/* roulang page: index */
:root{
  --primary:#F2622E;
  --primary-dark:#D94F1D;
  --primary-soft:rgba(242,98,46,.10);
  --accent:#12B39A;
  --accent-soft:rgba(18,179,154,.12);
  --ink:#14161C;
  --ink-2:#1E2129;
  --ink-3:#0E1015;
  --paper:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1D23;
  --muted:#5C616C;
  --border:#E5E1DB;
  --dtext:#EDEBE7;
  --dmuted:#9AA0AB;
  --warn:#D9822B;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:999px;
  --r-input:10px;
  --shadow:0 1px 2px rgba(20,22,28,.06),0 8px 24px rgba(20,22,28,.08);
  --shadow-h:0 12px 32px rgba(20,22,28,.12);
  --mono:ui-monospace,"DIN Alternate","Roboto Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --radius:10px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:var(--primary);text-decoration:none;transition:color .16s ease-out}
a:hover,a:focus-visible{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:80px 0}
.section--tight{padding:56px 0}
.section--paper{background:var(--paper)}
.section--white{background:#fff}
.section-head{margin-bottom:36px;max-width:720px}
.section-head .eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--primary);text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-size:28px;line-height:1.35;font-weight:800;letter-spacing:-.01em;color:var(--text)}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .16s ease-out,background-color .16s ease-out,border-color .16s ease-out,color .16s ease-out,box-shadow .16s ease-out;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff;text-decoration:none}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,98,46,.28)}
.btn-outline{background:transparent;color:var(--text);border-color:var(--border)}
.btn-outline:hover,.btn-outline:focus{color:var(--primary);border-color:var(--primary);text-decoration:none;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.36)}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;border-color:#fff;background:rgba(255,255,255,.08);text-decoration:none;transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* tags */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-badge);font-size:12px;font-weight:600;line-height:1.6;background:var(--paper);color:var(--muted);border:1px solid var(--border)}
.tag-accent{background:var(--accent-soft);color:#0B7E6C;border-color:transparent}
.tag-primary{background:var(--primary-soft);color:var(--primary-dark);border-color:transparent}
.chip{display:inline-flex;align-items:center;padding:7px 16px;border-radius:var(--r-badge);font-size:13px;font-weight:600;color:var(--muted);background:#fff;border:1px solid var(--border);cursor:pointer;transition:all .16s ease-out}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ---------- topbar + header ---------- */
.site-header{position:sticky;top:0;z-index:120;background:#fff;border-bottom:1px solid var(--border)}
.topbar{background:var(--ink);color:var(--dmuted);font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-status{display:flex;align-items:center;gap:8px;color:var(--dtext)}
.topbar-status .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.topbar-date{color:var(--dmuted)}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:66px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#FF8A5B);color:#fff;font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.site-nav{display:flex;align-items:center;gap:8px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item a{display:inline-block;position:relative;padding:10px 14px;font-size:15px;font-weight:600;color:var(--text);text-decoration:none;border-radius:8px}
.nav-item a:hover{color:var(--primary);background:var(--primary-soft);text-decoration:none}
.nav-item.is-active a{color:var(--primary)}
.nav-item.is-active a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:2px;background:var(--primary)}
.nav-cta{margin-left:12px}

/* mega */
.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:7px;background:none;border:0;padding:10px 12px;font-size:15px;font-weight:600;color:var(--text);cursor:pointer;border-radius:8px;transition:color .16s ease-out,background-color .16s ease-out}
.mega-trigger:hover{color:var(--primary);background:var(--primary-soft)}
.mega-trigger::after{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .16s ease-out}
.mega-trigger[aria-expanded="true"]::after{transform:rotate(-135deg) translateY(-1px)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:840px;
  background:#fff;border:1px solid var(--border);border-radius:18px;
  box-shadow:0 20px 52px rgba(20,22,28,.15);padding:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.05fr 1.25fr .95fr;gap:28px}
.mega-col h4{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}
.mega-links li a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 0;font-size:14px;color:var(--text);text-decoration:none;border-bottom:1px dashed rgba(229,225,219,.9)}
.mega-links li:last-child a{border-bottom:0}
.mega-links li a::after{content:"→";color:var(--border);font-size:13px;transition:color .16s ease-out,transform .16s ease-out}
.mega-links li a:hover{color:var(--primary);text-decoration:none}
.mega-links li a:hover::after{color:var(--primary);transform:translateX(2px)}
.mega-posts li{margin-bottom:14px}
.mega-posts a{display:flex;gap:12px;align-items:flex-start;text-decoration:none;color:var(--text)}
.mega-posts a:hover{color:var(--primary);text-decoration:none}
.mega-posts .thumb{width:72px;height:48px;flex:0 0 auto;border-radius:8px;overflow:hidden;background:var(--paper)}
.mega-posts .thumb img{width:100%;height:100%;object-fit:cover}
.mega-posts .txt{font-size:13px;line-height:1.6;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mega-posts .sub{font-size:12px;color:var(--muted);font-weight:400;margin-top:2px}
.mega-card{background:var(--ink);border-radius:14px;padding:20px;color:var(--dtext);border:1px solid rgba(255,255,255,.06)}
.mega-card h5{font-size:16px;font-weight:800;color:#fff;margin-bottom:8px}
.mega-card p{font-size:13px;color:var(--dmuted);line-height:1.7;margin-bottom:14px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:#fff;border:1px solid var(--border);border-radius:10px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);margin:0 auto;border-radius:2px}

/* ---------- hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,#14161C 0%,#20242E 100%);color:var(--dtext);overflow:hidden;padding:72px 0 80px}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.16}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:52px 52px;pointer-events:none}
.hero-glow{position:absolute;top:-220px;right:-160px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(242,98,46,.30),rgba(242,98,46,0) 66%);pointer-events:none}
.hero-inner{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-badge);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);font-size:13px;font-weight:600;color:var(--dtext);margin-bottom:22px}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);display:inline-block;animation:breathe 1.8s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(242,98,46,.5)}50%{opacity:.5;box-shadow:0 0 0 6px rgba(242,98,46,0)}}
.hero h1{font-size:42px;line-height:1.28;font-weight:800;color:#fff;letter-spacing:-.02em;margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--dmuted);max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-mini{display:flex;flex-wrap:wrap;gap:28px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1)}
.hero-mini li{display:flex;flex-direction:column;gap:2px}
.hero-mini span{font-size:12px;color:var(--dmuted);letter-spacing:.06em}
.hero-mini strong{font-size:16px;font-weight:700;color:#fff}
.hero-media{position:relative}
.cover-card{position:relative;border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.1);background:var(--ink-2);box-shadow:0 18px 44px rgba(0,0,0,.35)}
.cover-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.status-badge{position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:var(--r-badge);background:rgba(20,22,28,.78);color:#fff;font-size:12px;font-weight:700}
.cover-count{position:absolute;right:12px;bottom:12px;font-family:var(--mono);font-size:12px;font-weight:700;color:#fff;background:rgba(20,22,28,.78);padding:5px 10px;border-radius:var(--r-badge);letter-spacing:.04em}
.cover-meta{margin-top:14px;font-size:13px;color:var(--dmuted)}

/* ---------- countdown ---------- */
.countdown-band{background:var(--ink-2);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);padding:34px 0 30px;color:var(--dtext)}
.cd-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:16px;margin-bottom:20px}
.cd-head span{font-size:14px;font-weight:800;color:#fff;letter-spacing:.06em}
.cd-head p{font-size:13px;color:var(--dmuted)}
.cd-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;max-width:620px}
.cd-cell{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:14px 8px;text-align:center}
.cd-num{display:block;font-family:var(--mono);font-size:34px;font-weight:800;line-height:1.1;color:#fff;letter-spacing:.04em}
.cd-label{display:block;margin-top:6px;font-size:12px;color:var(--dmuted)}
.cd-progress{margin-top:22px;height:2px;background:rgba(255,255,255,.1);border-radius:2px;overflow:hidden}
.cd-progress span{display:block;height:100%;width:38%;background:linear-gradient(90deg,var(--primary),#FF8A5B);border-radius:2px}

/* ---------- highlights ---------- */
.hl-list{border-top:1px solid var(--border)}
.hl-item{position:relative;display:flex;align-items:center;gap:20px;padding:20px 16px 20px 0;border-bottom:1px solid var(--border);transition:padding-left .18s ease-out,background-color .18s ease-out}
.hl-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--primary);opacity:0;transition:opacity .18s ease-out}
.hl-item:hover{padding-left:16px;background:#fff}
.hl-item:hover::before{opacity:1}
.hl-index{font-family:var(--mono);font-size:15px;font-weight:800;color:var(--primary);flex:0 0 34px}
.hl-thumb{width:96px;height:64px;flex:0 0 auto;border-radius:10px;overflow:hidden;background:var(--paper)}
.hl-thumb img{width:100%;height:100%;object-fit:cover}
.hl-body{flex:1 1 auto;min-width:0}
.hl-body h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:4px}
.hl-body p{font-size:14px;color:var(--muted);line-height:1.7}
.hl-item .tag{flex:0 0 auto}

/* ---------- subscribe ---------- */
.sub-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:32px;box-shadow:var(--shadow)}
.sub-card h2{font-size:24px;font-weight:800;margin-bottom:8px}
.sub-card .lead{font-size:14px;color:var(--muted);margin-bottom:20px}
.sub-form{display:flex;flex-wrap:wrap;gap:12px}
.sub-form input[type="text"],.sub-form select{height:48px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r-input);background:#fff;font-size:15px;min-width:0;transition:border-color .16s ease-out,box-shadow .16s ease-out}
.sub-form input[type="text"]{flex:1 1 220px}
.sub-form select{flex:0 0 150px;cursor:pointer}
.sub-form input[type="text"]:focus,.sub-form select:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(242,98,46,.16);outline:none}
.sub-note{margin-top:14px;font-size:13px;color:var(--muted)}
.sub-note a{font-weight:600}
.sub-side{display:flex;flex-direction:column;gap:14px}
.sub-side .mini-card{background:var(--paper);border:1px solid var(--border);border-radius:14px;padding:18px}
.sub-side .mini-card strong{display:block;font-size:15px;font-weight:800;color:var(--text);margin-bottom:6px}
.sub-side .mini-card p{font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- rail ---------- */
.rail{display:flex;gap:20px;overflow-x:auto;padding:4px 4px 16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--border);border-radius:6px}
.rail-card{flex:0 0 calc((100% - 60px) / 4);scroll-snap-align:start;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:rgba(242,98,46,.4)}
.rail-thumb{position:relative;background:var(--paper)}
.rail-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rail-dur{position:absolute;right:10px;bottom:10px;font-family:var(--mono);font-size:12px;font-weight:700;color:#fff;background:rgba(20,22,28,.8);padding:3px 8px;border-radius:var(--r-badge)}
.rail-body{padding:16px}
.rail-body h3{font-size:15px;font-weight:700;line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-body h3 a{color:var(--text)}
.rail-body h3 a:hover{color:var(--primary);text-decoration:none}
.rail-meta{font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:10px}
.rail-more{flex:0 0 calc((100% - 60px) / 4);scroll-snap-align:start;border:1px dashed var(--border);border-radius:var(--r-card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:220px;color:var(--muted);font-size:14px;font-weight:600;background:transparent;transition:border-color .18s ease-out,color .18s ease-out}
.rail-more:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}

/* ---------- posts (cms) ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.posts{row-gap:0}
.post-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;margin-bottom:30px}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:rgba(242,98,46,.4)}
.post-thumb{display:block;background:var(--paper)}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.post-body h3{font-size:17px;font-weight:700;line-height:1.6;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:var(--text)}
.post-body h3 a:hover{color:var(--primary);text-decoration:none}
.post-body .excerpt{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.post-meta{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--border)}
.post-meta a{font-weight:600}
.empty-state{background:#fff;border:1px dashed var(--border);border-radius:var(--r-card);padding:56px 24px;text-align:center;margin-bottom:30px}
.empty-state .empty-art{width:76px;height:76px;border-radius:50%;background:var(--primary-soft);margin:0 auto 18px;display:flex;align-items:center;justify-content:center;font-size:26px;color:var(--primary);font-weight:800}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:20px}

/* ---------- why / asymmetric ---------- */
.why-main{background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden;height:100%;display:flex;flex-direction:column}
.why-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.why-main-body{padding:28px}
.why-main-body h2{font-size:24px;font-weight:800;line-height:1.4;margin-bottom:12px}
.why-main-body>p{font-size:15px;color:var(--muted);margin-bottom:22px}
.why-steps li{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--border)}
.why-steps .num{font-family:var(--mono);font-size:14px;font-weight:800;color:var(--primary);flex:0 0 auto}
.why-steps strong{display:block;font-size:15px;font-weight:700;margin-bottom:4px}
.why-steps p{font-size:14px;color:var(--muted);line-height:1.7}
.why-side{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
.why-side h3{font-size:17px;font-weight:800;margin-bottom:10px}
.why-side p{font-size:14px;color:var(--muted);line-height:1.75}
.why-side-a{margin-bottom:24px}
.why-side-b{margin-left:24px}
.why-stat{margin-top:16px;display:flex;align-items:baseline;gap:8px}
.why-stat .big{font-family:var(--mono);font-size:30px;font-weight:800;color:var(--primary)}
.why-stat .unit{font-size:13px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 0;font-size:17px;font-weight:600;color:var(--text);transition:color .16s ease-out}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);flex:0 0 auto;transition:transform .18s ease-out,border-color .18s ease-out;margin-top:-4px}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary:hover::after{border-color:var(--primary)}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--primary);margin-top:2px}
.faq-answer{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--muted);max-width:860px}

/* ---------- cta ---------- */
.cta-band{position:relative;background:linear-gradient(135deg,#14161C 0%,#20242E 100%);color:var(--dtext);padding:60px 0;overflow:hidden}
.cta-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:46px 46px;pointer-events:none}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-inner h2{font-size:26px;font-weight:800;color:#fff;line-height:1.4;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-3);color:var(--dmuted);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.15fr;gap:36px;padding-bottom:44px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--dmuted);max-width:320px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--dmuted);text-decoration:none}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px}
.footer-bottom a{color:var(--dmuted)}
.footer-bottom a:hover{color:#fff;text-decoration:none}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .nav-toggle{display:flex}
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;gap:0;padding:8px 0 18px;box-shadow:0 20px 40px rgba(20,22,28,.1);max-height:calc(100vh - 110px);overflow-y:auto}
  .site-nav.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item a{padding:14px 24px;border-radius:0}
  .nav-item.is-active a::after{left:24px;right:auto;width:22px;bottom:8px;height:3px}
  .nav-cta{margin:14px 24px 0}
  .mega-wrap{position:static}
  .mega-trigger{width:100%;justify-content:space-between;padding:14px 24px;border-radius:0}
  .mega-panel{position:static;width:auto;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;padding:0 24px 16px;display:none;top:auto}
  .mega-wrap.is-open .mega-panel{display:block}
  .mega-grid{grid-template-columns:1fr;gap:22px}
  .hero{padding:52px 0 60px}
  .hero h1{font-size:32px}
  .section{padding:60px 0}
  .rail-card{flex:0 0 calc((100% - 20px) / 2)}
  .rail-more{flex:0 0 calc((100% - 20px) / 2)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .why-side-b{margin-left:0;margin-top:24px}
}
@media screen and (max-width:768px){
  .container{padding:0 16px}
  .topbar{font-size:12px}
  .topbar-date{display:none}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-mini{gap:20px}
  .cd-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;max-width:none}
  .cd-num{font-size:24px}
  .cd-cell{padding:12px 4px}
  .section-head h2{font-size:22px}
  .sub-card{padding:24px}
  .sub-form input[type="text"],.sub-form select{flex:1 1 100%}
  .hl-item{flex-wrap:wrap;gap:14px}
  .hl-thumb{width:80px;height:54px}
  .hl-body{flex:1 1 100%}
  .cta-inner h2{font-size:22px}
}
@media screen and (max-width:520px){
  .brand-text{font-size:14px}
  .hero h1{font-size:25px}
  .hero-cta .btn{flex:1 1 100%}
  .cd-num{font-size:20px}
  .rail-card{flex:0 0 82%}
  .rail-more{flex:0 0 82%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .post-body{padding:16px}
}

/* roulang page: article */
:root{
  --c-primary:#F2622E;
  --c-primary-dark:#D9501F;
  --c-secondary:#12B39A;
  --c-secondary-deep:#0E8E7B;
  --c-ink:#14161C;
  --c-ink-2:#1E2129;
  --c-warm:#F6F4F1;
  --c-card:#FFFFFF;
  --c-text:#1B1D23;
  --c-muted:#5C616C;
  --c-border:#E5E1DB;
  --c-dark-text:#EDEBE7;
  --c-dark-muted:#9AA0AB;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:999px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(20,22,28,.06),0 8px 24px rgba(20,22,28,.08);
  --sh-2:0 12px 32px rgba(20,22,28,.12);
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"DIN Alternate","Roboto Mono","SFMono-Regular",Menlo,monospace;
  --container:1200px;
}
*,*::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:1.8;color:var(--c-text);background:var(--c-warm);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out}
a:hover{color:var(--c-primary-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.35;color:inherit}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
input,select,textarea{border-radius:var(--r-input)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-sm{padding:48px 0}
.section-head{margin-bottom:32px}
.section-head h2{font-size:28px;line-height:1.3}
.section-head p{color:var(--c-muted);font-size:15px;margin-top:10px;max-width:70ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-secondary-deep);letter-spacing:.06em;margin-bottom:10px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-secondary);border-radius:2px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--c-border);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.3);color:#fff}
.btn-ghost-light:hover{border-color:#fff;color:#fff}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--c-ink);color:var(--c-dark-muted);font-size:13px;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px}
.topbar-status{display:flex;align-items:center;gap:8px;color:var(--c-dark-text);margin:0}
.topbar-status .dot{width:8px;height:8px;border-radius:50%;background:var(--c-secondary);box-shadow:0 0 0 3px rgba(18,179,154,.18)}
.topbar-date{margin:0;font-family:var(--font-mono);font-size:12px;color:var(--c-dark-muted)}

/* ===== 导航 ===== */
.site-header{position:relative;z-index:80}
.navbar{background:#fff;border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:80}
.navbar-inner{display:flex;align-items:center;gap:28px;min-height:68px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;flex:0 0 auto}
.brand:hover{color:var(--c-text)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700}
.brand-text{font-size:16px;letter-spacing:.2px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item a{display:block;padding:10px 14px;color:var(--c-text);font-size:15px;border-radius:8px;position:relative;transition:color .18s ease-out,background .18s ease-out}
.nav-item a:hover{color:var(--c-primary);background:rgba(242,98,46,.07)}
.nav-item.is-active a{color:var(--c-primary);font-weight:600}
.nav-item.is-active a::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:2px;background:var(--c-primary)}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;background:none;border:1px solid var(--c-border);border-radius:8px;padding:9px 10px;cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text)}

/* ===== Mega 面板 ===== */
.mega-wrap{position:relative;margin-left:8px}
.mega-trigger{background:transparent;border:1px solid var(--c-border);border-radius:var(--r-btn);padding:9px 16px;font-size:14px;color:var(--c-text);cursor:pointer;transition:border-color .18s ease-out,color .18s ease-out}
.mega-trigger:hover{border-color:var(--c-primary);color:var(--c-primary)}
.mega-panel{position:absolute;top:calc(100% + 14px);right:0;width:820px;background:#fff;border:1px solid var(--c-border);border-radius:18px;box-shadow:var(--sh-1);padding:24px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s ease-out;z-index:90}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.05fr 1.25fr 1fr;gap:24px}
.mega-col h4{font-size:12px;letter-spacing:.1em;color:var(--c-muted);margin-bottom:12px;font-weight:600}
.mega-links li a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 0;font-size:14px;color:var(--c-text);border-bottom:1px dashed var(--c-border)}
.mega-links li:last-child a{border-bottom:0}
.mega-links li a:hover{color:var(--c-primary)}
.mega-links li a::after{content:"›";color:var(--c-muted);font-size:15px}
.mega-posts li + li{margin-top:6px}
.mega-posts li a{display:flex;gap:12px;padding:8px 6px;border-radius:10px;color:var(--c-text)}
.mega-posts li a:hover{background:var(--c-warm)}
.mega-posts .thumb{width:72px;height:48px;flex:0 0 72px;border-radius:8px;overflow:hidden;background:var(--c-warm)}
.mega-posts .thumb img{width:100%;height:100%;object-fit:cover}
.mega-post-title{font-size:14px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mega-post-meta{display:block;font-size:12px;color:var(--c-muted);font-family:var(--font-mono);margin-top:4px}
.mega-card{background:var(--c-ink);color:var(--c-dark-text);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:10px}
.mega-card h5{font-size:16px;color:#fff}
.mega-card p{font-size:13px;line-height:1.7;color:var(--c-dark-muted);margin:0}
.mega-card .btn{margin-top:6px}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);padding:22px 0 24px}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C9C4BC}
.breadcrumb .current{color:var(--c-muted);max-width:58ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 文章主体 ===== */
.article-section{padding:0 0 72px}
.article-main{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:38px 40px 44px}
.cat-pill{display:inline-block;background:rgba(18,179,154,.13);color:var(--c-secondary-deep);border-radius:var(--r-badge);padding:5px 14px;font-size:13px;font-weight:600}
.article-title{font-size:34px;line-height:1.35;margin-top:16px;letter-spacing:-.2px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--c-muted);margin-top:20px;padding:14px 0;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:#B7B2A9}
.article-meta .mono{font-family:var(--font-mono)}

.content-body{font-size:17px;line-height:1.9;max-width:820px;margin-top:28px;color:var(--c-text)}
.content-body > *:first-child{margin-top:0}
.content-body p{margin:0 0 1.35em}
.content-body h2{font-size:22px;margin:40px 0 16px;padding-left:14px;position:relative;line-height:1.45}
.content-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--c-primary)}
.content-body h3{font-size:18px;margin:28px 0 12px}
.content-body h4{font-size:16px;margin:22px 0 10px}
.content-body ul,.content-body ol{margin:0 0 1.35em;padding-left:24px}
.content-body ul{list-style:disc}
.content-body ol{list-style:decimal}
.content-body li{margin-bottom:.5em;line-height:1.8}
.content-body blockquote{margin:24px 0;padding:16px 20px;background:var(--c-warm);border-left:3px solid var(--c-secondary);border-radius:0 10px 10px 0;color:var(--c-muted);font-size:16px}
.content-body img{border-radius:12px;margin:22px 0;height:auto}
.content-body figure{margin:24px 0}
.content-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px}
.content-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--c-border);border-radius:12px;overflow:hidden}
.content-body th{background:var(--c-warm);text-align:left;font-weight:600}
.content-body th,.content-body td{padding:11px 14px;border-bottom:1px solid var(--c-border)}
.content-body tr:last-child td{border-bottom:0}
.content-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.content-body a:hover{color:var(--c-primary-dark)}
.content-body strong{font-weight:700}

/* ===== 文章标签 ===== */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-border)}
.article-tags .tag{font-size:13px;color:var(--c-muted);background:var(--c-warm);border:1px solid var(--c-border);border-radius:var(--r-badge);padding:5px 14px;transition:.18s ease-out}
.article-tags .tag:hover{color:var(--c-primary);border-color:var(--c-primary);background:#fff}

/* ===== 上下篇 ===== */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.pn-card{display:block;background:var(--c-warm);border:1px solid var(--c-border);border-radius:var(--r-card);padding:18px 20px;color:var(--c-text);transition:.18s ease-out}
.pn-card:hover{border-color:var(--c-primary);background:#fff;box-shadow:var(--sh-2);transform:translateY(-2px);color:var(--c-text)}
.pn-label{display:block;font-size:12px;color:var(--c-muted);margin-bottom:6px;font-family:var(--font-mono)}
.pn-title{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pn-card.next{text-align:right}

/* ===== 侧栏 ===== */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px}
.side-card h3{font-size:16px;margin-bottom:14px}
.side-nav li a{display:flex;align-items:center;gap:10px;padding:9px 0;font-size:14px;color:var(--c-text);border-bottom:1px dashed var(--c-border)}
.side-nav li:last-child a{border-bottom:0}
.side-nav li a:hover{color:var(--c-primary)}
.side-nav .num{font-family:var(--font-mono);font-size:12px;color:var(--c-muted)}
.side-note{font-size:13px;color:var(--c-muted);line-height:1.75;margin-top:12px}
.entry-card{background:linear-gradient(135deg,var(--c-ink) 0%,#20242E 100%);border:1px solid rgba(255,255,255,.06);color:var(--c-dark-text)}
.entry-card h3{color:#fff}
.entry-card p{font-size:14px;line-height:1.75;color:var(--c-dark-muted);margin:10px 0 16px}
.side-list li + li{margin-top:12px}
.side-list a{display:flex;gap:12px;align-items:flex-start;color:var(--c-text)}
.side-list a:hover .side-list-title{color:var(--c-primary)}
.side-list .thumb{width:64px;height:48px;flex:0 0 64px;border-radius:8px;overflow:hidden;background:var(--c-warm)}
.side-list .thumb img{width:100%;height:100%;object-fit:cover}
.side-list-title{font-size:14px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 空态 ===== */
.empty-state{text-align:center;padding:56px 24px;background:var(--c-warm);border:1px dashed var(--c-border);border-radius:var(--r-card);margin-top:28px}
.empty-illus{width:120px;height:88px;margin:0 auto 20px;border-radius:14px;background:linear-gradient(135deg,rgba(242,98,46,.14),rgba(18,179,154,.14));display:grid;place-items:center;color:var(--c-muted);font-size:30px}
.empty-state h3{font-size:19px;margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--c-muted);margin-bottom:20px}

/* ===== 相关推荐卡片 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;height:100%;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(242,98,46,.5)}
.post-thumb{aspect-ratio:16/9;background:var(--c-warm);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{display:inline-block;font-size:12px;font-weight:600;border-radius:var(--r-badge);padding:4px 11px;background:rgba(18,179,154,.13);color:var(--c-secondary-deep)}
.badge-warm{background:rgba(242,98,46,.12);color:var(--c-primary-dark)}
.post-title{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--c-text)}
.post-card:hover .post-title{color:var(--c-primary)}
.post-excerpt{font-size:14px;line-height:1.75;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-muted);font-family:var(--font-mono);padding-top:6px}

/* ===== FAQ ===== */
.faq-list{max-width:920px}
.faq-list details{background:#fff;border:1px solid var(--c-border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.faq-list details[open]{border-color:rgba(242,98,46,.45);box-shadow:var(--sh-1)}
.faq-list summary{list-style:none;cursor:pointer;padding:17px 20px;font-size:17px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-size:20px;line-height:1;color:var(--c-muted);transition:transform .18s ease-out,color .18s ease-out}
.faq-list details[open] summary::after{transform:rotate(45deg);color:var(--c-primary)}
.faq-answer{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--c-muted)}

/* ===== CTA 条 ===== */
.cta-bar{position:relative;background:linear-gradient(135deg,#14161C 0%,#20242E 100%);overflow:hidden}
.cta-bar::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);background-size:44px 44px;opacity:.06;pointer-events:none}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-inner h2{color:#fff;font-size:26px;line-height:1.4}
.cta-inner p{color:var(--c-dark-muted);font-size:15px;margin-top:10px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ===== 页脚 ===== */
.site-footer{background:#101218;color:var(--c-dark-muted);padding-top:64px;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand .brand{color:#fff}
.footer-brand .brand:hover{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:38ch}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col li a{display:block;padding:6px 0;font-size:14px;color:var(--c-dark-muted)}
.footer-col li a:hover{color:var(--c-primary)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13px}
.footer-bottom a{color:var(--c-dark-muted)}
.footer-bottom a:hover{color:var(--c-primary)}

@media (max-width:1024px){
  .navbar-inner{gap:16px}
  .nav-toggle{display:flex}
  .site-nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:6px;background:#fff;border-bottom:1px solid var(--c-border);box-shadow:var(--sh-1);padding:14px 24px 22px}
  .site-nav.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item a{padding:12px 4px;border-bottom:1px solid var(--c-border)}
  .nav-item.is-active a::after{left:4px;right:auto;width:22px;bottom:8px}
  .mega-wrap{margin:0;width:100%}
  .mega-trigger{width:100%;margin-top:12px}
  .mega-panel{position:static;width:auto;display:none;opacity:1;visibility:visible;transform:none;box-shadow:none;border-radius:14px;padding:18px;margin-top:12px}
  .mega-wrap:hover .mega-panel{display:none}
  .mega-wrap.is-open .mega-panel{display:block}
  .mega-grid{grid-template-columns:1fr;gap:20px}
  .mega-links{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
  .article-main{padding:26px 22px 32px}
  .article-title{font-size:28px}
  .sidebar{position:static;margin-top:24px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .topbar-inner{flex-direction:column;align-items:flex-start;gap:2px;padding:7px 0}
  .topbar-date{font-size:11px}
  .brand-text{font-size:15px}
  .article-section{padding-bottom:48px}
  .article-title{font-size:24px}
  .content-body{font-size:16px}
  .content-body h2{font-size:20px;margin-top:32px}
  .article-meta{gap:8px 16px}
  .prevnext{grid-template-columns:1fr}
  .pn-card.next{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .mega-links{grid-template-columns:1fr}
  .cta-inner h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand:#F2622E;
  --brand-strong:#D94F1E;
  --brand-soft:rgba(242,98,46,.10);
  --accent:#12B39A;
  --accent-soft:rgba(18,179,154,.12);
  --warn:#E0A02A;
  --ink:#14161C;
  --ink-2:#1E2129;
  --bg:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1D23;
  --muted:#5C616C;
  --border:#E5E1DB;
  --dark-text:#EDEBE7;
  --dark-muted:#9AA0AB;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(20,22,28,.06),0 8px 24px rgba(20,22,28,.08);
  --sh-2:0 12px 32px rgba(20,22,28,.12);
  --sp:8px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:ui-monospace,"DIN Alternate","Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-strong);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.35;letter-spacing:.2px}
p{margin:0 0 12px}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
summary{outline:none}
::selection{background:var(--brand);color:#fff}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-gap{margin-left:-12px;margin-right:-12px}
.grid-gap>.cell{padding-left:12px;padding-right:12px}
.section{padding:80px 0}
.section-alt{background:#FFFFFF;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{margin-bottom:32px;max-width:720px}
.section-head h2{font-size:28px;line-height:1.3;margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15px;margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}

/* ---------- 基础组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  text-decoration:none;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(242,98,46,.22)}
.btn-primary:hover{background:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(242,98,46,.28)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;color:var(--dark-text);border-color:rgba(255,255,255,.28)}
.btn-ghost-dark:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.6);transform:translateY(-1px)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
.tag{
  display:inline-block;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;
  background:var(--accent-soft);color:#0E8C79;white-space:nowrap;
}
.tag-orange{background:var(--brand-soft);color:var(--brand-strong)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);border-bottom:1px solid rgba(255,255,255,.06)}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:36px;gap:16px;flex-wrap:wrap;
}
.topbar p{margin:0;font-size:13px;color:var(--dark-muted);display:flex;align-items:center;gap:8px}
.topbar-status .dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(18,179,154,.16);display:inline-block;
}
.topbar a{color:var(--dark-text)}
.topbar a:hover{color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--border)}
.navbar{padding:0}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,#F2622E,#FF9360);
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;
}
.brand-text{font-weight:700;font-size:16.5px;letter-spacing:.2px;white-space:nowrap}
.site-nav{display:flex;align-items:center;gap:28px}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-item>a{
  display:block;position:relative;padding:22px 14px;
  font-size:15px;font-weight:600;color:var(--text);
}
.nav-item>a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:12px;height:3px;border-radius:3px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-item>a:hover{color:var(--brand);text-decoration:none}
.nav-item>a:hover::after,.nav-item.is-active>a::after{transform:scaleX(1)}
.nav-item.is-active>a{color:var(--brand)}
.mega-wrap{position:relative}
.mega-trigger{
  background:transparent;border:1px solid var(--border);border-radius:999px;
  padding:9px 18px;font-size:14px;font-weight:600;color:var(--text);cursor:pointer;
  transition:border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:800px;
  background:#fff;border:1px solid var(--border);border-radius:18px;
  box-shadow:var(--sh-1);padding:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s;
  z-index:70;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel,.mega-wrap.is-open .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.mega-col h4{font-size:13px;letter-spacing:.6px;color:var(--muted);font-weight:700;margin-bottom:12px;text-transform:uppercase}
.mega-links li{margin-bottom:2px}
.mega-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:7px 10px;border-radius:8px;font-size:14px;color:var(--text);
  transition:background .16s ease-out,color .16s ease-out;
}
.mega-links a::after{content:"›";color:var(--muted);font-size:15px}
.mega-links a:hover{background:var(--bg);color:var(--brand);text-decoration:none}
.mega-links a:hover::after{color:var(--brand)}
.mega-posts li{margin-bottom:10px}
.mega-posts a{display:flex;gap:10px;align-items:center;padding:6px;border-radius:10px;transition:background .16s ease-out}
.mega-posts a:hover{background:var(--bg);text-decoration:none}
.mega-posts .thumb{width:72px;height:48px;border-radius:8px;overflow:hidden;flex:none;background:var(--bg)}
.mega-posts .thumb img{width:100%;height:100%;object-fit:cover}
.mega-posts strong{display:block;font-size:13.5px;font-weight:600;color:var(--text);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mega-posts em{display:block;font-style:normal;font-size:12px;color:var(--muted);margin-top:2px}
.mega-card{background:var(--bg);border:1px dashed var(--border);border-radius:12px;padding:16px}
.mega-card h4{font-size:15px;color:var(--text);letter-spacing:0;text-transform:none;margin-bottom:6px}
.mega-card p{font-size:13px;color:var(--muted);margin-bottom:12px;line-height:1.65}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--border);
  background:#fff;padding:10px;flex-direction:column;justify-content:space-between;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .18s ease-out,opacity .18s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- 分类页 Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink);padding:76px 0 72px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 42px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 42px),
    radial-gradient(760px 420px at 88% 6%,rgba(242,98,46,.26),transparent 62%),
    linear-gradient(135deg,rgba(20,22,28,.94),rgba(32,36,46,.90));
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:40px;line-height:1.28;color:#fff;margin-bottom:16px;max-width:640px}
.page-hero h1 em{font-style:normal;color:#FF9C6E}
.hero-sub{font-size:17px;color:#FFB894;font-weight:600;margin-bottom:14px}
.hero-desc{font-size:15.5px;color:var(--dark-muted);line-height:1.9;max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-mini{display:flex;gap:10px;flex-wrap:wrap}
.hero-mini li{
  font-size:13px;color:var(--dark-text);font-weight:600;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
}
.hero-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 24px 56px rgba(0,0,0,.42);
  aspect-ratio:16/9;background:#20242E;
}
.hero-card img{width:100%;height:100%;object-fit:cover}
.status-badge{
  position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(20,22,28,.72);color:#fff;border:1px solid rgba(255,255,255,.16);
}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.9s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.82)}}
.hero-card figcaption{
  position:absolute;right:14px;bottom:12px;font-size:12px;color:#fff;
  font-family:var(--font-num);letter-spacing:.4px;
  background:rgba(20,22,28,.66);padding:5px 10px;border-radius:8px;
}

/* ---------- 步骤条目流 ---------- */
.step-list{border-top:1px solid var(--border)}
.step-item{
  position:relative;display:grid;grid-template-columns:44px 200px 1fr auto;
  gap:20px;align-items:center;
  padding:20px 6px 20px 18px;border-bottom:1px solid var(--border);
  transition:transform .18s ease-out,background .18s ease-out;
}
.step-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:center;
  transition:transform .18s ease-out;
}
.step-item:hover{transform:translateX(4px)}
.step-item:hover::before{transform:scaleY(1)}
.step-no{font-family:var(--font-num);font-size:18px;font-weight:700;color:#CFC9C1}
.step-item:hover .step-no{color:var(--brand)}
.step-thumb{width:200px;height:130px;border-radius:10px;overflow:hidden;background:#EDEAE5;flex:none}
.step-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.step-item:hover .step-thumb img{transform:scale(1.04)}
.step-body h3{font-size:17.5px;margin-bottom:6px}
.step-body p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:92px}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--brand)}
.point-list li{
  position:relative;padding:9px 0 9px 18px;font-size:14px;color:var(--muted);
  border-bottom:1px dashed var(--border);line-height:1.7;
}
.point-list li:last-child{border-bottom:0}
.point-list li::before{
  content:"";position:absolute;left:0;top:17px;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.entry-card{
  background:linear-gradient(135deg,#14161C,#20242E);border-color:rgba(255,255,255,.08);
}
.entry-card h3{color:#fff}
.entry-card h3::before{background:var(--accent)}
.entry-card p{font-size:14px;color:var(--dark-muted);line-height:1.75;margin-bottom:16px}
.entry-card .btn{width:100%}
.mini-posts li+li{border-top:1px solid var(--border);margin-top:12px;padding-top:12px}
.mini-posts a{display:block;color:var(--text)}
.mini-posts a:hover{color:var(--brand);text-decoration:none}
.mini-posts .t{font-size:14.5px;font-weight:600;line-height:1.6;margin-bottom:4px}
.mini-posts .d{font-size:12.5px;color:var(--muted);font-family:var(--font-num)}

/* ---------- 常见卡点 ---------- */
.issue-visual{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:4/3;background:#EDEAE5;margin-top:22px}
.issue-visual img{width:100%;height:100%;object-fit:cover}
.issue-list li{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:18px 0;border-bottom:1px solid var(--border);
}
.issue-list li:first-child{padding-top:0}
.issue-list li:last-child{border-bottom:0}
.issue-ico{
  width:52px;height:52px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-strong);
  font-family:var(--font-num);font-weight:700;font-size:16px;
}
.issue-list h3{font-size:17px;margin-bottom:6px}
.issue-list p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.78}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:12px}
.flow-item{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#F3CDB9}
.flow-item .n{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:1px;margin-bottom:12px;display:block;
}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}

/* ---------- FAQ ---------- */
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:#F3CDB9;box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:none;margin-top:-4px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .18s ease-out;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-item[open] summary{color:var(--brand)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-body p:last-child{margin-bottom:0}

/* ---------- 底部 CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 42px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 42px),
    radial-gradient(620px 320px at 12% 100%,rgba(242,98,46,.20),transparent 65%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:26px;color:#fff;margin-bottom:8px}
.cta-inner p{color:var(--dark-muted);font-size:15px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#101218;padding:64px 0 0;color:var(--dark-muted)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.site-footer .brand{color:#fff}
.site-footer .brand:hover{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;margin:16px 0 0;max-width:340px;color:var(--dark-muted)}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--dark-muted)}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0;font-size:13px}
.footer-bottom p{margin:0}
.footer-bottom a{color:var(--dark-text)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--border);
    box-shadow:var(--sh-1);padding:8px 16px 20px;max-height:78vh;overflow-y:auto;
  }
  .site-nav.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item>a{padding:14px 4px;border-bottom:1px solid var(--border)}
  .nav-item>a::after{display:none}
  .nav-item.is-active>a{color:var(--brand)}
  .mega-wrap{width:100%;margin-top:14px}
  .mega-trigger{width:100%;border-radius:10px}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    display:none;box-shadow:none;border-radius:12px;margin-top:12px;padding:16px;
  }
  .mega-wrap.is-open .mega-panel{display:block}
  .mega-grid{grid-template-columns:1fr;gap:18px}
  .side-col{position:static;margin-top:36px}
  .page-hero h1{font-size:34px}
  .step-item{grid-template-columns:38px 160px 1fr;gap:16px}
  .step-item .tag{display:none}
  .flow{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .section-head h2{font-size:23px}
  .page-hero{padding:52px 0 48px}
  .page-hero h1{font-size:29px;line-height:1.34}
  .hero-sub{font-size:16px}
  .step-item{grid-template-columns:1fr;gap:12px;padding:20px 4px 20px 16px}
  .step-no{font-size:15px}
  .step-thumb{width:100%;height:auto;aspect-ratio:16/9}
  .issue-list li{grid-template-columns:44px 1fr;gap:14px}
  .issue-ico{width:44px;height:44px;border-radius:10px;font-size:15px}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .topbar-date{display:none}
  .flow{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions .btn{width:100%}
  .faq-item summary{font-size:15.5px;padding:16px 16px}
  .faq-body{padding:0 16px 18px}
}

/* roulang page: category2 */
:root{
  --brand:#F2622E;
  --brand-dark:#D94F1E;
  --brand-soft:rgba(242,98,46,.12);
  --teal:#12B39A;
  --teal-soft:rgba(18,179,154,.14);
  --ink:#14161C;
  --ink-2:#1E2129;
  --paper:#F6F4F1;
  --card:#FFFFFF;
  --text:#1B1D23;
  --muted:#5C616C;
  --line:#E5E1DB;
  --dtext:#EDEBE7;
  --dmuted:#9AA0AB;
  --warn:#D98A1F;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-input:10px;
  --sh:0 1px 2px rgba(20,22,28,.06),0 8px 24px rgba(20,22,28,.08);
  --sh-lg:0 12px 32px rgba(20,22,28,.12);
  --sp:8px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--text);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:.2px}
p{margin:0}
button,input,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 rgba(20,22,28,.06)}
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px;padding-top:4px;padding-bottom:4px}
.topbar p{margin:0;font-size:13px;color:var(--muted);line-height:1.5}
.topbar-status{display:flex;align-items:center;gap:8px}
.topbar-status .dot{width:8px;height:8px;border-radius:50%;background:var(--warn);box-shadow:0 0 0 3px rgba(217,138,31,.14)}
.topbar-date{white-space:nowrap}

/* ---------- 导航 ---------- */
.navbar{background:#fff;border-bottom:1px solid var(--line)}
.navbar-inner{display:flex;align-items:center;gap:16px;min-height:66px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),#FF8A4C);
  color:#fff;font-weight:700;font-size:17px;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.3px}
.site-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item a{
  position:relative;display:block;padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text);
}
.nav-item a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-item a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-item a:hover::after,.nav-item.is-active a::after{transform:scaleX(1)}
.nav-item.is-active a{color:var(--brand-dark);font-weight:600}

.nav-toggle{
  display:none;width:44px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;padding:10px 11px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;margin:4px 0;transition:transform .18s ease-out,opacity .18s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--text);font-size:15px;font-weight:500;cursor:pointer;
  transition:border-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.mega-trigger::after{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .18s ease-out}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand-dark)}
.mega-wrap.open .mega-trigger,.mega-wrap:hover .mega-trigger,.mega-wrap:focus-within .mega-trigger{border-color:var(--brand);color:var(--brand-dark);box-shadow:0 0 0 3px var(--brand-soft)}
.mega-wrap.open .mega-trigger::after,.mega-wrap:hover .mega-trigger::after{transform:rotate(225deg) translateY(-2px)}

.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:860px;max-width:calc(100vw - 48px);
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-lg);padding:22px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.05fr 1.25fr .9fr;gap:22px}
.mega-col h4{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:1px;margin-bottom:10px}
.mega-links li a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:7px 8px;border-radius:8px;font-size:14px;color:var(--text);
}
.mega-links li a::after{content:"›";color:var(--dmuted);font-size:15px}
.mega-links li a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.mega-posts li + li{margin-top:10px}
.mega-posts li a{display:flex;gap:10px;padding:6px;border-radius:10px}
.mega-posts li a:hover{background:var(--paper)}
.mega-posts .thumb{flex:0 0 72px;width:72px;height:48px;border-radius:8px;overflow:hidden;background:#EDEAE5}
.mega-posts .thumb img{width:100%;height:100%}
.mega-posts .p-title{display:block;font-size:14px;line-height:1.5;color:var(--text)}
.mega-posts .p-meta{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.mega-entry{background:var(--ink);border-radius:14px;padding:18px;color:var(--dtext)}
.mega-entry h4{color:var(--dtext);font-size:15px;margin-bottom:6px}
.mega-entry p{font-size:13px;color:var(--dmuted);margin-bottom:14px;line-height:1.65}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .16s ease-out,background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(242,98,46,.28)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--dtext);overflow:hidden;padding:64px 0 56px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.055;
  background-image:linear-gradient(to right,rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;pointer-events:none;
  background:radial-gradient(circle,rgba(242,98,46,.34),rgba(242,98,46,0) 66%);
}
.hero-inner{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dmuted);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--dmuted)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.28)}
.crumb .current{color:var(--dtext)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(18,179,154,.16);color:#5BE3CB;font-size:13px;font-weight:600;letter-spacing:.6px;margin-bottom:18px;
}
.hero h1{font-size:40px;line-height:1.25;letter-spacing:.4px;margin-bottom:16px}
.hero h1 .hl{color:#FF8A4C}
.hero .lede{font-size:17px;color:var(--dmuted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px}
.fact{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);font-size:13px;color:var(--dtext);
}
.fact .dot{width:6px;height:6px;border-radius:50%;background:var(--teal)}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.08);background:var(--ink-2)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-media figcaption{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 16px;background:var(--ink-2);font-size:13px;color:var(--dmuted);
}
.hero-media .status{display:inline-flex;align-items:center;gap:8px;color:#5BE3CB;font-weight:600}
.hero-media .pulse{width:8px;height:8px;border-radius:50%;background:var(--teal);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(1.35)}}

/* ---------- 板块通用 ---------- */
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:28px;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--muted);
}
.chip.is-on{background:var(--brand-soft);border-color:rgba(242,98,46,.3);color:var(--brand-dark);font-weight:600}

/* ---------- 说明卡 ---------- */
.intro-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh);
  padding:32px;display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;
}
.intro-card h2{font-size:26px;margin-bottom:14px}
.intro-card p{color:var(--muted);font-size:15.5px;margin-bottom:14px}
.intro-points{margin-top:6px}
.intro-points li{display:flex;gap:10px;font-size:15px;color:var(--text);padding:7px 0;border-top:1px dashed var(--line)}
.intro-points li:first-child{border-top:0}
.intro-points li span{flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--teal-soft);color:#0C8C79;font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:5px}
.intro-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#EDEAE5}
.intro-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- 卡片网格 ---------- */
.card-grid{margin-top:-16px}
.card-grid > .cell{padding-top:16px}
.set-card{
  position:relative;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.set-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:rgba(242,98,46,.35)}
.set-card .thumb{position:relative;background:#EDEAE5}
.set-card .thumb img{width:100%;aspect-ratio:4/3;object-fit:cover}
.badge-corner{
  position:absolute;right:12px;top:12px;padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.5px;color:#fff;background:var(--brand);
}
.badge-corner.teal{background:var(--teal)}
.set-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.set-card h3{font-size:17px;margin-bottom:8px}
.set-card p{font-size:14.5px;color:var(--muted);line-height:1.75;flex:1}
.set-card .foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.set-card .foot a{font-weight:600;color:var(--brand-dark)}
.set-card .foot a:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 流程 ---------- */
.flow-wrap{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:var(--sh)}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:6px}
.flow-step{position:relative;padding:20px 18px;border-radius:var(--r-card);background:var(--paper);border:1px solid var(--line)}
.flow-step::after{
  content:"";position:absolute;right:-11px;top:44px;width:14px;height:2px;background:var(--line);
}
.flow-step:last-child::after{display:none}
.flow-step .num{
  font-family:ui-monospace,"DIN Alternate","Roboto Mono",monospace;
  font-size:22px;font-weight:700;color:var(--brand);letter-spacing:1px;
}
.flow-step h3{font-size:16px;margin:8px 0 6px}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--sh)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-dark);background:#FDFBF9}
.faq-item summary .arrow{
  flex:0 0 auto;width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .18s ease-out,border-color .18s ease-out;margin-top:-4px;
}
.faq-item[open] summary .arrow{transform:rotate(225deg);border-color:var(--brand)}
.faq-item .answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:860px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink);color:var(--dtext);border-radius:18px;overflow:hidden;
  padding:40px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(to right,rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:40px 40px;
}
.cta-band h2{position:relative;font-size:24px;line-height:1.4;max-width:520px}
.cta-band .cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:#101218;color:var(--dmuted);padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.06);margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer .brand-text{color:var(--dtext)}
.site-footer .footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;max-width:320px}
.footer-col h4{font-size:14px;color:var(--dtext);margin-bottom:14px;letter-spacing:.6px}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:14px;color:var(--dmuted)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;
}
.footer-bottom p{margin:0}
.footer-bottom a{color:#B9BFC9}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .navbar-inner{position:relative;flex-wrap:wrap}
  .nav-toggle{display:block;margin-left:auto}
  .site-nav{
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    width:100%;padding:12px 0 18px;margin-left:0;border-top:1px solid var(--line);
  }
  .site-nav.open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-item a{padding:12px 10px}
  .nav-item a::after{display:none}
  .nav-item.is-active a{background:var(--brand-soft)}
  .mega-wrap{width:100%}
  .mega-trigger{width:100%;justify-content:space-between}
  .mega-panel{
    position:static;width:100%;max-width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border-radius:12px;margin-top:10px;display:none;padding:18px;
  }
  .mega-wrap.open .mega-panel{display:block}
  .mega-grid{grid-template-columns:1fr 1fr;gap:18px}
  .hero{padding:48px 0 44px}
  .hero h1{font-size:32px}
  .hero-media{margin-top:28px}
  .intro-card{grid-template-columns:1fr;padding:26px}
  .flow{grid-template-columns:1fr 1fr}
  .flow-step::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .hero h1{font-size:28px;line-height:1.35}
  .hero .lede{font-size:15.5px}
  .mega-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .cta-band h2{font-size:20px}
  .faq-item summary{padding:18px;font-size:16px}
  .faq-item .answer{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media screen and (max-width:520px){
  .brand-text{font-size:15px}
  .topbar-inner{flex-direction:column;align-items:flex-start;gap:2px;padding:6px 0}
  .hero{padding:40px 0 36px}
  .hero-actions .btn{width:100%}
  .fact{font-size:12px;padding:6px 11px}
  .flow{grid-template-columns:1fr}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}