/* roulang page: index */
:root{
  --primary:#5A2DFF;
  --primary-dark:#3F17D6;
  --accent:#C9F227;
  --danger-tone:#FF4D2E;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#101014;
  --text:#1B1B20;
  --muted:#6E6A63;
  --hair:#E4E0D8;
  --hair-dark:rgba(255,255,255,.12);
  --lilac:#F0ECFF;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-lg:16px;
  --shadow-1:0 1px 2px rgba(16,16,20,.04);
  --shadow-2:0 12px 32px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:248px;
}
@media (max-width:1399.98px){:root{--sidebar-w:220px}}
@media (max-width:1199.98px){:root{--sidebar-w:200px}}

*,*::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","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),background-size .2s var(--ease)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--lilac);color:var(--primary-dark)}

/* ---------- 容器 ---------- */
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,56px)}

/* ---------- 左侧 App Shell ---------- */
.app-sidebar{
  display:none;
  position:fixed;top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--surface);
  border-right:1px solid var(--hair);
  flex-direction:column;
  z-index:1040;
}
.sidebar-logo{
  height:88px;flex:0 0 88px;
  display:flex;align-items:center;gap:12px;
  padding:0 24px;
  border-bottom:1px solid var(--hair);
}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--ink);color:var(--accent);
  display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:-.02em;
  flex:0 0 38px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.logo-text .l1{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.logo-text .l2{font-size:11px;font-weight:300;letter-spacing:.18em;color:var(--muted)}
.sidebar-scroll{flex:1 1 auto;overflow-y:auto;padding:16px 12px 8px}
.sidebar-scroll::-webkit-scrollbar{width:6px}
.sidebar-scroll::-webkit-scrollbar-thumb{background:var(--hair);border-radius:999px}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;
  border-radius:10px;
  color:var(--muted);font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link i{font-size:18px;line-height:1;color:inherit}
.side-link:hover{background:#F7F6F2;color:var(--text)}
.side-link.is-active{background:var(--lilac);color:var(--primary);font-weight:600}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--primary);
}
.side-sep{height:1px;background:var(--hair);margin:16px 12px}
.side-mini-title{
  font-size:12px;letter-spacing:.12em;color:var(--muted);
  padding:0 12px 8px;font-weight:500;
}
.mini-item{
  display:block;padding:10px 12px;border-radius:10px;
  color:var(--text);font-size:14px;line-height:1.5;
}
.mini-item span{
  display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.mini-item em{
  display:block;font-style:normal;font-size:12px;color:var(--muted);margin-top:2px;
}
.mini-item:hover{background:#F7F6F2;color:var(--primary)}
.side-empty{padding:10px 12px;font-size:13px;color:var(--muted)}
.sidebar-foot{flex:0 0 auto;padding:16px 12px 20px;border-top:1px solid var(--hair)}
.btn-side{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;height:44px;border-radius:999px;
  background:var(--accent);color:var(--ink);
  font-weight:700;font-size:14px;
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.btn-side:hover{background:#D6F95C;color:var(--ink);transform:translateY(-2px)}

/* ---------- 移动端顶栏 ---------- */
.app-topbar{
  position:sticky;top:0;z-index:1030;
  height:56px;display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--surface);border-bottom:1px solid var(--hair);
}
.topbar-logo{display:flex;align-items:center;gap:10px;color:var(--text)}
.topbar-logo .logo-mark{width:32px;height:32px;flex:0 0 32px;font-size:12px;border-radius:8px}
.topbar-logo .t1{font-size:15px;font-weight:700}
.topbar-logo .t2{font-size:10px;font-weight:300;letter-spacing:.16em;color:var(--muted);display:block}
.hamburger{
  width:44px;height:44px;border-radius:10px;
  display:grid;place-items:center;font-size:22px;color:var(--text);
  transition:background .2s var(--ease);
}
.hamburger:hover{background:#F7F6F2}

/* ---------- 主内容区 ---------- */
.app-main{min-height:100vh}
@media (min-width:1024px){
  .app-sidebar{display:flex}
  .app-topbar{display:none}
  .app-main{margin-left:var(--sidebar-w)}
}
.offcanvas{width:min(82vw,320px)!important;border-right:1px solid var(--hair)}
.offcanvas-backdrop.show{opacity:1;background:rgba(16,16,20,.45)}
.offcanvas-body{display:flex;flex-direction:column;padding:0!important}

/* ---------- 通用区块 ---------- */
.section{padding:clamp(56px,7vw,110px) 0}
.section--tight{padding:clamp(48px,5vw,80px) 0}
.section--ink{background:var(--ink);color:#fff}
.section--lilac{background:var(--lilac)}
.sec-head{
  display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;
  margin-bottom:clamp(28px,4vw,48px);
}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:.14em;font-weight:600;
  color:var(--primary);background:var(--lilac);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section--ink .sec-tag{background:var(--accent);color:var(--ink)}
.sec-head h2{
  font-size:clamp(24px,2.8vw,36px);line-height:1.25;font-weight:700;
  letter-spacing:-.01em;
}
.sec-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);max-width:640px}
.section--ink .sec-desc{color:rgba(255,255,255,.66)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--primary);background-image:linear-gradient(var(--primary),var(--primary));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  padding-bottom:3px;transition:background-size .2s var(--ease);
}
.link-arrow:hover{background-size:100% 1px}
.link-arrow i{transition:transform .2s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}
.section--ink .link-arrow{color:var(--accent);background-image:linear-gradient(var(--accent),var(--accent))}

/* ---------- 按钮 ---------- */
.btn-ink,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-ink{background:var(--ink);color:#fff;box-shadow:var(--shadow-1)}
.btn-ink:hover{background:#26262C;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ink:active{transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--hair)}
.btn-ghost:hover{background:var(--lilac);border-color:var(--primary);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn-ink[disabled],.btn-ghost[disabled]{opacity:.4;pointer-events:none}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.08em;line-height:1;
  padding:6px 11px;border-radius:999px;
  background:var(--lilac);color:var(--primary);
}
.tag--sm{font-size:11px;padding:4px 9px}
.tag--outline{background:transparent;border:1px solid rgba(255,77,46,.6);color:var(--danger-tone)}
.tag--accent{background:var(--accent);color:var(--ink)}
.tag--danger{background:rgba(255,77,46,.08);color:var(--danger-tone)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink);color:#fff;
  min-height:clamp(520px,72vh,760px);
  display:flex;flex-direction:column;justify-content:space-between;
  padding-top:clamp(48px,7vh,88px);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(760px 420px at 82% 12%,rgba(90,45,255,.34),transparent 68%);
}
.hero .shell{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.12em;
  padding:7px 14px;border-radius:999px;
}
.hero h1{
  margin-top:22px;
  font-size:clamp(30px,4.6vw,56px);
  line-height:1.15;font-weight:800;letter-spacing:-.01em;
  max-width:14em;
}
.hero-sub{
  margin-top:22px;font-size:clamp(15px,1.3vw,17px);
  line-height:1.8;color:rgba(255,255,255,.76);max-width:560px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero .btn-ink{background:#fff;color:var(--ink)}
.hero .btn-ink:hover{background:#EDEAE3;color:var(--ink)}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4)}
.hero .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
.hero-note{
  margin-top:20px;font-size:14px;line-height:1.7;
  color:rgba(255,255,255,.66);
}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  background:rgba(16,16,20,.25);
}
.float-card{
  position:absolute;z-index:3;
  background:rgba(255,255,255,.92);
  border:1px solid rgba(16,16,20,.08);
  border-radius:12px;padding:10px 14px;
  color:var(--ink);font-size:12px;line-height:1.4;
  box-shadow:0 10px 26px rgba(16,16,20,.18);
  backdrop-filter:blur(6px);
}
.float-card strong{display:block;font-size:15px;font-weight:700;letter-spacing:-.01em}
.float-card span{color:var(--muted)}
.fc-1{left:-6px;bottom:28px}
.fc-2{right:-6px;top:24px}
.hero-stats{
  position:relative;z-index:2;
  margin-top:clamp(40px,6vh,72px);
  border-top:1px solid rgba(255,255,255,.14);
}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat{
  padding:24px 8px 28px;
  border-left:1px solid rgba(255,255,255,.14);
}
.stat:first-child{border-left:0;padding-left:0}
.stat b{
  display:block;font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.1;
  letter-spacing:-.02em;color:#fff;
}
.stat b em{font-style:normal;font-size:.5em;font-weight:600;color:var(--accent);margin-left:4px}
.stat span{display:block;margin-top:8px;font-size:12px;letter-spacing:.08em;color:rgba(255,255,255,.6)}

/* ---------- 分类入口带 ---------- */
.cat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-item{
  display:block;position:relative;
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius-card);
  padding:26px 24px 24px;color:var(--text);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:var(--shadow-1);
}
.cat-item .idx{
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--primary);
  display:block;margin-bottom:16px;
}
.cat-item h3{font-size:19px;font-weight:600;line-height:1.4;letter-spacing:-.01em}
.cat-item p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--muted)}
.cat-item .go{
  position:absolute;right:22px;bottom:22px;font-size:18px;color:var(--muted);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.cat-item:hover{background:var(--lilac);border-color:rgba(90,45,255,.3);transform:translateY(-4px);box-shadow:var(--shadow-2);color:var(--text)}
.cat-item:hover .go{transform:translateX(4px);color:var(--primary)}

/* ---------- 优惠阶梯 ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:end}
.ladder-card{
  position:relative;background:var(--surface);
  border:1px solid var(--hair);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(90,45,255,.28)}
.ladder-card:nth-child(1){min-height:248px}
.ladder-card:nth-child(2){min-height:280px}
.ladder-card:nth-child(3){min-height:312px}
.ladder-card:nth-child(4){min-height:344px}
.ladder-card .lv{
  font-size:28px;font-weight:800;letter-spacing:-.02em;color:var(--hair);line-height:1;
}
.ladder-card h3{margin-top:12px;font-size:18px;font-weight:600}
.ladder-card .need{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6}
.ladder-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.ladder-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;line-height:1.65;color:var(--text);
}
.ladder-list li::before{
  content:"";flex:0 0 7px;width:7px;height:7px;margin-top:8px;
  background:var(--primary);border-radius:2px;
}
.ladder-card .tag{margin-top:18px}
.ladder-line{
  height:1px;margin:28px 0 32px;
  background:linear-gradient(90deg,rgba(90,45,255,.15),rgba(90,45,255,.55));
}

/* ---------- 套餐对比 ---------- */
.cmp-wrap{background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.cmp-row{
  display:grid;grid-template-columns:1.5fr repeat(4,1fr);
  min-height:56px;transition:background .2s var(--ease);
}
.cmp-row + .cmp-row{border-top:1px solid var(--hair)}
.cmp-row:hover{background:#FBFAF6}
.cmp-cell{
  display:flex;align-items:center;justify-content:center;
  padding:14px 12px;font-size:14px;color:var(--text);text-align:center;
  border-left:1px solid var(--hair);
}
.cmp-cell:first-child{border-left:0}
.cmp-head{background:#FBFAF6}
.cmp-head .cmp-cell{font-size:15px;font-weight:600;padding-top:20px;padding-bottom:20px}
.cmp-feature{
  justify-content:flex-start;text-align:left;color:var(--muted);
  padding-left:22px;font-size:14px;
}
.cmp-head .cmp-feature{color:var(--text);font-weight:600}
.cmp-col-featured{background:var(--lilac)}
.cmp-head .cmp-col-featured{position:relative;color:var(--primary)}
.cmp-head .cmp-col-featured::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);
}
.cmp-head .cmp-col-featured::after{
  content:"推荐";position:absolute;top:8px;right:10px;
  font-size:10px;letter-spacing:.08em;padding:3px 7px;border-radius:6px;
  background:var(--accent);color:var(--ink);font-weight:700;
}
.cmp-price{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:2px}
.cmp-foot{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:flex-end;margin-top:22px}

/* 移动端套餐卡 */
.plan-card{
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius-card);
  padding:22px;margin-bottom:16px;box-shadow:var(--shadow-1);
}
.plan-card.is-featured{border-color:rgba(90,45,255,.35);box-shadow:0 8px 24px rgba(90,45,255,.12);border-top:3px solid var(--accent)}
.plan-card h4{font-size:17px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:10px}
.plan-card dl{margin:14px 0 0}
.plan-line{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--hair);font-size:14px}
.plan-line:last-child{border-bottom:0}
.plan-line dt{color:var(--muted);font-weight:400}
.plan-line dd{margin:0;font-weight:500}

/* ---------- 限时入口 ---------- */
.limited{
  background:var(--ink);color:#fff;
  border-radius:var(--radius-lg);
  padding:clamp(28px,4vw,42px);
  display:grid;grid-template-columns:1.1fr 1.4fr auto;gap:32px;align-items:center;
}
.limited h2{
  font-size:clamp(20px,2.2vw,28px);line-height:1.3;font-weight:700;margin-top:14px;letter-spacing:-.01em;
}
.limited .note{margin-top:10px;font-size:13px;color:rgba(255,255,255,.6)}
.countdown{display:flex;gap:12px}
.cd-box{
  flex:1 1 0;min-width:64px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;padding:14px 8px;text-align:center;
}
.cd-num{
  display:block;font-size:clamp(28px,3.2vw,40px);font-weight:800;line-height:1.05;
  color:#fff;letter-spacing:-.02em;
}
.cd-unit{display:block;margin-top:6px;font-size:11px;letter-spacing:.12em;color:rgba(255,255,255,.58)}
.cd-track{
  height:4px;border-radius:999px;background:rgba(255,255,255,.12);
  margin-top:18px;overflow:hidden;
}
.cd-fill{height:100%;background:var(--accent);border-radius:999px}
.limited-side{display:flex;flex-direction:column;align-items:flex-start;gap:14px}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.lead-card{
  display:block;background:var(--surface);border:1px solid var(--hair);
  border-radius:var(--radius-card);overflow:hidden;color:var(--text);
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.lead-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(90,45,255,.28);color:var(--text)}
.lead-media{overflow:hidden}
.lead-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.lead-card:hover .lead-media img{transform:scale(1.03)}
.lead-body{padding:24px}
.lead-body h3{
  margin-top:14px;font-size:20px;font-weight:600;line-height:1.45;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.lead-body p{
  margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.lead-meta{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.news-list{background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius-card);overflow:hidden}
.news-row{
  display:flex;align-items:center;gap:16px;
  min-height:78px;padding:14px 22px;color:var(--text);
  transition:background .2s var(--ease);
}
.news-row + .news-row{border-top:1px solid var(--hair)}
.news-row:hover{background:var(--lilac);color:var(--text)}
.news-row .nr-main{flex:1 1 auto;min-width:0}
.news-row .nr-title{
  font-size:15px;font-weight:500;line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-row .nr-meta{
  margin-top:5px;display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);
}
.news-row .bi-arrow-right{color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease)}
.news-row:hover .bi-arrow-right{transform:translateX(4px);color:var(--primary)}
.empty-state{
  border:1px dashed rgba(90,45,255,.3);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;background:rgba(255,255,255,.6);
}
.empty-state i{font-size:40px;color:var(--primary);opacity:.7}
.empty-state strong{display:block;margin-top:14px;font-size:16px;font-weight:600}
.empty-state span{display:block;margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:var(--surface);border:1px solid var(--hair);border-radius:12px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq .accordion-item:last-child{margin-bottom:0}
.faq .accordion-button{
  position:relative;width:100%;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  background:transparent;padding:20px 54px 20px 22px;
  box-shadow:none;
}
.faq .accordion-button::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;background-image:none;margin:0;
  font-size:22px;font-weight:400;color:var(--muted);line-height:1;
  transition:transform .18s var(--ease),color .18s var(--ease);
  background:none;
}
.faq .accordion-button:not(.collapsed){
  color:var(--primary);background:var(--lilac);box-shadow:none;
}
.faq .accordion-button:not(.collapsed)::after{
  content:"+";transform:translateY(-50%) rotate(45deg);color:var(--primary);
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .2s var(--ease);
}
.faq .accordion-button:not(.collapsed)::before{opacity:1}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.faq .accordion-body{padding:4px 22px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- 咨询表单 ---------- */
.apply-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,56px);align-items:start}
.apply-points{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.apply-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.7}
.apply-points li::before{
  content:"";flex:0 0 7px;width:7px;height:7px;margin-top:9px;border-radius:2px;background:var(--primary);
}
.form-card{
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius-card);
  padding:clamp(22px,3vw,32px);box-shadow:var(--shadow-1);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px}
.field .req{color:var(--danger-tone);margin-left:2px}
.field .control{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--hair);border-radius:10px;background:#fff;
  font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea.control{height:auto;padding:12px 14px;line-height:1.7;resize:vertical}
.field .control::placeholder{color:#A9A49B}
.field .control:hover{border-color:#C9C4BA}
.field .control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--primary)}
.field select.control{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%236E6A63' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field-check{display:flex;align-items:flex-start;gap:10px;margin-bottom:18px}
.field-check input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);flex:0 0 18px}
.field-check label{font-size:13px;line-height:1.7;color:var(--muted)}
.field-error{display:none;margin-top:7px;font-size:13px;color:var(--danger-tone)}
.field.has-error .control{border-color:var(--danger-tone)}
.form-tip{
  display:none;margin-bottom:18px;padding:14px 16px;border-radius:12px;
  background:var(--lilac);color:var(--primary-dark);font-size:14px;line-height:1.7;
}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:#fff;padding:clamp(48px,6vw,76px) 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:12px}
.foot-brand .logo-mark{background:var(--accent);color:var(--ink)}
.foot-brand .l1{font-size:16px;font-weight:700;color:#fff}
.foot-brand .l2{font-size:11px;font-weight:300;letter-spacing:.18em;color:rgba(255,255,255,.6)}
.foot-about{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:330px}
.foot-grid h4{
  font-size:13px;letter-spacing:.12em;font-weight:600;color:rgba(255,255,255,.55);
  margin-bottom:18px;
}
.foot-links{display:flex;flex-direction:column;gap:12px}
.foot-links a{
  font-size:14px;color:rgba(255,255,255,.7);
  transition:color .2s var(--ease),transform .2s var(--ease);
  align-self:flex-start;
}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.7)}
.foot-contact strong{color:#fff;font-weight:600}
.foot-bottom{
  margin-top:clamp(36px,5vw,56px);
  border-top:1px solid var(--hair-dark);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.06s}
.reveal:nth-child(3){transition-delay:.12s}
.reveal:nth-child(4){transition-delay:.18s}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero h1{font-size:clamp(28px,4.2vw,44px)}
  .ladder-card:nth-child(1),
  .ladder-card:nth-child(2),
  .ladder-card:nth-child(3),
  .ladder-card:nth-child(4){min-height:0}
}
@media (max-width:991.98px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:0;border-top:1px solid rgba(255,255,255,.14);padding:20px 0}
  .stat:nth-child(odd){padding-right:16px}
  .cat-band{grid-template-columns:repeat(2,1fr)}
  .ladder{grid-template-columns:repeat(2,1fr);align-items:stretch}
  .news-grid{grid-template-columns:1fr}
  .limited{grid-template-columns:1fr;gap:24px}
  .apply-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .hero{min-height:0;padding-bottom:0}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn-ink,.hero-cta .btn-ghost{width:100%}
  .hero-visual{margin-top:36px}
  .circle-none{}
  .cat-band{grid-template-columns:1fr;gap:0;background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius-card);overflow:hidden}
  .cat-item{border:0;border-radius:0;box-shadow:none;padding:20px 22px}
  .cat-item + .cat-item{border-top:1px solid var(--hair)}
  .cat-item:hover{transform:none;box-shadow:none}
  .ladder{grid-template-columns:1fr;gap:0}
  .ladder-card{border-radius:0;border-left:0;border-right:0;border-top:0;padding:22px 0 22px 22px;position:relative}
  .ladder-card::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--hair);
  }
  .ladder-card::after{
    content:"";position:absolute;left:-4px;top:26px;width:10px;height:10px;border-radius:50%;
    background:var(--primary);
  }
  .ladder-card:first-child{border-top:1px solid var(--hair)}
  .ladder-card:last-child{border-bottom:1px solid var(--hair)}
  .ladder-line{display:none}
  .countdown{flex-wrap:wrap}
  .cd-box{flex:1 1 44%}
  .limited-side{width:100%}
  .limited-side .btn-ink{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .cmp-foot{justify-content:stretch;flex-direction:column;align-items:stretch}
  .cmp-foot .btn-ink{width:100%}
}
@media (max-width:519.98px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat b{font-size:26px}
  .lead-body{padding:20px}
  .news-row{padding:14px 16px;gap:12px}
  .form-card{padding:22px}
}

/* roulang page: article */
:root{
  --primary:#5A2DFF;
  --primary-soft:#F0ECFF;
  --accent:#C9F227;
  --danger:#FF4D2E;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#101014;
  --text:#1B1B20;
  --muted:#6E6A63;
  --line:#E4E0D8;
  --line-dark:rgba(255,255,255,.12);
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --shadow-1:0 1px 2px rgba(16,16,20,.04);
  --shadow-2:0 12px 32px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:220px;
}
@media (min-width:1400px){:root{--side:248px}}
@media (min-width:1200px) and (max-width:1399.98px){:root{--side:220px}}
@media (min-width:1024px) and (max-width:1199.98px){:root{--side:200px}}
@media (max-width:1023.98px){:root{--side:0px}}

*,*::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,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color 200ms var(--ease),background 200ms var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.005em}
p{margin:0}
ul,ol{margin:0}
a:focus-visible,button:focus-visible,.side-link:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;
}

.shell{max-width:1200px;margin:0 auto;padding-left:clamp(20px,4vw,56px);padding-right:clamp(20px,4vw,56px)}
.section{padding-top:clamp(30px,4.4vw,48px);padding-bottom:clamp(30px,4.4vw,48px)}

/* ---------- 侧边导航 ---------- */
.side{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:1040;overflow-y:auto;
}
.brand{
  display:flex;align-items:center;gap:10px;height:88px;min-height:88px;
  padding-left:24px;padding-right:16px;border-bottom:1px solid var(--line);
}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;background:var(--primary);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;letter-spacing:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.22;min-width:0}
.logo-text .l1{font-weight:700;font-size:15px;white-space:nowrap}
.logo-text .l2{font-weight:300;font-size:12px;color:var(--muted);white-space:nowrap}
.side-nav{display:flex;flex-direction:column;gap:2px;padding:14px 12px}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--muted);font-size:15px;transition:all 200ms var(--ease);
}
.side-link i{font-size:18px;line-height:1;min-width:18px;text-align:center}
.side-link:hover{background:var(--primary-soft);color:var(--ink)}
.side-link.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--primary);
}
.side-foot{margin-top:auto;padding:16px 12px 22px;border-top:1px solid var(--line)}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:44px;border-radius:999px;background:var(--ink);color:#fff;font-size:14px;font-weight:600;
}
.side-cta:hover{background:var(--primary);color:#fff}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;height:56px;align-items:center;justify-content:space-between;
  padding:0 14px 0 16px;background:var(--surface);border-bottom:1px solid var(--line);z-index:1030;
}
.mobile-brand{display:flex;align-items:center;gap:9px}
.mobile-brand .logo-mark{width:30px;height:30px;flex:0 0 30px;font-size:14px;border-radius:8px}
.mobile-brand .m-name{font-weight:700;font-size:15px}
.burger{
  width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);
  background:transparent;border-radius:10px;font-size:20px;color:var(--text);
}
.burger:hover{border-color:var(--primary);color:var(--primary)}
.drawer{width:min(82vw,320px);background:var(--surface);border-right:1px solid var(--line)}
.drawer .brand{height:76px;min-height:76px}
.offcanvas-backdrop{background:rgba(16,16,20,.45)}

.main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}

/* ---------- 按钮 ---------- */
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:999px;
  background:var(--ink);color:#fff;font-size:15px;font-weight:600;
  transition:transform 200ms var(--ease),background 200ms var(--ease),box-shadow 200ms var(--ease),color 200ms var(--ease);
}
.btn-solid:hover{background:#1e1e26;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-solid:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid var(--line);border-radius:999px;
  background:transparent;color:var(--text);font-size:15px;font-weight:600;
  transition:all 200ms var(--ease);
}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-soft);color:var(--primary)}
.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:999px;
  background:var(--accent);color:var(--ink);font-size:15px;font-weight:700;
  transition:all 200ms var(--ease);
}
.btn-lime:hover{background:#d7fa45;transform:translateY(-2px);color:var(--ink)}

/* ---------- 文章头部 ---------- */
.post-hero{
  position:relative;background:var(--ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;overflow:hidden;
}
.post-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,16,20,.82),rgba(16,16,20,.72))}
.post-hero-in{position:relative;padding-top:clamp(30px,4.6vw,58px);padding-bottom:clamp(34px,5vw,60px)}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;flex-wrap:nowrap;overflow:hidden;line-height:1.6}
.crumbs a{color:rgba(255,255,255,.72);white-space:nowrap}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:rgba(255,255,255,.34)}
.crumbs .cur{color:#fff;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-title{
  font-size:clamp(26px,3.6vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  margin:18px 0 18px;max-width:22em;color:#fff;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.68)}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.4);display:inline-block}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:var(--ink);
  border-radius:999px;padding:5px 13px;font-size:12px;font-weight:700;letter-spacing:.06em;
}

/* ---------- 阅读区 ---------- */
.read-wrap{max-width:760px}
.post-cover{margin:0 0 clamp(26px,3.4vw,38px);border-radius:var(--r-img);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-2)}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-body{font-size:17px;line-height:1.9;color:var(--text);word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;
  margin:48px 0 16px;padding-left:12px;border-left:3px solid var(--primary);
}
.article-body h3{font-size:clamp(18px,1.8vw,21px);line-height:1.4;font-weight:600;margin:32px 0 12px}
.article-body h4{font-size:17px;line-height:1.5;font-weight:600;margin:24px 0 10px}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{text-decoration-color:var(--accent)}
.article-body strong{font-weight:700}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.2em}
.article-body ul > li{position:relative;padding-left:20px;margin-bottom:.6em}
.article-body ul > li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:2px;background:var(--primary)}
.article-body ol{list-style:none;padding-left:0;margin:0 0 1.2em;counter-reset:li}
.article-body ol > li{counter-increment:li;position:relative;padding-left:36px;margin-bottom:.7em}
.article-body ol > li::before{
  content:counter(li);position:absolute;left:0;top:.24em;width:24px;height:24px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:13px;font-weight:700;display:grid;place-items:center;
}
.article-body blockquote{
  margin:24px 0;padding:20px;background:var(--primary-soft);border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;color:#2c2c35;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;text-align:center;color:var(--muted);margin-top:8px}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:24px 0;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#faf9f5;font-weight:600}
.article-body pre{
  background:var(--ink);color:#f4f2ee;padding:18px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.94em}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- 空态 ---------- */
.empty{
  border:1px dashed rgba(90,45,255,.4);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;background:rgba(255,255,255,.6);
}
.empty i{font-size:40px;color:var(--primary);line-height:1}
.empty h2{font-size:20px;margin:16px 0 8px}
.empty p{font-size:14px;color:var(--muted);margin-bottom:22px}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row .t-label{font-size:13px;color:var(--muted);align-self:center;letter-spacing:.08em}
.tag-pill{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(90,45,255,.4);color:var(--primary);font-size:13px;
  transition:all 200ms var(--ease);
}
.tag-pill:hover{background:var(--primary-soft);border-color:var(--primary)}

/* ---------- 推荐区 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.sec-label{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--primary);margin-bottom:8px}
.sec-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3}
.sec-head .sec-note{font-size:14px;color:var(--muted);max-width:34em}
.rel-list{margin-top:24px;border-top:1px solid var(--line)}
.rel-item{
  display:flex;align-items:center;gap:16px;padding:16px 12px;border-bottom:1px solid var(--line);
  transition:background 200ms var(--ease);
}
.rel-item:hover{background:var(--primary-soft)}
.rel-thumb{flex:0 0 96px;width:96px;height:72px;border-radius:10px;overflow:hidden;background:var(--line)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-txt{min-width:0}
.rel-txt h3{
  font-size:16px;font-weight:600;line-height:1.45;margin-bottom:4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-txt p{margin:0;font-size:13px;color:var(--muted)}
.rel-arrow{margin-left:auto;color:var(--muted);font-size:18px;flex:0 0 auto;transition:transform 200ms var(--ease),color 200ms var(--ease)}
.rel-item:hover .rel-arrow{transform:translateX(4px);color:var(--primary)}
.back-row{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 咨询横条 ---------- */
.cta-strip{background:var(--primary-soft);border-top:1px solid rgba(90,45,255,.14);border-bottom:1px solid rgba(90,45,255,.14)}
.cta-in{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  min-height:110px;padding-top:24px;padding-bottom:24px;flex-wrap:wrap;
}
.cta-in h2{font-size:clamp(20px,2.2vw,26px);line-height:1.35;margin-bottom:6px}
.cta-in p{font-size:14px;color:#4b4a52}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);margin-top:auto;padding-top:clamp(40px,5vw,64px)}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:clamp(24px,3vw,48px);
  padding-bottom:clamp(30px,4vw,48px);border-bottom:1px solid var(--line-dark);
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .logo-mark{width:34px;height:34px;flex:0 0 34px;border-radius:9px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800;font-size:15px}
.foot-brand .logo-text .l1{color:#fff;font-weight:700;font-size:15px}
.foot-brand .logo-text .l2{color:rgba(255,255,255,.5);font-weight:300;font-size:12px}
.foot-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:30em}
.site-foot h4{font-size:13px;letter-spacing:.12em;color:#fff;font-weight:600;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.7);width:fit-content;transition:all 200ms var(--ease)}
.foot-links a:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:3px}
.foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.62)}
.foot-contact strong{color:#fff;font-weight:600}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 26px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023.98px){
  .side{display:none}
  .mobile-bar{display:flex}
  .main{margin-left:0}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  body{font-size:15px}
  .section{padding-top:56px;padding-bottom:56px}
  .article-body{font-size:16px;line-height:1.85}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-in{flex-direction:column;align-items:flex-start;min-height:0;padding-top:28px;padding-bottom:28px}
  .cta-in .btn-solid,.cta-in .btn-lime{width:100%}
  .rel-item{align-items:flex-start}
  .rel-thumb{flex:0 0 80px;width:80px;height:62px}
  .post-meta{gap:8px}
  .back-row .btn-ghost{width:100%}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --primary:#5A2DFF;
  --primary-soft:#F0ECFF;
  --accent:#C9F227;
  --accent-strong:#BCE312;
  --danger:#FF4D2E;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#101014;
  --text:#1B1B20;
  --muted:#6E6A63;
  --line:#E4E0D8;
  --line-dark:rgba(255,255,255,.12);
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(16,16,20,.04);
  --shadow-2:0 12px 32px rgba(16,16,20,.10);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --side-w:248px;
}
@media (max-width:1399.98px){:root{--side-w:220px}}
@media (max-width:1199.98px){:root{--side-w:200px}}
@media (max-width:1023.98px){:root{--side-w:0px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--primary)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary);color:#fff}

.shell{
  max-width:1200px;
  margin:0 auto;
  padding-left:clamp(20px,4vw,56px);
  padding-right:clamp(20px,4vw,56px);
  width:100%;
}

/* ---------- 左侧导航 ---------- */
.side{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--side-w);
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  z-index:1040;
}
.side-top{height:88px;display:flex;align-items:center;padding-left:24px;flex:0 0 auto}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--ink);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text .l1{font-size:15px;font-weight:700;color:var(--ink)}
.logo-text .l2{font-size:12px;font-weight:300;color:var(--muted);letter-spacing:.08em}

.side-nav{display:flex;flex-direction:column;padding:4px 0 8px}
.side-link{
  display:flex;align-items:center;gap:10px;
  height:44px;padding-left:24px;
  font-size:15px;color:var(--muted);
  border-left:3px solid transparent;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.side-link i{font-size:18px;line-height:1;width:18px;text-align:center}
.side-link:hover{color:var(--ink);background:#F7F5FF}
.side-link.is-active{
  color:var(--primary);
  background:var(--primary-soft);
  border-left-color:var(--primary);
  font-weight:600;
}
.side-sep{height:1px;background:var(--line);margin:8px 24px 8px 24px}
.side-latest{padding:8px 24px 16px}
.side-latest-title{
  font-size:12px;letter-spacing:.12em;color:var(--muted);
  margin-bottom:8px;font-weight:600;
}
.side-latest a{
  display:block;
  font-size:13px;color:var(--muted);
  padding:7px 0;
  line-height:1.5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  border-bottom:1px dashed rgba(0,0,0,.06);
}
.side-latest a:last-child{border-bottom:0}
.side-latest a:hover{color:var(--primary)}
.side-cta{margin-top:auto;padding:16px 24px 24px;flex:0 0 auto}
.side-cta .btn-accent{width:100%;justify-content:center}

/* ---------- 顶部移动栏 ---------- */
.topbar{
  display:none;
  position:sticky;top:0;z-index:1030;
  height:56px;background:var(--surface);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;
}
.topbar .logo-mark{width:30px;height:30px;font-size:15px;border-radius:8px}
.topbar-toggle{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:19px;
}
.topbar-toggle:hover{border-color:var(--primary);color:var(--primary)}

.offcanvas.side-drawer{
  width:min(82vw,320px) !important;
  background:var(--surface);
  border-right:1px solid var(--line);
}
.offcanvas-backdrop.show{opacity:1;background:rgba(16,16,20,.45)}
.side-drawer .drawer-head{
  height:64px;display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;display:flex;align-items:center;justify-content:center;color:var(--ink);
}
.side-drawer .side-link{padding-left:18px}
.side-drawer .side-sep{margin-left:18px;margin-right:18px}
.side-drawer .side-latest{padding-left:18px;padding-right:18px}
.side-drawer .side-cta{padding:16px 18px 24px}

/* ---------- 主区域 ---------- */
.page{margin-left:var(--side-w)}
@media (max-width:1023.98px){
  .side{display:none}
  .topbar{display:flex}
  .page{margin-left:0}
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease),color var(--ease);
  cursor:pointer;
}
.btn-main,.btn-accent{background:var(--accent);color:var(--ink)}
.btn-main:hover,.btn-accent:hover{background:var(--accent-strong);color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-main:active,.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-main:focus-visible,.btn-ghost:focus-visible,.btn-accent:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-main[aria-disabled="true"]{opacity:.4;pointer-events:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.link-arrow i{transition:transform var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  padding:28px 0 0;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary);text-decoration:underline}
.crumb .cur{color:var(--ink);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  background:var(--primary-soft);color:var(--primary);
}
.tag-accent{background:var(--accent);color:var(--ink)}
.tag-line{border:1px solid rgba(90,45,255,.35);background:transparent;color:var(--primary)}

/* ---------- Hero ---------- */
.hero{padding:24px 0 clamp(48px,6vw,80px)}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  margin:18px 0 16px;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 18px}
.hero-note{font-size:14px;color:var(--muted);line-height:1.7}
.hero-fig{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  aspect-ratio:16/10;
  background:#EDEAE3;
}
.hero-fig img{width:100%;height:100%;object-fit:cover}

/* ---------- 板块通用 ---------- */
.section{padding:clamp(48px,6vw,80px) 0}
.section-alt{background:#F1EEE7}
.sec-head{margin-bottom:clamp(28px,3.5vw,44px);max-width:52em}
.sec-tag{
  display:inline-block;
  font-size:12px;letter-spacing:.12em;font-weight:700;
  color:var(--primary);
  border-left:3px solid var(--primary);
  padding-left:10px;
  margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.25;font-weight:700;color:var(--ink);
  margin-bottom:12px;
}
.sec-desc{font-size:16px;color:var(--muted)}

/* ---------- 序号条目清单 ---------- */
.num-list{border-top:1px solid var(--line)}
.num-list li{
  display:flex;gap:20px;align-items:flex-start;
  padding:24px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color var(--ease);
}
.num-list li:hover{background:var(--primary-soft)}
.num-box{
  flex:0 0 auto;
  width:44px;height:44px;border-radius:4px;
  border:1px solid var(--primary);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
  background:#fff;
}
.num-list h3{font-size:clamp(18px,1.6vw,21px);font-weight:600;color:var(--ink);line-height:1.4;margin-bottom:6px}
.num-list p{font-size:15px;color:var(--muted);line-height:1.8;max-width:60em}

/* ---------- 图文交替 ---------- */
.zig{padding:clamp(20px,3vw,36px) 0}
.zig + .zig{border-top:1px dashed var(--line)}
.zig h3{font-size:clamp(20px,2vw,26px);font-weight:700;color:var(--ink);line-height:1.35;margin:14px 0 12px}
.zig p{font-size:16px;color:var(--muted);line-height:1.9;margin-bottom:12px}
.zig-fig{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:#EDEAE3;
  box-shadow:var(--shadow-1);
}
.zig-fig img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.zig-fig:hover img{transform:scale(1.03)}
.mini-steps{display:flex;flex-direction:column;gap:0;margin-top:6px}
.mini-steps li{
  display:flex;gap:12px;align-items:baseline;
  font-size:15px;color:var(--text);
  padding:10px 0;
  border-bottom:1px solid var(--line);
}
.mini-steps li:last-child{border-bottom:0}
.mini-steps .sq{
  width:8px;height:8px;background:var(--primary);
  border-radius:2px;flex:0 0 auto;transform:translateY(-1px);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px !important;
  overflow:hidden;
  margin-bottom:12px;
  box-shadow:var(--shadow-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.accordion-item:hover{border-color:rgba(90,45,255,.3);box-shadow:var(--shadow-2)}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);
  background:var(--surface);
  padding:20px 22px;
  border:0;
  box-shadow:none !important;
  line-height:1.5;
}
.accordion-button:not(.collapsed){
  color:var(--primary);
  background:var(--primary-soft);
  border-left:3px solid var(--primary);
}
.accordion-button::after{
  background-image:none;
  content:"+";
  font-size:20px;font-weight:400;line-height:1;
  width:auto;height:auto;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  transform:none;
  transition:transform 180ms cubic-bezier(.2,.7,.3,1);
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.accordion-body{
  font-size:15px;line-height:1.8;color:var(--muted);
  padding:4px 22px 22px;
  background:var(--surface);
}
.accordion-button:focus-visible{outline:2px solid var(--primary);outline-offset:-3px}

/* ---------- 底部咨询条 ---------- */
.cta-band{
  background:var(--ink);
  border-radius:var(--r-lg);
  padding:clamp(28px,4vw,44px);
  margin:clamp(48px,6vw,80px) 0;
  border:1px solid var(--line-dark);
}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;line-height:1.35;
  margin-bottom:12px;
}
.cta-band p{color:rgba(255,255,255,.7);font-size:15px;line-height:1.8;max-width:36em}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start;justify-content:flex-end}
.cta-field{flex:1 1 150px;min-width:140px}
.cta-field label{
  display:block;font-size:12px;letter-spacing:.08em;
  color:rgba(255,255,255,.66);margin-bottom:6px;
}
.cta-field input{
  width:100%;height:46px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
  border-radius:var(--r-sm);
  color:#fff;padding:0 14px;
  transition:border-color var(--ease),background-color var(--ease);
}
.cta-field input::placeholder{color:rgba(255,255,255,.4)}
.cta-field input:hover{border-color:rgba(255,255,255,.3)}
.cta-field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(201,242,39,.25)}
.cta-submit{flex:0 0 auto;margin-top:22px}
.cta-tip{
  margin-top:14px;font-size:13px;color:rgba(255,255,255,.55);
  width:100%;text-align:right;
}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:rgba(255,255,255,.7);margin-top:0}
.site-foot .shell{padding-top:clamp(48px,5vw,72px);padding-bottom:28px}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(24px,4vw,48px);
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .logo-mark{background:var(--accent);color:var(--ink)}
.foot-brand .logo-text .l1{color:#fff;font-size:15px;font-weight:700}
.foot-brand .logo-text .l2{color:rgba(255,255,255,.55);font-size:12px;font-weight:300;letter-spacing:.08em}
.foot-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:26em}
.site-foot h4{
  font-size:13px;letter-spacing:.12em;font-weight:600;
  color:rgba(255,255,255,.5);
  margin-bottom:16px;
}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{
  font-size:14px;color:rgba(255,255,255,.7);
  transition:color var(--ease),transform var(--ease);
  width:fit-content;
}
.foot-links a:hover{color:#fff;transform:translateX(2px);text-decoration:underline}
.foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.7)}
.foot-contact strong{color:#fff;font-weight:600}
.foot-bottom{
  margin-top:clamp(32px,4vw,48px);
  padding-top:20px;
  border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023.98px){
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-form{justify-content:flex-start}
  .cta-submit{margin-top:0;width:100%}
  .cta-submit .btn-main{width:100%;justify-content:center}
  .cta-tip{text-align:left}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:56px 0}
  .hero{padding:8px 0 40px}
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%;justify-content:center}
  .num-list li{flex-direction:row;gap:14px;padding:20px 4px}
  .num-box{width:38px;height:38px;font-size:14px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:24px 20px}
  .accordion-button{font-size:16px;padding:16px 16px}
  .accordion-body{padding:2px 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .btn-main:hover,.btn-accent:hover,.btn-ghost:hover{transform:none}
  .zig-fig:hover img{transform:none}
}

/* roulang page: category2 */
:root{
  --primary:#5A2DFF;
  --primary-soft:#F0ECFF;
  --accent:#C9F227;
  --danger:#FF4D2E;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#101014;
  --text:#1B1B20;
  --muted:#6E6A63;
  --muted-strong:#4A4560;
  --line:#E4E0D8;
  --line-dark:rgba(255,255,255,.12);
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(16,16,20,.04);
  --sh-2:0 12px 32px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.005em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
::selection{background:var(--primary);color:#fff}
.shell{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,56px)}

/* ============ 侧栏 App Shell ============ */
.app-side{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:1040;overflow-y:auto;
}
.side-brand{height:88px;display:flex;align-items:center;gap:12px;padding-left:24px;border-bottom:1px solid var(--line);flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-size:16px;font-weight:700;flex-shrink:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text .l1{font-size:15px;font-weight:700;color:var(--text)}
.logo-text .l2{font-size:12px;font-weight:300;letter-spacing:.08em;color:var(--muted)}
.side-nav{display:flex;flex-direction:column;gap:2px;padding:16px 12px}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;height:44px;
  padding:0 12px;border-radius:8px;color:var(--muted);font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link i{font-size:18px;width:18px;text-align:center}
.side-link:hover{background:var(--primary-soft);color:var(--text)}
.side-link.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:2px;background:var(--primary);
}
.side-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.side-sep{height:1px;background:var(--line);margin:8px 24px}
.side-latest{padding:12px 24px 0;flex:1}
.side-latest h3{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:600;margin-bottom:10px}
.side-mini{
  display:block;font-size:14px;color:var(--muted);padding:9px 0;
  border-bottom:1px solid var(--line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.side-mini:hover{color:var(--primary);padding-left:5px}
.side-foot{padding:18px 24px 24px}
.side-cta{
  display:grid;place-items:center;height:44px;border-radius:999px;
  background:var(--accent);color:var(--ink);font-size:14px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.side-cta:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--ink)}
.side-cta:focus-visible{outline:2px solid var(--primary);outline-offset:3px}

/* 移动端顶栏 */
.top-bar{display:none}
.nav-drawer{width:min(82vw,320px);background:var(--surface);border-right:1px solid var(--line)}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:0 20px;height:64px}
.nav-drawer .offcanvas-body{padding:0;display:flex;flex-direction:column}
.nav-drawer .side-nav{padding:14px 10px}
.nav-drawer .btn-close{opacity:.5}
.nav-drawer .btn-close:focus{box-shadow:none;outline:2px solid var(--primary)}
.offcanvas-backdrop.show{background:rgba(16,16,20,.45)}

/* ============ 主区 ============ */
.app-main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.app-main>main{flex:1}

/* ============ Hero ============ */
.page-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:clamp(28px,3.6vw,48px) 0 clamp(40px,5vw,68px)}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px}
.crumb a{transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{opacity:.5}
.crumb .now{color:var(--text);max-width:220px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.page-hero h1{font-size:clamp(30px,4vw,48px);font-weight:800;line-height:1.15;letter-spacing:-.01em;margin-bottom:18px}
.hero-lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:620px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 28px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;letter-spacing:.08em;
}
.tag--line{background:transparent;border:1px solid rgba(255,77,46,.55);color:var(--danger)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-x--ink{background:var(--ink);color:#fff}
.btn-x--ink:hover{background:#000;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-x--ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-x--ghost:hover{background:var(--primary-soft);border-color:rgba(90,45,255,.4);color:var(--primary);transform:translateY(-2px)}
.btn-x:active{transform:translateY(1px)}
.btn-x:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.hero-figure{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2)}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure .fig-badge{
  position:absolute;left:16px;bottom:16px;padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.92);border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink);
}

/* ============ 板块 ============ */
.sec{padding:clamp(56px,6.4vw,96px) 0}
.sec--surface{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,44px)}
.kicker{
  display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--primary);
  border:1px solid rgba(90,45,255,.35);border-radius:4px;padding:4px 10px;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.25;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:16px;line-height:1.8}

/* 流程带 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative}
.flow::before{content:"";position:absolute;top:22px;left:24px;right:24px;height:1px;background:var(--line)}
.flow-step{position:relative;z-index:1}
.step-num{
  width:44px;height:44px;border-radius:12px;background:var(--bg);border:1px solid var(--line);
  display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--primary);
  margin-bottom:20px;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.flow-step:hover .step-num{border-color:rgba(90,45,255,.45)}
.flow-step h3{font-size:18px;font-weight:600;line-height:1.4;margin-bottom:10px}
.flow-step p{font-size:14.5px;line-height:1.75;color:var(--muted)}

/* 规格说明 */
.spec-block h3{
  display:flex;align-items:center;font-size:clamp(18px,1.6vw,22px);font-weight:600;
  line-height:1.4;margin-bottom:20px;padding-left:12px;border-left:3px solid var(--primary);
}
.dot-list li{position:relative;padding-left:22px;margin-bottom:18px;font-size:15.5px;line-height:1.85}
.dot-list li:last-child{margin-bottom:0}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;
  border-radius:2px;background:var(--primary);
}
.spec-note{
  margin-top:32px;display:flex;gap:16px;align-items:flex-start;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;
}
.spec-note i{font-size:20px;color:var(--primary);line-height:1.5}
.spec-note p{font-size:14.5px;line-height:1.8;color:var(--muted)}

/* 对比表 */
.cmp-scroll{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
}
.cmp-row{
  display:grid;grid-template-columns:1.1fr repeat(3,1fr);min-width:720px;
  transition:background .2s var(--ease);
}
.cmp-row:hover{background:var(--primary-soft)}
.cmp-row--head{background:#FBF9F5}
.cmp-row--head .cmp-cell{font-size:14px;font-weight:600;letter-spacing:.03em;color:var(--text)}
.cmp-cell{padding:18px 20px;border-bottom:1px solid var(--line);font-size:15px;line-height:1.7}
.cmp-row:last-child .cmp-cell{border-bottom:0}
.cmp-cell--label{color:var(--muted);font-weight:600}
.cmp-foot{margin-top:20px;font-size:13.5px;color:var(--muted)}

/* FAQ */
.acc{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--surface);
}
.acc .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.acc .accordion-item:last-child{border-bottom:0}
.acc .accordion-header{margin:0}
.acc .accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:600;
  padding:22px 24px;border-radius:0;box-shadow:none;line-height:1.5;
}
.acc .accordion-button:focus{box-shadow:none;border-color:transparent;outline:none}
.acc .accordion-button:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.acc .accordion-button:not(.collapsed){
  color:var(--primary);background:var(--primary-soft);
  box-shadow:inset 3px 0 0 var(--primary);
}
.acc .accordion-button::after{
  content:"+";flex-shrink:0;width:26px;height:26px;margin-left:auto;
  background-image:none;display:grid;place-items:center;
  font-size:20px;font-weight:400;color:var(--primary);
  transition:transform .18s var(--ease),color .18s var(--ease);
}
.acc .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.acc .accordion-body{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--muted)}

/* 底部咨询条 */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--primary-soft);border:1px solid rgba(90,45,255,.16);
  border-radius:var(--r-img);padding:clamp(24px,3.4vw,40px);
}
.cta-copy h2{font-size:clamp(20px,2.2vw,26px);line-height:1.3;margin-bottom:10px}
.cta-copy p{color:var(--muted-strong);font-size:15px;line-height:1.8;max-width:560px}

/* 页脚 */
.site-foot{background:var(--ink);color:#fff;padding-top:clamp(48px,6vw,80px)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.foot-grid h4{font-size:13px;font-weight:600;letter-spacing:.12em;color:rgba(255,255,255,.6);margin-bottom:18px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.foot-brand .logo-mark{background:var(--accent);color:var(--ink)}
.foot-brand .l1{color:#fff;font-weight:700}
.foot-brand .l2{color:rgba(255,255,255,.55);font-weight:300}
.foot-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:330px}
.foot-links{display:flex;flex-direction:column;gap:12px}
.foot-links a{
  display:inline-block;width:fit-content;font-size:14px;color:rgba(255,255,255,.7);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.foot-links a:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:3px}
.foot-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.7)}
.foot-contact strong{color:#fff;font-weight:600}
.foot-bottom{
  border-top:1px solid var(--line-dark);padding:20px 0;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (min-width:1400px){:root{--side:248px}}
@media (min-width:1200px) and (max-width:1399.98px){:root{--side:220px}}
@media (min-width:1024px) and (max-width:1199.98px){
  :root{--side:200px}
  .side-link{font-size:14px}
  .side-brand{padding-left:18px}
  .side-nav{padding:14px 10px}
}
@media (max-width:1023.98px){
  .app-side{display:none}
  .app-main{margin-left:0}
  .top-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    height:56px;padding:0 16px;background:var(--surface);
    border-bottom:1px solid var(--line);position:sticky;top:0;z-index:1030;
  }
  .brand-mini{display:flex;align-items:center;gap:10px;min-width:0}
  .brand-mini .logo-mark{width:30px;height:30px;border-radius:9px;font-size:14px}
  .brand-mini span.name{
    font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .burger{
    width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);
    background:var(--surface);border-radius:10px;font-size:20px;color:var(--text);
    transition:background .2s var(--ease),border-color .2s var(--ease);
  }
  .burger:hover{background:var(--primary-soft);border-color:rgba(90,45,255,.35);color:var(--primary)}
  .burger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
}
@media (max-width:991.98px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .flow{grid-template-columns:1fr;gap:0}
  .flow::before{display:none}
  .flow-step{display:grid;grid-template-columns:44px 1fr;gap:16px;padding-bottom:28px;position:relative}
  .flow-step::before{content:"";position:absolute;left:21px;top:50px;bottom:6px;width:1px;background:var(--line)}
  .flow-step:last-child{padding-bottom:0}
  .flow-step:last-child::before{display:none}
  .step-num{margin-bottom:0}
  .cta-bar{flex-direction:column;align-items:flex-start;gap:20px}
  .cta-bar .btn-x{width:100%}
  .hero-figure{margin-top:8px}
}
@media (max-width:575.98px){
  .foot-grid{grid-template-columns:1fr}
  .btn-row .btn-x{width:100%}
  .page-hero h1{font-size:clamp(26px,7.6vw,34px)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --primary:#5A2DFF;
  --primary-soft:#F0ECFF;
  --primary-line:rgba(90,45,255,.30);
  --accent:#C9F227;
  --danger:#FF4D2E;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#101014;
  --ink-line:rgba(255,255,255,.12);
  --text:#1B1B20;
  --muted:#6E6A63;
  --hair:#E4E0D8;
  --r-btn:10px;
  --r-card:14px;
  --r-lg:16px;
  --sh-1:0 1px 2px rgba(16,16,20,.04);
  --sh-2:0 12px 32px rgba(16,16,20,.10);
  --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","Microsoft YaHei","Source Han Sans SC",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:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:var(--primary-soft);color:var(--primary);}

.shell{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,56px);}

/* ---------- 左侧 App Shell ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:200px;
  display:none;
  flex-direction:column;
  background:var(--surface);
  border-right:1px solid var(--hair);
  overflow-y:auto;
  z-index:1040;
}
@media(min-width:1024px){ .side-nav{display:flex;} }
@media(min-width:1200px){ .side-nav{width:220px;} }
@media(min-width:1400px){ .side-nav{width:248px;} }

.side-brand{
  height:88px;
  display:flex;
  align-items:center;
  gap:10px;
  padding-left:24px;
  flex:0 0 auto;
}
.logo-mark{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--ink);
  color:var(--accent);
  display:grid;place-items:center;
  font-size:17px;font-weight:800;
  flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text .l1{font-size:15px;font-weight:700;letter-spacing:.01em;}
.logo-text .l2{font-size:12px;font-weight:300;color:var(--muted);letter-spacing:.06em;}

.side-menu{display:flex;flex-direction:column;flex:0 0 auto;}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;
  padding:0 18px 0 24px;
  font-size:15px;
  color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link i{font-size:18px;width:18px;text-align:center;}
.side-link:hover{background:var(--primary-soft);color:var(--ink);}
.side-link.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}

.side-divider{height:1px;background:var(--hair);margin:18px 24px;flex:0 0 auto;}

.side-mini{padding:0 24px;flex:0 0 auto;}
.side-mini-title{
  font-size:12px;letter-spacing:.12em;color:var(--muted);
  margin-bottom:8px;text-transform:uppercase;
}
.side-mini a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--muted);
  padding:7px 0;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .2s var(--ease);
}
.side-mini a:hover{color:var(--primary);}

.side-foot{margin-top:auto;padding:20px;flex:0 0 auto;}
.btn-side{
  display:flex;align-items:center;justify-content:center;
  height:44px;border-radius:999px;
  background:var(--accent);color:var(--ink);
  font-size:14px;font-weight:600;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-side:hover{background:#BEED18;transform:translateY(-2px);box-shadow:0 8px 22px rgba(16,16,20,.16);}
.btn-side:active{transform:translateY(-1px);}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:1030;
  height:56px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:var(--surface);
  border-bottom:1px solid var(--hair);
}
@media(min-width:1024px){ .topbar{display:none;} }
.topbar-brand{display:flex;align-items:center;gap:8px;}
.topbar-name{font-size:15px;font-weight:700;}
.burger{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--hair);border-radius:10px;
  background:var(--surface);
  font-size:20px;color:var(--ink);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.burger:hover{background:var(--primary-soft);border-color:var(--primary-line);}

.drawer{width:min(82vw,320px);background:var(--surface);}
.drawer .offcanvas-header{
  height:64px;padding:0 20px;
  border-bottom:1px solid var(--hair);
  align-items:center;
}
.drawer .offcanvas-body{padding:16px 0 24px;}
.drawer .side-foot{margin-top:24px;padding:0 20px;}
.drawer .btn-close{opacity:.65;}

/* ---------- 主内容区 ---------- */
.app{padding-bottom:0;}
@media(min-width:1024px){ .app{margin-left:200px;} }
@media(min-width:1200px){ .app{margin-left:220px;} }
@media(min-width:1400px){ .app{margin-left:248px;} }

.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding-top:34px;
  font-size:13px;color:var(--muted);
}
.crumbs a{transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.crumbs .sep{color:#C4BFB4;}
.crumbs .now{color:var(--text);}

.page-head{padding:20px 0 34px;border-bottom:1px solid var(--hair);}
.stamp{
  display:inline-block;
  border:1px solid var(--primary);
  border-radius:4px;
  color:var(--primary);
  font-size:12px;
  letter-spacing:.12em;
  padding:3px 8px;
  line-height:1.4;
}
.page-head h1{
  font-size:clamp(27px,3.4vw,44px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.01em;
  margin:16px 0 12px;
}
.page-head .lede{
  max-width:800px;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- 数据条 ---------- */
.band{padding:64px 0;}
.band-tight{padding:36px 0 0;}
.stat-strip{
  background:var(--ink);
  border-radius:var(--r-lg);
  padding:30px 32px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.stat{padding:0 22px;border-left:1px solid var(--ink-line);}
.stat:first-child{border-left:0;padding-left:0;}
.stat b{
  display:block;
  font-size:clamp(24px,2.6vw,34px);
  font-weight:800;
  line-height:1.2;
  color:#fff;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat span{display:block;margin-top:6px;font-size:12px;letter-spacing:.08em;color:rgba(255,255,255,.62);}

/* ---------- 双栏高密度 ---------- */
.dense{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  padding:64px 0 8px;
}
@media(min-width:1024px){
  .dense{grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:40px;padding:72px 0 8px;}
}
.sect{padding:26px 0;border-top:1px solid var(--hair);}
.sect:first-child{border-top:0;padding-top:0;}
.sect h2{
  font-size:clamp(19px,2vw,25px);
  font-weight:700;
  line-height:1.4;
  padding-left:12px;
  border-left:3px solid var(--primary);
  margin-bottom:14px;
}
.sect p{margin-bottom:14px;font-size:16px;line-height:1.85;color:#2A2A31;}
.sect p:last-child{margin-bottom:0;}
.sect ul{margin:0 0 14px;}
.sect ul li{
  position:relative;
  padding-left:18px;
  margin-bottom:8px;
  font-size:15.5px;
  color:#2A2A31;
}
.sect ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.sect .inline-note{
  display:inline-block;
  font-size:13px;
  color:var(--primary);
  border-bottom:1px solid var(--primary-line);
  transition:border-color .2s var(--ease);
}
.sect .inline-note:hover{border-color:var(--accent);}

/* 右栏粘性 */
.rail{display:flex;flex-direction:column;gap:20px;}
@media(min-width:1024px){ .rail{position:sticky;top:24px;align-self:start;} }
.rail-card{
  background:var(--surface);
  border:1px solid var(--hair);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
}
.rail-card h3{
  font-size:17px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:14px;
}
.rail-card ul li{
  position:relative;
  padding-left:18px;
  margin-bottom:9px;
  font-size:14.5px;
  line-height:1.7;
  color:var(--muted);
}
.rail-card ul li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.rail-thumb{
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--hair);
  aspect-ratio:16/10;
  background:#EDEAE3;
}
.rail-thumb img{width:100%;height:100%;object-fit:cover;}
.rail-card figcaption{
  margin-top:12px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--muted);
}
.rail-nav{display:flex;flex-direction:column;padding:14px 22px 18px;}
.rail-nav h3{margin-bottom:6px;}
.rail-nav a{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;
  min-height:44px;
  font-size:14.5px;
  color:var(--muted);
  border-bottom:1px solid var(--hair);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.rail-nav a:last-child{border-bottom:0;}
.rail-nav a span{font-size:12px;color:#B9B4A9;font-variant-numeric:tabular-nums;}
.rail-nav a:hover{color:var(--primary);padding-left:4px;}
.rail-nav a:hover span{color:var(--primary);}

/* ---------- 区块标题 ---------- */
.sec-head{margin-bottom:28px;}
.sec-head h2{
  font-size:clamp(21px,2.4vw,31px);
  font-weight:700;
  line-height:1.3;
  margin:12px 0 8px;
}
.sec-head p{font-size:15px;color:var(--muted);max-width:780px;}

/* ---------- 标签胶囊墙 ---------- */
.tag-chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;
  height:36px;padding:0 15px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  letter-spacing:.04em;
  border:1px solid transparent;
  transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.chip:hover{border-color:var(--primary);transform:translateY(-2px);}
.chip:active{transform:translateY(-1px);}
.chip.on-ink{background:var(--accent);color:var(--ink);}

/* ---------- 问答折叠 ---------- */
.qa .accordion-item{
  background:var(--surface);
  border:1px solid var(--hair);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.qa .accordion-button{
  position:relative;
  width:100%;
  padding:19px 22px;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
  background:var(--surface);
  box-shadow:none;
  border:0;
  text-align:left;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.qa .accordion-button:not(.collapsed){
  background:var(--primary-soft);
  color:var(--primary);
  box-shadow:none;
}
.qa .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.qa .accordion-button:focus{box-shadow:0 0 0 2px var(--primary);z-index:2;}
.qa .accordion-button::after{
  background-image:none;
  content:"+";
  font-size:20px;
  font-weight:400;
  color:var(--primary);
  width:22px;height:22px;
  display:grid;place-items:center;
  margin-left:auto;
  transition:transform .18s var(--ease);
}
.qa .accordion-button:not(.collapsed)::after{content:"–";transform:rotate(180deg);}
.qa .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  background:var(--surface);
}

/* ---------- 咨询区 ---------- */
.apply{
  background:var(--primary-soft);
  border-radius:var(--r-lg);
  padding:clamp(26px,3.2vw,44px);
  display:grid;
  grid-template-columns:1fr;
  gap:30px;
}
@media(min-width:1024px){
  .apply{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:start;}
}
.apply h2{
  font-size:clamp(21px,2.3vw,30px);
  font-weight:700;
  line-height:1.35;
  margin:14px 0 12px;
}
.apply p.copy{font-size:15.5px;color:#3B3B45;max-width:460px;}
.tick-list{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.tick-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:#4A4A55;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.form-card{
  background:var(--surface);
  border:1px solid var(--hair);
  border-radius:var(--r-card);
  padding:clamp(20px,2.6vw,30px);
  box-shadow:var(--sh-1);
}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  margin-bottom:8px;
}
.field .req{color:var(--danger);margin-left:4px;}
.field input{
  width:100%;
  height:46px;
  padding:0 14px;
  border:1px solid var(--hair);
  border-radius:var(--r-btn);
  background:var(--surface);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:#A8A39A;}
.field input:hover{border-color:#CFC9BE;}
.field input:focus{
  outline:2px solid var(--primary);
  outline-offset:-1px;
  border-color:var(--primary);
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;
  padding:0 26px;
  border:0;
  border-radius:var(--r-btn);
  background:var(--ink);
  color:#fff;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);background:#05050A;color:#fff;}
.btn-main:active{transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:var(--ink);}
.btn-accent:hover{background:#BEED18;color:var(--ink);}
.form-submit{width:100%;margin-top:6px;}
.form-note{
  margin-top:12px;
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:80px;
  background:var(--ink);
  color:rgba(255,255,255,.82);
  padding-top:64px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:32px;
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .logo-mark{background:var(--accent);color:var(--ink);}
.foot-brand .l1{font-size:15px;font-weight:700;color:#fff;}
.foot-brand .l2{font-size:12px;font-weight:300;color:rgba(255,255,255,.6);letter-spacing:.06em;}
.foot-about{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
  max-width:300px;
}
.site-foot h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:rgba(255,255,255,.55);
  margin-bottom:16px;
}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{
  display:inline-block;
  font-size:14px;
  color:rgba(255,255,255,.7);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.foot-links a:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:4px;}
.foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.7);}
.foot-contact strong{color:#fff;font-weight:600;}
.foot-bottom{
  margin-top:48px;
  padding:20px 0 24px;
  border-top:1px solid var(--ink-line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .page-head h1{font-size:clamp(26px,3.6vw,36px);}
}
@media(max-width:1023px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-foot{padding-top:52px;}
}
@media(max-width:767px){
  .band{padding:48px 0;}
  .band-tight{padding:28px 0 0;}
  .dense{padding:48px 0 8px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0;padding:24px;}
  .stat{padding:0 16px;}
  .stat:nth-child(odd){border-left:0;padding-left:0;}
  .page-head{padding:16px 0 28px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:6px;}
  .apply{gap:24px;}
  .sect{padding:22px 0;}
}
@media(max-width:520px){
  body{font-size:15.5px;}
  .crumbs{padding-top:24px;}
  .stat b{font-size:26px;}
  .chip{height:34px;font-size:12.5px;}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition:none!important;
    animation:none!important;
    scroll-behavior:auto!important;
  }
}

/* roulang page: category4 */
:root{
  --primary:#5A2DFF;
  --primary-soft:#F0ECFF;
  --accent:#C9F227;
  --danger:#FF4D2E;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#101014;
  --text:#1B1B20;
  --muted:#6E6A63;
  --hair:#E4E0D8;
  --hair-dark:rgba(255,255,255,.12);
  --r-btn:10px;
  --r-card:14px;
  --r-lg:16px;
  --sh-1:0 1px 2px rgba(16,16,20,.04);
  --sh-2:0 12px 32px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:220px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.shell{width:100%;max-width:1200px;margin:0 auto;padding-left:clamp(20px,4vw,56px);padding-right:clamp(20px,4vw,56px)}
.sec{padding:clamp(56px,7vw,96px) 0}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--side);
  background:var(--surface);border-right:1px solid var(--hair);
  display:flex;flex-direction:column;overflow-y:auto;z-index:1040;
}
.side-logo{display:flex;align-items:center;gap:12px;height:88px;padding:0 24px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:var(--primary);color:#fff;font-weight:800;font-size:17px;flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text .l1{font-size:15px;font-weight:700;color:var(--ink)}
.logo-text .l2{font-size:12px;font-weight:300;color:var(--muted);letter-spacing:.06em}
.side-nav{display:flex;flex-direction:column;padding:8px 0}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 24px;
  font-size:15px;color:var(--muted);transition:background 200ms var(--ease),color 200ms var(--ease);
}
.side-link i{font-size:18px;line-height:1}
.side-link:hover{background:var(--primary-soft);color:var(--ink)}
.side-link.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.side-link.is-active::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary)}
.side-sep{height:1px;background:var(--hair);margin:12px 24px}
.side-mini{padding:0 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.side-mini h3{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:600;margin-bottom:2px}
.side-mini a{
  font-size:13.5px;color:var(--muted);line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color 200ms var(--ease);
}
.side-mini a:hover{color:var(--primary)}
.side-foot{padding:20px 24px 26px;flex:0 0 auto}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;align-items:center;justify-content:space-between;
  height:56px;padding:0 18px;background:var(--surface);border-bottom:1px solid var(--hair);
  position:sticky;top:0;z-index:1050;
}
.topbar .logo-text .l1{font-size:14px}
.burger{
  width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--hair);border-radius:10px;
  background:var(--surface);color:var(--ink);font-size:20px;
}
.burger:hover{border-color:var(--primary);color:var(--primary)}
.offcanvas.side-drawer{width:min(82vw,320px);background:var(--surface)}
.side-drawer .offcanvas-body{padding:0;display:flex;flex-direction:column}

/* ---------- 主内容区 ---------- */
.main-wrap{margin-left:var(--side);background:var(--bg);min-height:100vh}

/* ---------- 按钮与标签 ---------- */
.btn-main,.btn-accent,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.btn-main{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);background:#000;color:#fff}
.btn-main:active{transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(201,242,39,.28);filter:brightness(.96);color:var(--ink)}
.btn-line{background:transparent;border-color:var(--hair);color:var(--text)}
.btn-line:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{height:44px;padding:0 18px;font-size:14px}
button[disabled],.is-disabled{opacity:.4;cursor:not-allowed}

.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.08em;
}
.chip-accent{background:var(--accent);color:var(--ink)}
.chip-line{background:transparent;border:1px solid rgba(255,77,46,.5);color:var(--danger)}

.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600;
  background-image:linear-gradient(currentColor,currentColor);
  background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size 200ms var(--ease),gap 200ms var(--ease);
}
.text-link:hover{background-size:100% 1px;gap:10px}
.text-link i{font-size:16px}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,3.4vw,44px)}
.sec-title{font-size:clamp(24px,2.8vw,36px);line-height:1.25;font-weight:700;margin:14px 0 10px}
.sec-desc{color:var(--muted);font-size:15px;line-height:1.7;max-width:660px}
.sub-title{font-size:clamp(18px,1.6vw,22px);line-height:1.4;font-weight:600;margin-bottom:18px}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;display:flex;align-items:flex-end;
  min-height:clamp(320px,42vw,520px);
  background-image:linear-gradient(180deg,rgba(16,16,20,.42),rgba(16,16,20,.62)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:clamp(40px,6vw,72px) 0;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.7)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.5}
.crumb .cur{color:#fff;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner-h1{font-size:clamp(30px,4vw,48px);line-height:1.15;font-weight:800;color:#fff;letter-spacing:-.01em;max-width:900px}
.banner-sub{color:rgba(255,255,255,.78);font-size:clamp(15px,1.4vw,17px);line-height:1.7;margin-top:16px;max-width:680px}
.banner-badge{margin-bottom:18px}

/* ---------- 指标条 ---------- */
.metrics{margin-top:clamp(-56px,-4vw,-36px);position:relative;z-index:2}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.metric{padding:26px 24px;border-right:1px solid var(--hair)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:clamp(28px,2.6vw,34px);line-height:1.1;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums}
.metric span{display:block;font-size:13px;color:var(--muted);margin-top:8px;letter-spacing:.04em}
.metric p{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.7}

/* ---------- 瀑布卡片 ---------- */
.waterfall{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.wf-col{display:flex;flex-direction:column;gap:24px}
.wf-col.offset{margin-top:44px}
.wf-card{
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.wf-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(90,45,255,.3)}
.wf-media{overflow:hidden}
.wf-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 200ms var(--ease)}
.wf-card:hover .wf-media img{transform:scale(1.03)}
.wf-body{padding:22px 24px 24px}
.wf-body h3{font-size:clamp(18px,1.6vw,22px);line-height:1.4;font-weight:600;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wf-body>p{font-size:15px;color:var(--muted);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wf-spec{border-top:1px solid var(--hair);margin-bottom:16px}
.wf-spec li{display:flex;justify-content:space-between;gap:14px;font-size:13.5px;color:var(--muted);padding:9px 0;border-bottom:1px solid var(--hair)}
.wf-spec li b{color:var(--text);font-weight:600}

/* ---------- 档位梯度 ---------- */
.tier-list{display:flex;flex-direction:column;gap:2px}
.tier-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--hair)}
.tier-item:last-child{border-bottom:0}
.tier-num{
  width:34px;height:34px;flex:0 0 auto;border-radius:4px;display:grid;place-items:center;
  border:1px solid rgba(90,45,255,.35);color:var(--primary);font-size:14px;font-weight:700;
}
.tier-item h4{font-size:16.5px;font-weight:600;margin-bottom:6px}
.tier-item p{font-size:14.5px;color:var(--muted);line-height:1.75}

.check-list{display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-card);padding:8px 20px;box-shadow:var(--sh-1)}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--hair);font-size:15px;line-height:1.7}
.check-list li:last-child{border-bottom:0}
.check-list li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--primary);margin-top:10px;flex:0 0 auto}

/* ---------- FAQ ---------- */
.acc .accordion-item{border:1px solid var(--hair);border-radius:12px;margin-bottom:12px;overflow:hidden;background:var(--surface);box-shadow:var(--sh-1)}
.acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:var(--surface);padding:20px 24px;
  box-shadow:none;border-radius:12px;
}
.acc .accordion-button:not(.collapsed){background:var(--primary-soft);color:var(--primary);box-shadow:inset 3px 0 0 var(--primary)}
.acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.acc .accordion-button::after{
  content:"";width:16px;height:16px;flex:0 0 auto;margin-left:auto;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%235A2DFF' stroke-width='1.75' stroke-linecap='round'%3E%3Cpath d='M8 3v10M3 8h10'/%3E%3C/svg%3E");
  background-size:16px 16px;background-repeat:no-repeat;background-position:center;
  transition:transform 180ms var(--ease);
}
.acc .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%235A2DFF' stroke-width='1.75' stroke-linecap='round'%3E%3Cpath d='M3 8h10'/%3E%3C/svg%3E");
}
.acc .accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- 咨询转化条 ---------- */
.cta-bar{background:var(--ink);color:#fff;padding:clamp(40px,5vw,64px) 0}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);line-height:1.25;font-weight:700;color:#fff;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.8}
.cta-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.72)}
.cta-points li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);margin-top:9px;flex:0 0 auto}
.form-card{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:8px}
.field label .req{color:var(--danger);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--hair);border-radius:10px;background:var(--surface);
  font-size:15px;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.field textarea{height:auto;padding:12px 14px;resize:vertical}
.field input:hover,.field textarea:hover,.field select:hover{border-color:#C9C3B8}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}
.field .hint{font-size:13px;color:var(--muted);margin-top:8px}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:#fff;padding:clamp(48px,6vw,80px) 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.site-foot .logo-mark{background:var(--accent);color:var(--ink)}
.site-foot .logo-text .l1{color:#fff;font-size:15px;font-weight:700}
.site-foot .logo-text .l2{color:rgba(255,255,255,.6);font-size:12px;font-weight:300;letter-spacing:.06em}
.foot-about{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;max-width:320px}
.site-foot h4{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.55);font-weight:600;margin-bottom:18px}
.foot-links{display:flex;flex-direction:column;gap:12px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color 200ms var(--ease),transform 200ms var(--ease)}
.foot-links a:hover{color:#fff;transform:translateX(2px);text-decoration:underline;text-underline-offset:4px}
.foot-contact{display:flex;flex-direction:column;gap:12px}
.foot-contact span{font-size:14px;color:rgba(255,255,255,.7)}
.foot-contact strong{color:#fff;font-weight:600}
.foot-bottom{
  margin-top:clamp(32px,4vw,56px);border-top:1px solid var(--hair-dark);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){:root{--side:248px}}
@media (max-width:1399.98px){:root{--side:220px}}
@media (max-width:1199.98px) and (min-width:1024px){
  :root{--side:200px}
  .side-link{font-size:14px;padding:0 20px}
  .side-logo{padding:0 20px}
  .side-mini{padding:0 20px}
  .side-foot{padding:18px 20px 24px}
}
@media (max-width:1023.98px){
  :root{--side:0px}
  .sidebar{display:none}
  .topbar{display:flex}
  .main-wrap{margin-left:0}
  .metrics{margin-top:24px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric{border-right:0;border-bottom:1px solid var(--hair)}
  .metric:nth-child(odd){border-right:1px solid var(--hair)}
  .metric:nth-last-child(-n+2){border-bottom:0}
  .waterfall{grid-template-columns:1fr}
  .wf-col.offset{margin-top:0}
  .cta-inner{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:575.98px){
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-right:0!important;border-bottom:1px solid var(--hair)!important}
  .metric:last-child{border-bottom:0!important}
  .foot-grid{grid-template-columns:1fr}
  .form-card{padding:22px 18px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}