/* roulang page: index */
:root{
  --brand:#1F5FA9;
  --brand-deep:#123A6B;
  --neon:#3DE0FF;
  --neon2:#17C3B2;
  --nav:#0A1424;
  --nav-line:rgba(61,224,255,.35);
  --bg:#F6F9FC;
  --card:#FFFFFF;
  --tint:#EAF2FB;
  --ink:#0F1B2D;
  --muted:#5B6B80;
  --line:#DCE6F2;
  --amber:#E8A33D;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 8px 28px rgba(16,32,64,.08);
  --shadow-2:0 14px 34px rgba(16,32,64,.13);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  overflow-wrap:break-word;
  word-break:break-word;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}

.container{max-width:1280px;margin:0 auto;padding:0 24px;width:100%}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(31,95,169,.24)}
.btn-primary:hover{background:#2769B8;transform:translateY(-2px)}
.btn-accent{background:var(--neon2);color:#062B28}
.btn-accent:hover{background:#2BE0C8;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:rgba(23,195,178,.55);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
  transition:color var(--ease);
}
.btn-link:hover{color:var(--neon2)}
.btn[disabled],.btn.is-disabled{opacity:.55;pointer-events:none}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--nav);
  border-bottom:1px solid var(--nav-line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:30px;height:30px;flex-shrink:0}
.brand-text{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.01em}
.brand-text .neon{color:var(--neon)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:block;padding:20px 14px;
  font-size:15px;font-weight:500;color:#B7C4D6;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;
  background:var(--neon);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--ease),opacity var(--ease);opacity:0;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(.4);opacity:.75}
.nav-link.active{color:#fff;text-shadow:0 0 10px rgba(61,224,255,.45)}
.nav-link.active::after{transform:scaleX(1);opacity:1}
.nav-actions{display:flex;align-items:center;gap:12px}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(61,224,255,.08);border:1px solid var(--nav-line);
  color:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;transition:var(--ease)}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;transition:var(--ease);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.mobile-drawer{
  display:none;background:#0C1A2E;border-top:1px solid var(--nav-line);
  padding:8px 0 16px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;height:56px;padding:0 24px;
  color:#C6D3E4;font-size:18px;border-left:3px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.mobile-drawer a:hover,.mobile-drawer a.active{
  color:#fff;background:rgba(61,224,255,.07);border-left-color:var(--neon2);
}
.mobile-drawer .drawer-cta{margin:12px 24px 0}

/* ============ 通用区块 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);
  text-transform:none;margin-bottom:12px;
}
.section-label::before{content:"";width:22px;height:2px;background:var(--neon2);border-radius:2px}
h2.sec-title{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.sec-desc{margin-top:12px;max-width:720px;font-size:16px;color:var(--muted);line-height:1.85}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge-cat{background:var(--tint);color:var(--brand)}
.badge-time{background:var(--bg);color:var(--muted);font-weight:500}
.badge-time svg{width:13px;height:13px}
.badge-amber{background:rgba(232,163,61,.12);color:#9A6716;font-weight:600}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(23,195,178,.45)}

.img-fallback{background:var(--tint);position:relative;display:flex;align-items:center;justify-content:center}
.img-fallback::after{
  content:"kai官方yun在线";color:var(--brand);font-size:14px;font-weight:600;letter-spacing:.04em;
}

/* ============ Hero ============ */
.hero{position:relative;padding:76px 0 88px;background:#fff;overflow:hidden}
.hero::after{
  content:"";position:absolute;top:0;right:calc(50% - 640px + 40px);width:1px;height:100%;
  background:linear-gradient(180deg,rgba(61,224,255,0),rgba(61,224,255,.55));display:none;
}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.hero-title{
  font-size:46px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--ink);
}
.hero-title .hl{color:var(--brand)}
.hero-sub{margin-top:20px;font-size:18px;color:var(--muted);line-height:1.8;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.trust-item{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--muted)}
.trust-item svg{width:15px;height:15px;color:var(--neon2);flex-shrink:0}
.hero-media{position:relative}
.hero-img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);
  box-shadow:var(--shadow-2);border:1px solid var(--line);
}
.hero-float{
  position:absolute;right:-14px;bottom:-22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:16px 20px;min-width:180px;
}
.hero-float .num{font-size:26px;font-weight:700;color:var(--brand-deep);line-height:1.2}
.hero-float .cap{font-size:13px;color:var(--muted);margin-top:2px}

/* ============ 故事区 ============ */
.story{background:#fff}
.story-item{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.story-item+.story-item{margin-top:72px}
.story-item.reverse .story-text{order:2}
.story-item.reverse .story-media{order:1}
.story-text{border-left:4px solid var(--brand);padding-left:24px}
.story-text h3{font-size:22px;font-weight:700;color:var(--ink);line-height:1.4}
.story-text p{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.9}
.story-num{display:block;font-size:13px;font-weight:700;color:var(--neon2);letter-spacing:.12em;margin-bottom:10px}
.story-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line);box-shadow:var(--shadow-1)}

/* ============ 服务覆盖 ============ */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{padding:28px 26px}
.service-icon{
  width:44px;height:44px;border-radius:12px;background:var(--tint);
  display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:18px;
}
.service-icon svg{width:22px;height:22px}
.service-card h3{font-size:19px;font-weight:700;line-height:1.45}
.service-card p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.85}
.service-card .meta{margin-top:16px;font-size:13px;color:var(--amber);font-weight:600}

/* ============ 精选内容 1大2小 ============ */
.feature-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:stretch}
.big-card{overflow:hidden;display:flex;flex-direction:column;grid-row:span 2}
.big-card .cover{width:100%;height:216px;object-fit:cover}
.big-card .body{padding:24px;display:flex;flex-direction:column;flex:1}
.big-card h3{font-size:22px;font-weight:700;line-height:1.45;margin-top:14px}
.big-card p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85}
.big-card .foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between}
.small-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.small-card{display:grid;grid-template-columns:40% 1fr;overflow:hidden}
.small-card .cover{width:100%;height:100%;min-height:170px;object-fit:cover}
.small-card .body{padding:20px 22px;display:flex;flex-direction:column}
.small-card h3{font-size:17px;font-weight:700;line-height:1.5;margin-top:10px}
.small-card p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75}
.small-card .foot{margin-top:auto;padding-top:12px}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}

/* ============ 信任背书 ============ */
.stats-band{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat .num{font-size:32px;font-weight:700;color:var(--brand-deep);line-height:1.2}
.stat .cap{margin-top:6px;font-size:14px;color:var(--muted)}
.logo-strip{
  margin-top:36px;display:flex;gap:16px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:thin;
}
.logo-strip li{
  flex:0 0 auto;padding:10px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--muted);filter:grayscale(60%);transition:filter var(--ease),color var(--ease);
}
.logo-strip li:hover{filter:grayscale(0);color:var(--brand)}
.logo-strip::-webkit-scrollbar{height:6px}
.logo-strip::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px}

/* ============ 订阅区 ============ */
.subscribe-wrap{padding:96px 0 0}
.subscribe{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:44px 48px;overflow:hidden;
}
.subscribe::before{content:"";position:absolute;top:0;left:0;width:140px;height:2px;background:var(--neon)}
.subscribe-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.subscribe h2{font-size:28px;font-weight:700;line-height:1.35}
.subscribe p.lead{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.85}
.subscribe-form label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.subscribe-form .row{display:flex;gap:12px}
.subscribe-form input{
  flex:1;height:52px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.subscribe-form input:focus{outline:none;border-color:var(--neon2);box-shadow:0 0 0 3px rgba(23,195,178,.2)}
.subscribe-form .hint{margin-top:12px;font-size:13px;color:var(--muted)}
.form-note{margin-top:10px;font-size:13px;color:#D94F5C;display:none;align-items:center;gap:6px}
.form-note.show{display:flex}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{padding:26px 28px;display:flex;flex-direction:column}
.news-card h3{font-size:19px;font-weight:700;line-height:1.5;margin-top:14px}
.news-card h3 a{transition:color var(--ease)}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{
  margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--card);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-state svg{width:34px;height:34px;color:var(--brand)}
.empty-state p{font-size:14px;color:var(--muted)}

/* ============ 常见问题 ============ */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.qa-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 26px;box-shadow:var(--shadow-1)}
.qa-item h3{font-size:17px;font-weight:700;line-height:1.5;display:flex;gap:10px}
.qa-item h3 .mark{color:var(--neon2);font-weight:700;flex-shrink:0}
.qa-item p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.85}

/* ============ 页脚 ============ */
.site-footer{background:var(--nav);border-top:1px solid var(--nav-line);margin-top:0;padding:64px 0 0;color:#9FB0C4}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{font-size:17px;color:#fff}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:#9FB0C4}
.footer-col li+li{margin-top:10px}
.footer-col a{font-size:14px;color:#9FB0C4;transition:color var(--ease)}
.footer-col a:hover{color:var(--neon)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7E90A6;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:6fr 6fr;gap:36px}
  .hero-title{font-size:38px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-actions .btn{display:none}
  .hamburger{display:flex}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .hero{padding:48px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-title{font-size:31px}
  .hero-sub{font-size:16px}
  .hero-float{right:10px;bottom:-18px;padding:12px 16px;min-width:150px}
  .hero-float .num{font-size:22px}
  .story-item,.story-item.reverse{grid-template-columns:1fr;gap:24px}
  .story-item.reverse .story-text{order:1}
  .story-item.reverse .story-media{order:2}
  h2.sec-title{font-size:24px}
  .service-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .big-card{grid-row:auto}
  .small-stack{grid-template-rows:auto}
  .small-card{grid-template-columns:1fr}
  .small-card .cover{height:180px;min-height:180px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stats-band{padding:44px 0}
  .subscribe{padding:30px 22px}
  .subscribe-grid{grid-template-columns:1fr;gap:26px}
  .subscribe-form .row{flex-direction:column}
  .news-grid{grid-template-columns:1fr}
  .qa-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:520px){
  .hero-title{font-size:28px}
  .trust-row{gap:14px}
  .stats-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-cta .btn{width:auto;flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand:#1F5FA9;
  --brand-deep:#123A6B;
  --neon:#3DE0FF;
  --neon2:#17C3B2;
  --nav:#0A1424;
  --nav-line:rgba(61,224,255,.35);
  --bg:#F6F9FC;
  --card:#FFFFFF;
  --tint:#EAF2FB;
  --ink:#0F1B2D;
  --muted:#5B6B80;
  --line:#DCE6F2;
  --amber:#E8A33D;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 8px 28px rgba(16,32,64,.08);
  --shadow-lg:0 14px 34px rgba(16,32,64,.13);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-wrap:break-word;
  word-break:break-word;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
h1,h2,h3,h4{letter-spacing:-.01em;margin:0;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--nav);
  border-bottom:1px solid var(--nav-line);
}
.header-inner{
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:30px;height:30px;flex-shrink:0;}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:0;}
.brand-text .neon{color:var(--neon);}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;
  padding:0 14px;line-height:64px;font-size:15px;color:#B7C4D6;
  transition:color .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;border-radius:2px;
  background:var(--neon);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:#FFFFFF;}
.nav-link:hover::after{transform:scaleX(.4);}
.nav-link.active{color:#FFFFFF;text-shadow:0 0 12px rgba(61,224,255,.35);}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--neon2);color:#062420;
  padding:10px 18px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;
  transition:background .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-cta:hover{background:#2BE0C8;transform:translateY(-1px);box-shadow:0 10px 22px rgba(23,195,178,.28);}
.btn-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-btn);
  border:1px solid rgba(61,224,255,.35);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#D7E3F2;border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:56px;z-index:49;
  background:var(--nav);border-bottom:1px solid var(--nav-line);
  padding:8px 0 18px;
  transform:translateY(-130%);transition:transform .24s ease-out;
  max-height:calc(100vh - 56px);overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0);}
.mobile-drawer .container{display:flex;flex-direction:column;}
.mobile-drawer a{
  font-size:18px;color:#C6D3E4;line-height:56px;border-bottom:1px solid rgba(61,224,255,.14);
}
.mobile-drawer a.active{color:#fff;box-shadow:inset 3px 0 0 var(--neon);padding-left:12px;}
.mobile-drawer .btn-cta{margin-top:16px;justify-content:center;color:#062420;}

/* ---------- 文章头部 ---------- */
.article-hero{
  background-image:linear-gradient(180deg,rgba(246,249,252,.94),rgba(246,249,252,.99)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:38px 0 34px;
}
.breadcrumb{font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;}
.breadcrumb .sep{color:var(--line);}
.breadcrumb a{border-bottom:1px solid transparent;transition:color .2s ease-out,border-color .2s ease-out;}
.breadcrumb a:hover{color:var(--brand);border-color:var(--neon2);}
.breadcrumb .current{
  color:var(--muted);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;line-height:1;padding:7px 12px;border-radius:999px;
}
.badge-cat{background:var(--tint);color:var(--brand);font-weight:600;}
.badge-time{background:var(--card);border:1px solid var(--line);color:var(--muted);}
.badge-alert{background:#FFF8EC;color:#8A5C10;border-left:3px solid var(--amber);border-radius:6px;}
.article-title{
  font-size:42px;line-height:1.25;font-weight:700;color:var(--ink);max-width:960px;
}
.article-meta{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.article-meta .dot{color:var(--line);}

/* ---------- 正文 ---------- */
.article-main{padding:56px 0 96px;}
.article-shell{max-width:760px;margin:0 auto;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:40px 44px;
}
.cms-content{font-size:17px;line-height:1.9;color:var(--ink);}
.cms-content > * + *{margin-top:1.2em;}
.cms-content h2{
  position:relative;font-size:28px;line-height:1.35;font-weight:700;margin-top:40px;color:var(--ink);padding-left:14px;
}
.cms-content h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;background:var(--neon2);
}
.cms-content h3{font-size:21px;line-height:1.45;font-weight:600;margin-top:28px;color:var(--brand-deep);}
.cms-content h4{font-size:18px;font-weight:600;margin-top:22px;color:var(--ink);}
.cms-content p{line-height:1.9;}
.cms-content ul{padding-left:0;}
.cms-content ul > li{position:relative;padding-left:20px;margin-top:.6em;line-height:1.85;}
.cms-content ul > li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.cms-content ol{padding-left:1.4em;list-style:decimal;}
.cms-content ol > li{margin-top:.6em;line-height:1.85;list-style:decimal;}
.cms-content blockquote{
  background:var(--tint);border-left:4px solid var(--brand);border-radius:0 var(--radius-img) var(--radius-img) 0;
  padding:20px 22px;color:var(--brand-deep);font-size:16px;line-height:1.85;
}
.cms-content img{border-radius:var(--radius-img);box-shadow:var(--shadow-sm);width:100%;height:auto;}
.cms-content figure{margin:0;}
.cms-content figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.cms-content a{color:var(--brand);border-bottom:1px solid rgba(31,95,169,.35);transition:color .2s ease-out,border-color .2s ease-out;}
.cms-content a:hover{color:var(--brand-deep);border-color:var(--neon2);}
.cms-content table{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;}
.cms-content th,.cms-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.cms-content th{background:var(--tint);color:var(--brand-deep);font-weight:600;}
.cms-content pre{
  background:#F1F5FA;border:1px solid var(--line);border-radius:var(--radius-img);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.cms-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:#F1F5FA;padding:2px 6px;border-radius:6px;color:var(--brand-deep);
}
.cms-content pre code{background:none;padding:0;}
.cms-content hr{border:none;border-top:1px solid var(--line);margin:32px 0;}
.empty-state{
  text-align:center;padding:36px 20px;
}
.empty-state svg{margin:0 auto 14px;}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:18px;}

/* ---------- 结尾区 ---------- */
.article-footer{margin-top:36px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  font-size:13px;color:var(--brand);background:var(--tint);
  padding:6px 12px;border-radius:999px;transition:background .2s ease-out,color .2s ease-out;
}
.tag:hover{background:#DCEAF9;color:var(--brand-deep);}
.related{margin-top:48px;}
.related-title{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:16px;}
.related-list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.related-list li + li{border-top:1px solid var(--line);}
.related-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;font-size:15.5px;color:var(--ink);
  transition:background .2s ease-out,padding-left .2s ease-out;
}
.related-list a:hover{background:var(--tint);padding-left:24px;}
.related-list .arrow{color:var(--brand);flex-shrink:0;}
.back-row{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:#256FBF;transform:translateY(-1px);box-shadow:0 12px 24px rgba(31,95,169,.24);}
.btn-accent{background:var(--neon2);color:#062420;}
.btn-accent:hover{background:#2BE0C8;transform:translateY(-1px);box-shadow:0 12px 24px rgba(23,195,178,.26);}
.btn-ghost{background:var(--card);border:1px solid var(--line);color:var(--brand);}
.btn-ghost:hover{border-color:rgba(23,195,178,.6);color:var(--brand-deep);transform:translateY(-1px);}
.btn:active{transform:translateY(0) scale(.995);}
.btn:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
.btn[disabled]{opacity:.55;pointer-events:none;}
.link-btn{
  color:var(--brand);font-weight:600;border-bottom:1px solid rgba(31,95,169,.4);
  padding-bottom:2px;transition:color .2s ease-out,border-color .2s ease-out;
}
.link-btn:hover{color:var(--neon2);border-color:var(--neon2);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--nav);
  border-top:1px solid var(--nav-line);
  padding:64px 0 0;
  color:#9FB0C4;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{font-size:17px;}
.footer-col p{font-size:14px;line-height:1.85;color:#9FB0C4;max-width:340px;}
.footer-col h4{font-size:15px;color:#FFFFFF;font-weight:700;margin-bottom:14px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:#9FB0C4;transition:color .2s ease-out;}
.footer-col ul a:hover{color:var(--neon);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(159,176,196,.18);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8395A9;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-title{font-size:34px;}
  .article-card{padding:32px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .header-actions .btn-cta{display:none;}
  .nav-toggle{display:flex;}
  .site-header{height:56px;}
  .header-inner{height:56px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .article-hero{padding:26px 0 24px;}
  .article-title{font-size:28px;line-height:1.35;}
  .article-main{padding:36px 0 64px;}
  .article-card{padding:24px 20px;border-radius:12px;}
  .cms-content{font-size:16px;line-height:1.8;}
  .cms-content h2{font-size:22px;margin-top:32px;}
  .cms-content h3{font-size:19px;margin-top:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:520px){
  .article-title{font-size:25px;}
  .badge{font-size:12px;padding:6px 10px;}
  .btn{width:100%;}
  .back-row .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#EDF3FA;}
::-webkit-scrollbar-thumb{background:#C3D4E6;border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:#A9BFD8;}

/* roulang page: category1 */
:root{
    --brand:#1F5FA9;
    --brand-deep:#123A6B;
    --neon:#3DE0FF;
    --neon2:#17C3B2;
    --nav:#0A1424;
    --nav-line:rgba(61,224,255,.35);
    --bg:#F6F9FC;
    --card:#FFFFFF;
    --tint:#EAF2FB;
    --ink:#0F1B2D;
    --muted:#5B6B80;
    --line:#DCE6F2;
    --amber:#E8A33D;
    --danger:#D94F5C;
    --r-card:14px;
    --r-img:12px;
    --r-btn:10px;
    --sh:0 8px 28px rgba(16,32,64,.08);
    --sh-hover:0 14px 34px rgba(16,32,64,.13);
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    overflow-wrap:break-word;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
  button{font-family:inherit;}
  input{font-family:inherit;}

  .container{max-width:1280px;margin:0 auto;padding:0 24px;}

  /* ---------- 顶栏 ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:var(--nav);
    border-bottom:1px solid var(--nav-line);
  }
  .header-inner{
    height:64px;
    display:flex;align-items:center;justify-content:space-between;gap:24px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{width:30px;height:30px;flex:none;}
  .brand-text{
    font-size:18px;font-weight:700;color:#fff;letter-spacing:-.01em;white-space:nowrap;
  }
  .brand-text .neon{color:var(--neon);}

  .main-nav{display:flex;align-items:center;gap:4px;}
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;height:64px;padding:0 14px;
    font-size:15px;color:#B7C4D6;
    transition:color .2s ease-out;
  }
  .nav-link::after{
    content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;
    background:var(--neon);transform:translateX(-50%);
    transition:width .2s ease-out;
  }
  .nav-link:hover{color:#FFFFFF;}
  .nav-link:hover::after{width:40%;}
  .nav-link.active{color:#FFFFFF;text-shadow:0 0 12px rgba(61,224,255,.45);}
  .nav-link.active::after{width:100%;}

  .header-actions{display:flex;align-items:center;gap:12px;flex:none;}
  .btn-cta{
    display:inline-flex;align-items:center;justify-content:center;
    height:40px;padding:0 18px;border-radius:var(--r-btn);
    background:var(--neon2);color:#062028;font-size:14px;font-weight:700;
    transition:background-color .2s ease-out,transform .2s ease-out;
  }
  .btn-cta:hover{background:#2BE0C8;transform:translateY(-1px);}
  .btn-cta:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
  .btn-cta:active{transform:translateY(1px);}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;
    border:1px solid rgba(255,255,255,.18);background:transparent;
    align-items:center;justify-content:center;flex-direction:column;gap:5px;
    cursor:pointer;padding:0;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;}
  .nav-toggle:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}

  .mobile-drawer{display:none;background:var(--nav);border-top:1px solid var(--nav-line);}
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer a{
    display:flex;align-items:center;height:56px;padding:0 24px;
    font-size:18px;color:#D7E2F0;border-bottom:1px solid rgba(61,224,255,.12);
  }
  .mobile-drawer a:hover{color:var(--neon);}

  /* ---------- 按钮体系 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 24px;border-radius:var(--r-btn);
    border:1px solid transparent;font-size:15px;font-weight:600;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;
  }
  .btn:hover{transform:translateY(-1px);}
  .btn:active{transform:translateY(1px);}
  .btn:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
  .btn[disabled],.btn.is-disabled{opacity:.55;pointer-events:none;}
  .btn-primary{background:var(--brand);color:#fff;}
  .btn-primary:hover{background:#2670C2;box-shadow:var(--sh-hover);}
  .btn-accent{background:var(--neon2);color:#062028;}
  .btn-accent:hover{background:#2BE0C8;box-shadow:var(--sh-hover);}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--brand);}
  .btn-ghost:hover{border-color:rgba(23,195,178,.45);color:var(--brand-deep);box-shadow:var(--sh);}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand);text-decoration:underline;text-underline-offset:4px;
    transition:color .2s ease-out;
  }
  .btn-link:hover{color:var(--neon2);}

  /* ---------- 横幅 ---------- */
  .banner{
    position:relative;
    min-height:260px;
    display:flex;align-items:flex-end;
    background:#0A1424 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    overflow:hidden;
  }
  .banner::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(10,20,36,.88) 12%,rgba(10,20,36,.6) 78%);
  }
  .banner .container{padding-top:56px;padding-bottom:40px;position:relative;z-index:1;}
  .breadcrumb{
    display:flex;align-items:center;flex-wrap:wrap;gap:8px;
    font-size:14px;color:rgba(255,255,255,.7);margin-bottom:16px;
  }
  .breadcrumb a{color:rgba(255,255,255,.86);}
  .breadcrumb a:hover{color:var(--neon);}
  .breadcrumb .sep{color:rgba(255,255,255,.34);}
  .breadcrumb .current{color:rgba(255,255,255,.66);}
  .banner-title{
    font-size:clamp(30px,4.4vw,48px);line-height:1.25;font-weight:700;
    color:#fff;letter-spacing:-.01em;
  }
  .banner-sub{margin-top:12px;font-size:15px;color:rgba(255,255,255,.74);}

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:24px;margin-bottom:36px;
  }
  .section-title{
    font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;
    letter-spacing:-.01em;color:var(--ink);
  }
  .section-note{font-size:14px;color:var(--muted);flex:none;}
  .eyebrow{
    display:inline-block;font-size:13px;font-weight:600;
    color:var(--brand);background:var(--tint);
    border-radius:999px;padding:4px 12px;margin-bottom:14px;
  }

  /* ---------- 说明区 ---------- */
  .intro-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:start;}
  .lead{margin-top:14px;font-size:16px;color:var(--muted);}
  .intro-points{margin-top:26px;display:grid;gap:14px;}
  .intro-points li{
    display:flex;gap:12px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:16px 18px;box-shadow:var(--sh);
    transition:transform .2s ease-out,border-color .2s ease-out;
  }
  .intro-points li:hover{transform:translateY(-2px);border-color:rgba(23,195,178,.45);}
  .intro-points .dot{
    width:8px;height:8px;border-radius:50%;background:var(--brand);
    margin-top:10px;flex:none;
  }
  .intro-points strong{display:block;font-size:15px;color:var(--ink);}
  .intro-points span{font-size:14px;color:var(--muted);}
  .intro-media{
    border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh);
    aspect-ratio:16/10;background:var(--tint);
  }
  .intro-media img{width:100%;height:100%;object-fit:cover;}
  .intro-meta{
    margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;
  }
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    font-size:13px;color:var(--brand);background:var(--tint);
    border-radius:999px;padding:4px 12px;
  }

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;max-width:820px;}
  .timeline::before{
    content:"";position:absolute;left:71px;top:12px;bottom:12px;
    width:1px;background:var(--line);
  }
  .timeline-item{position:relative;display:grid;grid-template-columns:72px 1fr;gap:24px;align-items:start;}
  .timeline-item + .timeline-item{margin-top:26px;}
  .timeline-node{
    position:absolute;left:67px;top:26px;width:9px;height:9px;border-radius:50%;
    background:var(--neon);box-shadow:0 0 0 4px rgba(61,224,255,.16);
    transition:transform .2s ease-out;
  }
  .timeline-item:hover .timeline-node{transform:scale(1.15);}
  .timeline-time{padding:14px 20px 0 0;text-align:right;}
  .t-year{display:block;font-size:12px;color:var(--muted);letter-spacing:.04em;}
  .t-month{display:block;font-size:20px;font-weight:700;color:var(--brand-deep);line-height:1.4;}

  .entry-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh);padding:22px 24px;
    transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .entry-card:hover{
    transform:translateY(-2px);
    border-color:rgba(23,195,178,.45);
    box-shadow:var(--sh-hover);
  }
  .badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;}
  .badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:3px 10px;border-radius:999px;}
  .badge-cat{background:var(--tint);color:var(--brand);font-weight:600;}
  .badge-time{background:var(--bg);color:var(--muted);border:1px solid var(--line);}
  .badge-time::before{
    content:"";width:10px;height:10px;flex:none;border-radius:50%;
    border:1.4px solid var(--muted);
  }
  .entry-title{font-size:20px;line-height:1.45;font-weight:700;color:var(--ink);}
  .entry-desc{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8;}
  .entry-link{
    margin-top:14px;display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--brand);
  }
  .entry-link:hover{color:var(--neon2);}
  .entry-link .arrow{transition:transform .2s ease-out;}
  .entry-link:hover .arrow{transform:translateX(3px);}

  /* ---------- 覆盖范围 ---------- */
  .tint-band{background:var(--tint);padding:72px 0;}
  .scope-head{max-width:660px;margin-bottom:32px;}
  .scope-head p{margin-top:10px;font-size:15px;color:var(--muted);}
  .scope-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .scope-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--sh);
    transition:transform .2s ease-out,border-color .2s ease-out;
  }
  .scope-card:hover{transform:translateY(-2px);border-color:rgba(23,195,178,.45);}
  .scope-num{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--neon2);}
  .scope-card h3{margin:10px 0 8px;font-size:18px;font-weight:700;color:var(--ink);}
  .scope-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}

  /* ---------- 其他分类入口 ---------- */
  .other-links{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:0 40px;}
  .other-links a{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:18px 0;border-bottom:1px solid var(--line);
    font-size:15px;color:var(--ink);
  }
  .other-links a:hover{color:var(--neon2);}
  .other-links .tag{font-size:13px;color:var(--muted);flex:none;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--nav);color:#9FB0C4;
    border-top:1px solid var(--nav-line);
    padding:64px 0 0;font-size:14px;
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{width:28px;height:28px;}
  .footer-brand .brand-text{font-size:17px;}
  .footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
  .footer-col ul{display:grid;gap:9px;}
  .footer-col a{color:#9FB0C4;}
  .footer-col a:hover{color:var(--neon);}
  .footer-col p{color:#8FA2B8;line-height:1.8;}
  .footer-bottom{
    margin-top:48px;padding:20px 0;
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:#7C8DA3;flex-wrap:wrap;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .section{padding:72px 0;}
    .intro-grid{grid-template-columns:1fr;gap:34px;}
    .scope-grid{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:767px){
    .header-inner{height:56px;}
    .main-nav{display:none;}
    .nav-toggle{display:inline-flex;}
    .btn-cta{display:none;}
    .section{padding:56px 0;padding-left:0;padding-right:0;}
    .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
    .banner{min-height:180px;}
    .banner .container{padding-top:44px;padding-bottom:32px;}
    .banner-title{font-size:30px;}
    .timeline::before{display:none;}
    .timeline-item{grid-template-columns:1fr;gap:10px;}
    .timeline-item + .timeline-item{margin-top:20px;}
    .timeline-node{display:none;}
    .timeline-time{padding:0;text-align:left;display:flex;align-items:baseline;gap:8px;}
    .t-month{font-size:16px;color:var(--brand);}
    .scope-grid{grid-template-columns:1fr;gap:16px;}
    .other-links{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:520px){
    .container{padding:0 18px;}
    .entry-card{padding:18px;}
    .btn{width:100%;}
  }
  @media (min-width:768px){
    .mobile-drawer{display:none !important;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
  }

/* roulang page: category2 */
:root{
  --brand:#1F5FA9;
  --brand-deep:#123A6B;
  --neon:#3DE0FF;
  --neon2:#17C3B2;
  --nav:#0A1424;
  --nav-line:rgba(61,224,255,.35);
  --bg:#F6F9FC;
  --card:#FFFFFF;
  --tint:#EAF2FB;
  --ink:#0F1B2D;
  --muted:#5B6B80;
  --line:#DCE6F2;
  --amber:#E8A33D;
  --danger:#D94F5C;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh:0 8px 28px rgba(16,32,64,.08);
  --sh-hover:0 14px 34px rgba(16,32,64,.13);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  overflow-wrap:break-word;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;line-height:1.3;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--nav);
  border-bottom:1px solid var(--nav-line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand-text{font-size:17px;font-weight:700;color:#FFFFFF;letter-spacing:-0.01em}
.brand-text .neon{color:var(--neon)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:64px;padding:0 14px;font-size:15px;color:#B7C4D6;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:transparent;transition:background var(--ease),left var(--ease),right var(--ease);
}
.nav-link:hover{color:#FFFFFF}
.nav-link:hover::after{background:var(--neon);left:34%;right:34%;opacity:.7}
.nav-link.active{color:#FFFFFF;text-shadow:0 0 12px rgba(61,224,255,.45)}
.nav-link.active::after{background:var(--neon);left:14px;right:14px}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(61,224,255,.28);
  border-radius:var(--r-btn);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#B7C4D6;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#B7C4D6;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;background:var(--nav);border-top:1px solid var(--nav-line);
  padding:8px 24px 20px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:block;font-size:18px;line-height:56px;color:#B7C4D6;
  border-bottom:1px solid rgba(61,224,255,.14);
}
.mobile-drawer a.active{color:#FFFFFF}
.mobile-drawer a:last-child{border-bottom:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.55;pointer-events:none}
.btn-neon{background:var(--neon2);color:#06231F;box-shadow:0 6px 18px rgba(23,195,178,.25)}
.btn-neon:hover{background:#2BE0C8;transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:#FFFFFF}
.btn-primary:hover{background:#276FBF;transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,95,169,.22)}
.btn-ghost{background:#FFFFFF;color:var(--brand);border:1px solid var(--line)}
.btn-ghost:hover{border-color:rgba(23,195,178,.55);transform:translateY(-1px);box-shadow:var(--sh)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-size:15px;font-weight:600;text-decoration:underline;
  text-underline-offset:4px;text-decoration-thickness:1px;
}
.btn-link:hover{color:var(--neon2)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 10px;border-radius:999px;font-size:12.5px;line-height:1.6;
}
.badge-cat{background:var(--tint);color:var(--brand);font-weight:600}
.badge-time{background:var(--bg);color:var(--muted);border:1px solid var(--line)}
.badge-time::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--amber);flex:0 0 auto;
}
.badge-note{background:rgba(232,163,61,.12);color:#8A5B12;border-left:2px solid var(--amber);border-radius:4px}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);margin-bottom:16px;
}
.breadcrumb a{text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--line)}
.breadcrumb a:hover{color:var(--brand);text-decoration-color:var(--neon2)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--muted)}

/* ============ Hero ============ */
.cat-hero{padding:56px 0 0}
.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.cat-hero h1{
  font-size:clamp(30px,3.4vw,46px);line-height:1.28;font-weight:700;
  color:var(--ink);margin-bottom:18px;
}
.cat-hero h1 .hl{color:var(--brand-deep)}
.cat-lead{
  font-size:17px;line-height:1.85;color:var(--muted);max-width:640px;
  padding-left:18px;border-left:4px solid var(--brand);
}
.cat-hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh);aspect-ratio:16/10;background:var(--tint);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(10,20,36,.82);color:#FFFFFF;
  border-radius:var(--r-btn);padding:8px 14px;font-size:13.5px;
  border-left:2px solid var(--neon);
}

/* ============ 亮点条 ============ */
.highlight-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;
}
.highlight-item{padding:26px 24px;border-right:1px solid var(--line)}
.highlight-item:last-child{border-right:0}
.highlight-item strong{
  display:block;font-size:16px;font-weight:700;color:var(--brand-deep);
  margin-bottom:6px;
}
.highlight-item span{font-size:14px;color:var(--muted);line-height:1.7;display:block}
.highlight-item::before{
  content:"";display:block;width:22px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--neon2));margin-bottom:14px;
}

/* ============ 板块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head h2{font-size:clamp(24px,2.4vw,30px);color:var(--ink)}
.sec-head p{font-size:14.5px;color:var(--muted);margin-top:8px;max-width:620px}
.sec-eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--tint);border-radius:999px;
  padding:3px 12px;margin-bottom:12px;
}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(23,195,178,.45)}
.card-link{display:flex;flex-direction:column;height:100%}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--tint)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge-cat{position:absolute;left:14px;top:14px}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{
  font-size:19px;font-weight:700;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14.5px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:14px;color:var(--brand);font-weight:600;
}
.card-foot .arrow{transition:transform var(--ease);color:var(--neon2)}
.card:hover .card-foot .arrow{transform:translateX(4px)}

/* ============ 流程 ============ */
.flow-wrap{background:var(--tint);border-radius:var(--r-card);padding:44px 40px}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-step{position:relative;padding-top:8px}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;background:#FFFFFF;
  color:var(--brand);font-weight:700;font-size:15px;
  border:1px solid var(--line);box-shadow:var(--sh);margin-bottom:14px;
}
.flow-step h3{font-size:17px;margin-bottom:8px;color:var(--brand-deep)}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:start}
.faq-intro h2{font-size:clamp(24px,2.4vw,30px);margin-bottom:14px}
.faq-intro p{font-size:15px;color:var(--muted);line-height:1.85}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;transition:border-color var(--ease)}
.faq-item.open{border-color:rgba(23,195,178,.45)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:52px;padding:14px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand)}
.faq-plus{width:18px;height:18px;position:relative;flex:0 0 auto;transition:transform 220ms ease-out}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-plus::before{left:0;top:8px;width:18px;height:2px}
.faq-plus::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-plus{transform:rotate(45deg)}
.faq-item.open .faq-plus::before,.faq-item.open .faq-plus::after{background:var(--neon2)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-item.open .faq-a{max-height:460px}
.faq-a-inner{
  padding:0 22px 20px 22px;font-size:15px;line-height:1.85;color:var(--muted);
}

/* ============ CTA 通栏 ============ */
.cta-band{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band .container{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding-top:44px;padding-bottom:44px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2vw,25px);color:var(--brand-deep);margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--nav);color:#9FB0C4;
  border-top:1px solid var(--nav-line);
  padding:64px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-col h4{font-size:15px;color:#FFFFFF;margin-bottom:16px;font-weight:700}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#9FB0C4;transition:color var(--ease)}
.footer-col a:hover{color:var(--neon)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:30px;height:30px}
.footer-brand .brand-text{font-size:17px;font-weight:700;color:#FFFFFF}
.footer-col p{font-size:14px;line-height:1.85;color:#8FA1B6;max-width:320px}
.footer-bottom{
  margin-top:48px;padding:20px 0 28px;border-top:1px solid rgba(61,224,255,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7D8FA5;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .highlight-bar{grid-template-columns:repeat(2,1fr)}
  .highlight-item:nth-child(2){border-right:0}
  .highlight-item:nth-child(1),.highlight-item:nth-child(2){border-bottom:1px solid var(--line)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-neon{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .cat-hero{padding:36px 0 0}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px}
  .cat-lead{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .highlight-bar{grid-template-columns:1fr}
  .highlight-item{border-right:0;border-bottom:1px solid var(--line)}
  .highlight-item:last-child{border-bottom:0}
  .flow{grid-template-columns:1fr}
  .flow-wrap{padding:28px 22px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band .container{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .brand-text{font-size:16px}
  .btn{width:100%}
  .btn-inline{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}