brand-100);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px;border-radius:9px;}
/* ---------- hero ---------- */
.hero-section{
 position:relative;
 padding:52px 0 64px;
 background:
  linear-gradient(115deg,rgba(7,43,38,.96) 0%,rgba(10,58,51,.93) 45%,rgba(13,79,69,.88) 100%),
  url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
 color:#eaf6f3;
 overflow:hidden;
}
.hero-section::after{
 content:"";position:absolute;inset:auto -120px -160px auto;
 width:420px;height:420px;border-radius:50%;
 background:radial-gradient(circle,rgba(224,161,58,.28),transparent 68%);
 pointer-events:none;
}
.hero-panel{
 position:relative;z-index:2;
 display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:1.4px;
 color:var(--gold);text-transform:uppercase;
 padding:6px 12px;border-radius:999px;
 background:rgba(224,161,58,.14);border:1px solid rgba(224,161,58,.35);
}
.hero-copy h1{
 margin:18px 0 14px;
 font-size:40px;line-height:1.24;font-weight:800;letter-spacing:-.5px;
 color:#fff;
}
.hero-copy h1 em{font-style:normal;color:var(--gold);}
.hero-sub{font-size:16px;line-height:1.85;color:#c6ded8;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags .tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 13px;border-radius:999px;
 font-size:13px;font-weight:600;color:#d7ece7;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
}
.hero-board{
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.16);
 border-radius:var(--radius-xl);
 padding:22px;
 backdrop-filter:blur(8px);
 box-shadow:0 20px 50px rgba(0,0,0,.24);
}
.board-head{
 display:flex;align-items:center;justify-content:space-between;
 padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.20);
 font-size:14px;font-weight:700;color:#fff;
}
.board-badge{
 font-size:11.5px;font-weight:700;letter-spacing:.6px;
 padding:3px 9px;border-radius:999px;
 color:#2b1f05;background:var(--gold);
}
.board-list{display:grid;gap:14px;margin-top:16px;}
.board-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;color:#d7ece7;font-weight:600;}
.board-num{color:var(--gold);font-variant-numeric:tabular-nums;}
.bar{height:7px;border-radius:999px;background:rgba(255,255,255,.14);margin-top:7px;overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-300),var(--gold));}
.board-foot{margin-top:16px;font-size:12px;color:#a8c8c1;line-height:1.6;}
/* ---------- sections ---------- */
.section{padding:70px 0;}
.section-alt{background:#fff;}
.section-tint{background:linear-gradient(180deg,#eef6f4,#f4f8f7);}
.section-dark{
 background:linear-gradient(120deg,var(--brand-900),var(--brand-700));
 color:#e6f4f0;
}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--brand-600);
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-500),var(--gold));}
.section-dark .eyebrow{color:var(--gold);}
.section-title{
 font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.3px;
 margin-top:12px;color:var(--brand-900);
}
.section-dark .section-title{color:#fff;}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.85;}
.section-dark .section-desc{color:#bcd6d0;}
/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card-grid.four{grid-template-columns:repeat(4,1fr);}
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);
 padding:24px;
 display:flex;flex-direction:column;
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c3e2da;}
.card-icon{
 width:44px;height:44px;border-radius:13px;
 display:inline-flex;align-items:center;justify-content:center;
 color:var(--brand-700);
 background:linear-gradient(140deg,var(--brand-100),#d3ebe5);
 border:1px solid #cdeae3;
 margin-bottom:16px;
}
.card h3{font-size:18px;font-weight:800;color:var(--brand-900);line-height:1.45;}
.card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.card-meta{
 display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;
 padding-top:14px;border-top:1px dashed var(--line);
}
.tag{
 display:inline-flex;align-items:center;
 padding:4px 10px;border-radius:999px;
 font-size:12.5px;font-weight:600;
 color:var(--brand-700);background:var(--brand-100);
 border:1px solid #d2ebe5;
}
.tag.gold{color:var(--gold-deep);background:var(--gold-100);border-color:#f0dcb6;}
.tag.ghost{color:var(--ink-2);background:#f2f7f6;border-color:var(--line);}
/* spec rows in card */
.spec{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:13.5px;padding:7px 0;border-bottom:1px dashed #eaf3f1;}
.spec:last-of-type{border-bottom:0;}
.spec dt{color:var(--muted);}
.spec dd{margin:0;font-weight:700;color:var(--brand-800);font-variant-numeric:tabular-nums;}
.spec-list{margin-top:14px;}
/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step;}
.step{
 position:relative;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 24px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.step::before{
 counter-increment:step;content:"0" counter(step);
 position:absolute;top:-14px;left:22px;
 font-size:13px;font-weight:800;letter-spacing:1px;
 color:#fff;background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
 padding:4px 12px;border-radius:999px;
 box-shadow:0 8px 18px rgba(18,105,92,.28);
}
.step h3{font-size:17.5px;font-weight:800;color:var(--brand-900);margin-top:6px;}
.step p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8;}
/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.split-media{
 border-radius:var(--radius-xl);
 overflow:hidden;border:1px solid var(--line);
 box-shadow:var(--shadow-md);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.check-list{display:grid;gap:14px;margin-top:22px;}
.check-item{
 display:flex;gap:14px;align-items:flex-start;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:16px 18px;box-shadow:var(--shadow-xs);
 transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.check-item:hover{border-color:#c3e2da;transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.check-dot{
 flex:0 0 auto;width:26px;height:26px;border-radius:8px;
 display:inline-flex;align-items:center;justify-content:center;
 color:#fff;background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
 margin-top:2px;
}
.check-item strong{display:block;font-size:15px;color:var(--brand-900);}
.check-item span{display:block;font-size:14px;color:var(--ink-2);line-height:1.75;margin-top:4px;}
/* ---------- faq ---------- */
.faq-wrap{display:grid;gap:14px;max-width:900px;}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-xs);overflow:hidden;
 transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:#c3e2da;box-shadow:var(--shadow-sm);}
.faq-item summary{
 cursor:pointer;list-style:none;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:18px 20px;font-size:15.5px;font-weight:700;color:var(--brand-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";flex:0 0 auto;
 width:26px;height:26px;border-radius:8px;
 display:inline-flex;align-items:center;justify-content:center;
 font-size:17px;font-weight:700;color:var(--brand-700);
 background:var(--brand-100);border:1px solid #d2ebe5;
 transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-item[open] summary::after{content:"–";background:var(--gold-100);border-color:#f0dcb6;color:var(--gold-deep);}
.faq-body{padding:0 20px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.85;}
/* ---------- timeline ---------- */
.timeline{display:grid;gap:0;position:relative;margin-top:8px;}
.timeline::before{content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;background:linear-gradient(180deg,var(--brand-300),rgba(79,179,161,.15));}
.tl-item{position:relative;padding:0 0 26px 42px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:4px;top:6px;width:16px;height:16px;border-radius:50%;
 background:#fff;border:3px solid var(--brand-500);box-shadow:0 0 0 4px rgba(79,179,161,.12);
}
.tl-ver{font-size:13px;font-weight:800;letter-spacing:.6px;color:var(--gold-deep);}
.tl-item h3{font-size:16.5px;font-weight:800;color:var(--brand-900);margin-top:4px;}
.tl-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-top:6px;}
.section-dark .tl-item h3{color:#fff;}
.section-dark .tl-item p{color:#bcd6d0;}
.section-dark .tl-item::before{background:var(--brand-800);border-color:var(--gold);box-shadow:0 0 0 4px rgba(224,161,58,.16);}
.section-dark .timeline::before{background:linear-gradient(180deg,rgba(224,161,58,.7),rgba(224,161,58,.1));}
/* ---------- quotes ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.quote{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-sm);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c3e2da;}
.quote p{font-size:14.8px;line-height:1.85;color:var(--ink-2);}
.quote-foot{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:11px;
 display:inline-flex;align-items:center;justify-content:center;
 font-size:14px;font-weight:800;color:#fff;
 background:linear-gradient(140deg,var(--brand-500),var(--brand-800));
}
.quote-foot strong{display:block;font-size:14px;color:var(--brand-900);}
.quote-foot span{display:block;font-size:12.5px;color:var(--muted);}
/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:var(--radius-xl);
 padding:52px 44px;
 background:
  linear-gradient(115deg,rgba(7,43,38,.95),rgba(18,105,92,.92)),
  url("/assets/images/backpic/back-4.webp") center/cover no-repeat;
 border:1px solid rgba(255,255,255,.14);
 box-shadow:var(--shadow-lg);
 color:#eaf6f3;
 display:grid;grid-template-columns:1.4fr .6fr;gap:30px;align-items:center;
}
.cta-band h2{font-size:29px;line-height:1.32;font-weight:800;color:#fff;letter-spacing:-.3px;}
.cta-band p{margin-top:12px;font-size:15.5px;color:#c6ded8;line-height:1.85;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
/* ---------- footer ---------- */
.site-footer{
 background:#062520;
 color:#a9c6c0;
 padding:56px 0 0;
 border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr 1.2fr;gap:40px;padding-bottom:38px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:#8fb2ab;max-width:380px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.5px;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#a9c6c0;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--gold);transform:translateX(3px);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
 font-size:12.5px;padding:5px 11px;border-radius:999px;
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#bcd6d0;
}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.10);
 font-size:13px;color:#7fa39c;
}
/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
 .hero-panel{grid-template-columns:1fr;gap:30px;}
 .hero-copy h1{font-size:34px;}
 .card-grid,.card-grid.four{grid-template-columns:repeat(2,1fr);}
 .step-grid{grid-template-columns:repeat(2,1fr);}
 .quote-grid{grid-template-columns:repeat(2,1fr);}
 .split{grid-template-columns:1fr;gap:28px;}
 .cta-band{grid-template-columns:1fr;padding:42px 30px;}
 .cta-actions{justify-content:flex-start;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
 .nav-menu{gap:0;}
 .nav-link{padding:0 10px;font-size:14px;}
}
@media screen and (max-width:860px){
 .nav-toggle{display:inline-flex;}
 .nav-menu{
  position:absolute;top:calc(100% + 1px);left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-md);
  padding:12px 16px 18px;
  display:none;
 }
 .nav-menu.is-open{display:flex;}
 .nav-link{height:44px;padding:0 14px;font-size:15px;}
 .nav-link.is-active::after{display:none;}
 .nav-right{margin-left:0;}
 .nav-mega{display:none;}
 .brand-text{font-size:15px;}
}
@media screen and (max-width:768px){
 .hero-section{padding:40px 0 48px;}
 .hero-copy h1{font-size:28px;}
 .hero-sub{font-size:15px;}
 .section{padding:52px 0;}
 .section-title{font-size:24px;}
 .card-grid,.card-grid.four,.step-grid,.quote-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .cta-band h2{font-size:23px;}
}
@media screen and (max-width:520px){
 .hero-copy h1{font-size:25px;line-height:1.32;}
 .hero-actions .btn{width:100%;}
 .btn{padding:12px 18px;}
 .hero-board{padding:18px;}
 .card{padding:20px;}
 .step{padding:24px 18px 20px;}
 .faq-item summary{font-size:14.5px;padding:16px;}
 .footer-bottom{font-size:12px;}
}

/* roulang page: article */
:root{
 --brand-900:#072b26;
 --brand-800:#0a3a33;
 --brand-700:#0d4f45;
 --brand-600:#12695c;
 --brand-500:#1a7f6f;
 --brand-300:#4fb3a1;
 --brand-100:#e3f3ef;
 --gold:#e0a13a;
 --gold-deep:#c9861d;
 --gold-100:#fbf0db;
 --ink:#102320;
 --ink-2:#38524d;
 --muted:#6d827d;
 --line:#dfeae7;
 --bg:#f4f8f7;
 --surface:#ffffff;
 --radius-xl:24px;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-xs:0 1px 2px rgba(8,43,38,.06);
 --shadow-sm:0 4px 14px rgba(8,43,38,.07);
 --shadow-md:0 12px 32px rgba(8,43,38,.10);
 --shadow-lg:0 24px 60px rgba(8,43,38,.16);
 --ease:cubic-bezier(.22,.61,.36,1);
 --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(26,127,111,.45);outline-offset:2px;border-radius:6px;}
.container,.grid-container{
 width:100%;
 max-width:1180px;
 margin:0 auto;
 padding-left:20px;
 padding-right:20px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;
 top:0;
 z-index:80;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(180%) blur(14px);
 -webkit-backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(8,43,38,.10);}
.nav-wrap{
 display:flex;
 align-items:center;
 gap:26px;
 height:var(--header-h);
 position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:inline-flex;align-items:center;justify-content:center;
 color:#fff;
 background:linear-gradient(140deg,var(--brand-600),var(--brand-800));
 box-shadow:0 6px 16px rgba(13,79,69,.30);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--brand-900);white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
 position:relative;
 display:inline-flex;align-items:center;
 height:36px;padding:0 13px;
 font-size:14.5px;font-weight:600;color:var(--ink-2);
 border-radius:9px;
 transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active::after{
 content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--brand-600),var(--brand-300));
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-mega{position:relative;}
.mega-trigger{
 display:inline-flex;align-items:center;gap:6px;
 height:36px;padding:0 12px;border-radius:9px;
 border:1px solid var(--line);background:#fff;
 font-size:14px;font-weight:600;color:var(--ink-2);
 transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.mega-trigger:hover{color:var(--brand-700);border-color:var(--brand-300);box-shadow:var(--shadow-sm);}
.mega-trigger svg{transition:transform .2s var(--ease);}
.nav-mega:hover .mega-trigger svg,.nav-mega:focus-within .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
 position:absolute;top:calc(100% + 14px);right:0;width:540px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-lg);padding:18px;
 display:grid;grid-template-columns:1fr 1fr;gap:10px;
 opacity:0;visibility:hidden;transform:translateY(8px);
 transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-item{
 display:block;padding:12px;border-radius:12px;border:1px solid transparent;
 transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-item:hover{background:var(--brand-100);border-color:#cfe9e3;transform:translateY(-2px);}
.mega-item strong{display:block;font-size:14px;color:var(--brand-900);margin-bottom:3px;}
.mega-item span{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);}
.mega-foot{
 grid-column:1 / -1;margin-top:4px;padding-top:12px;border-top:1px dashed var(--line);
 font-size:12.5px;color:var(--muted);
}
.nav-toggle{
 display:none;width:44px;height:40px;border-radius:10px;
 border:1px solid var(--line);background:#fff;
 align-items:center;justify-content:center;flex-direction:column;gap:4px;
 margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transition:transform .25s var(--ease),opacity .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);}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:12px 24px;border-radius:10px;
 font-size:15px;font-weight:700;letter-spacing:.2px;
 border:1px solid transparent;
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
 background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
 color:#fff;box-shadow:0 10px 24px rgba(18,105,92,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,105,92,.36);color:#fff;}
.btn-gold{
 background:linear-gradient(135deg,var(--gold),var(--gold-deep));
 color:#3a2607;box-shadow:0 10px 24px rgba(201,134,29,.28);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(201,134,29,.36);color:#3a2607;}
.btn-ghost{
 background:#fff;border-color:var(--line);color:var(--brand-700);
}
.btn-ghost:hover{border-color:var(--brand-300);background:var(--brand-100);transform:translateY(-2px);}
.btn-outline-light{
 background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.42);color:#fff;
}
.btn-outline-light:hover{background:rgba(255,255,255,.18);border-color:#fff;transform:translateY(-2px);color:#fff;}
.btn-sm{min-height:38px;padding:9px 16px;font-size:14px;border-radius:9px;}
/* ---------- badges & tags ---------- */
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;
 font-size:12.5px;font-weight:600;letter-spacing:.2px;
 background:var(--brand-100);color:var(--brand-700);
 border:1px solid #cfe9e3;
}
.tag-gold{background:var(--gold-100);color:var(--gold-deep);border-color:#f2dcb0;}
.tag-glass{background:rgba(255,255,255,.14);color:#eaf7f4;border-color:rgba(255,255,255,.30);}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:1.4px;
 color:var(--brand-600);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-500),var(--brand-300));}
/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.article-hero-bg{
 position:absolute;inset:0;
 background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
 opacity:.38;
 transform:scale(1.03);
}
.article-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(112deg,rgba(7,43,38,.95) 0%,rgba(9,52,46,.72) 52%,rgba(7,43,38,.88) 100%);
}
.article-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:52px;}
.breadcrumb{
 display:flex;flex-wrap:wrap;align-items:center;gap:8px;
 font-size:13px;color:rgba(233,247,243,.75);
 margin-bottom:26px;
}
.breadcrumb a{color:rgba(233,247,243,.82);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .crumb-now{color:#fff;font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:rgba(224,161,58,.16);
 border:1px solid rgba(224,161,58,.45);
 color:#f4d79c;font-size:12.5px;font-weight:700;letter-spacing:.6px;
 margin-bottom:18px;
}
.article-hero h1{
 font-size:38px;line-height:1.35;font-weight:800;letter-spacing:.4px;
 color:#fff;max-width:900px;margin-bottom:16px;
 text-shadow:0 2px 18px rgba(3,24,21,.35);
}
.hero-summary{
 font-size:15.5px;line-height:1.85;color:rgba(232,246,242,.86);
 max-width:760px;margin-bottom:22px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.hero-meta{
 display:flex;flex-wrap:wrap;align-items:center;gap:14px;
 padding-top:18px;border-top:1px solid rgba(255,255,255,.16);
 font-size:13.5px;color:rgba(226,242,238,.82);
}
.hero-meta .dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.42);}
.hero-meta strong{color:#fff;font-weight:700;}
/* ---------- main layout ---------- */
.page-main{padding:52px 0 72px;}
.article-layout{
 display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start;
}
.article-panel{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-xl);
 box-shadow:var(--shadow-sm);
 padding:34px 34px 26px;
}
.article-panel-head{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding-bottom:16px;margin-bottom:24px;border-bottom:1px dashed var(--line);
}
.article-panel-head h2{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:.4px;}
.article-panel-head span{font-size:12.5px;color:var(--muted);}
.article-body{font-size:16px;line-height:1.88;color:var(--ink-2);word-break:break-word;}
.article-body h2{
 font-size:23px;line-height:1.5;font-weight:800;color:var(--brand-900);
 margin:36px 0 14px;padding-left:14px;border-left:4px solid var(--brand-500);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{
 font-size:18.5px;font-weight:700;color:var(--brand-800);
 margin:26px 0 10px;
}
.article-body h4{font-size:16.5px;font-weight:700;color:var(--brand-700);margin:20px 0 8px;}
.article-body p{margin:0 0 16px;}
.article-body strong{color:var(--brand-800);font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li{list-style:disc;margin-bottom:8px;}
.article-body ol li{list-style:decimal;margin-bottom:8px;}
.article-body img{border-radius:var(--radius);margin:22px 0;box-shadow:var(--shadow-sm);}
.article-body blockquote{
 margin:22px 0;padding:16px 20px;border-radius:var(--radius);
 background:var(--brand-100);border-left:4px solid var(--brand-500);
 color:var(--brand-800);font-size:15px;
}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--gold-deep);}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;}
.article-body th{background:var(--brand-100);color:var(--brand-800);font-weight:700;text-align:left;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;}
.article-body tr:nth-child(even) td{background:#fafcfb;}
.article-empty{
 text-align:center;padding:56px 20px 60px;
 background:#fbfdfc;border:1px dashed var(--line);border-radius:var(--radius-lg);
}
.article-empty h2{font-size:22px;color:var(--brand-900);margin-bottom:12px;}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px;}
/* ---------- sidebar ---------- */
.side-stack{display:grid;gap:20px;position:sticky;top:calc(var(--header-h) + 20px);}
.side-card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow-xs);
 padding:22px;
}
.side-card h3{
 font-size:15px;font-weight:800;color:var(--brand-900);
 display:flex;align-items:center;gap:8px;margin-bottom:16px;
}
.side-card h3 svg{color:var(--brand-500);}
.spec-list{display:grid;gap:11px;}
.spec-list li{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 font-size:13.5px;color:var(--muted);padding-bottom:10px;
 border-bottom:1px dashed var(--line);
}
.spec-list li:last-child{border-bottom:0;padding-bottom:0;}
.spec-list strong{color:var(--brand-800);font-weight:700;font-size:13.5px;}
.side-tags{display:flex;flex-wrap:wrap;gap:8px;}
.side-tags span{
 padding:5px 11px;border-radius:8px;font-size:12.5px;font-weight:600;
 background:#f3f9f7;color:var(--brand-700);border:1px solid #e2efeb;
}
.side-cta{
 background:linear-gradient(150deg,var(--brand-700),var(--brand-900));
 border-radius:var(--radius-lg);padding:24px;color:#fff;
 box-shadow:var(--shadow-md);
}
.side-cta h3{font-size:17px;font-weight:800;margin-bottom:8px;color:#fff;}
.side-cta p{font-size:13.5px;line-height:1.75;color:rgba(228,244,240,.82);margin-bottom:16px;}
.side-cta .btn{width:100%;}
/* ---------- sections ---------- */
.section{padding:64px 0;}
.section-alt{background:#eef5f3;}
.section-head{
 display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
 margin-bottom:32px;
}
.section-head h2{
 font-size:26px;font-weight:800;letter-spacing:.3px;color:var(--brand-900);
 line-height:1.45;
}
.section-head p{font-size:14.5px;color:var(--muted);margin-top:8px;max-width:560px;}
.section-head .eyebrow{margin-bottom:10px;}
/* points */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.point-card{
 display:flex;gap:16px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9e6df;}
.point-icon{
 flex:0 0 auto;width:46px;height:46px;border-radius:13px;
 display:inline-flex;align-items:center;justify-content:center;
 background:var(--brand-100);color:var(--brand-600);
}
.point-card h3{font-size:16.5px;font-weight:800;color:var(--brand-900);margin-bottom:6px;}
.point-card p{font-size:14px;line-height:1.78;color:var(--ink-2);}
.point-card .mini-tag{
 display:inline-block;margin-top:12px;font-size:12px;font-weight:700;
 color:var(--gold-deep);background:var(--gold-100);
 padding:3px 10px;border-radius:6px;
}
/* stats */
.stat-band{
 background:linear-gradient(120deg,var(--brand-800),var(--brand-900));
 border-radius:var(--radius-xl);
 padding:38px 32px;
 display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
 box-shadow:var(--shadow-lg);
 position:relative;overflow:hidden;
}
.stat-band::before{
 content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle,rgba(79,179,161,.30),transparent 70%);
}
.stat-item{position:relative;z-index:2;}
.stat-item .num{
 font-size:30px;font-weight:800;color:#fff;letter-spacing:.6px;line-height:1.2;
 display:flex;align-items:baseline;gap:4px;
}
.stat-item .num em{font-style:normal;font-size:14px;font-weight:700;color:var(--brand-300);}
.stat-item .label{font-size:13.5px;color:rgba(222,241,236,.78);margin-top:6px;}
/* rail */
.rail-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rail-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e6df;}
.rail-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#dfeae7;}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.rail-card:hover .rail-thumb img{transform:scale(1.05);}
.rail-thumb .rail-tag{
 position:absolute;left:12px;top:12px;
 padding:4px 10px;border-radius:6px;font-size:11.5px;font-weight:700;
 background:rgba(7,43,38,.82);color:#dff2ee;backdrop-filter:blur(4px);
}
.rail-body{padding:18px 20px 20px;}
.rail-body h3{font-size:16px;font-weight:800;color:var(--brand-900);line-height:1.55;margin-bottom:8px;}
.rail-body p{font-size:13.5px;line-height:1.75;color:var(--muted);}
.rail-meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:12px;color:var(--brand-500);font-weight:600;}
/* faq */
.faq-wrap{display:grid;grid-template-columns:0.85fr 1.15fr;gap:34px;align-items:start;}
.faq-side h2{font-size:26px;font-weight:800;color:var(--brand-900);line-height:1.45;margin-bottom:12px;}
.faq-side p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.faq-list{display:grid;gap:12px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:0 20px;box-shadow:var(--shadow-xs);
 transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:#c9e6df;box-shadow:var(--shadow-sm);}
.faq-item summary{
 list-style:none;cursor:pointer;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:17px 0;font-size:15.5px;font-weight:700;color:var(--brand-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand-500);line-height:1;
 transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{font-size:14.5px;line-height:1.82;color:var(--ink-2);padding-bottom:18px;}
/* cta */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:var(--radius-xl);
 background:linear-gradient(120deg,var(--brand-800) 0%,var(--brand-600) 100%);
 color:#fff;padding:52px 48px;
 box-shadow:var(--shadow-lg);
 display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
}
.cta-band::before{
 content:"";position:absolute;right:-70px;bottom:-110px;width:320px;height:320px;border-radius:50%;
 background:radial-gradient(circle,rgba(224,161,58,.28),transparent 68%);
}
.cta-band::after{
 position:absolute;inset:0;
 background:url(/assets/images/backpic/back-6.webp) center/cover no-repeat;
 opacity:.14;pointer-events:none;content:"";
}
.cta-text{position:relative;z-index:2;}
.cta-text h2{font-size:28px;font-weight:800;line-height:1.42;margin-bottom:12px;color:#fff;}
.cta-text p{font-size:14.5px;line-height:1.85;color:rgba(228,244,240,.85);max-width:560px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn{width:100%;}
.cta-note{font-size:12.5px;color:rgba(224,240,236,.7);text-align:center;}
/* ---------- footer ---------- */
.site-footer{
 background:#062420;color:#cfe3de;
 padding:56px 0 0;margin-top:0;
 border-top:3px solid var(--brand-600);
}
.footer-grid{
 display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;
 padding-bottom:40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{font-size:16px;font-weight:800;color:#fff;letter-spacing:.3px;}
.footer-about{font-size:13.5px;line-height:1.85;color:#9fbdb6;max-width:380px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:13.5px;color:#9fbdb6;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--brand-300);transform:translateX(3px);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
 font-size:12px;padding:4px 10px;border-radius:6px;
 background:rgba(255,255,255,.06);color:#a8c6bf;border:1px solid rgba(255,255,255,.08);
}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.10);
 padding:20px 0 24px;
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 font-size:12.5px;color:#84a49d;
}
/* ---------- responsive ---------- */
@media (max-width:1023px){
 .nav-toggle{display:inline-flex;}
 .nav-menu{
  position:absolute;top:calc(var(--header-h) - 1px);left:-20px;right:-20px;
  display:none;flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-md);padding:12px 20px 16px;margin-left:0;
 }
 .nav-menu.is-open{display:flex;}
 .nav-link{height:44px;font-size:15px;}
 .nav-link.is-active::after{left:13px;right:auto;width:26px;}
 .nav-mega{display:none;}
 .article-hero h1{font-size:30px;}
 .article-layout{grid-template-columns:1fr;gap:26px;}
 .side-stack{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
 .point-grid{grid-template-columns:1fr;}
 .rail-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
 .faq-wrap{grid-template-columns:1fr;gap:22px;}
 .cta-band{grid-template-columns:1fr;padding:40px 30px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
 .footer-about{max-width:none;}
}
@media (max-width:768px){
 .article-hero .container{padding-top:24px;padding-bottom:38px;}
 .article-hero h1{font-size:25px;}
 .hero-summary{font-size:14.5px;}
 .breadcrumb .crumb-now{max-width:180px;}
 .article-panel{padding:24px 20px 18px;border-radius:var(--radius-lg);}
 .article-body{font-size:15px;}
 .article-body h2{font-size:20px;}
 .page-main{padding:36px 0 52px;}
 .section{padding:46px 0;}
 .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
 .section-head h2{font-size:22px;}
 .rail-grid{grid-template-columns:1fr;}
 .side-stack{grid-template-columns:1fr;}
 .stat-band{padding:28px 22px;}
 .stat-item .num{font-size:25px;}
 .cta-text h2{font-size:22px;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .nav-right .btn{min-height:36px;padding:8px 14px;font-size:13px;}
}
@media (max-width:520px){
 .brand-text{font-size:14.5px;}
 .nav-right .btn{display:none;}
 .article-hero h1{font-size:22px;line-height:1.42;}
 .point-card{padding:18px;gap:12px;}
 .rail-body{padding:15px 16px 17px;}
 .cta-band{padding:32px 20px;}
 .footer-bottom{flex-direction:column;}
}

/* roulang page: category3 */
:root{
 --brand-900:#072b26;
 --brand-800:#0a3a33;
 --brand-700:#0d4f45;
 --brand-600:#12695c;
 --brand-500:#1a7f6f;
 --brand-300:#4fb3a1;
 --brand-100:#e3f3ef;
 --gold:#e0a13a;
 --gold-deep:#c9861d;
 --gold-100:#fbf0db;
 --ink:#102320;
 --ink-2:#38524d;
 --muted:#6d827d;
 --line:#dfeae7;
 --bg:#f4f8f7;
 --surface:#ffffff;
 --radius-xl:24px;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-xs:0 1px 2px rgba(8,43,38,.06);
 --shadow-sm:0 4px 14px rgba(8,43,38,.07);
 --shadow-md:0 12px 32px rgba(8,43,38,.10);
 --shadow-lg:0 24px 60px rgba(8,43,38,.16);
 --ease:cubic-bezier(.22,.61,.36,1);
 --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--brand-900);font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{
 width:100%;max-width:1180px;margin:0 auto;
 padding-left:20px;padding-right:20px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(180%) blur(14px);
 -webkit-backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(8,43,38,.10);}
.nav-wrap{display:flex;align-items:center;gap:26px;height:var(--header-h);position:relative;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:inline-flex;align-items:center;justify-content:center;color:#fff;
 background:linear-gradient(140deg,var(--brand-600),var(--brand-800));
 box-shadow:0 6px 16px rgba(13,79,69,.30);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--brand-900);white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
 position:relative;display:inline-flex;align-items:center;
 height:36px;padding:0 13px;font-size:14.5px;font-weight:600;color:var(--ink-2);
 border-radius:9px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active::after{
 content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--brand-600),var(--brand-300));
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-mega{position:relative;}
.mega-trigger{
 display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:9px;
 border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);
 transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.mega-trigger:hover{color:var(--brand-700);border-color:var(--brand-300);box-shadow:var(--shadow-sm);}
.mega-trigger svg{transition:transform .2s var(--ease);}
.nav-mega:hover .mega-trigger svg,.nav-mega:focus-within .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
 position:absolute;top:calc(100% + 14px);right:0;width:540px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-lg);padding:18px;
 display:grid;grid-template-columns:1fr 1fr;gap:10px;
 opacity:0;visibility:hidden;transform:translateY(8px);
 transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-item{
 display:block;padding:12px;border-radius:12px;border:1px solid transparent;
 transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-item:hover{background:var(--brand-100);border-color:#cfe9e3;transform:translateY(-2px);}
.mega-item strong{display:block;font-size:14px;color:var(--brand-900);margin-bottom:3px;}
.mega-item span{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);}
.mega-foot{grid-column:1 / -1;margin-top:4px;padding-top:12px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted);}
.nav-toggle{
 display:none;width:44px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
 align-items:center;justify-content:center;flex-direction:column;gap:4px;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transition:transform .25s var(--ease),opacity .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);}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:12px 24px;border-radius:10px;
 font-size:15px;font-weight:700;letter-spacing:.2px;border:1px solid transparent;
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-700));color:#fff;box-shadow:0 10px 24px rgba(18,105,92,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,105,92,.36);color:#fff;}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:#c9e3dc;}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--shadow-sm);color:var(--brand-800);}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#3a2703;box-shadow:0 10px 24px rgba(201,134,29,.28);}
.btn-gold:hover{transform:translateY(-2px);color:#2c1d02;box-shadow:0 14px 30px rgba(201,134,29,.34);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;border-radius:9px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,.faq-item summary:focus-visible{outline:3px solid rgba(79,179,161,.5);outline-offset:2px;}
/* ---------- hero ---------- */
.page-hero{
 position:relative;overflow:hidden;
 padding:64px 0 58px;
 background:
  radial-gradient(900px 380px at 88% -10%,rgba(79,179,161,.20),transparent 68%),
  radial-gradient(620px 300px at 4% 110%,rgba(224,161,58,.16),transparent 70%),
  linear-gradient(180deg,#f7fbfa 0%,#eef6f4 100%);
 border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumb a:hover{color:var(--brand-600);}
.crumb span.sep{color:#b6c9c4;}
.hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:#fff;border:1px solid #cfe9e3;
 font-size:13px;font-weight:700;color:var(--brand-700);
 box-shadow:var(--shadow-xs);
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--gold);display:inline-block;}
.page-hero h1{
 margin:16px 0 14px;
 font-size:40px;line-height:1.28;letter-spacing:-.4px;
}
.page-hero h1 em{font-style:normal;color:var(--brand-600);}
.hero-sub{font-size:16px;color:var(--ink-2);max-width:560px;line-height:1.8;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:7px 15px;border-radius:999px;
 background:#fff;border:1px solid var(--line);
 font-size:13px;font-weight:600;color:var(--brand-700);
 box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.tag:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--shadow-sm);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-media{position:relative;}
.hero-media img{
 width:100%;aspect-ratio:5/4;object-fit:cover;
 border-radius:var(--radius-xl);
 border:1px solid #d6ebe6;
 box-shadow:var(--shadow-lg);
}
.hero-badge{
 position:absolute;left:-14px;bottom:22px;
 background:#fff;border:1px solid var(--line);border-radius:16px;
 padding:14px 18px;box-shadow:var(--shadow-md);
 display:flex;align-items:center;gap:12px;
}
.hero-badge strong{display:block;font-size:20px;color:var(--brand-700);line-height:1.2;}
.hero-badge span{font-size:12.5px;color:var(--muted);}
/* ---------- section ---------- */
.section{padding:72px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{
 display:flex;align-items:center;gap:12px;
 font-size:26px;letter-spacing:-.2px;
}
.section-title::before{
 content:"";width:6px;height:24px;border-radius:4px;
 background:linear-gradient(180deg,var(--brand-500),var(--brand-300));
 display:inline-block;flex:0 0 auto;
}
.section-head.center .section-title{justify-content:center;}
.section-sub{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8;}
/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.card-grid.cols-4{grid-template-columns:repeat(4,1fr);}
.info-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-xs);
 transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
 display:flex;flex-direction:column;gap:10px;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfdfd8;}
.card-icon{
 width:42px;height:42px;border-radius:12px;
 display:inline-flex;align-items:center;justify-content:center;
 background:var(--brand-100);color:var(--brand-700);
}
.card-icon.gold{background:var(--gold-100);color:var(--gold-deep);}
.card-title{font-size:17px;font-weight:800;color:var(--brand-900);}
.card-text{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:10px;}
.chip{
 font-size:12px;font-weight:600;color:var(--brand-700);
 background:var(--brand-100);border-radius:999px;padding:4px 11px;
}
.chip.gold{background:var(--gold-100);color:var(--gold-deep);}
/* ---------- scene ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.scene-card{
 display:flex;gap:18px;align-items:flex-start;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-xs);
 transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfdfd8;}
.scene-card img{
 width:96px;height:96px;border-radius:14px;object-fit:cover;flex:0 0 auto;
 border:1px solid var(--line);
}
.scene-body h3{font-size:16.5px;margin-bottom:6px;}
.scene-body p{font-size:14.5px;color:var(--ink-2);}
/* ---------- demo ---------- */
.demo-wrap{
 display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;align-items:stretch;
}
.demo-panel{
 background:linear-gradient(160deg,var(--brand-800),var(--brand-900));
 border-radius:var(--radius-xl);
 padding:32px;color:#eaf6f3;box-shadow:var(--shadow-lg);
 position:relative;overflow:hidden;
}
.demo-panel::after{
 content:"";position:absolute;right:-70px;bottom:-80px;width:220px;height:220px;border-radius:50%;
 background:radial-gradient(circle,rgba(79,179,161,.35),transparent 70%);
}
.demo-panel h3{color:#fff;font-size:21px;margin-bottom:10px;}
.demo-panel p{font-size:14.5px;color:#bfdcd6;line-height:1.85;}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px;position:relative;z-index:1;}
.stat{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
 border-radius:14px;padding:16px 14px;
}
.stat strong{display:block;font-size:22px;color:var(--gold);line-height:1.2;}
.stat span{font-size:12.5px;color:#a9ccc5;}
.steps-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);
 padding:30px;box-shadow:var(--shadow-sm);
}
.step-list{display:flex;flex-direction:column;gap:18px;}
.step{display:flex;gap:14px;align-items:flex-start;}
.step-num{
 width:30px;height:30px;flex:0 0 auto;border-radius:9px;
 display:inline-flex;align-items:center;justify-content:center;
 background:var(--brand-100);color:var(--brand-700);font-weight:800;font-size:13.5px;
}
.step h4{font-size:15.5px;margin-bottom:4px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.78;}
/* ---------- pitfalls ---------- */
.pitfall-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.pitfall-item{
 background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--gold);
 border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.pitfall-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);}
.pitfall-item h4{font-size:15.5px;margin-bottom:6px;}
.pitfall-item p{font-size:14px;color:var(--ink-2);}
/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.post-card{
 display:flex;flex-direction:column;overflow:hidden;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-xs);
 transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfdfd8;}
.post-cover{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--brand-100);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);}
.post-meta b{color:var(--brand-600);font-weight:700;}
.post-title{font-size:16px;font-weight:800;color:var(--brand-900);line-height:1.55;}
.post-excerpt{font-size:14px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-more{display:flex;justify-content:center;margin-top:32px;}
.post-empty{
 text-align:center;color:var(--muted);font-size:14.5px;
 background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);
 padding:34px 20px;
}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:6px 22px;box-shadow:var(--shadow-xs);
 transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:#bfdfd8;box-shadow:var(--shadow-sm);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 0;
 font-size:15.5px;font-weight:800;color:var(--brand-900);
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-weight:700;color:var(--brand-500);font-size:20px;line-height:1;
 transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{font-size:14.5px;color:var(--ink-2);padding:0 0 20px;line-height:1.85;}
/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:var(--radius-xl);
 padding:44px 40px;
 background:
  linear-gradient(120deg,rgba(10,58,51,.92),rgba(18,105,92,.86)),
  url('/assets/images/backpic/back-4.webp') center/cover no-repeat;
 color:#eaf6f3;box-shadow:var(--shadow-lg);
 display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h3{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:#c6e2dc;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#b9d5cf;padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:800;}
.footer-about{font-size:14px;line-height:1.85;color:#9dc0b9;max-width:400px;}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:14px;font-weight:800;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#a7c8c1;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
 font-size:12.5px;color:#a7c8c1;
 border:1px solid rgba(255,255,255,.16);border-radius:999px;
 padding:5px 12px;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.footer-tags span:hover{border-color:rgba(79,179,161,.6);color:#fff;}
.footer-bottom{
 margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:#8fb3ac;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .page-hero h1{font-size:34px;}
 .hero-inner{gap:32px;}
 .card-grid,.card-grid.cols-4,.post-grid{grid-template-columns:repeat(2,1fr);}
 .demo-wrap{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
 .footer-about{max-width:none;}
}
@media (max-width:900px){
 .nav-toggle{display:inline-flex;}
 .nav-mega{display:none;}
 .nav-menu{
  position:absolute;top:var(--header-h);left:0;right:0;
  flex-direction:column;align-items:stretch;gap:6px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:14px 20px 18px;box-shadow:var(--shadow-md);
  display:none;
 }
 .nav-menu.is-open{display:flex;}
 .nav-link{height:44px;padding:0 14px;font-size:15px;}
 .nav-link.is-active::after{left:14px;right:auto;width:26px;}
 .nav-right{margin-left:auto;gap:8px;}
 .section{padding:56px 0;}
 .section-title{font-size:23px;}
}
@media (max-width:768px){
 .hero-inner{grid-template-columns:1fr;}
 .hero-media{order:-1;}
 .hero-media img{aspect-ratio:16/10;}
 .hero-badge{left:auto;right:14px;bottom:-16px;padding:12px 16px;}
 .page-hero{padding:44px 0 52px;}
 .page-hero h1{font-size:29px;}
 .scene-grid,.pitfall-list{grid-template-columns:1fr;}
 .scene-card img{width:76px;height:76px;}
 .stat-row{grid-template-columns:1fr 1fr 1fr;gap:10px;}
 .cta-band{padding:32px 24px;}
 .cta-band h3{font-size:20px;}
 .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
 .page-hero h1{font-size:25px;}
 .card-grid,.card-grid.cols-4,.post-grid{grid-template-columns:1fr;}
 .stat-row{grid-template-columns:1fr;}
 .hero-actions .btn,.cta-actions .btn{width:100%;}
 .btn{min-height:46px;}
 .footer-bottom{flex-direction:column;gap:8px;}
 .section{padding:44px 0;}
}

/* roulang page: category2 */
:root{
 --brand-900:#072b26;
 --brand-800:#0a3a33;
 --brand-700:#0d4f45;
 --brand-600:#12695c;
 --brand-500:#1a7f6f;
 --brand-300:#4fb3a1;
 --brand-100:#e3f3ef;
 --gold:#e0a13a;
 --gold-deep:#c9861d;
 --gold-100:#fbf0db;
 --ink:#102320;
 --ink-2:#38524d;
 --muted:#6d827d;
 --line:#dfeae7;
 --bg:#f4f8f7;
 --surface:#ffffff;
 --radius-xl:24px;
 --radius-lg:18px;
 --radius:14px;
 --radius-sm:10px;
 --shadow-xs:0 1px 2px rgba(8,43,38,.06);
 --shadow-sm:0 4px 14px rgba(8,43,38,.07);
 --shadow-md:0 12px 32px rgba(8,43,38,.10);
 --shadow-lg:0 24px 60px rgba(8,43,38,.16);
 --ease:cubic-bezier(.22,.61,.36,1);
 --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.78;color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;color:var(--brand-900);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(26,127,111,.45);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:74px 0;position:relative;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--dark{
 background:linear-gradient(150deg,var(--brand-900) 0%,var(--brand-800) 52%,#0f5d51 100%);
 color:#e8f4f1;
}
.section--dark .sec-title{color:#fff;}
.section--dark .sec-desc{color:#bcd8d2;}
.section--dark .sec-kicker{color:var(--gold);}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(180%) blur(14px);
 -webkit-backdrop-filter:saturate(180%) blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(8,43,38,.10);}
.nav-wrap{display:flex;align-items:center;gap:26px;height:var(--header-h);position:relative;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:inline-flex;align-items:center;justify-content:center;
 color:#fff;background:linear-gradient(140deg,var(--brand-600),var(--brand-800));
 box-shadow:0 6px 16px rgba(13,79,69,.30);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--brand-900);white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
 position:relative;display:inline-flex;align-items:center;
 height:36px;padding:0 13px;font-size:14.5px;font-weight:600;color:var(--ink-2);
 border-radius:9px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active::after{
 content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--brand-600),var(--brand-300));
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-mega{position:relative;}
.mega-trigger{
 display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:9px;
 border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);
 transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.mega-trigger:hover{color:var(--brand-700);border-color:var(--brand-300);box-shadow:var(--shadow-sm);}
.mega-trigger svg{transition:transform .2s var(--ease);}
.nav-mega:hover .mega-trigger svg,.nav-mega:focus-within .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
 position:absolute;top:calc(100% + 14px);right:0;width:540px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-lg);padding:18px;
 display:grid;grid-template-columns:1fr 1fr;gap:10px;
 opacity:0;visibility:hidden;transform:translateY(8px);
 transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-item{
 display:block;padding:12px;border-radius:12px;border:1px solid transparent;
 transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-item:hover{background:var(--brand-100);border-color:#cfe9e3;transform:translateY(-2px);}
.mega-item strong{display:block;font-size:14px;color:var(--brand-900);margin-bottom:3px;}
.mega-item span{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);}
.mega-foot{
 grid-column:1 / -1;margin-top:4px;padding-top:12px;border-top:1px dashed var(--line);
 font-size:12.5px;color:var(--muted);
}
.nav-toggle{
 display:none;width:44px;height:40px;border-radius:10px;
 border:1px solid var(--line);background:#fff;
 align-items:center;justify-content:center;flex-direction:column;gap:4px;
 margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transition:transform .25s var(--ease),opacity .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);}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:46px;padding:12px 26px;border-radius:10px;
 font-size:15px;font-weight:700;letter-spacing:.2px;border:1px solid transparent;
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-700));color:#fff;box-shadow:0 10px 24px rgba(18,105,92,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,105,92,.36);color:#fff;}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:#cfe4df;box-shadow:var(--shadow-xs);}
.btn-ghost:hover{border-color:var(--brand-300);transform:translateY(-2px);box-shadow:var(--shadow-sm);color:var(--brand-700);}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#3a2705;box-shadow:0 10px 24px rgba(201,134,29,.34);}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(201,134,29,.42);color:#3a2705;}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);color:#fff;}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;border-radius:9px;}
/* ---------- hero ---------- */
.page-hero{
 position:relative;padding:64px 0 78px;overflow:hidden;
 background:
  radial-gradient(900px 420px at 88% -10%,rgba(26,127,111,.16),transparent 70%),
  radial-gradient(700px 380px at 0% 110%,rgba(224,161,58,.14),transparent 68%),
  linear-gradient(160deg,#f2f9f7 0%,#e9f4f1 52%,#f8fbfa 100%);
}
.page-hero::after{
 content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
 background:linear-gradient(90deg,transparent,var(--line),transparent);
}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;position:relative;z-index:2;}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
 background:rgba(255,255,255,.88);border:1px solid #d5e9e4;
 font-size:13px;font-weight:700;color:var(--brand-700);box-shadow:var(--shadow-xs);
}
.hero-eyebrow svg{color:var(--gold-deep);}
.hero-title{font-size:clamp(28px,3.4vw,44px);margin:18px 0 16px;letter-spacing:-.02em;}
.hero-lead{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
 display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
 background:#fff;border:1px solid #d5e9e4;font-size:13px;font-weight:600;
 color:var(--brand-700);box-shadow:var(--shadow-xs);
}
.hero-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px;}
.kpi{
 padding:14px 16px;border-radius:var(--radius);background:rgba(255,255,255,.92);
 border:1px solid var(--line);box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);}
.kpi b{display:block;font-size:21px;color:var(--brand-700);line-height:1.2;}
.kpi span{font-size:12.5px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-shot{
 position:relative;border-radius:var(--radius-xl);overflow:hidden;
 box-shadow:var(--shadow-lg);transform:rotate(-2deg);
 border:1px solid rgba(255,255,255,.8);
}
.hero-shot img{width:100%;height:420px;object-fit:cover;}
.hero-shot::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(7,43,38,0) 42%,rgba(7,43,38,.70) 100%);
}
.hero-caption{position:absolute;left:24px;right:24px;bottom:22px;z-index:2;color:#fff;}
.hero-caption strong{display:block;font-size:16px;letter-spacing:.2px;}
.hero-caption span{display:block;font-size:13px;color:rgba(255,255,255,.82);margin-top:2px;}
.hero-float{
 position:absolute;left:-26px;bottom:-28px;z-index:3;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-md);padding:14px 20px;transform:rotate(2deg);
}
.hero-float b{display:block;font-size:17px;color:var(--brand-700);line-height:1.3;}
.hero-float span{font-size:12.5px;color:var(--muted);}
/* ---------- section head ---------- */
.sec-head{max-width:740px;margin-bottom:40px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
 color:var(--gold-deep);
}
.sec-kicker::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--gold);}
.sec-head--center .sec-kicker::after{content:"";width:26px;height:2px;border-radius:2px;background:var(--gold);}
.sec-title{font-size:clamp(23px,2.4vw,32px);margin:14px 0 14px;}
.sec-desc{color:var(--ink-2);font-size:15.5px;line-height:1.85;}
/* ---------- cards ---------- */
.card-grid{display:grid;gap:22px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.rule-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 24px;box-shadow:var(--shadow-xs);
 display:flex;flex-direction:column;gap:12px;
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rule-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfe0d8;}
.card-icon{
 width:46px;height:46px;border-radius:13px;display:inline-flex;
 align-items:center;justify-content:center;
 background:var(--brand-100);color:var(--brand-700);
}
.card-title{font-size:17px;}
.card-text{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.chip{
 display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
 font-size:12.5px;font-weight:600;background:#f2f8f6;color:var(--brand-600);
 border:1px solid #d9ebe6;
}
/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-card{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);
 border-radius:var(--radius-lg);padding:26px 22px;
 transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.11);border-color:rgba(224,161,58,.5);}
.stat-card b{display:block;font-size:28px;line-height:1.15;color:var(--gold);}
.stat-card h3{color:#fff;font-size:15.5px;margin:10px 0 6px;}
.stat-card p{font-size:13.5px;color:#b9d5cf;line-height:1.7;}
.dark-note{
 margin-top:28px;padding:20px 24px;border-radius:var(--radius);
 border:1px dashed rgba(255,255,255,.24);color:#cfe6e0;font-size:14.5px;line-height:1.8;
}
.dark-note strong{color:#fff;}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step;}
.step{
 position:relative;padding:34px 22px 24px;background:#fff;
 border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfe0d8;}
.step::before{
 counter-increment:step;content:counter(step,decimal-leading-zero);
 position:absolute;top:-16px;left:22px;
 font-size:13px;font-weight:800;letter-spacing:.08em;color:#fff;
 background:linear-gradient(135deg,var(--brand-500),var(--brand-700));
 padding:5px 13px;border-radius:999px;box-shadow:0 6px 14px rgba(18,105,92,.26);
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.78;}
/* ---------- split / checklist ---------- */
.split{display:grid;grid-template-columns:0.85fr 1.15fr;gap:52px;align-items:center;}
.check-list{display:grid;gap:14px;}
.check-item{
 display:flex;gap:14px;padding:20px 22px;background:#fff;
 border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#bfe0d8;}
.check-dot{
 flex:0 0 28px;width:28px;height:28px;border-radius:50%;
 background:var(--gold-100);color:var(--gold-deep);
 display:inline-flex;align-items:center;justify-content:center;
 font-size:13px;font-weight:800;margin-top:2px;
}
.check-item h4{font-size:15.5px;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--ink-2);line-height:1.75;}
/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.scene-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bfe0d8;}
.scene-card img{width:100%;height:172px;object-fit:cover;}
.scene-body{padding:22px 24px 24px;}
.scene-body h3{font-size:16.5px;margin-bottom:8px;}
.scene-body p{font-size:14px;color:var(--ink-2);line-height:1.78;}
/* ---------- news ---------- */
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.news-item{
 display:block;padding:24px;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);box-shadow:var(--shadow-xs);
 transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bfe0d8;}
.news-item h3{font-size:16.5px;line-height:1.55;margin-bottom:8px;transition:color .2s var(--ease);}
.news-item:hover h3{color:var(--brand-600);}
.news-item p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.news-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--muted);margin-top:12px;}
.news-meta span{color:var(--brand-600);font-weight:700;}
.news-empty{
 padding:32px;text-align:center;color:var(--muted);font-size:14.5px;
 background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-xs);overflow:hidden;
 transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:#bfe0d8;box-shadow:var(--shadow-sm);}
.faq-item summary{
 cursor:pointer;list-style:none;padding:20px 24px;
 display:flex;align-items:center;justify-content:space-between;gap:18px;
 font-size:15.5px;font-weight:700;color:var(--brand-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand-500);
 line-height:1;transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{content:"–";color:var(--gold-deep);}
.faq-item p{padding:0 24px 22px;font-size:14.5px;color:var(--ink-2);line-height:1.82;}
/* ---------- cta ---------- */
.cta-band{padding:0 0 88px;background:#fff;}
.cta-inner{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 padding:56px 52px;
 background:linear-gradient(120deg,var(--brand-800) 0%,var(--brand-600) 58%,var(--brand-500) 100%);
 box-shadow:var(--shadow-lg);color:#fff;
}
.cta-inner::before{
 content:"";position:absolute;right:-90px;top:-110px;width:340px;height:340px;border-radius:50%;
 background:radial-gradient(circle,rgba(224,161,58,.42),transparent 70%);
}
.cta-inner::after{
 content:"";position:absolute;left:-60px;bottom:-120px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle,rgba(79,179,161,.30),transparent 70%);
}
.cta-inner > *{position:relative;z-index:2;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,32px);}
.cta-inner p{color:#cfe7e1;margin-top:14px;max-width:660px;font-size:15.5px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#c4dcd6;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.4fr;gap:48px;padding:60px 0 44px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px;}
.footer-brand strong{font-size:16px;letter-spacing:.2px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--brand-500),var(--brand-700));}
.footer-about{font-size:14px;line-height:1.85;color:#9fbdb7;max-width:34em;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.2px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#a9c6c0;}
.footer-links a:hover{color:#fff;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
 font-size:12.5px;padding:5px 12px;border-radius:999px;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#c9e0da;
}
.footer-bottom{
 display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
 padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.12);
 font-size:13px;color:#8fada7;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:46px;}
 .hero-shot{transform:none;}
 .hero-shot img{height:340px;}
 .hero-float{position:static;margin-top:16px;transform:none;display:inline-block;}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .steps,.stat-grid{grid-template-columns:repeat(2,1fr);}
 .scene-grid{grid-template-columns:1fr 1fr;}
 .split{grid-template-columns:1fr;gap:34px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
 .cta-inner{padding:46px 36px;}
}
@media (max-width:960px){
 .nav-wrap{gap:12px;}
 .brand{order:1;}
 .nav-right{order:2;margin-left:0;gap:8px;}
 .nav-toggle{order:3;display:inline-flex;margin-left:auto;}
 .nav-mega{display:none;}
 .nav-menu{
  position:absolute;top:calc(var(--header-h) + 1px);left:0;right:0;
  display:none;flex-direction:column;align-items:stretch;gap:2px;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-md);padding:10px 16px 16px;margin:0;
 }
 .nav-menu.is-open{display:flex;}
 .nav-link{height:46px;padding:0 14px;}
 .nav-link.is-active::after{display:none;}
}
@media (max-width:768px){
 .section{padding:54px 0;}
 .page-hero{padding:44px 0 58px;}
 .grid-4,.grid-3,.grid-2,.steps,.stat-grid,.scene-grid,.news-list{grid-template-columns:1fr;}
 .hero-kpi{grid-template-columns:1fr 1fr;}
 .hero-shot img{height:270px;}
 .footer-grid{grid-template-columns:1fr;gap:30px;padding:44px 0 32px;}
 .cta-band{padding-bottom:64px;}
 .cta-inner{padding:38px 24px;border-radius:var(--radius-lg);}
 .cta-actions .btn{width:100%;}
 .sec-head{margin-bottom:30px;}
}
@media (max-width:520px){
 .hero-title{font-size:25px;}
 .hero-kpi{grid-template-columns:1fr;}
 .hero-actions .btn{width:100%;}
 .nav-right .btn-sm{padding:8px 12px;font-size:13px;}
 .news-item{padding:20px;}
 .faq-item summary{padding:18px 18px;font-size:14.5px;}
 .faq-item p{padding:0 18px 18px;}
 .footer-bottom{font-size:12.5px;}
}