/* roulang page: index */
:root {
  --brand-deep: #073B2A;
  --brand: #0E6B48;
  --brand-bright: #149A61;
  --accent: #F45B22;
  --accent-soft: #FFE3D6;
  --sun: #FFD84D;
  --bg: #F5F7F4;
  --surface: #FFFFFF;
  --ink: #16211C;
  --muted: #5F6E64;
  --line: #D9E2DB;
  --danger: #D32F2F;
  --success: #2E7D32;
  --radius-sm: 6px;
  --radius-card: 12px;
  --radius-panel: 20px;
  --radius-pill: 999px;
  --container: 1280px;
  --shadow-sm: 0 2px 10px rgba(7,59,42,0.06);
  --shadow-md: 0 10px 30px rgba(7,59,42,0.1);
  --shadow-lg: 0 20px 45px rgba(7,59,42,0.18);
  --font-sans: "Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
  --font-num: "DIN Alternate","Bahnschrift","Arial Narrow",var(--font-sans);
  --ease: cubic-bezier(.22,.61,.36,1);
  --max-text: 780px;
}
*,*::before,*::after{
  box-sizing:border-box;
}
html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,dd,dl,ol,ul{
  margin:0;
}
ul,ol{
  padding:0;
  list-style:none;
}
a{
  color:inherit;
  text-decoration:none;
}
a:hover{
  color:var(--brand);
}
img{
  max-width:100%;
  display:block;
  border:0;
}
button,input,select,textarea{
  font:inherit;
  color:inherit;
}
button{
  cursor:pointer;
  border:none;
  background:none;
}
:focus-visible{
  outline:3px solid rgba(244,91,34,.45);
  outline-offset:2px;
}
.container{
  width:min(var(--container),100% - 48px);
  margin-inline:auto;
}
.section{
  padding-block:clamp(64px,7vw,112px);
}
.section-lead{
  background:var(--surface);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  margin-bottom:clamp(36px,4.5vw,60px);
  max-width:880px;
}
.section-head.is-center{
  margin-inline:auto;
  text-align:center;
}
.section-head.center-left{
  margin-inline:0;
  text-align:left;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--brand);
  background:rgba(14,107,72,.08);
  border-radius:var(--radius-pill);
  padding:7px 14px;
  margin-bottom:16px;
  text-transform:none;
}
.eyebrow::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
}
.section-head h2{
  font-size:clamp(1.5rem,2.4vw,2.4rem);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.015em;
  color:var(--brand-deep);
}
.section-head p{
  margin-top:16px;
  color:var(--muted);
  font-size:1rem;
  max-width:800px;
}
.is-center .section-head p{
  margin-inline:auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  font-weight:700;
  font-size:.95rem;
  line-height:1;
  border:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease),transform .2s var(--ease);
  white-space:nowrap;
}
.btn:hover{
  transform:translateY(-2px);
}
.btn:active{
  transform:translateY(0);
}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 20px rgba(244,91,34,.22);
}
.btn-accent:hover{
  background:#e64c12;
  color:#fff;
  box-shadow:0 12px 26px rgba(244,91,34,.3);
}
.btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-ghost:hover{
  border-color:#fff;
  background:rgba(255,255,255,.1);
  color:#fff;
}
.btn-green{
  background:var(--brand);
  color:#fff;
}
.btn-green:hover{
  background:var(--brand-bright);
  color:#fff;
}
.btn-lg{
  min-height:52px;
  padding:0 28px;
  border-radius:var(--radius-sm);
  font-size:1rem;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  color:var(--brand);
  transition:color .2s var(--ease),gap .2s var(--ease);
}
.text-link:hover{
  color:var(--accent);
  gap:9px;
}

/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(245,247,244,.94);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(217,226,219,.8);
}
.header-inner{
  position:relative;
  height:76px;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:22px;
  width:min(var(--container),100% - 48px);
  margin-inline:auto;
}
.nav-left,.nav-right{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-right{
  justify-content:flex-end;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:0 12px;
  font-weight:600;
  font-size:.95rem;
  color:var(--ink);
  border-radius:6px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{
  background:rgba(14,107,72,.07);
  color:var(--brand);
}
.nav-link.active{
  color:var(--accent);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:1.28rem;
  font-weight:900;
  letter-spacing:.01em;
  color:var(--brand-deep);
  transition:opacity .2s var(--ease);
}
.brand:hover{
  opacity:.82;
  color:var(--brand-deep);
}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  box-shadow:0 6px 14px rgba(14,107,72,.24);
}
.brand-mark svg{
  width:22px;
  height:22px;
  display:block;
}
.nav-cta{
  margin-left:10px;
  min-height:40px;
  padding:0 17px;
  background:var(--accent);
  color:#fff;
  border-radius:var(--radius-pill);
  font-size:.9rem;
}
.nav-cta:hover{
  background:#e64c12;
  color:#fff;
}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  color:var(--brand-deep);
  background:rgba(14,107,72,.08);
}
.menu-toggle svg{
  width:24px;
  height:24px;
}
.mobile-nav{
  display:none;
  position:fixed;
  left:0;
  right:0;
  top:76px;
  max-height:calc(100vh - 92px);
  overflow-y:auto;
  background:rgba(245,247,244,.98);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line);
  padding:18px 24px 28px;
}
.mobile-nav.open{
  display:block;
}
.mobile-nav .mobile-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  padding:15px 6px;
  font-weight:650;
  font-size:1.05rem;
  color:var(--ink);
  border-bottom:1px solid rgba(217,226,219,.7);
}
.mobile-nav .mobile-link.active{
  color:var(--accent);
}
.mobile-nav .mobile-link small{
  color:var(--muted);
  font-weight:400;
  font-size:.8rem;
}
.mobile-nav-cta{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
  margin-top:20px;
}

/* hero */
.hero{
  position:relative;
  color:#fff;
  background:
    linear-gradient(100deg,rgba(7,59,42,.96) 0,rgba(7,59,42,.86) 42%,rgba(7,59,42,.48) 100%),
    url("/assets/images/backpic/back-1.webp") center right/cover no-repeat;
}
.hero::after{
  content:"";
  position:absolute;
  right:-160px;
  bottom:-230px;
  width:520px;
  height:520px;
  border-radius:50%;
  border:2px solid rgba(255,255,255,.1);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);
  align-items:center;
  gap:clamp(32px,5vw,70px);
  padding-block:clamp(72px,9vw,128px);
}
.hero-copy{
  max-width:660px;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.12);
  padding:8px 15px;
  border-radius:999px;
  font-size:.86rem;
  font-weight:600;
  color:#fff;
  margin-bottom:22px;
}
.hero-kicker::before{
  content:"";
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--sun);
  box-shadow:0 0 0 4px rgba(255,216,77,.2);
}
.hero-copy h1{
  font-size:clamp(2.2rem,4vw,3.6rem);
  line-height:1.12;
  font-weight:900;
  letter-spacing:-.02em;
  color:#fff;
  text-shadow:0 4px 30px rgba(0,0,0,.12);
}
.hero-sub{
  margin-top:24px;
  font-size:1.04rem;
  line-height:1.9;
  color:rgba(255,255,255,.86);
  max-width:620px;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:34px;
}
.hero-points li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.9rem;
  color:rgba(255,255,255,.9);
}
.hero-points svg{
  width:17px;
  height:17px;
  flex:none;
  color:var(--sun);
}
.hero-visual{
  position:relative;
}
.hero-shot{
  border-radius:var(--radius-panel);
  overflow:hidden;
  box-shadow:0 30px 70px rgba(0,0,0,.28);
  transform:rotate(.7deg);
  border:1px solid rgba(255,255,255,.25);
}
.hero-shot img{
  width:100%;
  height:clamp(300px,34vw,480px);
  object-fit:cover;
  display:block;
}
.hero-float-card{
  position:absolute;
  left:-22px;
  bottom:22px;
  width:min(300px,88%);
  background:rgba(255,255,255,.95);
  color:var(--ink);
  border-radius:16px;
  box-shadow:var(--shadow-lg);
  padding:16px 18px;
  backdrop-filter:blur(8px);
}
.hero-float-card strong{
  display:block;
  font-size:.96rem;
  margin-bottom:8px;
  color:var(--brand-deep);
}
.hero-float-card ul{
  display:grid;
  gap:7px;
}
.hero-float-card li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:.86rem;
  color:var(--muted);
}
.hero-float-card li span:first-child{
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--accent);
  flex:none;
}

/* stats strip */
.stat-strip{
  position:relative;
  z-index:5;
  margin-top:-34px;
  margin-bottom:34px;
}
.stat-card{
  background:var(--surface);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  border:1px solid rgba(217,226,219,.8);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat-item{
  position:relative;
  padding:26px 28px 24px;
  min-height:130px;
  border-right:1px solid var(--line);
}
.stat-item:last-child{
  border-right:0;
}
.stat-item strong{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(2rem,3vw,2.7rem);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--brand);
  font-weight:900;
}
.stat-item span{
  display:block;
  margin-top:14px;
  font-size:.88rem;
  line-height:1.7;
  color:var(--muted);
}

/* service feature */
.card{
  background:var(--surface);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  border:1px solid rgba(217,226,219,.8);
  transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease);
}
.feature-layout{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:24px;
  align-items:stretch;
}
.feature-card-main{
  background:
    linear-gradient(145deg,rgba(7,59,42,.97),rgba(14,107,72,.88)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-radius:var(--radius-panel);
  color:#fff;
  padding:clamp(28px,4vw,52px);
  min-height:520px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  box-shadow:var(--shadow-md);
  position:relative;
  overflow:hidden;
}
.feature-card-main::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,59,42,0) 20%,rgba(7,59,42,.72) 100%);
  pointer-events:none;
}
.feature-card-main>*{
  position:relative;
  z-index:1;
}
.feature-icon{
  width:52px;
  height:52px;
  border-radius:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.14);
  color:#fff;
  border:1px solid rgba(255,255,255,.18);
  margin-bottom:24px;
}
.feature-icon svg{
  width:28px;
  height:28px;
}
.feature-card-main h3{
  font-size:clamp(1.55rem,2vw,2.1rem);
  font-weight:800;
  line-height:1.25;
  margin:14px 0 14px;
}
.feature-card-main p{
  color:rgba(255,255,255,.82);
  max-width:520px;
  margin-bottom:22px;
}
.option-list{
  display:grid;
  gap:9px;
  margin-bottom:26px;
}
.option-list li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:.95rem;
  color:rgba(255,255,255,.9);
}
.option-list li::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--sun);
  margin-top:8px;
  flex:none;
}
.feature-card-main .btn{
  align-self:flex-start;
  background:#fff;
  color:var(--brand-deep);
}
.feature-card-main .btn:hover{
  background:var(--sun);
  color:var(--brand-deep);
}
.feature-side{
  display:grid;
  grid-template-rows:1fr 1fr;
  gap:24px;
}
.feature-mini{
  padding:30px;
  border-radius:var(--radius-card);
  background:var(--surface);
  box-shadow:var(--shadow-sm);
  border:1px solid rgba(217,226,219,.7);
  display:flex;
  flex-direction:column;
  transition:box-shadow .3s var(--ease),transform .3s var(--ease);
}
.feature-mini:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.feature-mini .mini-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.feature-mini .mini-dot{
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--accent-soft);
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.feature-mini .mini-dot svg{
  width:22px;
  height:22px;
}
.feature-mini h3{
  font-size:1.18rem;
  font-weight:800;
  color:var(--brand-deep);
}
.feature-mini p{
  font-size:.93rem;
  color:var(--muted);
  margin-top:4px;
  line-height:1.8;
}
.feature-mini .text-link{
  margin-top:auto;
  padding-top:20px;
}

/* scenario */
.scenario-wrap{
  background:var(--surface);
  border-radius:var(--radius-panel);
  overflow:hidden;
  border:1px solid var(--line);
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  box-shadow:var(--shadow-sm);
}
.scenario-media{
  min-height:340px;
  height:100%;
  position:relative;
  background:var(--brand-deep);
}
.scenario-media img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.scenario-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(7,59,42,0) 42%,rgba(7,59,42,.25) 100%);
}
.scenario-body{
  padding:clamp(28px,4.5vw,60px);
}
.scenario-body h3{
  font-size:clamp(1.4rem,2.1vw,2rem);
  line-height:1.35;
  font-weight:800;
  color:var(--brand-deep);
  margin-bottom:18px;
}
.scenario-body>p{
  color:var(--muted);
  margin-bottom:30px;
  max-width:560px;
}
.scenario-steps{
  display:grid;
  gap:18px;
}
.step-row{
  display:grid;
  grid-template-columns:42px 1fr;
  gap:14px;
}
.step-num{
  width:42px;
  height:42px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-weight:800;
  font-size:1rem;
}
.step-row:nth-child(2) .step-num{
  background:var(--accent);
}
.step-row h4{
  font-size:1.04rem;
  font-weight:750;
  color:var(--ink);
  margin:3px 0 5px;
}
.step-row p{
  color:var(--muted);
  font-size:.92rem;
  line-height:1.8;
}

/* quote / social */
.quote-section{
  background:
    linear-gradient(100deg,rgba(7,59,42,.95),rgba(14,107,72,.86),rgba(7,59,42,.93)),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  color:#fff;
}
.quote-layout{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);
  gap:48px;
  align-items:center;
}
.quote-layout .eyebrow{
  background:rgba(255,255,255,.12);
  color:var(--sun);
}
.quote-layout h2{
  color:#fff;
  font-size:clamp(1.45rem,2.3vw,2.2rem);
  line-height:1.4;
  font-weight:800;
}
.quote-layout h2 span{
  color:var(--sun);
}
.quote-layout .quote-extra{
  margin-top:26px;
  color:rgba(255,255,255,.8);
  font-size:.98rem;
}
.quote-box{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-panel);
  padding:28px 24px;
  backdrop-filter:blur(6px);
}
.quote-box blockquote{
  font-size:1.02rem;
  line-height:2;
  color:rgba(255,255,255,.94);
  padding-left:18px;
  border-left:4px solid var(--sun);
}
.quote-box footer{
  margin-top:14px;
  font-size:.9rem;
  color:rgba(255,255,255,.72);
}
.value-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  padding:8px 14px;
  font-size:.85rem;
  color:#fff;
}
.pill::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--sun);
}

/* dynamic news */
.news-section{
  background:var(--bg);
}
.news-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.news-head-row .section-head{
  margin-bottom:0;
}
.post-card-list{
  display:grid;
  gap:14px;
}
.post-entry{
  background:var(--surface);
  border:1px solid rgba(217,226,219,.8);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:20px 24px;
  display:grid;
  grid-template-columns:64px minmax(0,1fr) auto;
  align-items:center;
  gap:20px;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.post-entry:hover{
  border-color:rgba(14,107,72,.4);
  box-shadow:var(--shadow-md);
}
.post-entry-lead{
  background:var(--brand-deep);
  border-color:var(--brand-deep);
  padding:30px;
  box-shadow:var(--shadow-md);
}
.post-entry-lead:hover{
  border-color:var(--brand-deep);
  box-shadow:var(--shadow-lg);
}
.post-rank{
  width:46px;
  height:46px;
  border-radius:12px;
  background:rgba(14,107,72,.1);
  color:var(--brand);
  font-family:var(--font-num);
  font-weight:900;
  font-size:1.05rem;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.is-simple{
  width:44px;
  height:44px;
  border-radius:50%;
  background:var(--accent-soft);
  color:var(--accent);
}
.post-entry-lead .post-rank{
  background:rgba(255,255,255,.15);
  color:#fff;
}
.post-title{
  font-size:1.12rem;
  font-weight:800;
  line-height:1.45;
  color:var(--brand-deep);
  transition:color .2s var(--ease);
}
.post-title a:hover{
  color:var(--accent);
}
.post-entry-lead .post-title{
  color:#fff;
  font-size:clamp(1.25rem,1.6vw,1.65rem);
}
.post-entry-lead .post-title a:hover{
  color:var(--sun);
}
.post-excerpt{
  margin-top:8px;
  color:var(--muted);
  font-size:.92rem;
  max-width:760px;
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-entry-lead .post-excerpt{
  color:rgba(255,255,255,.75);
}
.post-foot{
  display:flex;
  align-items:center;
  gap:14px;
  color:var(--muted);
  font-size:.85rem;
}
.post-foot a{
  font-weight:700;
  color:var(--brand);
}
.post-entry-lead .post-foot a{
  color:var(--sun);
}
.post-foot time{
  white-space:nowrap;
}
.post-tag{
  display:inline-block;
  background:var(--accent-soft);
  color:var(--accent);
  border-radius:4px;
  font-size:.78rem;
  font-weight:700;
  padding:2px 7px;
}
.post-entry-lead .post-tag{
  background:rgba(255,255,255,.15);
  color:#fff;
}
.news-empty{
  background:var(--surface);
  border-radius:var(--radius-card);
  border:1px dashed var(--line);
  padding:52px 20px;
  text-align:center;
  color:var(--muted);
}
.news-empty .empty-symbol{
  width:58px;
  height:58px;
  border-radius:18px;
  background:var(--accent-soft);
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
}
.news-empty svg{
  width:30px;
  height:30px;
}
.news-empty strong{
  display:block;
  color:var(--ink);
  font-size:1.08rem;
  margin-bottom:6px;
}
.news-empty p{
  font-size:.94rem;
}
.news-empty a{
  color:var(--brand);
  font-weight:700;
}
.news-foot-link{
  display:flex;
  justify-content:center;
  margin-top:34px;
}

/* FAQ */
.faq-wrap{
  max-width:880px;
  margin-inline:auto;
}
.faq-list{
  display:grid;
  gap:16px;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:box-shadow .25s var(--ease);
}
.faq-item[open]{
  box-shadow:var(--shadow-md);
  border-color:rgba(14,107,72,.35);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 24px;
  cursor:pointer;
  font-weight:700;
  font-size:1.02rem;
  color:var(--ink);
  list-style:none;
  transition:background .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{
  display:none;
}
.faq-item summary:hover{
  background:rgba(14,107,72,.04);
}
.faq-item[open] summary{
  color:var(--brand);
}
.faq-icon{
  width:28px;
  height:28px;
  flex:none;
  border-radius:50%;
  background:rgba(14,107,72,.1);
  position:relative;
  color:var(--brand);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:11px;
  height:2px;
  background:currentColor;
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::after{
  transform:translate(-50%,-50%) rotate(90deg);
}
.faq-item[open] .faq-icon::after{
  transform:translate(-50%,-50%) rotate(0deg);
}
.faq-body{
  padding:0 24px 24px;
  color:var(--muted);
  line-height:1.9;
  font-size:.96rem;
  border-top:1px solid rgba(217,226,219,.5);
  margin:0 0 0;
}
.faq-body div{
  padding-top:18px;
}

/* final CTA */
.cta-section{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(110deg,rgba(7,59,42,.95),rgba(14,107,72,.92)),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  color:#fff;
}
.cta-section::before{
  content:"";
  position:absolute;
  width:300px;
  height:300px;
  border-radius:50%;
  border:50px solid rgba(255,255,255,.04);
  top:-90px;
  right:-80px;
}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) auto;
  gap:40px;
  align-items:center;
  position:relative;
}
.cta-grid h2{
  font-size:clamp(1.6rem,2.6vw,2.6rem);
  line-height:1.3;
  font-weight:900;
  color:#fff;
  letter-spacing:-.01em;
}
.cta-grid p{
  margin-top:16px;
  color:rgba(255,255,255,.84);
  max-width:660px;
}
.cta-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.cta-links .btn{
  min-height:48px;
}
.cta-arrow{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
  min-width:280px;
}
.cta-card-link{
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-card);
  padding:15px 18px;
  color:#fff;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-weight:700;
  transition:background .25s var(--ease),transform .2s var(--ease);
}
.cta-card-link:hover{
  background:rgba(255,255,255,.22);
  transform:translateX(5px);
  color:#fff;
}
.cta-card-link span{
  font-size:.87rem;
  font-weight:500;
  color:rgba(255,255,255,.7);
}
.cta-card-link svg{
  width:18px;
  height:18px;
}

/* footer */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
  padding:64px 0 38px;
}
.footer-brand .brand{
  color:#fff;
  font-size:1.25rem;
  margin-bottom:14px;
}
.footer-brand p{
  max-width:330px;
  font-size:.92rem;
  line-height:1.9;
}
.footer-head{
  font-size:1rem;
  font-weight:700;
  color:#fff;
  margin-bottom:20px;
  letter-spacing:.02em;
}
.footer-list{
  display:grid;
  gap:11px;
}
.footer-list a{
  font-size:.92rem;
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-list a::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--brand-bright);
  transform:scale(1);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.footer-list a:hover{
  color:#fff;
  transform:translateX(3px);
}
.footer-list a:hover::before{
  background:var(--sun);
  transform:scale(1.5);
}
.footer-notes{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  font-size:.84rem;
  color:rgba(255,255,255,.55);
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.footer-notes a{
  color:rgba(255,255,255,.75);
}
.footer-notes a:hover{
  color:var(--sun);
}

/* floating bar */
.float-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:90;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 26px rgba(7,59,42,.08);
  padding:12px 0;
}
.float-inner{
  display:flex;
  align-items:center;
  gap:16px;
  justify-content:space-between;
}
.float-text{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:.95rem;
  font-weight:600;
  color:var(--ink);
}
.float-text svg{
  width:23px;
  height:23px;
  color:var(--accent);
}
.float-text small{
  display:block;
  font-size:.8rem;
  font-weight:400;
  color:var(--muted);
}
.float-action{
  display:flex;
  align-items:center;
  gap:10px;
}
.float-close{
  width:44px;
  height:44px;
  border-radius:8px;
  color:var(--muted);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.float-close:hover{
  background:rgba(7,59,42,.08);
  color:var(--ink);
}
body.has-float .site-footer{
  margin-bottom:0;
}
@media (min-width:1440px){
  .container, .header-inner{
    width:1280px;
  }
}
@media (max-width:1180px){
  .nav-link{
    padding:0 9px;
    font-size:.9rem;
  }
  .brand{
    font-size:1.16rem;
  }
  .header-inner{
    column-gap:12px;
  }
}
@media (max-width:1024px){
  .header-inner{
    height:72px;
    grid-template-columns:1fr auto 1fr;
  }
  .nav-left,.nav-right{
    display:none;
  }
  .menu-toggle{
    display:inline-flex;
    justify-self:end;
  }
  .mobile-nav{
    top:72px;
  }
  .stat-card{
    grid-template-columns:repeat(2,1fr);
  }
  .stat-item:nth-child(2){
    border-right:0;
  }
  .stat-item:nth-child(-n+2){
    border-bottom:1px solid var(--line);
  }
  .feature-layout,.quote-layout,.cta-grid,.scenario-wrap{
    grid-template-columns:1fr;
  }
  .feature-card-main{
    min-height:430px;
  }
  .feature-side{
    grid-template-columns:1fr 1fr;
    grid-template-rows:none;
  }
  .scenario-media{
    min-height:310px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
  .cta-arrow{
    min-width:0;
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:768px){
  .container,.header-inner{
    width:min(100% - 32px,1280px);
  }
  .header-inner{
    grid-template-columns:36px 1fr 44px;
  }
  .brand{
    justify-content:center;
    font-size:1.08rem;
  }
  .brand-mark{
    width:30px;
    height:30px;
    border-radius:9px;
  }
  .hero-inner{
    grid-template-columns:1fr;
    padding-block:54px 48px;
    gap:44px;
  }
  .hero-copy h1{
    letter-spacing:-.01em;
  }
  .hero-visual{
    max-width:520px;
  }
  .hero-float-card{
    left:0;
    bottom:-22px;
  }
  .stat-strip{
    margin-top:-14px;
  }
  .stat-card{
    grid-template-columns:1fr 1fr;
  }
  .feature-layout{
    gap:18px;
  }
  .feature-side{
    grid-template-columns:1fr;
    gap:18px;
  }
  .feature-card-main{
    min-height:380px;
  }
  .scenario-wrap{
    gap:0;
  }
  .section-head h2{
    letter-spacing:-.01em;
  }
  .post-entry{
    grid-template-columns:48px 1fr;
    padding:18px 18px;
    gap:14px;
  }
  .post-foot{
    margin-left:62px;
    grid-column:1 / -1;
    justify-content:space-between;
  }
  .post-entry-lead{
    padding:22px;
  }
  .post-entry-lead .post-foot{
    margin-left:0;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
    padding-top:52px;
  }
  .cta-arrow{
    grid-template-columns:1fr;
  }
  .float-inner{
    flex-wrap:wrap;
    gap:8px;
  }
  .float-text small{
    display:inline;
    margin-left:6px;
  }
  .float-action .btn{
    min-height:42px;
    padding:0 14px;
    font-size:.88rem;
  }
}
@media (max-width:540px){
  .container,.header-inner{
    width:min(100% - 22px,1280px);
  }
  .hero-copy h1{
    font-size:1.95rem;
  }
  .hero-sub{
    font-size:.95rem;
  }
  .hero-btns .btn{
    width:100%;
  }
  .stat-card{
    grid-template-columns:1fr;
  }
  .stat-item{
    border-right:0;
    border-bottom:1px solid var(--line);
  }
  .stat-item:last-child{
    border-bottom:0;
  }
  .stat-item{
    min-height:auto;
  }
  .news-head-row{
    display:block;
  }
  .news-head-row .text-link{
    margin-top:14px;
  }
  .post-entry{
    display:block;
  }
  .post-rank{
    margin-bottom:14px;
  }
  .post-excerpt{
    -webkit-line-clamp:3;
  }
  .footer-notes{
    align-items:flex-start;
    flex-direction:column;
  }
}

/* roulang page: category1 */
:root {
  --brand-deep: #073B2A;
  --brand: #0E6B48;
  --brand-bright: #149A61;
  --accent: #F45B22;
  --accent-soft: #FFE3D6;
  --sun: #FFD84D;
  --bg: #F5F7F4;
  --surface: #FFFFFF;
  --ink: #16211C;
  --muted: #5F6E64;
  --line: #D9E2DB;
  --danger: #D32F2F;
  --success: #2E7D32;
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 20px;
  --shadow-card: 0 2px 10px rgba(7, 59, 42, 0.06);
  --shadow-hover: 0 10px 30px rgba(7, 59, 42, 0.1);
  --shadow-pop: 0 20px 45px rgba(7, 59, 42, 0.18);
  --font-main: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

ul,
ol {
  list-style: none;
}

.container {
  width: min(100% - 48px, 1280px);
  margin-inline: auto;
}

.section {
  padding-block: 84px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand);
  background: rgba(14, 107, 72, 0.09);
  padding: 6px 14px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.section-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.section-title {
  font-size: clamp(1.5rem, 2.4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 860px;
}

.section-lead {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
  max-width: 860px;
  margin-top: 18px;
}

/* Header Navigation */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(245, 247, 244, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 18px rgba(7, 59, 42, 0.05);
}

.nav-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  gap: 10px;
}

.nav-area {
  display: flex;
  align-items: center;
}

.nav-area.is-right {
  justify-content: flex-end;
}

.nav-area .desktop-nav {
  display: flex;
  align-items: center;
  gap: 3px;
}

.nav-area.is-left .desktop-nav {
  justify-content: flex-end;
  padding-right: 28px;
}

.nav-area.is-right .desktop-nav {
  justify-content: flex-start;
  padding-left: 28px;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 9px 12px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  border-radius: var(--radius-s);
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 999px;
  transform: translateX(-50%);
  transition: width 0.2s ease;
}

.nav-link:hover {
  color: var(--brand);
  background: rgba(14, 107, 72, 0.05);
}

.nav-link.active {
  color: var(--brand);
  font-weight: 800;
}

.nav-link.active::after {
  width: 22px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 20px;
  margin-left: 10px;
  border-radius: 999px;
  background: var(--brand);
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 700;
  box-shadow: 0 6px 18px rgba(14, 107, 72, 0.22);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
  background: var(--brand-bright);
  box-shadow: 0 8px 24px rgba(14, 107, 72, 0.28);
  transform: translateY(-1px);
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  min-width: 108px;
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  color: var(--brand-deep);
  line-height: 1.1;
  text-align: center;
}

.brand-mark {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--accent);
  margin-bottom: 4px;
}

.brand-sub {
  font-size: 0.765rem;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: 0.28em;
  margin-top: 4px;
  transform: translateX(0.16em);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-panel {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 18px 24px 26px;
  box-shadow: var(--shadow-pop);
}

.mobile-panel .mobile-nav {
  display: flex;
  flex-direction: column;
}

.mobile-panel .mobile-nav-link {
  display: block;
  padding: 13px 0;
  font-weight: 700;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.mobile-panel .mobile-nav-link.active {
  color: var(--accent);
}

.mobile-panel .mobile-nav-cta {
  display: flex;
  justify-content: center;
  margin-top: 22px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-s);
  border: 0;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.22s ease, background 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn-accent {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(244, 91, 34, 0.26);
}

.btn-accent:hover {
  background: #e04e17;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(244, 91, 34, 0.3);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.02);
}

.btn-ghost:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.btn-brand {
  background: var(--brand);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(14, 107, 72, 0.25);
}

.btn-brand:hover {
  background: var(--brand-bright);
  transform: translateY(-2px);
}

/* Hero */
.page-hero {
  position: relative;
  color: #ffffff;
  background: linear-gradient(120deg, rgba(7, 59, 42, 0.96), rgba(14, 107, 72, 0.78)), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(400px, 1.1fr);
  align-items: center;
  gap: 76px;
  padding-top: 88px;
  padding-bottom: 104px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--sun);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.page-hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin: 26px 0 24px;
  max-width: 640px;
}

.page-hero h1 .hl {
  color: var(--sun);
}

.hero-lead {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.88);
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 26px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-badges span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 6px 13px;
  border-radius: 999px;
}

.hero-badges span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sun);
}

.hero-visual {
  position: relative;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-pop);
}

.hero-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, transparent 52%, rgba(7, 59, 42, 0.52));
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.hero-image-caption {
  position: absolute;
  left: 22px;
  bottom: 20px;
  z-index: 1;
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
}

.hero-image-caption strong {
  display: block;
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 2px;
}

.hero-float-card {
  position: absolute;
  right: -18px;
  top: 38px;
  background: rgba(255, 255, 255, 0.94);
  border-radius: var(--radius-m);
  padding: 18px 20px;
  color: var(--ink);
  width: 188px;
  box-shadow: var(--shadow-pop);
  backdrop-filter: blur(10px);
}

.hero-float-card::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 0;
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 0 0 4px 4px;
}

.hero-float-card strong {
  display: block;
  font-size: 1.28rem;
  font-weight: 900;
  color: var(--brand);
  line-height: 1.2;
}

.hero-float-card span {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.5;
}

.quick-strip {
  position: relative;
  z-index: 2;
  margin-top: -42px;
  padding-bottom: 32px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-radius: var(--radius-l);
  background: var(--surface);
  box-shadow: var(--shadow-hover);
  overflow: hidden;
}

.quick-item {
  padding: 26px 28px;
  border-left: 1px solid var(--line);
}

.quick-item:first-child {
  border-left: 0;
}

.quick-item strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--ink);
  margin-bottom: 4px;
}

.quick-item span {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

/* Split zone */
.split-section {
  background: var(--bg);
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
  gap: 74px;
  align-items: center;
}

.split-image {
  position: relative;
}

.split-image-card {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.split-image-card img {
  width: 100%;
  height: 540px;
  object-fit: cover;
}

.split-point-list {
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.split-point {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 18px;
  background: var(--surface);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.split-point:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.point-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 900;
  margin-bottom: 10px;
}

.split-point strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 5px;
}

.split-point p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

/* Module scope dark zone */
.module-section {
  background: var(--brand-deep);
  color: #ffffff;
  border-radius: 0;
}

.module-section .section-title,
.module-section .section-lead {
  color: #ffffff;
}

.module-section .section-tag {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
}

.module-section .section-tag::before {
  background: var(--sun);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 52px;
}

.module-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  border-radius: var(--radius-m);
  padding: 24px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.module-item:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

.module-icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--brand-bright);
  color: #ffffff;
}

.module-item h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 5px;
}

.module-item p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* Scenario section */
.scenario-section {
  background: var(--surface);
}

.scenario-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.scenario-card {
  border-radius: var(--radius-l);
  background: var(--surface);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.scenario-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.scenario-cover {
  position: relative;
  min-height: 220px;
  background: #e8eee9;
}

.scenario-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scenario-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,59,42,0.03), rgba(7,59,42,0.42));
}

.scenario-lable {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 2;
  background: rgba(255,255,255,0.94);
  color: var(--ink);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.scenario-body {
  padding: 26px 26px 30px;
}

.scenario-body h3 {
  font-size: 1.18rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.scenario-body p {
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

/* Process */
.process-section {
  background: var(--bg);
  border-top: 1px solid var(--line);
}

.process-steps {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: processCounter;
}

.process-step {
  counter-increment: processCounter;
  border-radius: var(--radius-m);
  background: var(--surface);
  padding: 30px 24px;
  border-top: 4px solid var(--brand);
  box-shadow: var(--shadow-card);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.process-step::before {
  content: "0" counter(processCounter);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: var(--accent);
  background: var(--accent-soft);
  width: 42px;
  height: 34px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.process-step h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.7;
}

/* FAQ */
.faq-section {
  background: var(--surface);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 72px;
  margin-top: 50px;
}

.faq-guide {
  border-radius: var(--radius-l);
  background: linear-gradient(135deg, var(--brand-deep), var(--brand));
  color: #ffffff;
  padding: 36px 32px;
  box-shadow: var(--shadow-hover);
}

.faq-guide h3 {
  font-size: 1.7rem;
  font-weight: 900;
  margin-bottom: 16px;
}

.faq-guide p {
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(255,255,255,0.86);
  margin-bottom: 26px;
}

.faq-guide a.btn {
  background: var(--accent);
  color: #fff;
}

.faq-list {
  background: var(--surface);
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item:last-child {
  border-bottom: 0;
}

.faq-question {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 21px 22px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--ink);
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease, background 0.2s ease;
}

.faq-question:hover {
  background: rgba(14, 107, 72, 0.04);
  color: var(--brand);
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--brand);
  font-size: 1.5rem;
  font-weight: 400;
  transition: transform 0.2s ease, color 0.2s ease;
}

.faq-item.is-open .faq-question {
  color: var(--brand);
}

.faq-item.is-open .faq-question::after {
  content: "−";
  color: var(--accent);
}

.faq-answer {
  display: none;
  padding: 0 22px 24px;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* Contact CTA */
.contact-zone {
  position: relative;
  color: #ffffff;
  background: linear-gradient(110deg, rgba(7, 59, 42, 0.95), rgba(14, 107, 72, 0.84)), url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
  border-radius: 0;
  padding: 76px 0;
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 90px;
  align-items: center;
}

.contact-copy h2 {
  color: #ffffff;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.9;
}

.contact-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 30px;
  padding: 16px 18px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-m);
  color: rgba(255,255,255,0.88);
  font-size: 0.9375rem;
}

.contact-tips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.contact-tips li {
  font-size: 0.875rem;
  background: rgba(255,255,255,0.14);
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
}

.contact-card {
  background: #ffffff;
  color: var(--ink);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-pop);
  padding: 34px 32px;
}

.contact-card h3 {
  font-size: 1.3rem;
  font-weight: 900;
}

.contact-card > p {
  color: var(--muted);
  font-size: 0.9375rem;
  margin-bottom: 24px;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--ink);
}

.form-control {
  appearance: none;
  border: 1px solid var(--line);
  background: #f7f9f7;
  border-radius: 10px;
  width: 100%;
  padding: 12px 14px;
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.form-control::placeholder {
  color: #99a49d;
}

.form-control:focus {
  outline: none;
  background: #fff;
  border: 2px solid var(--brand);
  box-shadow: 0 0 0 4px rgba(14, 107, 72, 0.14);
  padding: 11px 13px;
}

textarea.form-control {
  min-height: 86px;
  resize: vertical;
}

.form-submit-row {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 15px;
  margin-top: 4px;
}

.form-tip {
  color: var(--muted);
  font-size: 0.8125rem;
}

.form-error {
  grid-column: 1 / -1;
  color: var(--danger);
  font-size: 0.875rem;
  display: none;
}

/* Footer */
.site-footer {
  background: var(--brand-deep);
  color: rgba(255, 255, 255, 0.78);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 1.2fr;
  gap: 70px;
  padding: 68px 0 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 900;
  font-size: 1.5rem;
  margin-bottom: 14px;
}

.footer-brand i {
  width: 18px;
  height: 18px;
  display: inline-block;
  background: var(--accent);
  border-radius: 5px;
}

.footer-desc {
  max-width: 360px;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.62);
  line-height: 1.85;
}

.footer-hd {
  display: block;
  color: #ffffff;
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 18px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 0.9375rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-nav a::before {
  content: "›";
  color: var(--sun);
  font-weight: 700;
}

.footer-nav a:hover {
  color: #ffffff;
  transform: translateX(2px);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255,255,255,0.68);
  font-size: 0.9375rem;
  margin-bottom: 11px;
}

.footer-contact-item strong {
  display: block;
  color: rgba(255,255,255,0.94);
  font-weight: 700;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
  color: rgba(255,255,255,0.5);
  font-size: 0.875rem;
  flex-wrap: wrap;
}

.footer-bottom a {
  color: rgba(255,255,255,0.6);
}

.footer-bottom a:hover {
  color: #fff;
}

/* Responsive */
@media (max-width: 1100px) {
  .nav-area .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .mobile-panel.is-open {
    display: block;
  }

  .nav-area.is-left {
    display: none;
  }

  .nav-area.is-right {
    justify-content: flex-end;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-bottom: 78px;
  }

  .hero-image img {
    height: 340px;
  }

  .quick-grid {
    grid-template-columns: 1fr;
  }

  .quick-item {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .quick-item:first-child {
    border-top: 0;
  }

  .split-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .split-image-card img {
    height: 430px;
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .faq-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .section {
    padding-block: 56px;
  }

  .hero-grid {
    padding-top: 64px;
  }

  .page-hero h1 {
    font-size: clamp(2rem, 6vw, 2.8rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .hero-float-card {
    display: none;
  }

  .hero-image img {
    height: 240px;
  }

  .split-image-card img {
    height: 320px;
  }

  .split-point-list {
    grid-template-columns: 1fr 1fr;
  }

  .module-grid,
  .scenario-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .scenario-cover {
    min-height: 200px;
  }

  .faq-guide {
    padding: 30px 22px;
  }

  .contact-zone {
    padding: 56px 0;
  }

  .contact-card {
    padding: 28px 20px;
  }

  .form-submit-row {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 48px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 32px, 1280px);
  }

  .split-point-list {
    grid-template-columns: 1fr;
  }

  .process-steps {
    gap: 14px;
  }

  .quick-item {
    padding: 20px;
  }

  .footer-contact-item {
    word-break: break-word;
  }
}

/* roulang page: article */
:root {
  --brand-deep: #073B2A;
  --brand: #0E6B48;
  --brand-bright: #149A61;
  --accent: #F45B22;
  --accent-soft: #FFE3D6;
  --sun: #FFD84D;
  --bg: #F5F7F4;
  --surface: #FFFFFF;
  --ink: #16211C;
  --muted: #5F6E64;
  --line: #D9E2DB;
  --danger: #D32F2F;
  --success: #2E7D32;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(7, 59, 42, 0.06);
  --shadow-md: 0 10px 30px rgba(7, 59, 42, 0.1);
  --shadow-lg: 0 20px 45px rgba(7, 59, 42, 0.18);
  --container: 1280px;
  --font-main: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.has-convert-bar {
  padding-bottom: 76px;
}
h1, h2, h3, h4, p, figure, dl, dd {
  margin-top: 0;
}
h1, h2, h3, h4 {
  line-height: 1.3;
  text-wrap: balance;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
}
button {
  cursor: pointer;
}
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(20, 154, 97, 0.4);
  outline-offset: 2px;
}
.container {
  width: min(100% - 48px, var(--container));
  margin: 0 auto;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--brand-deep);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px;
  border: 0;
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.2;
  color: #fff;
  background: var(--brand);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  background: var(--brand-bright);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-primary {
  background: var(--brand);
}
.btn-ghost {
  background: transparent;
  color: var(--brand);
  box-shadow: inset 0 0 0 1.5px var(--brand);
}
.btn-ghost:hover {
  background: rgba(14, 107, 72, 0.08);
  box-shadow: inset 0 0 0 1.5px var(--brand-bright);
  color: var(--brand-bright);
}
.btn-accent {
  background: var(--accent);
}
.btn-accent:hover {
  background: #d94611;
}
.btn-light {
  background: #fff;
  color: var(--brand-deep);
}
.btn-light:hover {
  background: #f1f4f0;
  color: var(--brand-deep);
}
.btn-small {
  padding: 7px 16px;
  min-height: 40px;
  font-size: 0.9rem;
  border-radius: 8px;
}

/* Site header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(217, 226, 219, 0.8);
  transition: box-shadow 0.2s ease;
}
.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  min-height: 74px;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  justify-self: center;
  padding: 8px 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 10px;
  background: var(--brand-deep);
  color: #fff;
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0;
}
.brand-name {
  font-size: 1.18rem;
  font-weight: 900;
  color: var(--brand-deep);
  letter-spacing: 0.2px;
  white-space: nowrap;
}
.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-left {
  justify-self: start;
}
.nav-right {
  justify-self: end;
  justify-content: flex-end;
  gap: 6px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.94rem;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-link:hover {
  background: rgba(14, 107, 72, 0.08);
  color: var(--brand);
}
.nav-link.active {
  background: rgba(244, 91, 34, 0.1);
  color: var(--accent);
  font-weight: 800;
}
.nav-cta {
  margin-left: 6px;
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-left: 10px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--brand-deep);
  border-radius: 10px;
}
.nav-toggle:hover {
  background: rgba(7, 59, 42, 0.08);
}
.nav-toggle .icon-bar {
  position: relative;
  width: 20px;
  height: 2px;
  background: var(--brand-deep);
  border-radius: 2px;
  transition: background 0.2s ease;
}
.nav-toggle .icon-bar::before,
.nav-toggle .icon-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--brand-deep);
  border-radius: 2px;
  transition: transform 0.25s ease, top 0.25s ease;
}
.nav-toggle .icon-bar::before {
  top: -7px;
}
.nav-toggle .icon-bar::after {
  top: 7px;
}
.nav-toggle.is-open .icon-bar {
  background: transparent;
}
.nav-toggle.is-open .icon-bar::before {
  top: 0;
  transform: rotate(45deg);
}
.nav-toggle.is-open .icon-bar::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 55;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 104px 28px 40px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.24s ease, transform 0.24s ease, visibility 0.24s ease;
  overflow-y: auto;
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mobile-menu a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--brand-deep);
  font-size: 1.08rem;
  font-weight: 800;
}
.mobile-menu a:hover {
  background: rgba(14, 107, 72, 0.07);
}
.mobile-menu .mobile-cta {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.mobile-menu .btn {
  width: 100%;
}

/* Breadcrumb */
.breadcrumb-wrap {
  padding: 26px 0 0;
}
.crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.88rem;
}
.crumb-list a {
  color: var(--brand);
  font-weight: 600;
}
.crumb-list a:hover {
  color: var(--brand-bright);
}
.crumb-sep {
  color: #A8B5AC;
}
.crumb-current {
  color: var(--muted);
}

/* Article page */
.main-shell {
  padding: 0 0 72px;
}
.article-wrap {
  margin: 34px 0 0;
}
.article-panel {
  background: var(--surface);
  border: 1px solid rgba(217, 226, 219, 0.7);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.article-heading-band {
  position: relative;
  padding: clamp(28px, 5vw, 58px) clamp(22px, 5vw, 60px) 40px;
  background: linear-gradient(135deg, var(--brand-deep), var(--brand));
  color: #fff;
  overflow: hidden;
}
.article-heading-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
  mix-blend-mode: overlay;
}
.article-heading-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}
.article-kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.85rem;
}
.kicker-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sun);
}
.article-title {
  margin: 0 0 18px;
  font-size: clamp(1.7rem, 3.2vw, 2.7rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.3px;
}
.article-heading-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.9rem;
}
.meta-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.meta-inline .meta-prefix {
  color: rgba(255, 255, 255, 0.66);
}
.article-cat-label {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
}
.article-body-panel {
  padding: clamp(24px, 5vw, 56px) clamp(18px, 5vw, 48px) 40px;
}
.article-content {
  max-width: 780px;
  margin: 0 auto 44px;
  color: #24322A;
  font-size: 1.03rem;
  line-height: 1.9;
}
.article-content p {
  margin: 0 0 1.3em;
}
.article-content h2 {
  margin: 1.8em 0 0.7em;
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  font-weight: 800;
  color: var(--brand-deep);
}
.article-content h3 {
  margin: 1.7em 0 0.55em;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--brand-deep);
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.4em;
  padding-left: 1.4em;
}
.article-content li {
  margin: 0.45em 0;
}
.article-content blockquote {
  margin: 1.6em 0;
  padding: 4px 0 4px 22px;
  border-left: 4px solid var(--brand);
  color: #47564E;
  background: rgba(14, 107, 72, 0.04);
  border-radius: 0 8px 8px 0;
}
.article-content blockquote p {
  margin-bottom: 0;
}
.article-content img {
  margin: 1.6em 0;
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
.article-content figure {
  margin: 1.7em 0;
}
.article-content figure figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}
.article-content a {
  color: var(--brand);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(14, 107, 72, 0.25);
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: var(--brand-bright);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  font-size: 0.93rem;
}
.article-content th,
.article-content td {
  border: 1px solid var(--line);
  padding: 12px 14px;
  text-align: left;
}
.article-content th {
  background: rgba(14, 107, 72, 0.07);
  color: var(--brand-deep);
  font-weight: 800;
}
.article-content pre {
  margin: 1.6em 0;
  padding: 18px;
  border-radius: 12px;
  background: var(--brand-deep);
  color: #EAF4EE;
  overflow-x: auto;
  font-size: 0.92rem;
}
.article-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

/* Article footer */
.article-footer-zone {
  max-width: 780px;
  margin: 0 auto;
}
.article-end-line {
  margin: 0 0 20px;
  height: 1px;
  background: var(--line);
}
.tag-share-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 22px;
  margin-bottom: 22px;
}
.article-tag-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.tag-list-label {
  color: var(--muted);
  font-size: 0.85rem;
  margin-right: 4px;
}
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--bg);
  color: var(--brand-deep);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  font-weight: 700;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
a.chip:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.share-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--brand-deep);
  font-weight: 700;
  font-size: 0.87rem;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.share-btn:hover {
  border-color: var(--brand);
  background: rgba(14, 107, 72, 0.06);
  color: var(--brand);
}
.article-guide-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.guide-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border-radius: 14px;
  background: var(--bg);
  border: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.guide-card.next {
  align-items: flex-end;
  text-align: right;
}
.guide-card:hover {
  background: #fff;
  border-color: var(--line);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.guide-label {
  color: var(--muted);
  font-size: 0.8rem;
}
.guide-title {
  font-weight: 800;
  color: var(--brand-deep);
}
.guide-card .btn {
  min-height: 36px;
  padding: 5px 12px;
  font-size: 0.82rem;
  margin-top: 8px;
}

/* Related topics */
.related-section {
  padding: 64px 0 38px;
}
.section-heading {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.section-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  font-weight: 900;
  color: var(--brand-deep);
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.topic-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid rgba(217, 226, 219, 0.7);
  box-shadow: var(--shadow-sm);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}
.topic-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(20, 154, 97, 0.28);
}
.topic-card-img {
  width: 100%;
  height: 188px;
  object-fit: cover;
  background: var(--bg);
}
.topic-card-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 10px;
  padding: 20px;
}
.topic-tag {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #B13A0B;
  font-size: 0.8rem;
  font-weight: 800;
}
.topic-card-content h3 {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 900;
  color: var(--brand-deep);
  line-height: 1.45;
}
.topic-card-content p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.topic-card-link {
  margin-top: auto;
  align-self: flex-start;
  color: var(--brand);
  font-size: 0.87rem;
  font-weight: 800;
  transition: color 0.2s ease;
}
.topic-card:hover .topic-card-link {
  color: var(--accent);
}

/* CTA band */
.cta-band {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
  background-image:
    linear-gradient(100deg, rgba(7, 59, 42, 0.97) 12%, rgba(14, 107, 72, 0.84) 62%, rgba(149, 74, 40, 0.34)),
    url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.cta-inner {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  align-items: center;
  gap: 30px 48px;
}
.cta-kicker {
  margin: 0 0 10px;
  color: var(--sun);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.cta-band h2 {
  margin: 0 0 16px;
  max-width: 720px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  line-height: 1.24;
}
.cta-band p {
  margin-bottom: 0;
  max-width: 700px;
  color: rgba(255, 255, 255, 0.84);
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

/* Missing content */
.missing-section {
  padding: 90px 0 110px;
  display: flex;
  justify-content: center;
}
.missing-panel {
  width: min(100% - 40px, 680px);
  padding: 48px 40px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  text-align: center;
}
.missing-icon {
  display: inline-grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin-bottom: 18px;
  border-radius: 18px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.6rem;
  font-weight: 900;
}
.missing-panel h1 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  color: var(--brand-deep);
}
.missing-panel p {
  margin-bottom: 18px;
  color: var(--muted);
}
.missing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* Footer */
.site-footer {
  background: var(--brand-deep);
  color: rgba(255, 255, 255, 0.82);
}
.footer-main {
  padding: 62px 0 46px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 38px;
}
.footer-brand-block {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.22rem;
  font-weight: 900;
}
.footer-logo {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-weight: 900;
  font-size: 1rem;
}
.footer-desc {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.9rem;
  max-width: 320px;
  margin: 0;
}
.footer-heading {
  margin: 0 0 18px;
  color: #fff;
  font-size: 0.98rem;
  font-weight: 800;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-links a,
.footer-info-item {
  display: inline-flex;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 5px;
}
.footer-info-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-info-label {
  display: block;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
  margin-bottom: 2px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 20px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.84rem;
}

/* Convert bar */
.convert-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  min-height: 68px;
  padding: 10px 0;
  background: rgba(7, 59, 42, 0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  box-shadow: 0 -8px 30px rgba(7, 59, 42, 0.18);
}
.convert-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.convert-message {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.88);
}
.convert-message strong {
  color: var(--sun);
  font-weight: 800;
}
.convert-action {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}
.convert-close {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-left: 4px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.3rem;
  line-height: 1;
  transition: background 0.2s ease, color 0.2s ease;
}
.convert-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* Responsive */
@media (max-width: 1024px) {
  .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .topic-card:last-child {
    grid-column: span 2;
  }
  .cta-inner {
    grid-template-columns: 1fr;
  }
  .cta-actions {
    justify-content: flex-start;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 820px) {
  .nav-left,
  .nav-right .nav-link,
  .nav-right .nav-cta {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-inner {
    grid-template-columns: 1fr auto 1fr;
    gap: 4px;
  }
  .nav-right {
    display: flex;
    justify-content: flex-end;
  }
  .mobile-menu {
    display: flex;
  }
}
@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, var(--container));
  }
  .header-inner {
    min-height: 66px;
  }
  .brand-name {
    font-size: 1.05rem;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
  }
  .article-wrap {
    margin-top: 18px;
  }
  .article-heading-band {
    padding: 28px 18px 28px;
  }
  .article-body-panel {
    padding: 24px 16px 32px;
  }
  .article-content {
    font-size: 1rem;
    line-height: 1.85;
  }
  .article-guide-row {
    grid-template-columns: 1fr;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .topic-card:last-child {
    grid-column: auto;
  }
  .related-section {
    padding: 50px 0 30px;
  }
  .cta-band {
    padding: 52px 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-main {
    padding: 46px 0 34px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .convert-inner {
    align-items: center;
    gap: 10px;
  }
  .convert-message {
    font-size: 0.84rem;
  }
  .convert-action .btn {
    padding: 6px 10px;
    min-height: 36px;
    font-size: 0.82rem;
  }
  .missing-section {
    padding: 56px 0 86px;
  }
  .missing-panel {
    padding: 34px 20px;
  }
  .missing-actions {
    flex-direction: column;
  }
  .tag-share-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: category2 */
:root {
  --brand-deep: #073B2A;
  --brand: #0E6B48;
  --brand-bright: #149A61;
  --accent: #F45B22;
  --accent-soft: #FFE3D6;
  --sun: #FFD84D;
  --bg: #F5F7F4;
  --surface: #FFFFFF;
  --ink: #16211C;
  --muted: #5F6E64;
  --line: #D9E2DB;
  --danger: #D32F2F;
  --success: #2E7D32;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --space-section: clamp(4rem, 7vw, 6.5rem);
  --shadow-card: 0 2px 10px rgba(7, 59, 42, 0.06);
  --shadow-hover: 0 10px 30px rgba(7, 59, 42, 0.1);
  --shadow-pop: 0 20px 45px rgba(7, 59, 42, 0.18);
  --font-sans: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: 1rem;
}

button {
  cursor: pointer;
  border: 0;
  background: none;
}

ul,
ol {
  list-style: none;
}

[hidden] {
  display: none !important;
}

.container {
  width: min(1280px, calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: var(--space-section) 0;
}

.section-tight {
  padding: 3.25rem 0;
}

.section-head {
  max-width: 820px;
  margin-bottom: 2.4rem;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--brand);
  margin-bottom: 0.8rem;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--brand);
}

.eyebrow.light {
  color: rgba(255, 255, 255, 0.78);
}

.eyebrow.light::before {
  background: var(--sun);
}

h1,
h2,
h3,
h4 {
  line-height: 1.22;
  color: var(--brand-deep);
  font-weight: 850;
}

h1 {
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.55rem, 2.4vw, 2.3rem);
  font-weight: 850;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.1rem;
  font-weight: 750;
}

p {
  color: var(--muted);
  font-size: 1rem;
}

.section-lead {
  margin-top: 0.9rem;
  max-width: 760px;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 46px;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-sm);
  font-weight: 750;
  font-size: 0.98rem;
  line-height: 1;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  border: 1px solid transparent;
}

.btn-pill {
  border-radius: var(--radius-pill);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(244, 91, 34, 0.28);
}

.btn-primary:hover {
  background: #E74916;
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(244, 91, 34, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--brand-deep);
  border-color: var(--brand-deep);
}

.btn-outline:hover {
  background: var(--brand-deep);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
  border-color: #fff;
}

.btn-light {
  background: #fff;
  color: var(--brand-deep);
  box-shadow: 0 8px 24px rgba(7, 59, 42, 0.18);
}

.btn-light:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.btn-accent-soft {
  background: var(--accent-soft);
  color: #9D3D16;
}

.btn-accent-soft:hover {
  background: #f4c9b3;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(217, 226, 219, 0.85);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(7, 59, 42, 0.08);
}

.header-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 78px;
  position: relative;
  gap: 18px;
}

.logo {
  justify-self: center;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.35rem;
  font-weight: 950;
  letter-spacing: -0.02em;
  color: var(--brand-deep);
  line-height: 1;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--brand);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 900;
  border-radius: 10px;
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.12);
}

.logo:hover {
  color: var(--brand);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.nav-left {
  justify-content: flex-end;
}

.nav-right {
  justify-content: flex-start;
}

.nav-link {
  position: relative;
  padding: 0.7rem 0.45rem;
  color: var(--ink);
  font-weight: 650;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.45rem;
  right: 0.45rem;
  bottom: 0.18rem;
  height: 3px;
  border-radius: 3px;
  background: transparent;
  transition: background 0.2s ease;
}

.nav-link:hover {
  color: var(--brand);
}

.nav-link.active {
  color: var(--brand-deep);
}

.nav-link.active::after {
  background: var(--accent);
}

.burger {
  display: none;
}

.burger-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg);
}

.mobile-panel {
  display: none;
}

/* Hero */
.page-hero {
  position: relative;
  color: #fff;
  background-image: linear-gradient(120deg, rgba(7, 45, 32, 0.96), rgba(7, 92, 62, 0.82)), url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center 32%;
  padding: 5.4rem 0 7rem;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  right: -220px;
  top: -140px;
  width: 510px;
  height: 510px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(255, 216, 77, 0.04), 0 0 0 160px rgba(255, 255, 255, 0.03);
}

.hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 4rem;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

.hero-kicker .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sun);
  display: inline-block;
}

.hero-title {
  color: #fff;
  max-width: 780px;
}

.hero-title strong {
  color: var(--sun);
  font-weight: 900;
}

.hero-desc {
  margin: 1.35rem 0 2rem;
  max-width: 660px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero-card {
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 22px;
  padding: 1.2rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 24px 60px rgba(7, 59, 42, 0.3);
}

.hero-card img {
  border-radius: 14px;
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.hero-card .card-badge {
  display: inline-block;
  background: var(--accent);
  border-radius: 999px;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.22rem 0.65rem;
  margin-top: 1rem;
}

.hero-card h3 {
  color: #fff;
  margin-top: 0.45rem;
  font-size: 1rem;
}

.hero-card p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.93rem;
  margin-top: 0.25rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.tag .tick {
  color: var(--sun);
}

/* Metric band */
.metric-band {
  position: relative;
  z-index: 5;
  margin-top: -3.2rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.metric-item {
  background: var(--surface);
  padding: 1.7rem 1.6rem;
}

.metric-item strong {
  display: block;
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--brand);
  letter-spacing: -0.02em;
}

.metric-item span {
  display: block;
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

/* Section intro */
.split-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.4rem;
}

.split-title .sp-left {
  max-width: 680px;
}

.split-title .sp-note {
  max-width: 340px;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Coverage cards */
.coverage-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 3rem;
  align-items: center;
}

.coverage-media {
  position: relative;
  border-radius: var(--radius-lg);
  margin-top: 1rem;
}

.coverage-media-main {
  border-radius: 22px;
  height: 400px;
  object-fit: cover;
  width: 100%;
  box-shadow: var(--shadow-card);
}

.coverage-note {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: -24px;
  background: var(--brand-deep);
  color: #fff;
  padding: 1rem 1.2rem;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  box-shadow: var(--shadow-pop);
}

.coverage-note .note-icon {
  width: 38px;
  height: 38px;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  font-weight: 900;
  border-radius: 10px;
}

.coverage-note strong {
  display: block;
  font-size: 0.92rem;
}

.coverage-note span {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.8rem;
}

.scene-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.scene-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.4rem 1.4rem 1.45rem;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}

.scene-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.scene-card.accent-border {
  border-top: 4px solid var(--accent);
}

.scene-card.main-card {
  background: var(--brand-deep);
  color: #fff;
}

.scene-card.main-card h3 {
  color: #fff;
}

.scene-card.main-card p {
  color: rgba(255, 255, 255, 0.82);
}

.scene-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  background: var(--bg);
  color: var(--brand);
  border: 1px solid var(--line);
}

.scene-card.main-card .scene-icon {
  background: rgba(255, 255, 255, 0.13);
  color: var(--sun);
  border-color: rgba(255, 255, 255, 0.18);
}

.scene-card h3 {
  margin-bottom: 0.2rem;
  font-size: 1.05rem;
}

.scene-card p {
  font-size: 0.94rem;
  margin-top: 0.2rem;
}

.scene-card .mini-tags {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--brand-deep);
  font-weight: 650;
  font-size: 0.78rem;
  border-radius: 999px;
  padding: 0.16rem 0.6rem;
}

.scene-card.main-card .chip {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Blueprint */
.blueprint-section {
  background: var(--brand-deep);
  color: #fff;
  padding: 4.6rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.blueprint-section::before {
  content: "";
  position: absolute;
  right: -160px;
  bottom: -160px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 76px rgba(255, 255, 255, 0.03);
}

.blueprint-section h2 {
  color: #fff;
}

.blueprint-section .section-lead {
  color: rgba(255, 255, 255, 0.78);
}

.blueprint-copy {
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: 2rem;
  justify-content: space-between;
  margin-bottom: 1.7rem;
}

.steps-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
}

.step-item {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  padding: 1.4rem 1rem 1.2rem;
  transition: transform 0.2s ease, background 0.2s ease;
}

.step-item:hover {
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-4px);
}

.step-num {
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--sun);
  line-height: 1;
  display: inline-block;
  margin-bottom: 0.75rem;
}

.step-item h3 {
  color: #fff;
  font-size: 0.98rem;
}

.step-item p {
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.87rem;
  margin-top: 0.35rem;
}

.round-note {
  margin-top: 1.4rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.84rem;
}

/* Responsibility */
.responsibility-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2.2rem;
  align-items: stretch;
}

.resp-card {
  background: var(--surface);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.resp-card.dark {
  background: var(--brand-deep);
  color: #fff;
  border: 0;
  box-shadow: var(--shadow-pop);
}

.resp-card.dark h3 {
  color: #fff;
}

.resp-card.dark p {
  color: rgba(255, 255, 255, 0.78);
}

.resp-card .section-kicker {
  display: inline-flex;
  align-items: center;
  background: var(--accent-soft);
  color: #A64013;
  font-weight: 800;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.78rem;
  margin-bottom: 0.7rem;
}

.resp-card.dark .section-kicker {
  background: var(--accent);
  color: #fff;
}

.check-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem 1.5rem;
  margin-top: 1.2rem;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.resp-card.dark .check-list li {
  color: rgba(255, 255, 255, 0.85);
}

.check-list .check {
  flex: none;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--brand-bright);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  margin-top: 0.18rem;
}

.resp-card.dark .check-list .check {
  background: var(--sun);
  color: var(--brand-deep);
}

.resp-card .desc {
  margin-top: 0.8rem;
  font-size: 0.9rem;
}

.resp-divider {
  display: none;
}

/* FAQ */
.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-bottom: 0.8rem;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 1.3rem 3.2rem 1.3rem 1.4rem;
  font-weight: 750;
  color: var(--brand-deep);
  line-height: 1.45;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.2rem;
  top: 50%;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--brand);
  font-size: 1.4rem;
  font-weight: 400;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
  background: var(--brand);
  color: #fff;
}

.faq-item[open] {
  box-shadow: var(--shadow-card);
}

.faq-item .faq-answer {
  padding: 0 1.4rem 1.3rem;
  color: var(--muted);
  font-size: 0.96rem;
}

/* CTA contact */
.contact-panel {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(7, 59, 42, 0.97), rgba(14, 107, 72, 0.92)), url("/assets/images/backpic/back-1.webp") center/cover;
  color: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow-pop);
  padding: clamp(1.5rem, 4vw, 3.4rem);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.8rem;
}

.contact-intro h2 {
  color: #fff;
  font-size: clamp(1.7rem, 2.8vw, 2.6rem);
}

.contact-intro p {
  color: rgba(255, 255, 255, 0.85);
  margin-top: 1.1rem;
}

.contact-line {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.8rem;
}

.contact-line .line-icon {
  width: 44px;
  height: 44px;
  flex: none;
  background: var(--sun);
  color: var(--brand-deep);
  font-weight: 900;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.contact-line strong {
  display: block;
  color: #fff;
}

.contact-line span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.88rem;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 18px;
  padding: 1.5rem;
  backdrop-filter: blur(6px);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 0.85rem;
  font-weight: 650;
  color: rgba(255, 255, 255, 0.9);
}

.field input,
.field select,
.field textarea {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 10px;
  color: #fff;
  padding: 0.7rem 0.85rem;
  min-height: 46px;
  appearance: auto;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.field textarea {
  min-height: 94px;
  resize: vertical;
}

.field select option {
  color: var(--ink);
  background: #fff;
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(255, 255, 255, 0.58);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--sun);
  box-shadow: 0 0 0 3px rgba(255, 216, 77, 0.22);
}

.form-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.7rem;
  margin-top: 0.5rem;
}

.form-privacy {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.8rem;
}

.form-success {
  grid-column: 1 / -1;
  background: rgba(35, 148, 92, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  border-radius: 10px;
  padding: 0.75rem 1rem;
  text-align: center;
  font-weight: 600;
  font-size: 0.92rem;
}

/* Footer */
.site-footer {
  background: var(--brand-deep);
  color: rgba(255, 255, 255, 0.75);
  padding-top: 4rem;
  margin-top: var(--space-section);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) 0.8fr 0.9fr 1fr;
  gap: 2.6rem;
  padding-bottom: 3.2rem;
}

.footer-brand .logo {
  color: #fff;
  justify-self: start;
}

.footer-brand .logo-mark {
  background: var(--accent);
}

.footer-brand p {
  margin-top: 1.2rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.92rem;
  max-width: 360px;
}

.footer-col h3 {
  color: #fff;
  font-size: 0.98rem;
  margin-bottom: 0.9rem;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.93rem;
  line-height: 2.15;
  transition: color 0.2s ease, padding 0.2s ease;
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.93rem;
  line-height: 1.7;
}

.footer-contact .contact-phone {
  color: var(--sun);
  font-size: 1.1rem;
  font-weight: 850;
  margin-top: 0.6rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.4rem 0;
  font-size: 0.84rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.45);
}

/* Responsive */
@media (max-width: 1080px) {
  .coverage-layout {
    grid-template-columns: 1fr;
  }
  .coverage-media {
    max-width: 760px;
  }

  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps-grid .step-item {
    margin-bottom: 0.4rem;
  }

  .responsibility-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .metric-band {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric-item {
    border-bottom: 1px solid var(--line);
  }
}

@media (min-width: 761px) and (max-width: 1000px) {
  .metric-band {
    margin-top: -2.4rem;
  }
}

@media (max-width: 920px) {
  .desktop-nav {
    display: none;
  }

  .burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
  }

  .header-row {
    display: flex;
    justify-content: center;
    min-height: 68px;
  }

  .logo {
    margin-inline: auto;
  }

  .mobile-panel {
    display: none;
  }

  body.menu-open .mobile-panel {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1400;
    background: rgba(248, 250, 247, 0.97);
    backdrop-filter: blur(14px);
    padding: 5.4rem 2rem 2rem;
    overflow-y: auto;
  }

  .mobile-panel .mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
  }

  .mobile-panel .mobile-nav a {
    font-size: 1.4rem;
    font-weight: 850;
    color: var(--brand-deep);
    padding: 0.9rem 0.2rem;
    border-bottom: 1px solid var(--line);
    transition: color 0.2s ease, padding 0.2s ease;
  }

  .mobile-panel .mobile-nav a:hover {
    color: var(--brand);
    padding-left: 0.6rem;
  }

  .mobile-panel .mobile-actions {
    margin-top: 1.6rem;
    display: flex;
    gap: 0.7rem;
  }

  .mobile-panel .mobile-actions .btn {
    flex: 1;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, 1280px);
  }

  .page-hero {
    padding: 3.4rem 0 6rem;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-card img {
    height: 180px;
  }

  .metric-band {
    grid-template-columns: 1fr;
    margin-top: -2.6rem;
    border-radius: 16px;
  }

  .metric-item {
    padding: 1.2rem 1.2rem;
  }

  .metric-item:nth-child(n+2) {
    border-top: 1px solid var(--line);
  }

  .section {
    padding: 3.8rem 0;
  }

  .split-title {
    display: block;
  }

  .split-title .sp-note {
    margin-top: 0.7rem;
  }

  .scene-card {
    grid-template-columns: 1fr;
  }

  .coverage-note {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    margin-top: 1rem;
    flex-wrap: wrap;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .round-note {
    text-align: left;
  }

  .check-list {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    grid-template-columns: 1fr;
    padding: 1.1rem;
  }

  .form-wrap {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }

  .nav-right .btn {
    display: none;
  }
}

@media (max-width: 460px) {
  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .resp-card {
    padding: 1.5rem;
  }
}

/* roulang page: category3 */
:root {
  --brand-deep: #073B2A;
  --brand: #0E6B48;
  --brand-bright: #149A61;
  --accent: #F45B22;
  --accent-soft: #FFE3D6;
  --sun: #FFD84D;
  --bg: #F5F7F4;
  --surface: #FFFFFF;
  --ink: #16211C;
  --muted: #5F6E64;
  --line: #D9E2DB;
  --danger: #D32F2F;
  --success: #2E7D32;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(7, 59, 42, 0.06);
  --shadow-md: 0 10px 30px rgba(7, 59, 42, 0.1);
  --shadow-lg: 0 20px 45px rgba(7, 59, 42, 0.18);
  --container: 1280px;
  --font-sans: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

body.no-scroll {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}

ul,
ol {
  list-style: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: clamp(20px, 4vw, 48px);
  padding-right: clamp(20px, 4vw, 48px);
}

.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--brand-deep);
  color: #fff;
}

.section-head {
  max-width: 780px;
  margin-bottom: 48px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-head .eyebrow {
  color: var(--brand);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 3px;
  border-radius: 2px;
  background: currentColor;
}

h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.3rem);
  font-weight: 800;
}

h3 {
  font-size: 1.1rem;
  font-weight: 800;
}

p {
  color: var(--muted);
}

.section-dark p,
.section-dark h2,
.section-dark h3 {
  color: inherit;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.btn:focus-visible,
.nav-link:focus-visible,
.nav-toggle:focus-visible,
.faq-summary:focus-visible,
.footer-link:focus-visible,
.link-more:focus-visible {
  outline: 3px solid rgba(244, 91, 34, 0.45);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(244, 91, 34, 0.24);
}

.btn-primary:hover {
  background: #db4c16;
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(244, 91, 34, 0.32);
}

.btn-brand {
  background: var(--brand);
  color: #fff;
}

.btn-brand:hover {
  background: var(--brand-bright);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.8);
  transform: translateY(-2px);
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(217, 226, 219, 0.8);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  min-height: 76px;
  gap: 16px;
}

.nav-left,
.nav-right {
  flex: 1 1 0;
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 30px);
}

.nav-left {
  justify-content: flex-start;
}

.nav-right {
  justify-content: flex-end;
}

.nav-link {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--ink);
  padding: 8px 2px;
  position: relative;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s ease;
}

.nav-link:hover {
  color: var(--brand);
}

.nav-link.active {
  color: var(--brand);
}

.nav-link.active::after {
  transform: scaleX(1);
}

.brand {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2;
}

.brand-logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--brand-deep);
  letter-spacing: 0.02em;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.brand-logo .logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(244, 91, 34, 0.18);
}

.btn-nav {
  background: var(--brand);
  color: #fff;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.9rem;
  padding: 10px 20px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.btn-nav:hover {
  background: var(--brand-bright);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--brand-deep);
  background: #fff;
  font-size: 1.4rem;
  line-height: 1;
}

.nav-toggle:hover {
  border-color: var(--brand);
}

.nav-toggle.open {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.mobile-menu {
  display: none;
}

/* ========== Hero ========== */
.category-hero {
  position: relative;
  background: var(--brand-deep);
  color: #fff;
  overflow: hidden;
}

.category-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.34;
}

.category-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.22;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 96px 0 80px;
  max-width: 920px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 216, 77, 0.14);
  border: 1px solid rgba(255, 216, 77, 0.35);
  color: var(--sun);
  font-size: 0.82rem;
  font-weight: 800;
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero-content h1 {
  margin-bottom: 22px;
}

.hero-content p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-facts {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.hero-fact {
  padding: 20px 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-fact:last-child {
  border-right: none;
}

.hero-fact strong {
  display: block;
  font-size: 1.7rem;
  font-weight: 900;
  color: var(--sun);
  margin-bottom: 4px;
}

.hero-fact span {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.8);
}

/* ========== Split Intro ========== */
.split-layout {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.split-copy h2 {
  margin-bottom: 18px;
}

.split-copy > p {
  margin-bottom: 24px;
}

.feature-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 15px 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-list li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.feature-list i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  margin-top: 2px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-style: normal;
  font-weight: 900;
  font-size: 0.9rem;
}

.feature-list strong {
  display: block;
  font-size: 0.98rem;
  margin-bottom: 3px;
}

.feature-list p {
  font-size: 0.9rem;
}

.visual-figure {
  position: relative;
}

.visual-figure img {
  width: 100%;
  aspect-ratio: 4 / 3.2;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.visual-note {
  position: absolute;
  left: -16px;
  bottom: 26px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 16px 20px;
  display: flex;
  gap: 12px;
  align-items: center;
  border-left: 4px solid var(--accent);
  max-width: 280px;
}

.visual-note span {
  font-size: 0.8rem;
  color: var(--muted);
}

.visual-note strong {
  display: block;
  color: var(--ink);
  font-size: 0.94rem;
}

.visual-note::after {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand-bright);
  box-shadow: 0 0 0 6px rgba(20, 154, 97, 0.12);
}

/* ========== Process ========== */
.process-section {
  background: var(--brand-deep);
  background-image:
    linear-gradient(rgba(7, 59, 42, 0.93), rgba(7, 59, 42, 0.93)),
    url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 18px;
}

.process-step {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 26px;
  min-height: 210px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.process-step:hover {
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-4px);
}

.process-index {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.process-index strong {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--sun);
  line-height: 1;
}

.process-index i {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--accent);
  transform: rotate(45deg);
  display: inline-block;
}

.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

/* ========== Matching scenes ========== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.scene-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.scene-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.scene-card .card-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 10px;
  font-weight: 900;
  margin-bottom: 16px;
}

.scene-card:nth-child(2) .card-no {
  background: rgba(14, 107, 72, 0.12);
  color: var(--brand);
}

.scene-card:nth-child(3) .card-no {
  background: rgba(255, 216, 77, 0.22);
  color: #a37c00;
}

.scene-card h3 {
  margin-bottom: 10px;
}

.scene-card p {
  font-size: 0.93rem;
}

.scene-tags {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  padding: 5px 10px;
  border-radius: 999px;
  background: #f2f5f2;
  color: var(--brand-deep);
  border: 1px solid var(--line);
  font-size: 0.78rem;
  font-weight: 700;
}

/* ========== Compare ========== */
.compare-wrap {
  border-radius: var(--radius-lg);
  overflow: auto;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--line);
}

.compare-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: #fff;
}

.compare-table th,
.compare-table td {
  padding: 18px 20px;
  text-align: left;
  vertical-align: top;
}

.compare-table thead th {
  background: var(--brand-deep);
  color: #fff;
  font-size: 0.98rem;
  font-weight: 800;
}

.compare-table thead th:first-child {
  width: 16%;
  background: #0a442f;
}

.compare-table thead th:nth-child(3) {
  background: var(--accent);
}

.compare-table tbody td {
  border-bottom: 1px solid #edf2ee;
  font-size: 0.93rem;
  color: var(--muted);
}

.compare-table tbody td:first-child {
  font-weight: 800;
  color: var(--ink);
  background: #fafcfb;
}

.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table strong {
  color: var(--brand-deep);
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item[open] {
  border-color: var(--brand);
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 18px 20px;
  font-weight: 800;
  color: var(--ink);
  cursor: pointer;
  font-size: 1rem;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 400;
  transition: transform 0.2s ease, background 0.2s ease;
  line-height: 1;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
  background: var(--accent);
  color: #fff;
}

.faq-item summary:hover {
  color: var(--brand);
}

.faq-item .faq-answer {
  padding: 0 20px 20px 52px;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ========== CTA ========== */
.cta-panel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: url('/assets/images/coverpic/cover-8.webp') center / cover no-repeat var(--brand-deep);
  padding: 70px 60px;
}

.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7, 59, 42, 0.95) 20%, rgba(7, 59, 42, 0.76));
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  color: #fff;
}

.cta-inner h2 {
  margin-bottom: 18px;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 34px;
  font-size: 1.02rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.contact-line {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
}

.contact-line span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.contact-line span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sun);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--brand-deep);
  color: rgba(255, 255, 255, 0.76);
  margin-top: 0;
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .brand-logo {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.92rem;
  max-width: 300px;
}

.footer-title {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 18px;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-link {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-link:hover {
  color: var(--sun);
  padding-left: 4px;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.footer-contact strong {
  color: #fff;
  font-weight: 800;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.86rem;
}

/* ========== Convert bar ========== */
.convert-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 80;
  background: #fff;
  box-shadow: 0 -6px 24px rgba(7, 59, 42, 0.12);
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 14px 24px;
  flex-wrap: wrap;
}

.convert-bar p {
  font-weight: 800;
  color: var(--brand-deep);
  font-size: 0.95rem;
}

.convert-bar .convert-btn {
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.9rem;
  transition: background 0.2s ease;
}

.convert-bar .convert-btn:hover {
  background: #db4c16;
}

.convert-close {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 1.1rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.convert-close:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.convert-spacer {
  height: 70px;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .section {
    padding: 64px 0;
  }

  .header-inner {
    min-height: 66px;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .brand {
    position: static;
    transform: none;
    margin-right: auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .mobile-menu {
    display: block;
    position: fixed;
    top: 67px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    padding: 24px 28px 40px;
    overflow-y: auto;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.24s ease, visibility 0.24s ease;
  }

  .mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
  }

  .mobile-menu nav {
    display: grid;
    gap: 6px;
  }

  .mobile-menu-link {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--ink);
    padding: 14px 10px;
    border-bottom: 1px solid var(--line);
    transition: color 0.2s ease;
  }

  .mobile-menu-link:hover,
  .mobile-menu-link.active {
    color: var(--brand);
  }

  .mobile-menu-bottom {
    margin-top: 28px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }

  .mobile-menu-bottom .btn {
    flex: 1;
    min-width: 180px;
  }

  .split-layout {
    grid-template-columns: 1fr;
  }

  .visual-figure img {
    aspect-ratio: 16 / 10;
  }

  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .scene-card:last-child {
    grid-column: 1 / -1;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-content {
    padding-top: 72px;
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

  .hero-content p {
    font-size: 0.97rem;
  }

  .hero-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 40px;
  }

  .hero-fact {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: 16px;
  }

  .hero-fact:nth-child(2n) {
    border-right: none;
  }

  .hero-fact:nth-child(3),
  .hero-fact:nth-child(4) {
    border-bottom: none;
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .scene-grid {
    grid-template-columns: 1fr;
  }

  .scene-card:last-child {
    grid-column: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .cta-panel {
    padding: 44px 24px;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .convert-bar {
    align-items: center;
    padding: 12px 16px;
    gap: 10px;
  }

  .convert-bar p {
    width: 100%;
    text-align: center;
    font-size: 0.85rem;
  }

  .convert-close {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
  }

  .visual-note {
    left: 8px;
    right: 8px;
    bottom: 16px;
    max-width: none;
  }

  .faq-item .faq-answer {
    padding-left: 20px;
  }

  .section-head {
    margin-bottom: 32px;
  }
}

@media (max-width: 520px) {
  .hero-fact {
    padding: 12px;
  }

  .hero-fact strong {
    font-size: 1.3rem;
  }

  .hero-fact span {
    font-size: 0.8rem;
  }

  .mobile-menu-link {
    font-size: 1.15rem;
  }

  .compare-table th,
  .compare-table td {
    padding: 14px 16px;
  }
}