/* roulang page: index */
:root{
  --green-900:#0E2A23;
  --green-800:#133428;
  --green-700:#1B4334;
  --lime:#D8FF3E;
  --lime-soft:#E9F2DA;
  --orange:#FF6A2B;
  --bg:#F5F6F2;
  --white:#FFFFFF;
  --text:#1B241F;
  --text-2:#5C6B63;
  --text-3:#A8B2AB;
  --line:#E2E6DE;
  --line-dark:rgba(255,255,255,.12);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-1:0 2px 8px rgba(14,42,35,.06);
  --shadow-2:0 10px 24px rgba(14,42,35,.12);
  --shadow-3:0 16px 40px rgba(0,0,0,.18);
  --container:1200px;
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.75;letter-spacing:.01em}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.3;letter-spacing:-.01em}
:focus-visible{outline:3px solid rgba(216,255,62,.45);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media(max-width:991px){.container{padding:0 24px}}
@media(max-width:767px){.container{padding:0 16px}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;letter-spacing:.02em;padding:12px 22px;border:1.5px solid transparent;transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);white-space:nowrap}
.btn--primary{background:var(--lime);color:var(--green-900);box-shadow:0 8px 20px rgba(216,255,62,.22)}
.btn--primary:hover{background:#e3ff66;transform:translateY(-2px);box-shadow:0 12px 26px rgba(216,255,62,.32)}
.btn--primary:active{transform:translateY(1px)}
.btn--outline-light{border-color:rgba(255,255,255,.55);color:#fff}
.btn--outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn--outline-dark{border-color:var(--green-900);color:var(--green-900)}
.btn--outline-dark:hover{background:rgba(14,42,35,.08);transform:translateY(-2px)}
.btn--ghost-light{color:rgba(255,255,255,.82);padding:10px 14px;font-weight:600}
.btn--ghost-light:hover{color:var(--lime)}
.btn--block{width:100%}
@media(max-width:767px){.btn{padding:13px 18px}}
@media(max-width:520px){.btn{width:100%}}

/* ---------- badges / labels ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--radius-badge);padding:4px 10px;font-size:12px;font-weight:600;line-height:1.5}
.badge--orange{background:var(--orange);color:#fff}
.badge--lime{background:var(--lime);color:var(--green-900)}
.badge--soft{background:rgba(216,255,62,.14);color:var(--lime);border:1px solid rgba(216,255,62,.3)}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--lime);background:rgba(216,255,62,.2);border:1px solid rgba(216,255,62,.35);border-radius:999px;padding:6px 14px;letter-spacing:.04em}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--green-900);transition:gap var(--ease),color var(--ease)}
.link-arrow i{font-size:12px;transition:transform var(--ease)}
.link-arrow:hover{gap:10px}
.link-arrow:hover i{transform:translateX(2px)}
.link-arrow--lime{color:var(--lime)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--green-900);border-bottom:3px solid var(--lime);transition:border-color var(--ease),box-shadow var(--ease)}
.site-header.is-scrolled{border-bottom-width:1px;box-shadow:0 10px 28px rgba(0,0,0,.28)}
.header__inner{display:flex;align-items:center;gap:26px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--green-900);display:grid;place-items:center;font-weight:800;font-size:17px;letter-spacing:-.06em;flex:0 0 34px}
.logo__text{color:#fff;font-weight:800;font-size:17px;white-space:nowrap}
.logo__accent{color:var(--lime)}
.nav{margin-left:6px}
.nav__list{display:flex;align-items:center;gap:26px}
.nav__link{position:relative;display:inline-block;padding:9px 0;color:rgba(255,255,255,.86);font-size:15px;font-weight:600;transition:color .18s ease}
.nav__link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.nav__link:hover{color:var(--lime)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--lime)}
.nav__link.is-active::after{transform:scaleX(1)}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.mega-wrap{position:relative}
.mega{position:absolute;right:0;top:calc(100% + 16px);width:760px;background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-3);padding:24px;display:grid;grid-template-columns:1fr 1fr 1.25fr;gap:24px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease;z-index:75}
.mega.is-open{opacity:1;visibility:visible;transform:translateY(0)}
@media(hover:hover){.mega-wrap:hover .mega{opacity:1;visibility:visible;transform:translateY(0)}}
.mega__title{font-size:14px;font-weight:700;color:var(--green-900);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.mega__links li+li{margin-top:10px}
.mega__links a{font-size:14px;color:var(--text-2);display:flex;align-items:center;justify-content:space-between;transition:color var(--ease),transform var(--ease)}
.mega__links a:hover{color:var(--green-900);transform:translateX(3px)}
.mega__links a i{font-size:11px;color:var(--text-3)}
.mega__posts li+li{margin-top:12px}
.mega__posts a{display:block;font-size:14px;color:var(--text);font-weight:600;line-height:1.5;transition:color var(--ease)}
.mega__posts a:hover{color:var(--orange)}
.mega__posts span{display:block;font-size:12px;color:var(--text-3);margin-top:2px}
.mega__cards{display:grid;gap:12px}
.mega__card{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:10px;transition:box-shadow var(--ease),transform var(--ease)}
.mega__card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.mega__card img{width:64px;height:48px;flex:0 0 64px;border-radius:8px;object-fit:cover;background:#E8EBE4}
.mega__card strong{display:block;font-size:14px;font-weight:700}
.mega__card small{font-size:12px;color:var(--text-2)}
.burger{display:none;width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.09);flex-direction:column;justify-content:center;align-items:center;gap:5px;transition:background var(--ease)}
.burger:hover{background:rgba(255,255,255,.16)}
.burger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{position:fixed;inset:0;background:rgba(14,42,35,.6);opacity:0;visibility:hidden;transition:.25s;z-index:64}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--green-900);color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0;background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;opacity:.18}
.hero__veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,42,35,.6) 0%,rgba(14,42,35,.94) 100%)}
.hero__deco{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero__deco i{position:absolute;display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(216,255,62,.5),transparent)}
.hero__deco i:nth-child(1){width:620px;top:22%;left:-80px;transform:rotate(-13deg)}
.hero__deco i:nth-child(2){width:480px;bottom:16%;right:-60px;transform:rotate(-13deg)}
.hero__deco i:nth-child(3){width:300px;top:62%;left:38%;transform:rotate(-13deg);opacity:.6}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:56px;align-items:center;padding-top:84px;padding-bottom:96px}
.hero h1{font-size:48px;font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-top:22px}
.hero h1 .hl{color:var(--lime)}
.hero__sub{font-size:17px;line-height:1.75;color:rgba(255,255,255,.78);margin-top:20px;max-width:540px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.hero__note{font-size:13px;color:rgba(255,255,255,.55);margin-top:20px;display:flex;align-items:center;gap:8px}
.hero__note i{color:var(--lime)}
.hero__visual{position:relative}
.hero__visual img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;background:#E8EBE4;box-shadow:0 24px 60px rgba(0,0,0,.45)}
.stat-card{position:absolute;right:-24px;bottom:-34px;background:#fff;color:var(--text);border-radius:var(--radius-card);padding:18px 24px;display:flex;gap:28px;box-shadow:0 20px 44px rgba(0,0,0,.35)}
.stat__num{font-size:24px;font-weight:800;color:var(--green-900);letter-spacing:-.02em;line-height:1.2}
.stat__num em{font-style:normal;color:var(--orange);font-size:15px;font-weight:700;margin-left:2px}
.stat__label{font-size:12px;color:var(--text-2);white-space:nowrap}

/* ---------- metrics strip ---------- */
.metrics{background:var(--white);border-bottom:1px solid var(--line)}
.metrics__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:44px 0}
.metric__num{font-size:32px;font-weight:800;color:var(--green-900);letter-spacing:-.02em;line-height:1.15}
.metric__num span{font-size:16px;color:var(--orange);margin-left:2px}
.metric__label{font-size:14px;color:var(--text-2);margin-top:4px}

/* ---------- section basics ---------- */
.section{padding:88px 0}
.section--white{background:var(--white)}
.section--dark{background:var(--green-900);color:#fff}
.section__head{max-width:720px}
.section__head--center{margin:0 auto;text-align:center}
.section__eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--orange);text-transform:uppercase}
.section--dark .section__eyebrow{color:var(--lime)}
.section__title{font-size:32px;font-weight:700;line-height:1.3;margin-top:12px}
.section--dark .section__title{color:#fff}
.section__desc{font-size:17px;color:var(--text-2);margin-top:14px}
.section--dark .section__desc{color:rgba(255,255,255,.72)}
.section__head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}

/* ---------- features ---------- */
.features__grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch;margin-top:44px}
.feature-main{background:var(--green-900);color:#fff;border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column}
.feature-main img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#E8EBE4;opacity:.92}
.feature-main__body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-main__body h3{font-size:22px;font-weight:600}
.feature-main__body p{font-size:15px;color:rgba(255,255,255,.72)}
.feature-main__body .link-arrow{margin-top:auto;padding-top:12px}
.feature-side{display:grid;gap:16px;align-content:start}
.feature-mini{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.feature-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFD8C8}
.feature-mini__icon{width:40px;height:40px;flex:0 0 40px;border-radius:50%;background:var(--lime-soft);color:var(--green-900);display:grid;place-items:center;font-size:16px;transition:background var(--ease)}
.feature-mini:hover .feature-mini__icon{background:var(--lime)}
.feature-mini h4{font-size:17px;font-weight:600}
.feature-mini p{font-size:14px;color:var(--text-2);margin-top:4px}

/* ---------- scenes ---------- */
.scenes{background:var(--bg)}
.scene-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:52px;align-items:center;padding:30px 0}
.scene-row+.scene-row{border-top:1px solid var(--line)}
.scene__media{position:relative;border-radius:var(--radius-card);overflow:hidden;background:#E8EBE4}
.scene__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene__media::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--lime)}
.scene-row--reverse .scene__media{order:2}
.scene__text h3{font-size:22px;font-weight:600;margin-bottom:12px}
.scene__text p{font-size:15px;color:var(--text-2)}
.scene__text .link-arrow{margin-top:16px}

/* ---------- cases ---------- */
.cases__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:44px}
.case-card{position:relative;background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:var(--radius-card);padding:30px 26px;box-shadow:inset 0 0 0 1px rgba(216,255,62,.08);transition:border-color var(--ease),transform var(--ease),background var(--ease);overflow:hidden}
.case-card:hover{border-color:var(--lime);transform:translateY(-4px);background:rgba(255,255,255,.07)}
.case-card::before{content:"";position:absolute;top:0;left:0;width:36px;height:36px;background:var(--lime);clip-path:polygon(0 0,100% 0,0 100%)}
.case-card__name{font-size:15px;font-weight:700;color:#fff;margin-top:14px}
.case-card__desc{font-size:14px;color:rgba(255,255,255,.7);margin-top:10px}
.case-card__num{font-size:36px;font-weight:800;color:var(--lime);letter-spacing:-.02em;margin-top:18px;line-height:1.1}
.case-card__num small{font-size:13px;font-weight:600;color:rgba(255,255,255,.6);margin-left:6px;letter-spacing:0}

/* ---------- list / cms ---------- */
.posts__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:44px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFD8C8}
.post-card__media{display:block;background:#E8EBE4}
.post-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-card__title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__title a:hover{color:var(--orange)}
.post-card__excerpt{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.post-card__date{font-size:13px;color:var(--text-3)}
.empty-state{margin-top:44px;text-align:center;padding:64px 24px;border:1px dashed #C9D2C3;border-radius:var(--radius-card);background:#fff}
.empty-state i{font-size:26px;color:var(--text-3)}
.empty-state p{margin-top:12px;font-size:15px;color:var(--text-2)}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:44px auto 0}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.faq__item+.faq__item{margin-top:12px}
.faq__item.is-open{border-color:#CFD8C8;box-shadow:var(--shadow-1)}
.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;min-height:56px;padding:0 22px;font-size:16px;font-weight:600;color:var(--text);position:relative}
.faq__q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--lime);transform:scaleY(0);transition:transform var(--ease)}
.faq__item.is-open .faq__q::before{transform:scaleY(1)}
.faq__q i{font-size:14px;color:var(--text-2);transition:transform var(--ease)}
.faq__item.is-open .faq__q i{transform:rotate(45deg);color:var(--green-900)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq__a p{padding:0 22px 20px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}
.faq__item.is-open .faq__a{max-height:320px}

/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--green-900);color:#fff;overflow:hidden}
.cta-band::after{content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;background:rgba(216,255,62,.09);transform:rotate(28deg);border-radius:40px;pointer-events:none}
.cta-band__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-band h2{font-size:28px;font-weight:700;color:#fff}
.cta-band p{font-size:15px;color:rgba(255,255,255,.72);margin-top:10px}

/* ---------- footer ---------- */
.site-footer{background:var(--green-900);color:rgba(255,255,255,.7);padding-top:64px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer__brand .logo{margin-bottom:16px}
.footer__brand p{font-size:14px;line-height:1.8}
.footer__col h4{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:16px}
.footer__col li+li{margin-top:10px}
.footer__col a{font-size:14px;color:rgba(255,255,255,.7);transition:color var(--ease),transform var(--ease);display:inline-block}
.footer__col a:hover{color:var(--lime);transform:translateX(2px)}
.footer__contact li{font-size:14px;display:flex;gap:10px;align-items:flex-start}
.footer__contact i{color:var(--lime);margin-top:5px;font-size:13px}
.footer__bottom{border-top:1px solid var(--line-dark);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- responsive ---------- */
@media(max-width:1199px){
  .hero h1{font-size:42px}
  .mega{width:680px}
}
@media(max-width:991px){
  .nav{position:fixed;top:0;right:0;height:100vh;width:84%;max-width:360px;background:var(--green-900);padding:88px 22px 32px;transform:translateX(102%);transition:transform .28s ease;z-index:66;overflow-y:auto;margin-left:0}
  .nav.is-open{transform:translateX(0)}
  .nav__list{flex-direction:column;align-items:stretch;gap:4px}
  .nav__link{display:block;padding:14px 12px;font-size:16px;border-radius:10px}
  .nav__link::after{display:none}
  .nav__link.is-active{background:rgba(216,255,62,.12);border-left:3px solid var(--lime);padding-left:14px}
  .burger{display:flex}
  .site-header{z-index:70}
  .header__inner{gap:14px}
  .header__actions .btn--ghost-light{display:none}
  .mega{display:none}
  .hero__inner{grid-template-columns:1fr;gap:52px;padding-top:60px;padding-bottom:84px}
  .hero h1{font-size:34px}
  .hero__sub{max-width:none}
  .stat-card{right:0;bottom:-28px;gap:20px;padding:16px 20px}
  .features__grid{grid-template-columns:1fr}
  .cases__grid{grid-template-columns:1fr 1fr}
  .posts__grid{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:48px 0}
}
@media(max-width:767px){
  .section{padding:64px 0}
  .section__title{font-size:26px}
  .hero h1{font-size:30px}
  .hero__cta .btn{width:100%}
  .hero__visual img{aspect-ratio:16/12}
  .stat-card{position:static;margin-top:16px;justify-content:space-between;box-shadow:var(--shadow-1);border:1px solid var(--line)}
  .metrics__grid{grid-template-columns:1fr 1fr;gap:20px;padding:32px 0}
  .metric__num{font-size:26px}
  .scene-row{grid-template-columns:1fr;gap:22px;padding:26px 0}
  .scene-row--reverse .scene__media{order:0}
  .cases__grid{grid-template-columns:1fr}
  .posts__grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start;text-align:left}
  .faq__q{min-height:52px;padding:0 16px;font-size:15px}
  .faq__a p{padding:0 16px 18px 16px}
  .section__head-row{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
}
@media(max-width:520px){
  .logo__text{font-size:15px}
  .metrics__grid{grid-template-columns:1fr 1fr}
  .hero__inner{padding-top:44px;padding-bottom:64px}
}

/* roulang page: article */
:root{
  --deep:#0E2A23;
  --deep-2:#123528;
  --lime:#D8FF3E;
  --lime-soft:#EEF4D9;
  --orange:#FF6A2B;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#1B241F;
  --muted:#5C6B63;
  --disabled:#A8B2AB;
  --line:#E2E6DE;
  --line-dark:rgba(255,255,255,.12);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-1:0 2px 8px rgba(14,42,35,.06);
  --shadow-2:0 10px 24px rgba(14,42,35,.12);
  --shadow-3:0 16px 40px rgba(0,0,0,.18);
  --container:1200px;
  --gap:24px;
  --section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease,border-color .18s ease}
button{font-family:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-.02em}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
h3{font-size:22px;line-height:1.4;font-weight:600}
h4{font-size:18px;line-height:1.45;font-weight:600}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.text-muted{color:var(--muted)}
:focus-visible{outline:3px solid rgba(216,255,62,.55);outline-offset:2px;border-radius:4px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--deep);
  border-bottom:3px solid var(--lime);
  transition:box-shadow .2s ease,border-bottom-width .2s ease;
}
.site-header.is-scrolled{border-bottom-width:1px;box-shadow:0 8px 24px rgba(14,42,35,.24)}
.header__inner{display:flex;align-items:center;gap:28px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--lime);color:var(--deep);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;letter-spacing:-.04em;
}
.logo__text{color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.logo__accent{color:var(--lime)}
.nav{flex:1 1 auto}
.nav__list{display:flex;align-items:center;gap:26px}
.nav__link{
  position:relative;display:inline-block;
  color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
  padding:8px 0;
}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav__link:hover{color:var(--lime)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--lime)}
.nav__link.is-active::after{transform:scaleX(1)}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  padding:12px 22px;border-radius:var(--radius-btn);
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--lime);color:var(--deep)}
.btn--primary:hover{background:#e2ff5e;transform:translateY(-2px);box-shadow:0 10px 22px rgba(216,255,62,.28)}
.btn--primary:active{transform:translateY(1px)}
.btn--outline{border:1.5px solid rgba(255,255,255,.72);color:#fff}
.btn--outline:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn--outline-dark{border:1.5px solid var(--deep);color:var(--deep)}
.btn--outline-dark:hover{background:rgba(14,42,35,.07);transform:translateY(-2px)}
.btn--ghost-light{border:1.5px solid rgba(255,255,255,.3);color:#fff;padding:10px 16px;font-size:14px}
.btn--ghost-light:hover{border-color:var(--lime);color:var(--lime)}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;transform:none;pointer-events:none}

/* ---------- mega ---------- */
.mega-wrap{position:relative}
.mega{
  position:absolute;right:0;top:calc(100% + 16px);width:720px;
  background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-3);
  padding:24px;display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;z-index:95;
}
.mega.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mega__title{font-size:14px;font-weight:700;color:var(--deep);letter-spacing:.02em;margin-bottom:12px;border-bottom:1px solid var(--line);padding-bottom:10px}
.mega__links li + li{margin-top:8px}
.mega__links a{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted);padding:6px 0}
.mega__links a:hover{color:var(--orange)}
.mega__links a i{font-size:11px;opacity:.6}
.mega__posts li + li{margin-top:12px}
.mega__posts a{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.4}
.mega__posts a:hover{color:var(--orange)}
.mega__posts span{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:3px}
.mega__cards{display:grid;gap:12px}
.mega__card{display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.mega__card img{aspect-ratio:16/9;object-fit:cover;background:#E8EBE4}
.mega__card span{display:block;padding:9px 12px;font-size:13px;font-weight:600;color:var(--deep)}
.mega__card:hover{border-color:var(--lime);box-shadow:var(--shadow-1);transform:translateY(-2px)}

/* mobile nav */
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1.5px solid rgba(255,255,255,.3);color:#fff;
  align-items:center;justify-content:center;font-size:17px;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;
  background:var(--deep);z-index:120;padding:22px 20px 40px;
  transform:translateX(105%);transition:transform .26s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer__close{width:40px;height:40px;border-radius:10px;border:1.5px solid rgba(255,255,255,.3);color:#fff}
.drawer__nav li{margin-bottom:4px}
.drawer__nav a{
  display:block;padding:13px 14px;font-size:15px;font-weight:600;color:rgba(255,255,255,.88);
  border-left:3px solid transparent;border-radius:8px;
}
.drawer__nav a:hover,.drawer__nav a.is-active{color:var(--lime);border-left-color:var(--lime);background:rgba(255,255,255,.05)}
.drawer__group{margin-top:20px;padding-top:18px;border-top:1px solid var(--line-dark)}
.drawer__group p{font-size:13px;color:var(--lime);font-weight:700;margin-bottom:10px;letter-spacing:.02em}
.drawer__group a{display:block;padding:9px 0;font-size:14px;color:rgba(255,255,255,.72)}
.drawer__group a:hover{color:var(--lime)}
.overlay{position:fixed;inset:0;background:rgba(14,42,35,.6);opacity:0;visibility:hidden;transition:.24s;z-index:110}
.overlay.is-open{opacity:1;visibility:visible}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--orange)}
.crumb i{font-size:10px;opacity:.55}
.crumb span.is-current{color:var(--disabled);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article ---------- */
.article-wrap{padding:48px 0 0}
.article-shell{width:100%;max-width:760px;margin:0 auto;padding:0 32px}
.article-head .badge{margin-bottom:16px}
.article-head h1{font-size:40px;line-height:1.24;margin-bottom:18px}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.article-meta .sep{width:1px;height:12px;background:var(--line)}
.article-rule{height:1px;background:var(--line);margin:32px 0 0}
.article-body{padding:32px 0 0;font-size:17px;line-height:1.9}
.article-body p{margin-bottom:20px}
.article-body h2{
  font-size:26px;line-height:1.35;font-weight:700;margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--lime);
}
.article-body h3{font-size:20px;font-weight:700;margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:18px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--lime)}
.article-body ol{counter-reset:li}
.article-body ol li::before{
  counter-increment:li;content:counter(li);position:absolute;left:0;top:.35em;
  font-size:13px;font-weight:700;color:var(--orange);
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:#EEF4EC;border-left:4px solid var(--deep);
  border-radius:0 10px 10px 0;color:var(--deep);font-size:16px;line-height:1.8;
}
.article-body img{border-radius:12px;margin:24px auto;background:#E8EBE4;object-fit:cover}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--deep);border-bottom:1px solid var(--lime)}
.article-body a:hover{color:var(--orange);border-bottom-color:var(--orange)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:#F0F2EC;font-weight:600}
.article-body code{background:#EEF1E9;padding:2px 6px;border-radius:5px;font-size:15px}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}

.empty-box{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-box i{font-size:34px;color:var(--lime);margin-bottom:14px;display:block}
.empty-box h2{font-size:22px;margin-bottom:10px}
.empty-box p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ---------- tags ---------- */
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:13px;color:var(--muted)}
.tag{
  display:inline-block;padding:5px 12px;border-radius:var(--radius-badge);
  background:#EBEEE7;color:var(--muted);font-size:13px;font-weight:500;
}
.tag:hover{background:var(--lime);color:var(--deep)}
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--cat{background:var(--orange);color:#fff}
.badge--state{background:var(--lime);color:var(--deep)}

/* ---------- section base ---------- */
.section{padding:var(--section) 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.section-head p{font-size:16px;color:var(--muted);margin-top:10px;max-width:640px}
.link-more{color:var(--deep);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.link-more:hover{color:var(--orange);gap:11px}
.link-more i{font-size:12px}

/* ---------- related cards ---------- */
.related{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.mini-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#d5dccd}
.mini-card img{aspect-ratio:16/9;object-fit:cover;background:#E8EBE4}
.mini-card__body{padding:16px 18px 20px}
.mini-card__body h4{font-size:16px;margin-bottom:8px}
.mini-card__body .time{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}

/* ---------- FAQ ---------- */
.faq{max-width:840px;margin:0 auto}
.faq__item{background:#F0F2EC;border-radius:10px;margin-bottom:12px;overflow:hidden;border:1px solid transparent;transition:border-color .2s ease}
.faq__item.is-open{background:#fff;border-color:var(--line);box-shadow:var(--shadow-1)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--deep);
}
.faq__q i{font-size:14px;color:var(--orange);transition:transform .2s ease;flex:0 0 auto}
.faq__item.is-open .faq__q i{transform:rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s ease;border-left:3px solid transparent}
.faq__item.is-open .faq__a{max-height:420px;border-left-color:var(--lime)}
.faq__a p{padding:4px 22px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--deep);position:relative;overflow:hidden;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-40px;width:320px;height:220px;
  background:linear-gradient(120deg,rgba(216,255,62,.22),rgba(216,255,62,0));
  clip-path:polygon(0 100%,100% 0,100% 100%);pointer-events:none;
}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:56px 0;flex-wrap:wrap;position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:620px}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer__brand .logo{margin-bottom:16px}
.footer__brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer__col h4{font-size:14px;color:var(--lime);margin-bottom:16px;letter-spacing:.02em}
.footer__col li + li{margin-top:10px}
.footer__col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block}
.footer__col a:hover{color:var(--lime);transform:translateX(2px)}
.footer__contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
.footer__contact i{color:var(--lime);margin-top:5px;font-size:13px}
.footer__bottom{
  margin-top:48px;border-top:1px solid var(--line-dark);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  h1{font-size:40px}
  .nav__list{gap:18px}
  .nav__link{font-size:14px}
  .mega{width:640px}
}
@media (max-width:991px){
  :root{--section:64px}
  .nav,.header__actions .mega-wrap{display:none}
  .hamburger{display:inline-flex}
  h1{font-size:34px}
  h2{font-size:26px}
  .article-head h1{font-size:32px}
  .article-shell{padding:0 24px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .mini-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  :root{--section:48px;--gap:16px}
  .container{padding:0 16px}
  h1{font-size:32px}
  h2{font-size:24px}
  h3{font-size:19px}
  .article-wrap{padding:32px 0 0}
  .article-shell{padding:0 16px}
  .article-head h1{font-size:26px}
  .article-body{font-size:16px;padding-top:24px}
  .article-body h2{font-size:21px;margin-top:32px}
  .btn{width:100%}
  .btn--ghost-light{width:auto}
  .mini-grid{grid-template-columns:1fr}
  .faq__q{min-height:52px;font-size:15px}
  .cta-band__inner{padding:44px 0;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:24px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .crumb span.is-current{max-width:220px}
}

/* roulang page: category1 */
:root{
  --ink:#0E2A23;
  --ink-2:#12352C;
  --lime:#D8FF3E;
  --orange:#FF6A2B;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#1B241F;
  --muted:#5C6B63;
  --dim:#A8B2AB;
  --line:#E2E6DE;
  --line-dark:rgba(255,255,255,.12);
  --r-card:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(14,42,35,.06);
  --sh-2:0 10px 24px rgba(14,42,35,.12);
  --gap:24px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  color:var(--text);background:var(--bg);
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input{font-family:inherit;font-size:inherit;}
h1{font-size:48px;font-weight:800;line-height:1.2;letter-spacing:-.02em;}
h2{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
h3{font-size:22px;font-weight:600;line-height:1.4;}
h4{font-size:18px;font-weight:600;line-height:1.5;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:56px 0;}
.section--dark{background:var(--ink);color:#fff;}
.section--dark h2,.section--dark h3,.section--dark h4{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--orange);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--lime);border-radius:2px;}
.lead{font-size:18px;color:var(--muted);max-width:720px;}
.section--dark .lead{color:rgba(255,255,255,.72);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;}
.sec-head p{max-width:620px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;background:var(--ink);
  border-bottom:3px solid var(--lime);transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{border-bottom-width:1px;box-shadow:0 8px 26px rgba(0,0,0,.28);}
.header__inner{display:flex;align-items:center;gap:28px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo__mark{
  width:34px;height:34px;border-radius:9px;background:var(--lime);color:var(--ink);
  font-weight:800;font-size:18px;display:grid;place-items:center;
  clip-path:polygon(0 0,100% 0,100% 72%,78% 100%,0 100%);
}
.logo__text{color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.logo__accent{color:var(--lime);}
.nav{flex:1;min-width:0;}
.nav__list{display:flex;align-items:center;gap:6px;}
.nav__link{
  position:relative;display:block;padding:8px 12px;color:rgba(255,255,255,.85);
  font-size:15px;font-weight:600;border-radius:8px;transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav__link:hover{color:var(--lime);background:rgba(255,255,255,.06);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--lime);}
.nav__link.is-active::after{transform:scaleX(1);}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  padding:12px 22px;border-radius:var(--r-btn);border:1.5px solid transparent;
  cursor:pointer;transition:transform .16s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;
}
.btn--primary{background:var(--lime);color:var(--ink);box-shadow:0 6px 18px rgba(216,255,62,.22);}
.btn--primary:hover{background:#e3ff67;transform:translateY(-2px);box-shadow:0 12px 26px rgba(216,255,62,.3);}
.btn--primary:active{transform:translateY(1px);}
.btn--orange{background:var(--orange);color:#fff;}
.btn--orange:hover{background:#ff7c45;transform:translateY(-2px);box-shadow:0 12px 24px rgba(255,106,43,.28);}
.btn--ghost-light{background:transparent;border-color:rgba(255,255,255,.32);color:#fff;padding:9px 16px;font-size:14px;}
.btn--ghost-light:hover{background:rgba(255,255,255,.1);border-color:var(--lime);color:var(--lime);}
.btn--outline{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn--outline:hover{background:rgba(14,42,35,.07);transform:translateY(-2px);}
.btn--outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent;}
.btn--outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px);}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(216,255,62,.45);outline-offset:2px;}
.btn--block{width:100%;}

/* ---------- mega ---------- */
.mega-wrap{position:relative;}
.mega{
  position:absolute;right:0;top:calc(100% + 16px);width:720px;background:#fff;color:var(--text);
  border-radius:14px;box-shadow:0 16px 40px rgba(0,0,0,.18);border:1px solid var(--line);
  padding:26px;display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .2s ease;
}
.mega.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega__title{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--orange);margin-bottom:12px;text-transform:uppercase;}
.mega__links li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;font-weight:600;padding:9px 10px;border-radius:8px;color:var(--text);
  transition:background .16s ease,color .16s ease,padding-left .16s ease;
}
.mega__links li a i{color:var(--dim);font-size:11px;}
.mega__links li a:hover{background:#F2F6EE;color:var(--ink);padding-left:14px;}
.mega__links li a:hover i{color:var(--orange);}
.mega__posts li a{display:block;font-size:14px;font-weight:600;padding:9px 0;border-bottom:1px dashed var(--line);color:var(--text);}
.mega__posts li:last-child a{border-bottom:none;}
.mega__posts li a span{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:2px;}
.mega__posts li a:hover{color:var(--orange);}
.mega__cards{display:grid;gap:12px;}
.mega__card{
  display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:10px;
  padding:10px;font-size:14px;font-weight:600;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.mega__card img{width:52px;height:42px;border-radius:8px;background:#E8EBE4;flex-shrink:0;}
.mega__card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--lime);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1.5px solid rgba(255,255,255,.28);
  background:transparent;color:#fff;font-size:16px;cursor:pointer;
}

/* ---------- breadcrumb ---------- */
.crumb{background:#EDF0E9;border-bottom:1px solid var(--line);}
.crumb__inner{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:14px 0;}
.crumb__inner a{color:var(--muted);transition:color .16s ease;}
.crumb__inner a:hover{color:var(--ink);}
.crumb__inner span.sep{color:var(--dim);}
.crumb__inner .current{color:var(--ink);font-weight:600;}

/* ---------- hero ---------- */
.phero{position:relative;background:var(--ink);color:#fff;overflow:hidden;}
.phero__bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.18;
}
.phero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,42,35,.96) 0%,rgba(14,42,35,.72) 56%,rgba(14,42,35,.42) 100%);
}
.phero__lines{position:absolute;inset:0;pointer-events:none;opacity:.55;}
.phero__lines i{position:absolute;display:block;height:3px;background:var(--lime);border-radius:3px;}
.phero__lines i:nth-child(1){width:170px;right:6%;top:22%;transform:rotate(-24deg);}
.phero__lines i:nth-child(2){width:110px;right:14%;top:44%;transform:rotate(-24deg);opacity:.55;}
.phero__lines i:nth-child(3){width:70px;right:20%;top:62%;transform:rotate(-24deg);opacity:.32;}
.phero__inner{position:relative;z-index:2;padding:88px 0 92px;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.phero__kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--lime);background:rgba(216,255,62,.12);border:1px solid rgba(216,255,62,.32);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.phero h1{color:#fff;margin-bottom:20px;}
.phero h1 em{font-style:normal;color:var(--lime);}
.phero__sub{font-size:17px;color:rgba(255,255,255,.82);max-width:540px;margin-bottom:30px;}
.phero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px;}
.phero__meta{font-size:13px;color:rgba(255,255,255,.6);display:flex;flex-wrap:wrap;gap:18px;}
.phero__meta i{color:var(--lime);margin-right:6px;}
.phero__visual{position:relative;}
.phero__visual img{width:100%;height:352px;border-radius:16px;box-shadow:0 24px 50px rgba(0,0,0,.4);}
.phero__stats{
  position:absolute;right:-24px;bottom:-30px;background:#fff;color:var(--text);
  border-radius:14px;box-shadow:0 18px 40px rgba(0,0,0,.28);padding:18px 22px;
  display:grid;grid-template-columns:repeat(3,auto);gap:22px;border:1px solid var(--line);
}
.phero__stat b{display:block;font-size:26px;font-weight:800;color:var(--orange);line-height:1.2;}
.phero__stat span{font-size:12px;color:var(--muted);}

/* ---------- cards ---------- */
.grid{display:grid;gap:var(--gap);}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--2{grid-template-columns:repeat(2,1fr);}
.grid--mixed{grid-template-columns:5fr 7fr;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE0C8;}
.card h3{margin-bottom:10px;}
.card p{color:var(--muted);font-size:15px;}
.card__icon{
  width:44px;height:44px;border-radius:12px;background:#EAF3E4;color:var(--ink);
  display:grid;place-items:center;font-size:17px;margin-bottom:16px;transition:background .2s ease;
}
.card:hover .card__icon{background:var(--lime);}
.card--feature{
  background:var(--ink);color:#fff;border-color:rgba(216,255,62,.2);
  display:flex;flex-direction:column;padding:0;overflow:hidden;
}
.card--feature img{height:200px;width:100%;background:#E8EBE4;}
.card--feature .card--feature__body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card--feature h3{color:#fff;}
.card--feature p{color:rgba(255,255,255,.72);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--lime);
  margin-top:auto;transition:gap .18s ease;
}
.link-arrow:hover{gap:14px;}
.card--feature:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.3);}
.mini-list{display:grid;gap:14px;}
.mini{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.mini__dot{
  width:40px;height:40px;border-radius:50%;background:#EAF3E4;display:grid;place-items:center;
  color:var(--ink);font-size:15px;flex-shrink:0;transition:background .2s ease;
}
.mini:hover .mini__dot{background:var(--lime);}
.mini h4{margin-bottom:4px;}
.mini p{font-size:14px;color:var(--muted);}

/* ---------- steps ---------- */
.steps{display:grid;gap:18px;counter-reset:step;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateX(4px);border-color:var(--lime);box-shadow:var(--sh-2);}
.step__num{
  width:54px;height:54px;border-radius:14px;background:var(--lime);color:var(--ink);
  font-size:20px;font-weight:800;display:grid;place-items:center;
  clip-path:polygon(0 0,100% 0,100% 74%,74% 100%,0 100%);
}
.step h3{margin-bottom:8px;}
.step p{color:var(--muted);font-size:15px;}
.step ul{margin-top:12px;display:grid;gap:8px;}
.step ul li{position:relative;padding-left:20px;font-size:14px;color:var(--text);}
.step ul li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--lime);
}

/* ---------- split blocks ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split--reverse .split__media{order:2;}
.split__media{position:relative;}
.split__media img{width:100%;height:320px;border-radius:var(--r-card);background:#E8EBE4;}
.split__media::after{
  content:"";position:absolute;left:22px;bottom:-10px;width:96px;height:4px;background:var(--lime);border-radius:4px;
}
.split__body h2{margin-bottom:16px;}
.split__body p{color:var(--muted);margin-bottom:16px;}
.tagrow{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-badge);
  background:#EDF3E7;color:var(--ink);border:1px solid #DCE7D3;
}
.tag--orange{background:rgba(255,106,43,.12);color:#C24A15;border-color:rgba(255,106,43,.28);}
.tag--lime{background:rgba(216,255,62,.3);color:#3D5400;border-color:rgba(216,255,62,.6);}

/* ---------- table style rows ---------- */
.devicetable{display:grid;gap:12px;}
.devrow{
  display:grid;grid-template-columns:170px 1fr auto;gap:18px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 22px;box-shadow:var(--sh-1);
  transition:border-color .18s ease,transform .18s ease;
}
.devrow:hover{border-color:var(--orange);transform:translateY(-2px);}
.devrow b{font-size:15px;}
.devrow p{font-size:14px;color:var(--muted);margin:0;}
.badge{font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);white-space:nowrap;}
.badge--lime{background:var(--lime);color:var(--ink);}
.badge--orange{background:var(--orange);color:#fff;}
.badge--ghost{background:#EDF0E9;color:var(--muted);}

/* ---------- stats band ---------- */
.band{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.band__item{background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:var(--r-card);padding:24px;}
.band__item b{display:block;font-size:34px;font-weight:800;color:var(--lime);line-height:1.15;}
.band__item span{display:block;font-size:14px;color:rgba(255,255,255,.68);margin-top:6px;}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq__item.is-open{border-color:var(--lime);box-shadow:var(--sh-1);}
.faq__q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#FAFBF8;border:0;border-left:3px solid transparent;cursor:pointer;
  padding:12px 22px;font-size:16px;font-weight:600;color:var(--text);text-align:left;
  transition:background .18s ease,border-color .18s ease;
}
.faq__q:hover{background:#F2F6EE;}
.faq__item.is-open .faq__q{background:#F7FBEF;border-left-color:var(--lime);}
.faq__q i{color:var(--orange);font-size:14px;flex-shrink:0;transition:transform .2s ease;}
.faq__item.is-open .faq__q i{transform:rotate(180deg);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq__a p{padding:0 22px 20px 25px;font-size:15px;line-height:1.8;color:var(--muted);border-left:3px solid var(--lime);}
.faq__item.is-open .faq__a{max-height:320px;}

/* ---------- cta ---------- */
.cta{position:relative;background:var(--ink);color:#fff;overflow:hidden;border-radius:0;}
.cta::before{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;
  background:linear-gradient(135deg,var(--lime),transparent 70%);opacity:.16;transform:rotate(18deg);
}
.cta__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;}
.cta h2{color:#fff;margin-bottom:10px;}
.cta p{color:rgba(255,255,255,.75);max-width:620px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0;border-top:3px solid var(--lime);}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer__brand p{font-size:14px;line-height:1.8;margin-top:16px;color:rgba(255,255,255,.6);max-width:320px;}
.footer__col h4{font-size:14px;color:var(--lime);margin-bottom:16px;letter-spacing:.04em;}
.footer__col ul{display:grid;gap:10px;}
.footer__col ul li a{
  font-size:14px;color:rgba(255,255,255,.72);display:inline-block;
  transition:color .16s ease,transform .16s ease;
}
.footer__col ul li a:hover{color:var(--lime);transform:translateX(2px);}
.footer__contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);align-items:flex-start;}
.footer__contact li i{color:var(--orange);margin-top:5px;}
.footer__bottom{
  border-top:1px solid var(--line-dark);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  h1{font-size:40px;}
  .phero__stats{right:0;}
  .mega{width:660px;}
}
@media (max-width:1024px){
  :root{--sec:64px;}
  .mega{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav{
    position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;background:#fff;color:var(--text);
    padding:84px 22px 32px;transform:translateX(101%);transition:transform .28s ease;
    box-shadow:-14px 0 40px rgba(0,0,0,.24);overflow-y:auto;z-index:1000;
  }
  .nav.is-open{transform:translateX(0);}
  .nav__list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav__link{color:var(--text);padding:14px 12px;border-radius:10px;font-size:15px;}
  .nav__link::after{display:none;}
  .nav__link:hover,.nav__link.is-active{background:#F2F6EE;color:var(--ink);}
  .nav__link.is-active{box-shadow:inset 3px 0 0 var(--lime);}
  .nav-mask{
    position:fixed;inset:0;background:rgba(14,42,35,.6);opacity:0;visibility:hidden;
    transition:opacity .28s ease;z-index:999;
  }
  .nav-mask.is-open{opacity:1;visibility:visible;}
  .phero__inner{grid-template-columns:1fr;gap:44px;padding:64px 0 80px;}
  .phero__visual img{height:300px;}
  .phero__stats{position:static;margin-top:22px;justify-content:space-between;}
  .grid--mixed{grid-template-columns:1fr;}
  .band{grid-template-columns:repeat(2,1fr);}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .split{gap:36px;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  .container{padding:0 16px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  h3{font-size:19px;}
  body{font-size:15px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .grid--3,.grid--2{grid-template-columns:1fr;}
  .split,.split--reverse{grid-template-columns:1fr;gap:24px;}
  .split--reverse .split__media{order:0;}
  .split__media img{height:230px;}
  .step{grid-template-columns:1fr;gap:14px;}
  .devrow{grid-template-columns:1fr;gap:10px;}
  .band{grid-template-columns:1fr;}
  .phero__cta .btn{width:100%;}
  .phero h1{font-size:32px;}
  .phero__visual img{height:220px;}
  .phero__stats{grid-template-columns:repeat(3,1fr);gap:12px;padding:14px;}
  .phero__stat b{font-size:20px;}
  .cta__inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
  .cta__inner .btn{width:100%;}
  .faq__q{min-height:52px;padding:12px 16px;font-size:15px;}
  .faq__a p{padding:0 16px 18px 19px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .footer__bottom{flex-direction:column;}
  .header__actions .btn--ghost-light{display:none;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0E2A23;
  --brand-800:#143A30;
  --brand-700:#1C4A3D;
  --lime:#D8FF3E;
  --orange:#FF6A2B;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#1B241F;
  --text-2:#5C6B63;
  --text-3:#A8B2AB;
  --line:#E2E6DE;
  --line-dark:rgba(255,255,255,.12);
  --accent:#FF6A2B;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-1:0 2px 8px rgba(14,42,35,.06);
  --shadow-2:0 10px 24px rgba(14,42,35,.12);
  --container:1200px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;object-fit:cover;background:#E8EBE4;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(216,255,62,.55);outline-offset:2px;border-radius:4px;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:var(--brand-900);
  border-bottom:3px solid var(--lime);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-width:1px;box-shadow:0 8px 24px rgba(14,42,35,.28);}
.header__inner{display:flex;align-items:center;gap:28px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo__mark{
  width:34px;height:34px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  background:var(--lime);color:var(--brand-900);
  font-weight:800;font-size:18px;letter-spacing:-.02em;
}
.logo__text{color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.logo__accent{color:var(--lime);}
.nav{flex:1 1 auto;}
.nav__list{display:flex;align-items:center;gap:6px;}
.nav__link{
  display:block;position:relative;
  padding:8px 12px;border-radius:8px;
  color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav__link:hover{color:var(--lime);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--lime);font-weight:600;}
.nav__link.is-active::after{transform:scaleX(1);}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--lime);color:var(--brand-900);box-shadow:0 4px 14px rgba(216,255,62,.28);}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 22px rgba(216,255,62,.34);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.42);}
.btn--ghost-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);color:var(--lime);}
.btn--ghost-dark{background:transparent;color:var(--brand-900);border:1.5px solid rgba(14,42,35,.28);}
.btn--ghost-dark:hover{background:rgba(14,42,35,.06);border-color:var(--brand-900);transform:translateY(-2px);}
.btn--outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);}
.btn--outline-light:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
.btn--block{width:100%;}

.mega-wrap{position:relative;}
.mega{
  position:absolute;right:0;top:calc(100% + 16px);
  width:720px;max-width:calc(100vw - 48px);
  background:#fff;border-radius:var(--radius-card);
  box-shadow:0 16px 40px rgba(0,0,0,.18);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega__title{font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.06em;margin-bottom:12px;}
.mega__links li a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--text);font-weight:500;
}
.mega__links li a:hover{background:#F1F5EC;color:var(--brand-900);}
.mega__links li a i{font-size:11px;color:var(--accent);}
.mega__posts li a{display:block;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--text);font-weight:500;}
.mega__posts li a span{display:block;font-size:12.5px;color:var(--text-2);font-weight:400;margin-top:2px;}
.mega__posts li a:hover{background:#F1F5EC;}
.mega__cards{display:grid;gap:10px;}
.mega__card{
  display:flex;align-items:center;gap:10px;
  padding:10px;border:1px solid var(--line);border-radius:10px;
  font-size:13.5px;font-weight:600;color:var(--text);
}
.mega__card img{width:44px;height:44px;border-radius:8px;flex:0 0 auto;}
.mega__card i{margin-left:auto;color:var(--accent);font-size:12px;}
.mega__card:hover{border-color:var(--accent);box-shadow:var(--shadow-1);transform:translateY(-2px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;}

/* ============ page hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;
  min-height:220px;display:flex;align-items:center;
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,42,35,.94) 0%,rgba(14,42,35,.72) 52%,rgba(14,42,35,.42) 100%);
}
.page-hero__shard{
  position:absolute;right:-60px;top:-40px;width:340px;height:340px;
  border:2px solid rgba(216,255,62,.28);border-radius:50%;
  transform:rotate(18deg);
}
.page-hero__shard--two{right:120px;top:80px;width:180px;height:180px;border-color:rgba(255,106,43,.32);}
.page-hero__inner{position:relative;z-index:2;padding:48px 0;max-width:760px;}
.page-hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,106,43,.16);border:1px solid rgba(255,106,43,.45);
  color:#FFD5BE;font-size:12.5px;font-weight:600;letter-spacing:.06em;
  padding:4px 12px;border-radius:var(--radius-badge);margin-bottom:16px;
}
.page-hero h1{
  font-size:40px;font-weight:800;line-height:1.2;letter-spacing:-.02em;
}
.page-hero h1 em{font-style:normal;color:var(--lime);}
.page-hero p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.78);max-width:620px;}

/* ============ breadcrumb ============ */
.breadcrumb{padding:18px 0 0;font-size:13px;color:var(--text-2);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.breadcrumb li::after{content:"›";margin-left:6px;color:var(--text-3);}
.breadcrumb li:last-child::after{content:"";}
.breadcrumb a:hover{color:var(--brand-900);text-decoration:underline;}
.breadcrumb .current{color:var(--text-2);}

/* ============ section basics ============ */
.section{padding:var(--sec) 0;}
.section--tight{padding-top:40px;}
.section--dark{background:var(--brand-900);color:#fff;}
.section--light{background:#fff;}
.section__head{max-width:720px;margin-bottom:44px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--accent);margin-bottom:12px;
}
.section--dark .eyebrow{color:var(--lime);}
h2{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.section__lead{margin-top:14px;font-size:17px;color:var(--text-2);}
.section--dark .section__lead{color:rgba(255,255,255,.72);}

/* ============ stat strip ============ */
.stat-strip{background:#fff;border-bottom:1px solid var(--line);}
.stat-strip__grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  padding:32px 0;
}
.stat{display:flex;align-items:flex-start;gap:14px;padding:0 8px;border-left:3px solid var(--line);padding-left:18px;}
.stat:first-child{border-left-color:var(--accent);}
.stat__num{font-size:32px;font-weight:800;line-height:1;color:var(--brand-900);letter-spacing:-.02em;}
.stat__num span{font-size:14px;font-weight:600;color:var(--accent);margin-left:2px;}
.stat__label{font-size:13.5px;color:var(--text-2);margin-top:4px;}

/* ============ split module ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split__media{position:relative;}
.split__media img{border-radius:var(--radius-card);aspect-ratio:16/10;width:100%;box-shadow:var(--shadow-1);}
.split__media::after{
  content:"";position:absolute;left:0;bottom:14px;width:88px;height:4px;
  background:var(--accent);border-radius:2px;margin-left:-14px;
}
.split__body h2{margin-bottom:16px;}
.split__body p{color:var(--text-2);margin-bottom:14px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;}
.check-list li i{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:rgba(255,106,43,.12);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:3px;
}
.check-list li strong{font-weight:600;}
.check-list li span{color:var(--text-2);display:block;font-size:14px;}

/* ============ mix grid ============ */
.mix-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px;align-items:stretch;}
.mini-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6DCD0;}
.mini-card__icon{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#EEF4EC;color:var(--brand-700);font-size:16px;
  transition:background-color .2s ease,color .2s ease;
}
.mini-card:hover .mini-card__icon{background:var(--lime);color:var(--brand-900);}
.mini-card h3{font-size:19px;font-weight:600;}
.mini-card p{font-size:14.8px;color:var(--text-2);}
.mini-card__link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700);}
.mini-card__link i{font-size:11px;margin-left:4px;transition:transform .2s ease;}
.mini-card__link:hover i{transform:translateX(4px);}
.long-card{
  background:var(--brand-800);color:#fff;border-radius:var(--radius-card);padding:32px;
  border:1px solid rgba(216,255,62,.18);
  box-shadow:0 0 0 1px rgba(216,255,62,.12);
  display:flex;flex-direction:column;gap:14px;
}
.long-card h3{font-size:22px;font-weight:600;color:#fff;}
.long-card p{font-size:15px;color:rgba(255,255,255,.76);}
.long-card ul{display:grid;gap:12px;margin-top:6px;}
.long-card ul li{
  position:relative;padding-left:20px;font-size:14.5px;color:rgba(255,255,255,.82);
}
.long-card ul li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--lime);
}
.long-card .btn{margin-top:8px;align-self:flex-start;}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-dark);
  border-radius:var(--radius-card);
  padding:26px 22px;
  transition:border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.step:hover{border-color:rgba(216,255,62,.55);background:rgba(255,255,255,.07);transform:translateY(-4px);}
.step__no{
  font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--lime);
}
.step h3{font-size:18px;font-weight:600;margin:12px 0 10px;color:#fff;}
.step p{font-size:14.5px;color:rgba(255,255,255,.72);}

/* ============ device list ============ */
.device-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:center;}
.device-grid img{border-radius:var(--radius-card);aspect-ratio:16/10;width:100%;box-shadow:var(--shadow-1);}
.device-list{display:grid;gap:14px;margin-top:24px;}
.device-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;
  box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.device-list li:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.device-list li i{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:#EEF4EC;color:var(--brand-700);font-size:15px;
}
.device-list h4{font-size:15.5px;font-weight:600;}
.device-list p{font-size:14px;color:var(--text-2);}

/* ============ faq ============ */
.faq{max-width:860px;margin:0 auto;}
.faq__item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item:hover{border-color:#D6DCD0;box-shadow:var(--shadow-1);}
.faq__item.is-open{border-color:var(--accent);box-shadow:var(--shadow-2);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq__q i{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#F1F5EC;color:var(--brand-800);font-size:12px;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.faq__item.is-open .faq__q i{background:var(--accent);color:#fff;transform:rotate(180deg);}
.faq__a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
  border-left:3px solid transparent;
}
.faq__item.is-open .faq__a{max-height:520px;border-left-color:var(--accent);}
.faq__a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ cta band ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;border-radius:0;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  background:repeating-linear-gradient(135deg,rgba(216,255,62,.16) 0 10px,transparent 10px 26px);
  transform:rotate(8deg);
}
.cta-band__inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;
}
.cta-band h2{font-size:30px;color:#fff;}
.cta-band p{margin-top:10px;font-size:15.5px;color:rgba(255,255,255,.74);max-width:560px;}

/* ============ footer ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;border-top:3px solid var(--lime);}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:48px;
}
.footer__brand .logo{margin-bottom:18px;}
.footer__brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:360px;}
.footer__col h4{font-size:14px;font-weight:700;color:var(--lime);margin-bottom:16px;letter-spacing:.04em;}
.footer__col ul{display:grid;gap:10px;}
.footer__col ul li a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;}
.footer__col ul li a:hover{color:var(--lime);transform:translateX(2px);}
.footer__contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}
.footer__contact li i{color:var(--orange);margin-top:5px;font-size:13px;}
.footer__bottom{
  border-top:1px solid var(--line-dark);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ responsive ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .mix-grid{grid-template-columns:1fr 1fr;}
  .long-card{grid-column:1 / -1;}
  .nav__link{padding:8px 9px;font-size:14px;}
}
@media (max-width:991px){
  :root{--sec:64px;}
  .container{padding:0 24px;}
  .nav-toggle{display:flex;}
  .nav{
    position:fixed;top:0;right:0;height:100vh;width:84%;max-width:360px;
    background:var(--brand-900);
    padding:88px 22px 32px;
    transform:translateX(105%);
    transition:transform .28s ease;
    overflow-y:auto;z-index:210;
    box-shadow:-16px 0 40px rgba(0,0,0,.32);
  }
  .nav.is-open{transform:translateX(0);}
  .nav__list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav__link{padding:14px 12px;font-size:16px;border-radius:10px;}
  .nav__link::after{left:0;right:auto;width:3px;height:22px;top:50%;bottom:auto;transform:translateY(-50%) scaleY(0);border-radius:2px;}
  .nav__link:hover::after,.nav__link.is-active::after{transform:translateY(-50%) scaleY(1);}
  .nav__link:hover,.nav__link.is-active{background:rgba(255,255,255,.06);padding-left:20px;}
  body.nav-open{overflow:hidden;}
  .mega{position:fixed;right:0;left:auto;top:0;height:100vh;width:84%;max-width:360px;border-radius:0;
    grid-template-columns:1fr;overflow-y:auto;padding:88px 22px 32px;z-index:220;}
  .mega.is-open{transform:translateY(0);}
  .split{grid-template-columns:1fr;gap:32px;}
  .split__media{order:-1;}
  .split__media::after{margin-left:0;left:14px;}
  .steps{grid-template-columns:1fr 1fr;}
  .device-grid{grid-template-columns:1fr;gap:32px;}
  .stat-strip__grid{grid-template-columns:1fr;gap:20px;padding:28px 0;}
  .stat{border-left:3px solid var(--line);}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero__inner{padding:40px 0;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  .container{padding:0 16px;}
  body{font-size:15px;line-height:1.72;}
  h2{font-size:26px;}
  .page-hero{min-height:160px;}
  .page-hero h1{font-size:30px;}
  .page-hero p{font-size:15px;}
  .page-hero__inner{padding:34px 0;}
  .page-hero__shard{display:none;}
  .header__inner{height:62px;gap:14px;}
  .logo__text{font-size:15px;}
  .header__actions .btn--ghost-light{display:none;}
  .mix-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stat__num{font-size:28px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:40px 0;}
  .cta-band__inner .btn{width:100%;}
  .faq__q{min-height:52px;font-size:15px;padding:12px 16px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .header__actions .btn{width:auto;}
}

/* roulang page: category3 */
:root{
  --ink:#0E2A23;
  --ink-2:#123328;
  --lime:#D8FF3E;
  --orange:#FF6A2B;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#1B241F;
  --muted:#5C6B63;
  --disabled:#A8B2AB;
  --line:#E2E6DE;
  --line-dark:rgba(255,255,255,.12);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-1:0 2px 8px rgba(14,42,35,.06);
  --shadow-2:0 10px 24px rgba(14,42,35,.12);
  --shadow-3:0 16px 40px rgba(0,0,0,.18);
  --sp-section:88px;
  --container:1200px;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:3px solid rgba(216,255,62,.45);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sp-section) 0;}
.section--tight{padding:64px 0;}
.section--dark{background:var(--ink);color:#fff;}
.section--dark .section__lead{color:rgba(255,255,255,.72);}
.section__head{max-width:760px;margin-bottom:44px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--ink);background:rgba(216,255,62,.55);
  padding:5px 12px;border-radius:var(--radius-badge);margin-bottom:16px;
}
.section--dark .section__eyebrow{background:rgba(216,255,62,.16);color:var(--lime);}
h1{font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-.02em;}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
h3{font-size:22px;line-height:1.4;font-weight:600;}
h4{font-size:18px;line-height:1.45;font-weight:600;}
p{font-size:16px;}
.section__lead{font-size:17px;color:var(--muted);margin-top:14px;}
.small{font-size:13px;line-height:1.6;color:var(--muted);}
.section--dark .small{color:rgba(255,255,255,.6);}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--lime);color:var(--ink);box-shadow:0 4px 14px rgba(216,255,62,.28);}
.btn--primary:hover{background:#e2ff62;transform:translateY(-2px);box-shadow:0 10px 24px rgba(216,255,62,.36);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--outline-light{border:1.5px solid rgba(255,255,255,.55);color:#fff;}
.btn--outline-light:hover{background:rgba(255,255,255,.08);transform:translateY(-2px);}
.btn--outline-dark{border:1.5px solid var(--line);color:var(--ink);}
.btn--outline-dark:hover{background:rgba(14,42,35,.06);transform:translateY(-2px);}
.btn--orange{background:var(--orange);color:#fff;}
.btn--orange:hover{background:#ff7d47;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,43,.3);}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;transform:none;pointer-events:none;}

/* ===== Badges ===== */
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge--orange{background:var(--orange);color:#fff;}
.badge--lime{background:var(--lime);color:var(--ink);}
.badge--ghost{background:rgba(14,42,35,.06);color:var(--ink);}
.badge--dark{background:rgba(255,255,255,.12);color:#fff;}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:200;
  background:var(--ink);
  border-bottom:3px solid var(--lime);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{border-bottom-width:1px;box-shadow:0 8px 24px rgba(0,0,0,.22);}
.header__inner{display:flex;align-items:center;gap:28px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo__mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;letter-spacing:-.03em;
}
.logo__text{font-weight:800;font-size:17px;color:#fff;letter-spacing:-.01em;white-space:nowrap;}
.logo__accent{color:var(--lime);}
.nav{flex:1 1 auto;}
.nav__list{display:flex;align-items:center;gap:24px;}
.nav__link{
  position:relative;display:inline-block;padding:6px 0;
  color:rgba(255,255,255,.86);font-size:15px;font-weight:600;
  transition:color 180ms ease;
}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform 180ms ease;
}
.nav__link:hover{color:var(--lime);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--lime);}
.nav__link.is-active::after{transform:scaleX(1);}
.header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.mega-wrap{position:relative;}
.mega{
  position:absolute;right:0;top:calc(100% + 18px);
  width:720px;background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-3);padding:26px;
  display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity 180ms ease,transform 180ms ease,visibility 180ms ease;
  border:1px solid var(--line);
}
.mega.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega__title{
  font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px;
  padding-bottom:10px;border-bottom:1px solid var(--line);
}
.mega__links li a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 0;font-size:14px;color:var(--muted);
  transition:color 180ms ease,transform 180ms ease;
}
.mega__links li a i{font-size:11px;color:var(--orange);}
.mega__links li a:hover{color:var(--ink);transform:translateX(3px);}
.mega__posts li a{
  display:block;padding:9px 0;font-size:14px;font-weight:600;color:var(--text);
  transition:color 180ms ease;
}
.mega__posts li a span{display:block;font-size:12.5px;font-weight:400;color:var(--muted);margin-top:2px;}
.mega__posts li a:hover{color:var(--orange);}
.mega__cards{display:grid;gap:12px;}
.mega__card{
  display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.mega__card img{height:74px;width:100%;object-fit:cover;background:#E8EBE4;}
.mega__card span{display:block;padding:9px 11px;font-size:13px;font-weight:600;color:var(--ink);}
.mega__card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--lime);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;color:#fff;font-size:18px;
  border:1px solid rgba(255,255,255,.18);
}
.nav-toggle:hover{background:rgba(255,255,255,.08);}

/* ===== Page banner ===== */
.page-banner{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
  min-height:220px;display:flex;align-items:center;
}
.page-banner__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  opacity:.18;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,42,35,.96) 0%,rgba(14,42,35,.86) 45%,rgba(14,42,35,.55) 100%);
}
.page-banner__inner{position:relative;z-index:2;padding:56px 0;max-width:820px;}
.page-banner h1{font-size:42px;margin-bottom:14px;}
.page-banner h1 .hl{color:var(--lime);}
.page-banner p{font-size:16px;color:rgba(255,255,255,.78);max-width:680px;}
.banner__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner__meta span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;color:rgba(255,255,255,.85);
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-badge);
  padding:5px 11px;background:rgba(255,255,255,.04);
}
.banner__meta i{color:var(--lime);}

/* ===== Breadcrumb ===== */
.crumb{background:#fff;border-bottom:1px solid var(--line);}
.crumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted);}
.crumb__list li{display:flex;align-items:center;gap:8px;}
.crumb__list a{color:var(--muted);transition:color 180ms ease;}
.crumb__list a:hover{color:var(--orange);}
.crumb__list .sep{color:var(--disabled);}
.crumb__list .current{color:var(--ink);font-weight:600;}

/* ===== Grid helpers ===== */
.grid{display:grid;gap:24px;}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--2{grid-template-columns:repeat(2,1fr);}
.grid--mix{grid-template-columns:5fr 7fr;}
.grid--aside{grid-template-columns:1.15fr 1fr;}

/* ===== Cards ===== */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card__body{padding:24px;}
.card__body h3{margin-bottom:10px;}
.card__body p{color:var(--muted);font-size:15px;}
.card__img{height:180px;width:100%;object-fit:cover;background:#E8EBE4;}
.card--dark{
  background:var(--ink-2);color:#fff;border-color:rgba(255,255,255,.12);
  box-shadow:0 0 0 1px rgba(216,255,62,.16);
}
.card--dark .card__body p{color:rgba(255,255,255,.72);}
.card--dark:hover{box-shadow:0 0 0 1px rgba(216,255,62,.4),var(--shadow-2);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink);margin-top:18px;
  transition:gap var(--ease),color var(--ease);
}
.link-arrow i{font-size:12px;color:var(--orange);}
.link-arrow:hover{gap:13px;color:var(--orange);}
.card--dark .link-arrow{color:var(--lime);}
.card--dark .link-arrow i{color:var(--lime);}

/* ===== Stat panel ===== */
.stat-panel{
  background:#fff;border-radius:var(--radius-card);border:1px solid var(--line);
  box-shadow:var(--shadow-2);padding:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
}
.stat-panel__item{text-align:left;}
.stat-panel__num{font-size:28px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1;}
.stat-panel__num em{font-size:14px;font-style:normal;font-weight:700;color:var(--orange);margin-left:2px;}
.stat-panel__label{font-size:12.5px;color:var(--muted);margin-top:6px;display:block;}

/* ===== Feature list ===== */
.feature-list{display:grid;gap:16px;}
.feature-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-list li:hover{transform:translateX(4px);border-color:var(--lime);box-shadow:var(--shadow-2);}
.feature-list .fi{
  flex:0 0 auto;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(216,255,62,.28);color:var(--ink);font-size:16px;
  transition:background var(--ease);
}
.feature-list li:hover .fi{background:var(--lime);}
.feature-list h4{margin-bottom:4px;}
.feature-list p{font-size:14.5px;color:var(--muted);}

/* ===== Steps ===== */
.steps{counter-reset:step;display:grid;gap:18px;grid-template-columns:repeat(4,1fr);}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-14px;left:22px;
  background:var(--ink);color:var(--lime);
  font-size:13px;font-weight:800;letter-spacing:.06em;
  padding:5px 11px;border-radius:var(--radius-badge);
}
.step h4{margin:10px 0 8px;}
.step p{font-size:14.5px;color:var(--muted);}

/* ===== Split block ===== */
.split{display:grid;grid-template-columns:6fr 6fr;gap:44px;align-items:center;}
.split--reverse .split__media{order:2;}
.split__media{position:relative;}
.split__media img{
  border-radius:var(--radius-card);width:100%;height:340px;object-fit:cover;background:#E8EBE4;
}
.split__media::after{
  content:"";position:absolute;left:20px;bottom:-6px;width:78px;height:4px;
  background:var(--lime);border-radius:2px;
}
.split h3{margin-bottom:14px;}
.split p{color:var(--muted);font-size:15.5px;margin-bottom:12px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

/* ===== FAQ ===== */
.faq{max-width:860px;margin:0 auto;}
.faq__item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:14px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq__item.is-open{border-color:var(--lime);box-shadow:var(--shadow-2);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  background:#FAFBF8;
}
.faq__q i{color:var(--orange);font-size:14px;transition:transform var(--ease);}
.faq__item.is-open .faq__q i{transform:rotate(45deg);}
.faq__a{
  display:none;padding:4px 22px 20px;font-size:15px;line-height:1.8;color:var(--muted);
  border-left:3px solid var(--lime);
}
.faq__item.is-open .faq__a{display:block;}

/* ===== CTA ===== */
.cta{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;border-radius:0;
}
.cta::before{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;
  background:var(--lime);opacity:.12;transform:skewX(-18deg);
}
.cta::after{
  content:"";position:absolute;left:-40px;bottom:-70px;width:220px;height:220px;
  background:var(--orange);opacity:.14;transform:skewX(-18deg);
}
.cta__inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding:60px 0;
}
.cta h2{font-size:30px;margin-bottom:10px;}
.cta p{color:rgba(255,255,255,.75);font-size:15.5px;max-width:620px;}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px;}
.footer__brand .logo{margin-bottom:16px;}
.footer__brand p{font-size:14px;color:rgba(255,255,255,.62);max-width:340px;}
.footer__col h4{font-size:14px;color:var(--lime);margin-bottom:16px;font-weight:700;}
.footer__col ul{display:grid;gap:10px;}
.footer__col li a{
  font-size:14px;color:rgba(255,255,255,.72);
  transition:color var(--ease),transform var(--ease);display:inline-block;
}
.footer__col li a:hover{color:var(--lime);transform:translateX(2px);}
.footer__contact li{
  display:flex;gap:10px;align-items:flex-start;font-size:13.5px;
  color:rgba(255,255,255,.66);line-height:1.7;
}
.footer__contact i{color:var(--lime);margin-top:4px;font-size:13px;}
.footer__bottom{
  border-top:1px solid var(--line-dark);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ===== Mobile drawer ===== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,42,35,.6);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:300;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;
  background:var(--ink);z-index:310;padding:22px 20px;overflow-y:auto;
  transform:translateX(100%);transition:transform 260ms ease;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer__close{width:40px;height:40px;border-radius:10px;color:#fff;border:1px solid rgba(255,255,255,.18);font-size:16px;}
.drawer__list{display:grid;gap:4px;}
.drawer__list a{
  display:block;padding:14px 14px;border-radius:10px;color:rgba(255,255,255,.86);
  font-size:15px;font-weight:600;border-left:3px solid transparent;
}
.drawer__list a.is-active{background:rgba(216,255,62,.1);border-left-color:var(--lime);color:var(--lime);}
.drawer__sub{margin-top:26px;padding-top:20px;border-top:1px solid var(--line-dark);}
.drawer__sub p{font-size:13px;color:var(--lime);font-weight:700;margin-bottom:12px;}
.drawer__sub a{display:block;padding:9px 0;font-size:14px;color:rgba(255,255,255,.7);}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .container{max-width:960px;}
  h1{font-size:40px;}
  .page-banner h1{font-size:36px;}
  .mega{width:640px;grid-template-columns:1fr 1fr;}
  .mega__cards{display:none;}
  .nav__list{gap:16px;}
  .nav__link{font-size:14px;}
}
@media (max-width:991px){
  :root{--sp-section:64px;}
  .container{padding:0 24px;}
  .nav,.header__actions .mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .header__inner{height:64px;justify-content:space-between;}
  .grid--3{grid-template-columns:repeat(2,1fr);}
  .grid--mix,.grid--aside,.split{grid-template-columns:1fr;}
  .split--reverse .split__media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta__inner{flex-direction:column;align-items:flex-start;padding:48px 0;}
  h2{font-size:26px;}
  h1{font-size:32px;}
  .page-banner h1{font-size:30px;}
  .page-banner__inner{padding:40px 0;}
  .split__media img{height:280px;}
}
@media (max-width:767px){
  :root{--sp-section:48px;}
  .container{padding:0 16px;}
  .grid--3,.grid--2,.steps,.footer__grid{grid-template-columns:1fr;}
  .stat-panel{grid-template-columns:1fr 1fr;gap:16px;}
  .btn{width:100%;}
  .btn--inline{width:auto;}
  .faq__q{min-height:52px;padding:12px 16px;font-size:15px;}
  .faq__a{padding-left:16px;padding-right:16px;}
  .section__head{margin-bottom:32px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
  .credits-line{font-size:12.5px;}
}

/* roulang page: category4 */
:root{
  --ink:#0E2A23;
  --ink-soft:#153A31;
  --lime:#D8FF3E;
  --lime-dim:rgba(216,255,62,.18);
  --orange:#FF6A2B;
  --bg:#F5F6F2;
  --card:#FFFFFF;
  --text:#1B241F;
  --muted:#5C6B63;
  --disabled:#A8B2AB;
  --line:#E2E6DE;
  --line-dark:rgba(255,255,255,.12);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-1:0 2px 8px rgba(14,42,35,.06);
  --shadow-2:0 10px 24px rgba(14,42,35,.12);
  --shadow-3:0 16px 40px rgba(0,0,0,.18);
  --sp-section:88px;
  --container:1200px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:3px solid rgba(216,255,62,.55);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  padding:12px 22px;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--lime);color:var(--ink);box-shadow:0 6px 18px rgba(216,255,62,.28);}
.btn--primary:hover{background:#e2ff63;transform:translateY(-2px);box-shadow:0 12px 26px rgba(216,255,62,.34);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(216,255,62,.24);}
.btn--ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.34);}
.btn--ghost-light:hover{background:rgba(255,255,255,.1);border-color:var(--lime);color:var(--lime);}
.btn--outline-dark{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn--outline-dark:hover{background:rgba(14,42,35,.08);transform:translateY(-2px);}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn--outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}
.btn--sm{padding:9px 16px;font-size:14px;}
.btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  border-bottom:3px solid var(--lime);
  transition:box-shadow .2s ease,border-bottom-width .2s ease;
}
.site-header.is-scrolled{border-bottom-width:1px;box-shadow:0 8px 24px rgba(0,0,0,.22);}
.header__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:68px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo__mark{
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  background:var(--lime);
  color:var(--ink);
  font-weight:800;
  font-size:18px;
  border-radius:9px;
  clip-path:polygon(0 0,100% 0,100% 72%,80% 100%,0 100%);
}
.logo__text{color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;}
.logo__accent{color:var(--lime);}
.nav{flex:1;}
.nav__list{display:flex;align-items:center;gap:6px;}
.nav__link{
  position:relative;
  display:block;
  padding:8px 12px;
  color:rgba(255,255,255,.86);
  font-size:15px;
  font-weight:500;
  border-radius:8px;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
}
.nav__link:hover{color:var(--lime);background:rgba(255,255,255,.06);}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--lime);}
.nav__link.is-active::after{transform:scaleX(1);}
.header__actions{display:flex;align-items:center;gap:12px;}
.header-cta{
  background:var(--lime);
  color:var(--ink);
  font-weight:700;
  font-size:15px;
  padding:11px 20px;
  border-radius:var(--radius-btn);
  box-shadow:0 6px 16px rgba(216,255,62,.24);
}
.header-cta:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(216,255,62,.32);}
.mega-wrap{position:relative;}
.mega{
  position:absolute;
  top:calc(100% + 16px);
  right:0;
  width:720px;
  background:#fff;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-3);
  padding:24px;
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  border:1px solid var(--line);
}
.mega-wrap:hover .mega,
.mega.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega__title{
  font-size:13px;
  font-weight:700;
  color:var(--muted);
  letter-spacing:.06em;
  margin-bottom:12px;
  text-transform:uppercase;
}
.mega__links li,.mega__posts li{margin-bottom:8px;}
.mega__links a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--text);
  padding:8px 10px;border-radius:8px;
}
.mega__links a:hover{background:var(--bg);color:var(--ink);transform:translateX(2px);}
.mega__links a i{color:var(--lime);font-size:11px;opacity:0;}
.mega__links a:hover i{opacity:1;}
.mega__posts a{
  display:block;font-size:14px;color:var(--text);font-weight:600;
  padding:8px 10px;border-radius:8px;border-left:3px solid transparent;
}
.mega__posts a span{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:2px;}
.mega__posts a:hover{background:var(--bg);border-left-color:var(--lime);}
.mega__cards{display:grid;gap:10px;}
.mega__card{
  display:block;
  border:1px solid var(--line);
  border-radius:10px;
  overflow:hidden;
  font-size:13px;
  font-weight:600;
  color:var(--text);
  background:var(--bg);
}
.mega__card img{height:64px;width:100%;object-fit:cover;background:#E8EBE4;}
.mega__card span{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;}
.mega__card i{color:var(--orange);font-size:11px;}
.mega__card:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid rgba(255,255,255,.28);
  background:transparent;
  border-radius:10px;
  color:#fff;
  font-size:18px;
}
.nav-mask{
  position:fixed;inset:0;
  background:rgba(14,42,35,.6);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s;
  z-index:58;
}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  background:var(--ink);
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  opacity:.18;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(14,42,35,.35) 0%,rgba(14,42,35,.92) 100%);
}
.page-hero__inner{
  position:relative;
  z-index:2;
  padding:64px 0 56px;
  min-height:220px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.page-hero__line{
  position:absolute;
  right:-60px;top:30px;
  width:340px;height:3px;
  background:var(--lime);
  transform:rotate(-18deg);
  opacity:.55;
}
.page-hero__line.b2{top:80px;right:-110px;width:240px;opacity:.3;}
.page-hero__line.b3{top:132px;right:-30px;width:180px;background:var(--orange);opacity:.45;}
.page-hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--lime-dim);
  border:1px solid rgba(216,255,62,.4);
  color:var(--lime);
  font-size:13px;
  font-weight:600;
  padding:5px 12px;
  border-radius:var(--radius-badge);
  margin-bottom:16px;
  width:fit-content;
}
.page-hero h1{
  font-size:48px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  max-width:820px;
}
.page-hero h1 em{font-style:normal;color:var(--lime);}
.page-hero__sub{
  margin-top:14px;
  font-size:16px;
  color:rgba(255,255,255,.78);
  max-width:680px;
}
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;
  color:var(--muted);
  padding:12px 0;
  flex-wrap:wrap;
}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:var(--disabled);}
.crumb .now{color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section--tight{padding:64px 0;}
.section--dark{background:var(--ink);color:#fff;}
.section--white{background:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:32px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.section-head p{margin-top:12px;font-size:17px;color:var(--muted);}
.section--dark .section-head p{color:rgba(255,255,255,.68);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;
  letter-spacing:.08em;
  color:var(--orange);
  margin-bottom:12px;
}
.section--dark .eyebrow{color:var(--lime);}

/* ---------- 概览混合栅格 ---------- */
.overview-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.overview-cards{
  grid-column:span 7;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.overview-note{
  grid-column:span 5;
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--lime);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-1);
}
.overview-note h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.overview-note p{font-size:15px;color:var(--muted);margin-bottom:14px;}
.overview-note ul li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  margin-bottom:10px;
  color:var(--text);
}
.overview-note ul li::before{
  content:"";
  position:absolute;left:0;top:10px;
  width:8px;height:8px;
  background:var(--lime);
  border-radius:2px;
}
.metric-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(216,255,62,.7);}
.metric-card__label{font-size:13px;color:var(--muted);letter-spacing:.04em;}
.metric-card__num{
  font-size:36px;
  font-weight:800;
  line-height:1.1;
  color:var(--ink);
  margin:10px 0 6px;
}
.metric-card__num span{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px;}
.metric-card__desc{font-size:14px;color:var(--muted);}
.metric-card--accent{border-color:rgba(255,106,43,.35);}
.metric-card--accent .metric-card__num{color:var(--orange);}
.metric-card--lime .metric-card__num{color:#5d7a00;}

/* ---------- 图文卡片列表 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.media-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  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-2);border-color:rgba(14,42,35,.16);}
.media-card__img{
  position:relative;
  background:#E8EBE4;
  aspect-ratio:16/9;
  overflow:hidden;
}
.media-card__img img{width:100%;height:100%;object-fit:cover;}
.media-card__img::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:76px;height:4px;
  background:var(--lime);
}
.media-card__body{padding:22px 24px 26px;}
.badge{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  padding:4px 10px;
  border-radius:var(--radius-badge);
  background:var(--orange);
  color:#fff;
  margin-bottom:12px;
}
.badge--lime{background:var(--lime);color:var(--ink);}
.media-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.media-card p{font-size:15px;color:var(--muted);margin-bottom:16px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--lime);
  padding-bottom:2px;
}
.text-link:hover{color:var(--orange);border-bottom-color:var(--orange);}
.text-link i{font-size:11px;}

/* ---------- 设备矩阵列表 ---------- */
.matrix{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px 24px;
}
.matrix-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 24px;
  border-left:4px solid var(--lime);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-left-color .2s ease;
}
.matrix-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-left-color:var(--orange);}
.matrix-item h4{
  font-size:17px;
  font-weight:600;
  display:flex;align-items:center;gap:10px;
  margin-bottom:8px;
}
.matrix-item h4 i{color:var(--orange);font-size:15px;}
.matrix-item p{font-size:15px;color:var(--muted);}

/* ---------- 流程步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  counter-reset:step;
}
.step{
  position:relative;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-dark);
  border-radius:var(--radius-card);
  padding:26px 22px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(216,255,62,.5);box-shadow:0 0 0 1px rgba(216,255,62,.18);}
.step__no{
  font-size:26px;
  font-weight:800;
  color:var(--lime);
  line-height:1;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.step h4{font-size:17px;font-weight:600;margin-bottom:8px;color:#fff;}
.step p{font-size:14px;color:rgba(255,255,255,.66);}
.step__line{
  position:absolute;top:32px;left:0;
  width:34px;height:3px;
  background:var(--lime);
  opacity:.8;
}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:#EEF4EC;
  border-left:4px solid var(--ink);
  border-radius:10px;
  padding:20px 22px;
}
.notice i{color:var(--orange);font-size:18px;margin-top:3px;}
.notice p{font-size:15px;color:var(--text);}
.notice strong{color:var(--ink);}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;}
.faq__item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item.is-open{border-color:rgba(216,255,62,.9);box-shadow:var(--shadow-1);}
.faq__q{
  width:100%;
  min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--bg);
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  padding:14px 22px;
  transition:background-color .18s ease,color .18s ease;
}
.faq__q:hover{background:#EDEFE9;color:var(--ink);}
.faq__item.is-open .faq__q{background:#fff;color:var(--ink);}
.faq__icon{
  flex-shrink:0;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:6px;
  background:var(--lime);
  color:var(--ink);
  font-size:13px;
  font-weight:800;
}
.faq__a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq__a-inner{
  padding:4px 22px 20px;
  border-left:3px solid transparent;
  transition:border-color .2s ease;
}
.faq__item.is-open .faq__a-inner{border-left-color:var(--lime);}
.faq__a p{font-size:15px;line-height:1.8;color:var(--muted);}
.faq__a p + p{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink);
  color:#fff;
  overflow:hidden;
  padding:56px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-40px;right:-40px;
  width:280px;height:120px;
  background:var(--lime);
  transform:rotate(-14deg);
  opacity:.18;
}
.cta-band::after{
  content:"";
  position:absolute;
  bottom:-30px;left:-30px;
  width:200px;height:90px;
  background:var(--orange);
  transform:rotate(-14deg);
  opacity:.16;
}
.cta-band__inner{
  position:relative;z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{font-size:30px;font-weight:700;line-height:1.3;max-width:640px;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.7);}
.cta-band__actions{display:flex;gap:12px;flex-shrink:0;}

/* ---------- 表单（咨询位） ---------- */
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-1);
}
.form-card h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.form-card > p{font-size:14px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;}
.field input,.field select{
  width:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  padding:12px 14px;
  font-size:15px;
  color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--disabled);}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(216,255,62,.28);
}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 20px;}
.form-grid .full{grid-column:span 2;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#fff;
  padding:64px 0 0;
  border-top:3px solid var(--lime);
}
.footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:36px;
  padding-bottom:44px;
}
.footer__brand .logo{margin-bottom:16px;}
.footer__brand p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;}
.footer__col h4{
  font-size:14px;
  font-weight:700;
  color:var(--lime);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer__col ul li{margin-bottom:10px;}
.footer__col ul a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  display:inline-block;
}
.footer__col ul a:hover{color:var(--lime);transform:translateX(2px);}
.footer__contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:rgba(255,255,255,.66);
  margin-bottom:12px;
}
.footer__contact i{color:var(--lime);font-size:14px;margin-top:4px;}
.footer__bottom{
  border-top:1px solid var(--line-dark);
  padding:18px 0 22px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,.55);
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .page-hero h1{font-size:40px;}
  .mega{width:640px;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  :root{--sp-section:64px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav{
    position:fixed;
    top:0;right:0;
    width:84%;
    max-width:380px;
    height:100vh;
    background:var(--ink);
    padding:88px 24px 32px;
    transform:translateX(102%);
    transition:transform .26s ease;
    overflow-y:auto;
    z-index:59;
    box-shadow:-12px 0 32px rgba(0,0,0,.3);
  }
  .nav.is-open{transform:translateX(0);}
  .nav-mask.is-open{opacity:1;visibility:visible;}
  .nav__list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav__link{padding:14px 16px;font-size:16px;border-radius:10px;}
  .nav__link::after{display:none;}
  .nav__link.is-active{
    background:rgba(216,255,62,.1);
    border-left:3px solid var(--lime);
  }
  .header-cta{display:none;}
  .mega{display:none;}
  .mega-wrap{display:none;}
  .overview-cards{grid-column:span 12;}
  .overview-note{grid-column:span 12;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--sp-section:48px;}
  .container{padding:0 16px;}
  body{font-size:15px;line-height:1.75;}
  .page-hero__inner{padding:44px 0 40px;min-height:160px;}
  .page-hero h1{font-size:30px;}
  .page-hero__sub{font-size:15px;}
  .page-hero__line{display:none;}
  .section-head h2{font-size:25px;}
  .section-head p{font-size:16px;}
  .overview-cards{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;}
  .matrix{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-grid .full{grid-column:span 1;}
  .cta-band h2{font-size:23px;}
  .cta-band__actions{width:100%;flex-direction:column;}
  .cta-band__actions .btn{width:100%;}
  .footer__grid{grid-template-columns:1fr;}
  .footer__bottom{flex-direction:column;gap:6px;}
  .faq__q{min-height:52px;font-size:15px;padding:12px 16px;}
  .faq__a-inner{padding:2px 16px 18px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;}
  .metric-card__num{font-size:30px;}
  .btn{padding:11px 18px;font-size:14px;width:100%;}
  .header__inner{gap:12px;}
  .logo__text{font-size:15px;}
}