/* roulang page: index */
:root{
  --brand:#FF5A1F;
  --brand-2:#E01F4F;
  --grad:linear-gradient(115deg,#FF5A1F 0%,#E01F4F 100%);
  --teal:#12C7B4;
  --lime:#C9F24D;
  --ink:#161D24;
  --text:#4B5563;
  --muted:#8A94A0;
  --line:#F0E2D6;
  --bg:#FFF9F4;
  --bg-alt:#FFF2EA;
  --dark:#1B120E;
  --ok:#12A67A;
  --warn:#E8A317;
  --err:#D93A3A;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-xl:32px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(22,29,36,.04);
  --shadow-2:0 8px 24px -8px rgba(224,31,79,.16);
  --shadow-3:0 20px 48px -16px rgba(22,29,36,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol,dl{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(255,90,31,.32);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 32px}
.narrow{max-width:800px;margin:0 auto}
.section{padding:104px 0}
.section.alt{background:var(--bg-alt)}
.section.plain{background:#fff}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;line-height:1;
  padding:15px 28px;min-height:48px;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background-image:var(--grad);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff;box-shadow:var(--shadow-3)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--brand);border-radius:14px}
.btn-ghost:hover{background:var(--bg-alt);border-color:var(--brand);color:var(--brand)}
.btn-light{background:#fff;color:var(--brand);border-radius:var(--r-pill)}
.btn-light:hover{background:var(--bg-alt);color:var(--brand-2)}
.btn-sm{padding:11px 20px;min-height:40px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{background:rgba(255,255,255,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 1px 2px rgba(22,29,36,.06)}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 32px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;
  height:78px;
}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end;gap:10px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:15px;font-weight:600;color:var(--ink);
  border-radius:12px;transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--bg-alt);text-decoration:none}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background-image:var(--grad);
}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center}
.brand:hover{text-decoration:none}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background-image:var(--grad);
  display:grid;place-items:center;box-shadow:var(--shadow-2);flex:none;
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-cta{display:none}

.drawer-mask{
  position:fixed;inset:0;background:rgba(22,29,36,.4);opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:130;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;right:0;z-index:140;
  background:#fff;border-radius:0 0 var(--r-lg) var(--r-lg);
  padding:18px 20px 24px;transform:translateY(-102%);
  transition:transform .32s var(--ease);box-shadow:var(--shadow-3);
  max-height:100vh;overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;background:#fff}
.drawer-close svg{width:18px;height:18px}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--ink);font-weight:600;font-size:16px;
}
.drawer-nav a:hover{background:var(--bg-alt);color:var(--brand);text-decoration:none}
.drawer-nav a.active{background:var(--bg-alt);color:var(--brand)}
.drawer-nav a i{font-style:normal;font-size:13px;color:var(--muted)}
.drawer-cta{margin-top:16px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--dark);isolation:isolate}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center 32%;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(27,18,14,.94) 0%,rgba(27,18,14,.76) 40%,rgba(224,31,79,.45) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:center;
  padding-top:88px;padding-bottom:88px;
}
.hero-copy{max-width:640px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--lime);font-style:normal}
.hero h1{
  margin:20px 0 0;color:#fff;
  font-size:clamp(28px,4.2vw,44px);line-height:1.2;font-weight:900;letter-spacing:.01em;
}
.hero-sub{margin-top:16px;color:rgba(255,255,255,.82);font-size:17px;line-height:1.75;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-actions .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34);color:#fff;border-radius:var(--r-pill)}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.18);border-color:#fff;color:#fff}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.stat{
  min-width:132px;padding:14px 18px;border-radius:16px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.stat-num{display:block;font-size:24px;font-weight:800;color:#fff;line-height:1.2}
.stat-num small{font-size:13px;font-weight:600;margin-left:2px;color:var(--lime)}
.stat-label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-top:4px}

.hero-card{
  background:#fff;border-radius:var(--r-xl);padding:26px;
  box-shadow:var(--shadow-3);border:1px solid var(--line);position:relative;
}
.hero-card::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background-image:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.hero-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.hero-card-title{font-size:18px;font-weight:800;color:var(--ink)}
.hero-card-badge{
  font-size:12px;font-weight:700;color:#7a4a00;background:var(--lime);
  padding:4px 10px;border-radius:var(--r-pill);
}
.hero-card-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.hero-card-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text);line-height:1.6}
.hero-card-list svg{width:18px;height:18px;flex:none;margin-top:5px}
.hero-card .btn{margin-top:22px}
.hero-card-note{margin-top:12px;font-size:13px;color:var(--muted);text-align:center}

/* ---------- badge strip ---------- */
.badge-strip{background:#fff;border-bottom:1px solid var(--line)}
.badge-strip-inner{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  gap:1px;background:var(--line);
}
.badge-cell{background:#fff;padding:26px 22px;display:flex;gap:12px;align-items:flex-start}
.badge-cell svg{width:22px;height:22px;flex:none;margin-top:3px}
.badge-cell b{display:block;font-size:16px;font-weight:800;color:var(--ink)}
.badge-cell span{display:block;font-size:13px;color:var(--muted);margin-top:4px;line-height:1.6}

/* ---------- section heading ---------- */
.sec-head{max-width:760px;margin:0 auto 48px;text-align:center}
.sec-head.left{margin-left:0;text-align:left}
.sec-tag{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand);
  background:var(--bg-alt);padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.sec-head h2{
  font-size:clamp(22px,3vw,32px);font-weight:800;color:var(--ink);line-height:1.32;letter-spacing:.01em;
  position:relative;
}
.sec-head h2::after{
  content:"";display:block;width:52px;height:4px;border-radius:4px;
  background-image:var(--grad);margin:16px auto 0;
}
.sec-head.left h2::after{margin-left:0}
.sec-head p{margin-top:16px;font-size:16px;color:var(--text);line-height:1.85}

/* ---------- benefit table ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-1)}
table.benefit{width:100%;border-collapse:collapse;min-width:660px}
table.benefit caption{
  caption-side:top;text-align:left;padding:20px 24px 4px;font-size:15px;font-weight:700;color:var(--ink);
}
table.benefit thead th{
  position:sticky;top:78px;z-index:2;background:#fff;
  padding:18px 22px;font-size:15px;font-weight:800;color:var(--ink);text-align:center;
  border-bottom:1px solid var(--line);
}
table.benefit thead th:first-child{text-align:left}
table.benefit thead th .th-inner{
  display:inline-block;padding:6px 16px;border-radius:var(--r-pill);border:1px solid var(--line);
}
table.benefit thead th.is-hot .th-inner{background-image:var(--grad);color:#fff;border-color:transparent}
table.benefit tbody th{
  text-align:left;padding:15px 22px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);background:#fff;
}
table.benefit tbody td{
  text-align:center;padding:15px 22px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);
}
table.benefit tbody tr:nth-child(even) th,table.benefit tbody tr:nth-child(even) td{background:var(--bg)}
table.benefit tbody tr:last-child th,table.benefit tbody tr:last-child td{border-bottom:0}
table.benefit td.is-hot{background:var(--bg-alt) !important}
.mark-yes{display:inline-flex;align-items:center;gap:6px;color:var(--teal);font-weight:700}
.mark-yes svg{width:16px;height:16px}
.mark-no{color:var(--muted)}
.mobile-benefits{display:none}

/* ---------- level cards ---------- */
.level-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.level-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 26px 26px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.level-card::before{
  content:"";position:absolute;top:0;left:26px;right:26px;height:4px;border-radius:0 0 4px 4px;background:var(--teal);
}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.level-card.featured{
  transform:scale(1.04);z-index:2;
  box-shadow:var(--shadow-3);border-color:transparent;
}
.level-card.featured::before{background-image:var(--grad);left:0;right:0;height:6px}
.level-card.featured:hover{transform:scale(1.04) translateY(-4px)}
.level-flag{
  position:absolute;top:14px;right:14px;
  background:var(--lime);color:#5c3d00;font-size:12px;font-weight:800;
  padding:4px 12px;border-radius:var(--r-pill);
}
.level-name{font-size:20px;font-weight:800;color:var(--ink)}
.level-sub{font-size:13px;color:var(--muted);margin-top:6px}
.level-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.level-points li{display:flex;gap:10px;font-size:15px;line-height:1.65;color:var(--text)}
.level-points svg{width:17px;height:17px;flex:none;margin-top:5px}
.level-card .btn{margin-top:24px}
.level-price{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}

/* ---------- preview grid ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.preview-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;background:#FFF2EA;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.preview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.preview-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#FFE6D8}
.preview-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.preview-card:hover .preview-thumb img{transform:scale(1.04)}
.preview-body{padding:18px 18px 22px;background:#fff}
.tag{
  display:inline-block;font-size:12px;font-weight:700;color:var(--brand);
  background:var(--bg-alt);border-radius:var(--r-pill);padding:4px 12px;
}
.preview-body h3{margin-top:12px;font-size:17px;font-weight:700;color:var(--ink);line-height:1.5}
.preview-body p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.locked .preview-thumb::after{
  content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(27,18,14,.2),rgba(224,31,79,.7));
}
.lock-note{
  position:absolute;left:12px;bottom:12px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.94);color:var(--ink);
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:var(--r-pill);
}
.lock-note svg{width:13px;height:13px}

/* ---------- news ---------- */
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head-row .sec-head{margin:0;text-align:left}
.sec-head-row .sec-head h2::after{margin-left:0}
.sec-head-row .sec-head p{margin-top:12px}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:#FFE6D8}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-title{margin-top:12px;font-size:17px;font-weight:700;line-height:1.5}
.news-title a{color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--brand);text-decoration:none}
.news-excerpt{
  margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.news-meta time{font-variant-numeric:tabular-nums}
.read-more{font-size:13px;font-weight:700}
.empty-state{
  grid-column:1/-1;min-height:240px;border:1px dashed var(--line);border-radius:var(--r-md);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:40px 24px;text-align:center;
}
.empty-state svg{width:40px;height:40px;color:var(--muted)}
.empty-state p{font-size:15px;color:var(--muted)}

/* ---------- proof ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.proof-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:16px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.proof-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.proof-stars{display:flex;gap:3px}
.proof-stars svg{width:16px;height:16px;color:var(--warn)}
.proof-card blockquote{font-size:15px;line-height:1.8;color:var(--ink)}
.proof-user{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.proof-avatar{
  width:40px;height:40px;border-radius:12px;flex:none;
  background-image:var(--grad);display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;
}
.proof-user b{display:block;font-size:14px;color:var(--ink)}
.proof-user span{display:block;font-size:12px;color:var(--muted)}

/* ---------- faq ---------- */
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--line);
  border-radius:16px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-left-color:var(--brand);box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 54px 20px 22px;position:relative;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:26px;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item .faq-answer{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-xl);
  padding:56px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-200px;border-radius:50%;
  background-image:var(--grad);opacity:.5;filter:blur(60px);
}
.cta-band::after{
  content:"";position:absolute;width:320px;height:320px;left:-120px;bottom:-180px;border-radius:50%;
  background:var(--teal);opacity:.22;filter:blur(70px);
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(22px,3vw,32px);font-weight:800;color:#fff;line-height:1.3}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.76);font-size:16px;line-height:1.8;max-width:520px}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px;align-items:stretch}
.cta-actions .btn{width:100%}
.cta-fineprint{position:relative;z-index:2;grid-column:1/-1;font-size:13px;color:rgba(255,255,255,.56);margin-top:-14px}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand span{font-size:18px;font-weight:800;color:var(--ink)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:var(--muted);max-width:320px}
.footer-col h3{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--text)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{font-size:14px;color:var(--text);display:flex;gap:8px;align-items:flex-start}
.footer-contact svg{width:16px;height:16px;flex:none;margin-top:5px;color:var(--brand)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{font-size:13px;color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}

.to-top{
  position:fixed;right:22px;bottom:22px;z-index:100;
  width:46px;height:46px;border-radius:14px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-2);display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top svg{width:18px;height:18px;color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .nav-wrap{padding:0 24px}
  .section{padding:80px 0}
  .hero-inner{padding-top:72px;padding-bottom:72px;gap:36px}
  .preview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .level-grid{gap:20px}
  .cta-band{padding:44px;grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-contact{grid-column:1/-1}
}
@media (max-width:1023px){
  .nav-side,.mobile-cta{display:none}
  .nav-wrap{grid-template-columns:44px 1fr auto;height:68px;gap:12px}
  .brand{justify-self:center}
  .nav-toggle{display:flex;grid-column:1}
  .mobile-cta{
    display:inline-flex;grid-column:3;align-items:center;justify-content:center;
    padding:0 16px;min-height:40px;font-size:14px;font-weight:700;color:#fff;
    border-radius:var(--r-pill);background-image:var(--grad);
  }
  .mobile-cta:hover{color:#fff;text-decoration:none;filter:brightness(1.06)}
  .hero-inner{grid-template-columns:1fr;padding-top:56px;padding-bottom:56px}
  .hero-copy{max-width:none}
  .hero-sub{max-width:none}
  .hero-card{max-width:520px}
  .news-grid,.proof-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .level-grid{grid-template-columns:1fr;gap:22px;max-width:620px;margin:0 auto}
  .level-card.featured{transform:none}
  .level-card.featured:hover{transform:translateY(-4px)}
  .badge-strip-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .badge-cell:last-child:nth-child(odd){grid-column:1/-1}
  table.benefit thead th{position:static}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:16px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .nav-wrap{padding:0 20px}
  .section{padding:56px 0}
  .brand-text{font-size:17px}
  .hero-inner{padding-top:44px;padding-bottom:48px;gap:28px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-stats{gap:10px}
  .stat{min-width:calc(50% - 5px);flex:1 1 calc(50% - 5px);padding:12px 14px}
  .stat-num{font-size:21px}
  .news-grid,.preview-grid,.proof-grid{grid-template-columns:1fr}
  .badge-strip-inner{grid-template-columns:1fr}
  .badge-cell{padding:20px}
  .table-wrap{display:none}
  .mobile-benefits{display:flex;flex-direction:column;gap:20px}
  .mb-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-1)}
  .mb-card h3{font-size:18px;font-weight:800;color:var(--ink)}
  .mb-card ul{margin-top:16px;display:flex;flex-direction:column;gap:11px}
  .mb-card li{display:flex;gap:10px;font-size:15px;line-height:1.6}
  .mb-card svg{width:16px;height:16px;flex:none;margin-top:5px}
  .mb-card .mt{margin-top:20px}
  .cta-band{padding:32px 24px;border-radius:var(--r-lg)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .sec-head h2::after{margin-left:auto;margin-right:auto}
  .sec-head.left h2::after{margin-left:0}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:480px){
  .hero-stats{gap:8px}
  .stat{min-width:100%;flex:1 1 100%}
  .hero-card{padding:20px}
  .btn{padding:14px 22px}
  .faq-item summary{padding:18px 48px 18px 18px;font-size:16px}
  .faq-item summary::after{right:18px}
  .faq-item .faq-answer{padding:0 18px 20px}
}

/* roulang page: category1 */
:root{
  --brand:#FF5A1F;
  --brand-2:#E01F4F;
  --grad:linear-gradient(115deg,#FF5A1F 0%,#E01F4F 100%);
  --teal:#12C7B4;
  --lime:#C9F24D;
  --ink:#161D24;
  --text:#4B5563;
  --muted:#8A94A0;
  --line:#F0E2D6;
  --bg:#FFF9F4;
  --bg-alt:#FFF2EA;
  --dark:#1B120E;
  --white:#FFFFFF;
  --ok:#12A67A;
  --warn:#E8A317;
  --err:#D93A3A;
  --radius-card:20px;
  --radius-lg:28px;
  --radius-xl:32px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(22,29,36,.04);
  --shadow-2:0 8px 24px -8px rgba(224,31,79,.16);
  --shadow-3:0 20px 48px -16px rgba(22,29,36,.18);
  --space-section:104px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:.01em;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:8px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:56px 0;}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-title h2{font-size:clamp(22px,3vw,32px);font-weight:800;position:relative;padding-left:16px;}
.section-title h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:999px;background:var(--grad);
}
.section-title p{font-size:14px;color:var(--muted);max-width:560px;}
.section-title .more{font-size:14px;font-weight:700;white-space:nowrap;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-2);background:rgba(255,255,255,.96);}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:78px;gap:16px;
}
.nav-side{display:flex;align-items:center;gap:4px;}
.nav-right{justify-content:flex-end;gap:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 13px;
  font-size:15px;font-weight:600;color:var(--text);border-radius:12px;text-decoration:none;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:3px;border-radius:999px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand);background:var(--bg-alt);text-decoration:none;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{transform:scaleX(1);}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;box-shadow:var(--shadow-2);flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.brand-name{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:.02em;white-space:nowrap;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background-color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-2);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff;box-shadow:var(--shadow-3);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand);}
.btn-ghost:hover{border-color:var(--brand);background:var(--bg-alt);color:var(--brand);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{filter:brightness(1.02);transform:translateY(-1px);color:var(--brand-2);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}
.mobile-toggle{display:none;}

.header-cta{display:none;}

/* ---------- mobile panel ---------- */
.mobile-mask{
  position:fixed;inset:0;background:rgba(22,29,36,.4);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.mobile-mask.open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;top:0;left:0;right:0;z-index:95;
  background:#fff;border-radius:0 0 28px 28px;box-shadow:var(--shadow-3);
  transform:translateY(-102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  padding:18px 20px 26px;
}
.mobile-panel.open{transform:translateY(0);}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.panel-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:22px;line-height:1;cursor:pointer;
}
.mobile-nav{display:grid;gap:4px;margin-bottom:16px;}
.mobile-nav a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:14px;
  font-size:16px;font-weight:600;color:var(--text);
}
.mobile-nav a:hover,.mobile-nav a.active{background:var(--bg-alt);color:var(--brand);text-decoration:none;}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:340px;display:flex;align-items:center;
  background:#1B120E url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(27,18,14,.94) 0%,rgba(224,31,79,.68) 46%,rgba(255,90,31,.30) 100%);
}
.cat-hero .hero-inner{position:relative;z-index:2;padding:64px 0;max-width:760px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;
}
.hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);}
.cat-hero h1{
  color:#fff;font-size:clamp(28px,4.2vw,44px);font-weight:900;line-height:1.2;
  text-shadow:0 2px 18px rgba(0,0,0,.28);
}
.cat-hero .hero-lead{
  color:rgba(255,255,255,.9);font-size:clamp(15px,1.6vw,18px);font-weight:600;margin-top:14px;
}
.cat-hero .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-actions .btn-on-dark{
  background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);color:#fff;
}
.hero-actions .btn-on-dark:hover{background:rgba(255,255,255,.24);border-color:#fff;color:#fff;transform:translateY(-1px);}

/* ---------- badge strip ---------- */
.badge-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:-42px;position:relative;z-index:5;
}
.badge-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px 22px;box-shadow:var(--shadow-2);display:flex;gap:14px;align-items:center;
}
.badge-icon{
  width:42px;height:42px;flex:0 0 auto;border-radius:14px;background:rgba(18,199,180,.12);
  display:grid;place-items:center;color:var(--teal);
}
.badge-icon svg{width:22px;height:22px;}
.badge-num{font-size:22px;font-weight:800;color:var(--ink);line-height:1.2;}
.badge-num span{font-size:13px;font-weight:700;color:var(--muted);margin-left:2px;}
.badge-label{font-size:13px;color:var(--muted);}

/* ---------- feature grid（双列大图卡） ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:#F6D5C0;}
.feature-media{position:relative;overflow:hidden;background:var(--bg-alt);}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .35s cubic-bezier(.2,.7,.3,1);background:var(--bg-alt);
}
.feature-card:hover .feature-media img{transform:scale(1.04);}
.feature-media .lock{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:rgba(27,18,14,.72);color:#fff;font-size:12px;font-weight:700;backdrop-filter:blur(4px);
}
.feature-media .lock .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);}
.feature-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--bg-alt);color:var(--brand);font-size:12px;font-weight:700;
}
.tag.tag-teal{background:rgba(18,199,180,.12);color:#0E9E90;}
.tag.tag-ink{background:rgba(22,29,36,.06);color:var(--text);}
.feature-body h3{font-size:19px;font-weight:700;line-height:1.4;}
.feature-body p{font-size:14.5px;color:var(--text);line-height:1.8;}
.feature-foot{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.feature-foot .read{font-weight:700;color:var(--brand);white-space:nowrap;}

/* ---------- steps ---------- */
.steps{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);background:#fff;}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  font-size:15px;font-weight:800;margin-bottom:14px;
}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--text);line-height:1.8;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  background:var(--dark);padding:48px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-140px;top:-160px;width:420px;height:420px;border-radius:50%;
  background:var(--grad);opacity:.42;filter:blur(20px);
}
.cta-band::after{
  content:"";position:absolute;right:120px;bottom:-180px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,77,.28) 0%,rgba(201,242,77,0) 70%);
}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{color:#fff;font-size:clamp(22px,3vw,30px);font-weight:800;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:10px;}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.6);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:0 22px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-item[open]{border-color:#F6D5C0;box-shadow:var(--shadow-2);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;list-style:none;cursor:pointer;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:14px;height:14px;
  border-right:2.5px solid var(--brand);border-bottom:2.5px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s ease;margin-right:4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--text);}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:var(--space-section);padding:60px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand .brand-mark svg{width:20px;height:20px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h3{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--brand);text-decoration:none;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.68);line-height:1.7;}
.footer-contact svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;color:var(--teal);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom nav a{color:rgba(255,255,255,.68);font-size:13px;}
.footer-bottom nav a:hover{color:var(--brand);text-decoration:none;}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--brand);display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top svg{width:20px;height:20px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .section{padding:64px 0;}
  .site-footer{margin-top:80px;}
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .nav-side{display:none;}
  .header-inner{grid-template-columns:auto 1fr auto;}
  .mobile-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
    color:var(--ink);cursor:pointer;
  }
  .mobile-toggle svg{width:22px;height:22px;}
  .brand{grid-column:2;}
  .header-cta{display:inline-flex;justify-self:end;}
  .badge-strip{grid-template-columns:repeat(2,1fr);margin-top:-34px;}
  .feature-grid{grid-template-columns:1fr;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cat-hero{min-height:320px;}
  .cat-hero .hero-inner{padding:52px 0;max-width:100%;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.8;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .site-footer{margin-top:56px;padding:44px 0 22px;}
  .header-inner{height:66px;}
  .brand-name{font-size:17px;}
  .brand-mark{width:32px;height:32px;border-radius:10px;}
  .badge-strip{grid-template-columns:1fr;gap:14px;margin-top:-26px;}
  .step-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:32px 22px;border-radius:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-item{padding:0 18px;border-radius:16px;}
  .faq-item summary{font-size:16px;}
  .feature-body{padding:20px;}
  .feature-body h3{font-size:17.5px;}
}
@media (max-width:480px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .badge-card{padding:16px 18px;}
  .badge-num{font-size:20px;}
}

/* roulang page: article */
:root{
  --brand:#FF5A1F;
  --brand-2:#E01F4F;
  --grad:linear-gradient(115deg,#FF5A1F 0%,#E01F4F 100%);
  --teal:#12C7B4;
  --lime:#C9F24D;
  --ink:#161D24;
  --text:#4B5563;
  --muted:#8A94A0;
  --line:#F0E2D6;
  --paper:#FFF9F4;
  --paper-alt:#FFF2EA;
  --dark:#1B120E;
  --ok:#12A67A;
  --warn:#E8A317;
  --err:#D93A3A;
  --r-card:20px;
  --r-lg:28px;
  --r-pill:999px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(22,29,36,.04);
  --shadow-2:0 8px 24px -8px rgba(224,31,79,.16);
  --shadow-3:0 20px 48px -16px rgba(22,29,36,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-2)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1200px){.container{padding:0 32px}}
.num,.data-num{font-variant-numeric:tabular-nums}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:78px;
}
.nav-side{display:flex;align-items:center;gap:6px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end;gap:12px}
.nav-right-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:44px;padding:0 12px;
  color:var(--ink);font-size:15px;font-weight:600;
  border-radius:12px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:3px;
  border-radius:3px;background-image:var(--grad);
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{transform:scaleX(1)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background-image:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);
}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em;white-space:nowrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{background-image:var(--grad);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{background:var(--paper-alt);border-color:var(--brand);color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

.nav-toggle{
  display:none;
  width:44px;height:44px;padding:0;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle[aria-expanded="true"]{border-color:var(--brand)}

.drawer-mask{position:fixed;inset:0;z-index:85;background:rgba(22,29,36,.4);display:none}
.drawer-mask.is-open{display:block}
.mobile-drawer{
  position:fixed;left:0;right:0;top:0;z-index:90;
  display:none;background:#fff;
  padding:18px 20px 26px;
  box-shadow:var(--shadow-3);
  border-bottom-left-radius:24px;border-bottom-right-radius:24px;
}
.mobile-drawer.is-open{display:block;animation:drawerIn .25s var(--ease)}
@keyframes drawerIn{from{transform:translateY(-14px);opacity:0}to{transform:none;opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-title{font-size:16px;font-weight:800;color:var(--ink)}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:18px}
.drawer-link{
  display:flex;align-items:center;height:48px;
  color:var(--ink);font-size:16px;font-weight:600;
  border-bottom:1px solid var(--line);
}
.drawer-link:hover,.drawer-link.active{color:var(--brand)}

@media(max-width:1023px){
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:66px;position:relative}
  .nav-left{display:none}
  .nav-right-links{display:none}
  .nav-toggle{display:inline-flex;order:-1}
  .brand{position:absolute;left:50%;transform:translateX(-50%)}
  .brand-name{font-size:17px}
}

/* ============ page head ============ */
.page-head{position:relative;background:var(--paper-alt);border-bottom:1px solid var(--line);overflow:hidden}
.page-head::after{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.16;pointer-events:none;
}
.page-head .container{position:relative;z-index:1;padding-top:26px;padding-bottom:38px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:16px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#D8C6B6}
.breadcrumb .current{
  color:var(--ink);font-weight:600;
  max-width:min(64ch,100%);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.24;font-weight:900;letter-spacing:.01em;
  max-width:920px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:10px 18px;margin-top:18px;
  font-size:14px;color:var(--muted);
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{width:15px;height:15px;color:var(--brand)}
.meta-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:rgba(255,90,31,.1);color:var(--brand);
  font-size:13px;font-weight:700;
}

/* ============ layout ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:44px;padding:44px 0 72px;
}
.article-main{min-width:0}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:56px;padding:56px 0 88px}
}

/* ============ article body ============ */
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 1em}
.article-body > p:first-child{font-size:17px}
.article-body h2{
  position:relative;
  margin:40px 0 16px;padding-left:16px;
  font-size:clamp(20px,2.4vw,26px);line-height:1.4;font-weight:800;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:3px;background-image:var(--grad);
}
.article-body h3{margin:28px 0 12px;font-size:19px;font-weight:700;color:var(--ink)}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:700;color:var(--ink)}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.article-body a:hover{color:var(--brand-2)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding:0}
.article-body li{position:relative;padding-left:26px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:5px;top:.72em;width:8px;height:8px;
  border-radius:50%;background-image:var(--grad);
}
.article-body ol{counter-reset:item}
.article-body ol li{counter-increment:item;padding-left:34px}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;
  width:22px;height:22px;border-radius:50%;
  background:rgba(255,90,31,.12);color:var(--brand);
  font-size:12px;font-weight:800;line-height:22px;text-align:center;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:4px solid var(--brand);background:var(--paper-alt);
  border-radius:0 16px 16px 0;color:#3F4A56;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:24px auto;width:100%;height:auto;background:var(--paper-alt)}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:#fff}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--paper-alt);color:var(--ink);font-weight:700}
.article-body code{background:var(--paper-alt);padding:2px 6px;border-radius:6px;font-size:.9em;color:var(--brand-2)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
@media(max-width:767px){
  .article-body{font-size:16px;line-height:1.85}
  .article-body table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap}
}

/* ============ empty state ============ */
.empty-state{
  max-width:800px;min-height:300px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:48px 24px;
}
.empty-icon{
  width:64px;height:64px;border-radius:20px;
  background:var(--paper-alt);display:flex;align-items:center;justify-content:center;
}
.empty-icon svg{width:30px;height:30px;color:var(--brand)}
.empty-state h2{font-size:20px;font-weight:800}
.empty-state p{font-size:15px;color:var(--muted);max-width:44ch}

/* ============ tags ============ */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  max-width:800px;margin:36px 0 0;padding-top:24px;border-top:1px solid var(--line);
}
.tag-label{font-size:13px;color:var(--muted);font-weight:600}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--paper-alt);color:var(--ink);
  font-size:13px;font-weight:600;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tag:hover{background:#fff;border-color:var(--brand);color:var(--brand)}

/* ============ member cta card ============ */
.member-card{
  position:relative;overflow:hidden;
  max-width:800px;margin:32px 0 0;padding:28px;
  border-radius:var(--r-lg);
  background:var(--dark);color:rgba(255,255,255,.75);
  box-shadow:var(--shadow-3);
}
.member-card::before{
  content:"";position:absolute;width:320px;height:320px;right:-110px;top:-140px;
  border-radius:50%;background-image:var(--grad);filter:blur(70px);opacity:.6;
}
.member-card-inner{position:relative;z-index:1}
.member-badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--lime);color:#2C3A08;
  font-size:12px;font-weight:800;margin-bottom:14px;
}
.member-card h2{color:#fff;font-size:clamp(19px,2.2vw,24px);font-weight:800;line-height:1.4}
.member-card p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:52ch}
.member-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px}
.member-note{font-size:13px;color:rgba(255,255,255,.55)}

/* ============ related ============ */
.section-block{max-width:800px;margin-top:52px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
.section-head h2{font-size:clamp(19px,2.2vw,24px);font-weight:800}
.section-head h2 span{
  display:inline-block;width:6px;height:20px;border-radius:3px;
  background-image:var(--grad);margin-right:10px;vertical-align:-3px;
}
.section-more{font-size:14px;font-weight:600}
.related-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#F6D9C6}
.card-thumb{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(120deg,#FFE7D9,#FFD9E2);
}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-cat{
  align-self:flex-start;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:rgba(18,199,180,.12);color:#0B8C7F;
  font-size:12px;font-weight:700;
}
.card-title{font-size:17px;font-weight:700;color:var(--ink);line-height:1.5}
.card-title a{color:inherit}
.card-title a:hover{color:var(--brand)}
.card-desc{
  font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* ============ post nav ============ */
.post-nav{display:grid;gap:16px;max-width:800px;margin-top:36px}
@media(min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav-item{
  display:block;padding:20px 22px;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.post-nav-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#F6D9C6}
.post-nav-label{display:block;font-size:12px;font-weight:700;color:var(--brand);letter-spacing:.02em}
.post-nav-title{display:block;margin-top:8px;font-size:16px;font-weight:700;color:var(--ink)}
.post-nav-desc{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:32px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:15px;font-weight:600;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.back-link:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.back-link svg{width:16px;height:16px}

/* ============ aside ============ */
.article-aside{display:flex;flex-direction:column;gap:24px}
.aside-sticky{display:flex;flex-direction:column;gap:24px}
@media(min-width:1024px){.aside-sticky{position:sticky;top:104px}}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.aside-card h3{font-size:16px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.aside-card h3::before{
  content:"";width:4px;height:16px;border-radius:2px;background-image:var(--grad);
}
.aside-list{display:flex;flex-direction:column}
.aside-list li{border-bottom:1px solid var(--line)}
.aside-list li:last-child{border-bottom:0}
.aside-list a{
  display:flex;align-items:center;gap:10px;
  padding:12px 0;font-size:15px;color:var(--ink);font-weight:600;
}
.aside-list a:hover{color:var(--brand)}
.aside-list .idx{
  flex:none;width:22px;height:22px;border-radius:8px;
  background:var(--paper-alt);color:var(--brand);
  font-size:12px;font-weight:800;line-height:22px;text-align:center;
  font-variant-numeric:tabular-nums;
}
.aside-vip{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:24px;
  background:var(--paper-alt);border:1px solid var(--line);
}
.aside-vip::after{
  content:"";position:absolute;width:200px;height:200px;right:-80px;bottom:-100px;
  border-radius:50%;background-image:var(--grad);filter:blur(60px);opacity:.28;
}
.aside-vip-inner{position:relative;z-index:1}
.aside-vip h3{font-size:17px;font-weight:800;margin-bottom:10px}
.aside-vip p{font-size:14px;line-height:1.8;color:var(--text);margin-bottom:16px}
.aside-vip ul{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.aside-vip li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--text)}
.aside-vip li svg{width:16px;height:16px;flex:none;margin-top:4px;color:var(--teal)}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:56px 0 24px;margin-top:16px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:38ch}
.footer-col h3{font-size:15px;color:#fff;font-weight:700;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.6)}
.footer-contact svg{width:18px;height:18px;flex:none;margin-top:4px;color:var(--brand)}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:rgba(255,255,255,.6);font-size:13px}
.footer-bottom a:hover{color:var(--brand)}

/* ============ back to top ============ */
.back-top{
  position:fixed;right:20px;bottom:24px;z-index:60;
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.back-top.is-visible{opacity:1;visibility:visible;transform:none}
.back-top svg{width:20px;height:20px}
.back-top:hover{background:var(--paper-alt)}
@media(max-width:767px){.back-top{right:14px;bottom:16px}}

/* roulang page: category2 */
:root{
  --brand:#FF5A1F;
  --brand-2:#E01F4F;
  --grad:linear-gradient(115deg,#FF5A1F 0%,#E01F4F 100%);
  --mint:#12C7B4;
  --lime:#C9F24D;
  --ink:#161D24;
  --text:#4B5563;
  --muted:#8A94A0;
  --line:#F0E2D6;
  --bg:#FFF9F4;
  --bg-alt:#FFF2EA;
  --white:#FFFFFF;
  --dark:#1B120E;
  --ok:#12A67A;
  --warn:#E8A317;
  --err:#D93A3A;
  --r-card:20px;
  --r-lg:28px;
  --r-btn:999px;
  --r-input:12px;
  --sh1:0 1px 2px rgba(22,29,36,.04);
  --sh2:0 8px 24px -8px rgba(224,31,79,.16);
  --sh3:0 20px 48px -16px rgba(22,29,36,.18);
  --sp-m:56px;
  --sp-t:80px;
  --sp-d:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:8px;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.01em;}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.2;font-weight:900;}
h2{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:800;}
h3{font-size:19px;line-height:1.45;font-weight:700;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
table{border-collapse:collapse;width:100%;}
.num{font-variant-numeric:tabular-nums;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1200px){.container{padding:0 32px;}}

.section{padding:var(--sp-m) 0;}
@media (min-width:768px){.section{padding:var(--sp-t) 0;}}
@media (min-width:1200px){.section{padding:var(--sp-d) 0;}}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  background:var(--bg-alt);border:1px solid var(--line);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:5px;border-radius:3px;background:var(--grad);
}
.section-head p{margin-top:12px;max-width:800px;color:var(--text);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1.2;text-align:center;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh2);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff;box-shadow:0 12px 28px -10px rgba(224,31,79,.4);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--brand);border-radius:14px;}
.btn-ghost:hover{border-color:var(--brand);background:var(--bg-alt);color:var(--brand);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{filter:brightness(1.02);transform:translateY(-1px);color:var(--brand);}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--bg-alt);color:#A33A12;border:1px solid var(--line);
}
.chip-mint{background:rgba(18,199,180,.12);color:#0B7C71;border-color:rgba(18,199,180,.3);}
.chip-lime{background:rgba(201,242,77,.35);color:#4C6A00;border-color:rgba(201,242,77,.7);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,249,244,.94);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh1);
}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:16px;height:76px;
}
.nav-side{display:flex;align-items:center;gap:2px;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:15px;font-weight:600;color:var(--ink);
  border-radius:999px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--bg-alt);text-decoration:none;}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;border-radius:3px;background:var(--grad);
}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;box-shadow:var(--sh2);flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.brand-name{font-size:19px;font-weight:800;color:var(--ink);white-space:nowrap;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;color:var(--ink);border:1px solid var(--line);background:#fff;
}
.nav-toggle svg{width:22px;height:22px;}
.nav-quick{display:none;}

.nav-drawer{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:#fff;border-radius:0 0 28px 28px;padding:20px;
  box-shadow:var(--sh3);transform:translateY(-112%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
.nav-drawer.open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:22px;line-height:1;color:var(--ink);background:#fff;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:12px;
  font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-nav a:last-child{border-bottom:0;}
.drawer-nav a.active{color:var(--brand);background:var(--bg-alt);}
.drawer-cta{margin-top:16px;}
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(22,29,36,.4);
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}

/* Hero */
.hero{
  position:relative;overflow:hidden;border-radius:0 0 32px 32px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 30%;
  background-color:#1B120E;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(27,18,14,.94) 0%,rgba(224,31,79,.74) 46%,rgba(255,90,31,.42) 100%);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,77,.24),rgba(201,242,77,0) 70%);
}
.hero-inner{position:relative;z-index:2;padding:56px 0 48px;max-width:860px;}
@media (min-width:768px){.hero-inner{padding:72px 0 64px;}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.crumbs a{color:rgba(255,255,255,.9);}
.crumbs a:hover{color:#fff;}
.crumbs span[aria-current]{color:rgba(255,255,255,.6);}
.hero h1{color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.28);}
.hero-lead{
  margin-top:16px;font-size:clamp(16px,1.7vw,18px);line-height:1.75;
  color:rgba(255,255,255,.9);max-width:640px;
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.hero-chips .chip{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.28);color:#fff;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:34px;max-width:620px;
}
.hero-stat{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  border-radius:18px;padding:14px 16px;backdrop-filter:blur(6px);
}
.hero-stat b{display:block;font-size:clamp(20px,2.4vw,26px);font-weight:800;color:#fff;line-height:1.2;}
.hero-stat span{font-size:12px;color:rgba(255,255,255,.84);}

/* 交错行 */
.data-rows{margin-top:8px;}
.data-row{
  position:relative;display:grid;grid-template-columns:1fr 1fr;gap:40px;
  align-items:center;padding:48px 0;border-bottom:1px solid var(--line);
}
.data-row:first-child{border-top:1px solid var(--line);}
.data-row figure{
  margin:0;position:relative;border-radius:24px;overflow:hidden;background:var(--bg-alt);box-shadow:var(--sh1);
}
.data-row img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:24px;
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
.data-row:hover img{transform:scale(1.04);}
.data-row:hover figure{box-shadow:var(--sh2);}
.row-index{
  position:absolute;left:50%;top:0;transform:translate(-50%,-50%);
  width:38px;height:38px;border-radius:999px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:800;
  box-shadow:0 6px 18px -6px rgba(224,31,79,.6);
}
.data-row.reverse figure{order:2;}
.data-row-body .chip{margin-bottom:12px;}
.data-row-body h3{font-size:clamp(19px,2.2vw,22px);font-weight:800;color:var(--ink);margin-bottom:10px;}
.data-row-body p{max-width:44ch;}
.point-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.point-list li{
  display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:#0B7C71;
  background:rgba(18,199,180,.1);border:1px solid rgba(18,199,180,.26);border-radius:999px;padding:5px 12px;
}
.point-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);flex:0 0 auto;
}

/* 数据维度卡 */
.dim-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.dim-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh1);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease;
}
.dim-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.dim-icon{
  width:44px;height:44px;border-radius:14px;background:rgba(18,199,180,.12);
  display:grid;place-items:center;color:#0B7C71;margin-bottom:14px;
}
.dim-icon svg{width:22px;height:22px;}
.dim-card h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.dim-card .dim-value{
  font-size:24px;font-weight:800;color:var(--brand);line-height:1.2;margin-bottom:6px;
}
.dim-card p{font-size:14.5px;color:var(--text);margin:0;}

/* 口径表格 */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);overflow:hidden;
}
.table-scroll{overflow-x:auto;}
.data-table{min-width:640px;}
.data-table caption{
  caption-side:top;text-align:left;padding:20px 24px 6px;font-size:15px;font-weight:700;color:var(--ink);
}
.data-table th,.data-table td{
  padding:15px 24px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);
}
.data-table thead th{
  font-size:13px;letter-spacing:.04em;color:var(--muted);font-weight:700;
  background:var(--bg-alt);white-space:nowrap;
}
.data-table tbody tr:nth-child(even){background:var(--bg);}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table td:first-child{font-weight:700;color:var(--ink);}
.mark-yes{display:inline-flex;align-items:center;gap:6px;color:#0B7C71;font-weight:700;font-size:14px;}
.mark-yes svg{width:16px;height:16px;}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-lg);
  padding:40px 28px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;left:-80px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.5),rgba(255,90,31,0) 68%);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(224,31,79,.45),rgba(224,31,79,0) 68%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;}
.cta-copy{max-width:620px;}
.cta-copy h2{color:#fff;margin-bottom:10px;}
.cta-copy p{color:rgba(255,255,255,.82);margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.6);}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-left:4px solid var(--brand);box-shadow:var(--sh1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;min-height:44px;font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:28px;height:28px;border-radius:999px;
  display:grid;place-items:center;font-size:18px;font-weight:700;
  color:var(--brand);background:var(--bg-alt);transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-answer{padding:0 22px 20px;font-size:15.5px;line-height:1.85;color:var(--text);}
.faq-answer a{font-weight:600;}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:56px 0 26px;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px;}
.footer-brand span:last-child{font-size:18px;font-weight:800;color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:34ch;}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.78);font-size:14.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.72);}
.footer-contact svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:var(--mint);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--brand);}

/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:999px;background:var(--grad);color:#fff;
  display:grid;place-items:center;box-shadow:var(--sh2);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top svg{width:20px;height:20px;}

/* 响应式 */
@media (max-width:1023px){
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px;}
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-quick{display:inline-flex;}
  .brand{justify-self:auto;margin:0 auto;}
  .brand-name{font-size:17px;}
  .brand-mark{width:32px;height:32px;border-radius:11px;}
  .data-row{grid-template-columns:1fr;gap:22px;padding:34px 0;}
  .data-row.reverse figure{order:0;}
  .row-index{position:static;transform:none;margin-bottom:14px;}
  .data-row-body p{max-width:none;}
  .dim-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .hero-stats{grid-template-columns:1fr 1fr;}
  .dim-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .data-table th,.data-table td{padding:13px 16px;}
  .faq-item summary{font-size:16px;padding:16px 16px;}
  .faq-answer{padding:0 16px 18px;}
}

/* roulang page: category3 */
:root{
  --brand:#FF5A1F;
  --brand-2:#E01F4F;
  --brand-grad:linear-gradient(115deg,#FF5A1F 0%,#E01F4F 100%);
  --teal:#12C7B4;
  --lime:#C9F24D;
  --ink:#161D24;
  --text:#4B5563;
  --muted:#8A94A0;
  --line:#F0E2D6;
  --bg:#FFF9F4;
  --bg-alt:#FFF2EA;
  --dark:#1B120E;
  --white:#FFFFFF;
  --ok:#12A67A;
  --warn:#E8A317;
  --err:#D93A3A;
  --r-xs:12px;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:28px;
  --r-xl:32px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(22,29,36,.04);
  --shadow-2:0 8px 24px -8px rgba(224,31,79,.16);
  --shadow-3:0 20px 48px -16px rgba(22,29,36,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--bg-alt);}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--brand-2);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.25;letter-spacing:.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:3px solid rgba(255,90,31,.32);outline-offset:2px;border-radius:8px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1200px){.container{padding:0 32px;}}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-weight:700;cursor:pointer;text-align:center;
  transition:transform .2s var(--ease),filter .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  min-height:44px;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-2);}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{background:var(--bg-alt);color:var(--brand);border-color:var(--brand);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{color:var(--brand-2);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-md{padding:12px 24px;font-size:15px;}
.btn-lg{padding:15px 30px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;filter:none;}

/* ============ 顶栏导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,249,244,.9);
  border-bottom:1px solid transparent;
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:76px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-left{justify-self:start;}
.nav-right{justify-self:end;}
.nav-link{
  position:relative;
  color:var(--text);
  font-size:15px;
  font-weight:600;
  padding:8px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:center;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{transform:scaleX(1);}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--brand-grad);
  display:grid;place-items:center;flex:none;box-shadow:var(--shadow-2);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);white-space:nowrap;letter-spacing:.01em;}
.brand:hover .brand-text{color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动端抽屉 */
.drawer{
  display:none;
  position:fixed;top:76px;left:0;right:0;z-index:130;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-3);
  padding:18px 20px 26px;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-group{margin-bottom:16px;}
.drawer-group h3{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.06em;margin-bottom:6px;}
.drawer-group a{
  display:flex;align-items:center;min-height:48px;
  color:var(--ink);font-weight:600;border-bottom:1px solid var(--line);
}
.drawer-group a.active{color:var(--brand);}
.drawer-mask{
  display:none;position:fixed;inset:76px 0 0 0;background:rgba(22,29,36,.4);z-index:125;
  opacity:0;pointer-events:none;transition:opacity .25s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

@media (max-width:1023px){
  .header-inner{grid-template-columns:auto 1fr auto;min-height:68px;gap:10px;}
  .nav-left,.nav-right nav{display:none;}
  .nav-right{gap:10px;}
  .nav-toggle{display:flex;}
  .brand{justify-self:start;}
  .brand-text{font-size:17px;}
  .drawer,.drawer-mask{display:block;}
  .drawer{top:68px;}
  .drawer-mask{inset:68px 0 0 0;}
}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  color:#fff;
  border-radius:0 0 var(--r-xl) var(--r-xl);
}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(27,18,14,.95) 0%,rgba(27,18,14,.78) 40%,rgba(224,31,79,.46) 100%);
}
.hero-inner{position:relative;z-index:2;padding:56px 0 62px;max-width:760px;}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:#fff;}
.crumb span.sep{opacity:.5;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block;}
.hero h1{
  color:#fff;font-size:clamp(28px,4.2vw,44px);font-weight:900;line-height:1.2;letter-spacing:.01em;
  margin-bottom:16px;
}
.hero-sub{color:rgba(255,255,255,.86);font-size:17px;line-height:1.7;margin-bottom:26px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
.hero-note{font-size:13px;color:rgba(255,255,255,.66);}
@media (max-width:767px){
  .hero-inner{padding:40px 0 46px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
}

/* ============ 板块通用 ============ */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:80px 0;}}
@media (min-width:1200px){.section{padding:104px 0;}}
.section-alt{background:var(--bg-alt);}
.section-white{background:#fff;}
.section-head{max-width:800px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{
  position:relative;padding-left:18px;
  font-size:clamp(22px,3vw,32px);font-weight:800;margin-bottom:14px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;background:var(--brand-grad);
}
.section-head.center .section-title{padding-left:0;}
.section-head.center .section-title::before{display:none;}
.section-desc{color:var(--text);font-size:16px;line-height:1.85;margin:0;}
.section-more{margin-top:14px;font-size:14px;font-weight:600;}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:56px;display:flex;flex-direction:column;gap:22px;}
.timeline::before{
  content:"";position:absolute;left:22px;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,#FF5A1F 0%,#E01F4F 100%);opacity:.85;
}
.tl-item{position:relative;}
.tl-num{
  position:absolute;left:-56px;top:20px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  display:grid;place-items:center;font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;box-shadow:var(--shadow-1);z-index:2;
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:#FFD9C2;}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
.tl-time{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--bg-alt);color:var(--brand);font-weight:700;font-size:13px;
  font-variant-numeric:tabular-nums;
}
.tl-card h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.tl-card p{color:var(--text);font-size:15.5px;line-height:1.8;margin:0 0 12px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:#FFF6F0;color:var(--brand);font-size:13px;font-weight:600;border:1px solid #FFE3D3;
}
.tag-teal{background:#EAFBF8;color:#0E9E8E;border-color:#C9F0EA;}
@media (max-width:520px){
  .timeline{padding-left:44px;gap:18px;}
  .timeline::before{left:14px;}
  .tl-num{left:-44px;top:18px;width:32px;height:32px;font-size:13px;}
  .tl-card{padding:18px;}
}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:1023px){.card-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media (max-width:600px){.card-grid{grid-template-columns:1fr;}}
.info-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:#FFD9C2;}
.card-media{
  position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);
}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .25s var(--ease);}
.info-card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17.5px;font-weight:700;}
.card-body p{font-size:15px;line-height:1.8;color:var(--text);margin:0;}
.card-foot{margin-top:auto;padding-top:10px;font-size:13px;color:var(--muted);}

/* ============ 数据徽章条 ============ */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media (max-width:1023px){.stat-strip{grid-template-columns:repeat(2,1fr);}}
@media (max-width:420px){.stat-strip{grid-template-columns:1fr;}}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.stat-top{display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.stat-top svg{width:18px;height:18px;color:var(--teal);}
.stat-label{font-size:13px;color:var(--muted);font-weight:600;}
.stat-value{
  font-size:26px;font-weight:800;color:var(--ink);line-height:1.1;
  font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:6px;
}
.stat-value em{font-size:13px;font-weight:600;color:var(--muted);font-style:normal;}
.stat-note{font-size:13px;color:var(--muted);margin-top:6px;}

/* ============ 深色 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  border-radius:var(--r-lg);padding:44px 36px;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:var(--brand-grad);filter:blur(90px);opacity:.42;
}
.cta-band::after{
  content:"";position:absolute;left:-100px;bottom:-160px;width:320px;height:320px;border-radius:50%;
  background:#12C7B4;filter:blur(110px);opacity:.18;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(22px,3vw,30px);font-weight:800;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15.5px;margin:0;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-foot{position:relative;z-index:2;margin-top:22px;font-size:13px;color:rgba(255,255,255,.6);}
@media (max-width:767px){
  .cta-band{padding:32px 22px;}
  .cta-actions .btn{width:100%;}
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--line);
  border-radius:var(--r-sm);box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-left-color:var(--brand);box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:17px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:none;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item .faq-answer{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text);
}
@media (max-width:520px){
  .faq-item summary{font-size:16px;padding:16px 16px;}
  .faq-item .faq-answer{padding:0 16px 18px;}
}

/* ============ 引导卡 ============ */
.guide-box{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--shadow-2);position:relative;overflow:hidden;
}
.guide-box::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--brand-grad);border-radius:5px;
}
.guide-box h3{font-size:20px;font-weight:800;margin-bottom:8px;}
.guide-box p{margin:0;font-size:15px;max-width:640px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:64px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px;}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:600px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px;}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:rgba(255,255,255,.8);font-size:14.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);margin:0;}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.72);}
.footer-contact svg{width:18px;height:18px;flex:none;margin-top:4px;color:var(--teal);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:rgba(255,255,255,.68);}
.footer-bottom a:hover{color:var(--brand);}

/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:110;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--brand);display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--shadow-3);opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease),transform .2s var(--ease);
}
.to-top.is-visible{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-2px);}
.to-top svg{width:20px;height:20px;}

/* roulang page: category4 */
:root{
  --brand:#FF5A1F;
  --brand-2:#E01F4F;
  --grad:linear-gradient(115deg,#FF5A1F 0%,#E01F4F 100%);
  --cyan:#12C7B4;
  --lime:#C9F24D;
  --ink:#161D24;
  --text:#4B5563;
  --muted:#8A94A0;
  --line:#F0E2D6;
  --bg:#FFF9F4;
  --bg-alt:#FFF2EA;
  --dark:#1B120E;
  --ok:#12A67A;
  --warn:#E8A317;
  --err:#D93A3A;
  --r-card:20px;
  --r-lg:30px;
  --r-btn:999px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(22,29,36,.04);
  --shadow-2:0 8px 24px -8px rgba(224,31,79,.16);
  --shadow-3:0 20px 48px -16px rgba(22,29,36,.18);
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-feature-settings:"tnum";
}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.25;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-2)}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1200px){.container{padding:0 32px}}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),filter .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--bg-alt);border-color:var(--brand);color:var(--brand)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,244,.92);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  min-height:var(--nav-h);
  gap:16px;
}
.nav-side{display:flex;align-items:center;gap:6px}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  color:var(--ink);font-size:15px;font-weight:600;border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--bg-alt)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:3px;border-radius:3px;background:var(--grad);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--ink);letter-spacing:.01em;
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  box-shadow:var(--shadow-2);
}
.brand-mark svg{width:22px;height:22px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink)}
.mobile-panel{
  display:none;position:fixed;top:0;left:0;right:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-3);padding:18px 0 24px;
  transform:translateY(-102%);
  transition:transform .28s cubic-bezier(.2,.7,.3,1);
}
.mobile-panel.open{transform:translateY(0)}
.mobile-panel .panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.mobile-panel .panel-group{margin-top:14px}
.mobile-panel .panel-group h4{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.06em;margin-bottom:6px}
.mobile-panel .panel-group a{
  display:flex;align-items:center;height:48px;color:var(--ink);font-weight:600;font-size:16px;
  border-bottom:1px solid var(--line);
}
.mobile-panel .panel-group a.active{color:var(--brand)}
.mobile-panel .panel-cta{margin-top:20px}
.overlay{
  display:none;position:fixed;inset:0;background:rgba(22,29,36,.4);z-index:70;
}
.overlay.open{display:block}

@media (max-width:1023px){
  .nav-side{display:none}
  .header-inner{grid-template-columns:44px 1fr auto;gap:12px}
  .brand{justify-self:center;font-size:17px}
  .nav-toggle{display:inline-flex}
  .mobile-panel{display:block}
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;border-radius:0 0 var(--r-lg) var(--r-lg);
  min-height:300px;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center 30%;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(27,18,14,.92) 0%,rgba(27,18,14,.72) 42%,rgba(224,31,79,.42) 100%);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:var(--grad);opacity:.28;filter:blur(20px);
}
.hero-inner{position:relative;z-index:2;padding:52px 0 46px;max-width:820px}
.hero-crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px}
.hero-crumbs a{color:rgba(255,255,255,.86)}
.hero-crumbs a:hover{color:#fff}
.hero-crumbs span.sep{opacity:.5}
.hero h1{color:#fff;font-size:clamp(28px,4.2vw,44px);font-weight:900;line-height:1.2}
.hero-lead{margin-top:16px;color:rgba(255,255,255,.9);font-size:clamp(15px,1.6vw,17px);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-actions .btn-ghost{background:rgba(255,255,255,.94)}

/* ---------- stats strip ---------- */
.stats-strip{margin-top:-38px;position:relative;z-index:5}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--shadow-2);
}
.stat-num{font-size:24px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num em{font-style:normal;font-size:13px;color:var(--brand);font-weight:700;margin-left:4px}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px;display:flex;align-items:center;gap:6px}
.stat-label svg{width:15px;height:15px;stroke:var(--cyan);flex:none}

/* ---------- section base ---------- */
.section{padding-top:56px}
@media (min-width:768px){.section{padding-top:80px}}
@media (min-width:1200px){.section{padding-top:104px}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:800;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--grad);
}
.section-head .sub{margin-top:8px;color:var(--muted);font-size:14px;padding-left:16px}
.section-more{font-size:14px;font-weight:700}

/* ---------- category layout: list + aside ---------- */
.cat-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:start}
.digest-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.digest-item{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:20px;
  padding:22px 24px;border-bottom:1px solid var(--line);
  transition:background .2s ease,box-shadow .2s ease;
}
.digest-item:last-child{border-bottom:0}
.digest-item:hover{background:var(--bg-alt)}
.digest-thumb{
  position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/10;
  background:var(--bg-alt);
}
.digest-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s cubic-bezier(.2,.7,.3,1)}
.digest-item:hover .digest-thumb img{transform:scale(1.04)}
.digest-body{min-width:0}
.digest-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.tag{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;
  font-size:12px;font-weight:700;background:var(--bg-alt);color:var(--brand);border:1px solid var(--line);
}
.tag-cyan{background:rgba(18,199,180,.1);color:#0C8F82;border-color:rgba(18,199,180,.24)}
.tag-lock{background:var(--lime);color:#3B4A0A;border-color:transparent}
.digest-title{font-size:17px;font-weight:700;color:var(--ink);line-height:1.45}
.digest-title a{color:inherit}
.digest-title a:hover{color:var(--brand)}
.digest-desc{
  margin-top:8px;font-size:14px;color:var(--text);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.digest-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:12px;flex-wrap:wrap}
.digest-time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.digest-link{font-size:14px;font-weight:700}

/* aside */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-2);position:sticky;top:96px;
}
.side-card + .side-card{margin-top:22px;position:static}
.side-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.side-head svg{width:20px;height:20px;stroke:var(--brand);flex:none}
.side-head h3{font-size:17px;font-weight:700}
.level-badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12px;font-weight:800;color:#fff;background:var(--grad);margin-bottom:14px;
}
.level-badge svg{width:14px;height:14px;stroke:#fff}
.side-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
.side-stat{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:12px}
.side-stat b{display:block;font-size:20px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.side-stat span{font-size:12px;color:var(--muted)}
.side-list{margin:2px 0 20px}
.side-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;padding:7px 0;border-bottom:1px dashed var(--line)}
.side-list li:last-child{border-bottom:0}
.side-list svg{width:16px;height:16px;stroke:var(--cyan);flex:none;margin-top:5px}
.side-note{margin-top:12px;font-size:12px;color:var(--muted);line-height:1.7;text-align:center}

/* ---------- channel cards ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.channel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:#F6D9C8}
.channel-ico{
  width:46px;height:46px;border-radius:14px;background:var(--bg-alt);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.channel-ico svg{width:22px;height:22px;stroke:var(--brand)}
.channel-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.channel-card p{font-size:14px;line-height:1.75;color:var(--text)}
.channel-status{display:inline-flex;margin-top:14px;font-size:12px;font-weight:700;color:#0C8F82;background:rgba(18,199,180,.1);padding:4px 11px;border-radius:999px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step-card{
  position:relative;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px 24px;
}
.step-num{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;margin-bottom:14px;box-shadow:var(--shadow-2);
}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step-card p{font-size:14px;line-height:1.75}

/* ---------- CTA dark ---------- */
.cta-band{
  margin-top:56px;position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--dark);color:#fff;padding:44px 36px;
}
.cta-band::before{
  content:"";position:absolute;right:-100px;top:-100px;width:380px;height:380px;border-radius:50%;
  background:var(--grad);opacity:.42;filter:blur(10px);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(21px,2.6vw,28px);font-weight:800}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.76);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.55)}
@media (min-width:1200px){.cta-band{margin-top:104px;padding:56px 48px}}
@media (min-width:768px) and (max-width:1199px){.cta-band{margin-top:80px}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#F3D5C3;box-shadow:var(--shadow-2);border-left:4px solid var(--brand)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:17px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:11px;height:11px;flex:none;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text)}

/* ---------- footer ---------- */
.site-footer{margin-top:56px;background:var(--dark);color:rgba(255,255,255,.82);padding:52px 0 26px}
@media (min-width:768px){.site-footer{margin-top:80px}}
@media (min-width:1200px){.site-footer{margin-top:104px}}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:360px}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{color:rgba(255,255,255,.78);font-size:14px}
.footer-col ul li a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.7)}
.footer-contact svg{width:17px;height:17px;stroke:var(--brand);flex:none;margin-top:5px}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom nav a{color:rgba(255,255,255,.6)}
.footer-bottom nav a:hover{color:var(--brand)}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:50;
  width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:none;align-items:center;justify-content:center;box-shadow:var(--shadow-3);
}
.to-top.show{display:inline-flex}
.to-top svg{width:20px;height:20px;stroke:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .cat-layout{grid-template-columns:minmax(0,1fr) 300px;gap:22px}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:1023px){
  .side-card{position:static}
  .cat-layout{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
}
@media (max-width:767px){
  .hero{min-height:0;border-radius:0 0 22px 22px}
  .hero-inner{padding:36px 0 34px}
  .stats-strip{margin-top:-24px}
  .digest-item{grid-template-columns:1fr;padding:18px}
  .digest-thumb{aspect-ratio:16/9}
  .channel-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px;border-radius:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .side-stats{grid-template-columns:1fr 1fr}
}
@media (max-width:480px){
  .stats-grid{grid-template-columns:1fr}
  .brand{font-size:16px}
  .hero-actions .btn{width:100%}
}