/* roulang page: index */
:root{
  --ink-900:#0B0F0E;
  --ink-700:#1C2321;
  --ink-500:#3E4A46;
  --ink-300:#7C8A85;
  --line:#E4E8E5;
  --paper:#FFFFFF;
  --paper-2:#F4F6F4;
  --paper-3:#ECEFEC;
  --brand:#0FBF6B;
  --brand-deep:#078A4C;
  --brand-soft:#E4F7EC;
  --accent:#E7A33A;
  --accent-soft:#FBF0DC;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,15,14,.04);
  --shadow-2:0 12px 32px rgba(11,15,14,.06);
  --shadow-3:0 18px 44px rgba(11,15,14,.16);
  --container:1240px;
  --mono:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.9;color:var(--ink-700);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:min(100% - 48px,var(--container));margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-900);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow .2s ease,background-color .2s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-2)}
.brand-row{display:flex;align-items:center;gap:20px;height:60px;transition:height .2s ease}
.site-header.is-scrolled .brand-row{height:52px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#fff;box-shadow:var(--shadow-1)}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--ink-900);transition:font-size .2s ease}
.site-header.is-scrolled .logo-text{font-size:16px}
.quick-nav{display:flex;align-items:center;gap:22px;margin-left:14px;flex:1 1 auto}
.quick-nav a{font-size:15px;color:var(--ink-500);font-weight:600;position:relative;padding:4px 0;transition:color .16s ease}
.quick-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand);transition:right .2s ease}
.quick-nav a:hover{color:var(--ink-900)}
.quick-nav a:hover::after{right:0}
.brand-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-500);background:var(--paper);transition:border-color .16s ease,color .16s ease,transform .16s ease}
.icon-btn:hover{border-color:var(--ink-300);color:var(--ink-900);transform:translateY(-1px)}
.hamburger{width:42px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px}
.hamburger span{display:block;width:16px;height:2px;background:var(--ink-700);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.channel-bar{border-top:1px solid var(--line);background:var(--paper-2)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:48px}
.channel-nav{display:flex;align-items:center;gap:24px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{position:relative;font-size:15px;font-weight:600;color:var(--ink-500);white-space:nowrap;padding:12px 0;transition:color .16s ease}
.channel-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.channel-link:hover{color:var(--ink-900)}
.channel-link.is-active{color:var(--ink-900)}
.channel-link.is-active::after{transform:scaleX(1)}
.channel-tools{display:flex;align-items:center;gap:16px;min-width:0}
.search-box{display:flex;align-items:center;gap:8px;height:34px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);transition:border-color .16s ease,box-shadow .16s ease}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,191,107,.12)}
.search-box svg{color:var(--ink-300);flex:0 0 auto}
.search-box input{border:0;outline:none;background:transparent;width:168px;font-size:14px;color:var(--ink-700)}
.search-box input::placeholder{color:var(--ink-300)}
.hot-words{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;max-width:340px}
.hot-words::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--ink-300);letter-spacing:.08em;flex:0 0 auto}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:600;background:var(--paper-3);color:var(--ink-500);white-space:nowrap;transition:background-color .16s ease,color .16s ease}
.tag:hover{background:var(--ink-900);color:#fff}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(11,15,14,.44);opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:90}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--paper);z-index:100;transform:translateX(102%);transition:transform .24s ease;display:flex;flex-direction:column;overflow-y:auto;padding:20px}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink-900)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;font-size:18px;color:var(--ink-500)}
.drawer-nav{display:flex;flex-direction:column;padding:14px 0}
.drawer-nav a{padding:12px 2px;border-bottom:1px solid var(--line);font-weight:600;color:var(--ink-700);font-size:16px}
.drawer-nav a.is-active{color:var(--brand-deep)}
.drawer-sub{padding:16px 0 4px;font-size:12px;letter-spacing:.1em;color:var(--ink-300)}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:8px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;padding:0 22px;height:48px;transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,border-color .16s ease,color .16s ease}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#04231A;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#14cd74;box-shadow:var(--shadow-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-outline{border:1px solid var(--ink-900);color:var(--ink-900);background:transparent}
.btn-outline:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px)}
.btn-ghost{color:var(--ink-900);padding:0;height:auto;border-bottom:2px solid var(--brand);border-radius:0}
.btn-ghost:hover{color:var(--brand-deep);transform:translateY(-1px)}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- hero ---------- */
.hero{padding:72px 0 84px;position:relative;overflow:hidden;background:var(--paper)}
.hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.06;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--brand-deep);background:var(--brand-soft);border-radius:var(--radius-pill);padding:6px 14px;margin-bottom:20px}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.08;margin-bottom:20px}
.hero-sub{font-size:18px;color:var(--ink-500);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-bottom:36px}
.hero-trust{display:flex;flex-wrap:wrap;gap:0 32px;border-top:1px solid var(--line);padding-top:20px}
.hero-trust li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--ink-500);padding:6px 0}
.hero-trust li::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--brand);flex:0 0 auto}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-2)}
.hero-badge{position:absolute;left:18px;bottom:18px;display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);color:#7A5312;font-size:13px;font-weight:700;padding:8px 14px;border-radius:var(--radius-pill);box-shadow:var(--shadow-1)}

/* ---------- metric strip ---------- */
.metrics{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:34px 28px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.metric-num{font-family:var(--mono);font-size:34px;font-weight:800;color:var(--ink-900);line-height:1.1;letter-spacing:-.03em}
.metric-num em{font-style:normal;font-size:16px;color:var(--brand-deep);margin-left:6px;font-family:inherit}
.metric-text{font-size:15px;color:var(--ink-500);margin-top:6px}

/* ---------- sections ---------- */
.section{padding:100px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:10px}
.section-head p{color:var(--ink-500);max-width:640px;margin:0}
.section-more{flex:0 0 auto;font-size:15px;font-weight:700;color:var(--brand-deep);border-bottom:2px solid var(--brand);padding-bottom:2px;transition:transform .16s ease}
.section-more:hover{transform:translateY(-1px)}

/* ---------- story ---------- */
.story{background:var(--paper)}
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:44px 0;border-top:1px solid var(--line)}
.story-row:first-child{border-top:0;padding-top:0}
.story-row.reverse .story-media{order:2}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-2)}
.story-index{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.12em;margin-bottom:12px;display:block}
.story-body h3{font-size:clamp(21px,2.2vw,27px);margin-bottom:16px}
.story-body p{color:var(--ink-500)}
.story-link{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-weight:700;color:var(--brand-deep);border-bottom:2px solid var(--brand);padding-bottom:2px;transition:gap .16s ease}
.story-link:hover{gap:12px}

/* ---------- bento ---------- */
.bento-section{background:var(--paper-2)}
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);border-color:var(--ink-300)}
.card:hover .card-title{background-image:linear-gradient(var(--brand),var(--brand));background-size:100% 2px;background-repeat:no-repeat;background-position:0 100%}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{display:inline;font-size:17px;line-height:1.5;padding-bottom:2px}
.card-desc{font-size:14.5px;color:var(--ink-500);line-height:1.75;margin:0}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-300)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:700}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#8A5C14}
.bento .b1{grid-column:span 3;grid-row:span 2}
.bento .b2,.bento .b3{grid-column:span 3}
.bento .b4,.bento .b5,.bento .b6{grid-column:span 2}
.bento .b1 .card-media img{aspect-ratio:16/9}
.bento .b2 .card-media img,.bento .b3 .card-media img{aspect-ratio:16/7}
.bento .b4 .card-media img,.bento .b5 .card-media img,.bento .b6 .card-media img{aspect-ratio:16/9}
.bento .b1 .card-title{font-size:21px}
.bento .b1 .card-body{padding:26px 28px 28px}

/* ---------- news list ---------- */
.news{background:var(--paper)}
.news-list{border-top:1px solid var(--line)}
.news-row{display:flex;align-items:center;gap:24px;padding:24px 4px;border-bottom:1px solid var(--line);transition:background-color .16s ease,padding-left .16s ease}
.news-row:hover{background:var(--paper-2);padding-left:12px}
.news-body{flex:1 1 auto;min-width:0}
.news-title{font-size:17.5px;line-height:1.55;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .16s ease}
.news-row:hover .news-title{color:var(--brand-deep)}
.news-desc{font-size:14.5px;color:var(--ink-500);margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px}
.news-time{font-family:var(--mono);font-size:13px;color:var(--accent);font-weight:600}
.news-arrow{flex:0 0 auto;font-size:18px;color:var(--ink-300);transition:transform .16s ease,color .16s ease}
.news-row:hover .news-arrow{transform:translateX(4px);color:var(--brand-deep)}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;padding:64px 24px;background:var(--paper-2);border-radius:var(--radius-card);text-align:center;color:var(--ink-500)}
.empty-mark{width:46px;height:46px;border-radius:12px;background:var(--paper-3);border:1px solid var(--line)}

/* ---------- trust band ---------- */
.trust{background:var(--ink-900);color:#D8E0DC}
.trust .section-head h2{color:#fff}
.trust .section-head p{color:#9BA8A3}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.trust-item{padding:26px 24px;border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-card);background:rgba(255,255,255,.03);transition:border-color .2s ease,transform .2s ease}
.trust-item:hover{border-color:var(--brand);transform:translateY(-2px)}
.trust-num{font-family:var(--mono);font-size:38px;font-weight:800;color:var(--brand);line-height:1;letter-spacing:-.03em}
.trust-label{font-size:15px;margin-top:12px;color:#C7D1CD}
.trust-note{margin-top:12px;font-size:13.5px;color:#8B9893}

/* ---------- faq ---------- */
.faq{background:var(--paper-2)}
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--shadow-2)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;height:auto;min-height:64px;padding:18px 24px;font-size:16.5px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em}
.faq-icon{flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--paper-3);position:relative;transition:background-color .2s ease,transform .24s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink-700);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:opacity .2s ease}
.faq-item.is-open .faq-icon{background:var(--brand);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::before{background:#04231A}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{padding:0 24px 22px;color:var(--ink-500);font-size:16px;line-height:1.85}

/* ---------- cta ---------- */
.cta{background:var(--ink-900);position:relative;overflow:hidden;padding:80px 0}
.cta::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;opacity:.14}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta h2{color:#fff;font-size:clamp(24px,2.8vw,34px);margin-bottom:14px}
.cta p{color:#9BA8A3;margin:0}
.subscribe{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-card);padding:26px}
.subscribe label{display:block;font-size:13.5px;font-weight:700;color:#C7D1CD;margin-bottom:8px}
.subscribe-row{display:flex;gap:12px}
.subscribe input{flex:1 1 auto;height:48px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.28);color:#fff;padding:0 16px;outline:none;transition:border-color .16s ease,box-shadow .16s ease}
.subscribe input::placeholder{color:#7C8A85}
.subscribe input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,191,107,.18)}
.form-note{margin-top:12px;font-size:13px;color:#8B9893}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:#A9B5B0;padding:64px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-text{color:#fff;font-size:17px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-list li{margin-bottom:10px}
.footer-list a{color:#A9B5B0;transition:color .16s ease}
.footer-list a:hover{color:var(--brand)}
.footer-desc{color:#8B9893;line-height:1.85;margin:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:#7C8A85}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .hot-words{max-width:220px}
  .search-box input{width:130px}
}
@media (max-width:1024px){
  body{font-size:16px}
  .container{width:min(100% - 40px,var(--container))}
  .quick-nav{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero{padding:52px 0 64px}
  .section{padding:76px 0}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(3){border-left:0}
  .metric{border-top:1px solid var(--line)}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0}
  .story-row{grid-template-columns:1fr;gap:28px}
  .story-row.reverse .story-media{order:0}
  .bento{grid-template-columns:repeat(4,1fr)}
  .bento .b1{grid-column:span 4;grid-row:auto}
  .bento .b2,.bento .b3{grid-column:span 2}
  .bento .b4,.bento .b5,.bento .b6{grid-column:span 2}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .channel-bar{display:none}
  .hamburger{display:flex}
  .icon-btn{display:none}
  .hero h1{font-size:clamp(30px,8vw,40px)}
  .hero-sub{font-size:16.5px}
  .section{padding:60px 0}
  .section-tight{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .bento{grid-template-columns:1fr}
  .bento .b1,.bento .b2,.bento .b3,.bento .b4,.bento .b5,.bento .b6{grid-column:span 1}
  .news-row{gap:14px;padding:20px 0}
  .news-row:hover{padding-left:0}
  .trust-grid{grid-template-columns:1fr}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .subscribe-row{flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container{width:calc(100% - 32px)}
  .hero-trust{gap:0 20px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .metric{padding:24px 18px}
  .metric-num{font-size:28px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink-900:#0B0F0E;
  --ink-700:#1C2321;
  --ink-500:#3E4A46;
  --ink-300:#7C8A85;
  --line:#E4E8E5;
  --paper:#FFFFFF;
  --paper-2:#F4F6F4;
  --paper-3:#ECEFEC;
  --brand:#0FBF6B;
  --brand-deep:#078A4C;
  --brand-soft:#E4F7EC;
  --accent:#E7A33A;
  --accent-soft:#FBF0DC;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,15,14,.04);
  --shadow-2:0 12px 32px rgba(11,15,14,.06);
  --shadow-3:0 1px 2px rgba(11,15,14,.04), 0 18px 40px rgba(11,15,14,.10);
  --container:1240px;
  --read:720px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;line-height:1.25;letter-spacing:-.02em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#04240F;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#12cf74;transform:translateY(-1px);box-shadow:var(--shadow-3)}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink-900)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(0,0,0,.28)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:disabled{opacity:.4;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep);
  text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;
  transition:color .18s ease,gap .18s ease;
}
.link-arrow:hover{color:var(--ink-900);gap:10px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#8A5D13}
.badge-dark{background:rgba(255,255,255,.12);color:#DFF7EA;border:1px solid rgba(255,255,255,.18)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--paper);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(11,15,14,.06)}
.header-top{
  display:flex;align-items:center;gap:20px;
  height:56px;
  transition:height .2s ease;
}
.site-header.is-scrolled .header-top{height:48px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink-900);color:var(--brand);
}
.logo-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;transition:font-size .2s ease}
.site-header.is-scrolled .logo-text{font-size:16px}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-500);border:1px solid var(--line);transition:.18s ease;
}
.icon-btn:hover{color:var(--ink-900);border-color:var(--ink-300);background:var(--paper-2)}
.hamburger{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.hamburger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink-900);transition:.2s ease}
.header-bottom{border-top:1px solid var(--line);background:var(--paper)}
.header-bottom-inner{display:flex;align-items:center;gap:18px;height:44px}
.quick-nav{display:flex;align-items:center;gap:4px;flex:0 0 auto}
.quick-nav a{
  position:relative;font-size:14px;color:var(--ink-500);
  padding:6px 10px;border-radius:8px;transition:.18s ease;
}
.quick-nav a:hover{color:var(--ink-900);background:var(--paper-2)}
.quick-nav a.is-active{color:var(--ink-900);font-weight:700}
.quick-nav a.is-active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:-1px;height:2px;border-radius:2px;background:var(--brand);
}
.search-box{
  display:flex;align-items:center;gap:6px;flex:0 1 250px;
  height:34px;padding:0 6px 0 12px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:10px;
  transition:.18s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,191,107,.14)}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink-900)}
.search-box input::placeholder{color:var(--ink-300)}
.search-box button{display:inline-flex;padding:5px;color:var(--ink-500)}
.search-box button:hover{color:var(--brand-deep)}
.hot-tags{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.hot-tags::-webkit-scrollbar{display:none}
.hot-tags a{
  flex:0 0 auto;font-size:12.5px;padding:5px 11px;border-radius:var(--radius-pill);
  background:var(--accent-soft);color:#8A5D13;border:1px solid transparent;transition:.18s ease;
}
.hot-tags a:hover{background:var(--ink-900);color:#fff}

/* ---------- 抽屉 ---------- */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(11,15,14,.46);
  opacity:0;visibility:hidden;transition:.24s ease;z-index:200;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:210;
  background:#fff;transform:translateX(102%);
  transition:transform .26s ease;
  padding:20px 22px 32px;overflow-y:auto;
  box-shadow:-18px 0 44px rgba(11,15,14,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--line);
  font-size:20px;line-height:1;color:var(--ink-500);display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{color:var(--ink-900);background:var(--paper-2)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;padding:16px 0}
.drawer-nav a{
  padding:11px 12px;border-radius:10px;font-size:15px;font-weight:600;color:var(--ink-700);
  transition:.18s ease;
}
.drawer-nav a:hover{background:var(--paper-2);color:var(--ink-900)}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand-deep)}
.drawer-cta{width:100%;margin-bottom:20px}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
.drawer-tags a{
  font-size:12.5px;padding:6px 12px;border-radius:var(--radius-pill);
  background:var(--paper-2);color:var(--ink-500);border:1px solid var(--line);
}
.drawer-tags a:hover{background:var(--ink-900);color:#fff;border-color:var(--ink-900)}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;color:#fff;
  background-color:var(--ink-900);
  background-image:linear-gradient(180deg,rgba(11,15,14,.86),rgba(11,15,14,.95)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:44px 0 52px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62)}
.breadcrumb a{color:rgba(255,255,255,.62);transition:color .18s ease}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.3)}
.breadcrumb .current{color:rgba(255,255,255,.9);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-badges{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:22px 0 16px}
.article-title{
  color:#fff;font-size:clamp(28px,3.6vw,44px);line-height:1.2;letter-spacing:-.02em;
  max-width:22ch;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;font-size:13.5px;color:rgba(255,255,255,.66)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.35)}
.meta-num{font-family:var(--font-num);color:var(--accent);letter-spacing:.01em}

/* ---------- 正文布局 ---------- */
.article-body{padding:64px 0 72px;background:var(--paper)}
.article-layout{display:grid;grid-template-columns:minmax(0,var(--read));justify-content:center;gap:56px}
.article-main{min-width:0}
.article-side{display:none}

.prose{font-size:17px;line-height:1.9;color:var(--ink-700);word-wrap:break-word}
.prose>*+*{margin-top:1em}
.prose p{margin:0}
.prose h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);line-height:1.35;
  margin-top:2.1em;padding-left:16px;scroll-margin-top:96px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:.92em;border-radius:2px;background:var(--brand);
}
.prose h3{font-size:20px;line-height:1.4;margin-top:1.7em;scroll-margin-top:96px}
.prose ul,.prose ol{padding-left:1.4em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.4em 0}
.prose li::marker{color:var(--brand)}
.prose a{color:var(--brand-deep);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.prose a:hover{text-decoration-thickness:2px;color:var(--ink-900)}
.prose strong{color:var(--ink-900);font-weight:700}
.prose blockquote{
  margin:1.4em 0;padding:16px 20px;
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;
  background:var(--brand-soft);color:var(--ink-700);
}
.prose blockquote p+p{margin-top:.6em}
.prose table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.prose th,.prose td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.prose th{background:var(--paper-2);font-weight:700;color:var(--ink-900)}
.prose tbody tr:nth-child(even){background:#FAFBFA}
.prose img{border-radius:12px;margin:1.4em 0}
.prose figure{margin:1.4em 0}
.prose figcaption{font-size:13px;color:var(--ink-300);text-align:center;margin-top:10px}
.prose code{
  font-family:var(--font-num);font-size:14px;background:var(--paper-3);
  padding:2px 6px;border-radius:6px;color:var(--ink-900);
}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.prose .tip,.prose .warn{
  border-radius:12px;padding:14px 18px;font-size:16px;
  border:1px solid transparent;
}
.prose .tip{background:var(--brand-soft);border-color:#C9EEDB}
.prose .warn{background:var(--accent-soft);border-color:#F2DFB8}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--paper-2);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink-300);
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--ink-500);margin-bottom:20px}

/* 标签 */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:48px;padding-top:26px;border-top:1px solid var(--line)}
.article-tags .label{font-size:13px;color:var(--ink-300);font-family:var(--font-num)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--ink-500);background:var(--paper-2);border:1px solid var(--line);
  transition:.18s ease;
}
.tag:hover{background:var(--ink-900);color:#fff;border-color:var(--ink-900)}

/* 侧栏 */
.side-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;margin-bottom:20px;
}
.side-title{
  font-size:13px;font-weight:700;color:var(--ink-900);letter-spacing:.06em;
  text-transform:uppercase;margin-bottom:14px;
}
.toc{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow-y:auto;scrollbar-width:thin}
.toc-link{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-500);
  padding:6px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:.18s ease;
}
.toc-link:hover{color:var(--ink-900);background:#fff;border-left-color:var(--brand)}
.toc-h3{padding-left:22px;font-size:13.5px}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{
  font-size:12.5px;padding:6px 12px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink-500);transition:.18s ease;
}
.side-tags a:hover{background:var(--ink-900);color:#fff;border-color:var(--ink-900)}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--paper-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{font-size:15px;color:var(--ink-500);margin-top:10px;max-width:58ch}

/* 继续了解 / 双列导航 */
.cont-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.cont-card{
  display:flex;flex-direction:column;gap:10px;
  padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cont-card:hover{transform:translateY(-2px);border-color:var(--ink-300);box-shadow:var(--shadow-3)}
.cont-card .kicker{font-size:12.5px;font-family:var(--font-num);color:var(--accent)}
.cont-card h3{font-size:18px;line-height:1.45}
.cont-card p{font-size:14.5px;color:var(--ink-500)}
.cont-card .arrow{color:var(--brand-deep);font-size:14px;font-weight:600;transition:transform .2s ease}
.cont-card:hover .arrow{transform:translateX(4px)}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:var(--ink-300);box-shadow:var(--shadow-3)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper-3)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;line-height:1.5}
.rel-card:hover .rel-body h3{text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;text-underline-offset:4px}
.rel-body p{font-size:14.5px;color:var(--ink-500);line-height:1.75}
.rel-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-deep)}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:#C9EEDB;box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ico{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--brand-soft);transition:transform .24s ease;
}
.faq-item summary .ico::before,
.faq-item summary .ico::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:var(--brand-deep);border-radius:2px;
}
.faq-item summary .ico::before{width:10px;height:2px}
.faq-item summary .ico::after{width:2px;height:10px;transition:opacity .24s ease,transform .24s ease}
.faq-item[open] summary .ico{transform:rotate(180deg)}
.faq-item[open] summary .ico::after{opacity:0;transform:translate(-50%,-50%) scaleY(.2)}
.faq-answer{padding:0 22px 20px;font-size:16px;line-height:1.85;color:var(--ink-500)}

/* CTA 带 */
.cta-band{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--ink-900);
  background-image:linear-gradient(180deg,rgba(11,15,14,.86),rgba(11,15,14,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:64px 0;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);max-width:18ch}
.cta-inner p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.7);max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.66);padding:64px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.08);color:var(--brand)}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:38ch}
.footer-title{font-size:13px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:rgba(255,255,255,.6);transition:.18s ease}
.footer-list a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .article-side{display:block}
  .article-layout{grid-template-columns:minmax(0,var(--read)) 280px;justify-content:center}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .hot-tags{display:none}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:860px){
  .header-bottom-inner{flex-wrap:wrap;height:auto;padding:10px 0;gap:12px}
  .search-box{flex:1 1 100%;order:3}
  .hamburger{display:inline-flex}
  .header-cta{display:none}
  .cont-grid{grid-template-columns:1fr}
  .article-title{max-width:none}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.85}
  .section{padding:52px 0}
  .section-tight{padding:44px 0}
  .article-body{padding:44px 0 56px}
  .article-hero{padding:32px 0 40px}
  .breadcrumb .current{white-space:normal}
  .rel-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .section-head{flex-direction:column;align-items:flex-start}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-answer{padding:0 18px 18px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text{font-size:16px}
  .article-meta{gap:10px;font-size:12.5px}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .cta-actions{width:100%}
  .header-actions .btn-sm{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --ink-900:#0B0F0E;
  --ink-700:#1C2321;
  --ink-500:#3E4A46;
  --ink-300:#7C8A85;
  --line:#E4E8E5;
  --paper:#FFFFFF;
  --paper-2:#F4F6F4;
  --paper-3:#ECEFEC;
  --brand:#0FBF6B;
  --brand-deep:#078A4C;
  --brand-soft:#E4F7EC;
  --accent:#E7A33A;
  --accent-soft:#FBF0DC;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,15,14,.04);
  --shadow-2:0 12px 32px rgba(11,15,14,.06);
  --shadow-2h:0 18px 44px rgba(11,15,14,.11);
  --container:1240px;
  --font-cn:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:112px}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  letter-spacing:.01em;
  word-spacing:.02em;
}
img{max-width:100%;display:block}
a{color:var(--brand-deep);text-decoration:none}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:16px;top:-60px;z-index:200;background:var(--ink-900);color:#fff;padding:10px 18px;border-radius:0 0 10px 10px;transition:top .2s}
.skip-link:focus{top:0;color:#fff}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  transition:background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{background:var(--paper);box-shadow:0 1px 0 var(--line),0 6px 24px rgba(11,15,14,.05)}
.header-inner{display:flex;align-items:center;gap:22px;height:58px;transition:height .22s ease}
.site-header.is-scrolled .header-inner{height:60px}

.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--ink-900);color:var(--brand);
  display:grid;place-items:center;flex:0 0 auto;
}
.logo-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.02em;transition:font-size .22s ease}
.site-header.is-scrolled .logo-text{font-size:16px}

.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-mini{display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-input);background:var(--paper-2);transition:border-color .18s,background .18s,box-shadow .18s}
.search-mini:focus-within{background:var(--paper);border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,191,107,.14)}
.search-mini svg{flex:0 0 auto;color:var(--ink-300)}
.search-mini input{width:150px;border:0;background:transparent;outline:none;font-size:14px}
.search-mini input::placeholder{color:var(--ink-300)}

.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-input);place-items:center;color:var(--ink-900);background:var(--paper)}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;transition:transform .2s}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

.channel-bar{border-top:1px solid var(--line);max-height:52px;overflow:hidden;transition:max-height .24s ease,opacity .18s ease}
.site-header.is-scrolled .channel-bar{max-height:0;opacity:0;border-top-color:transparent}
.channel-inner{display:flex;align-items:center;gap:20px;height:52px}

.quick-nav{display:flex;align-items:center;gap:4px;flex:0 0 auto}
.quick-nav a{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 12px;
  font-size:14.5px;font-weight:600;color:var(--ink-500);border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.quick-nav a:hover{color:var(--ink-900);background:var(--paper-2)}
.quick-nav a.active{color:var(--ink-900)}
.quick-nav a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}

.channel-side{margin-left:auto;display:flex;align-items:center;gap:14px;min-width:0}
.hot-tags{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;padding:2px}
.hot-tags::-webkit-scrollbar{display:none}
.hot-tags a{
  flex:0 0 auto;height:26px;display:inline-flex;align-items:center;padding:0 11px;
  font-size:12.5px;font-weight:600;color:var(--ink-500);
  background:var(--paper-3);border-radius:var(--radius-pill);
  transition:background .18s,color .18s;
}
.hot-tags a:hover{background:var(--ink-900);color:#fff}

/* mobile drawer */
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--paper);
  padding:16px 0 22px;
}
.mobile-drawer.is-open{display:block}
.drawer-nav{display:grid;gap:2px;margin-bottom:14px}
.drawer-nav a{display:block;padding:12px 4px;font-size:16px;font-weight:600;color:var(--ink-700);border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--brand-deep)}
.drawer-search{display:flex;gap:10px;margin-top:16px}
.drawer-search input{flex:1;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-input);background:var(--paper-2);outline:none}
.drawer-search input:focus{background:var(--paper);border-color:var(--brand)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:56px;padding:0 28px;font-size:15.5px}
.btn-primary{background:var(--brand);color:#04231A}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,191,107,.26);color:#04231A}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-outline:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  color:var(--brand-deep);text-decoration:underline;text-decoration-thickness:2px;
  text-underline-offset:4px;transition:color .18s ease,transform .18s ease;
}
.link-arrow:hover{color:var(--brand);transform:translateX(2px)}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ============ BADGES / EYEBROW ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:600;letter-spacing:.01em}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#8A5A12}
.badge-dark{background:rgba(255,255,255,.12);color:#CFEFDD}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--brand-deep);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}
.eyebrow.on-dark{color:var(--brand)}
.eyebrow.on-dark::before{background:var(--accent)}

/* ============ BREADCRUMB ============ */
.breadcrumb{border-bottom:1px solid var(--line);background:var(--paper)}
.breadcrumb ol{display:flex;align-items:center;flex-wrap:wrap;gap:8px;height:52px;font-size:13.5px;color:var(--ink-300)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li::after{content:"/";color:var(--line);font-size:13px}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--ink-500);font-weight:500}
.breadcrumb a:hover{color:var(--brand-deep)}
.breadcrumb [aria-current="page"]{color:var(--ink-900);font-weight:600}

/* ============ HERO ============ */
.hero{background:var(--ink-900);color:#E6EDE9;position:relative;overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-140px;top:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(15,191,107,.30),rgba(15,191,107,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:72px 0 76px;
}
.hero h1{
  color:#fff;font-size:clamp(32px,4.4vw,56px);line-height:1.12;letter-spacing:-.025em;
  margin:20px 0 18px;
}
.hero-sub{font-size:17.5px;line-height:1.85;color:#B9C6C0;max-width:520px}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin:30px 0 0}
.hero .link-arrow{color:var(--brand)}
.hero .link-arrow:hover{color:#fff}

.trust-bar{
  display:flex;flex-wrap:wrap;gap:0;margin-top:38px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
}
.trust-bar li{
  padding:0 22px;border-left:1px solid rgba(255,255,255,.14);
}
.trust-bar li:first-child{padding-left:0;border-left:0}
.trust-bar b{display:block;font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--brand);line-height:1.2}
.trust-bar span{font-size:12.5px;color:#93A19B;letter-spacing:.02em}

.hero-figure{position:relative;margin:0}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.12);
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--accent);color:#3B2404;font-size:13px;font-weight:700;
  box-shadow:0 8px 22px rgba(0,0,0,.3);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:#3B2404;display:block}

/* ============ LAYOUT ============ */
.layout{padding:76px 0 20px}
.layout-grid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;align-items:start}

/* TOC */
.toc{position:sticky;top:112px}
.toc-title{
  font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--ink-300);
  text-transform:uppercase;margin-bottom:14px;
}
.toc-list{display:grid;gap:2px;border-left:1px solid var(--line)}
.toc-list a{
  display:block;padding:9px 0 9px 16px;margin-left:-1px;
  border-left:2px solid transparent;
  font-size:14.5px;color:var(--ink-500);line-height:1.55;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.toc-list a:hover{color:var(--ink-900);border-left-color:var(--ink-300)}
.toc-list a.is-active{color:var(--brand-deep);border-left-color:var(--brand);font-weight:600}
.toc-note{
  margin-top:26px;padding:18px;border-radius:var(--radius-card);
  background:var(--paper-2);border:1px solid var(--line);
}
.toc-note h3{font-size:14px;margin-bottom:8px}
.toc-note p{font-size:13.5px;line-height:1.75;color:var(--ink-500);margin:0 0 12px}
.toc-note .link-arrow{font-size:13.5px}

/* ============ ARTICLE BODY ============ */
.article-head{margin-bottom:34px}
.article-head h2{font-size:clamp(24px,2.6vw,32px);margin:14px 0 14px;line-height:1.3}
.article-head .lead{font-size:17.5px;line-height:1.9;color:var(--ink-500);max-width:720px}

.section-block{padding:40px 0;border-top:1px solid var(--line)}
.section-block:first-of-type{border-top:0;padding-top:0}
.section-block h2{
  font-size:clamp(21px,2.2vw,27px);line-height:1.35;
  display:flex;gap:14px;align-items:flex-start;margin-bottom:20px;
}
.sec-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  background:var(--brand-soft);color:var(--brand-deep);
  font-family:var(--font-num);font-size:16px;font-weight:700;
  display:grid;place-items:center;
}
.section-block h2 span:last-child{padding-top:4px}
.section-block p{max-width:720px;color:var(--ink-500)}
.section-block p strong{color:var(--ink-900);font-weight:700}

.point-list{margin:22px 0 0;display:grid;gap:10px;max-width:720px}
.point-list li{
  position:relative;padding:12px 16px 12px 44px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:15px;line-height:1.7;color:var(--ink-700);
}
.point-list li::before{
  content:"";position:absolute;left:18px;top:21px;
  width:14px;height:8px;border-left:2px solid var(--brand-deep);border-bottom:2px solid var(--brand-deep);
  transform:rotate(-45deg);border-radius:1px;
}

.callout{
  margin:26px 0 0;padding:18px 22px;border-radius:var(--radius-card);
  background:var(--brand-soft);border-left:3px solid var(--brand);
  font-size:15px;line-height:1.8;color:#0B4A2C;max-width:720px;
}
.callout.warn{background:var(--accent-soft);border-left-color:var(--accent);color:#6B4410}

.inline-fig{margin:30px 0 0;max-width:720px}
.inline-fig img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.inline-fig figcaption{font-size:13px;color:var(--ink-300);margin-top:10px;line-height:1.7}

/* ============ SCENARIO / TAG FLOW ============ */
.scenario{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:72px 0}
.section-head{max-width:720px;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,2.8vw,34px);margin:14px 0 14px;line-height:1.3}
.section-head p{color:var(--ink-500);font-size:16.5px}
.tag-flow{display:flex;flex-wrap:wrap;gap:12px}
.tag-flow li{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 20px;border-radius:var(--radius-pill);
  background:var(--paper);border:1px solid var(--line);
  font-size:15px;font-weight:500;color:var(--ink-700);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.tag-flow li:hover{transform:translateY(-2px);border-color:var(--ink-300);color:var(--ink-900);box-shadow:var(--shadow-2)}
.tag-flow li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);flex:0 0 auto}

/* ============ RELATED CARDS ============ */
.related{padding:76px 0 20px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px}
.r-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.r-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2h);border-color:var(--ink-300)}
.r-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.r-card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.r-card h3{font-size:17.5px;line-height:1.5;color:var(--ink-900)}
.r-card:hover h3{text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;text-underline-offset:4px}
.r-card p{font-size:14.5px;line-height:1.75;color:var(--ink-500);margin:0}
.r-card .r-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-300);padding-top:6px}
.r-card .r-meta svg{transition:transform .2s ease;color:var(--brand-deep)}
.r-card:hover .r-meta svg{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-section{padding:76px 0 20px}
.faq-list{margin-top:30px;border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand-deep)}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--paper-3);transition:background .2s ease,transform .24s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink-700);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s ease,transform .24s ease}
.faq-item.is-open .faq-icon{background:var(--brand);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::before{background:#04231A}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{overflow:hidden;max-height:0;transition:max-height .28s ease}
.faq-a-inner{padding:0 4px 24px;font-size:15.5px;line-height:1.85;color:var(--ink-500);max-width:760px}

/* ============ CTA ============ */
.cta-band{padding:40px 0 90px}
.cta-inner{
  position:relative;overflow:hidden;
  background:var(--ink-900);border-radius:20px;
  padding:56px 56px 60px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
}
.cta-inner::after{
  content:"";position:absolute;right:-100px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(231,163,58,.26),rgba(231,163,58,0) 70%);
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);position:relative;z-index:2}
.cta-inner p{color:#AFBDB7;margin-top:14px;font-size:16px;position:relative;z-index:2}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;position:relative;z-index:2}
.cta-actions .link-arrow{color:var(--brand)}
.cta-actions .link-arrow:hover{color:#fff}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink-900);color:#9FB0A9;padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.08);color:var(--brand)}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700}
.footer-desc{line-height:1.85;color:#8A9A93;font-size:14px;margin:0}
.footer-title{color:#fff;font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:16px}
.footer-list{display:grid;gap:11px}
.footer-list a{color:#9FB0A9;transition:color .18s ease}
.footer-list a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#76867F;
}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .32s ease,transform .32s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ============ RESPONSIVE ============ */
@media (max-width:1280px){
  .channel-side .hot-tags{max-width:280px}
}
@media (max-width:1080px){
  .search-mini input{width:110px}
  .layout-grid{grid-template-columns:210px minmax(0,1fr);gap:40px}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px;padding:56px 0 60px}
  .hero-figure{order:-1}
  .hero-sub{max-width:none}
  .layout-grid{grid-template-columns:1fr;gap:34px}
  .toc{position:static;top:auto}
  .toc-title{display:none}
  .toc-list{
    display:flex;gap:10px;overflow-x:auto;border-left:0;
    padding-bottom:6px;scrollbar-width:none;
  }
  .toc-list::-webkit-scrollbar{display:none}
  .toc-list li{flex:0 0 auto}
  .toc-list a{
    padding:9px 16px;margin-left:0;border-left:0;border-radius:var(--radius-pill);
    background:var(--paper-2);border:1px solid var(--line);white-space:nowrap;
  }
  .toc-list a.is-active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep)}
  .toc-note{display:none}
  .related-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;padding:44px 36px 48px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:860px){
  .channel-side{display:none}
  .search-mini{display:none}
  .nav-toggle{display:grid}
  .quick-nav{display:none}
  .channel-bar{max-height:none;border-top:0}
  .channel-inner{height:0;min-height:0;padding:0}
  .site-header.is-scrolled .channel-bar{max-height:none;opacity:1}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .hero-grid{padding:44px 0 50px}
  .trust-bar{margin-top:28px;padding-top:20px;gap:0}
  .trust-bar li{padding:0 14px}
  .trust-bar b{font-size:18px}
  .trust-bar span{font-size:11.5px}
  .layout{padding:52px 0 12px}
  .scenario,.related,.faq-section{padding:56px 0 12px}
  .cta-band{padding:24px 0 64px}
  .cta-inner{padding:36px 24px 40px;border-radius:16px}
  .section-block{padding:30px 0}
  .section-block h2{font-size:20px;gap:12px}
  .sec-num{width:34px;height:34px;font-size:15px}
  .point-list li{padding:11px 14px 11px 40px;font-size:14.5px}
  .point-list li::before{left:16px;top:19px}
  .related-grid{grid-template-columns:1fr;gap:18px}
  .breadcrumb ol{height:auto;padding:14px 0}
}
@media (max-width:520px){
  .logo-text{font-size:16px}
  .hero h1{font-size:30px}
  .hero-actions{gap:16px}
  .hero-actions .btn{width:100%}
  .trust-bar li{width:50%;padding:0 0 14px 14px}
  .trust-bar li:nth-child(odd){padding-left:0;border-left:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:15.5px;padding:18px 2px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B0F0E;
  --ink-700:#1C2321;
  --ink-500:#3E4A46;
  --ink-300:#7C8A85;
  --line:#E4E8E5;
  --paper:#FFFFFF;
  --paper-2:#F4F6F4;
  --paper-3:#ECEFEC;
  --brand:#0FBF6B;
  --brand-deep:#078A4C;
  --brand-soft:#E4F7EC;
  --accent:#E7A33A;
  --accent-soft:#FBF0DC;
  --danger:#C6432F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,15,14,.04);
  --shadow-2:0 12px 32px rgba(11,15,14,.06);
  --shadow-hover:0 1px 2px rgba(11,15,14,.05),0 18px 40px rgba(11,15,14,.10);
  --container:1240px;
  --font-sans:system-ui,-apple-system,"Segoe UI","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink-900);text-decoration:none;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-0.02em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;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(--brand);color:#062015;}
.btn-primary:hover{background:#12cf74;color:#062015;transform:translateY(-1px);box-shadow:0 10px 24px rgba(15,191,107,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;border-color:var(--ink-900);color:var(--ink-900);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);}
.btn-ink{background:var(--ink-900);color:#fff;}
.btn-ink:hover{background:var(--ink-700);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(11,15,14,.22);}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-lg{padding:16px 28px;font-size:16px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-deep);
  border-bottom:2px solid transparent;transition:border-color .18s ease,gap .18s ease;
}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover{border-bottom-color:var(--brand);gap:9px;color:var(--brand-deep);}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:var(--paper);
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px rgba(11,15,14,.06);
}
.header-top{padding:10px 0;transition:padding .2s ease;}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:var(--ink-900);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.logo-text{
  font-size:18px;font-weight:700;letter-spacing:-0.01em;color:var(--ink-900);
  transition:font-size .2s ease;
}
.is-scrolled .logo-text{font-size:16px;}
.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-btn);
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--ink-700);background:var(--paper);
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand-deep);background:var(--brand-soft);}
.menu-toggle{display:none;}
.header-bottom{border-top:1px solid var(--line);background:var(--paper);transition:padding .2s ease;}
.header-bottom-inner{display:flex;align-items:center;gap:22px;padding:7px 24px;}
.quick-nav{display:flex;align-items:center;gap:24px;flex:none;}
.quick-nav a{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-500);
  padding:6px 0;transition:color .18s ease;
}
.quick-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.quick-nav a:hover{color:var(--ink-900);}
.quick-nav a:hover::after{transform:scaleX(1);}
.quick-nav a.active{color:var(--ink-900);}
.quick-nav a.active::after{transform:scaleX(1);}
.nav-search{
  flex:1;max-width:280px;margin-left:auto;position:relative;
}
.nav-search input{
  width:100%;height:36px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:var(--paper-2);
  padding:0 14px;font-size:14px;color:var(--ink-900);
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.nav-search input::placeholder{color:var(--ink-300);}
.nav-search input:focus{
  outline:none;background:var(--paper);border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(15,191,107,.14);
}
.hot-tags{display:flex;align-items:center;gap:8px;flex:none;}
.hot-tags .tag-label{font-size:13px;color:var(--ink-300);}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:500;line-height:1;
  padding:7px 12px;border-radius:var(--radius-pill);
  background:var(--paper-3);color:var(--ink-500);
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.tag:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px);}

/* 搜索下拉面板 */
.search-panel{
  display:none;border-top:1px solid var(--line);background:var(--paper);
}
.search-panel.open{display:block;}
.search-panel-inner{
  max-width:var(--container);margin:0 auto;padding:18px 24px;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
}
.search-panel-inner .panel-title{font-size:14px;font-weight:600;color:var(--ink-500);margin-right:4px;}

/* 移动抽屉 */
.backdrop{
  position:fixed;inset:0;background:rgba(11,15,14,.5);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;z-index:90;
}
.backdrop.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:var(--paper);z-index:100;
  transform:translateX(102%);transition:transform .26s ease;
  padding:20px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink-900);}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{
  padding:14px 4px;font-size:16px;font-weight:600;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand-deep);}
.drawer-sub{margin-top:22px;}
.drawer-sub h4{font-size:13px;color:var(--ink-300);font-weight:600;margin-bottom:10px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 页面主区 ============ */
main{display:block;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-300);padding:18px 0 0;
}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb .sep{color:var(--ink-300);}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}

.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--ink-900);
  background-image:linear-gradient(105deg,rgba(11,15,14,.94) 0%,rgba(11,15,14,.84) 46%,rgba(11,15,14,.55) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;
}
.page-hero-inner{padding:66px 0 72px;max-width:900px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(15,191,107,.16);color:#7CE8B4;border:1px solid rgba(15,191,107,.35);
  margin-bottom:20px;
}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-0.025em;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.page-hero .lead{
  margin-top:20px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.78);max-width:680px;
}
.hero-meta{
  margin-top:28px;display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;
  font-size:13.5px;color:rgba(255,255,255,.62);
}
.hero-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--brand);display:inline-block;margin-right:8px;vertical-align:middle;}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 通用板块 ============ */
.section{padding:84px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:var(--paper-2);}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head.row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;
}
.section-kicker{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.12em;
  color:var(--brand-deep);text-transform:uppercase;margin-bottom:12px;
}
.section-title{
  font-size:clamp(24px,2.8vw,34px);font-weight:800;letter-spacing:-0.025em;
}
.section-sub{margin-top:14px;font-size:16px;color:var(--ink-500);line-height:1.9;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:13px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--accent) 0%,var(--line) 100%);
}
.timeline-item{position:relative;padding-bottom:36px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-node{
  position:absolute;left:-34px;top:-2px;
  width:28px;height:28px;border-radius:9px;
  background:var(--accent-soft);color:#9A6612;
  font-family:var(--font-mono);font-size:12.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(231,163,58,.45);
}
.timeline-body{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.timeline-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink-300);}
.timeline-body h3{font-size:18px;margin-bottom:8px;}
.timeline-body p{font-size:15.5px;color:var(--ink-500);line-height:1.85;}
.timeline-body .mini-tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 卡片网格 ============ */
.card-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.g-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.g-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink-300);}
.g-card.wide{grid-column:span 2;}
.g-card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper-3);
}
.g-card.wide .g-card-media{aspect-ratio:2/1;}
.g-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.g-card:hover .g-card-media img{transform:scale(1.04);}
.g-card-media .badge{
  position:absolute;left:14px;top:14px;
  background:rgba(251,240,220,.95);color:#8C5A0F;
  font-size:12px;font-weight:700;padding:6px 12px;border-radius:var(--radius-pill);
  backdrop-filter:blur(4px);
}
.g-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;gap:10px;}
.g-card-title{font-size:18px;line-height:1.45;font-weight:700;}
.g-card:hover .g-card-title{color:var(--brand-deep);}
.g-card-desc{font-size:15px;color:var(--ink-500);line-height:1.8;flex:1;}
.g-card-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;margin-top:2px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-300);
}
.g-card-foot .meta{font-family:var(--font-mono);color:var(--accent);font-weight:600;letter-spacing:.02em;}
.g-card-foot .go{color:var(--ink-500);font-weight:600;transition:transform .2s ease,color .2s ease;}
.g-card:hover .g-card-foot .go{color:var(--brand-deep);transform:translateX(4px);}

/* ============ 数字条 / 场景 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.stat-strip .stat{
  padding:26px 24px;border-right:1px solid var(--line);
}
.stat-strip .stat:last-child{border-right:0;}
.stat-num{
  font-family:var(--font-mono);font-size:30px;font-weight:800;color:var(--ink-900);
  letter-spacing:-0.02em;line-height:1.2;
}
.stat-num small{font-size:15px;font-weight:700;color:var(--brand-deep);margin-left:2px;}
.stat-label{margin-top:6px;font-size:14px;color:var(--ink-500);line-height:1.7;}

.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;}
.chip{
  font-size:14px;font-weight:600;padding:9px 16px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-deep);border:1px solid rgba(15,191,107,.22);
}
.chip.neutral{background:var(--paper-3);color:var(--ink-500);border-color:var(--line);}

/* 分栏：左标签右内容 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-media{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-2);aspect-ratio:4/3;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.split-list li{
  display:flex;gap:12px;font-size:15.5px;color:var(--ink-500);line-height:1.85;
}
.split-list li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:11px;border-radius:3px;background:var(--brand);
}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--line);max-width:900px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--ink-900);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand-deep);}
.faq-icon{
  position:relative;flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);background:var(--paper-2);
  transition:background-color .2s ease,border-color .2s ease,transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-700);border-radius:2px;
  transform:translate(-50%,-50%);transition:opacity .2s ease,background-color .2s ease;
}
.faq-icon::before{width:11px;height:1.8px;}
.faq-icon::after{width:1.8px;height:11px;}
.faq-item.open .faq-icon{background:var(--brand);border-color:var(--brand);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:#062015;}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{
  height:0;overflow:hidden;transition:height .24s ease;
}
.faq-a-inner{padding:0 4px 22px;font-size:16px;line-height:1.85;color:var(--ink-500);max-width:780px;}

/* ============ 相关链接 ============ */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.link-card{
  display:flex;flex-direction:column;gap:8px;
  padding:24px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--paper);box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand);}
.link-card .lc-kicker{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--accent);}
.link-card .lc-title{font-size:17px;font-weight:700;}
.link-card .lc-desc{font-size:14.5px;color:var(--ink-500);line-height:1.8;}
.link-card:hover .lc-title{color:var(--brand-deep);}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--ink-900);color:#fff;border-radius:var(--radius-card);
  padding:52px 56px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,191,107,.28) 0%,rgba(15,191,107,0) 68%);
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);max-width:520px;}
.cta-band p{margin-top:10px;font-size:15.5px;color:rgba(255,255,255,.7);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-outline{border-color:rgba(255,255,255,.5);color:#fff;}
.cta-band .btn-outline:hover{border-color:var(--brand);color:var(--brand);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);margin-top:0;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:#fff;color:var(--ink-900);}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color .18s ease;}
.footer-list a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 动效 ============ */
.fade-up{opacity:0;transform:translateY(14px);transition:opacity .32s ease,transform .32s ease;}
.fade-up.visible{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .hot-tags{display:none;}
}
@media (max-width:1024px){
  .container{padding:0 20px;}
  .header-bottom-inner{padding:7px 20px;gap:16px;}
  .quick-nav{gap:18px;}
  .nav-search{max-width:200px;}
  .section{padding:68px 0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .g-card.wide{grid-column:span 2;}
  .link-cards{grid-template-columns:1fr 1fr;}
  .split{grid-template-columns:1fr;gap:32px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-strip .stat:nth-child(2){border-right:0;}
  .stat-strip .stat:nth-child(1),.stat-strip .stat:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .nav-search,.quick-nav{display:none;}
  .header-bottom{display:none;}
  .menu-toggle{display:flex;}
  .header-actions .btn-sm{display:none;}
  .page-hero-inner{padding:46px 0 52px;}
  .section{padding:52px 0;}
  .section-head.row{flex-direction:column;align-items:flex-start;gap:14px;}
  .card-grid{grid-template-columns:1fr;}
  .g-card.wide{grid-column:span 1;}
  .link-cards{grid-template-columns:1fr;}
  .cta-band{padding:36px 26px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .timeline{padding-left:30px;}
  .timeline::before{left:11px;}
  .timeline-node{left:-30px;width:24px;height:24px;font-size:11.5px;border-radius:8px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-strip .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat-strip .stat:last-child{border-bottom:0;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .header-bottom-inner{padding:7px 16px;}
  .btn{padding:13px 18px;font-size:14.5px;}
  .btn-lg{padding:14px 20px;font-size:15px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .g-card-title{font-size:17px;}
  .timeline-body{padding:18px 18px;}
}

/* roulang page: category3 */
:root{
  --ink-900:#0B0F0E;
  --ink-700:#1C2321;
  --ink-500:#3E4A46;
  --ink-300:#7C8A85;
  --line:#E4E8E5;
  --paper:#FFFFFF;
  --paper-2:#F4F6F4;
  --paper-3:#ECEFEC;
  --brand:#0FBF6B;
  --brand-deep:#078A4C;
  --brand-soft:#E4F7EC;
  --accent:#E7A33A;
  --accent-soft:#FBF0DC;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,15,14,.04);
  --shadow-2:0 12px 32px rgba(11,15,14,.06);
  --shadow-hover:0 1px 2px rgba(11,15,14,.05), 0 18px 40px rgba(11,15,14,.12);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink-900);font-weight:800;letter-spacing:-.02em;line-height:1.28;margin:0}
h1{font-size:clamp(32px,4.6vw,54px);line-height:1.12}
h2{font-size:clamp(23px,2.6vw,32px)}
h3{font-size:19px;font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--soft{background:var(--paper-2)}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(11,15,14,.06)}
.header-inner{display:flex;align-items:center;gap:24px;height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--brand);color:#062a19;
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
  box-shadow:0 6px 16px rgba(15,191,107,.28);
}
.logo-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink-900);
  transition:font-size .2s ease;
}
.site-header.is-scrolled .logo-text{font-size:16px}
.header-mid{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--ink-300);
  letter-spacing:.02em;
}
.header-mid .dot{width:5px;height:5px;border-radius:50%;background:var(--brand);display:inline-block}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-700);
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.icon-btn:hover{border-color:var(--ink-300);background:var(--paper-2);color:var(--ink-900)}
.menu-toggle{display:none}

.header-bottom{border-top:1px solid var(--line);overflow:hidden;height:46px;transition:height .2s ease,opacity .2s ease,border-color .2s ease}
.site-header.is-scrolled .header-bottom{height:0;opacity:0;border-color:transparent}
.header-bottom-inner{display:flex;align-items:center;gap:18px;height:46px}
.quick-nav{display:flex;align-items:center;gap:4px}
.quick-nav a{
  position:relative;
  padding:6px 12px;
  font-size:14.5px;
  color:var(--ink-500);
  border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.quick-nav a:hover{color:var(--ink-900);background:var(--paper-2)}
.quick-nav a.is-active{color:var(--ink-900);font-weight:700}
.quick-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-search{margin-left:auto}
.header-search input{
  width:190px;height:32px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--paper-2);
  font-size:13.5px;
  color:var(--ink-700);
  transition:width .2s ease,border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.header-search input::placeholder{color:var(--ink-300)}
.header-search input:focus{
  outline:none;
  width:250px;
  background:var(--paper);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,191,107,.14);
}
.hot-tags{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.hot-tags::-webkit-scrollbar{display:none}
.hot-tags a{
  flex:0 0 auto;
  padding:4px 12px;
  font-size:12.5px;
  color:var(--ink-500);
  background:var(--paper-3);
  border-radius:var(--radius-pill);
  transition:background .18s ease,color .18s ease;
}
.hot-tags a:hover{background:var(--ink-900);color:#fff}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  top:56px;left:0;right:0;bottom:0;
  z-index:190;
  background:var(--paper);
  padding:20px 24px 40px;
  overflow-y:auto;
  transform:translateY(-10px);
  opacity:0;
  pointer-events:none;
  transition:transform .2s ease,opacity .2s ease;
}
.mobile-drawer.is-open{transform:none;opacity:1;pointer-events:auto}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px}
.drawer-nav a{
  padding:12px 14px;
  font-size:16px;
  color:var(--ink-700);
  border-radius:var(--radius-btn);
  transition:background .18s ease,color .18s ease;
}
.drawer-nav a:hover{background:var(--paper-2)}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700}
.drawer-search{margin-bottom:22px}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--paper-2);
  font-size:15px;
}
.drawer-search input:focus{outline:none;border-color:var(--brand);background:var(--paper);box-shadow:0 0 0 3px rgba(15,191,107,.14)}
.drawer-tags-title{display:block;font-size:13px;color:var(--ink-300);margin-bottom:12px}
.drawer-tags .hot-tags{flex-wrap:wrap}

/* ============ 按钮与链接 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--brand);color:#04301c;box-shadow:0 8px 20px rgba(15,191,107,.26)}
.btn-primary:hover{background:#14cf76;transform:translateY(-1px);box-shadow:0 14px 30px rgba(15,191,107,.32)}
.btn-primary:active{transform:none;box-shadow:var(--shadow-1)}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink-900)}
.btn-light:hover{background:var(--paper-3);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:56px;padding:0 28px;font-size:16px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-deep);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;
  transition:color .18s ease;
}
.link-arrow:hover{color:var(--ink-900)}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  font-size:12.5px;font-weight:600;
  border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-deep);
}
.badge-accent{background:var(--accent-soft);color:#8A5A11}

/* ============ 首屏 ============ */
.page-hero{padding:72px 0 80px;background:var(--paper);position:relative;overflow:hidden}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(15,191,107,.12),rgba(15,191,107,0) 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-deep);
  background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--radius-pill);
  margin-bottom:20px;
}
.hero-copy h1{margin-bottom:20px}
.hero-sub{font-size:17.5px;color:var(--ink-500);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-bottom:36px}
.trust-strip{
  display:flex;flex-wrap:wrap;align-items:center;
  border-top:1px solid var(--line);
  padding-top:20px;
}
.trust-strip li{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink-500);
  padding-right:20px;margin-right:20px;
  border-right:1px solid var(--line);
}
.trust-strip li:last-child{border-right:0;margin-right:0;padding-right:0}
.trust-strip li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand)}
.hero-media{position:relative;margin:0}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
}
.media-badge{
  position:absolute;left:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;
  font-size:12.5px;font-weight:700;
  color:#5A3B06;
  background:var(--accent-soft);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-1);
}

/* ============ 通用板块头 ============ */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:40px;
}
.section-head h2{margin-bottom:12px}
.section-desc{font-size:16px;color:var(--ink-500);max-width:640px}
.section-head--stack{flex-direction:column;align-items:flex-start}

/* ============ 分类速查卡 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{
  display:flex;flex-direction:column;
  background:var(--paper);
  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;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink-300)}
.cat-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.cat-card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.cat-card h3{font-size:17px}
.cat-card p{font-size:14.5px;color:var(--ink-500);line-height:1.8;flex:1}
.cat-card .badge{align-self:flex-start}

/* ============ 步骤自查 ============ */
.step-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.step{
  display:flex;gap:22px;
  padding:28px 26px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink-300)}
.step-num{
  flex:0 0 auto;
  width:86px;height:86px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-family:var(--font-mono);
  font-size:40px;
  font-weight:800;
  letter-spacing:-.04em;
  display:flex;align-items:center;justify-content:center;
}
.step-body h3{margin-bottom:10px}
.step-body p{font-size:15.5px;color:var(--ink-500);line-height:1.85}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;
  padding:18px 4px;
  text-align:left;
  font-size:17px;font-weight:700;color:var(--ink-900);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand-deep)}
.faq-icon{
  flex:0 0 auto;position:relative;
  width:28px;height:28px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  transition:background .2s ease,border-color .2s ease,transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--ink-700);
  transform:translate(-50%,-50%);
  transition:transform .24s ease,background .2s ease;
}
.faq-icon::before{width:12px;height:2px;border-radius:2px}
.faq-icon::after{width:2px;height:12px;border-radius:2px}
.faq-item.is-open .faq-icon{background:var(--brand-soft);border-color:var(--brand);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::before{background:var(--brand-deep)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);background:var(--brand-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{
  padding:0 4px 22px;
  font-size:16px;line-height:1.85;color:var(--ink-500);
  max-width:840px;
}

/* ============ CTA 深色带 ============ */
.cta-band{background:var(--ink-900);color:#D5DEDA;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;left:-120px;bottom:-200px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(15,191,107,.22),rgba(15,191,107,0) 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:72px 0;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px}
.cta-band p{font-size:16px;color:#9DAAA5;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ============ 继续访问 ============ */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.link-card{
  display:flex;flex-direction:column;gap:10px;
  padding:26px 24px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--ink-300)}
.link-card-title{font-size:17px;font-weight:700;color:var(--ink-900)}
.link-card-desc{font-size:14.5px;color:var(--ink-500);line-height:1.8}
.link-card-arrow{
  margin-top:6px;
  font-size:14px;font-weight:700;color:var(--brand-deep);
  transition:transform .18s ease;
}
.link-card:hover .link-card-arrow{transform:translateX(4px)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:#C8D2CE;padding:72px 0 0}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{
  width:28px;height:28px;border-radius:8px;
  background:var(--brand);color:#062a19;
  display:flex;align-items:center;justify-content:center;
}
.footer-brand .logo-text{color:#fff;font-size:18px;font-weight:700}
.footer-title{color:#fff;font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14.5px;color:#A9B5B1;transition:color .18s ease}
.footer-list a:hover{color:var(--brand)}
.footer-desc{font-size:14.5px;color:#96A29E;line-height:1.85;max-width:380px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:26px 0;
  font-size:13px;color:#7C8A85;
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:1024px){
  .header-mid{display:none}
  .header-search input{width:160px}
  .hot-tags{display:none}
  .hero-grid{gap:40px}
  .step-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .header-bottom{display:none}
  .menu-toggle{display:flex}
  .header-search{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .page-hero{padding:44px 0 64px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;padding:56px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .cat-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .step{padding:22px 20px;gap:16px}
  .step-num{width:64px;height:64px;font-size:30px}
  .trust-strip li{padding-right:14px;margin-right:14px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:14px}
  .hero-actions .btn{width:100%}
  .hero-sub{font-size:16px}
  .trust-strip{gap:0;flex-direction:column;align-items:flex-start}
  .trust-strip li{border-right:0;padding:6px 0;margin-right:0}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px}
  .step{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
}