/* roulang page: index */
:root{
  --blue:#1d4e89;
  --blue-2:#2f6fbe;
  --blue-soft:#e7f0fb;
  --ink:#14233a;
  --muted:#5d6d84;
  --line:#d9e3f0;
  --bg:#f5f8fc;
  --card:#ffffff;
  --hot:#e8f3ff;
  --shadow:0 14px 36px rgba(20,50,90,.08);
  --radius:18px;
  --bs-primary:#1d4e89;
  --bs-link-color:#1d4e89;
  --bs-body-color:#14233a;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--bg);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:#153a66}
button,input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--blue-2);outline-offset:2px}
.container{max-width:1120px}
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 8px 24px rgba(20,50,90,.04)}
.brand-row{padding:12px 0 8px}
.brand-row .container{display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);min-width:148px}
.logo:hover{color:var(--blue)}
.logo-mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(160deg,#6ea2e4,#1d4e89);color:#fff;font-weight:700;box-shadow:var(--shadow)}
.logo strong{display:block;font-size:20px;letter-spacing:.04em;line-height:1.1}
.logo small{display:block;color:var(--muted);font-size:12px}
.search-form{flex:1;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 16px;min-width:0}
.search-form input{flex:1;border:0;background:transparent;min-width:0;padding:8px 0;color:var(--ink)}
.search-form input:focus{outline:none}
.search-form button{border:0;background:var(--blue);color:#fff;border-radius:999px;padding:8px 16px;font-weight:700}
.search-form button:hover{background:#163e6e}
.hotwords{display:flex;gap:8px;align-items:center;flex-wrap:wrap;max-width:360px}
.hotwords span{color:var(--muted);font-size:12px}
.hotwords a{font-size:12px;background:var(--blue-soft);color:var(--blue);border-radius:999px;padding:4px 8px}
.hotwords a:hover{background:#d5e6fa}
.channel-nav{border-top:1px solid #edf2f8}
.channel-nav .container{display:flex;align-items:center;gap:8px;min-height:52px}
.menu-toggle{border:1px solid var(--line);background:#fff;border-radius:12px;padding:6px 12px;font-weight:700;color:var(--blue)}
.channel-menu{display:flex;gap:6px;align-items:center}
.channel-link{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;color:var(--ink);font-weight:500}
.channel-link:hover{background:var(--blue-soft);color:var(--blue)}
.channel-link.active{background:var(--blue);color:#fff}
.hero-panel{position:relative;overflow:hidden;padding:54px 0 36px;background:#f7fbff}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.18}
.hero-inner{position:relative;z-index:1}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.benefit-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;box-shadow:var(--shadow);font-size:13px;font-weight:700;color:var(--blue)}
.hero-panel h1{font-size:46px;line-height:1.25;margin:0 0 14px;letter-spacing:.01em;max-width:820px}
.hero-lead{max-width:860px;color:#31445f;font-size:17px;margin-bottom:22px}
.elig-block{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:18px}
h2,.elig-block h2{font-size:30px;line-height:1.35;margin:0 0 10px}
.elig-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}
.elig-item{background:var(--blue-soft);border-radius:14px;padding:14px}
.elig-item strong{display:block;margin-bottom:4px}
.elig-item span,.section-head p,.elig-block p,.muted{color:var(--muted)}
.apply-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.apply-panel h3{margin:0 0 12px;font-size:20px}
.form-grid{display:grid;grid-template-columns:1.1fr 1.1fr .9fr auto;gap:10px;align-items:end}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.field input,.field select{width:100%;border:1px solid var(--line);background:#f9fbfe;border-radius:12px;padding:11px 12px;color:var(--ink)}
.field input:focus,.field select:focus{border-color:var(--blue-2);background:#fff;outline:none;box-shadow:0 0 0 3px rgba(47,111,190,.15)}
.btn-apply,.btn-ghost,.more-link,.device-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;font-weight:700;border:1px solid transparent;transition:.2s ease}
.btn-apply{background:var(--blue);color:#fff;box-shadow:0 10px 20px rgba(29,78,137,.2)}
.btn-apply:hover{background:#163e6e;color:#fff;transform:translateY(-2px)}
.btn-apply:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.block{padding:72px 0}
.block-a{background:#fff}
.block-b{background:var(--bg)}
.section-head{margin-bottom:22px;max-width:780px}
.section-head p,.elig-block p{margin:0}
.kicker{color:var(--blue-2);font-weight:700;font-size:13px;letter-spacing:.08em}
.rail-track{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
.rail-card{min-width:280px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;color:inherit}
.rail-card img,.bento-card img,.scene-photo img{width:100%;height:168px;object-fit:cover}
.rail-card div,.bento-card .pad{padding:14px 16px 16px}
.rail-card h3,.bento-card h3,.channel-tile h3,.collect-row h3,.bubble h3,.assure-item h3{font-size:18px;margin:0 0 6px}
.meta{color:var(--muted);font-size:13px;display:flex;gap:8px;flex-wrap:wrap}
.bento{display:grid;grid-template-columns:1.5fr .9fr;gap:16px}
.bento-side{display:grid;gap:16px}
.bento-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;height:100%}
.bento-main img{height:280px}
.channel-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;grid-auto-rows:1fr;gap:14px}
.channel-tile{display:flex;flex-direction:column;justify-content:space-between;min-height:180px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);color:inherit}
.channel-tile:hover{transform:translateY(-3px);border-color:#b9d0ea;color:inherit}
.channel-tile.wide{grid-row:span 2;background:linear-gradient(180deg,#fff,#eef5fd)}
.channel-tile i{font-size:22px;color:var(--blue)}
.collect-list{display:flex;flex-direction:column;gap:10px}
.collect-row{display:grid;grid-template-columns:72px 1fr auto;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px}
.count{font-weight:700;color:var(--blue);background:var(--blue-soft);border-radius:12px;padding:8px 10px;text-align:center}
.rank-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.rank-item{display:grid;grid-template-columns:56px 1fr auto;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px}
.rank-no{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--blue);color:#fff;font-weight:700}
.heat{font-weight:700;color:var(--blue)}
.news-layout{display:grid;grid-template-columns:1.5fr .8fr;gap:18px}
.news-row,.side-item{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;margin-bottom:12px;color:inherit;box-shadow:0 8px 20px rgba(20,50,90,.04)}
.news-row:hover,.side-item:hover{border-color:#b9d0ea;color:inherit}
.news-row h3{font-size:20px;margin:6px 0}
.side-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.empty-note{background:#fff;border:1px dashed var(--line);border-radius:16px;padding:18px;color:var(--muted)}
.more-link{margin-top:8px;background:var(--blue-soft);color:var(--blue)}
.more-link:hover{background:#d7e7f8}
.bubble-wall{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start}
.bubble{width:calc(33.33% - 8px);background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;box-shadow:var(--shadow)}
.bubble:nth-child(2n){border-bottom-left-radius:8px}
.bubble:nth-child(3n){width:calc(30% - 8px)}
.who{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(160deg,#7eb0ea,#1d4e89);color:#fff;font-weight:700}
.table-scroll{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.tier-table{width:100%;border-collapse:separate;border-spacing:0;min-width:680px}
.tier-table th,.tier-table td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tier-table th{background:#f8fbff;font-size:15px}
.tier-table .is-hot{background:var(--hot);box-shadow:inset 0 0 0 2px #9dc2ee}
.ribbon{display:inline-block;margin-left:6px;background:var(--blue);color:#fff;border-radius:999px;padding:2px 8px;font-size:12px}
.device-band{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.device-btn{background:#fff;border:1px solid var(--line);color:var(--ink);border-radius:18px;padding:18px;flex-direction:column;box-shadow:var(--shadow);min-height:140px}
.device-btn i{font-size:22px;color:var(--blue)}
.device-btn:hover{transform:translateY(-3px);color:var(--blue)}
.metric-band{position:relative;overflow:hidden;border-radius:28px;background:#163e6e;color:#fff;padding:28px}
.metric-bg,.close-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.18}
.metric-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.metric b{display:block;font-size:36px;line-height:1.1}
.metric span{color:#d5e4f7}
.topic-cloud{display:flex;flex-wrap:wrap;gap:10px}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 14px;color:var(--ink);box-shadow:0 6px 16px rgba(20,50,90,.04)}
.chip:hover{background:var(--blue);color:#fff}
.scene-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:center}
.scene-photo img{height:360px;border-radius:24px;object-fit:cover;box-shadow:var(--shadow)}
.assure-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.assure-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow)}
.assure-item i{color:var(--blue);font-size:20px}
.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-btn-focus-box-shadow:0 0 0 3px rgba(47,111,190,.15);--bs-accordion-active-bg:#e7f0fb;--bs-accordion-active-color:var(--blue)}
.accordion-item{border-radius:14px!important;overflow:hidden;margin-bottom:10px;border:1px solid var(--line);box-shadow:0 8px 18px rgba(20,50,90,.04)}
.accordion-button{font-weight:700}
.close-band{position:relative;overflow:hidden;border-radius:28px;padding:36px;background:#e7f0fb;border:1px solid #d3e3f6}
.close-inner{position:relative;z-index:1;display:flex;justify-content:space-between;gap:20px;align-items:center}
.site-footer{background:#10243f;color:#d5e1f0;padding:42px 0 24px}
.site-footer a{color:#d5e1f0}
.site-footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:20px}
.foot-name{font-size:22px;font-weight:700;color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:14px;color:#a9b9cc;font-size:13px}
@media (max-width:1024px){
  .hero-panel h1{font-size:38px}
  .bento,.news-layout,.scene-grid,.close-inner,.foot-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr 1fr}
  .channel-tile.wide{grid-row:auto}
  .form-grid{grid-template-columns:1fr 1fr}
  .hotwords{display:none}
  .bubble,.bubble:nth-child(3n){width:calc(50% - 8px)}
}
@media (max-width:768px){
  .block{padding:52px 0}
  .brand-row .container{flex-wrap:wrap}
  .search-form{order:3;flex-basis:100%}
  .elig-grid,.device-band,.metric-grid,.assure-bar{grid-template-columns:1fr 1fr}
  .channel-grid{grid-template-columns:1fr}
  .collect-row,.rank-item{grid-template-columns:52px 1fr}
  .count,.heat{grid-column:2}
  h2,.elig-block h2{font-size:26px}
}
@media (max-width:520px){
  .hero-panel{padding:32px 0 24px}
  .hero-panel h1{font-size:30px}
  .form-grid,.elig-grid,.device-band,.metric-grid,.assure-bar{grid-template-columns:1fr}
  .bubble,.bubble:nth-child(3n){width:100%}
  .hero-actions,.close-inner{flex-direction:column;align-items:stretch}
  .logo strong{font-size:18px}
}

/* roulang page: article */
:root{
  --blue:#1d4e89;
  --blue-2:#2f6fbe;
  --blue-soft:#e7f0fb;
  --ink:#14233a;
  --muted:#5d6d84;
  --line:#d9e3f0;
  --bg:#f5f8fc;
  --card:#ffffff;
  --hot:#e8f3ff;
  --shadow:0 14px 36px rgba(20,50,90,.08);
  --radius:18px;
  --bs-primary:#1d4e89;
  --bs-link-color:#1d4e89;
  --bs-body-color:#14233a;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--bg);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:#153a66}
button,input,select,textarea{font-family:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(47,111,190,.35);outline-offset:2px}
.container{max-width:1120px}
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 8px 24px rgba(20,50,90,.04)}
.brand-row{padding:12px 0 8px}
.brand-row .container{display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);min-width:148px}
.logo:hover{color:var(--blue)}
.logo-mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(160deg,#6ea2e4,#1d4e89);color:#fff;font-weight:700;box-shadow:var(--shadow)}
.logo strong{display:block;font-size:20px;letter-spacing:.04em;line-height:1.1}
.logo small{display:block;color:var(--muted);font-size:12px}
.search-form{flex:1;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 16px;min-width:0}
.search-form input{flex:1;border:0;background:transparent;min-width:0;padding:8px 0;color:var(--ink)}
.search-form input:focus{outline:none}
.search-form button{border:0;background:var(--blue);color:#fff;border-radius:999px;padding:8px 16px;font-weight:700}
.search-form button:hover{background:#163e6e}
.hotwords{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:12px}
.hotwords a{font-size:12px;background:var(--blue-soft);color:var(--blue);border-radius:999px;padding:4px 8px}
.hotwords a:hover{background:#d5e6fa}
.channel-nav{border-top:1px solid #edf2f8}
.channel-nav .container{display:flex;align-items:center;gap:8px;min-height:52px}
.menu-toggle{border:1px solid var(--line);background:#fff;border-radius:12px;padding:6px 12px;font-weight:700;color:var(--blue)}
.menu-toggle:hover{border-color:var(--blue)}
.channel-menu{display:flex;gap:6px;align-items:center}
.channel-link{display:inline-flex;align-items:center;padding:8px 14px;border-radius:999px;color:var(--ink);font-weight:700}
.channel-link:hover,.channel-link.active{background:var(--blue);color:#fff}
.hero-panel{position:relative;overflow:hidden;padding:42px 0 36px;background:#f7fbff}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.18}
.hero-inner{position:relative;z-index:1}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.benefit-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;box-shadow:var(--shadow);font-size:13px;font-weight:700;color:var(--blue)}
.hero-panel h1{font-size:36px;line-height:1.3;margin:0 0 12px;letter-spacing:.01em}
.hero-lead{color:#31445f;font-size:16px;margin:0 0 14px}
.meta{color:var(--muted);font-size:13px;display:flex;gap:8px;flex-wrap:wrap}
.kv-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .9fr;gap:22px;align-items:start}
.book-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.book-card h2{font-size:20px;margin:0 0 6px}
.book-card p{color:var(--muted);margin:0 0 12px;font-size:14px}
.slot-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.slot-btn{border:1px solid var(--line);background:#f9fbfe;border-radius:14px;padding:10px 12px;text-align:left;color:var(--ink);transition:.2s ease}
.slot-btn small{display:block;color:var(--muted);font-size:12px}
.slot-btn.is-on,.slot-btn:hover{border-color:var(--blue);background:var(--blue-soft);color:var(--blue)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:10px}
.field span{font-size:13px;font-weight:700}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);background:#f9fbfe;border-radius:12px;padding:11px 12px;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue-2);background:#fff;outline:none;box-shadow:0 0 0 3px rgba(47,111,190,.15)}
.btn-apply,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;font-weight:700;border:1px solid transparent;transition:.2s ease;cursor:pointer}
.btn-apply{background:var(--blue);color:#fff;box-shadow:0 10px 20px rgba(29,78,137,.2)}
.btn-apply:hover{background:#163e6e;color:#fff;transform:translateY(-2px)}
.btn-apply:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.form-note{display:none;margin-top:10px;background:var(--blue-soft);border-radius:12px;padding:10px 12px;color:var(--blue);font-size:14px}
.form-note.show{display:block}
main{display:block}
.section{padding:42px 0}
.section-alt{background:#fff}
.section-head{margin-bottom:18px;max-width:760px}
.section-head h2,.apply-bar h2,.book-card h2{letter-spacing:.01em}
.section-head p,.muted{color:var(--muted);margin:0}
.sheet{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 28px 12px}
.prose{font-size:17px;color:#24364f}
.prose h2{font-size:26px;margin:1.2em 0 .5em}
.prose h3{font-size:20px;margin:1em 0 .4em}
.prose p{margin:0 0 1em}
.prose img{border-radius:14px;margin:12px 0}
.prose ul,.prose ol{padding-left:1.2em}
.empty-box{padding:28px 8px 36px}
.empty-box p{font-size:20px;font-weight:700;margin-bottom:12px}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:center}
.photo-frame{position:relative;border-radius:22px;overflow:hidden;min-height:280px;box-shadow:var(--shadow)}
.photo-frame img{width:100%;height:100%;object-fit:cover;min-height:280px}
.photo-cap{position:absolute;left:14px;right:14px;bottom:14px;background:rgba(255,255,255,.92);border-radius:14px;padding:12px 14px}
.photo-cap strong{display:block}
.point-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.point-list li{display:grid;grid-template-columns:46px 1fr;gap:12px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px}
.point-ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue)}
.point-list h3{font-size:18px;margin:0 0 4px}
.point-list p{margin:0;color:var(--muted)}
.accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:10px;background:#fff}
.accordion-button{font-weight:700;color:var(--ink);background:#fff}
.accordion-button:not(.collapsed){background:var(--blue-soft);color:var(--blue);box-shadow:none}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(47,111,190,.15)}
.accordion-body{color:#31445f}
.wide-banner{position:relative;border-radius:22px;overflow:hidden;min-height:240px}
.wide-banner img{width:100%;height:280px;object-fit:cover}
.wide-card{position:absolute;right:18px;top:18px;bottom:18px;width:min(420px,92%);background:rgba(255,255,255,.95);border-radius:18px;padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center}
.wide-card h2{font-size:26px;margin:0 0 8px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.compare article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 8px;box-shadow:var(--shadow)}
.compare h3{margin:0 0 8px;font-size:18px}
.compare ul{margin:0;padding-left:18px;color:#31445f}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 8px 20px rgba(20,50,90,.04)}
.metric b{display:block;font-size:22px;color:var(--blue);line-height:1.2}
.metric span{color:var(--muted);font-size:13px}
.apply-bar{background:linear-gradient(180deg,#eef5fd,#f7fbff);border-top:1px solid var(--line);padding:28px 0}
.apply-inner{display:grid;grid-template-columns:.8fr 1.2fr;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:18px}
.apply-inner h2{margin:0 0 6px;font-size:26px}
.apply-form{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:10px;align-items:end}
.site-footer{background:#10243f;color:#d5e2f2;padding:42px 0 24px}
.site-footer a{color:#d5e2f2}
.site-footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:24px}
.foot-name{font-size:22px;font-weight:700;color:#fff;margin-bottom:8px}
.site-footer h3{font-size:16px;color:#fff;margin:0 0 8px}
.site-footer p{margin:0 0 8px}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:14px;color:#9eb0c8;font-size:13px}
@media (max-width:1024px){
  .kv-grid,.split,.compare,.apply-inner,.metric-grid{grid-template-columns:1fr 1fr}
  .apply-form{grid-template-columns:1fr 1fr}
  .wide-card{position:static;width:auto;margin-top:-48px}
  .hero-panel h1{font-size:32px}
}
@media (max-width:768px){
  .brand-row .container{flex-wrap:wrap}
  .search-form{order:3;flex:1 1 100%}
  .hotwords{display:none}
  .channel-menu{flex-direction:column;align-items:flex-start;padding-bottom:10px}
  .kv-grid,.split,.compare,.metric-grid,.foot-grid,.apply-inner,.apply-form{grid-template-columns:1fr}
  .hero-panel h1{font-size:28px}
  .sheet{padding:18px 16px 8px}
  .wide-banner img{height:200px}
}
@media (max-width:520px){
  .slot-grid{grid-template-columns:1fr}
  .logo strong{font-size:18px}
  .hero-panel{padding:28px 0 22px}
  .section{padding:32px 0}
}

/* roulang page: category1 */
:root{
  --blue:#1d4e89;
  --blue-2:#2f6fbe;
  --blue-soft:#e7f0fb;
  --ink:#14233a;
  --muted:#5d6d84;
  --line:#d9e3f0;
  --bg:#f5f8fc;
  --card:#ffffff;
  --hot:#e8f3ff;
  --shadow:0 14px 36px rgba(20,50,90,.08);
  --radius:18px;
  --bs-primary:#1d4e89;
  --bs-link-color:#1d4e89;
  --bs-body-color:#14233a;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
/* roulang page: category match-brief */
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--bg);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:#153a66}
button,input,select,textarea{font-family:inherit}
.container{max-width:1120px}
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 8px 24px rgba(20,50,90,.04)}
.brand-row{padding:12px 0 8px}
.brand-row .container{display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);min-width:148px}
.logo:hover{color:var(--blue)}
.logo-mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(160deg,#6ea2e4,#1d4e89);color:#fff;font-weight:700;box-shadow:var(--shadow)}
.logo strong{display:block;font-size:20px;letter-spacing:.04em;line-height:1.1}
.logo small{display:block;color:var(--muted);font-size:12px}
.search-form{flex:1;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 16px;min-width:0}
.search-form input{flex:1;border:0;background:transparent;min-width:0;padding:8px 0;color:var(--ink)}
.search-form input:focus{outline:none}
.search-form button{border:0;background:var(--blue);color:#fff;border-radius:999px;padding:8px 16px;font-weight:700}
.search-form button:hover{background:#163e6e}
.hotwords{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;white-space:nowrap}
.hotwords a{font-size:12px;background:var(--blue-soft);color:var(--blue);border-radius:999px;padding:4px 8px}
.hotwords a:hover{background:#d5e6fa}
.channel-nav{border-top:1px solid #edf2f8}
.channel-nav .container{display:flex;align-items:center;gap:8px;min-height:52px}
.menu-toggle{border:1px solid var(--line);background:#fff;border-radius:12px;padding:6px 12px;font-weight:700;color:var(--blue)}
.menu-toggle:hover,.menu-toggle:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px rgba(47,111,190,.15)}
.channel-menu{display:flex;gap:6px;align-items:center}
.channel-link{display:inline-flex;align-items:center;padding:8px 14px;border-radius:999px;color:var(--ink);font-weight:700}
.channel-link:hover{background:var(--blue-soft);color:var(--blue)}
.channel-link.active{background:var(--blue);color:#fff}
.channel-link:focus-visible{outline:3px solid rgba(47,111,190,.35);outline-offset:2px}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.benefit-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;box-shadow:var(--shadow);font-size:13px;font-weight:700;color:var(--blue)}
.hero-lead{max-width:640px;color:#31445f;font-size:17px;margin-bottom:22px}
.btn-apply,.btn-ghost,.more-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;font-weight:700;border:1px solid transparent;transition:.2s ease}
.btn-apply{background:var(--blue);color:#fff;box-shadow:0 10px 20px rgba(29,78,137,.2)}
.btn-apply:hover{background:#163e6e;color:#fff;transform:translateY(-2px)}
.btn-apply:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.block-a{background:#fff}
.section-head{margin-bottom:22px;max-width:780px}
.section-head h2,.assure-bar h2,.apply-copy h2,.faq-wrap h2,.metric-copy h2{font-size:32px;line-height:1.3;margin:0 0 8px}
.section-head p,.muted{color:var(--muted);margin:0}
.meta{color:var(--muted);font-size:13px;display:flex;gap:8px;flex-wrap:wrap}
.news-row{display:grid;grid-template-columns:168px 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;margin-bottom:12px;color:inherit;box-shadow:0 8px 20px rgba(20,50,90,.04)}
.news-row img{width:100%;height:112px;object-fit:cover;border-radius:12px}
.news-row:hover{border-color:#b9d0ea;color:inherit;transform:translateY(-2px)}
.news-row h3{font-size:20px;margin:6px 0}
.metric-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.site-footer{background:#10243f;color:#d5e2f2;padding:42px 0 20px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:24px}
.foot-name{font-size:22px;font-weight:700;color:#fff;margin-bottom:8px}
.site-footer a{color:#d5e2f2}
.site-footer a:hover{color:#fff}
.site-footer h3{color:#fff;font-size:16px;margin:0 0 8px}
.site-footer p{margin:0 0 8px}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:14px;color:#9eb0c8;font-size:13px}
.brief-hero{position:relative;overflow:hidden;padding:68px 0 56px;background:#f7fbff}
.brief-hero .hero-bg{opacity:.2}
.brief-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(245,248,252,.95) 0%,rgba(245,248,252,.84) 46%,rgba(245,248,252,.42) 100%)}
.hero-inner{position:relative;z-index:1}
.crumb{color:var(--muted);font-size:13px;margin-bottom:12px}
.crumb a{color:var(--blue);font-weight:700}
.brief-hero h1{font-size:46px;line-height:1.25;margin:0 0 14px;letter-spacing:.01em;max-width:640px}
.brief-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.video-frame{position:relative;border-radius:28px;overflow:hidden;min-height:340px;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.7)}
.video-frame img{width:100%;height:380px;object-fit:cover}
.video-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,36,70,.05),rgba(16,36,70,.62))}
.play-btn{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);z-index:2;width:78px;height:78px;border-radius:50%;border:0;background:rgba(255,255,255,.94);color:var(--blue);font-size:22px;box-shadow:0 12px 30px rgba(16,36,70,.25)}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06);background:#fff}
.play-btn:focus-visible{outline:3px solid #fff;outline-offset:3px}
.video-caption{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff}
.video-caption strong{display:block;font-size:18px}
.video-caption span{font-size:13px;opacity:.9}
.page-section{padding:68px 0}
.dim-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:28px;align-items:stretch}
.dim-lead{background:linear-gradient(180deg,#f8fbff,#fff);border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.dim-lead img{width:100%;height:230px;object-fit:cover}
.dim-lead div{padding:22px}
.dim-lead h2{font-size:32px;margin:0 0 8px}
.dim-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dim-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 16px 14px;box-shadow:0 8px 22px rgba(20,50,90,.04)}
.dim-item i{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:var(--hot);color:var(--blue);margin-bottom:8px}
.dim-item h3{font-size:17px;margin:0 0 4px}
.dim-item p{margin:0;color:var(--muted);font-size:14px}
.metric-band{position:relative;overflow:hidden;padding:64px 0;background:#163e6e;color:#fff}
.metric-band .hero-bg{opacity:.18}
.metric-band .container{position:relative;z-index:1}
.metric-copy{max-width:640px;margin-bottom:22px}
.metric-copy p{color:rgba(255,255,255,.82);margin:0}
.metric{background:rgba(255,255,255,.96);color:var(--ink);border-radius:18px;padding:18px 16px;box-shadow:var(--shadow)}
.metric b{display:block;font-size:28px;color:var(--blue);line-height:1.2}
.metric span{color:var(--muted);font-size:14px}
.flow-board{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:center}
.flow-photo{border-radius:28px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.flow-photo img{width:100%;height:420px;object-fit:cover}
.flow-photo span{position:absolute;left:14px;bottom:14px;background:#fff;border-radius:999px;padding:6px 12px;font-weight:700;color:var(--blue);font-size:13px}
.flow-steps{display:flex;flex-direction:column;gap:12px}
.flow-step{display:grid;grid-template-columns:64px 1fr;gap:12px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}
.flow-step em{font-style:normal;width:64px;height:64px;border-radius:16px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);font-weight:700}
.flow-step h3{margin:0 0 4px;font-size:18px}
.flow-step p{margin:0;color:var(--muted)}
.scene-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:14px}
.scene-card{position:relative;border-radius:24px;overflow:hidden;min-height:240px;border:1px solid var(--line);box-shadow:var(--shadow);color:#fff}
.scene-card img{width:100%;height:100%;object-fit:cover;min-height:240px}
.scene-card .mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,28,52,.05),rgba(12,28,52,.78));padding:18px;display:flex;flex-direction:column;justify-content:flex-end}
.level-badge{align-self:flex-start;background:rgba(255,255,255,.92);color:var(--blue);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:700;margin-bottom:8px}
.scene-card h3{margin:0 0 4px;font-size:22px}
.scene-card p{margin:0;color:rgba(255,255,255,.9)}
.scene-side{display:flex;flex-direction:column;gap:14px}
.scene-side .scene-card{min-height:180px}
.news-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-end;margin-bottom:18px}
.more-link{background:#fff;color:var(--blue);border-color:var(--line);padding:8px 14px}
.more-link:hover{border-color:var(--blue);color:var(--blue)}
.empty-note{background:#fff;border:1px dashed var(--line);border-radius:16px;padding:22px;color:var(--muted)}
.faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:28px;align-items:start}
.accordion-item{border:1px solid var(--line);border-radius:16px !important;overflow:hidden;margin-bottom:10px;background:#fff;box-shadow:0 8px 20px rgba(20,50,90,.04)}
.accordion-button{font-weight:700;color:var(--ink);background:#fff}
.accordion-button:not(.collapsed){background:var(--blue-soft);color:var(--blue);box-shadow:none}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(47,111,190,.15)}
.accordion-body{color:#31445f}
.assure-bar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.assure-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.assure-item{background:var(--bg);border-radius:16px;padding:16px;border:1px solid var(--line)}
.assure-item i{color:var(--blue);margin-bottom:6px}
.assure-item h3{font-size:16px;margin:0 0 4px}
.assure-item p{margin:0;color:var(--muted);font-size:14px}
.apply-panel{display:grid;grid-template-columns:1fr .9fr;gap:22px;background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.apply-copy{padding:28px}
.apply-photo img{width:100%;height:100%;object-fit:cover;min-height:320px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field{display:flex;flex-direction:column;gap:6px}
.field.wide{grid-column:1 / -1}
.field span{font-size:13px;font-weight:700}
.field input,.field select{width:100%;border:1px solid var(--line);background:#f9fbfe;border-radius:12px;padding:11px 12px;color:var(--ink)}
.field input:focus,.field select:focus{border-color:var(--blue-2);background:#fff;outline:none;box-shadow:0 0 0 3px rgba(47,111,190,.15)}
.modal-content{border:0;border-radius:22px;overflow:hidden}
.modal-hero img{width:100%;height:180px;object-fit:cover}
.modal-body h3{margin-top:0}
.brief-modal-list{margin:0;padding-left:18px;color:#31445f}
@media (min-width:992px){
  .channel-menu.collapse{display:flex !important;height:auto !important;visibility:visible}
}
@media (max-width:1024px){
  .brief-hero h1,.dim-lead h2,.section-head h2,.metric-copy h2,.faq-wrap h2,.apply-copy h2{font-size:30px}
  .metric-grid,.assure-row{grid-template-columns:1fr 1fr}
  .flow-board,.faq-wrap,.apply-panel,.dim-layout,.brief-hero-grid{grid-template-columns:1fr}
  .flow-photo img{height:260px}
}
@media (max-width:768px){
  .brand-row .container{flex-wrap:wrap}
  .search-form{order:3;flex:1 1 100%}
  .hotwords{order:4;flex:1 1 100%;overflow-x:auto}
  .brief-hero{padding:42px 0 32px}
  .brief-hero h1{font-size:32px}
  .page-section{padding:48px 0}
  .scene-grid,.news-row,.form-grid,.foot-grid{grid-template-columns:1fr}
  .news-head{flex-direction:column;align-items:flex-start}
  .video-frame img{height:240px}
  .dim-list{grid-template-columns:1fr}
}
@media (max-width:520px){
  .brief-hero h1{font-size:28px}
  .logo small{display:none}
  .metric-grid,.assure-row{grid-template-columns:1fr}
  .hero-actions .btn-apply,.hero-actions .btn-ghost{width:100%}
  .flow-step{grid-template-columns:52px 1fr}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}