/* roulang page: index */
:root{
  --brand:#0e6f68;
  --brand-600:#0b5a55;
  --brand-100:#e6f2f0;
  --accent:#e8a33d;
  --accent-dark:#c9862a;
  --ink:#0e1c1b;
  --ink-2:#31474a;
  --muted:#5f7774;
  --bg:#f5f8f7;
  --surface:#ffffff;
  --line:#e2eae8;
  --deep:#07211f;
  --radius:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(11,42,40,.06),0 4px 14px rgba(11,42,40,.05);
  --shadow-md:0 10px 30px rgba(11,42,40,.10);
  --shadow-lg:0 22px 56px rgba(11,42,40,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(11,42,40,.09)}
.nav{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17.5px;letter-spacing:.3px;color:var(--ink);white-space:nowrap}
.brand__mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(140deg,#128a80,#0b5a55);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 16px rgba(14,111,104,.3);
}
.brand__mark svg{width:19px;height:19px}
.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:1.6px;color:var(--muted);line-height:1.2}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  min-height:40px;
}
.nav__link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;flex:none}
.nav__link:hover{background:var(--brand-100);color:var(--brand-600)}
.nav__link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,111,104,.26)}
.nav__link:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:2px}
.nav__cta{margin-left:10px}
.nav__toggle{
  display:none;margin-left:auto;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;color:var(--brand-600);
}
.nav__toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:8px;
  font-weight:700;font-size:15px;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(14,111,104,.26)}
.btn--primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 14px 28px rgba(14,111,104,.32)}
.btn--accent{background:var(--accent);color:#241708}
.btn--accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn--ghost{border-color:rgba(180,224,218,.45);color:#eaf6f4;background:rgba(255,255,255,.07)}
.btn--ghost:hover{background:rgba(255,255,255,.17);transform:translateY(-2px)}
.btn--outline{border-color:#cfe0dd;color:var(--brand-600);background:#fff}
.btn--outline:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:3px}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.2px;
  background:var(--brand-100);color:var(--brand-600);white-space:nowrap;
}
.tag--amber{background:#fdf1de;color:#a9711f}
.tag--dark{background:rgba(122,196,187,.16);color:#8fd8cc}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--deep);color:#eaf6f4;overflow:hidden;isolation:isolate}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(112deg,rgba(6,30,28,.95) 34%,rgba(6,30,28,.55) 100%);
}
.hero__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
  padding:76px 0 84px;
}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:2px;color:#8fd8cc;
  text-transform:uppercase;margin-bottom:18px;
}
.hero__eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--accent)}
.hero h1{
  font-size:clamp(26px,3.4vw,42px);
  line-height:1.28;font-weight:800;letter-spacing:-.4px;
  margin:0 0 20px;color:#fff;
}
.hero__lead{font-size:16px;line-height:1.85;color:#bcd6d2;max-width:600px;margin-bottom:26px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero__tags{display:flex;flex-wrap:wrap;gap:9px}
.hero__tags .tag{background:rgba(122,196,187,.14);color:#9fe0d6;border:1px solid rgba(122,196,187,.26)}

.hero-panel{
  background:rgba(4,20,19,.86);
  border:1px solid rgba(122,196,187,.26);
  border-radius:16px;padding:18px 20px 20px;
  box-shadow:var(--shadow-lg);
  backdrop-filter:blur(6px);
}
.hero-panel__bar{display:flex;align-items:center;gap:7px;padding-bottom:12px;border-bottom:1px solid rgba(122,196,187,.18);margin-bottom:15px}
.hero-panel__bar .dot{width:9px;height:9px;border-radius:50%;background:rgba(122,196,187,.38)}
.hero-panel__title{margin-left:8px;font-size:12.5px;letter-spacing:1.2px;color:#8fc4bd;font-weight:600}
.hero-panel__code{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;
  font-size:13px;line-height:2.05;color:#cfe6e2;
  margin:0 0 18px;white-space:pre-wrap;word-break:break-word;
}
.c-amber{color:#f0b45c;font-weight:600}
.c-teal{color:#6fd3c5;font-weight:600}
.hero-panel .btn{width:100%}

/* ---------- sections ---------- */
.section{padding:74px 0}
.section--tight{padding:56px 0}
.section--alt{background:#fff}
.section--deep{background:var(--deep);color:#dceceb;position:relative;overflow:hidden}
.section--deep::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.16;
}
.section--deep .container{position:relative;z-index:1}
.sec-head{max-width:740px;margin-bottom:36px}
.sec-head__kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--brand);
}
.sec-head__kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}
.sec-head h2{font-size:clamp(21px,2.7vw,29px);line-height:1.36;font-weight:800;letter-spacing:-.3px;margin:12px 0 12px}
.sec-head p{color:var(--muted);font-size:15.5px;line-height:1.85;max-width:660px}
.section--deep .sec-head__kicker{color:#8fd8cc}
.section--deep .sec-head p{color:#a9c6c2}

/* ---------- grids ---------- */
.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* ---------- cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
  padding:22px;display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.card h3{font-size:17px;font-weight:800;line-height:1.45;letter-spacing:-.1px}
.card p{color:var(--muted);font-size:14.5px;line-height:1.8}
.card__icon{
  width:42px;height:42px;border-radius:11px;flex:none;
  display:grid;place-items:center;background:var(--brand-100);color:var(--brand-600);
}
.card__icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7}
.card--media{padding:0;overflow:hidden;gap:0}
.card--media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:17px;font-weight:800;line-height:1.45}
.card__body p{color:var(--muted);font-size:14.5px;line-height:1.8}
.card__foot{margin-top:auto;padding-top:6px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.step__num{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:#fff;font-weight:800;font-size:15px;margin-bottom:14px;
}
.step h3{font-size:16px;font-weight:800;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px;line-height:1.8}

/* ---------- chart ---------- */
.chart-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-sm);
}
.chart{display:flex;flex-direction:column;gap:18px}
.chart__row{display:grid;grid-template-columns:130px 1fr 70px;align-items:center;gap:16px;font-size:14px}
.chart__label{font-weight:700;color:var(--ink-2)}
.chart__bar{height:12px;border-radius:999px;background:#eaf2f0;overflow:hidden}
.chart__bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#12837a,#0b5a55)}
.chart__bar span.is-amber{background:linear-gradient(90deg,#efa93f,#c9862a)}
.chart__val{text-align:right;font-weight:800;color:var(--brand-600);font-variant-numeric:tabular-nums}
.chart-note{margin-top:20px;color:var(--muted);font-size:14px;line-height:1.8;border-top:1px dashed var(--line);padding-top:16px}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{
  background:rgba(255,255,255,.07);border:1px solid rgba(122,196,187,.24);
  border-radius:var(--radius);padding:24px 20px;text-align:center;
  transition:background .2s ease,transform .2s ease;
}
.stat:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.stat strong{display:block;font-size:32px;line-height:1.2;color:#f0b45c;font-weight:800;letter-spacing:-.5px}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:#b6d2ce}

/* ---------- quotes ---------- */
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.quote p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.quote__who{display:flex;align-items:center;gap:11px;margin-top:auto}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-600);font-weight:800;font-size:14px;
}
.quote__who b{display:block;font-size:14px;line-height:1.4}
.quote__who i{display:block;font-style:normal;font-size:12.5px;color:var(--muted)}

/* ---------- audience list ---------- */
.aud-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.aud{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.aud:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.aud__dot{
  width:10px;height:10px;border-radius:50%;background:var(--accent);
  margin-top:9px;flex:none;
}
.aud b{display:block;font-size:15.5px;margin-bottom:5px}
.aud p{color:var(--muted);font-size:14px;line-height:1.8}

/* ---------- channel wall ---------- */
.channels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.channel{
  display:flex;flex-direction:column;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.channel__icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-600);
}
.channel__icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7}
.channel h3{font-size:17.5px;font-weight:800}
.channel p{color:var(--muted);font-size:14.5px;line-height:1.8;flex:1}
.channel__more{font-size:14px;font-weight:800;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}
.channel:hover .channel__more{color:var(--brand)}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:28px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:grid;grid-template-columns:170px 1fr;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe3df}
.news-item__img{width:100%;height:118px;object-fit:cover;border-radius:9px}
.news-item__body{display:flex;flex-direction:column;gap:7px;min-width:0}
.news-item__body h3{font-size:16px;font-weight:800;line-height:1.5}
.news-item__body p{color:var(--muted);font-size:13.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item__date{font-size:12.5px;color:#8ba19e;margin-top:auto}
.news-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-sm);
}
.news-side h3{font-size:16px;font-weight:800;margin-bottom:6px}
.news-side .side-hint{font-size:13px;color:var(--muted);margin-bottom:14px}
.side-item{display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line);transition:opacity .2s ease}
.side-item:last-child{border-bottom:0;padding-bottom:0}
.side-item:hover{opacity:.75}
.side-item img{width:62px;height:62px;object-fit:cover;border-radius:8px;flex:none}
.side-item b{display:block;font-size:13.5px;line-height:1.55;font-weight:700}
.side-item span{font-size:12px;color:#8ba19e}
.empty-note{
  background:#fff;border:1px dashed #cfe0dd;border-radius:var(--radius);
  padding:28px;text-align:center;color:var(--muted);font-size:14.5px;
}

/* ---------- form ---------- */
.form-wrap{
  display:grid;grid-template-columns:1fr .92fr;gap:40px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px;box-shadow:var(--shadow-sm);
}
.form-wrap h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.4;margin-bottom:12px}
.form-wrap > div > p{color:var(--muted);font-size:15px;line-height:1.85}
.form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13px;font-weight:700;color:var(--ink-2)}
.field input{
  height:46px;padding:0 14px;border-radius:9px;border:1px solid var(--line);
  background:#fbfdfc;font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#a4b8b5}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(14,111,104,.12);background:#fff}
.form .btn{width:100%}
.form-note{font-size:12.5px;color:#8ba19e;line-height:1.7}
.form-feedback{
  display:none;margin-top:4px;font-size:13.5px;font-weight:700;color:var(--brand-600);
}
.form-feedback.is-on{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:#adc9c5;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:38px;padding-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .brand__mark{width:32px;height:32px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin:0 0 14px;letter-spacing:.3px}
.footer-col p{font-size:13.5px;line-height:1.85;color:#9dbbb7;max-width:340px}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:13.5px;color:#9dbbb7;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:#f0b45c;padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(122,196,187,.18);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  font-size:12.5px;color:#8aa8a4;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero__inner{grid-template-columns:1fr;gap:36px;padding:58px 0 64px}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .channels{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:1fr}
  .form-wrap{grid-template-columns:1fr;gap:26px;padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
  .nav__toggle{display:inline-flex}
  .nav__cta{display:none}
  .nav__links{
    position:absolute;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 18px 18px;box-shadow:var(--shadow-md);display:none;
  }
  .nav__links.is-open{display:flex}
  .nav__link{justify-content:flex-start;min-height:44px;padding:10px 14px;font-size:15px}
}
@media (max-width:768px){
  .section{padding:54px 0}
  .section--tight{padding:42px 0}
  .grid--3{grid-template-columns:1fr}
  .channels{grid-template-columns:1fr}
  .aud-list{grid-template-columns:1fr}
  .chart__row{grid-template-columns:96px 1fr 56px;gap:10px;font-size:13px}
  .news-item{grid-template-columns:1fr}
  .news-item__img{height:160px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .grid--4,.grid--2,.steps,.stats{grid-template-columns:1fr}
  .hero h1{font-size:25px}
  .hero__lead{font-size:15px}
  .hero__actions .btn{width:100%}
  .stat strong{font-size:27px}
  .form-wrap{padding:22px}
  .hero-panel__code{font-size:12px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
 --brand:#0e6f68;
 --brand-600:#0b5a55;
 --brand-100:#e6f2f0;
 --accent:#e8a33d;
 --accent-dark:#c9862a;
 --ink:#0e1c1b;
 --ink-2:#31474a;
 --muted:#5f7774;
 --bg:#f5f8f7;
 --surface:#ffffff;
 --line:#e2eae8;
 --deep:#07211f;
 --radius:12px;
 --radius-lg:18px;
 --shadow-sm:0 1px 2px rgba(11,42,40,.06),0 4px 14px rgba(11,42,40,.05);
 --shadow-md:0 10px 30px rgba(11,42,40,.10);
 --shadow-lg:0 22px 56px rgba(11,42,40,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.95);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(11,42,40,.09)}
.nav{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17.5px;letter-spacing:.3px;color:var(--ink);white-space:nowrap}
.brand__mark{
 width:34px;height:34px;border-radius:10px;flex:none;
 background:linear-gradient(140deg,#128a80,#0b5a55);
 display:grid;place-items:center;color:#fff;
 box-shadow:0 6px 16px rgba(14,111,104,.3);
}
.brand__mark svg{width:19px;height:19px}
.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:1.6px;color:var(--muted);line-height:1.2}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
 display:inline-flex;align-items:center;gap:7px;
 padding:8px 13px;border-radius:10px;
 font-size:14.5px;font-weight:600;color:var(--ink-2);
 transition:background .2s ease,color .2s ease,box-shadow .2s ease;
 min-height:40px;
}
.nav__link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;flex:none}
.nav__link:hover{background:var(--brand-100);color:var(--brand-600)}
.nav__link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,111,104,.26)}
.nav__link:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:2px}
.nav__cta{margin-left:10px}
.nav__toggle{
 display:none;margin-left:auto;align-items:center;justify-content:center;
 width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
 background:#fff;cursor:pointer;color:var(--brand-600);
}
.nav__toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:0 20px;border-radius:8px;
 font-weight:700;font-size:15px;line-height:1;letter-spacing:.2px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(14,111,104,.26)}
.btn--primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 14px 28px rgba(14,111,104,.32)}
.btn--accent{background:var(--accent);color:#241708}
.btn--accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn--ghost{border-color:rgba(180,224,218,.45);color:#eaf6f4;background:rgba(255,255,255,.07)}
.btn--ghost:hover{background:rgba(255,255,255,.17);transform:translateY(-2px)}
.btn--outline{border-color:#cfe0dd;color:var(--brand-600);background:#fff}
.btn--outline:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:3px}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- tags ---------- */
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 11px;border-radius:999px;
 font-size:12.5px;font-weight:700;letter-spacing:.2px;
 background:var(--brand-100);color:var(--brand-600);white-space:nowrap;
}
.tag--amber{background:#fdf1de;color:#a9711f}
.tag--dark{background:rgba(122,196,187,.16);color:#8fd8cc}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--deep);color:#eaf6f4;overflow:hidden;isolation:isolate}
.hero::before{
 content:"";position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 opacity:.34;
}
.hero::after{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(112deg,rgba(6,30,28,.96) 34%,rgba(6,30,28,.55) 100%);
}
.hero__inner{
 position:relative;z-index:2;
 display:grid;grid-template-columns:5fr 7fr;gap:54px;align-items:center;
 padding:70px 0 82px;
}
.hero__eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;font-weight:700;letter-spacing:2px;color:#8fd8cc;
 text-transform:uppercase;margin-bottom:18px;
}
.hero__eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--accent)}
.hero h1{
 font-size:clamp(26px,3.3vw,40px);
 line-height:1.3;font-weight:800;letter-spacing:-.4px;
 margin:0 0 20px;color:#fff;
}
.hero__lead{font-size:16px;line-height:1.85;color:#bcd6d2;max-width:560px;margin-bottom:26px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero__tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}
.hero__tags .tag{background:rgba(122,196,187,.14);color:#9fe0d6;border:1px solid rgba(122,196,187,.26)}
.hero__kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:480px}
.hero__kpi-item{
 border:1px solid rgba(122,196,187,.24);
 background:rgba(4,20,19,.55);
 border-radius:12px;padding:12px 14px;
}
.hero__kpi-item b{display:block;font-size:23px;line-height:1.2;color:#ffd79a;font-weight:800;letter-spacing:-.5px}
.hero__kpi-item span{font-size:12.5px;color:#9dbfba;letter-spacing:.4px}
.hero__media{position:relative}
.hero__media::before{
 content:"";position:absolute;inset:22px -18px -18px 30px;
 border:1px solid rgba(122,196,187,.3);
 border-radius:20px;transform:rotate(-4deg);
 pointer-events:none;
}
.hero__figure{
 position:relative;
 border-radius:20px;overflow:hidden;
 box-shadow:var(--shadow-lg);
 border:1px solid rgba(122,196,187,.28);
 transform:rotate(-1.6deg);
 background:#06201e;
}
.hero__figure img{width:100%;aspect-ratio:16/11;object-fit:cover;opacity:.94;transition:transform .5s ease}
.hero__figure:hover img{transform:scale(1.03)}
.hero__badge{
 position:absolute;left:-14px;bottom:-16px;
 background:var(--accent);color:#241708;
 font-weight:800;font-size:13.5px;letter-spacing:.3px;
 padding:10px 16px;border-radius:10px;
 box-shadow:0 14px 30px rgba(0,0,0,.28);
 transform:rotate(1.6deg);
}
.hero__badge small{display:block;font-size:11.5px;font-weight:700;color:#5a3d10;letter-spacing:.6px}

/* ---------- section base ---------- */
.section{padding:76px 0}
.section--tint{background:#eef4f2}
.section--paper{background:var(--surface)}
.section--deep{background:var(--deep);color:#e3f1ee}
.section-head{max-width:760px;margin-bottom:40px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--brand);
 text-transform:uppercase;margin-bottom:12px;
}
.section-kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}
.section--deep .section-kicker{color:#8fd8cc}
.section-title{font-size:clamp(22px,2.4vw,30px);line-height:1.4;font-weight:800;letter-spacing:-.3px;color:var(--ink);margin-bottom:12px}
.section--deep .section-title{color:#fff}
.section-sub{font-size:15px;line-height:1.85;color:var(--muted);max-width:680px}
.section--deep .section-sub{color:#a9c8c3}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:24px 22px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.card__icon{
 width:42px;height:42px;border-radius:11px;
 display:grid;place-items:center;margin-bottom:16px;
 background:var(--brand-100);color:var(--brand-600);
}
.card__icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card__icon--amber{background:#fdf1de;color:var(--accent-dark)}
.card h3{font-size:17px;font-weight:800;line-height:1.5;color:var(--ink);margin-bottom:9px}
.card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:14px}
.card__tags{display:flex;flex-wrap:wrap;gap:7px}

/* ---------- media card ---------- */
.media-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.media-card__img{position:relative;overflow:hidden;background:#0b3a37}
.media-card__img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease}
.media-card:hover .media-card__img img{transform:scale(1.05)}
.media-card__badge{
 position:absolute;left:14px;top:14px;
 background:rgba(7,33,31,.78);color:#c9f0e8;
 font-size:12px;font-weight:700;letter-spacing:.4px;
 padding:4px 10px;border-radius:999px;
 border:1px solid rgba(140,220,208,.28);
}
.media-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.media-card__body h3{font-size:16.5px;font-weight:800;line-height:1.5;color:var(--ink)}
.media-card__body p{font-size:14px;line-height:1.8;color:var(--muted);flex:1}
.media-card__meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;color:#87a09d}

/* ---------- steps ---------- */
.steps-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.step-item{position:relative;padding-left:64px;padding-bottom:30px}
.step-item:last-child{padding-bottom:0}
.step-item::before{
 content:"";position:absolute;left:20px;top:44px;bottom:0;width:2px;
 background:linear-gradient(180deg,rgba(14,111,104,.35),rgba(14,111,104,.05));
}
.step-item:last-child::before{display:none}
.step-item__num{
 position:absolute;left:0;top:0;
 width:42px;height:42px;border-radius:12px;
 display:grid;place-items:center;
 background:var(--brand);color:#fff;font-weight:800;font-size:15px;
 box-shadow:0 10px 22px rgba(14,111,104,.26);
}
.step-item h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:7px;line-height:1.5}
.step-item p{font-size:14.5px;line-height:1.85;color:var(--muted)}
.steps-figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);position:relative}
.steps-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.steps-note{
 margin-top:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:14px 18px;font-size:14px;color:var(--ink-2);line-height:1.8;box-shadow:var(--shadow-sm);
}
.steps-note b{color:var(--brand-600)}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{
 background:rgba(122,196,187,.08);
 border:1px solid rgba(122,196,187,.22);
 border-radius:var(--radius);padding:22px 20px;
 transition:background .2s ease,transform .2s ease;
}
.stat:hover{background:rgba(122,196,187,.14);transform:translateY(-3px)}
.stat b{display:block;font-size:30px;font-weight:800;color:#ffd79a;line-height:1.2;letter-spacing:-.6px}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:#a9c8c3;line-height:1.6}

/* ---------- chart table ---------- */
.chart-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow:hidden;
}
.chart-head{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line);background:#f8fbfa}
.chart-head h3{font-size:16.5px;font-weight:800;color:var(--ink)}
.chart-table{width:100%;border-collapse:collapse;font-size:14.5px}
.chart-table th,.chart-table td{padding:14px 24px;text-align:left;border-bottom:1px solid var(--line)}
.chart-table th{font-size:13px;font-weight:800;letter-spacing:.6px;color:var(--brand-600);background:#f2f8f7;white-space:nowrap}
.chart-table td{color:var(--ink-2)}
.chart-table tbody tr{transition:background .18s ease}
.chart-table tbody tr:hover{background:#f6fbfa}
.chart-table tbody tr:last-child td{border-bottom:0}
.chart-table td b{color:var(--brand-600)}

/* ---------- quote ---------- */
.quote{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 display:flex;flex-direction:column;gap:14px;
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.quote__stars{display:flex;gap:4px;color:var(--accent)}
.quote__stars svg{width:15px;height:15px;fill:currentColor;stroke:none}
.quote p{font-size:14.5px;line-height:1.85;color:var(--ink-2);flex:1}
.quote__who{display:flex;align-items:center;gap:11px;padding-top:6px;border-top:1px dashed var(--line)}
.quote__avatar{
 width:38px;height:38px;border-radius:50%;flex:none;
 display:grid;place-items:center;font-weight:800;font-size:14px;
 background:var(--brand-100);color:var(--brand-600);
}
.quote__who b{display:block;font-size:14px;color:var(--ink)}
.quote__who span{font-size:12.5px;color:var(--muted)}

/* ---------- audience ---------- */
.audience-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:center}
.audience-figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md)}
.audience-figure img{width:100%;aspect-ratio:1/1;object-fit:cover}
.audience-list{display:grid;gap:16px}
.audience-item{display:flex;gap:14px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .2s ease,border-color .2s ease}
.audience-item:hover{transform:translateY(-3px);border-color:#c9dedb}
.audience-item__dot{
 width:34px;height:34px;flex:none;border-radius:9px;
 display:grid;place-items:center;background:var(--brand-100);color:var(--brand-600);
}
.audience-item__dot svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.audience-item h3{font-size:15.5px;font-weight:800;color:var(--ink);margin-bottom:4px}
.audience-item p{font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- post list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.post-card__link{display:block;padding:22px 22px 20px;height:100%}
.post-card h3{font-size:16px;font-weight:800;line-height:1.55;color:var(--ink);margin-bottom:9px;transition:color .2s ease}
.post-card:hover h3{color:var(--brand-600)}
.post-card p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:14px}
.post-card__meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#87a09d}
.post-card__meta span{padding:3px 9px;border-radius:999px;background:var(--brand-100);color:var(--brand-600);font-weight:700}
.list-empty{
 padding:34px 24px;text-align:center;color:var(--muted);font-size:14.5px;
 background:var(--surface);border:1px dashed #cfe0dd;border-radius:var(--radius);
}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq__item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item[open]{border-color:#bfdcd8;box-shadow:var(--shadow-md)}
.faq__item summary{
 cursor:pointer;list-style:none;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:18px 22px;font-size:15.5px;font-weight:800;color:var(--ink);
 transition:color .2s ease,background .2s ease;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{color:var(--brand-600);background:#f8fbfa}
.faq__item summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand);line-height:1;flex:none;
 transition:transform .2s ease;
}
.faq__item[open] summary::after{content:"−";transform:rotate(0)}
.faq__body{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;isolation:isolate;
 background:var(--deep);border-radius:var(--radius-lg);
 padding:44px 46px;
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
 color:#e6f5f2;box-shadow:var(--shadow-md);
}
.cta-band::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:url('/assets/images/backpic/back-4.webp') center/cover no-repeat;
 opacity:.22;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;color:#fff;margin-bottom:10px;line-height:1.4}
.cta-band p{font-size:14.5px;line-height:1.8;color:#a9c8c3;max-width:560px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:#05201e;color:#a9c8c3;padding:56px 0 0;border-top:1px solid rgba(122,196,187,.16)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-col p{font-size:14px;line-height:1.85;color:#96b6b1;max-width:360px}
.footer-col h4{font-size:14px;font-weight:800;color:#e6f5f2;margin:0 0 14px;letter-spacing:.4px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#96b6b1;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:#8fd8cc;transform:translateX(3px)}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 padding:18px 0 22px;border-top:1px solid rgba(122,196,187,.14);
 font-size:13px;color:#7fa09b;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .nav__toggle{display:inline-flex}
 .nav__cta{display:none}
 .nav__links{
   position:absolute;left:0;right:0;top:64px;
   display:none;flex-direction:column;align-items:stretch;gap:4px;
   background:#fff;border-bottom:1px solid var(--line);
   padding:12px 18px 18px;box-shadow:var(--shadow-md);
 }
 .nav__links.is-open{display:flex}
 .nav__link{justify-content:flex-start;padding:11px 12px;font-size:15px}
 .hero__inner{grid-template-columns:1fr;gap:38px;padding:52px 0 64px}
 .hero__media::before{inset:18px -10px -14px 18px}
 .hero__kpi{max-width:100%}
 .steps-wrap,.audience-wrap{grid-template-columns:1fr;gap:30px}
 .grid-3,.grid-4,.post-grid{grid-template-columns:repeat(2,1fr)}
 .stats{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .audience-figure img{aspect-ratio:16/10}
}
@media (max-width:768px){
 .section{padding:56px 0}
 .hero h1{font-size:26px}
 .grid-3,.grid-4,.grid-2,.post-grid{grid-template-columns:1fr}
 .chart-table th,.chart-table td{padding:12px 16px}
 .chart-table{font-size:13.5px}
 .cta-band{padding:32px 24px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .footer-col p{max-width:100%}
}
@media (max-width:520px){
 .container{padding:0 16px}
 .brand{font-size:16px}
 .brand small{letter-spacing:1px}
 .hero__kpi{grid-template-columns:1fr 1fr}
 .stats{grid-template-columns:1fr}
 .hero__badge{left:0;bottom:-12px;font-size:12.5px}
 .footer-bottom{flex-direction:column;font-size:12.5px}
 .chart-head{padding:16px 18px}
 .chart-table th,.chart-table td{padding:11px 14px}
}

/* roulang page: article */
:root{
  --brand:#0e6f68;
  --brand-600:#0b5a55;
  --brand-100:#e6f2f0;
  --accent:#e8a33d;
  --accent-dark:#c9862a;
  --ink:#0e1c1b;
  --ink-2:#31474a;
  --muted:#5f7774;
  --bg:#f5f8f7;
  --surface:#ffffff;
  --line:#e2eae8;
  --deep:#07211f;
  --radius:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(11,42,40,.06),0 4px 14px rgba(11,42,40,.05);
  --shadow-md:0 10px 30px rgba(11,42,40,.10);
  --shadow-lg:0 22px 56px rgba(11,42,40,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(11,42,40,.09)}
.nav{display:flex;align-items:center;gap:16px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17.5px;letter-spacing:.3px;color:var(--ink);white-space:nowrap}
.brand__mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(140deg,#128a80,#0b5a55);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 16px rgba(14,111,104,.3);
}
.brand__mark svg{width:19px;height:19px}
.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:1.6px;color:var(--muted);line-height:1.2}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  min-height:40px;
}
.nav__link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;flex:none}
.nav__link:hover{background:var(--brand-100);color:var(--brand-600)}
.nav__link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,111,104,.26)}
.nav__link:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:2px}
.nav__cta{margin-left:10px}
.nav__toggle{
  display:none;margin-left:auto;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;color:var(--brand-600);
}
.nav__toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:8px;
  font-weight:700;font-size:15px;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(14,111,104,.26)}
.btn--primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 14px 28px rgba(14,111,104,.32)}
.btn--accent{background:var(--accent);color:#241708}
.btn--accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn--ghost{border-color:rgba(180,224,218,.45);color:#eaf6f4;background:rgba(255,255,255,.07)}
.btn--ghost:hover{background:rgba(255,255,255,.17);transform:translateY(-2px)}
.btn--outline{border-color:#cfe0dd;color:var(--brand-600);background:#fff}
.btn--outline:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:3px}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.2px;
  background:var(--brand-100);color:var(--brand-600);white-space:nowrap;
}
.tag--amber{background:#fdf1de;color:#a9711f}
.tag--dark{background:rgba(122,196,187,.16);color:#8fd8cc}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:#8fb3ae;padding:22px 0 0;
}
.crumb a{color:#a8cbc5;transition:color .2s ease}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.55}
.crumb .crumb__now{color:#dfeeeb}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;background:var(--deep);color:#eaf6f4;overflow:hidden;isolation:isolate;
}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.32;
}
.article-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(112deg,rgba(6,30,28,.96) 38%,rgba(6,30,28,.6) 100%);
}
.article-hero__inner{padding:20px 0 46px;max-width:880px}
.article-hero h1{
  font-size:clamp(25px,3.1vw,38px);
  line-height:1.32;font-weight:800;letter-spacing:-.4px;
  color:#fff;margin:16px 0 16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:#9ec4bf;margin-bottom:16px;
}
.article-meta .dotsep{width:4px;height:4px;border-radius:50%;background:rgba(158,196,191,.55)}
.article-hero__desc{
  font-size:15.5px;line-height:1.85;color:#b9d5d0;max-width:760px;
}
.live-strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:26px;padding:11px 16px;border-radius:12px;
  background:rgba(4,20,19,.72);
  border:1px solid rgba(122,196,187,.28);
  font-size:13.5px;color:#cfe6e2;
}
.live-strip strong{color:#fff;font-weight:700;letter-spacing:.4px}
.live-strip__dot{
  width:9px;height:9px;border-radius:50%;background:#4fd1c0;flex:none;
  box-shadow:0 0 0 4px rgba(79,209,192,.18);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.live-strip__time{font-variant-numeric:tabular-nums;font-weight:700;color:#ffe3b8}
.live-strip__link{margin-left:auto;color:#8fd8cc;font-weight:700;border-bottom:1px dashed rgba(143,216,204,.5);padding-bottom:1px;transition:color .2s ease}
.live-strip__link:hover{color:#fff;border-bottom-color:#fff}

/* ---------- sections ---------- */
.sec{padding:56px 0}
.sec--paper{background:var(--bg)}
.sec--white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec--tint{background:linear-gradient(180deg,#eef5f3 0%,#f6faf9 100%)}
.sec-head{max-width:720px;margin-bottom:30px}
.sec-head__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;letter-spacing:2px;color:var(--brand);
  text-transform:uppercase;margin-bottom:10px;
}
.sec-head__eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}
.sec-head h2{font-size:clamp(21px,2.4vw,28px);font-weight:800;letter-spacing:-.3px;color:var(--ink);line-height:1.4}
.sec-head p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- article card ---------- */
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:34px 38px 38px;
}
.article-body{font-size:16.5px;line-height:1.85;color:var(--ink-2)}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:23px;line-height:1.45;color:var(--ink);font-weight:800;
  margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:18.5px;line-height:1.5;color:var(--ink);font-weight:700;margin:26px 0 10px}
.article-body h4{font-size:16.5px;color:var(--brand-600);font-weight:700;margin:20px 0 8px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body ul li{list-style:disc;margin-bottom:8px}
.article-body ol li{list-style:decimal;margin-bottom:8px}
.article-body strong{color:var(--brand-600);font-weight:700}
.article-body em{color:var(--accent-dark);font-style:normal;font-weight:600}
.article-body img{border-radius:var(--radius);margin:22px 0;box-shadow:var(--shadow-sm)}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;
  background:var(--brand-100);color:var(--ink);
  border-left:4px solid var(--brand);
  border-radius:0 var(--radius) var(--radius) 0;
  font-size:15.5px;
}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:#f4f9f8;color:var(--ink);font-weight:700}
.article-body a{color:var(--brand-600);border-bottom:1px dashed rgba(14,111,104,.45);transition:color .2s ease}
.article-body a:hover{color:var(--accent-dark);border-bottom-color:var(--accent)}
.empty-state{text-align:center;padding:22px 0 6px}
.empty-state h2{font-size:22px;font-weight:800;color:var(--ink);margin:16px 0 10px}
.empty-state p{color:var(--muted);max-width:520px;margin:0 auto 22px;line-height:1.85}
.empty-state__icon{
  width:60px;height:60px;border-radius:16px;margin:0 auto;
  display:grid;place-items:center;background:var(--brand-100);color:var(--brand);
}
.empty-state__icon svg{width:28px;height:28px;stroke:currentColor;fill:none;stroke-width:1.7}

/* ---------- point cards ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.point-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.point-card__icon{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand);margin-bottom:14px;
}
.point-card__icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.point-card h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:8px}
.point-card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:14px}
.point-card .tag{font-size:12px}

/* ---------- spec block ---------- */
.spec-wrap{
  display:grid;grid-template-columns:.92fr 1.08fr;gap:34px;align-items:center;
}
.spec-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);border:1px solid var(--line);
}
.spec-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
.spec-figure:hover img{transform:scale(1.04)}
.spec-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 18px 14px;color:#fff;font-size:13.5px;font-weight:600;
  background:linear-gradient(180deg,rgba(4,20,19,0) 0%,rgba(4,20,19,.82) 100%);
}
.spec-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:24px 24px 18px;box-shadow:var(--shadow-sm);
}
.spec-panel h3{font-size:19px;font-weight:800;color:var(--ink);margin-bottom:6px}
.spec-panel > p{font-size:14.5px;color:var(--muted);margin-bottom:16px;line-height:1.8}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table th{
  text-align:left;font-size:12.5px;letter-spacing:.08em;color:var(--muted);
  font-weight:800;padding:10px 12px;border-bottom:1px solid var(--line);background:#fbfdfc;
}
.spec-table td{padding:13px 12px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top}
.spec-table td strong{color:var(--brand-600)}
.spec-table tbody tr{transition:background .2s ease}
.spec-table tbody tr:hover{background:rgba(230,242,240,.55)}
.spec-table tr:last-child td{border-bottom:0}

/* ---------- channel grid ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
  position:relative;display:block;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px 22px;
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card::after{
  content:"";position:absolute;left:22px;right:22px;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:0;transition:opacity .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.channel-card:hover::after{opacity:1}
.channel-card__icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand);margin-bottom:16px;
}
.channel-card__icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.channel-card h3{font-size:17.5px;font-weight:800;color:var(--ink);margin-bottom:9px}
.channel-card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:16px;min-height:52px}
.channel-card__more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-600)}
.channel-card__more svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .2s ease}
.channel-card:hover .channel-card__more svg{transform:translateX(4px)}

/* ---------- faq ---------- */
.faq{max-width:880px}
.faq__item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item[open]{border-color:#c9dedb;box-shadow:var(--shadow-sm)}
.faq__item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:17px 20px;font-size:15.5px;font-weight:700;color:var(--ink);
  min-height:44px;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:focus-visible{outline:3px solid rgba(232,163,61,.6);outline-offset:-3px}
.faq__mark{
  width:24px;height:24px;border-radius:7px;flex:none;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-600);
  font-size:12.5px;font-weight:800;
}
.faq__chev{margin-left:auto;width:16px;height:16px;stroke:var(--muted);fill:none;stroke-width:2;transition:transform .25s ease}
.faq__item[open] .faq__chev{transform:rotate(180deg)}
.faq__body{padding:0 20px 18px 58px;font-size:14.8px;line-height:1.85;color:var(--muted)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--radius-lg);
  background:var(--deep);color:#eaf6f4;
  padding:44px 40px;
  box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-4.webp') center/cover no-repeat;opacity:.3;
}
.cta-band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(6,30,28,.94) 42%,rgba(6,30,28,.58) 100%);
}
.cta-band__inner{display:flex;flex-wrap:wrap;align-items:center;gap:26px;justify-content:space-between}
.cta-band h2{font-size:clamp(21px,2.5vw,27px);font-weight:800;color:#fff;line-height:1.45;margin-bottom:10px}
.cta-band p{font-size:15px;color:#bcd6d2;line-height:1.8;max-width:560px}
.cta-band__form{display:flex;flex-wrap:wrap;gap:10px}
.cta-band__form input{
  min-height:46px;width:250px;padding:0 16px;border-radius:8px;
  border:1px solid rgba(180,224,218,.35);
  background:rgba(255,255,255,.1);color:#fff;font-size:14.5px;
}
.cta-band__form input::placeholder{color:rgba(200,230,226,.62)}
.cta-band__form input:focus{outline:3px solid rgba(232,163,61,.55);outline-offset:2px;border-color:rgba(232,163,61,.6)}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:#a9c6c2;padding:52px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:32px;border-top:1px solid rgba(122,196,187,.18);padding-top:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-col p{font-size:14px;line-height:1.85;color:#93b3af;max-width:360px}
.footer-col h4{font-size:14px;font-weight:800;color:#e6f2f0;letter-spacing:1px;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:14px;color:#9dbcb8;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(122,196,187,.18);padding-top:18px;
  font-size:13px;color:#7f9d99;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .point-grid,.channel-grid{grid-template-columns:repeat(2,1fr)}
  .spec-wrap{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:980px){
  .nav__toggle{display:inline-flex}
  .nav__cta{margin-left:0;margin-right:8px}
  .nav__links{
    position:absolute;top:64px;left:-22px;right:-22px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 22px 18px;display:none;box-shadow:var(--shadow-md);
    margin-left:0;
  }
  .nav__links.is-open{display:flex}
  .nav__link{width:100%;justify-content:flex-start;font-size:15px}
  .brand small{display:none}
}
@media (max-width:768px){
  .sec{padding:44px 0}
  .article-card{padding:24px 20px 26px}
  .article-body{font-size:16px}
  .article-body h2{font-size:20px}
  .cta-band{padding:32px 22px}
  .cta-band__form input{width:100%}
  .cta-band__form{width:100%}
  .cta-band__form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .live-strip__link{margin-left:0}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .point-grid,.channel-grid{grid-template-columns:1fr}
  .article-hero__inner{padding:16px 0 36px}
  .article-meta{font-size:12.8px}
  .faq__body{padding-left:20px}
  .footer-bottom{flex-direction:column}
  .nav__links{left:-16px;right:-16px;padding:12px 16px 18px}
}

/* roulang page: category2 */
:root{
 --brand:#0e6f68;
 --brand-600:#0b5a55;
 --brand-100:#e6f2f0;
 --accent:#e8a33d;
 --accent-dark:#c9862a;
 --ink:#0e1c1b;
 --ink-2:#31474a;
 --muted:#5f7774;
 --bg:#f5f8f7;
 --surface:#ffffff;
 --line:#e2eae8;
 --deep:#07211f;
 --radius:12px;
 --radius-lg:18px;
 --shadow-sm:0 1px 2px rgba(11,42,40,.06),0 4px 14px rgba(11,42,40,.05);
 --shadow-md:0 10px 30px rgba(11,42,40,.10);
 --shadow-lg:0 22px 56px rgba(11,42,40,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0;letter-spacing:-.2px;color:var(--ink)}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
::selection{background:rgba(232,163,61,.32)}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.95);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(11,42,40,.09)}
.nav{display:flex;align-items:center;gap:16px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17.5px;letter-spacing:.3px;color:var(--ink);white-space:nowrap}
.brand__mark{
 width:34px;height:34px;border-radius:10px;flex:none;
 background:linear-gradient(140deg,#128a80,#0b5a55);
 display:grid;place-items:center;color:#fff;
 box-shadow:0 6px 16px rgba(14,111,104,.3);
}
.brand__mark svg{width:19px;height:19px}
.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:1.6px;color:var(--muted);line-height:1.2}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
 display:inline-flex;align-items:center;gap:7px;
 padding:8px 13px;border-radius:10px;
 font-size:14.5px;font-weight:600;color:var(--ink-2);
 transition:background .2s ease,color .2s ease,box-shadow .2s ease;
 min-height:40px;
}
.nav__link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;flex:none}
.nav__link:hover{background:var(--brand-100);color:var(--brand-600)}
.nav__link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,111,104,.26)}
.nav__link:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:2px}
.nav__cta{margin-left:10px}
.nav__toggle{
 display:none;margin-left:auto;align-items:center;justify-content:center;
 width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
 background:#fff;cursor:pointer;color:var(--brand-600);
}
.nav__toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:0 20px;border-radius:8px;
 font-weight:700;font-size:15px;line-height:1;letter-spacing:.2px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(14,111,104,.26)}
.btn--primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 14px 28px rgba(14,111,104,.32)}
.btn--accent{background:var(--accent);color:#241708}
.btn--accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn--ghost{border-color:rgba(180,224,218,.45);color:#eaf6f4;background:rgba(255,255,255,.07)}
.btn--ghost:hover{background:rgba(255,255,255,.17);transform:translateY(-2px)}
.btn--outline{border-color:#cfe0dd;color:var(--brand-600);background:#fff}
.btn--outline:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:3px}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- tags ---------- */
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 11px;border-radius:999px;
 font-size:12.5px;font-weight:700;letter-spacing:.2px;
 background:var(--brand-100);color:var(--brand-600);white-space:nowrap;
}
.tag--amber{background:#fdf1de;color:#a9711f}
.tag--dark{background:rgba(122,196,187,.16);color:#8fd8cc}

/* ---------- category hero ---------- */
.cat-hero{position:relative;isolation:isolate;overflow:hidden;color:#eaf6f4;background:var(--deep)}
.cat-hero::before{
 content:"";position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 opacity:.32;
}
.cat-hero::after{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(108deg,rgba(6,30,28,.96) 30%,rgba(6,30,28,.62) 100%);
}
.cat-hero__inner{
 display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
 padding:64px 0 68px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:#8fbdb7;margin-bottom:18px}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.5}
.cat-hero h1{
 font-size:clamp(26px,3.3vw,40px);line-height:1.3;font-weight:800;
 color:#fff;margin:0 0 18px;
}
.cat-hero__lead{font-size:15.5px;line-height:1.85;color:#bcd6d2;margin:0 0 24px;max-width:600px}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.cat-hero__tags{display:flex;flex-wrap:wrap;gap:9px}
.cat-hero__tags .tag{background:rgba(122,196,187,.14);color:#9fe0d6;border:1px solid rgba(122,196,187,.26)}

.quick{
 background:rgba(4,20,19,.82);
 border:1px solid rgba(122,196,187,.24);
 border-radius:var(--radius-lg);
 padding:20px;box-shadow:var(--shadow-lg);
 backdrop-filter:blur(6px);
}
.quick__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;padding-bottom:13px;border-bottom:1px solid rgba(122,196,187,.18)}
.quick__head h2{font-size:13px;letter-spacing:1.6px;color:#8fc4bd;font-weight:700;margin:0}
.quick__head span{font-size:11.5px;color:#6f9a95}
.quick__grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.quick__item{
 display:block;padding:14px 13px;border-radius:11px;
 background:rgba(255,255,255,.045);
 border:1px solid rgba(122,196,187,.16);
 transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.quick__item:hover{background:rgba(122,196,187,.16);border-color:rgba(122,196,187,.4);transform:translateY(-3px)}
.quick__item svg{width:20px;height:20px;stroke:#8fd8cc;fill:none;stroke-width:1.7;margin-bottom:8px}
.quick__item b{display:block;font-size:14px;color:#fff;font-weight:700;margin-bottom:2px}
.quick__item small{display:block;font-size:11.5px;color:#87a8a4;letter-spacing:.3px}

/* ---------- stat strip ---------- */
.stat-strip{background:#fff;border-bottom:1px solid var(--line)}
.stat-strip__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{position:relative;padding:26px 20px;text-align:left}
.stat + .stat::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:1px;background:var(--line)}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--brand);letter-spacing:-.5px;line-height:1.2}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- sections ---------- */
.section{padding:70px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{
 font-size:clamp(21px,2.3vw,29px);font-weight:800;line-height:1.35;
 display:flex;align-items:center;gap:12px;margin:0 0 8px;
}
.section-head h2::before{content:"";width:6px;height:26px;border-radius:3px;background:linear-gradient(180deg,var(--brand),var(--accent));flex:none}
.section-head p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.8;max-width:640px}

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

.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2de}

/* ---------- rate cards ---------- */
.rate-card{padding:22px;display:flex;flex-direction:column;gap:12px}
.rate-card__top{display:flex;align-items:flex-start;gap:12px}
.rate-card__icon{
 width:38px;height:38px;border-radius:10px;flex:none;
 background:var(--brand-100);color:var(--brand-600);
 display:grid;place-items:center;
}
.rate-card__icon svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7}
.rate-card h3{font-size:16px;font-weight:800;margin:0 0 2px}
.rate-card__rate{font-size:12.5px;font-weight:700;color:var(--accent-dark);letter-spacing:.4px}
.rate-card p{font-size:14px;line-height:1.78;color:var(--ink-2);margin:0}
.rate-card__meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto;padding-top:4px}

/* ---------- skill cards ---------- */
.skill-card{overflow:hidden;display:flex;flex-direction:column}
.skill-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;background:#dfeae8}
.skill-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.skill-card:hover .skill-card__media img{transform:scale(1.05)}
.skill-card__media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(7,33,31,0) 45%,rgba(7,33,31,.55) 100%);
}
.skill-card__badge{
 position:absolute;left:14px;bottom:12px;z-index:2;
 font-size:12px;font-weight:700;color:#fff;letter-spacing:.4px;
 background:rgba(7,33,31,.62);border:1px solid rgba(180,224,218,.4);
 padding:4px 10px;border-radius:999px;backdrop-filter:blur(4px);
}
.skill-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px}
.skill-card__body h3{font-size:17px;font-weight:800}
.skill-card__body p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0}
.skill-card__facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.fact{
 display:inline-flex;align-items:center;gap:5px;
 font-size:12.5px;color:var(--muted);font-weight:600;
 background:#f3f8f7;border:1px solid var(--line);
 border-radius:8px;padding:3px 9px;
}
.fact b{color:var(--brand-600);font-weight:800}

/* ---------- timeline ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:6px}
.timeline::before{
 content:"";position:absolute;left:12px;right:12px;top:23px;height:2px;
 background:linear-gradient(90deg,var(--brand),rgba(232,163,61,.85));
 opacity:.28;
}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2de}
.step__num{
 position:absolute;top:-14px;left:16px;
 width:30px;height:30px;border-radius:50%;
 background:var(--brand);color:#fff;font-size:13px;font-weight:800;
 display:grid;place-items:center;box-shadow:0 6px 16px rgba(14,111,104,.3);
}
.step h3{font-size:15.5px;font-weight:800;margin:12px 0 6px}
.step span.step__time{display:block;font-size:12px;font-weight:700;color:var(--accent-dark);letter-spacing:.5px;margin-bottom:8px}
.step p{font-size:13.8px;line-height:1.75;color:var(--ink-2);margin:0}

/* ---------- scene cards ---------- */
.scene{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{overflow:hidden;display:flex;flex-direction:column}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.scene-card:hover img{transform:scale(1.05)}
.scene-card__body{padding:20px;display:flex;flex-direction:column;gap:10px}
.scene-card__body h3{font-size:16.5px;font-weight:800}
.scene-card__body p{font-size:14px;line-height:1.78;color:var(--ink-2);margin:0}
.scene-card__list{display:flex;flex-direction:column;gap:7px;margin-top:2px}
.scene-card__list li{position:relative;padding-left:16px;font-size:13.5px;color:var(--muted)}
.scene-card__list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- mistakes ---------- */
.split{display:grid;grid-template-columns:.86fr 1.14fr;gap:44px;align-items:start}
.split__aside h2{font-size:clamp(21px,2.3vw,29px);font-weight:800;line-height:1.35;margin:0 0 14px}
.split__aside p{font-size:14.5px;line-height:1.85;color:var(--muted);margin:0 0 18px}
.mistake-list{display:flex;flex-direction:column;gap:14px}
.mistake{
 display:flex;gap:14px;align-items:flex-start;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:18px 20px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mistake:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9e2de}
.mistake__tag{
 flex:none;width:28px;height:28px;border-radius:8px;
 background:#fdf1de;color:#a9711f;display:grid;place-items:center;font-weight:800;font-size:13px;
}
.mistake h3{font-size:15px;font-weight:800;margin:0 0 4px}
.mistake p{font-size:13.8px;line-height:1.75;color:var(--ink-2);margin:0}

/* ---------- data band ---------- */
.data-band{
 position:relative;isolation:isolate;overflow:hidden;
 background:var(--deep);color:#e6f4f1;padding:62px 0;
}
.data-band::before{
 content:"";position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-5.webp') center/cover no-repeat;opacity:.22;
}
.data-band::after{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(100deg,rgba(6,30,28,.95),rgba(6,30,28,.72));
}
.data-band .section-head h2{color:#fff}
.data-band .section-head p{color:#a9c8c3}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.data-cell{
 background:rgba(255,255,255,.055);
 border:1px solid rgba(122,196,187,.22);
 border-radius:var(--radius);padding:22px 20px;
 transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.data-cell:hover{background:rgba(122,196,187,.14);transform:translateY(-3px);border-color:rgba(122,196,187,.42)}
.data-cell b{display:block;font-size:28px;font-weight:800;color:#fff;letter-spacing:-.6px;line-height:1.2}
.data-cell b em{font-style:normal;font-size:14px;color:var(--accent);margin-left:3px}
.data-cell span{display:block;font-size:13px;color:#9dbdb8;margin-top:6px;line-height:1.65}

/* ---------- post list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
 display:flex;flex-direction:column;gap:9px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;box-shadow:var(--shadow-sm);min-height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2de}
.post-card__cat{font-size:12px;font-weight:700;color:var(--brand-600);letter-spacing:.4px}
.post-card h3{font-size:15.5px;font-weight:800;line-height:1.55;margin:0}
.post-card p{
 font-size:13.8px;line-height:1.75;color:var(--muted);margin:0;
 display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__date{font-size:12.5px;color:#93a9a6;margin-top:auto;padding-top:6px}
.empty-tip{
 background:#f3f8f7;border:1px dashed #cfe0dd;border-radius:var(--radius);
 padding:26px;text-align:center;color:var(--muted);font-size:14px;
}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto}
.faq details{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:#c9e2de;box-shadow:var(--shadow-md)}
.faq summary{
 cursor:pointer;list-style:none;padding:18px 52px 18px 20px;position:relative;
 font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
 font-size:20px;font-weight:400;color:var(--brand);line-height:1;
 transition:transform .2s ease;
}
.faq details[open] summary::after{content:"−"}
.faq summary:focus-visible{outline:3px solid rgba(232,163,61,.6);outline-offset:-3px}
.faq p{padding:0 20px 18px;margin:0;font-size:14px;line-height:1.85;color:var(--ink-2)}

/* ---------- cta ---------- */
.cta-band{
 position:relative;isolation:isolate;overflow:hidden;
 background:linear-gradient(120deg,#0b5a55,#0e6f68 52%,#0a4a46);
 color:#eaf6f4;padding:58px 0;
}
.cta-band::after{
 content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
 background:radial-gradient(circle,rgba(232,163,61,.32),rgba(232,163,61,0) 68%);z-index:-1;
}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(21px,2.4vw,29px);font-weight:800;color:#fff;line-height:1.4;margin:0 0 12px}
.cta-inner p{font-size:14.5px;line-height:1.85;color:#bfe0da;margin:0}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.cta-form input{
 flex:1 1 220px;min-height:46px;border-radius:8px;
 border:1px solid rgba(191,224,218,.4);background:rgba(255,255,255,.1);
 color:#fff;padding:0 16px;font-size:14.5px;outline:none;
 transition:border-color .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:#a7c9c3}
.cta-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.16)}
.cta-tip{display:block;font-size:12.5px;color:#a7c9c3;margin-top:10px;min-height:18px}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:#b9d3ce;padding:56px 0 26px}
.footer-grid{
 display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;
 padding-bottom:34px;border-bottom:1px solid rgba(122,196,187,.18);
}
.footer-brand{
 display:flex;align-items:center;gap:10px;
 font-size:17px;font-weight:800;color:#fff;margin-bottom:14px;
}
.footer-brand .brand__mark{width:32px;height:32px}
.footer-col p{font-size:14px;line-height:1.85;margin:0;color:#9dbdb8;max-width:380px}
.footer-col h4{font-size:13px;letter-spacing:1.4px;color:#7fc0b8;margin:0 0 14px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#c4dbd7;width:fit-content;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-links a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.footer-bottom{
 display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
 padding-top:20px;font-size:12.5px;color:#7fa39e;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .cat-hero__inner{grid-template-columns:1fr;gap:34px;padding:52px 0 56px}
 .quick__grid{grid-template-columns:repeat(4,1fr)}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .timeline{grid-template-columns:repeat(2,1fr);row-gap:34px}
 .timeline::before{display:none}
 .scene{grid-template-columns:repeat(2,1fr)}
 .post-grid{grid-template-columns:repeat(2,1fr)}
 .data-grid{grid-template-columns:repeat(2,1fr)}
 .split{grid-template-columns:1fr;gap:26px}
 .cta-inner{grid-template-columns:1fr;gap:26px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
 .nav__toggle{display:inline-flex}
 .nav__cta{display:none}
 .nav__links{
  position:absolute;top:64px;left:0;right:0;z-index:70;
  flex-direction:column;align-items:stretch;gap:6px;margin:0;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 18px 36px rgba(11,42,40,.14);
  padding:14px 22px 18px;display:none;
 }
 .nav__links.is-open{display:flex}
 .nav__link{justify-content:flex-start;min-height:44px}
 .stat-strip__grid{grid-template-columns:repeat(2,1fr)}
 .stat + .stat::before{display:none}
 .stat{border-top:1px solid var(--line);padding:20px 12px}
 .stat:nth-child(1),.stat:nth-child(2){border-top:0}
}
@media (max-width:768px){
 .section{padding:52px 0}
 .section-head{margin-bottom:24px}
 .grid-2,.grid-3,.grid-4,.scene,.post-grid,.data-grid{grid-template-columns:1fr}
 .quick__grid{grid-template-columns:1fr 1fr}
 .timeline{grid-template-columns:1fr;row-gap:30px}
 .footer-grid{grid-template-columns:1fr;gap:28px}
 .footer-bottom{flex-direction:column;gap:6px}
 .cat-hero__actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
 .container{padding:0 16px}
 .brand{font-size:15.5px}
 .brand small{font-size:10px;letter-spacing:1.2px}
 .quick__grid{grid-template-columns:1fr}
 .stat b{font-size:22px}
 .data-cell b{font-size:24px}
 .rate-card,.skill-card__body,.scene-card__body,.post-card{padding:18px}
 .faq summary{font-size:14.5px;padding:16px 46px 16px 16px}
 .faq p{padding:0 16px 16px}
 .cta-form input{flex:1 1 100%}
 .cta-form .btn{width:100%}
}

/* roulang page: category3 */
:root{
 --brand:#0e6f68;
 --brand-600:#0b5a55;
 --brand-100:#e6f2f0;
 --accent:#e8a33d;
 --accent-dark:#c9862a;
 --ink:#0e1c1b;
 --ink-2:#31474a;
 --muted:#5f7774;
 --bg:#f5f8f7;
 --surface:#ffffff;
 --line:#e2eae8;
 --deep:#07211f;
 --radius:12px;
 --radius-lg:18px;
 --shadow-sm:0 1px 2px rgba(11,42,40,.06),0 4px 14px rgba(11,42,40,.05);
 --shadow-md:0 10px 30px rgba(11,42,40,.10);
 --shadow-lg:0 22px 56px rgba(11,42,40,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
[id]{scroll-margin-top:84px}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.95);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(11,42,40,.09)}
.nav{display:flex;align-items:center;gap:16px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17.5px;letter-spacing:.3px;color:var(--ink);white-space:nowrap}
.brand__mark{
 width:34px;height:34px;border-radius:10px;flex:none;
 background:linear-gradient(140deg,#128a80,#0b5a55);
 display:grid;place-items:center;color:#fff;
 box-shadow:0 6px 16px rgba(14,111,104,.3);
}
.brand__mark svg{width:19px;height:19px}
.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:1.6px;color:var(--muted);line-height:1.2}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
 display:inline-flex;align-items:center;gap:7px;
 padding:8px 13px;border-radius:10px;
 font-size:14.5px;font-weight:600;color:var(--ink-2);
 transition:background .2s ease,color .2s ease,box-shadow .2s ease;
 min-height:40px;
}
.nav__link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;flex:none}
.nav__link:hover{background:var(--brand-100);color:var(--brand-600)}
.nav__link.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(14,111,104,.26)}
.nav__link:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:2px}
.nav__cta{margin-left:10px}
.nav__toggle{
 display:none;margin-left:auto;align-items:center;justify-content:center;
 width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
 background:#fff;cursor:pointer;color:var(--brand-600);
}
.nav__toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:44px;padding:0 20px;border-radius:8px;
 font-weight:700;font-size:15px;line-height:1;letter-spacing:.2px;
 border:1px solid transparent;cursor:pointer;
 transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(14,111,104,.26)}
.btn--primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 14px 28px rgba(14,111,104,.32)}
.btn--accent{background:var(--accent);color:#241708}
.btn--accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn--ghost{border-color:rgba(180,224,218,.45);color:#eaf6f4;background:rgba(255,255,255,.07)}
.btn--ghost:hover{background:rgba(255,255,255,.17);transform:translateY(-2px)}
.btn--outline{border-color:#cfe0dd;color:var(--brand-600);background:#fff}
.btn--outline:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:3px}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- tags ---------- */
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 11px;border-radius:999px;
 font-size:12.5px;font-weight:700;letter-spacing:.2px;
 background:var(--brand-100);color:var(--brand-600);white-space:nowrap;
}
.tag--amber{background:#fdf1de;color:#a9711f}
.tag--dark{background:rgba(122,196,187,.16);color:#8fd8cc}

/* ---------- page hero ---------- */
.page-hero{
 position:relative;isolation:isolate;overflow:hidden;
 background:var(--deep);color:#eaf6f4;
 padding:32px 0 64px;
}
.page-hero::before{
 content:"";position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
 opacity:.32;
}
.page-hero::after{
 content:"";position:absolute;inset:0;z-index:-1;
 background:linear-gradient(108deg,rgba(6,30,28,.96) 32%,rgba(6,30,28,.58) 100%);
}
.crumb{
 display:flex;align-items:center;gap:8px;flex-wrap:wrap;
 font-size:13px;color:#8fb5b0;margin-bottom:28px;
}
.crumb a{color:#a8cfc9;transition:color .2s ease}
.crumb a:hover{color:var(--accent)}
.page-hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.page-hero__eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;font-weight:700;letter-spacing:2px;color:#8fd8cc;
 margin-bottom:16px;
}
.page-hero__eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--accent)}
.page-hero h1{
 margin:0 0 18px;color:#fff;
 font-size:clamp(25px,3.1vw,38px);line-height:1.3;font-weight:800;letter-spacing:-.3px;
}
.page-hero__lead{margin:0 0 24px;max-width:640px;font-size:15.5px;line-height:1.85;color:#b9d5d0}
.page-hero__tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.page-hero__tags .tag{background:rgba(122,196,187,.14);color:#9fe0d6;border:1px solid rgba(122,196,187,.26)}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:12px}
.zone-card{
 background:rgba(4,20,19,.84);
 border:1px solid rgba(122,196,187,.26);
 border-radius:16px;padding:22px;
 box-shadow:var(--shadow-lg);
 backdrop-filter:blur(6px);
}
.zone-card__head{
 display:flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:1.6px;color:#8fd8cc;
 padding-bottom:12px;margin-bottom:6px;
 border-bottom:1px solid rgba(122,196,187,.2);
}
.zone-card__head::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.zone-list{list-style:none;margin:0 0 14px;padding:0}
.zone-item{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:11px 0;border-bottom:1px dashed rgba(122,196,187,.22);
}
.zone-item:last-child{border-bottom:0}
.zone-item__name{font-size:14.5px;font-weight:600;color:#eaf6f4}
.zone-item__state{
 font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
 background:rgba(122,196,187,.16);color:#8fd8cc;white-space:nowrap;
}
.zone-item__state--hot{background:rgba(232,163,61,.2);color:#f0c27f}
.zone-item__state--off{background:rgba(255,255,255,.08);color:#93b3ae}
.zone-card__note{margin:0;font-size:12.5px;line-height:1.8;color:#8fb5b0}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section--alt{background:#eef4f2}
.section--surface{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{
 margin:0 0 10px;
 font-size:clamp(21px,2.4vw,29px);line-height:1.35;font-weight:800;color:var(--ink);
}
.section-head h2 span{color:var(--brand)}
.section-head p{margin:0;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tl{
 position:relative;background:var(--surface);
 border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 20px 22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl::before{
 content:"";position:absolute;left:20px;right:20px;top:0;height:3px;
 border-radius:0 0 3px 3px;
 background:linear-gradient(90deg,var(--brand),var(--accent));
}
.tl:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.tl__num{
 display:inline-flex;align-items:center;justify-content:center;
 width:30px;height:30px;border-radius:9px;
 background:var(--brand-100);color:var(--brand-600);
 font-weight:800;font-size:14px;margin-bottom:12px;
}
.tl h3{margin:0 0 8px;font-size:16px;font-weight:700}
.tl p{margin:0;font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- type cards ---------- */
.type-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.type-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.type-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.type-card__icon{
 width:42px;height:42px;border-radius:12px;
 background:var(--brand-100);color:var(--brand-600);
 display:grid;place-items:center;margin-bottom:14px;
}
.type-card__icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.type-card h3{margin:0 0 8px;font-size:16.5px;font-weight:700}
.type-card p{margin:0 0 14px;font-size:14px;line-height:1.8;color:var(--muted)}
.type-card .tag{margin-top:auto}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split__media{
 border-radius:var(--radius-lg);overflow:hidden;
 border:1px solid var(--line);box-shadow:var(--shadow-md);
}
.split__media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split--reverse .split__media{order:2}
.num-list{list-style:none;margin:0;padding:0;display:grid;gap:15px;counter-reset:step}
.num-list li{
 position:relative;padding-left:46px;
 font-size:14.5px;line-height:1.8;color:var(--ink-2);
}
.num-list li::before{
 counter-increment:step;content:counter(step);
 position:absolute;left:0;top:1px;
 width:30px;height:30px;border-radius:9px;
 background:var(--brand);color:#fff;
 font-size:13px;font-weight:800;
 display:grid;place-items:center;
}
.num-list strong{color:var(--ink);font-weight:700}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 20px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.step__idx{font-size:12px;font-weight:800;letter-spacing:1.6px;color:var(--accent-dark);margin-bottom:10px}
.step h3{margin:0 0 8px;font-size:15.5px;font-weight:700}
.step p{margin:0;font-size:13.8px;line-height:1.8;color:var(--muted)}

/* ---------- stat band ---------- */
.stat-band{
 position:relative;overflow:hidden;isolation:isolate;
 background:var(--deep);color:#eaf6f4;
 border-radius:var(--radius-lg);
 padding:38px 30px;
 display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
 box-shadow:var(--shadow-md);
}
.stat-band::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:url('/assets/images/backpic/back-6.webp') center/cover no-repeat;
 opacity:.2;
}
.stat-band__item{text-align:left}
.stat-band__num{font-size:clamp(24px,2.6vw,32px);font-weight:800;color:#fff;line-height:1.2;letter-spacing:-.5px}
.stat-band__num small{font-size:14px;font-weight:700;margin-left:4px;color:var(--accent)}
.stat-band__label{margin-top:8px;font-size:13.5px;color:#a8c8c3;line-height:1.7}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{
 background:var(--surface);border:1px solid var(--line);border-radius:12px;
 padding:16px 20px;box-shadow:var(--shadow-sm);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:#c4dcd8;box-shadow:var(--shadow-md)}
.faq summary{
 cursor:pointer;list-style:none;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 font-weight:700;font-size:15.5px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:19px;line-height:1;color:var(--brand);font-weight:700;flex:none}
.faq details[open] summary::after{content:"−"}
.faq summary:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:4px;border-radius:6px}
.faq p{margin:12px 0 0;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.news-card{
 display:flex;flex-direction:column;gap:10px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dedb}
.news-card__cat{
 align-self:flex-start;
 font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
 background:var(--brand-100);color:var(--brand-600);
}
.news-card h3{margin:0;font-size:16px;line-height:1.55;font-weight:700}
.news-card p{
 margin:0;font-size:14px;line-height:1.8;color:var(--muted);
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__time{font-size:12.5px;color:#8aa3a0;margin-top:auto}
.empty{
 padding:26px;border:1px dashed var(--line);border-radius:12px;
 color:var(--muted);text-align:center;background:var(--surface);font-size:14.5px;
}

/* ---------- cta band ---------- */
.cta-band{
 position:relative;overflow:hidden;isolation:isolate;
 background:var(--deep);color:#eaf6f4;
 border-radius:var(--radius-lg);
 padding:54px 40px;text-align:center;
 box-shadow:var(--shadow-md);
}
.cta-band::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:url('/assets/images/backpic/back-8.webp') center/cover no-repeat;
 opacity:.22;
}
.cta-band h2{
 margin:0 0 12px;color:#fff;
 font-size:clamp(21px,2.5vw,30px);line-height:1.35;font-weight:800;
}
.cta-band p{margin:0 auto 26px;max-width:660px;font-size:15px;line-height:1.85;color:#b9d5d0}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:#b8cfcb;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand{
 display:flex;align-items:center;gap:10px;
 color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;
}
.footer-col p{font-size:14px;line-height:1.85;color:#9db8b4;margin:0}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 14px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#a8c2be;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
 border-top:1px solid rgba(122,196,187,.18);
 padding:18px 0 22px;
 display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
 font-size:13px;color:#7f9c98;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .page-hero__grid{grid-template-columns:1fr;gap:34px}
 .timeline{grid-template-columns:repeat(2,1fr)}
 .steps{grid-template-columns:repeat(2,1fr)}
 .stat-band{grid-template-columns:repeat(2,1fr)}
 .split{grid-template-columns:1fr;gap:28px}
 .split--reverse .split__media{order:0}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
 .nav__toggle{display:inline-flex}
 .nav__cta{display:none}
 .nav__links{
  position:absolute;top:64px;left:0;right:0;
  display:none;flex-direction:column;align-items:stretch;gap:4px;
  margin:0;padding:12px 16px 18px;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 18px 34px rgba(11,42,40,.12);
 }
 .nav__links.is-open{display:flex}
 .nav__link{justify-content:flex-start;width:100%}
}
@media (max-width:768px){
 .section{padding:56px 0}
 .page-hero{padding:24px 0 52px}
 .cta-band{padding:42px 24px}
 .stat-band{padding:30px 22px}
 .footer-grid{gap:30px}
}
@media (max-width:520px){
 .timeline{grid-template-columns:1fr}
 .steps{grid-template-columns:1fr}
 .stat-band{grid-template-columns:1fr;gap:20px}
 .footer-grid{grid-template-columns:1fr}
 .brand{font-size:15.5px}
 .brand small{font-size:10px;letter-spacing:1.2px}
 .section{padding:46px 0}
 .news-grid{grid-template-columns:1fr}
 .btn{width:100%}
 .cta-band__actions .btn{width:100%}
}