/* roulang page: index */
:root{
  --brand-900:#0F2E2A;--brand-700:#16463F;--brand-500:#1F6B5E;
  --accent-500:#F2622E;--accent-600:#D94E1F;--teal-400:#2FB8A3;
  --paper:#FBFAF7;--surface:#FFFFFF;--ink:#1B2422;--ink-2:#5C6B67;--muted:#8A9490;
  --line:#E7E3DA;
  --radius-btn:10px;--radius-card:14px;--radius-lg:16px;--radius-pill:999px;
  --sh-1:0 1px 2px rgba(15,46,42,.06);
  --sh-2:0 8px 24px -12px rgba(15,46,42,.14);
  --sh-3:0 18px 40px -18px rgba(15,46,42,.22);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1200px;
  --sec-pad:80px;
}
*,*::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:16px;line-height:1.9;color:var(--ink);background:var(--paper);letter-spacing:.005em}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:0}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,98,46,.35);border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec-pad) 0}
.section--tight{padding:56px 0}
.section--dark{background:var(--brand-900);color:var(--paper)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:32px}
.sec-head .sec-desc{margin:8px 0 0;color:var(--ink-2);font-size:15px;line-height:1.8;max-width:720px}
.sec-head--dark .sec-desc{color:rgba(251,250,247,.72)}
.text-link{color:var(--brand-500);font-size:15px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s ease,text-underline-offset .2s ease}
.text-link:hover{text-decoration:underline;text-underline-offset:3px}
.text-link--light{color:var(--teal-400)}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper);transition:box-shadow .2s ease}
.topbar{background:var(--brand-900);color:var(--paper)}
.topbar__inner{display:flex;align-items:center;gap:20px;min-height:42px;padding:6px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--paper);white-space:nowrap}
.brand__mark{width:26px;height:26px;border-radius:8px;background:var(--accent-500);display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;font-family:var(--font-num)}
.hot-tags{display:flex;gap:8px;flex:1;overflow:hidden}
.hot-tag{font-size:13px;color:var(--teal-400);border:1px solid rgba(47,184,163,.4);border-radius:var(--radius-pill);padding:2px 10px;white-space:nowrap;transition:background .2s ease,color .2s ease}
.hot-tag:hover{background:rgba(47,184,163,.12)}
.topbar__actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-btn);padding:0 18px;height:40px;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn--primary{background:var(--accent-500);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--accent-600);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:none}
.btn--ghost{background:transparent;color:var(--paper);border-color:rgba(251,250,247,.45)}
.btn--ghost:hover{border-color:var(--paper);background:rgba(251,250,247,.1)}
.btn--outline{background:transparent;color:var(--brand-500);border-color:var(--brand-500)}
.btn--outline:hover{background:rgba(31,107,94,.08)}
.btn--line{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--line:hover{border-color:var(--brand-500);color:var(--brand-500)}
.btn--sm{height:32px;padding:0 14px;font-size:13px;border-radius:9px}
.btn--block{width:100%}
.btn--lg{height:48px;padding:0 26px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none}

.channelbar{border-bottom:1px solid var(--line);background:var(--paper)}
.channelbar__inner{display:flex;align-items:center;gap:24px;min-height:54px}
.channel-nav{display:flex;align-items:center;gap:26px;flex:1}
.channel-nav a{position:relative;font-size:15px;font-weight:600;color:var(--ink-2);padding:14px 0;transition:color .2s ease}
.channel-nav a:hover{color:var(--ink)}
.channel-nav a.is-active{color:var(--ink)}
.channel-nav a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;background:var(--accent-500);border-radius:2px}
.search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-pill);padding:0 12px;height:38px;width:240px;transition:border-color .2s ease,box-shadow .2s ease}
.search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(31,107,94,.12)}
.search input{border:0;outline:none;background:transparent;width:100%;font-size:14px}
.search svg{flex:none}
.hamburger{display:none;width:40px;height:40px;border:1px solid var(--line);background:var(--surface);border-radius:10px;cursor:pointer;align-items:center;justify-content:center}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.site-header.is-scrolled{box-shadow:0 6px 20px -12px rgba(15,46,42,.16)}
.site-header.is-scrolled .topbar{display:none}
.site-header.is-scrolled .channelbar__inner{min-height:56px}

.drawer-mask{position:fixed;inset:0;background:rgba(15,46,42,.5);opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;background:var(--surface);z-index:100;transform:translateX(100%);transition:transform .24s ease;padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer h3{font-size:14px;color:var(--ink-2);font-weight:600}
.drawer nav{display:flex;flex-direction:column;gap:2px}
.drawer nav a{padding:12px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600}
.drawer .hot-tags{flex-wrap:wrap;overflow:visible}
.drawer .hot-tag{border-color:var(--line);color:var(--brand-700)}
.drawer-close{align-self:flex-end;border:1px solid var(--line);background:var(--surface);border-radius:10px;width:36px;height:36px;cursor:pointer;font-size:18px;line-height:1}

/* ============ hero ============ */
.hero{position:relative;background:var(--brand-900);color:var(--paper);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(102deg,rgba(15,46,42,.96) 0%,rgba(15,46,42,.86) 42%,rgba(15,46,42,.42) 100%),url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center right;opacity:.95}
.hero__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:72px 0 76px;min-height:560px}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--teal-400);border:1px solid rgba(47,184,163,.45);border-radius:var(--radius-pill);padding:4px 12px;margin-bottom:18px}
.hero h1{font-size:42px;line-height:1.25;color:#fff}
.hero h1 .hl{color:var(--teal-400)}
.hero__sub{margin:18px 0 0;font-size:17px;line-height:1.9;color:rgba(251,250,247,.82);max-width:520px}
.hero__actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero__points{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero__point{font-size:14px;color:rgba(251,250,247,.78);display:flex;align-items:center;gap:8px}
.hero__point b{font-family:var(--font-num);font-size:18px;color:#fff}
.hero__figure{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--sh-3);border:1px solid rgba(251,250,247,.16)}
.hero__figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.hero__figure:hover img{transform:scale(1.04)}

/* ============ KPI ============ */
.kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--sh-1);margin-top:-38px;position:relative;z-index:5}
.kpi__item{padding:26px 24px;border-right:1px solid var(--line)}
.kpi__item:last-child{border-right:0}
.kpi__num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--brand-700);line-height:1.2}
.kpi__num span{font-size:15px;margin-left:2px}
.kpi__label{font-size:14px;color:var(--ink-2);margin-top:6px}

/* ============ compare table ============ */
.cmp-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--sh-1)}
.cmp-table{width:100%;border-collapse:collapse;min-width:760px}
.cmp-table th,.cmp-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:15px;vertical-align:middle}
.cmp-table thead th{background:var(--paper);position:relative;vertical-align:top;padding-top:22px;padding-bottom:22px}
.cmp-table thead th.reco{background:#FDF1EB}
.cmp-table thead th.reco::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent-500)}
.plan-name{font-size:17px;font-weight:700}
.plan-price{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--brand-700);margin:6px 0 2px}
.plan-price span{font-size:13px;color:var(--ink-2);font-family:var(--font-sans);font-weight:400}
.plan-note{font-size:13px;color:var(--ink-2);margin-bottom:12px}
.badge-reco{display:inline-block;font-size:12px;background:var(--accent-500);color:#fff;border-radius:var(--radius-pill);padding:1px 10px;margin-left:8px;font-weight:600;vertical-align:middle}
.cmp-table td.val{font-family:var(--font-num);font-weight:700;font-size:16px;color:var(--brand-700)}
.cmp-table td.val.na{color:var(--muted);font-weight:400;font-family:var(--font-sans)}
.cmp-table tbody tr:hover{background:#FCFBF8}
.cmp-table tbody tr td.reco{background:#FDF7F3}
.cmp-cards{display:none;gap:16px}
.cmp-card{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);padding:20px;box-shadow:var(--sh-1)}
.cmp-card.is-reco{border-color:var(--accent-500);box-shadow:var(--sh-2)}
.cmp-card h3{font-size:18px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.cmp-card ul{margin-top:14px;border-top:1px solid var(--line)}
.cmp-card li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.7}
.cmp-card li span:last-child{font-family:var(--font-num);font-weight:700;color:var(--brand-700);white-space:nowrap}
.cmp-card li .na{font-family:var(--font-sans);font-weight:400;color:var(--muted)}

/* ============ level cards ============ */
.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.level-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.level-card.is-active{transform:scale(1.03);border-color:var(--accent-500);box-shadow:var(--sh-3)}
.level-card.is-active:hover{transform:scale(1.03) translateY(-2px)}
.level-badge{align-self:flex-start;font-size:12px;font-weight:600;border-radius:var(--radius-pill);padding:2px 12px;background:var(--paper);border:1px solid var(--line);color:var(--brand-700)}
.level-card.is-active .level-badge{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.level-card h3{font-size:20px;margin-top:14px}
.level-figure{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--brand-700);line-height:1.2;margin-top:10px}
.level-figure span{font-size:14px;font-family:var(--font-sans);font-weight:400;color:var(--ink-2);margin-left:4px}
.level-card ul{margin:16px 0 22px;display:flex;flex-direction:column;gap:8px}
.level-card li{font-size:15px;color:var(--ink-2);padding-left:20px;position:relative;line-height:1.8}
.level-card li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--teal-400)}
.level-card .btn{margin-top:auto}

/* ============ content preview ============ */
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.pcard__media{position:relative;overflow:hidden}
.pcard__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s ease}
.pcard:hover .pcard__media img{transform:scale(1.04)}
.pcard__tag{position:absolute;top:12px;left:12px;font-size:12px;font-weight:600;background:var(--accent-500);color:#fff;border-radius:var(--radius-pill);padding:2px 10px}
.pcard__tag--teal{background:var(--teal-400)}
.pcard__mask{position:absolute;inset:0;background:rgba(15,46,42,.42);display:flex;align-items:flex-end;padding:14px;color:#fff;font-size:14px;font-weight:600}
.pcard__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.pcard__body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px}
.pcard__body p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:10px 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.pcard__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.chip{display:inline-flex;align-items:center;font-size:12px;border:1px solid var(--line);background:var(--paper);color:var(--ink-2);border-radius:var(--radius-pill);padding:2px 10px;line-height:1.6}
.chip--num{font-family:var(--font-num);font-weight:700;color:var(--brand-700)}

/* ============ news (cms) ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{display:grid;grid-template-columns:180px 1fr;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:16px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD6C9}
.news-card__media img{width:180px;height:120px;object-fit:cover;border-radius:12px}
.news-card__body{display:flex;flex-direction:column}
.news-card__body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__body p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:8px 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.news-card__meta .chip{font-size:12px}
.empty-state{border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--surface);padding:56px 24px;text-align:center}
.empty-state__icon{width:52px;height:52px;margin:0 auto 16px;border:1.5px solid var(--line);border-radius:14px;display:grid;place-items:center;color:var(--brand-500)}
.empty-state p{color:var(--ink-2);margin-bottom:8px}

/* ============ voices ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.voice{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand-500);border-radius:var(--radius-card);padding:24px;box-shadow:var(--sh-1)}
.voice p{font-size:15px;line-height:1.9;color:var(--ink)}
.voice__who{margin-top:14px;font-size:13px;color:var(--ink-2);display:flex;align-items:center;gap:10px}
.voice__who b{font-weight:600;color:var(--ink)}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--brand-900);color:var(--paper);display:grid;place-items:center;font-size:12px;font-family:var(--font-num)}

/* ============ faq ============ */
.faq{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--sh-1);overflow:hidden}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 22px;font-size:16px;font-weight:600;border-left:3px solid transparent;transition:background .2s ease,border-color .2s ease}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:#FCFBF8}
.faq details[open] summary{border-left-color:var(--accent-500);color:var(--brand-700)}
.faq .sign{flex:none;width:22px;height:22px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font-size:14px;color:var(--ink-2);font-family:var(--font-num)}
.faq details[open] .sign{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.faq .answer{padding:0 22px 20px 25px;font-size:15px;color:var(--ink-2);line-height:1.9}

/* ============ cta band ============ */
.cta-band{background:var(--brand-900);color:var(--paper);border-radius:var(--radius-lg);padding:48px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.cta-band h2{font-size:30px;color:#fff}
.cta-band ul{margin:18px 0 0;display:flex;flex-direction:column;gap:8px}
.cta-band li{font-size:15px;color:rgba(251,250,247,.8);padding-left:18px;position:relative}
.cta-band li::before{content:"";position:absolute;left:0;top:.75em;width:6px;height:6px;border-radius:50%;background:var(--teal-400)}
.cta-form{background:rgba(251,250,247,.06);border:1px solid rgba(251,250,247,.16);border-radius:var(--radius-card);padding:24px}
.field{display:flex;gap:10px;flex-wrap:wrap}
.field input{flex:1 1 200px;height:48px;border-radius:var(--radius-btn);border:1px solid #E7E3DA;background:#fff;color:var(--ink);padding:0 14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.field input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(31,107,94,.14)}
.field-hint{font-size:13px;color:rgba(251,250,247,.66);margin:12px 0 0;line-height:1.8}
.cta-form .btn{margin-top:4px}
.cta-form .sub-link{display:inline-block;margin-top:12px;font-size:13px;color:var(--teal-400)}
.cta-form .sub-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ footer ============ */
.site-footer{background:var(--brand-900);color:var(--paper);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:64px 0 40px}
.footer-grid h4{font-size:14px;font-weight:700;margin-bottom:16px;color:#fff}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
.footer-brand .brand__mark{background:var(--accent-500);color:#fff}
.footer-grid p{font-size:14px;color:rgba(251,250,247,.72);line-height:1.9;margin:14px 0 0;max-width:320px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(251,250,247,.72);transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{border-top:1px solid rgba(251,250,247,.14);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(251,250,247,.6)}
.to-top{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(251,250,247,.28);border-radius:var(--radius-pill);padding:5px 14px;color:rgba(251,250,247,.8);background:transparent;cursor:pointer;font-size:13px;transition:background .2s ease,border-color .2s ease}
.to-top:hover{background:rgba(251,250,247,.1);border-color:rgba(251,250,247,.5)}

/* ============ responsive ============ */
@media (max-width:1199px){
  .hero h1{font-size:38px}
  .hero__inner{gap:32px}
}
@media (max-width:1024px){
  .preview-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .kpi{grid-template-columns:repeat(2,1fr)}
  .kpi__item:nth-child(2){border-right:0}
  .kpi__item:nth-child(1),.kpi__item:nth-child(2){border-bottom:1px solid var(--line)}
  .news-grid{grid-template-columns:1fr}
}
@media (max-width:991px){
  .hero__inner{grid-template-columns:1fr;padding:56px 0 64px;min-height:0}
  .hero__figure{order:-1}
  .hero__figure img{aspect-ratio:4/3}
  .level-grid{grid-template-columns:1fr}
  .level-card.is-active{transform:none}
  .voice-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .cmp-table{display:none}
  .cmp-wrap{display:none}
  .cmp-cards{display:grid}
  .channel-nav{display:none}
  .hamburger{display:flex}
  .search{width:180px}
}
@media (max-width:768px){
  :root{--sec-pad:48px}
  .container{padding:0 16px}
  .hero h1{font-size:30px}
  .sec-head h2{font-size:23px}
  .kpi__num{font-size:26px}
  .news-card{grid-template-columns:1fr}
  .news-card__media img{width:100%;height:170px}
  .hot-tags{display:none}
  .search{display:none}
  .preview-grid{grid-template-columns:1fr;gap:16px}
  .news-grid{gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}
}
@media (max-width:520px){
  .hero__actions .btn,.cta-form .btn{width:100%}
  .hero__points{gap:16px}
  .kpi{grid-template-columns:1fr}
  .kpi__item{border-right:0;border-bottom:1px solid var(--line)}
  .kpi__item:last-child{border-bottom:0}
  .cta-band{padding:24px}
  .faq summary{padding:14px 16px;font-size:15px}
  .faq .answer{padding:0 16px 18px}
}

/* roulang page: article */
:root{
  --brand-900:#0F2E2A;
  --brand-700:#16463F;
  --brand-500:#1F6B5E;
  --accent-500:#F2622E;
  --accent-600:#D94E1F;
  --teal-400:#2FB8A3;
  --paper:#FBFAF7;
  --paper-deep:#F2EFE8;
  --surface:#FFFFFF;
  --ink:#1B2422;
  --ink-2:#5C6B67;
  --muted:#8A9490;
  --line:#E7E3DA;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-lg:16px;
  --shadow-1:0 1px 2px rgba(15,46,42,.06);
  --shadow-2:0 8px 24px -12px rgba(15,46,42,.14);
  --shadow-3:0 18px 40px -18px rgba(15,46,42,.22);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --header-h:96px;
}
*,*::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:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-radius:12px}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{text-decoration:underline;text-underline-offset:3px}
a:active{color:var(--brand-700)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit;color:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:0}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.3em}
li{line-height:1.9;margin-bottom:8px}
:focus-visible{outline:3px solid rgba(242,98,46,.35);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--tight{padding:56px 0}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-2)}
.btn--accent:hover{background:var(--accent-600);color:#fff}
.btn--brand{background:var(--brand-700);color:#fff}
.btn--brand:hover{background:var(--brand-900);color:#fff}
.btn--ghost{background:transparent;color:var(--brand-700);border:1px solid var(--line)}
.btn--ghost:hover{border-color:var(--brand-500);color:var(--brand-700);background:#fff}
.btn--outline-light{background:transparent;color:var(--paper);border:1px solid rgba(251,250,247,.42)}
.btn--outline-light:hover{border-color:var(--teal-400);color:var(--teal-400)}
.btn--sm{min-height:34px;padding:0 14px;font-size:13px;border-radius:999px}
.btn--lg{min-height:52px;padding:0 28px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;transition:box-shadow .2s ease}
.topbar{background:var(--brand-900);color:var(--paper);min-height:44px}
.topbar__inner{display:flex;align-items:center;gap:24px;min-height:44px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;letter-spacing:.02em}
.brand:hover{text-decoration:none;color:#fff}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:9px;
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:700;font-family:var(--font-sans);
}
.brand__text{white-space:nowrap}
.topbar__hot{display:flex;align-items:center;gap:8px;margin-left:8px;flex:1;min-width:0;overflow:hidden}
.topbar__hot a{
  font-size:12px;line-height:1;padding:6px 11px;border-radius:999px;
  color:var(--teal-400);border:1px solid rgba(47,184,163,.32);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease
}
.topbar__hot a:hover{background:rgba(47,184,163,.12);text-decoration:none;color:#7FE0D0}
.topbar__actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.topbar__actions .link-plain{color:rgba(251,250,247,.75);font-size:14px}
.topbar__actions .link-plain:hover{color:#fff;text-decoration:none}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:40px;height:36px;border-radius:8px}
.menu-toggle span{display:block;height:2px;width:20px;margin:0 auto;background:var(--paper);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.channel-bar{background:rgba(251,250,247,.98);border-bottom:1px solid var(--line)}
.channel-bar__inner{display:flex;align-items:center;gap:24px;min-height:54px}
.channel-nav{display:flex;align-items:center;gap:26px;flex:1;min-width:0}
.channel-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:14px 0;white-space:nowrap;transition:color .2s ease
}
.channel-nav a:hover{color:var(--brand-700);text-decoration:none}
.channel-nav a.is-active{color:var(--brand-700);font-weight:700}
.channel-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;border-radius:2px;background:var(--accent-500)
}
.search-box{position:relative;display:flex;align-items:center;min-width:220px;max-width:260px;width:100%}
.search-box svg{position:absolute;left:12px;width:16px;height:16px;stroke:var(--ink-2);fill:none;stroke-width:1.8}
.search-box input{
  width:100%;height:38px;padding:0 14px 0 36px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:14px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease
}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(242,98,46,.18)}
.site-header.is-condensed .topbar{min-height:40px}
.site-header.is-condensed .topbar__hot{display:none}
.site-header.is-condensed .channel-bar{box-shadow:0 6px 20px -12px rgba(15,46,42,.16)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,46,42,.5);opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:80
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:var(--surface);
  z-index:90;transform:translateX(102%);transition:transform .25s ease;padding:22px 20px;overflow-y:auto;
  box-shadow:var(--shadow-3)
}
.drawer.is-open{transform:translateX(0)}
.drawer h3{font-size:14px;color:var(--muted);font-weight:600;margin:18px 0 10px}
.drawer h3:first-child{margin-top:0}
.drawer__links{display:flex;flex-direction:column;gap:2px}
.drawer__links a{padding:11px 12px;border-radius:10px;color:var(--ink);font-size:15px}
.drawer__links a:hover{background:var(--paper-deep);text-decoration:none}
.drawer__links a.is-active{background:rgba(242,98,46,.1);color:var(--accent-600);font-weight:600}
.drawer__close{position:absolute;top:14px;right:16px;width:36px;height:36px;border-radius:10px;font-size:20px;color:var(--ink-2);line-height:1}
.drawer__close:hover{background:var(--paper-deep)}
.drawer .search-box{max-width:none;min-width:0;margin-bottom:6px}
.drawer__cta{margin-top:22px;display:flex;flex-direction:column;gap:10px}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--paper);border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);padding:14px 0;line-height:1.6}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.crumb span.sep{color:var(--muted)}
.crumb strong{color:var(--brand-700);font-weight:600}

/* ---------- article header ---------- */
.article-hero{padding:44px 0 0;background:var(--paper)}
.article-head{max-width:800px;margin:0 auto}
.article-head__badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;line-height:1.5;
  background:var(--paper);border:1px solid var(--line);color:var(--ink-2);white-space:nowrap
}
.badge--accent{background:rgba(242,98,46,.1);border-color:rgba(242,98,46,.28);color:var(--accent-600);font-weight:600}
.badge--teal{background:rgba(47,184,163,.1);border-color:rgba(47,184,163,.3);color:#1C8B7B;font-weight:600}
.article-head h1{font-size:34px;line-height:1.35;color:var(--brand-900);margin-bottom:18px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--ink-2);line-height:1.6}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.article-meta .num{color:var(--ink);font-weight:600}
.article-divider{max-width:800px;margin:24px auto 0;height:1px;background:var(--line)}

/* ---------- article body ---------- */
.article-wrap{padding:48px 0 0}
.article-body{max-width:800px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink)}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:24px;line-height:1.4;margin:44px 0 16px;padding-left:12px;
  border-left:4px solid var(--accent-500);color:var(--brand-900)
}
.article-body h3{font-size:19px;line-height:1.5;margin:30px 0 10px;color:var(--brand-700)}
.article-body h4{font-size:17px;margin:24px 0 8px;color:var(--ink)}
.article-body p{margin:0 0 1.1em}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-600)}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin-bottom:8px;line-height:1.9}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--paper-deep);
  border-left:4px solid var(--brand-500);border-radius:0 12px 12px 0;color:var(--ink-2)
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:24px 0 10px;border-radius:12px;box-shadow:var(--shadow-1)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;line-height:1.6;margin-top:8px}
.article-body code{
  font-family:var(--font-num);font-size:14px;background:var(--paper-deep);
  padding:2px 6px;border-radius:6px;color:var(--brand-700)
}
.article-body pre{
  background:var(--brand-900);color:#DFF3EE;padding:18px 20px;border-radius:14px;
  overflow-x:auto;font-size:14px;line-height:1.8;margin:24px 0
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;display:block;overflow-x:auto}
.article-body table th,.article-body table td{border:1px solid var(--line);padding:11px 14px;text-align:left;line-height:1.7}
.article-body table th{background:var(--paper-deep);font-weight:600;color:var(--brand-900)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body .num,.article-body strong{font-weight:700}
.article-footnote{
  max-width:800px;margin:40px auto 0;padding:16px 20px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);font-size:13px;color:var(--ink-2);line-height:1.8
}
.empty-state{
  max-width:800px;margin:0 auto;text-align:center;padding:64px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1)
}
.empty-state svg{width:52px;height:52px;margin:0 auto 16px;stroke:var(--muted);fill:none;stroke-width:1.4}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:20px}

/* ---------- related ---------- */
.related-track{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.rel-card{
  background:var(--surface);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;
  display:flex;flex-direction:column
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.rel-card__media{position:relative;aspect-ratio:16/9;overflow:hidden}
.rel-card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.rel-card:hover .rel-card__media img{transform:scale(1.04)}
.rel-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{font-size:16px;line-height:1.55;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card a.cover-link{display:block}
.rel-card a.cover-link:hover{text-decoration:none}
.rel-card .meta{font-size:13px;color:var(--muted);margin-top:auto;display:flex;align-items:center;gap:10px;font-family:var(--font-num)}

/* ---------- section head ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.3;color:var(--brand-900)}
.section-head p{margin:10px 0 0;font-size:15px;color:var(--ink-2);max-width:640px}
.text-link{font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap}
.text-link:hover{color:var(--accent-600);text-decoration:underline;text-underline-offset:3px}

/* ---------- faq ---------- */
.faq-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-500);opacity:0;transition:opacity .2s ease}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:background-color .2s ease,color .2s ease
}
.faq-q:hover{background:var(--paper);color:var(--brand-700)}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:transform .2s ease,background-color .2s ease}
.faq-icon::before{top:10px;left:3px;width:16px;height:2px}
.faq-icon::after{top:3px;left:10px;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{display:none;padding:0 24px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-band{background:var(--brand-900);color:var(--paper);border-radius:var(--radius-lg);padding:48px 44px;box-shadow:var(--shadow-3)}
.cta-band h2{font-size:30px;line-height:1.3;color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(251,250,247,.78);font-size:15px;max-width:560px;margin-bottom:22px}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 26px;margin-bottom:26px;padding:0;list-style:none}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(251,250,247,.9);margin:0}
.cta-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal-400);flex:0 0 auto}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;max-width:560px}
.cta-form input{
  flex:1 1 240px;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(251,250,247,.24);background:rgba(251,250,247,.08);color:#fff;font-size:15px
}
.cta-form input::placeholder{color:rgba(251,250,247,.55)}
.cta-form input:focus{outline:none;border-color:var(--teal-400);box-shadow:0 0 0 3px rgba(47,184,163,.25)}
.cta-note{margin-top:16px;font-size:13px;color:rgba(251,250,247,.6)}
.cta-note a{color:var(--teal-400)}
.cta-note a:hover{color:#7FE0D0;text-decoration:underline;text-underline-offset:3px}

/* ---------- back to category ---------- */
.back-links{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:32px}
.back-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;background:var(--surface);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
}
.back-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,107,94,.35);text-decoration:none}
.back-card strong{display:block;font-size:16px;color:var(--brand-900);margin-bottom:4px}
.back-card span{font-size:13px;color:var(--ink-2)}
.back-card .arrow{font-family:var(--font-num);font-size:18px;color:var(--accent-500)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:var(--paper);margin-top:80px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.site-footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(251,250,247,.7);max-width:340px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(251,250,247,.72);transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(251,250,247,.14);padding-top:20px;padding-bottom:24px;
  font-size:13px;color:rgba(251,250,247,.6)
}
.to-top{
  min-height:36px;padding:0 16px;border-radius:999px;font-size:13px;
  border:1px solid rgba(251,250,247,.28);color:rgba(251,250,247,.85);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease
}
.to-top:hover{border-color:var(--teal-400);color:var(--teal-400);background:rgba(47,184,163,.1)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .related-track{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .topbar__hot{display:none}
  .menu-toggle{display:flex}
  .channel-bar{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-head h1{font-size:30px}
  .section{padding:64px 0}
  .cta-band{padding:40px 32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-head h2{font-size:23px}
  .article-hero{padding:32px 0 0}
  .article-head h1{font-size:26px;line-height:1.4}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:18px}
  .related-track{grid-template-columns:1fr;gap:16px}
  .back-links{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .cta-band h2{font-size:23px}
  .cta-form input{flex:1 1 100%}
  .cta-form .btn{width:100%}
  .faq-q{padding:14px 18px;font-size:15px}
  .faq-a{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
}
@media (max-width:480px){
  body{font-size:15px}
  .brand{font-size:16px}
  .article-head h1{font-size:23px}
  .btn--lg{width:100%}
}

/* roulang page: category2 */
:root{
  --brand-900:#0F2E2A;
  --brand-700:#16463F;
  --brand-500:#1F6B5E;
  --accent-500:#F2622E;
  --accent-600:#D94E1F;
  --teal-400:#2FB8A3;
  --paper:#FBFAF7;
  --paper-deep:#F3F1EA;
  --surface:#FFFFFF;
  --ink:#1B2422;
  --ink-2:#5C6B67;
  --muted:#8A9490;
  --line:#E7E3DA;
  --radius-xs:8px;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,46,42,.06);
  --shadow-2:0 8px 24px -12px rgba(15,46,42,.14);
  --shadow-3:0 18px 40px -18px rgba(15,46,42,.22);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:.005em;
}
img{max-width:100%;display:block;height:auto;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color var(--ease),box-shadow var(--ease),background var(--ease)}
a:hover{text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;line-height:1.35}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid rgba(242,98,46,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent-500);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}
.num{font-family:var(--font-num);font-weight:700;letter-spacing:.01em}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;min-height:44px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  text-decoration:none!important;
}
.btn--accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1)}
.btn--accent:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn--accent:active{transform:none;background:var(--accent-600);box-shadow:var(--shadow-1)}
.btn--ghost{border-color:var(--brand-500);color:var(--brand-700);background:transparent}
.btn--ghost:hover{background:rgba(31,107,94,.08);transform:translateY(-1px)}
.btn--ghost:active{transform:none;background:rgba(31,107,94,.14)}
.btn--light{border-color:rgba(251,250,247,.5);color:var(--paper);background:transparent}
.btn--light:hover{background:rgba(251,250,247,.12);transform:translateY(-1px)}
.btn--xs{padding:8px 16px;min-height:34px;font-size:13px;border-radius:8px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none!important}

/* ============ 标签与徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:var(--radius-pill);
  font-size:12px;line-height:1.6;
  background:var(--paper);border:1px solid var(--line);color:var(--ink-2);
}
.tag--teal{color:#1c7d6f;border-color:rgba(47,184,163,.45);background:rgba(47,184,163,.10)}
.tag--accent{color:var(--accent-600);border-color:rgba(242,98,46,.4);background:rgba(242,98,46,.08)}
.tag--dark{background:rgba(15,46,42,.06);border-color:rgba(15,46,42,.12);color:var(--brand-700)}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--surface)}
.topbar{background:var(--brand-900);color:var(--paper);height:44px;transition:height var(--ease),opacity var(--ease)}
.topbar__inner{display:flex;align-items:center;gap:20px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:28px;height:28px;border-radius:8px;flex-shrink:0;
  display:grid;place-items:center;
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:700;line-height:1;
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:15px;font-weight:700;color:#fff;letter-spacing:.01em}
.brand__text small{font-size:11px;color:rgba(251,250,247,.62);letter-spacing:.02em}
.topbar__tags{display:flex;align-items:center;gap:8px;flex:1;min-width:0;overflow:hidden}
.tag-hot{
  display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--radius-pill);
  font-size:12px;line-height:1.7;color:var(--teal-400);
  border:1px solid rgba(47,184,163,.35);
  background:rgba(47,184,163,.08);
  white-space:nowrap;text-decoration:none!important;
}
.tag-hot:hover{background:rgba(47,184,163,.2);text-decoration:none}
.topbar__actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.link-quiet{font-size:13px;color:rgba(251,250,247,.78)}
.link-quiet:hover{color:#fff}
.nav-toggle{
  display:none;width:38px;height:38px;border-radius:10px;
  border:1px solid rgba(251,250,247,.28);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--paper);border-radius:2px}
.channelbar{background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.channelbar__inner{display:flex;align-items:center;gap:20px;min-height:54px}
.channel-nav{display:flex;align-items:center;gap:26px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  position:relative;padding:16px 2px;font-size:15px;color:var(--ink-2);white-space:nowrap;
  text-decoration:none!important;
}
.channel-nav a:hover{color:var(--brand-700);text-decoration:none}
.channel-nav a.is-active{color:var(--brand-900);font-weight:700}
.channel-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:10px;height:2px;
  background:var(--accent-500);border-radius:2px;
}
.brand--mini{display:none;align-items:center;gap:8px;flex-shrink:0}
.brand--mini .brand__mark{width:24px;height:24px;font-size:13px;border-radius:7px}
.brand--mini strong{font-size:14px;color:var(--brand-900)}
.search{display:flex;align-items:center;gap:8px;flex-shrink:0}
.search__field{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 12px;width:230px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search__field:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(31,107,94,.12)}
.search__field svg{width:15px;height:15px;flex-shrink:0;stroke:var(--muted);fill:none;stroke-width:1.8}
.search__field input{border:0;outline:none;background:transparent;width:100%;font-size:14px}
.search__field input::placeholder{color:var(--muted)}
.site-header.is-stuck .topbar{height:0;opacity:0;overflow:hidden}
.site-header.is-stuck .brand--mini{display:flex}
.site-header.is-stuck .channelbar{box-shadow:0 6px 20px -12px rgba(15,46,42,.16)}
.site-header.is-stuck .channelbar__inner{min-height:58px}

/* ============ 频道头（扁横幅） ============ */
.channel-hero{
  position:relative;color:var(--paper);
  background-color:var(--brand-900);
  background-image:linear-gradient(100deg,rgba(15,46,42,.96) 0%,rgba(15,46,42,.82) 46%,rgba(15,46,42,.55) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center right;
  padding:44px 0 40px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(251,250,247,.68);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:rgba(251,250,247,.68);text-decoration:none}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb span{opacity:.5}
.breadcrumb em{font-style:normal;color:var(--teal-400)}
.channel-hero__grid{display:flex;align-items:flex-end;justify-content:space-between;gap:32px}
.channel-hero h1{
  font-size:38px;line-height:1.28;color:#fff;max-width:720px;
}
.channel-hero .lead{
  margin:14px 0 0;max-width:620px;font-size:15px;line-height:1.85;
  color:rgba(251,250,247,.78);
}
.counter{
  flex-shrink:0;display:flex;flex-direction:column;align-items:flex-end;gap:2px;
  padding:14px 20px;border-radius:var(--radius-md);
  background:rgba(251,250,247,.08);border:1px solid rgba(251,250,247,.18);
}
.counter__num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--accent-500);line-height:1.1}
.counter__label{font-size:12px;color:rgba(251,250,247,.72)}

/* ============ 主体布局 ============ */
.section{padding:72px 0}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:28px;color:var(--brand-900)}
.section-head .section-desc{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.85;max-width:640px}
.section-head .more{font-size:14px;color:var(--brand-500);white-space:nowrap;text-decoration:none}
.section-head .more:hover{text-decoration:underline;text-underline-offset:3px}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}

/* ============ 列表主导区 ============ */
.list-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden}
.list-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;border-bottom:1px solid var(--line);background:var(--paper);
  flex-wrap:wrap;
}
.list-head h2{font-size:18px;color:var(--brand-900)}
.list-head .list-meta{font-size:13px;color:var(--ink-2)}
.list-rows li+li{border-top:1px solid var(--line)}
.list-row{
  display:grid;grid-template-columns:46px minmax(0,1fr) auto;align-items:center;gap:16px;
  padding:12px 22px;min-height:64px;text-decoration:none!important;
  transition:background var(--ease),box-shadow var(--ease);
}
.list-row:hover{background:rgba(242,98,46,.055);box-shadow:inset 3px 0 0 var(--accent-500)}
.list-row:focus-visible{background:rgba(242,98,46,.08)}
.row-index{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--muted);text-align:center}
.list-row:hover .row-index{color:var(--accent-500)}
.row-body{min-width:0;display:block}
.row-title{
  display:block;font-size:16px;font-weight:600;color:var(--ink);line-height:1.45;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.row-summary{
  display:block;margin-top:2px;font-size:13px;line-height:1.6;color:var(--ink-2);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.row-date{font-size:13px;color:var(--muted);font-family:var(--font-num);white-space:nowrap}

/* ============ 侧栏 ============ */
.side-col{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card__title{
  font-size:16px;color:var(--brand-900);padding-left:12px;position:relative;margin-bottom:14px;
}
.side-card__title::before{
  content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;border-radius:2px;background:var(--accent-500);
}
.side-card p{font-size:14px;line-height:1.9;color:var(--ink-2)}
.facts{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.rec-list{display:flex;flex-direction:column;gap:14px}
.rec-item{display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;align-items:center;text-decoration:none!important}
.rec-item img{width:76px;height:52px;object-fit:cover;border-radius:10px;transition:transform var(--ease)}
.rec-item:hover img{transform:scale(1.04)}
.rec-item h3{
  font-size:14px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-item:hover h3{color:var(--brand-700)}
.rec-item .rec-meta{font-size:12px;color:var(--muted);margin-top:4px;display:block}
.mini-cta{
  background:var(--brand-900);color:var(--paper);border-radius:var(--radius-lg);
  padding:24px 22px;box-shadow:var(--shadow-2);
}
.mini-cta h3{font-size:17px;color:#fff;margin-bottom:8px}
.mini-cta p{font-size:13px;line-height:1.85;color:rgba(251,250,247,.76);margin-bottom:16px}
.mini-cta .mini-note{display:block;margin-top:12px;font-size:12px;color:rgba(251,250,247,.6)}
.mini-cta a.text-link{color:var(--teal-400);font-size:12px}
.mini-cta a.text-link:hover{color:#fff}

/* ============ 数据条 ============ */
.rhythm-strip{background:var(--paper-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.rhythm-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.kpi{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease);
}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.kpi__num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand-700);line-height:1.1}
.kpi__num em{font-style:normal;font-size:15px;color:var(--ink-2);margin-left:4px;font-weight:600}
.kpi__label{display:block;margin-top:8px;font-size:14px;font-weight:600;color:var(--ink)}
.kpi p{margin-top:6px;font-size:13px;line-height:1.8;color:var(--ink-2)}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;min-height:56px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:background var(--ease),color var(--ease);
}
.faq-q:hover{background:rgba(31,107,94,.05);color:var(--brand-700)}
.faq-q .faq-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:var(--radius-pill);
  border:1px solid var(--line);display:grid;place-items:center;font-size:14px;color:var(--brand-500);
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.faq-item.is-open .faq-q{color:var(--brand-900);background:rgba(242,98,46,.05);box-shadow:inset 3px 0 0 var(--accent-500)}
.faq-item.is-open .faq-icon{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.faq-item.is-open .faq-a{display:block}

/* ============ 订阅与返回 ============ */
.sub-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 26px;box-shadow:var(--shadow-1);
}
.sub-bar h3{font-size:18px;color:var(--brand-900)}
.sub-bar p{margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.85}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.input{
  height:48px;padding:0 16px;min-width:250px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--surface);font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.input::placeholder{color:var(--muted)}
.input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(31,107,94,.14)}
.back-link{font-size:14px;color:var(--brand-500);text-decoration:none;white-space:nowrap}
.back-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:var(--paper);padding:64px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(251,250,247,.7)}
.site-footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(251,250,247,.72);text-decoration:none}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:48px;padding:20px 24px 26px;border-top:1px solid rgba(251,250,247,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(251,250,247,.6);
}
.to-top{
  font-size:13px;color:var(--paper);border:1px solid rgba(251,250,247,.3);
  padding:8px 14px;border-radius:var(--radius-pill);transition:background var(--ease),border-color var(--ease);
}
.to-top:hover{background:rgba(251,250,247,.14);border-color:rgba(251,250,247,.5)}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,46,42,.5);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:90;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:var(--paper);
  transform:translateX(100%);transition:transform .25s ease;z-index:100;
  padding:22px 20px 32px;overflow-y:auto;
}
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;margin-bottom:22px}
.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-2)}
.drawer__group{margin-bottom:22px}
.drawer__label{font-size:12px;color:var(--muted);letter-spacing:.04em;margin-bottom:10px;display:block}
.drawer nav{display:flex;flex-direction:column;gap:2px}
.drawer nav a{padding:12px 12px;border-radius:var(--radius-sm);font-size:15px;color:var(--ink-2);text-decoration:none!important}
.drawer nav a:hover{background:rgba(31,107,94,.08);color:var(--brand-700)}
.drawer nav a.is-active{background:rgba(242,98,46,.1);color:var(--brand-900);font-weight:700;box-shadow:inset 3px 0 0 var(--accent-500)}
.drawer .drawer-hot{display:flex;flex-wrap:wrap;gap:8px}
.drawer .search__field{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px}
  .channel-hero h1{font-size:34px}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .topbar__tags{display:none}
  .channel-hero__grid{flex-direction:column;align-items:flex-start;gap:20px}
  .counter{align-items:flex-start}
  .rhythm-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .side-col{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .channel-nav{display:none}
  .search{display:none}
  .nav-toggle{display:flex}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .channel-hero{padding:32px 0 30px}
  .channel-hero h1{font-size:28px}
  .section-head h2{font-size:22px}
  .list-row{grid-template-columns:36px minmax(0,1fr);gap:12px;padding:14px 16px}
  .row-date{grid-column:2;justify-self:start}
  .row-title,.row-summary{white-space:normal;overflow:visible;text-overflow:clip}
  .row-summary{-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}
  .input{min-width:100%}
  .sub-form{width:100%}
  .sub-form .btn{width:100%}
}
@media (max-width:520px){
  .topbar__actions .link-quiet{display:none}
  .brand__text small{display:none}
  .channel-hero h1{font-size:25px}
  .section-head h2{font-size:21px}
  .rhythm-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .btn--xs{width:auto}
  .counter__num{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --brand-900:#0F2E2A;
  --brand-700:#16463F;
  --brand-500:#1F6B5E;
  --accent-500:#F2622E;
  --accent-600:#D94E1F;
  --teal-400:#2FB8A3;
  --paper:#FBFAF7;
  --paper-deep:#F2EFE8;
  --surface:#FFFFFF;
  --ink:#1B2422;
  --ink-2:#5C6B67;
  --muted:#8A9490;
  --line:#E7E3DA;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-lg:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,46,42,.06);
  --shadow-2:0 8px 24px -12px rgba(15,46,42,.14);
  --shadow-3:0 18px 40px -18px rgba(15,46,42,.22);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sec-pad:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease,box-shadow .2s ease;}
a:hover{text-decoration:underline;text-underline-offset:3px;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(242,98,46,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-pad) 0;}
.section--tight{padding:56px 0;}
.section--paper{background:var(--paper);}
.section--surface{background:var(--surface);}
.section--dark{background:var(--brand-900);color:var(--paper);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px;line-height:1.8;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--brand-500);font-weight:600;}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-500);border-radius:2px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:all .2s ease;border:1px solid transparent;
}
.btn--accent{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1);}
.btn--accent:hover{background:var(--accent-600);color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn--accent:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn--ghost{border-color:var(--brand-500);color:var(--brand-700);background:transparent;}
.btn--ghost:hover{background:rgba(31,107,94,.08);text-decoration:none;transform:translateY(-2px);}
.btn--light{border-color:rgba(251,250,247,.45);color:var(--paper);background:transparent;}
.btn--light:hover{background:rgba(251,250,247,.12);color:#fff;text-decoration:none;transform:translateY(-2px);}
.btn--sm{height:36px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  transition:box-shadow .2s ease,background-color .2s ease;
}
.topbar{background:var(--brand-900);color:var(--paper);}
.topbar__inner{display:flex;align-items:center;gap:20px;min-height:42px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--paper);font-weight:700;font-size:16px;letter-spacing:.02em;flex:none;}
.brand:hover{text-decoration:none;color:#fff;}
.brand__mark{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:var(--accent-500);color:#fff;font-size:14px;font-weight:700;line-height:1;
}
.hotwords{display:flex;align-items:center;gap:8px;flex:1;overflow:hidden;}
.hot-chip{
  display:inline-block;padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--teal-400);border:1px solid rgba(47,184,163,.35);
  white-space:nowrap;transition:all .2s ease;
}
.hot-chip:hover{background:rgba(47,184,163,.14);color:#7FE3D2;text-decoration:none;}
.topbar__actions{display:flex;align-items:center;gap:14px;flex:none;}
.link-quiet{color:rgba(251,250,247,.75);font-size:14px;}
.link-quiet:hover{color:#fff;}
.menu-toggle{display:none;color:var(--paper);font-size:20px;line-height:1;padding:6px 8px;border-radius:8px;}
.menu-toggle:hover{background:rgba(251,250,247,.12);}

.channelbar{background:var(--paper);border-bottom:1px solid var(--line);}
.channelbar__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:54px;}
.channel-nav{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.channel-nav a{
  position:relative;font-size:15px;color:var(--ink-2);padding:14px 0;font-weight:500;
}
.channel-nav a:hover{color:var(--brand-700);text-decoration:none;}
.channel-nav a.is-active{color:var(--brand-900);font-weight:700;}
.channel-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;
  background:var(--accent-500);border-radius:2px;
}
.search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-pill);padding:0 14px;height:38px;width:240px;transition:border-color .2s ease,box-shadow .2s ease;}
.search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(242,98,46,.18);}
.search__icon{color:var(--muted);font-size:16px;line-height:1;}
.search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.site-header.is-scrolled{box-shadow:0 6px 20px -12px rgba(15,46,42,.16);}
.site-header.is-scrolled .topbar{display:none;}
.site-header.is-scrolled .channelbar{background:rgba(251,250,247,.98);}
.site-header.is-scrolled .channelbar__inner{min-height:58px;}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,46,42,.5);opacity:0;visibility:hidden;transition:.2s ease;z-index:90;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;background:var(--surface);
  z-index:100;transform:translateX(100%);transition:transform .24s ease;padding:24px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer h3{font-size:14px;color:var(--muted);font-weight:600;margin:22px 0 10px;letter-spacing:.04em;}
.drawer h3:first-child{margin-top:0;}
.drawer a{display:block;padding:12px 4px;color:var(--ink);font-size:15px;border-bottom:1px solid var(--line);}
.drawer a:hover{color:var(--brand-700);text-decoration:none;background:var(--paper);}
.drawer .drawer-close{position:absolute;top:16px;right:16px;font-size:20px;color:var(--ink-2);}

/* ---------- 频道头 ---------- */
.channel-hero{
  position:relative;color:var(--paper);
  background-image:linear-gradient(96deg,rgba(15,46,42,.96) 0%,rgba(15,46,42,.82) 52%,rgba(15,46,42,.55) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
}
.channel-hero__inner{padding:64px 0 56px;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(251,250,247,.7);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(251,250,247,.7);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--teal-400);}
.channel-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.25;margin-bottom:14px;}
.channel-hero p{max-width:660px;color:rgba(251,250,247,.82);font-size:16px;line-height:1.9;margin:0;}
.hero-count{
  text-align:right;background:rgba(251,250,247,.08);border:1px solid rgba(251,250,247,.18);
  border-radius:var(--radius-lg);padding:20px 24px;min-width:180px;
}
.hero-count .num{display:block;font-family:var(--font-num);font-size:34px;font-weight:700;color:#fff;line-height:1.1;}
.hero-count .label{font-size:13px;color:rgba(251,250,247,.72);}

/* ---------- 速览 ---------- */
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:36px;}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 20px;box-shadow:var(--shadow-1);transition:all .2s ease;}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.kpi .value{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand-700);line-height:1.15;}
.kpi .unit{font-size:14px;color:var(--ink-2);margin-left:4px;font-family:var(--font-sans);font-weight:500;}
.kpi .name{font-size:14px;color:var(--ink-2);margin-top:6px;}
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-1);}
table.compare{width:100%;border-collapse:collapse;min-width:660px;font-size:15px;}
table.compare th,table.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);}
table.compare thead th{background:var(--paper-deep);font-size:14px;color:var(--ink-2);font-weight:600;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{font-weight:600;}
table.compare tbody tr:hover{background:var(--paper);}
.col-feature{background:rgba(242,98,46,.06);}
.num-strong{font-family:var(--font-num);font-weight:700;font-size:17px;color:var(--brand-700);}

/* ---------- 工具条 ---------- */
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px;}
.chips{display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);font-size:14px;color:var(--ink-2);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700);text-decoration:none;}
.chip.is-on{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}
.view-switch{display:flex;gap:6px;border:1px solid var(--line);border-radius:var(--radius-btn);padding:4px;background:var(--surface);}
.view-switch button{padding:6px 14px;border-radius:8px;font-size:14px;color:var(--ink-2);transition:all .2s ease;}
.view-switch button.is-on{background:var(--brand-700);color:#fff;}
.view-switch button:hover{color:var(--brand-700);}
.view-switch button.is-on:hover{color:#fff;}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:all .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card__media{position:relative;overflow:hidden;}
.card__media img{width:100%;height:206px;object-fit:cover;border-radius:0;transition:transform .2s ease;}
.card:hover .card__media img{transform:scale(1.04);}
.card__badge{
  position:absolute;left:12px;top:12px;padding:4px 12px;border-radius:var(--radius-pill);
  background:rgba(251,250,247,.94);border:1px solid var(--line);font-size:12px;color:var(--brand-700);font-weight:600;
}
.card__badge--accent{background:var(--accent-500);border-color:var(--accent-500);color:#fff;}
.card__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;gap:10px;}
.card__title{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__desc{font-size:15px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.tagline{display:flex;gap:8px;flex-wrap:wrap;}
.tag{display:inline-block;padding:3px 10px;border-radius:var(--radius-pill);background:var(--paper);border:1px solid var(--line);font-size:12px;color:var(--ink-2);}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap;}
.pager a,.pager span{
  min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);font-size:14px;color:var(--ink-2);
  transition:all .2s ease;
}
.pager a:hover{border-color:var(--brand-500);color:var(--brand-700);text-decoration:none;}
.pager .is-current{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}
.pager .is-disabled{color:var(--muted);background:var(--paper-deep);cursor:not-allowed;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-1);transition:all .2s ease;}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step .idx{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--accent-500);letter-spacing:.1em;}
.step h3{font-size:19px;margin:10px 0 8px;}
.step p{margin:0;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden;}
.faq details{border-bottom:1px solid var(--line);}
.faq details:last-child{border-bottom:0;}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;font-size:16px;font-weight:600;line-height:1.6;transition:background .2s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:var(--paper);}
.faq summary .sign{flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:14px;color:var(--brand-700);background:var(--paper);}
.faq details[open] summary{background:var(--paper);border-left:3px solid var(--accent-500);}
.faq details[open] summary .sign{background:var(--accent-500);border-color:var(--accent-500);color:#fff;}
.faq .answer{padding:0 24px 20px;font-size:15px;color:var(--ink-2);line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-900);color:var(--paper);border-radius:var(--radius-lg);padding:48px;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-bottom:14px;}
.cta-band .points{display:flex;flex-direction:column;gap:10px;margin:0 0 4px;}
.cta-band .points li{display:flex;gap:10px;font-size:15px;color:rgba(251,250,247,.84);line-height:1.8;}
.cta-band .points li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent-500);margin-top:11px;}
.cta-form{background:rgba(251,250,247,.06);border:1px solid rgba(251,250,247,.16);border-radius:var(--radius-card);padding:24px;}
.cta-form label{display:block;font-size:14px;color:rgba(251,250,247,.78);margin-bottom:8px;}
.cta-form input{
  width:100%;height:48px;border-radius:var(--radius-btn);border:1px solid rgba(251,250,247,.28);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:15px;outline:none;transition:all .2s ease;
}
.cta-form input::placeholder{color:rgba(251,250,247,.5);}
.cta-form input:focus{border-color:var(--teal-400);box-shadow:0 0 0 3px rgba(47,184,163,.22);}
.cta-form .btn{margin-top:14px;}
.cta-form .hint{margin:12px 0 0;font-size:13px;color:rgba(251,250,247,.6);line-height:1.8;}
.cta-form .hint a{color:var(--teal-400);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:var(--paper);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;margin-bottom:14px;}
.site-footer p{font-size:14px;color:rgba(251,250,247,.72);line-height:1.85;margin:0;}
.site-footer h4{font-size:14px;margin:0 0 16px;color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(251,250,247,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  border-top:1px solid rgba(251,250,247,.14);padding:20px 24px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(251,250,247,.62);
}
.to-top{border:1px solid rgba(251,250,247,.3);color:rgba(251,250,247,.82);border-radius:var(--radius-pill);padding:6px 16px;font-size:13px;transition:all .2s ease;}
.to-top:hover{background:rgba(251,250,247,.12);color:#fff;}

/* ---------- 空态 / 加载 ---------- */
.empty-state{text-align:center;padding:56px 20px;color:var(--ink-2);}
.empty-state .icon{width:44px;height:44px;margin:0 auto 14px;border:2px solid var(--line);border-radius:12px;}
.empty-state p{font-size:15px;margin:0 0 14px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .kpi-row{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  :root{--sec-pad:64px;}
  .hotwords{display:none;}
  .channel-nav{gap:20px;}
  .channel-hero__inner{grid-template-columns:1fr;gap:26px;align-items:start;}
  .hero-count{text-align:left;}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .steps{grid-template-columns:1fr;}
}
@media (max-width:768px){
  :root{--sec-pad:48px;}
  .container{padding:0 16px;}
  .channelbar__inner{min-height:56px;gap:12px;}
  .channel-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .search{width:100%;max-width:220px;}
  .grid-3{grid-template-columns:1fr;gap:16px;}
  .kpi-row{grid-template-columns:repeat(2,1fr);gap:16px;}
  .card__media img{height:190px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .channel-hero__inner{padding:44px 0 40px;}
  .kpi-row{grid-template-columns:1fr;}
  .btn{width:100%;}
  .btn--sm,.to-top{width:auto;}
  .cta-band{padding:28px 18px;}
  .toolbar{flex-direction:column;align-items:stretch;}
  .view-switch{justify-content:center;}
  .section-head h2{font-size:22px;}
}