/* roulang page: index */
:root{
  --brand-900:#2A1B3D;
  --brand-700:#4B2E6E;
  --brand-500:#6B4A96;
  --brand-100:#EDE7F4;
  --jade-600:#1F6F63;
  --jade-400:#3E9C8B;
  --jade-50:#E9F4F1;
  --sand-500:#C98A3C;
  --sand-300:#E8C48A;
  --bg:#FAF8F5;
  --surface:#FFFFFF;
  --surface-2:#F2EEE9;
  --line:#E3DCD3;
  --text:#211E29;
  --text-2:#5A5566;
  --text-3:#8B8595;
  --ok:#2F8F5B;
  --warn:#C9772E;
  --err:#B8453F;
  --r-s:6px;
  --r-m:10px;
  --r-l:16px;
  --r-xl:22px;
  --sh-1:0 1px 2px rgba(33,30,41,.06);
  --sh-2:0 6px 18px -6px rgba(33,30,41,.14);
  --sh-3:0 18px 40px -18px rgba(42,27,61,.28);
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease,border-color .18s ease}
a:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--brand-900);margin:0}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
h3{font-size:21px;line-height:1.45;font-weight:600;font-family:var(--font-serif)}
h4{font-size:17px;line-height:1.5;font-weight:600;font-family:var(--font-sans)}
p{margin:0 0 1.05em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--sand-300);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-alt{background:var(--surface-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--jade-600);
  font-weight:500;margin-bottom:14px;text-transform:none;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--jade-400);display:block}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:48px}
.section-head p{color:var(--text-2);font-size:15px;max-width:640px;margin:12px 0 0}
.link-more{font-size:15px;font-weight:500;white-space:nowrap;border-bottom:1px solid var(--brand-100);padding-bottom:2px}
.link-more:hover{border-color:var(--sand-500)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,248,245,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(33,30,41,.02);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:var(--brand-900)}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-m);
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;font-family:var(--font-serif);font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-family:var(--font-serif);font-size:17px;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.08em}
.nav-desktop ul{display:flex;align-items:center;gap:6px}
.nav-desktop a,.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:var(--r-m);
  font-size:15px;font-weight:500;color:var(--text-2);
  background:none;border:0;
}
.nav-desktop a:hover,.mega-trigger:hover{background:var(--brand-100);color:var(--brand-900);text-decoration:none}
.nav-desktop a.active{color:var(--brand-900);background:var(--brand-100);font-weight:700}
.mega{position:relative}
.mega-trigger svg{transition:transform .18s ease}
.mega:hover .mega-trigger svg,.mega:focus-within .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 8px);right:0;width:660px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-3);padding:26px;
  display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-family:var(--font-sans);font-size:12px;letter-spacing:.14em;color:var(--text-3);margin-bottom:14px;font-weight:500}
.mega-col ul li{margin-bottom:9px}
.mega-col ul li a{font-size:14px;color:var(--text-2);padding:0;background:none}
.mega-col ul li a:hover{color:var(--brand-700);background:none;text-decoration:underline;text-underline-offset:3px}
.mega-item{display:flex;flex-direction:column;gap:3px;padding-bottom:10px;border-bottom:1px dashed rgba(227,220,211,.9)}
.mega-item:last-child{border-bottom:0;padding-bottom:0}
.mega-item span{font-size:14px;color:var(--text);font-weight:500}
.mega-item em{font-style:normal;font-size:12px;color:var(--text-3)}
.mega-card{display:block;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.mega-card img{height:96px;width:100%;object-fit:cover}
.mega-card-body{padding:12px 14px}
.mega-card-body span{font-size:14px;color:var(--brand-900);font-weight:600;display:block}
.mega-card-body em{font-style:normal;font-size:12px;color:var(--text-3)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);
  background:var(--surface);border-radius:var(--r-m);color:var(--brand-900);
  font-size:18px;line-height:1;align-items:center;justify-content:center;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--r-m);
  border:1px solid transparent;padding:0 20px;height:48px;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-900);color:#fff;box-shadow:var(--sh-2)}
.btn-ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-sand{background:var(--sand-500);color:#2A1B3D;font-weight:700}
.btn-sand:hover{background:var(--sand-300);color:#2A1B3D}
.btn-outline-light{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-block{width:100%}
.btn-m{height:42px;padding:0 16px;font-size:14px}
.btn-s{height:36px;padding:0 12px;font-size:13px}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:
    linear-gradient(110deg,rgba(42,27,61,.94) 0%,rgba(42,27,61,.80) 46%,rgba(75,46,110,.58) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 90px);
  opacity:.6;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding:92px 0 88px}
.hero h1{color:#fff;max-width:15em}
.hero h1 .accent{color:var(--sand-300)}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-note{margin-top:26px;display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:rgba(255,255,255,.7)}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--jade-400);display:inline-block}
.tier-card{
  background:var(--surface);border-radius:var(--r-xl);padding:28px;
  box-shadow:var(--sh-3);color:var(--text);
}
.tier-card-head{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:16px;border-bottom:1px solid var(--line)}
.tier-card-head strong{font-family:var(--font-serif);font-size:18px;color:var(--brand-900)}
.tier-card-head span{font-size:12px;color:var(--text-3);letter-spacing:.08em}
.tier-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px dashed rgba(227,220,211,.9)}
.tier-row:last-of-type{border-bottom:0}
.tier-name{display:flex;align-items:center;gap:10px;font-weight:500;font-size:15px}
.tier-price{font-family:var(--font-serif);font-size:17px;color:var(--sand-500);font-variant-numeric:tabular-nums}
.tier-price em{font-style:normal;font-size:12px;color:var(--text-3);font-family:var(--font-sans)}
.tier-chip{font-size:12px;padding:2px 8px;border-radius:var(--r-s);background:var(--jade-50);color:var(--jade-600);font-weight:500}
.tier-chip.purple{background:var(--brand-100);color:var(--brand-700)}
.tier-chip.sand{background:#FBF1E1;color:var(--warn)}
.tier-card .btn{margin-top:20px}
.tier-card-foot{margin-top:12px;font-size:12px;color:var(--text-3);text-align:center}

/* ---------- Trust bar ---------- */
.trust{border-bottom:1px solid var(--line);background:var(--surface)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:34px 0}
.trust-item{padding:0 26px;border-right:1px solid var(--line)}
.trust-item:last-child{border-right:0}
.trust-item strong{display:block;font-family:var(--font-serif);font-size:26px;color:var(--sand-500);font-variant-numeric:tabular-nums;line-height:1.3}
.trust-item span{font-size:13px;color:var(--text-3)}
.trust-item p{margin:6px 0 0;font-size:14px;color:var(--text-2)}

/* ---------- Compare table ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-l);
  background:var(--surface);box-shadow:var(--sh-1);
}
table.compare{border-collapse:separate;border-spacing:0;width:100%;min-width:760px}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:middle}
table.compare thead th{background:var(--surface-2);font-family:var(--font-serif);font-size:16px;color:var(--brand-900);position:relative}
table.compare thead th:first-child{font-family:var(--font-sans);font-size:14px;color:var(--text-2);font-weight:500}
table.compare thead th .price{display:block;font-size:13px;color:var(--text-3);font-family:var(--font-sans);font-weight:400;margin-top:2px}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover td{background:rgba(242,238,233,.55)}
table.compare td:first-child,table.compare th:first-child{position:sticky;left:0;background:var(--surface);z-index:2;font-weight:500;color:var(--text);box-shadow:1px 0 0 var(--line)}
table.compare thead th:first-child{background:var(--surface-2)}
table.compare .col-recommend{background:#F7F4FA}
table.compare thead th.col-recommend{background:#F1EBF7}
table.compare thead th.col-recommend::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--sand-500)}
.badge-rec{display:inline-block;font-size:11px;padding:2px 7px;border-radius:var(--r-s);background:#FBF1E1;color:var(--warn);margin-left:8px;vertical-align:middle;font-family:var(--font-sans)}
.yes::before{content:"✓";color:var(--jade-600);font-weight:700;margin-right:6px}
.no::before{content:"—";color:var(--text-3);margin-right:6px}
.table-hint{margin-top:14px;font-size:13px;color:var(--text-3);display:none}

/* ---------- Tier ladder ---------- */
.ladder{position:relative;padding-left:0;margin-top:8px}
.ladder-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:36px}
.ladder-item:last-child{padding-bottom:0}
.ladder-rail{position:relative;display:flex;justify-content:center}
.ladder-rail::before{content:"";position:absolute;top:26px;bottom:-36px;width:2px;background:linear-gradient(180deg,var(--line),rgba(227,220,211,.25))}
.ladder-item:last-child .ladder-rail::before{display:none}
.ladder-dot{
  position:relative;z-index:2;width:22px;height:22px;border-radius:50%;
  background:var(--surface);border:2px solid var(--jade-400);
  display:flex;align-items:center;justify-content:center;margin-top:18px;
}
.ladder-dot i{width:8px;height:8px;border-radius:50%;background:var(--jade-400);display:block}
.ladder-item:nth-child(2) .ladder-dot{border-color:var(--brand-500)}
.ladder-item:nth-child(2) .ladder-dot i{background:var(--brand-500)}
.ladder-item:nth-child(3) .ladder-dot{border-color:var(--sand-500)}
.ladder-item:nth-child(3) .ladder-dot i{background:var(--sand-500)}
.tier-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:26px 28px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease;
}
.tier-panel:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.tier-panel-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.tier-panel-desc{font-size:14px;color:var(--text-2);margin:6px 0 16px}
.tier-panel ul{display:grid;gap:10px;margin-bottom:20px}
.tier-panel ul li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2)}
.tier-panel ul li::before{content:"";position:absolute;left:0;top:.72em;width:9px;height:2px;background:var(--jade-400);border-radius:2px}
.tier-panel.mid{background:linear-gradient(180deg,#FBFAFD,#fff)}
.tier-panel.top{border-color:rgba(201,138,60,.35)}

/* ---------- Content preview ---------- */
.grid-mosaic{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:1fr;gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:box-shadow .18s ease,transform .18s ease;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.card-media{position:relative;background:var(--surface-2);overflow:hidden;aspect-ratio:16/9}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;padding:3px 8px;border-radius:var(--r-s);width:fit-content;font-weight:500}
.badge-jade{background:var(--jade-50);color:var(--jade-600)}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-sand{background:#FBF1E1;color:var(--warn)}
.card h3{font-size:19px}
.card p{font-size:14px;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.card-meta svg{flex:0 0 auto}
.card-feature{grid-column:span 2;grid-row:span 2}
.card-feature .card-media{aspect-ratio:auto;flex:1;min-height:240px}
.card-feature h3{font-size:24px}
.card-feature p{-webkit-line-clamp:3;font-size:15px}

/* ---------- News (CMS) ---------- */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  min-height:210px;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(107,74,150,.28)}
.news-card:first-child{grid-column:span 2}
.news-card .news-body{display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:18px;line-height:1.5;margin:0}
.news-card:first-child .news-title{font-size:22px}
.news-title a{color:var(--brand-900)}
.news-title a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.news-excerpt{font-size:14px;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:12px;display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-l);background:var(--surface);
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:var(--text-3);font-size:15px;text-align:center;padding:32px;
}
.empty-state .empty-ico{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--jade-400);font-size:16px}

/* ---------- Proof ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proof{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--jade-400);
  border-radius:var(--r-m);padding:24px;box-shadow:var(--sh-1);
}
.proof p{font-size:15px;color:var(--text-2);margin:0 0 16px}
.proof .who{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.proof .who b{font-family:var(--font-serif);font-size:14px;color:var(--brand-900);font-weight:600}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;flex:0 0 auto}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 2.4fr;gap:48px;align-items:start}
.faq-intro p{font-size:15px;color:var(--text-2);margin-top:16px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);background:transparent;transition:background-color .18s ease}
.faq-item[open]{background:var(--surface-2);box-shadow:inset 3px 0 0 var(--jade-400)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16px;font-weight:600;color:var(--brand-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:8px;height:8px;border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(45deg);flex:0 0 auto;transition:transform .18s 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-2);max-width:70ch}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(100deg,rgba(42,27,61,.96),rgba(75,46,110,.88)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-band::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(255,255,255,.035) 0 2px,transparent 2px 22px)}
.cta-inner{position:relative;z-index:2;padding:76px 0;display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:center}
.cta-inner h2{color:#fff}
.cta-inner p{color:rgba(255,255,255,.78);margin-top:18px;font-size:16px;max-width:40em}
.cta-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-l);padding:28px}
.cta-box .price-line{display:flex;align-items:baseline;gap:8px;margin-bottom:6px}
.cta-box .price-line strong{font-family:var(--font-serif);font-size:32px;color:var(--sand-300);font-variant-numeric:tabular-nums}
.cta-box .price-line span{font-size:13px;color:rgba(255,255,255,.7)}
.cta-box small{display:block;margin-top:14px;font-size:12px;color:rgba(255,255,255,.6);line-height:1.7}
.cta-actions{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:52px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.5)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:20px 0 0;max-width:32em}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-family:var(--font-sans);font-weight:600}
.site-footer ul li{margin-bottom:11px}
.site-footer ul li a{color:rgba(255,255,255,.68);font-size:14px;display:inline-block}
.site-footer ul li a:hover{color:var(--sand-300);text-decoration:none;transform:translateX(2px)}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);display:flex;gap:10px;align-items:flex-start}
.footer-contact li strong{color:rgba(255,255,255,.9);font-weight:500}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--sand-300)}

/* ---------- Mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(33,30,41,.45);opacity:0;visibility:hidden;
  transition:opacity .18s ease,visibility .18s;z-index:90;
}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:var(--surface);z-index:100;
  transform:translateX(102%);transition:transform .2s ease;display:flex;flex-direction:column;box-shadow:var(--sh-3)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-family:var(--font-serif);font-size:16px;color:var(--brand-900)}
.drawer-close{width:36px;height:36px;border-radius:var(--r-m);border:1px solid var(--line);background:var(--surface);color:var(--text-2);font-size:16px}
.drawer-nav{padding:12px 8px 20px;overflow-y:auto;flex:1}
.drawer-nav a{display:block;padding:13px 14px;border-radius:var(--r-m);font-size:15px;color:var(--text-2);font-weight:500}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--brand-100);color:var(--brand-900);text-decoration:none}
.drawer-nav .drawer-sub{padding:0 0 8px;margin-left:8px;border-left:1px solid var(--line)}
.drawer-nav .drawer-sub a{padding:10px 14px 10px 16px;font-size:14px;font-weight:400}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line)}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* ---------- Responsive ---------- */
@media (min-width:1440px){
  .container{padding:0 40px}
}
@media (max-width:1199px){
  .nav-desktop ul{gap:2px}
  .nav-desktop a,.mega-trigger{padding:9px 10px;font-size:14px}
  .mega-panel{width:600px}
}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:72px 0 64px}
  .hero h1{max-width:none}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:0}
  .trust-item{padding:18px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .trust-item:nth-child(2n){border-right:0}
  .trust-item:nth-child(3),.trust-item:nth-child(4){border-bottom:0}
  .table-hint{display:block}
  .grid-mosaic{grid-template-columns:repeat(2,1fr)}
  .card-feature{grid-column:span 2;grid-row:span 1}
  .card-feature .card-media{aspect-ratio:16/9;min-height:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card:first-child{grid-column:span 2}
  .proof-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .header-inner{height:62px}
  .brand-text em{display:none}
  .header-actions .btn{display:none}
  .hero-inner{padding:56px 0 52px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-right:0;border-bottom:1px solid var(--line)}
  .trust-item:last-child{border-bottom:0}
  .ladder-item{grid-template-columns:32px 1fr;gap:14px;padding-bottom:24px}
  .grid-mosaic{grid-template-columns:1fr;gap:18px}
  .card-feature{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .news-card:first-child{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  table.compare th,table.compare td{padding:13px 14px;font-size:14px}
  .tier-panel{padding:20px}
  .cta-inner{padding:48px 0}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  h1{font-size:28px}
  h2{font-size:22px}
  .hero-note{gap:12px;font-size:12px}
  .tier-card{padding:22px}
  .proof{padding:20px}
}

/* roulang page: article */
:root{
  --brand-900:#2A1B3D;
  --brand-700:#4B2E6E;
  --brand-500:#6B4A96;
  --brand-100:#EDE7F4;
  --jade-600:#1F6F63;
  --jade-400:#3E9C8B;
  --jade-50:#E9F4F1;
  --sand-500:#C98A3C;
  --sand-300:#E8C48A;
  --bg:#FAF8F5;
  --surface:#FFFFFF;
  --surface-2:#F2EEE9;
  --line:#E3DCD3;
  --text:#211E29;
  --text-2:#5A5566;
  --text-3:#8B8595;
  --ok:#2F8F5B;
  --r-s:6px;
  --r-m:10px;
  --r-l:16px;
  --r-xl:22px;
  --sh-1:0 1px 2px rgba(33,30,41,.06);
  --sh-2:0 6px 18px -6px rgba(33,30,41,.14);
  --sh-3:0 18px 40px -18px rgba(42,27,61,.28);
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --serif:'Noto Serif SC','Songti SC','SimSun',serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--sand-500);outline-offset:2px;border-radius:var(--r-s)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-m);
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;font-family:var(--serif);font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.04em}
.nav-desktop{margin-left:auto}
.nav-desktop > ul{display:flex;align-items:center;gap:6px}
.nav-desktop > ul > li{position:relative}
.nav-desktop > ul > li > a,
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:var(--r-m);
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:background .16s ease,color .16s ease;
}
.nav-desktop > ul > li > a:hover,
.mega-trigger:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none}
.nav-desktop > ul > li > a.active{color:var(--brand-700);background:var(--brand-100)}
.mega-panel{
  position:absolute;top:calc(100% + 8px);right:0;width:660px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-3);padding:22px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega:hover .mega-panel,
.mega:focus-within .mega-panel,
.mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-panel h4{font-size:13px;color:var(--text-3);font-weight:600;letter-spacing:.06em;margin-bottom:10px}
.mega-panel ul li{margin-bottom:6px}
.mega-panel ul li a{font-size:14px;color:var(--text-2);display:inline-block;transition:color .16s ease,transform .16s ease}
.mega-panel ul li a:hover{color:var(--brand-700);transform:translateX(2px);text-decoration:none}
.mega-item{padding:8px 0;border-bottom:1px dashed rgba(227,220,211,.75)}
.mega-item:last-child{border-bottom:0}
.mega-item span{display:block;font-size:14px;color:var(--text)}
.mega-item em{font-style:normal;font-size:12px;color:var(--text-3)}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;background:var(--surface-2);transition:box-shadow .16s ease,transform .16s ease}
.mega-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);text-decoration:none;color:inherit}
.mega-card img{width:100%;height:96px;object-fit:cover}
.mega-card-body{display:block;padding:10px 12px}
.mega-card-body span{display:block;font-size:14px;font-weight:600;color:var(--text)}
.mega-card-body em{font-style:normal;display:block;font-size:12px;color:var(--text-3)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-m);
  border:1px solid var(--line);background:var(--surface);
  font-size:17px;color:var(--brand-700);
}
.nav-toggle:hover{background:var(--brand-100)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-m);font-weight:600;font-size:15px;
  padding:0 20px;height:48px;border:1px solid transparent;
  transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-s{height:36px;padding:0 12px;font-size:14px}
.btn-m{height:42px;padding:0 16px}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-900);color:#fff}
.btn-ghost{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-sand{background:var(--sand-500);color:#241505}
.btn-sand:hover{background:var(--sand-300);color:#241505}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
  background:var(--surface);border-left:1px solid var(--line);
  box-shadow:var(--sh-3);z-index:90;padding:22px 20px 90px;
  transform:translateX(102%);transition:transform .2s ease;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-head strong{font-family:var(--serif);font-size:16px}
.drawer-close{width:36px;height:36px;border-radius:var(--r-m);border:1px solid var(--line);font-size:16px}
.drawer-nav a{display:block;padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2)}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand-700);background:var(--brand-100);text-decoration:none;border-radius:var(--r-s);padding-left:10px}
.drawer-sub{padding-left:16px}
.drawer-sub a{font-size:14px;color:var(--text-3)}
.drawer-foot{position:fixed;bottom:0;right:0;width:84vw;max-width:360px;padding:14px 20px;background:var(--surface);border-top:1px solid var(--line);z-index:91}
.drawer-foot .btn{width:100%}
.drawer-mask{position:fixed;inset:0;background:rgba(42,27,61,.38);opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s;z-index:80}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(42,27,61,.9),rgba(75,46,110,.66));
}
.article-hero-inner{position:relative;z-index:2;padding:32px 0 56px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72)}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{color:rgba(255,255,255,.45)}
.crumbs .current{color:rgba(255,255,255,.6);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-family:var(--serif);
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.28;font-weight:700;letter-spacing:-.01em;
  margin:22px 0 18px;max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:14px;color:rgba(255,255,255,.78)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta a{color:rgba(255,255,255,.9);border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px}
.article-meta a:hover{color:#fff;border-color:#fff;text-decoration:none}
.article-meta svg{flex:0 0 auto;opacity:.85}

/* ---------- article body ---------- */
.article-main{padding:56px 0 8px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:44px 48px;max-width:820px;
  font-size:17px;line-height:1.9;color:var(--text);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-family:var(--serif);font-size:clamp(21px,2.6vw,27px);line-height:1.35;font-weight:700;
  margin:40px 0 18px;padding-left:14px;border-left:4px solid var(--brand-500);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:30px 0 12px;color:var(--text)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.15em 1.25em}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body li{margin-bottom:.6em}
.article-body li::marker{color:var(--jade-600)}
.article-body blockquote{
  border-left:3px solid var(--jade-400);background:var(--surface-2);
  padding:20px 22px;border-radius:0 var(--r-m) var(--r-m) 0;
  margin:1.4em 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-m);margin:1.5em auto;background:var(--surface-2)}
.article-body figure{margin:1.5em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--surface-2);font-weight:600}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-900)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body code{background:var(--surface-2);border-radius:var(--r-s);padding:2px 6px;font-size:15px}

.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-l);
  padding:64px 32px;text-align:center;color:var(--text-2);max-width:820px;
}
.empty-state .empty-icon{
  width:54px;height:54px;border-radius:var(--r-m);margin:0 auto 16px;
  background:var(--surface-2);display:flex;align-items:center;justify-content:center;
  color:var(--brand-500);
}
.empty-state h2{font-family:var(--serif);font-size:22px;color:var(--text);margin-bottom:10px}
.empty-state p{margin-bottom:20px;font-size:15px;color:var(--text-2)}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:94px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:22px;
}
.side-card h3{font-size:16px;font-weight:600;margin-bottom:14px;font-family:var(--serif)}
.side-list li{padding:10px 0;border-bottom:1px dashed rgba(227,220,211,.85);font-size:14px;line-height:1.65}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{color:var(--text-2);display:block}
.side-list a:hover{color:var(--brand-700);text-decoration:none}
.side-list em{font-style:normal;display:block;font-size:12px;color:var(--text-3);margin-top:3px}
.side-cta{background:var(--brand-900);color:#fff;border-color:transparent}
.side-cta h3{color:#fff}
.side-cta p{font-size:14px;color:rgba(255,255,255,.78);margin-bottom:16px;line-height:1.75}
.side-cta .btn{width:100%}

/* ---------- related ---------- */
.related{padding:64px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-family:var(--serif);font-size:clamp(22px,3vw,30px);line-height:1.3;font-weight:700}
.section-head p{font-size:14px;color:var(--text-3);margin-top:6px}
.section-head a{font-size:14px;font-weight:600;white-space:nowrap}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .18s ease,transform .18s ease;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);text-decoration:none}
.card-cover{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-body h3{color:var(--brand-700)}
.card-body p{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-3)}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;padding:4px 9px;border-radius:var(--r-s);
  background:var(--jade-50);color:var(--jade-600);font-weight:500;
}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-sand{background:#FBF1E2;color:var(--sand-500)}

/* ---------- prev / next ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.pager a{
  display:flex;flex-direction:column;gap:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:20px 22px;box-shadow:var(--sh-1);color:var(--text);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.pager a:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-100);text-decoration:none}
.pager em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.05em}
.pager strong{
  font-size:16px;font-weight:600;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.pager a:hover strong{color:var(--brand-700)}
.pager .next{text-align:right;align-items:flex-end}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:80px;position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-inner{position:relative;z-index:2;padding:56px 0;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-family:var(--serif);font-size:clamp(22px,3vw,30px);line-height:1.35;margin-bottom:10px}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.78);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text em{color:rgba(255,255,255,.55)}
.site-footer .brand-mark{background:linear-gradient(140deg,var(--brand-500),var(--jade-600))}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:340px}
.site-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.site-footer ul li{margin-bottom:10px}
.site-footer ul li a{color:rgba(255,255,255,.75);font-size:14px;display:inline-block;transition:color .16s ease,transform .16s ease}
.site-footer ul li a:hover{color:#fff;transform:translateX(-2px);text-decoration:none}
.footer-contact li{font-size:14px;display:flex;gap:6px;line-height:1.7}
.footer-contact strong{color:rgba(255,255,255,.92);font-weight:500}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 272px;gap:32px}
  .article-body{padding:36px 32px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-actions{margin-left:auto}
  .article-layout{grid-template-columns:1fr}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side > *{flex:1 1 280px}
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .article-hero-inner{padding:24px 0 40px}
  .article-hero h1{margin:16px 0 14px}
  .article-meta{gap:12px;font-size:13px}
  .crumbs .current{max-width:220px}
  .article-main{padding:36px 0 0}
  .article-body{padding:26px 20px;font-size:16px;border-radius:var(--r-m)}
  .article-body h2{margin-top:30px}
  .cards-3{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left;align-items:flex-start}
  .related{padding-top:48px}
  .cta-band{margin-top:56px}
  .cta-inner{padding:44px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .header-actions .btn{display:none}
}
@media (max-width:520px){
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .empty-state{padding:44px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand-900:#2A1B3D;
  --brand-700:#4B2E6E;
  --brand-500:#6B4A96;
  --brand-100:#EDE7F4;
  --jade-600:#1F6F63;
  --jade-400:#3E9C8B;
  --jade-50:#E9F4F1;
  --sand-500:#C98A3C;
  --sand-300:#E8C48A;
  --bg:#FAF8F5;
  --surface:#FFFFFF;
  --surface-2:#F2EEE9;
  --line:#E3DCD3;
  --text:#211E29;
  --text-2:#5A5566;
  --text-3:#8B8595;
  --ok:#2F8F5B;
  --warn:#C9772E;
  --err:#B8453F;
  --r-s:6px;
  --r-m:10px;
  --r-l:16px;
  --r-xl:22px;
  --sh-1:0 1px 2px rgba(33,30,41,.06);
  --sh-2:0 6px 18px -6px rgba(33,30,41,.14);
  --sh-3:0 18px 40px -18px rgba(42,27,61,.28);
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}

img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease;}
a:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--text);font-weight:700;}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.25;letter-spacing:-.01em;}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.05em;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--sand-500);outline-offset:2px;border-radius:var(--r-s);}
::selection{background:var(--brand-100);color:var(--brand-900);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(33,30,41,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:70px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  flex-shrink:0;
}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-m);
  background:linear-gradient(150deg,var(--brand-700),var(--brand-900));
  color:#fff;
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  box-shadow:var(--sh-2);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{
  font-family:var(--serif);
  font-size:16px;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:.01em;
}
.brand-text em{
  font-style:normal;
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.04em;
}

.nav-desktop{flex:1;}
.nav-desktop > ul{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-desktop > ul > li{position:relative;}
.nav-desktop > ul > li > a,
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 14px;
  border-radius:var(--r-m);
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  background:transparent;
  border:1px solid transparent;
  text-decoration:none;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.nav-desktop > ul > li > a:hover,
.mega-trigger:hover{
  color:var(--brand-700);
  background:var(--brand-100);
  text-decoration:none;
}
.nav-desktop > ul > li > a.active{
  color:var(--brand-900);
  background:var(--brand-100);
  border-color:#DFD5EE;
  font-weight:700;
}

.mega-panel{
  position:absolute;
  top:calc(100% + 8px);
  right:0;
  width:660px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-3);
  padding:24px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega:hover .mega-panel,
.mega:focus-within .mega-panel,
.mega.is-open .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-col h4{
  font-family:var(--sans);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--text-3);
  margin-bottom:12px;
}
.mega-col ul li a{
  display:block;
  padding:7px 0;
  font-size:14px;
  color:var(--text-2);
}
.mega-col ul li a:hover{color:var(--brand-700);text-decoration:none;}
.mega-item{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:9px 0;
  border-bottom:1px dashed rgba(227,220,211,.9);
  font-size:14px;
  color:var(--text-2);
}
.mega-item:last-child{border-bottom:0;}
.mega-item em{
  font-style:normal;
  font-size:12px;
  color:var(--text-3);
}
.mega-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  background:var(--surface-2);
  text-decoration:none;
  transition:box-shadow .18s ease,transform .18s ease;
}
.mega-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);text-decoration:none;}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface-2);}
.mega-card-body{display:block;padding:12px 14px;}
.mega-card-body span{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:2px;
}
.mega-card-body em{
  font-style:normal;
  font-size:12px;
  color:var(--text-3);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background:var(--surface);
  color:var(--brand-900);
  font-size:17px;
  line-height:1;
  transition:background-color .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:var(--brand-100);border-color:#DFD5EE;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-m);
  font-weight:600;
  font-size:15px;
  line-height:1;
  padding:0 20px;
  height:42px;
  border:1px solid transparent;
  text-decoration:none;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none;}
.btn:active{transform:translateY(0);}
.btn-s{height:36px;padding:0 14px;font-size:14px;}
.btn-l{height:48px;padding:0 24px;font-size:16px;}

.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:disabled{background:var(--text-3);opacity:.6;cursor:not-allowed;transform:none;}

.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900);border-color:var(--brand-900);}

.btn-sand{background:var(--sand-500);color:#2A1B3D;box-shadow:var(--sh-2);}
.btn-sand:hover{background:var(--sand-300);color:#2A1B3D;transform:translateY(-1px);}

.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- Tags / badges ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  padding:4px 9px;
  border-radius:var(--r-s);
  line-height:1.5;
  letter-spacing:.02em;
}
.tag-cat{background:var(--jade-50);color:var(--jade-600);}
.tag-tier{background:var(--brand-100);color:var(--brand-700);}
.tag-lock{background:#FBF2E4;color:#8A5A18;}
.tag-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28);}

/* ---------- Category hero ---------- */
.cat-hero{
  position:relative;
  min-height:360px;
  padding:64px 0 56px;
  background-image:linear-gradient(115deg,rgba(42,27,61,.88) 0%,rgba(42,27,61,.66) 52%,rgba(31,111,99,.55) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.86);text-decoration:none;}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{color:rgba(255,255,255,.4);}
.breadcrumb .current{color:rgba(255,255,255,.6);}

.cat-hero h1{
  color:#fff;
  max-width:820px;
  margin:14px 0 16px;
}
.hero-lead{
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:36px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:20px;
  max-width:720px;
}
.hero-facts li{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding-right:40px;
  margin-right:40px;
  border-right:1px solid rgba(255,255,255,.16);
}
.hero-facts li:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-facts strong{
  font-family:var(--serif);
  font-size:26px;
  color:var(--sand-300);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-facts span{font-size:13px;color:rgba(255,255,255,.74);}

/* ---------- Category layout ---------- */
.cat-body{padding:72px 0 88px;}
.cat-layout{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:22px 20px;
  box-shadow:var(--sh-1);
}
.anchor-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--text-3);
  margin-bottom:14px;
}
.anchor-nav ul li a{
  display:block;
  position:relative;
  padding:9px 10px 9px 16px;
  font-size:14px;
  color:var(--text-2);
  border-radius:var(--r-s);
  border-left:2px solid transparent;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease,padding-left .18s ease;
}
.anchor-nav ul li a:hover{
  color:var(--brand-700);
  background:var(--surface-2);
  text-decoration:none;
  padding-left:18px;
}
.anchor-nav ul li a.is-active{
  color:var(--brand-900);
  font-weight:700;
  background:var(--brand-100);
  border-left-color:var(--brand-500);
}
.anchor-cta{width:100%;margin-top:18px;}

.cat-content{min-width:0;}
.block{
  scroll-margin-top:96px;
  padding-bottom:52px;
  margin-bottom:52px;
  border-bottom:1px solid var(--line);
}
.block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.block-head{margin-bottom:24px;max-width:780px;}
.block-head h2{
  position:relative;
  padding-left:16px;
  margin-bottom:12px;
}
.block-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:4px;height:1em;
  border-radius:2px;
  background:var(--brand-500);
}
.block-head p{
  color:var(--text-2);
  font-size:15.5px;
  margin-bottom:0;
}

.prose p{color:var(--text-2);font-size:16px;}
.prose strong{color:var(--text);}

/* ---------- Overview cards ---------- */
.overview-figure{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  margin:0 0 28px;
  background:var(--surface-2);
  box-shadow:var(--sh-1);
}
.overview-figure img{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
  background:var(--surface-2);
}
.overview-figure figcaption{
  padding:12px 18px;
  font-size:13px;
  color:var(--text-3);
  background:var(--surface);
  border-top:1px solid var(--line);
}

.tier-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.tier-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:24px 22px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.tier-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D8CEE8;}
.tier-card::before{
  content:"";
  position:absolute;
  left:22px;right:22px;top:0;
  height:3px;
  border-radius:0 0 3px 3px;
  background:var(--jade-400);
}
.tier-card.t-2::before{background:var(--brand-500);}
.tier-card.t-3::before{background:var(--sand-500);}
.tier-card.t-4::before{background:var(--brand-900);}
.tier-card h3{margin:10px 0 8px;}
.tier-card > p{font-size:14.5px;color:var(--text-2);margin-bottom:14px;}
.tier-card ul li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--text-2);
  margin-bottom:8px;
  line-height:1.75;
}
.tier-card ul li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--jade-50);
  border:1.5px solid var(--jade-400);
}
.tier-card .tier-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:14px;
  font-weight:600;
}

/* ---------- Numbered list ---------- */
.num-list{counter-reset:num;display:grid;gap:0;}
.num-list li{
  display:grid;
  grid-template-columns:70px minmax(0,1fr);
  gap:20px;
  padding:22px 0;
  border-bottom:1px dashed rgba(227,220,211,.9);
}
.num-list li:last-child{border-bottom:0;padding-bottom:0;}
.num-list li::before{
  counter-increment:num;
  content:counter(num,decimal-leading-zero);
  font-family:var(--serif);
  font-size:30px;
  font-weight:700;
  color:var(--sand-500);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.num-list h3{font-size:17px;font-family:var(--sans);font-weight:700;margin-bottom:6px;color:var(--text);}
.num-list p{font-size:14.5px;color:var(--text-2);margin-bottom:0;line-height:1.8;}

/* ---------- Mini compare table ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:var(--surface);
  box-shadow:var(--sh-1);
  -webkit-overflow-scrolling:touch;
}
table.cmp{
  min-width:660px;
  font-size:14.5px;
}
table.cmp th,
table.cmp td{
  padding:15px 18px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
table.cmp thead th{
  font-family:var(--sans);
  font-size:14px;
  font-weight:700;
  color:var(--text);
  background:var(--surface-2);
  white-space:nowrap;
}
table.cmp tbody tr:hover{background:#FCFAF7;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp th:first-child,
table.cmp td:first-child{
  position:sticky;
  left:0;
  background:var(--surface);
  font-weight:600;
  color:var(--text);
  min-width:190px;
  z-index:2;
  box-shadow:1px 0 0 var(--line);
}
table.cmp thead th:first-child{background:var(--surface-2);}
table.cmp td:not(:first-child){color:var(--text-2);white-space:nowrap;}
.yes{color:var(--jade-600);font-weight:700;}
.no{color:var(--text-3);}
.table-note{font-size:13px;color:var(--text-3);margin-top:12px;}

/* ---------- Process steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  position:relative;
}
.steps::before{
  content:"";
  position:absolute;
  top:22px;left:6%;right:6%;
  height:2px;
  background:linear-gradient(90deg,var(--jade-400),var(--brand-500),var(--brand-900),var(--sand-500));
  opacity:.28;
}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:24px 20px 22px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.step:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.step-num{
  display:flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:50%;
  background:var(--brand-100);
  border:2px solid var(--surface);
  color:var(--brand-700);
  font-family:var(--serif);
  font-weight:700;
  font-size:16px;
  margin-bottom:14px;
  box-shadow:var(--sh-1);
}
.step h3{font-family:var(--sans);font-size:16px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);margin-bottom:0;line-height:1.75;}

/* ---------- Pitfalls ---------- */
.pitfalls{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.pitfall{
  display:flex;
  gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--sand-500);
  border-radius:var(--r-m);
  padding:18px 20px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.pitfall:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.pitfall .pf-icon{
  flex:0 0 26px;
  width:26px;height:26px;
  border-radius:50%;
  background:#FBF2E4;
  color:var(--warn);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  font-weight:700;
  font-family:var(--serif);
}
.pitfall h3{font-family:var(--sans);font-size:15.5px;font-weight:700;margin-bottom:6px;}
.pitfall p{font-size:14px;color:var(--text-2);margin-bottom:0;line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2.1fr);
  gap:40px;
  align-items:start;
}
.faq-intro h2{position:relative;padding-left:16px;margin-bottom:12px;}
.faq-intro h2::before{
  content:"";
  position:absolute;left:0;top:.18em;
  width:4px;height:1em;border-radius:2px;background:var(--brand-500);
}
.faq-intro p{font-size:14.5px;color:var(--text-2);}
.faq-list{
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:var(--surface);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-list details{border-bottom:1px solid var(--line);}
.faq-list details:last-child{border-bottom:0;}
.faq-list summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:15.5px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  border-left:3px solid transparent;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary:hover{background:var(--surface-2);color:var(--brand-700);}
.faq-list summary .chev{
  flex:0 0 auto;
  width:18px;height:18px;
  color:var(--jade-600);
  transition:transform .18s ease;
}
.faq-list details[open] summary{
  background:var(--surface-2);
  border-left-color:var(--jade-400);
  color:var(--brand-900);
}
.faq-list details[open] summary .chev{transform:rotate(90deg);}
.faq-answer{
  padding:0 22px 20px 25px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  background-color:var(--brand-900);
  background-image:linear-gradient(120deg,rgba(42,27,61,.94),rgba(75,46,110,.86)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:64px 0;
  scroll-margin-top:80px;
}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;margin-bottom:0;max-width:640px;}
.cta-side{
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:flex-start;
}
.cta-price{
  font-family:var(--serif);
  font-size:15px;
  color:var(--sand-300);
  font-variant-numeric:tabular-nums;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-fine{
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-top:6px;
}

/* ---------- Footer ---------- */
.site-footer{
  background:#1D1429;
  color:rgba(255,255,255,.78);
  padding:60px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.55);}
.footer-brand .brand-mark{background:linear-gradient(150deg,var(--brand-500),var(--brand-900));}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.64);
  margin-bottom:0;
}
.site-footer h4{
  font-family:var(--sans);
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  color:#fff;
  margin-bottom:16px;
}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  text-decoration:none;
  display:inline-block;
  transition:color .18s ease,transform .18s ease;
}
.site-footer ul li a:hover{
  color:#fff;
  text-decoration:none;
  transform:translateX(-2px);
}
.footer-contact li{
  font-size:14px;
  color:rgba(255,255,255,.7);
  line-height:1.7;
}
.footer-contact strong{color:rgba(255,255,255,.9);font-weight:600;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- Drawer ---------- */
.nav-drawer{
  position:fixed;
  top:0;right:0;
  width:84vw;
  max-width:360px;
  height:100%;
  background:var(--surface);
  z-index:120;
  transform:translateX(102%);
  transition:transform .22s ease;
  display:flex;
  flex-direction:column;
  box-shadow:var(--sh-3);
  padding:20px 20px 24px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:16px;
}
.drawer-head span{
  font-family:var(--serif);
  font-size:17px;
  font-weight:700;
  color:var(--brand-900);
}
.drawer-close{
  width:36px;height:36px;
  border-radius:var(--r-m);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-2);
  font-size:15px;
  line-height:1;
}
.drawer-close:hover{background:var(--surface-2);color:var(--brand-900);}
.drawer-nav li{border-bottom:1px solid var(--line);}
.drawer-nav li a{
  display:block;
  padding:14px 4px;
  font-size:15px;
  color:var(--text-2);
  text-decoration:none;
}
.drawer-nav li a:hover{color:var(--brand-700);text-decoration:none;}
.drawer-nav li a.active{color:var(--brand-900);font-weight:700;}
.drawer-cta{width:100%;margin-top:auto;}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(33,30,41,.46);
  z-index:110;
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- Responsive ---------- */
@media (min-width:1440px){
  .container{padding:0 40px;}
}
@media (max-width:1199px){
  .cat-layout{grid-template-columns:210px minmax(0,1fr);gap:40px;}
  .mega-panel{width:600px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-desktop{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-body{padding:56px 0 64px;}
  .cat-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .anchor-nav{
    position:static;
    margin-bottom:36px;
    padding:18px;
  }
  .anchor-nav ul{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-nav ul li a{border-left:0;border:1px solid var(--line);border-radius:var(--r-s);padding:7px 12px;font-size:13px;}
  .anchor-nav ul li a.is-active{border-color:var(--brand-500);}
  .anchor-cta{margin-top:16px;width:auto;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps::before{display:none;}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:24px;}
}
@media (max-width:900px){
  .tier-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:26px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .site-header{position:sticky;}
  .brand-text em{display:none;}
  .btn-primary.btn-s{display:none;}
  .cat-hero{padding:40px 0 38px;min-height:0;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .hero-facts li{border-right:0;padding-right:0;margin-right:0;}
  .block{padding-bottom:36px;margin-bottom:36px;}
  .num-list li{grid-template-columns:52px minmax(0,1fr);gap:14px;}
  .num-list li::before{font-size:24px;}
  .pitfalls{grid-template-columns:minmax(0,1fr);}
  .steps{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:48px 0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .table-wrap{border-radius:var(--r-m);}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .tier-card{padding:20px 16px;}
  .faq-list summary{padding:15px 16px;font-size:15px;}
  .faq-answer{padding:0 16px 18px 19px;}
  .brand-mark{width:36px;height:36px;font-size:18px;}
  .brand-text strong{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --brand-900:#2A1B3D;--brand-700:#4B2E6E;--brand-500:#6B4A96;--brand-100:#EDE7F4;
  --jade-600:#1F6F63;--jade-400:#3E9C8B;--jade-50:#E9F4F1;
  --sand-500:#C98A3C;--sand-300:#E8C48A;--sand-50:#FBF1E2;
  --bg:#FAF8F5;--surface:#FFFFFF;--surface-2:#F2EEE9;--line:#E3DCD3;
  --text:#211E29;--text-2:#5A5566;--text-3:#8B8595;
  --ok:#2F8F5B;--warn:#C9772E;--err:#B8453F;
  --r-s:6px;--r-m:10px;--r-l:16px;--r-xl:22px;
  --sh-1:0 1px 2px rgba(33,30,41,.06);
  --sh-2:0 6px 18px -6px rgba(33,30,41,.14);
  --sh-3:0 18px 40px -18px rgba(42,27,61,.28);
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
}

*,*::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:var(--font-sans);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text)}
p{margin:0}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--sand-500);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 20px;border-radius:var(--r-m);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.btn-primary:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900);border-color:var(--brand-900)}
.btn-sand{background:var(--sand-500);color:#2A1B3D;border-color:var(--sand-500)}
.btn-sand:hover{background:var(--sand-300);border-color:var(--sand-300);color:#2A1B3D}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.btn-s{height:36px;padding:0 14px;font-size:14px;border-radius:8px}
.btn-l{height:52px;padding:0 26px;font-size:16px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(33,30,41,.04);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand-700),var(--brand-900));
  color:#fff;font-family:var(--font-serif);font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--brand-900);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3)}

.nav-desktop{margin-left:auto}
.nav-desktop > ul{display:flex;align-items:center;gap:2px}
.nav-desktop > ul > li{position:relative}
.nav-desktop a,.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:9px;
  font-size:15px;font-weight:500;color:var(--text-2);
  background:transparent;border:0;cursor:pointer;line-height:1.4;
  transition:background-color .18s ease,color .18s ease;
}
.nav-desktop a:hover,.mega-trigger:hover{background:var(--surface-2);color:var(--brand-700);text-decoration:none}
.nav-desktop a.active{background:var(--brand-100);color:var(--brand-900);font-weight:700}

.mega-panel{
  position:absolute;top:calc(100% + 8px);right:0;width:660px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-3);padding:24px;
  display:grid;grid-template-columns:1fr 1.1fr 1.2fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .15s ease,transform .15s ease,visibility .15s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-3);margin-bottom:12px}
.mega-col ul li{margin-bottom:4px}
.mega-col ul li a{padding:6px 8px;font-size:14px;display:block;border-radius:8px}
.mega-item{padding:7px 0;border-bottom:1px dashed rgba(227,220,211,.7);display:flex;flex-direction:column}
.mega-item:last-child{border-bottom:0}
.mega-item span{font-size:14px;color:var(--text);font-weight:500}
.mega-item em{font-style:normal;font-size:12px;color:var(--text-3)}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;background:var(--surface);box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.mega-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);text-decoration:none}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface-2)}
.mega-card-body{display:block;padding:12px 14px 14px}
.mega-card-body span{display:block;font-size:14px;font-weight:600;color:var(--text)}
.mega-card-body em{font-style:normal;display:block;font-size:12px;color:var(--text-3);margin-top:2px}

.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-m);
  border:1px solid var(--line);background:var(--surface);color:var(--brand-900);
  font-size:18px;line-height:1;cursor:pointer;
}
.nav-toggle:hover{background:var(--surface-2)}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(33,30,41,.42);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s;z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;
  background:var(--surface);border-left:1px solid var(--line);z-index:100;
  transform:translateX(100%);transition:transform .22s ease;
  display:flex;flex-direction:column;padding:20px;
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;border-radius:var(--r-m);border:1px solid var(--line);background:var(--surface);font-size:18px;cursor:pointer;color:var(--text-2)}
.drawer-list{margin-top:10px;flex:1;overflow-y:auto}
.drawer-list li a{
  display:block;padding:14px 4px;font-size:16px;font-weight:500;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-list li a.active{color:var(--brand-900);font-weight:700}
.drawer-foot{padding-top:16px}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--brand-900);
  background-image:linear-gradient(118deg,rgba(42,27,61,.88) 0%,rgba(75,46,110,.72) 62%,rgba(42,27,61,.82) 100%),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:52px 0 60px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 88% 12%,rgba(232,196,138,.16),transparent 62%);
}
.hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.hero-eyebrow{
  display:inline-block;margin-bottom:16px;padding:5px 12px;border-radius:var(--r-s);
  background:rgba(233,244,241,.14);border:1px solid rgba(62,156,139,.5);
  color:#BFE4DB;font-size:13px;letter-spacing:.06em;
}
.page-hero h1{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(30px,4.6vw,46px);line-height:1.25;letter-spacing:-.01em;color:#fff;
  max-width:820px;
}
.hero-lead{
  margin-top:18px;max-width:760px;font-size:16.5px;line-height:1.85;
  color:rgba(255,255,255,.85);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:38px;margin-top:38px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-meta li{display:flex;flex-direction:column;gap:2px}
.hero-meta strong{
  font-family:var(--font-serif);font-size:24px;font-weight:700;color:var(--sand-300);
  font-variant-numeric:tabular-nums;
}
.hero-meta span{font-size:13px;color:rgba(255,255,255,.72)}

/* ---------- 区块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand-500);
  margin-bottom:12px;
}
.section-head h2{
  font-family:var(--font-serif);font-size:clamp(24px,3.2vw,34px);
  line-height:1.3;font-weight:700;margin-bottom:14px;
}
.section-sub{color:var(--text-2);font-size:16px}

/* ---------- 流程轨 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding:52px 22px 0 0}
.step::before{
  content:"";position:absolute;top:15px;left:0;right:-24px;height:2px;
  background:var(--line);
}
.step:last-child::before{display:none}
.step-dot{
  position:absolute;top:0;left:0;width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:2px solid var(--line);
  color:var(--text-3);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step.active .step-dot{
  background:var(--brand-700);border-color:var(--brand-700);color:#fff;
  box-shadow:0 0 0 6px var(--brand-100);
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step p{font-size:14.5px;line-height:1.8;color:var(--text-2)}

/* ---------- 卡片矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.c-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.c-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.c-card .thumb{background:var(--surface-2);overflow:hidden;aspect-ratio:16/9}
.c-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.c-card:hover .thumb img{transform:scale(1.03)}
.c-card .c-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px}
.c-card h3{font-size:20px;font-weight:700;line-height:1.45}
.c-card p{font-size:15px;line-height:1.8;color:var(--text-2)}
.c-card.tall{grid-row:span 2}
.c-card.tall .thumb{aspect-ratio:auto;flex:1;min-height:250px}
.c-card.wide{grid-column:1 / -1;flex-direction:row;align-items:stretch}
.c-card.wide .thumb{width:46%;aspect-ratio:auto;flex:0 0 46%}
.c-card.wide .c-body{justify-content:center;padding:30px 34px}
.c-card.wide h3{font-size:22px}

.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;font-weight:600;line-height:1.6;padding:4px 9px;border-radius:var(--r-s);
}
.badge-jade{background:var(--jade-50);color:var(--jade-600)}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-sand{background:var(--sand-50);color:#8A5A18}

.mini-list{margin-top:4px;display:flex;flex-direction:column;gap:6px}
.mini-list li{position:relative;padding-left:16px;font-size:14px;color:var(--text-3)}
.mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--jade-400);
}
.text-link{font-size:15px;font-weight:600;color:var(--brand-700);margin-top:6px;align-self:flex-start}
.text-link:hover{color:var(--brand-900)}

/* ---------- 双栏对照 ---------- */
.dual{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.dual-col{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:30px 30px 34px;box-shadow:var(--sh-1);
}
.dual-col.jade{border-top:3px solid var(--jade-400)}
.dual-col.sand{border-top:3px solid var(--sand-500)}
.dual-col h3{font-size:20px;margin-bottom:6px}
.dual-col .col-note{font-size:14px;color:var(--text-3);margin-bottom:20px}
.tick-list li{
  position:relative;padding:13px 0 13px 30px;font-size:15px;color:var(--text-2);
  border-bottom:1px dashed rgba(227,220,211,.8);
}
.tick-list li:last-child{border-bottom:0}
.tick-list li::before{
  content:"✓";position:absolute;left:0;top:12px;
  width:18px;height:18px;border-radius:50%;background:var(--jade-50);color:var(--jade-600);
  font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.note-list li{
  position:relative;padding:13px 0 13px 30px;font-size:15px;color:var(--text-2);
  border-bottom:1px dashed rgba(227,220,211,.8);
}
.note-list li:last-child{border-bottom:0}
.note-list li::before{
  content:"!";position:absolute;left:0;top:12px;
  width:18px;height:18px;border-radius:50%;background:var(--sand-50);color:var(--warn);
  font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 2.4fr;gap:56px;align-items:start}
.faq-aside h2{
  font-family:var(--font-serif);font-size:clamp(22px,2.6vw,28px);line-height:1.35;margin-bottom:12px;
}
.faq-aside p{font-size:15px;color:var(--text-2);margin-bottom:22px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  margin-bottom:12px;overflow:hidden;
  transition:background-color .18s ease,border-color .18s ease;
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"›";font-size:22px;line-height:1;color:var(--brand-700);
  transform:rotate(90deg);transition:transform .18s ease;
}
.faq-item[open]{background:var(--surface-2);border-left:3px solid var(--jade-400)}
.faq-item[open] summary::after{transform:rotate(-90deg)}
.faq-item .answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--brand-900);
  background-image:linear-gradient(100deg,rgba(42,27,61,.94) 0%,rgba(42,27,61,.78) 55%,rgba(75,46,110,.72) 100%),
                   url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:64px 0;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-copy{max-width:640px}
.cta-copy h2{
  font-family:var(--font-serif);font-size:clamp(22px,2.8vw,30px);color:#fff;line-height:1.35;margin-bottom:12px;
}
.cta-copy p{font-size:15.5px;color:rgba(255,255,255,.82)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-note{margin-top:22px;font-size:13px;color:rgba(255,255,255,.6);position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62)}
.site-footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.site-footer ul li{margin-bottom:10px}
.site-footer a{color:rgba(255,255,255,.7);font-size:14px;transition:color .18s ease,transform .18s ease;display:inline-block}
.site-footer a:hover{color:#fff;text-decoration:none;transform:translateX(2px)}
.footer-contact li{font-size:14px;display:flex;gap:6px;color:rgba(255,255,255,.6)}
.footer-contact strong{color:rgba(255,255,255,.85);font-weight:600;white-space:nowrap}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .mega-panel{width:600px;grid-template-columns:1fr 1fr;gap:20px}
  .mega-panel .mega-col:last-child{display:none}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .section-head{margin-bottom:36px}
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-actions .btn{display:none}
  .steps{grid-template-columns:1fr 1fr;gap:28px 24px}
  .step:nth-child(2)::before{display:none}
  .matrix{grid-template-columns:1fr}
  .c-card.tall{grid-row:auto}
  .c-card.tall .thumb{aspect-ratio:16/9;flex:none;min-height:0}
  .c-card.wide{flex-direction:column}
  .c-card.wide .thumb{width:100%;flex:none;aspect-ratio:16/9}
  .c-card.wide .c-body{padding:22px 24px 26px}
  .dual{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .header-inner{min-height:64px;gap:12px}
  .brand-text em{display:none}
  .page-hero{padding:36px 0 44px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:22px}
  .hero-meta strong{font-size:20px}
  .steps{grid-template-columns:1fr;gap:26px}
  .step{padding:48px 0 0}
  .step::before{display:none}
  .dual-col{padding:24px 20px 26px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}