/* roulang page: index */
:root{
  --brand-50:#EDF3FF; --brand-100:#DCE7FB; --brand-500:#2F6FE6; --brand-600:#2459C6;
  --accent-50:#E9FBF7; --accent-100:#CBF5EC; --accent-500:#14C8A8; --accent-600:#0FA98E;
  --spark-500:#FF7A3C; --spark-600:#F26322;
  --bg:#F4F7FC; --surface:#FFFFFF; --surface2:#FBFCFE; --line:#E4EBF5;
  --ink-900:#101828; --ink-700:#344054; --ink-500:#667085; --ink-400:#98A2B3;
  --success:#12A150; --warning:#F79009; --danger:#F04438;
  --r-sm:10px; --r-md:14px; --r-lg:18px; --r-xl:24px;
  --sh1:0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
  --sh2:0 8px 24px -8px rgba(16,24,40,.12);
  --sh3:0 16px 40px -12px rgba(47,111,230,.24);
  --gap-section:88px;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--bg); color:var(--ink-700);
  font-family:Inter,Manrope,system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px; line-height:1.75; text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; cursor:pointer; }
input,select,textarea{ font:inherit; color:inherit; }
h1,h2,h3,h4{ margin:0; color:var(--ink-900); letter-spacing:-0.01em; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
.num{ font-variant-numeric:tabular-nums; }
.container{ width:100%; max-width:1200px; margin:0 auto; padding:0 40px; }
.section{ padding:var(--gap-section) 0; }
.section-tight{ padding:56px 0; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-size:12px; font-weight:600;
  letter-spacing:.04em; color:var(--brand-600); background:var(--brand-50);
  border:1px solid var(--brand-100); border-radius:999px; padding:6px 14px;
}
.h-sec{ font-size:clamp(24px,3.2vw,34px); font-weight:700; line-height:1.25; }
.sub-sec{ font-size:15px; color:var(--ink-500); margin-top:10px; }

/* ---------- 导航 ---------- */
.header-shell{
  position:sticky; top:0; z-index:50; background:rgba(244,247,252,.86);
  border-bottom:1px solid var(--line); backdrop-filter:blur(10px);
  transition:box-shadow .2s ease-out, background-color .2s ease-out, padding .2s ease-out;
  padding:12px 0;
}
.header-shell.is-scrolled{ box-shadow:var(--sh2); background:rgba(255,255,255,.92); padding:8px 0; }
.nav-card{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-xl);
  box-shadow:var(--sh1); padding:12px 16px;
}
.logo-group{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.logo-mark{
  width:40px; height:40px; border-radius:12px; display:grid; place-items:center;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  color:#fff; font-size:17px; box-shadow:var(--sh2);
}
.logo-text{ font-size:17px; font-weight:800; color:var(--ink-900); letter-spacing:-0.01em; white-space:nowrap; }
.nav-links{ display:flex; align-items:center; gap:4px; }
.nav-link{
  display:inline-flex; align-items:center; height:38px; padding:0 14px; border-radius:999px;
  font-size:14px; font-weight:600; color:var(--ink-500); position:relative;
  transition:background-color .2s ease-out, color .2s ease-out;
}
.nav-link:hover{ background:var(--brand-50); color:var(--brand-600); }
.nav-link.active{ background:var(--brand-50); color:var(--brand-600); }
.nav-link.active::after{
  content:""; position:absolute; left:14px; right:14px; bottom:4px; height:2px;
  border-radius:2px; background:var(--brand-500);
}
.nav-actions{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.burger{
  width:42px; height:42px; border-radius:var(--r-md); border:1px solid var(--line);
  background:var(--surface); color:var(--ink-700); display:grid; place-items:center;
}
.burger:hover{ border-color:var(--brand-100); color:var(--brand-600); }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 20px; border-radius:var(--r-md); border:1px solid transparent;
  font-size:15px; font-weight:600; white-space:nowrap; cursor:pointer;
  transition:transform .2s ease-out, box-shadow .2s ease-out, background-color .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.btn-primary{ background:var(--brand-500); color:#fff; box-shadow:var(--sh2); }
.btn-primary:hover{ background:var(--brand-600); transform:translateY(-1px); box-shadow:var(--sh3); }
.btn-ghost{ background:var(--surface); color:var(--brand-600); border-color:var(--brand-100); }
.btn-ghost:hover{ border-color:var(--brand-500); background:var(--brand-50); transform:translateY(-1px); }
.btn-spark{ background:var(--spark-500); color:#fff; box-shadow:var(--sh2); }
.btn-spark:hover{ background:var(--spark-600); transform:translateY(-1px); box-shadow:var(--sh3); }
.btn-light{ background:rgba(255,255,255,.92); color:var(--brand-600); border-color:rgba(255,255,255,.6); }
.btn-light:hover{ background:#fff; transform:translateY(-1px); }
.btn:active{ transform:translateY(1px); filter:saturate(.92); }
.btn-sm{ height:36px; padding:0 14px; font-size:13px; border-radius:var(--r-sm); }
.btn-text{ background:transparent; color:var(--brand-600); padding:0; height:auto; }
.btn-text:hover{ color:var(--brand-600); transform:translateX(2px); }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible{
  outline:2px solid var(--brand-500); outline-offset:2px; border-radius:var(--r-sm);
}

/* ---------- Hero ---------- */
.hero{ padding:56px 0 24px; }
.hero-grid{ display:grid; grid-template-columns:7fr 5fr; gap:40px; align-items:center; }
.hero h1{ font-size:clamp(30px,5vw,48px); font-weight:800; line-height:1.15; letter-spacing:-0.02em; margin-bottom:18px; }
.hero-lead{ font-size:17px; color:var(--ink-700); max-width:36rem; }
.hero-cta{ display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
.trust-row{ display:flex; flex-wrap:wrap; gap:22px; margin-top:30px; }
.trust-item{ display:flex; align-items:center; gap:9px; font-size:13px; font-weight:600; color:var(--ink-500); }
.trust-item i{ color:var(--accent-500); }
.hero-visual{ position:relative; }
.hero-visual::before{
  content:""; position:absolute; inset:-8%; border-radius:var(--r-xl);
  background:radial-gradient(circle at 60% 40%, rgba(47,111,230,.08), transparent 68%);
  pointer-events:none;
}
.hero-media{ position:relative; border-radius:var(--r-xl); overflow:hidden; border:1px solid var(--line); box-shadow:var(--sh2); }
.hero-media img{ width:100%; height:420px; object-fit:cover; }
.float-card{
  position:absolute; right:-12px; bottom:-18px; background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-lg); box-shadow:var(--sh2); padding:14px 18px; display:flex; align-items:center; gap:12px;
}
.float-num{ font-size:24px; font-weight:800; color:var(--brand-600); }
.float-txt{ font-size:12px; color:var(--ink-500); font-weight:600; }

/* ---------- 分类入口面板 ---------- */
.panel{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-xl);
  box-shadow:var(--sh1); padding:28px;
}
.entry-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:24px; }
.entry-item{
  display:flex; gap:12px; align-items:flex-start; padding:16px; border:1px solid var(--line);
  border-radius:var(--r-lg); background:var(--surface2);
  transition:transform .2s ease-out, border-color .2s ease-out, box-shadow .2s ease-out;
}
.entry-item:hover{ transform:translateY(-2px); border-color:var(--brand-100); box-shadow:var(--sh1); }
.entry-icon{
  width:44px; height:44px; flex:0 0 44px; border-radius:12px; display:grid; place-items:center; font-size:17px;
}
.icon-brand{ background:var(--brand-50); color:var(--brand-600); }
.icon-accent{ background:var(--accent-50); color:var(--accent-600); }
.entry-title{ font-size:15px; font-weight:600; color:var(--ink-900); }
.entry-desc{ font-size:13px; color:var(--ink-500); line-height:1.6; margin-top:2px; }

/* ---------- 内容卡片 ---------- */
.card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  box-shadow:var(--sh1); overflow:hidden;
  transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--sh3); border-color:var(--brand-100); }
.card-media{ position:relative; overflow:hidden; background:var(--brand-50); }
.card-media img{ width:100%; height:196px; object-fit:cover; transition:transform .2s ease-out; }
.card:hover .card-media img{ transform:scale(1.03); }
.badge{
  display:inline-flex; align-items:center; gap:6px; height:24px; padding:0 10px; border-radius:999px;
  font-size:12px; font-weight:600; letter-spacing:.04em;
}
.badge-brand{ background:var(--brand-50); color:var(--brand-600); }
.badge-accent{ background:var(--accent-50); color:var(--accent-600); }
.corner{
  position:absolute; top:12px; right:12px; height:24px; padding:0 10px; border-radius:999px;
  display:inline-flex; align-items:center; font-size:12px; font-weight:600; color:#fff;
}
.corner-spark{ background:var(--spark-500); }
.corner-accent{ background:var(--accent-500); }
.badge-abs{ position:absolute; top:12px; left:12px; }
.card-body{ padding:18px; }
.card-title{ font-size:16px; font-weight:700; line-height:1.45; color:var(--ink-900); }
.card-desc{ font-size:13px; color:var(--ink-500); line-height:1.7; margin-top:8px; }
.point-list{ margin-top:12px; display:grid; gap:6px; }
.point-list li{ display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--ink-500); }
.point-list i{ color:var(--accent-500); font-size:11px; }
.card-foot{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  margin-top:16px; padding-top:14px; border-top:1px solid var(--line);
}
.meta-num{ font-size:13px; font-weight:600; color:var(--ink-500); }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; margin-bottom:28px; }

/* ---------- 保障条 ---------- */
.assure{
  display:grid; grid-template-columns:repeat(4,1fr); background:var(--surface);
  border:1px solid var(--line); border-radius:var(--r-xl); box-shadow:var(--sh1); overflow:hidden;
}
.assure-item{ padding:26px 22px; border-right:1px solid var(--line); }
.assure-item:last-child{ border-right:none; }
.assure-item i{ font-size:19px; color:var(--brand-500); }
.assure-item h4{ font-size:15px; font-weight:700; margin:12px 0 6px; }
.assure-item p{ font-size:13px; color:var(--ink-500); line-height:1.7; }

/* ---------- 评价轮播 ---------- */
.review-wrap{ position:relative; }
.review-track{
  display:flex; gap:24px; overflow-x:auto; scroll-snap-type:x mandatory;
  padding:4px 4px 20px; scrollbar-width:none;
}
.review-track::-webkit-scrollbar{ display:none; }
.review-card{
  flex:0 0 calc((100% - 48px)/3); scroll-snap-align:start; background:var(--surface);
  border:1px solid var(--line); border-radius:var(--r-lg); box-shadow:var(--sh1); padding:22px;
}
.avatar{
  width:40px; height:40px; border-radius:50%; display:grid; place-items:center;
  background:var(--brand-50); color:var(--brand-600); font-weight:700; font-size:14px;
}
.stars{ color:var(--spark-500); font-size:12px; letter-spacing:2px; }
.review-text{ font-size:14px; color:var(--ink-700); line-height:1.8; margin-top:12px; min-height:76px; }
.review-foot{
  display:flex; align-items:center; justify-content:space-between; margin-top:14px;
  padding-top:12px; border-top:1px solid var(--line); font-size:12px; color:var(--ink-400);
}
.carousel-arrow{
  position:absolute; top:42%; width:44px; height:44px; border-radius:50%;
  background:var(--surface); border:1px solid var(--line); box-shadow:var(--sh2);
  display:grid; place-items:center; color:var(--ink-700); z-index:10;
  transition:color .2s ease-out, border-color .2s ease-out, transform .2s ease-out;
}
.carousel-arrow:hover{ color:var(--brand-600); border-color:var(--brand-100); transform:scale(1.05); }
.carousel-arrow.prev{ left:-14px; }
.carousel-arrow.next{ right:-14px; }
.carousel-dots{ display:flex; justify-content:center; gap:8px; margin-top:8px; }
.dot{ width:22px; height:4px; border-radius:999px; background:var(--line); transition:background-color .2s ease-out, width .2s ease-out; }
.dot.active{ background:var(--brand-500); width:34px; }

/* ---------- FAQ ---------- */
.faq-list{ display:grid; gap:14px; max-width:920px; margin:0 auto; }
.faq-item{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); box-shadow:var(--sh1); overflow:hidden; transition:border-color .2s ease-out; }
.faq-item.open{ border-color:var(--brand-100); }
.faq-q{
  width:100%; background:transparent; border:none; text-align:left; display:flex; align-items:center;
  justify-content:space-between; gap:16px; padding:20px 22px; font-size:16px; font-weight:600; color:var(--ink-900);
}
.faq-q i{ color:var(--brand-500); transition:transform .2s ease-out; font-size:14px; }
.faq-item.open .faq-q i{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease-out; }
.faq-a p{ padding:0 22px 22px; font-size:15px; line-height:1.85; color:var(--ink-700); }

/* ---------- CTA ---------- */
.cta-card{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  border-radius:var(--r-xl); padding:48px; display:flex; align-items:center;
  justify-content:space-between; gap:32px; box-shadow:var(--sh3); position:relative; overflow:hidden;
}
.cta-card::after{
  content:""; position:absolute; right:-60px; top:-60px; width:280px; height:280px; border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-card h2{ color:#fff; font-size:clamp(22px,3vw,32px); font-weight:700; }
.cta-card p{ color:rgba(255,255,255,.86); font-size:15px; margin-top:10px; max-width:34rem; }
.cta-actions{ display:flex; gap:12px; flex-wrap:wrap; position:relative; z-index:2; }

/* ---------- 页脚 ---------- */
.footer{ background:var(--surface); border-top:1px solid var(--line); padding:64px 0 0; margin-top:var(--gap-section); }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:36px; }
.footer h5{ font-size:14px; font-weight:700; color:var(--ink-900); margin:0 0 16px; }
.footer-link{ display:block; font-size:14px; color:var(--ink-500); padding:5px 0; transition:color .2s ease-out; }
.footer-link:hover{ color:var(--brand-600); }
.footer-brand-desc{ font-size:14px; color:var(--ink-500); line-height:1.8; margin-top:14px; }
.social-row{ display:flex; gap:10px; margin-top:18px; }
.social-btn{
  width:38px; height:38px; border-radius:12px; border:1px solid var(--line); background:var(--surface2);
  display:grid; place-items:center; color:var(--ink-500);
  transition:color .2s ease-out, border-color .2s ease-out, transform .2s ease-out;
}
.social-btn:hover{ color:var(--brand-600); border-color:var(--brand-100); transform:translateY(-2px); }
.copyright{
  margin-top:48px; background:var(--ink-900); color:rgba(255,255,255,.78);
  font-size:12px; padding:18px 0;
}
.copyright .container{ display:flex; flex-wrap:wrap; gap:10px 20px; align-items:center; justify-content:space-between; }

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed; inset:0; background:rgba(16,24,40,.45); z-index:60; opacity:0;
  pointer-events:none; transition:opacity .2s ease-out;
}
.drawer.open{ opacity:1; pointer-events:auto; }
.drawer-panel{
  position:absolute; top:0; right:0; width:min(88%,360px); height:100%; background:var(--bg);
  padding:18px; display:flex; flex-direction:column; gap:12px; transform:translateX(100%);
  transition:transform .25s ease-out; overflow-y:auto;
}
.drawer.open .drawer-panel{ transform:translateX(0); }
.drawer-item{
  display:flex; align-items:center; gap:12px; background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-md); padding:12px; font-size:15px; font-weight:600; color:var(--ink-900);
}
.drawer-item .entry-icon{ width:40px; height:40px; flex:0 0 40px; }
.drawer-item .arrow{ margin-left:auto; color:var(--ink-400); }

/* ---------- CMS 卡片 ---------- */
.cms-card{ display:flex; flex-direction:column; height:100%; }
.cms-card .card-body{ display:flex; flex-direction:column; flex:1; }
.cms-title{ font-size:16px; font-weight:700; line-height:1.45; color:var(--ink-900); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.cms-sum{ font-size:13px; color:var(--ink-500); line-height:1.7; margin-top:8px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.cms-meta{ margin-top:auto; display:flex; align-items:center; justify-content:space-between; padding-top:14px; border-top:1px solid var(--line); font-size:12px; color:var(--ink-400); }
.empty-state{
  grid-column:1 / -1; min-height:240px; border:1px dashed var(--line); border-radius:var(--r-lg);
  background:var(--surface); display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:10px; text-align:center; padding:32px;
}
.empty-state i{ font-size:56px; color:var(--ink-400); }
.empty-state strong{ font-size:15px; color:var(--ink-700); }
.empty-state span{ font-size:13px; color:var(--ink-500); }

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .carousel-arrow.prev{ left:-6px; }
  .carousel-arrow.next{ right:-6px; }
}
@media (max-width:1024px){
  :root{ --gap-section:64px; }
  .container{ padding:0 24px; }
  .hero-grid{ grid-template-columns:1fr; gap:32px; }
  .hero-media img{ height:320px; }
  .entry-grid{ grid-template-columns:repeat(3,1fr); }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
  .assure{ grid-template-columns:repeat(2,1fr); }
  .assure-item:nth-child(2){ border-right:none; }
  .assure-item:nth-child(1),.assure-item:nth-child(2){ border-bottom:1px solid var(--line); }
  .review-card{ flex:0 0 calc((100% - 24px)/2); }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; }
  .cta-card{ flex-direction:column; align-items:flex-start; padding:36px; }
}
@media (max-width:768px){
  :root{ --gap-section:48px; }
  .container{ padding:0 16px; }
  .nav-card{ padding:10px 12px; }
  .logo-text{ font-size:15px; }
  .entry-grid{ grid-template-columns:repeat(2,1fr); }
  .grid-3{ grid-template-columns:1fr; }
  .hero-cta .btn{ flex:1 1 auto; }
  .float-card{ right:8px; bottom:-14px; padding:12px 14px; }
  .review-card{ flex:0 0 84%; }
  .carousel-arrow{ display:none; }
  .footer-grid{ grid-template-columns:1fr; }
  .cta-card{ padding:28px; }
}
@media (max-width:520px){
  .entry-grid{ grid-template-columns:1fr; }
  .assure{ grid-template-columns:1fr; }
  .assure-item{ border-right:none; border-bottom:1px solid var(--line); }
  .assure-item:last-child{ border-bottom:none; }
  .hero-media img{ height:240px; }
  .section-head{ flex-direction:column; align-items:flex-start; }
}
@media (prefers-reduced-motion:reduce){
  *{ transition:none !important; animation:none !important; }
  html{ scroll-behavior:auto; }
}

/* roulang page: article */
:root{
  --brand-050:#EDF3FF;
  --brand-100:#DCE7FB;
  --brand-500:#2F6FE6;
  --brand-600:#2459C6;
  --accent-500:#14C8A8;
  --accent-600:#0FA98E;
  --spark-500:#FF7A3C;
  --spark-600:#F26322;
  --bg:#F4F7FC;
  --surface:#FFFFFF;
  --surface2:#FBFCFE;
  --line:#E4EBF5;
  --ink-900:#101828;
  --ink-700:#344054;
  --ink-500:#667085;
  --ink-400:#98A2B3;
  --success:#12A150;
  --warning:#F79009;
  --danger:#F04438;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --shadow-1:0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
  --shadow-2:0 8px 24px -8px rgba(16,24,40,.12);
  --shadow-3:0 16px 40px -12px rgba(47,111,230,.24);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:Inter,Manrope,system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
::selection{background:var(--brand-100);color:var(--brand-600)}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
@media (max-width:1024px){.container{padding:0 24px}}
@media (max-width:640px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.header-shell{
  position:sticky;top:0;z-index:50;
  background:rgba(244,247,252,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(8px);
  transition:box-shadow .2s ease-out, background-color .2s ease-out;
}
.header-shell.is-scrolled{box-shadow:0 10px 30px -18px rgba(16,24,40,.28);background:rgba(255,255,255,.94)}
.nav-card{
  margin:12px 0;
  display:flex;align-items:center;gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--shadow-1);
  padding:12px 16px;
  transition:box-shadow .2s ease-out;
}
.header-shell.is-scrolled .nav-card{box-shadow:var(--shadow-2)}
.logo-group{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  color:#fff;font-size:18px;box-shadow:var(--shadow-2);
}
.logo-text{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto}
.nav-link{
  padding:9px 14px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-700);
  transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
  position:relative;white-space:nowrap;
}
.nav-link:hover{background:var(--brand-050);color:var(--brand-600)}
.nav-link.active{background:var(--brand-050);color:var(--brand-600)}
.nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:18px;height:2px;border-radius:2px;background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px);filter:saturate(.92)}
.btn-primary{background:var(--brand-500);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{background:var(--brand-600);box-shadow:var(--shadow-3)}
.btn-spark{background:var(--spark-500);color:#fff;box-shadow:var(--shadow-2)}
.btn-spark:hover{background:var(--spark-600);box-shadow:0 16px 40px -12px rgba(242,99,34,.35)}
.btn-ghost{background:var(--surface);color:var(--brand-600);border-color:var(--brand-100)}
.btn-ghost:hover{background:var(--brand-050);border-color:var(--brand-500)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px;padding:6px 2px}
.btn-text:hover{color:var(--brand-600);gap:10px}
.btn-text i{font-size:12px;transition:transform .2s ease-out}
.btn-text:hover i{transform:translateX(2px)}
.burger{
  width:42px;height:42px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);
}
.burger:hover{border-color:var(--brand-100);background:var(--brand-050);color:var(--brand-600)}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(16,24,40,.35);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,88vw);
  background:var(--bg);padding:16px;overflow-y:auto;
  display:flex;flex-direction:column;gap:14px;
  transform:translateX(100%);transition:transform .2s ease-out;
  box-shadow:-16px 0 40px -20px rgba(16,24,40,.35);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:12px;box-shadow:var(--shadow-1)}
.drawer-item{
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:12px;box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.drawer-item:hover{transform:translateY(-2px);border-color:var(--brand-100)}
.drawer-item .ico{width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand-050);color:var(--brand-600)}
.drawer-item .ico.alt{background:#E6FAF5;color:var(--accent-600)}
.drawer-item .txt{flex:1 1 auto;font-weight:600;color:var(--ink-900);font-size:15px}
.drawer-item .arr{color:var(--ink-400);font-size:13px}
.drawer-foot{margin-top:auto}

/* ---------- 通用 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--brand-050);color:var(--brand-600);
}
.badge-accent{background:#E6FAF5;color:var(--accent-600)}
.badge-spark{background:var(--spark-500);color:#fff}
.badge-soft{background:var(--surface2);color:var(--ink-500);border:1px solid var(--line)}
.section{padding:88px 0}
@media (max-width:1024px){.section{padding:64px 0}}
@media (max-width:640px){.section{padding:48px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25}
.section-head .sub{margin-top:8px;color:var(--ink-500);font-size:15px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:var(--brand-100)}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding-top:28px}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-500);
  overflow-x:auto;white-space:nowrap;scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:var(--ink-400)}
.crumb .now{color:var(--ink-500);max-width:52ch;overflow:hidden;text-overflow:ellipsis}

/* ---------- 文章头部 ---------- */
.article-head{padding:24px 0 0}
.article-head h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.18;letter-spacing:-.02em;font-weight:800;
  margin-top:14px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:14px;color:var(--ink-500)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-400)}
.meta-author{display:inline-flex;align-items:center;gap:8px}
.meta-author .av{width:28px;height:28px;border-radius:50%;background:var(--brand-050);color:var(--brand-600);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.cover-wrap{
  margin-top:24px;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-2);aspect-ratio:16/9;background:var(--surface2);
}
.cover-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.cover-wrap:hover img{transform:scale(1.03)}

/* ---------- 阅读布局 ---------- */
.read-layout{display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:start;padding:56px 0 88px}
@media (max-width:1024px){.read-layout{grid-template-columns:1fr;gap:24px;padding:40px 0 64px}}
.paper{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--shadow-1);padding:36px;
}
@media (max-width:640px){.paper{padding:22px 18px}}
.prose-cms{font-size:17px;line-height:1.9;color:var(--ink-700);max-width:44rem}
.prose-cms > * + *{margin-top:1.25em}
.prose-cms h2{
  position:relative;padding-left:14px;font-size:clamp(21px,2.4vw,27px);line-height:1.35;
  margin-top:1.8em;letter-spacing:-.01em;
}
.prose-cms h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:20px;border-radius:2px;background:var(--brand-500);
}
.prose-cms h3{font-size:19px;font-weight:600;margin-top:1.5em}
.prose-cms h4{font-size:17px;font-weight:600;margin-top:1.3em}
.prose-cms ul{list-style:none;padding-left:2px}
.prose-cms ul li{position:relative;padding-left:18px}
.prose-cms ul li + li{margin-top:.5em}
.prose-cms ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--brand-500);
}
.prose-cms ol{padding-left:1.4em}
.prose-cms ol li + li{margin-top:.5em}
.prose-cms blockquote{
  border-left:3px solid var(--brand-500);background:var(--brand-050);
  border-radius:var(--r-md);padding:16px 20px;color:var(--ink-700);
}
.prose-cms blockquote p{margin:0}
.prose-cms img{border-radius:var(--r-md);margin:1.5em auto;height:auto}
.prose-cms figure figcaption,
.prose-cms .caption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:8px}
.prose-cms a{color:var(--brand-600);border-bottom:1px dashed var(--brand-600)}
.prose-cms a:hover{border-bottom-style:solid}
.prose-cms table{width:100%;border-collapse:collapse;border:1px solid var(--line);font-size:15px;border-radius:var(--r-md);overflow:hidden}
.prose-cms th,.prose-cms td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}
.prose-cms th{background:var(--brand-050);font-weight:600;color:var(--ink-900)}
.prose-cms code{background:var(--surface2);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px}
.prose-cms hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* 空态 */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--surface2);
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:32px 24px;gap:10px;
}
.empty-state i{font-size:64px;color:var(--ink-400)}
.empty-state strong{font-size:15px;font-weight:600;color:var(--ink-700)}
.empty-state span{font-size:13px;color:var(--ink-500);max-width:34ch}

/* 文末 */
.after-article{margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  background:var(--brand-050);color:var(--brand-600);font-size:13px;font-weight:600;
  border:1px solid transparent;transition:background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.tag:hover{background:#fff;border-color:var(--brand-100);transform:translateY(-2px)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:22px}
.share-btns{display:flex;align-items:center;gap:10px}
.share-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);font-size:15px;
  transition:transform .2s ease-out,border-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
}
.share-btn:hover{transform:translateY(-2px);border-color:var(--brand-500);color:var(--brand-600);box-shadow:var(--shadow-2)}

/* 侧栏 */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
@media (max-width:1024px){.side-col{position:static}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:20px}
.side-card h4{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px}
.side-card h4 i{color:var(--brand-500);font-size:14px}
.side-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--r-sm);background:var(--surface2);
  border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-700);
  transition:background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.side-list a:hover{background:var(--brand-050);border-color:var(--brand-100);color:var(--brand-600);transform:translateY(-2px)}
.side-list a i{font-size:11px;color:var(--ink-400)}
.mini-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line)}
.mini-post:last-child{border-bottom:0;padding-bottom:0}
.mini-post .thumb{width:76px;height:56px;border-radius:var(--r-sm);overflow:hidden;flex:0 0 auto;border:1px solid var(--line)}
.mini-post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.mini-post:hover .thumb img{transform:scale(1.03)}
.mini-post .t{font-size:14px;font-weight:600;color:var(--ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-post .d{font-size:12px;color:var(--ink-400);margin-top:4px}
.side-cta{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  border-radius:var(--r-lg);padding:22px;color:#fff;box-shadow:var(--shadow-2);
}
.side-cta h4{color:#fff;font-size:17px}
.side-cta p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.86);margin-top:8px}
.side-cta .btn{margin-top:16px;width:100%}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:1024px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.rel-grid{grid-template-columns:1fr}}
.rel-card{display:flex;gap:14px;padding:14px;align-items:center}
.rel-card .thumb{width:96px;height:72px;border-radius:var(--r-sm);overflow:hidden;flex:0 0 auto;border:1px solid var(--line)}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .t{font-size:15px;font-weight:700;color:var(--ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .d{font-size:12px;color:var(--ink-400);margin-top:6px}

/* CTA 横幅 */
.cta-band{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  border-radius:var(--r-xl);padding:40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-2);
}
@media (max-width:768px){.cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px)}
.cta-band p{color:rgba(255,255,255,.86);margin-top:10px;font-size:15px;max-width:52ch}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-ghost-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost-light:hover{background:rgba(255,255,255,.24);border-color:#fff}

/* 页脚 */
.footer{margin-top:24px;background:var(--surface);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 40px}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;padding:36px 0 24px}}
.footer-grid h5{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:14px;letter-spacing:.02em}
.footer-brand-desc{font-size:14px;color:var(--ink-500);line-height:1.85;margin-top:14px;max-width:38ch}
.footer-link{display:block;font-size:14px;color:var(--ink-500);padding:5px 0;transition:color .2s ease-out,transform .2s ease-out}
.footer-link:hover{color:var(--brand-600);transform:translateX(2px)}
.social-row{display:flex;gap:10px;margin-top:16px}
.social-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--surface2);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-700);
  transition:transform .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.social-btn:hover{transform:translateY(-2px);border-color:var(--brand-500);color:var(--brand-600)}
.copyright{background:var(--ink-900);color:rgba(255,255,255,.72);font-size:12px}
.copyright .container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap}
.copyright span{color:rgba(255,255,255,.72)}

.to-top{
  position:fixed;right:24px;bottom:24px;z-index:40;
  width:44px;height:44px;border-radius:50%;background:var(--surface);border:1px solid var(--line);
  color:var(--brand-600);box-shadow:var(--shadow-2);display:inline-flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out,transform .2s ease-out;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px);border-color:var(--brand-100)}
@media (max-width:640px){.to-top{right:14px;bottom:14px}}

/* roulang page: category1 */
:root{
    --brand-050:#EDF3FF; --brand-100:#DCE7FB; --brand-500:#2F6FE6; --brand-600:#2459C6;
    --accent-500:#14C8A8; --accent-600:#0FA98E; --accent-050:#E6FAF6;
    --spark-500:#FF7A3C; --spark-600:#F26322;
    --bg:#F4F7FC; --surface:#FFFFFF; --surface2:#FBFCFE; --line:#E4EBF5;
    --ink-900:#101828; --ink-700:#344054; --ink-500:#667085; --ink-400:#98A2B3;
    --success:#12A150; --warning:#F79009; --danger:#F04438;
    --r-sm:10px; --r-md:14px; --r-lg:18px; --r-xl:24px;
    --shadow-1:0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
    --shadow-2:0 8px 24px -8px rgba(16,24,40,.12);
    --shadow-3:0 16px 40px -12px rgba(47,111,230,.24);
    --ease:200ms ease-out;
    --section-y:88px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;background:var(--bg);color:var(--ink-700);
    font-family:Inter,Manrope,system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease)}
  img{max-width:100%;display:block}
  button,input,select,textarea{font:inherit;color:inherit}
  button{cursor:pointer;background:none;border:0}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
  @media (max-width:1024px){.container{padding:0 24px}}
  @media (max-width:640px){.container{padding:0 16px}}

  /* ---------- Header ---------- */
  .header-shell{
    position:sticky;top:0;z-index:50;padding:12px 0;
    background:rgba(244,247,252,.86);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);transition:box-shadow var(--ease),background-color var(--ease);
  }
  .header-shell.scrolled{background:rgba(244,247,252,.94);box-shadow:0 6px 20px -14px rgba(16,24,40,.25)}
  .nav-card{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
    padding:12px 16px;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),border-color var(--ease);
  }
  .header-shell.scrolled .nav-card{box-shadow:var(--shadow-2)}
  .logo-group{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
    background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
    color:#fff;font-size:16px;box-shadow:0 6px 16px -8px rgba(47,111,230,.7);
  }
  .logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);white-space:nowrap}
  .nav-links{align-items:center;gap:4px}
  .nav-link{
    position:relative;padding:8px 14px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-700);white-space:nowrap;
  }
  .nav-link:hover{background:var(--brand-050);color:var(--brand-600)}
  .nav-link.active{background:var(--brand-050);color:var(--brand-600)}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
    width:18px;height:2px;border-radius:2px;background:var(--brand-500)
  }
  .nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .burger{
    width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface2);
    color:var(--ink-700);display:grid;place-items:center;font-size:16px;transition:all var(--ease);
  }
  .burger:hover{border-color:var(--brand-100);color:var(--brand-600);background:var(--brand-050)}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 20px;border-radius:var(--r-md);border:1px solid transparent;
    font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;white-space:nowrap;
    transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  }
  .btn:active{transform:translateY(1px) scale(.995)}
  .btn-primary{background:var(--brand-500);color:#fff;box-shadow:var(--shadow-2)}
  .btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:var(--shadow-3)}
  .btn-spark{background:var(--spark-500);color:#fff;box-shadow:0 10px 24px -10px rgba(255,122,60,.65)}
  .btn-spark:hover{background:var(--spark-600);transform:translateY(-1px)}
  .btn-ghost{background:var(--surface);color:var(--brand-600);border-color:var(--brand-100)}
  .btn-ghost:hover{background:var(--brand-050);border-color:var(--brand-500)}
  .btn-outline{background:var(--surface);color:var(--ink-700);border-color:var(--line)}
  .btn-outline:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--brand-050)}
  .btn-white{background:#fff;color:var(--brand-600);box-shadow:var(--shadow-2)}
  .btn-white:hover{background:#F2F6FF;transform:translateY(-1px)}
  .btn-ghost-white{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5)}
  .btn-ghost-white:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}
  .btn-sm{padding:9px 14px;font-size:14px;border-radius:12px}
  .btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
  .btn-text:hover{color:var(--brand-500);gap:10px}
  .btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

  /* ---------- Sections ---------- */
  .section{padding:var(--section-y) 0}
  .section-tight{padding:0 0 var(--section-y)}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
  .section-title{font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--ink-900)}
  .section-desc{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:56rem}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
    background:var(--brand-050);color:var(--brand-600);font-size:12px;font-weight:600;letter-spacing:.04em;
  }
  @media (max-width:1024px){:root{--section-y:64px}}
  @media (max-width:640px){:root{--section-y:48px}.section-head{flex-direction:column;align-items:flex-start;gap:14px}}

  /* ---------- Badges ---------- */
  .badge{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em}
  .badge-brand{background:var(--brand-050);color:var(--brand-600)}
  .badge-accent{background:var(--accent-500);color:#fff}
  .badge-spark{background:var(--spark-500);color:#fff}
  .badge-soft{background:var(--accent-050);color:var(--accent-600)}

  /* ---------- Category banner ---------- */
  .cat-banner{
    position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);
    background:var(--surface);box-shadow:var(--shadow-1);min-height:236px;
    padding:36px 40px;display:flex;align-items:center;
  }
  .banner-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center right;opacity:.16}
  .banner-veil{position:absolute;inset:0;background:linear-gradient(90deg,#fff 34%,rgba(255,255,255,.72) 66%,rgba(255,255,255,.28) 100%)}
  .banner-inner{position:relative;z-index:1;max-width:760px}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-500);white-space:nowrap;overflow-x:auto;padding-bottom:2px}
  .breadcrumb a:hover{color:var(--brand-600)}
  .breadcrumb .sep{color:var(--ink-400)}
  .breadcrumb .current{color:var(--ink-500)}
  .cat-banner h1{
    margin-top:16px;font-size:clamp(30px,5vw,48px);font-weight:800;line-height:1.15;
    letter-spacing:-.02em;color:var(--ink-900);
  }
  .banner-sub{margin-top:14px;font-size:16px;color:var(--ink-700);max-width:44rem}
  .banner-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px}
  @media (max-width:640px){.cat-banner{padding:26px 20px;min-height:auto}}

  /* ---------- Toolbar ---------- */
  .toolbar{
    display:flex;align-items:center;gap:10px;flex-wrap:nowrap;overflow-x:auto;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:12px 16px;box-shadow:var(--shadow-1);scrollbar-width:thin;
  }
  .toolbar::-webkit-scrollbar{height:6px}
  .toolbar::-webkit-scrollbar-thumb{background:var(--brand-100);border-radius:999px}
  .chip{
    flex:0 0 auto;padding:8px 14px;border-radius:999px;font-size:14px;font-weight:600;
    color:var(--ink-500);border:1px solid var(--line);background:var(--surface2);transition:all var(--ease)
  }
  .chip:hover{border-color:var(--brand-100);color:var(--brand-600)}
  .chip.active{background:var(--brand-050);border-color:var(--brand-100);color:var(--brand-600)}
  .toolbar-divider{flex:0 0 auto;width:1px;height:22px;background:var(--line);margin:0 4px}
  .view-btn{
    flex:0 0 auto;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
    display:grid;place-items:center;color:var(--ink-500);background:var(--surface2);transition:all var(--ease)
  }
  .view-btn:hover{border-color:var(--brand-100);color:var(--brand-600)}
  .view-btn.active{background:var(--brand-050);border-color:var(--brand-100);color:var(--brand-600)}

  /* ---------- Entry grid cards ---------- */
  .entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  @media (max-width:1024px){.entry-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
  @media (max-width:640px){.entry-grid{grid-template-columns:1fr}}
  .entry-card{
    display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);
    transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:var(--brand-100)}
  .entry-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--brand-050)}
  .entry-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
  .entry-card:hover .entry-media img{transform:scale(1.03)}
  .media-badge{position:absolute;left:12px;top:12px}
  .media-corner{position:absolute;right:12px;top:12px;padding:5px 11px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;color:#fff;background:var(--spark-500)}
  .media-corner.accent{background:var(--accent-500)}
  .entry-body{padding:18px;display:flex;flex-direction:column;gap:12px;flex:1}
  .entry-title{
    font-size:17px;font-weight:700;line-height:1.45;color:var(--ink-900);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .entry-points{display:flex;flex-direction:column;gap:7px;font-size:13px;color:var(--ink-500);line-height:1.6}
  .entry-points li{display:flex;gap:8px;align-items:flex-start}
  .dot{flex:0 0 auto;width:5px;height:5px;border-radius:50%;background:var(--accent-500);margin-top:8px}
  .entry-foot{
    margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
    border-top:1px solid var(--line);padding-top:14px;
  }
  .entry-param{font-size:13px;font-weight:600;color:var(--ink-500)}
  .entry-param .hl{color:var(--spark-600)}

  /* ---------- Panel ---------- */
  .panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);padding:28px;box-shadow:var(--shadow-1)}
  .panel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:22px}
  @media (max-width:1024px){.panel-grid{grid-template-columns:repeat(3,1fr)}}
  @media (max-width:640px){.panel-grid{grid-template-columns:repeat(2,1fr);gap:12px}.panel{padding:20px}}
  .panel-cell{
    display:flex;gap:12px;align-items:flex-start;padding:14px;border:1px solid var(--line);
    border-radius:var(--r-md);background:var(--surface2);
    transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
  }
  .panel-cell:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-1);background:#fff}
  .cell-icon{flex:0 0 auto;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:17px}
  .icon-brand{background:var(--brand-050);color:var(--brand-600)}
  .icon-accent{background:var(--accent-050);color:var(--accent-600)}
  .cell-title{font-size:15px;font-weight:600;color:var(--ink-900);line-height:1.4}
  .cell-desc{font-size:13px;color:var(--ink-500);line-height:1.55;margin-top:2px}

  /* ---------- Guard strip ---------- */
  .guard{
    display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--brand-050);
    border:1px solid var(--brand-100);border-radius:var(--r-lg);overflow:hidden
  }
  .guard-item{padding:24px 22px;display:flex;gap:14px;align-items:flex-start}
  .guard-item + .guard-item{border-left:1px solid var(--brand-100)}
  .guard-icon{flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:#fff;color:var(--brand-600);display:grid;place-items:center;font-size:16px;box-shadow:var(--shadow-1)}
  .guard-title{font-size:15px;font-weight:700;color:var(--ink-900)}
  .guard-desc{font-size:13px;color:var(--ink-500);line-height:1.6;margin-top:4px}
  @media (max-width:1024px){.guard{grid-template-columns:repeat(2,1fr)}.guard-item{border-left:0 !important}.guard-item:nth-child(odd){border-right:1px solid var(--brand-100)}.guard-item:nth-child(n+3){border-top:1px solid var(--brand-100)}}
  @media (max-width:640px){.guard{grid-template-columns:1fr}.guard-item:nth-child(odd){border-right:0}.guard-item + .guard-item{border-top:1px solid var(--brand-100)}}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:14px}
  .faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
  .faq-item.open{border-color:var(--brand-100);box-shadow:var(--shadow-2)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink-900);text-align:left;line-height:1.5
  }
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-050);color:var(--brand-600);
    display:grid;place-items:center;font-size:12px;transition:transform var(--ease),background-color var(--ease)
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-500);color:#fff}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease-out}
  .faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-700)}

  /* ---------- CTA ---------- */
  .cta-block{
    display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
    border-radius:var(--r-xl);padding:40px;color:#fff;box-shadow:0 18px 40px -18px rgba(47,111,230,.6)
  }
  .cta-block h2{font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
  .cta-block p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:38rem}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
  @media (max-width:640px){.cta-block{padding:26px 20px;flex-direction:column;align-items:flex-start}}

  /* ---------- Drawer ---------- */
  .drawer{
    position:fixed;inset:0;z-index:80;background:rgba(16,24,40,.42);
    opacity:0;pointer-events:none;transition:opacity var(--ease)
  }
  .drawer.open{opacity:1;pointer-events:auto}
  .drawer-panel{
    position:absolute;right:0;top:0;height:100%;width:min(360px,90vw);background:var(--bg);
    padding:20px;display:flex;flex-direction:column;gap:14px;transform:translateX(100%);
    transition:transform 240ms ease-out;overflow-y:auto
  }
  .drawer.open .drawer-panel{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:4px 4px 10px}
  .drawer-item{
    display:flex;align-items:center;gap:12px;padding:14px;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-md);box-shadow:var(--shadow-1);font-weight:600;color:var(--ink-900)
  }
  .drawer-item:hover{border-color:var(--brand-100);transform:translateY(-2px)}
  .drawer-item .arrow{margin-left:auto;color:var(--ink-400);font-size:13px}
  .drawer-foot{margin-top:auto;padding-top:16px}

  /* ---------- Footer ---------- */
  .footer{background:var(--surface);border-top:1px solid var(--line);margin-top:var(--section-y)}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.15fr;gap:32px;padding:56px 0 40px}
  @media (max-width:1024px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:28px;padding:44px 0 32px}}
  @media (max-width:640px){.footer-grid{grid-template-columns:1fr;padding:36px 0 26px}}
  .footer h5{font-size:14px;font-weight:700;color:var(--ink-900);letter-spacing:.02em;margin-bottom:14px}
  .footer-brand-desc{font-size:14px;color:var(--ink-500);line-height:1.75;margin-top:14px;max-width:30rem}
  .footer-link{display:block;font-size:14px;color:var(--ink-500);padding:5px 0}
  .footer-link:hover{color:var(--brand-600)}
  .social-row{display:flex;gap:10px;margin-top:18px}
  .social-btn{
    width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:var(--surface2);
    display:grid;place-items:center;color:var(--ink-500);transition:all var(--ease)
  }
  .social-btn:hover{color:var(--brand-600);border-color:var(--brand-100);background:var(--brand-050);transform:translateY(-2px)}
  .copyright{background:#101828;padding:14px 0}
  .copyright .container{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
  .copyright span{font-size:12px;color:rgba(255,255,255,.7);letter-spacing:.01em}

  /* ---------- Misc ---------- */
  .rich-text p{font-size:15px;line-height:1.85;color:var(--ink-700)}
  .stat-row{display:flex;gap:28px;flex-wrap:wrap;margin-top:22px}
  .stat-num{font-size:22px;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums}
  .stat-label{font-size:13px;color:var(--ink-500);margin-top:2px}
  ::selection{background:var(--brand-100);color:var(--brand-600)}

/* roulang page: category2 */
:root{
  --brand-500:#2F6FE6;--brand-600:#2459C6;--brand-050:#EDF3FF;--brand-100:#DCE7FB;
  --accent-500:#14C8A8;--accent-600:#0FA98E;--accent-050:#E7FAF6;
  --spark-500:#FF7A3C;--spark-600:#F26322;
  --bg:#F4F7FC;--surface:#FFFFFF;--surface2:#FBFCFE;--line:#E4EBF5;
  --ink-900:#101828;--ink-700:#344054;--ink-500:#667085;--ink-400:#98A2B3;
  --success:#12A150;--warning:#F79009;--danger:#F04438;
  --r-sm:10px;--r-md:14px;--r-lg:18px;--r-xl:24px;--r-pill:999px;
  --sh1:0 1px 2px rgba(16,24,40,.04),0 1px 3px rgba(16,24,40,.06);
  --sh2:0 8px 24px -8px rgba(16,24,40,.12);
  --sh3:0 16px 40px -12px rgba(47,111,230,.24);
  --ease:200ms ease-out;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink-700);
  font-family:Inter,Manrope,system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
::selection{background:var(--brand-100);color:var(--brand-600)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#CFDBEC;border-radius:999px;border:3px solid var(--bg)}
::-webkit-scrollbar-track{background:transparent}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media(max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
}
@media(max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-tight{padding:40px 0}
}

/* ---------- 导航 ---------- */
.header-shell{
  position:sticky;top:0;z-index:50;padding:14px 0;
  background:rgba(244,247,252,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:padding var(--ease),background-color var(--ease),border-color var(--ease);
}
.header-shell.is-scrolled{padding:8px 0;background:rgba(244,247,252,.95);border-bottom-color:var(--line)}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:12px 16px;box-shadow:var(--sh1);transition:box-shadow var(--ease);
}
.header-shell.is-scrolled .nav-card{box-shadow:var(--sh2)}
.logo-group{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  color:#fff;font-size:17px;background:linear-gradient(135deg,var(--brand-500),var(--accent-500));
  box-shadow:var(--sh1);
}
.logo-text{font-size:18px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--ink-700);white-space:nowrap;
  transition:background-color var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--brand-050);color:var(--brand-600)}
.nav-link.active{background:var(--brand-050);color:var(--brand-600)}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.burger{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-700);font-size:16px;
  transition:background-color var(--ease),color var(--ease);
}
.burger:hover{background:var(--brand-050);color:var(--brand-600)}
@media(min-width:1024px){.burger{display:none}}
@media(max-width:767px){.md-only{display:none !important}}
@media(max-width:639px){.sm-only{display:none !important}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--r-md);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn i{font-size:14px}
.btn-primary{background:var(--brand-500);color:#fff;box-shadow:var(--sh2)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px)}
.btn-spark{background:var(--spark-500);color:#fff;box-shadow:0 8px 20px -8px rgba(242,99,34,.6)}
.btn-spark:hover{background:var(--spark-600);transform:translateY(-1px)}
.btn-outline{background:var(--surface);color:var(--brand-600);border-color:var(--brand-100)}
.btn-outline:hover{background:var(--brand-050);border-color:var(--brand-500)}
.btn-ghost{background:transparent;color:var(--ink-700);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-600);border-color:var(--brand-100)}
.btn-white{background:#fff;color:var(--brand-600);box-shadow:var(--sh1)}
.btn-white:hover{background:var(--brand-050);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.4;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-brand{background:var(--brand-050);color:var(--brand-600)}
.badge-accent{background:var(--accent-050);color:var(--accent-600)}
.badge-spark{background:var(--spark-500);color:#fff}
.badge-soft{background:var(--surface2);color:var(--ink-500);border:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--ink-500);background:var(--surface2);border:1px solid var(--line);
}
.tag i{color:var(--accent-500);font-size:11px}

/* ---------- Banner ---------- */
.page-head{padding:32px 0 0}
.cat-banner{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#FFFFFF 0%,var(--brand-050) 100%);
  border:1px solid var(--line);border-radius:var(--r-xl);
  padding:44px;box-shadow:var(--sh1);min-height:240px;
}
.cat-banner::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:46%;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.16;-webkit-mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent);
  mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent);pointer-events:none;
}
.banner-inner{position:relative;z-index:1;max-width:720px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-500);margin-bottom:16px;flex-wrap:nowrap;overflow-x:auto}
.crumb a{color:var(--ink-500);transition:color var(--ease)}
.crumb a:hover{color:var(--brand-600)}
.crumb span{color:var(--ink-400)}
.crumb .crumb-cur{color:var(--ink-700);font-weight:600}
.cat-banner h1{font-size:clamp(28px,4.2vw,42px);font-weight:800;line-height:1.18;letter-spacing:-.02em}
.banner-sub{margin-top:16px;font-size:16px;color:var(--ink-700);max-width:620px}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.banner-meta .badge{background:#fff;border:1px solid var(--line);color:var(--ink-700)}
.banner-meta .badge i{color:var(--accent-500)}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
@media(max-width:768px){
  .cat-banner{padding:28px 22px;min-height:auto}
  .cat-banner::after{width:70%;opacity:.12}
}

/* ---------- 说明卡 ---------- */
.note-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:36px;box-shadow:var(--sh1);
}
.note-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.note-head h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:-.01em}
.note-head p{font-size:15px;color:var(--ink-500);max-width:560px;margin-top:8px}
.note-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:28px}
.note-item{border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;background:var(--surface2);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.note-item:hover{transform:translateY(-4px);border-color:var(--brand-100);box-shadow:var(--sh2)}
.note-ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:17px;margin-bottom:14px}
.note-ico.b{background:var(--brand-050);color:var(--brand-600)}
.note-ico.a{background:var(--accent-050);color:var(--accent-600)}
.note-item h3{font-size:15px;font-weight:700}
.note-item p{font-size:13px;color:var(--ink-500);margin-top:8px;line-height:1.7}
@media(max-width:1024px){.note-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.note-grid{grid-template-columns:1fr}.note-card{padding:24px}}

/* ---------- 横向列表布局 ---------- */
.ev-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:24px;align-items:start}
@media(max-width:1024px){
  .ev-layout{grid-template-columns:1fr}
  .ev-aside{order:2}
}
.ev-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
@media(max-width:1024px){.ev-aside{position:static}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh1)}
.side-title{font-size:16px;font-weight:700;margin-bottom:14px}
.side-link{
  display:grid;grid-template-columns:40px minmax(0,1fr) 14px;align-items:center;gap:12px;
  padding:12px;border-radius:var(--r-md);border:1px solid transparent;
  transition:background-color var(--ease),border-color var(--ease),transform var(--ease);
}
.side-link:hover{background:var(--brand-050);border-color:var(--brand-100);transform:translateY(-2px)}
.side-ico{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--brand-050);color:var(--brand-600);font-size:15px}
.side-ico.a{background:var(--accent-050);color:var(--accent-600)}
.side-link strong{display:block;font-size:14px;color:var(--ink-900);font-weight:600}
.side-link em{display:block;font-style:normal;font-size:12px;color:var(--ink-500);margin-top:2px}
.side-link .fa-chevron-right{font-size:11px;color:var(--ink-400)}
.side-cta{background:linear-gradient(140deg,var(--brand-500),var(--brand-600));border-color:transparent;color:#fff}
.side-cta h3{color:#fff;font-size:17px}
.side-cta p{font-size:13px;color:rgba(255,255,255,.86);margin:10px 0 18px;line-height:1.7}

.list-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:22px}
.list-head h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:-.01em}
.list-head p{font-size:14px;color:var(--ink-500);margin-top:8px}
.ev-list{display:flex;flex-direction:column;gap:20px}
.ev-card{
  display:grid;grid-template-columns:290px minmax(0,1fr);gap:24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.ev-card:hover{transform:translateY(-4px);box-shadow:var(--sh3);border-color:var(--brand-100)}
.ev-thumb{position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;background:var(--brand-050)}
.ev-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out}
.ev-card:hover .ev-thumb img{transform:scale(1.03)}
.ev-thumb .badge-spark{position:absolute;top:10px;left:10px}
.ev-body{display:flex;flex-direction:column;min-width:0}
.ev-body h3{font-size:17px;font-weight:700;line-height:1.45;transition:color var(--ease)}
.ev-card:hover .ev-body h3{color:var(--brand-600)}
.ev-desc{font-size:14px;color:var(--ink-500);margin-top:10px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ev-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.ev-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;border-top:1px dashed var(--line)}
.ev-time{font-size:13px;color:var(--ink-400);display:flex;align-items:center;gap:6px}
.ev-time i{color:var(--accent-500)}
.ev-btns{display:flex;gap:10px;flex-wrap:wrap}
@media(max-width:768px){
  .ev-card{grid-template-columns:1fr;gap:16px;padding:16px}
  .ev-thumb{aspect-ratio:16/9}
}

/* ---------- 分类入口面板 ---------- */
.entry-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh1)}
.entry-panel h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:-.01em}
.entry-panel > p{font-size:15px;color:var(--ink-500);margin-top:8px}
.entry-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:26px}
.entry-item{
  display:block;padding:18px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface2);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.entry-item:hover{transform:translateY(-2px);border-color:var(--brand-100);background:#fff;box-shadow:var(--sh2)}
.entry-ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:16px;margin-bottom:12px}
.entry-ico.b{background:var(--brand-050);color:var(--brand-600)}
.entry-ico.a{background:var(--accent-050);color:var(--accent-600)}
.entry-item h3{font-size:15px;font-weight:600}
.entry-item p{font-size:13px;color:var(--ink-500);margin-top:6px;line-height:1.65}
@media(max-width:1024px){.entry-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.entry-grid{grid-template-columns:repeat(2,1fr)}.entry-panel{padding:22px}}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.faq-item.open{border-color:var(--brand-100);box-shadow:var(--sh2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand-600);font-size:12px;
  transition:transform var(--ease),background-color var(--ease),color var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-500);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-700)}
.faq-item.open .faq-a{max-height:320px}

/* ---------- CTA ---------- */
.cta-card{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  border-radius:var(--r-xl);padding:44px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:0 20px 50px -20px rgba(47,111,230,.55);
}
.cta-card h2{color:#fff;font-size:clamp(22px,2.8vw,32px);letter-spacing:-.01em}
.cta-card p{color:rgba(255,255,255,.88);font-size:15px;margin-top:10px;max-width:620px}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:768px){.cta-card{padding:26px 22px}}

/* ---------- 页脚 ---------- */
.footer{margin-top:24px;background:var(--surface);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:64px 0 48px}
.footer h5{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:16px}
.footer-brand-desc{font-size:14px;color:var(--ink-500);margin-top:16px;line-height:1.8;max-width:360px}
.footer-link{display:block;font-size:14px;color:var(--ink-500);padding:5px 0;transition:color var(--ease)}
.footer-link:hover{color:var(--brand-600)}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-btn{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand-600);font-size:14px;
  transition:background-color var(--ease),transform var(--ease);
}
.social-btn:hover{background:var(--brand-100);transform:translateY(-2px)}
.copyright{background:var(--ink-900);color:rgba(255,255,255,.72)}
.copyright .container{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding-top:18px;padding-bottom:18px;font-size:12px}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 36px}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr}}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(16,24,40,.45);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:var(--bg);
  padding:20px;display:flex;flex-direction:column;gap:14px;overflow-y:auto;
  transform:translateX(100%);transition:transform 240ms ease-out;
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:12px 14px}
.drawer-item{
  display:grid;grid-template-columns:40px minmax(0,1fr) 14px;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:14px;
  transition:border-color var(--ease),transform var(--ease);
}
.drawer-item:hover{border-color:var(--brand-100);transform:translateY(-2px)}
.drawer-item strong{display:block;font-size:15px;color:var(--ink-900)}
.drawer-item em{display:block;font-style:normal;font-size:12px;color:var(--ink-500);margin-top:2px}
.drawer-foot{margin-top:auto;padding-top:12px}