/* roulang page: index */
:root{
  --c-primary:#0F766E;
  --c-primary-dark:#0A5A54;
  --c-primary-light:#E6F4F1;
  --c-primary-hl:#4FD1C5;
  --c-accent:#FF7A45;
  --c-accent-light:#FFF0E8;
  --c-title:#10201D;
  --c-text:#44534F;
  --c-muted:#7C8C88;
  --c-bg:#F7FAF9;
  --c-surface:#FFFFFF;
  --c-line:#E4EBE8;
  --c-dark:#10201D;
  --r-card:14px;
  --r-btn:999px;
  --r-sm:10px;
  --r-xs:8px;
  --sh-card:0 1px 2px rgba(16,32,29,.04),0 4px 12px rgba(16,32,29,.05);
  --sh-hover:0 8px 24px rgba(16,32,29,.10);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--c-title);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--c-primary-dark);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary);}
img{max-width:100%;display:block;border:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
table{border-collapse:collapse;width:100%;}
time{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid rgba(15,118,110,.45);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,32,29,.07);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:32px;height:32px;border-radius:8px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 32px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--c-title);white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-primary-dark);}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:6px;}
.nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--c-text);padding:22px 0;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .2s ease;}
.nav-link:hover{color:var(--c-primary-dark);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:12px;color:var(--c-muted);pointer-events:none;}
.nav-search input{width:200px;height:36px;border-radius:999px;border:1px solid transparent;background:#F2F6F5;padding:0 14px 0 34px;font-size:14px;transition:background .2s,border-color .2s,box-shadow .2s;}
.nav-search input::placeholder{color:#93A5A1;}
.nav-search input:focus{outline:0;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,118,110,.14);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;align-items:center;justify-content:center;color:var(--c-title);}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(16,32,29,.42);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:80;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;padding:18px 20px 24px;box-shadow:-10px 0 34px rgba(16,32,29,.14);overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:44px;height:44px;border:0;background:transparent;color:var(--c-text);display:flex;align-items:center;justify-content:center;border-radius:10px;}
.drawer-close:hover{background:var(--c-primary-light);color:var(--c-primary);}
.drawer-links{padding:8px 0 0;}
.drawer-links a{display:block;font-size:18px;font-weight:500;color:var(--c-title);padding:15px 4px;border-bottom:1px solid var(--c-line);}
.drawer-links a.is-active{color:var(--c-primary);}
.drawer-links a:hover{color:var(--c-primary);}
.drawer-cta{margin-top:auto;padding-top:24px;}
body.no-scroll{overflow:hidden;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 26px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:15px;font-weight:600;line-height:1.3;text-align:center;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(15,118,110,.24);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px rgba(15,118,110,.2);}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-light{background:#fff;color:var(--c-primary-dark);}
.btn-light:hover{background:#fff;color:var(--c-primary-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.2);}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.62);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;border-color:#fff;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;border:0;background:none;padding:0;font-size:14.5px;font-weight:600;color:var(--c-primary);}
.btn-text svg{transition:transform .2s ease;}
.btn-text:hover{color:var(--c-primary-dark);}
.btn-text:hover svg{transform:translateX(4px);}
.badge{display:inline-block;font-size:12.5px;font-weight:600;line-height:1.4;color:var(--c-primary);background:var(--c-primary-light);border-radius:999px;padding:4px 11px;font-variant-numeric:tabular-nums;}
.badge-accent{color:#C2470F;background:var(--c-accent-light);}
.tag{display:inline-block;font-size:12.5px;line-height:1.4;color:var(--c-text);background:#F2F6F5;border:1px solid var(--c-line);border-radius:999px;padding:4px 11px;}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;background-image:linear-gradient(90deg,rgba(8,74,69,.95) 0%,rgba(15,118,110,.88) 42%,rgba(15,118,110,.42) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;overflow:hidden;}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;min-height:520px;padding:64px 0 72px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--c-accent);color:#fff;font-size:13px;font-weight:600;border-radius:999px;padding:6px 14px;}
.hero-title{font-size:44px;line-height:1.25;letter-spacing:-.6px;color:#fff;margin-top:22px;font-weight:800;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.88);max-width:520px;}
.hero-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px 24px;font-size:14px;color:rgba(255,255,255,.86);}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta svg{flex:0 0 auto;opacity:.9;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;background:#fff;border-radius:16px;padding:10px;box-shadow:0 20px 44px rgba(5,32,29,.26);}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;}
.hero-visual-badge{position:absolute;top:-14px;right:-8px;background:var(--c-accent);color:#fff;font-size:12.5px;font-weight:700;border-radius:999px;padding:8px 14px;box-shadow:0 8px 20px rgba(255,122,69,.35);white-space:nowrap;}

/* ---------- stats ---------- */
.stat-bar{background:#fff;border-bottom:1px solid var(--c-line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:26px 0;}
.stat-item{padding:6px 12px;text-align:center;border-right:1px solid var(--c-line);}
.stat-item:last-child{border-right:0;}
.stat-num{display:block;font-size:32px;font-weight:800;color:var(--c-primary);line-height:1.25;font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.stat-num small{font-size:16px;font-weight:700;margin-left:2px;}
.stat-label{display:block;margin-top:6px;font-size:13.5px;color:var(--c-muted);}

/* ---------- sections ---------- */
.section{padding:80px 0;}
.section--surface{background:#fff;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px;}
.section-title{font-size:30px;line-height:1.35;letter-spacing:-.3px;}
.section-desc{margin-top:12px;font-size:15px;color:var(--c-muted);max-width:660px;}

/* ---------- feature ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.feature-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D3E4E0;}
.feature-icon{width:44px;height:44px;border-radius:12px;background:var(--c-primary-light);color:var(--c-primary);display:flex;align-items:center;justify-content:center;margin-bottom:18px;}
.feature-card h3{font-size:18px;margin-bottom:10px;}
.feature-card p{font-size:14.5px;line-height:1.8;color:var(--c-text);}

/* ---------- tabs / timeline ---------- */
.ver-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 32px;border:0;background:transparent;}
.ver-tabs .tabs-title{margin:0;float:none;}
.ver-tabs .tabs-title>a{display:block;padding:9px 20px;border-radius:999px;border:1px solid var(--c-line);background:#fff;font-size:14.5px;font-weight:600;color:var(--c-text);transition:all .2s ease;}
.ver-tabs .tabs-title>a:hover{color:var(--c-primary);border-color:var(--c-primary);background:#fff;}
.ver-tabs .tabs-title.is-active>a{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.tabs-content{border:0;background:transparent;margin:0;}
.tabs-content .tabs-panel{padding:0;outline:0;}
.tl{margin-top:4px;}
.tl-item{display:grid;grid-template-columns:84px 1fr;column-gap:24px;}
.tl-time{padding-top:2px;}
.tl-badge{display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-light);border-radius:999px;padding:5px 11px;white-space:nowrap;font-variant-numeric:tabular-nums;}
.tl-body{position:relative;border-left:2px solid rgba(15,118,110,.2);padding:0 0 28px 28px;}
.tl-body::before{content:"";position:absolute;left:-7px;top:7px;width:10px;height:10px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px var(--c-primary-light);}
.tl-item:last-child .tl-body{border-left-color:transparent;padding-bottom:0;}
.tl-title{font-size:19px;margin-bottom:6px;}
.tl-meta{font-size:14px;color:var(--c-muted);}
.tl-tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}
.tl-item.is-hl .tl-body{background:var(--c-primary-light);border-radius:0 12px 12px 0;padding:16px 22px 24px 28px;}
.tl-item.is-hl .tl-body::before{top:22px;}

/* ---------- game cards ---------- */
.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.game-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease;}
.game-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.game-cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-light);}
.game-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.game-card:hover .game-cover img{transform:scale(1.04);}
.game-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.game-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.game-name{font-size:18px;}
.game-desc{font-size:14.5px;line-height:1.8;color:var(--c-text);}
.game-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--c-muted);}

/* ---------- plans ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);align-items:start;}
.plan{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:30px 24px 26px;box-shadow:var(--sh-card);transition:box-shadow .22s ease,transform .22s ease;}
.plan:hover{box-shadow:var(--sh-hover);}
.plan.is-featured{border:2px solid var(--c-primary);transform:translateY(-8px);box-shadow:0 14px 34px rgba(15,118,110,.16);}
.plan-ribbon{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--c-accent);color:#fff;font-size:12.5px;font-weight:700;border-radius:999px;padding:6px 16px;white-space:nowrap;}
.plan-name{font-size:19px;}
.plan-note{margin-top:8px;font-size:13.5px;color:var(--c-muted);}
.plan-price{margin-top:18px;font-size:32px;font-weight:800;color:var(--c-title);line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.plan-price small{font-size:14px;font-weight:600;color:var(--c-muted);margin-left:6px;letter-spacing:0;}
.plan-list{margin:22px 0 26px;}
.plan-row{display:flex;align-items:flex-start;gap:10px;min-height:44px;padding:11px 0;border-bottom:1px solid var(--c-line);font-size:14.5px;line-height:1.6;}
.plan-row:last-child{border-bottom:0;}
.plan-row svg{flex:0 0 auto;margin-top:3px;}
.plan-row.is-off{color:var(--c-muted);}
.plan .btn{margin-top:auto;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.news-card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform .22s ease,box-shadow .22s ease;}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-light);}
.news-cover img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{font-size:17px;font-weight:600;line-height:1.55;}
.news-title a{color:var(--c-title);}
.news-title a:hover{color:var(--c-primary);}
.news-link::after{content:"";position:absolute;inset:0;}
.news-desc{font-size:14px;line-height:1.75;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-muted);}
.news-card--lead{grid-column:span 2;display:grid;grid-template-columns:1.05fr 1fr;}
.news-card--lead .news-cover{aspect-ratio:auto;height:100%;min-height:260px;}
.news-card--lead .news-body{padding:28px 28px 26px;}
.news-card--lead .news-title{font-size:22px;line-height:1.45;}
.news-card--lead .news-desc{font-size:14.5px;-webkit-line-clamp:3;}
.empty-state{min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;border:1px dashed #C4D6D2;border-radius:var(--r-card);background:#fff;color:var(--c-muted);font-size:15px;text-align:center;padding:24px;}
.empty-state svg{color:#9DB5B1;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{margin:0;border:0;background:transparent;}
.accordion .accordion-item{background:#fff;border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;}
.accordion .accordion-item:hover{border-color:#D0E2DE;box-shadow:var(--sh-card);}
.accordion .accordion-item.is-active{border-color:var(--c-primary);}
.accordion .accordion-title{position:relative;display:block;padding:18px 54px 18px 20px;border:0;font-size:16px;font-weight:600;color:var(--c-title);transition:color .2s ease;}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{color:var(--c-primary);background:#fff;}
.accordion .accordion-title::before{content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);transform:translateY(-70%) rotate(45deg);transition:transform .25s ease,border-color .25s ease;}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-30%) rotate(-135deg);border-color:var(--c-primary);}
.accordion .accordion-item.is-active .accordion-title::after{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--c-primary);}
.accordion .accordion-content{padding:2px 20px 20px;border-top:1px solid var(--c-line);font-size:15px;line-height:1.85;color:var(--c-text);}
.accordion .accordion-content p+p{margin-top:12px;}

/* ---------- cta ---------- */
.cta-band{background:var(--c-dark);color:#fff;padding:76px 0;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start;}
.cta-title{font-size:30px;line-height:1.35;color:#fff;}
.cta-lead{margin-top:14px;font-size:15.5px;line-height:1.85;color:#B9C7C3;max-width:520px;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#D6E1DE;}
.cta-points svg{flex:0 0 auto;margin-top:5px;color:var(--c-primary-hl);}
.cta-note{margin-top:26px;font-size:13.5px;color:#8A9B97;}
.cta-form{background:#fff;border-radius:16px;padding:28px;box-shadow:0 18px 44px rgba(0,0,0,.22);}
.cta-form h3{font-size:19px;margin-bottom:6px;}
.cta-form .form-lead{font-size:13.5px;color:var(--c-muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:500;color:var(--c-text);margin-bottom:6px;}
.field .req{color:var(--c-accent);}
.input,.select{width:100%;height:44px;border:1px solid #DDE6E3;border-radius:var(--r-sm);background:#fff;padding:0 14px;font-size:15px;color:var(--c-title);transition:border-color .2s ease,box-shadow .2s ease;}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%237C8C88' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;}
.input:focus,.select:focus{outline:0;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,118,110,.16);}
.form-foot{margin-top:6px;display:flex;justify-content:flex-end;}
.form-tip{margin-top:14px;font-size:12.5px;color:var(--c-muted);line-height:1.7;}
.form-ok{margin-top:14px;display:none;font-size:13.5px;color:#0A5A54;background:var(--c-primary-light);border-radius:var(--r-sm);padding:10px 14px;}
.form-ok.is-show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:#B9C7C3;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#9FB0AC;max-width:330px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#B9C7C3;}
.footer-col a:hover{color:var(--c-primary-hl);}
.footer-contact li{font-size:14px;color:#B9C7C3;margin-bottom:10px;line-height:1.7;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:#8A9B97;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right{margin-left:auto;}
  .hero-inner{grid-template-columns:1fr;gap:36px;min-height:0;padding:52px 0 60px;}
  .hero-title{font-size:36px;}
  .hero-visual{max-width:560px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item{border-right:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:18px 12px;}
  .stat-item:nth-child(2n){border-right:0;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-bottom:0;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .game-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card--lead{grid-column:span 2;grid-template-columns:1fr;}
  .news-card--lead .news-cover{aspect-ratio:16/9;min-height:0;height:auto;}
  .plan-grid{grid-template-columns:1fr;max-width:560px;}
  .plan.is-featured{transform:none;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 28px;}
  .section{padding:60px 0;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .nav-wrap{height:62px;gap:14px;}
  .brand-text{font-size:16px;}
  .hero-inner{padding:40px 0 48px;}
  .hero-title{font-size:28px;letter-spacing:-.3px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-visual-badge{right:0;font-size:12px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px;}
  .section-title{font-size:24px;}
  .stat-num{font-size:26px;}
  .feature-grid,.game-grid,.news-grid{grid-template-columns:1fr;}
  .news-card--lead{grid-column:span 1;}
  .news-card--lead .news-title{font-size:19px;}
  .news-card--lead .news-body{padding:20px;}
  .tl-item{grid-template-columns:1fr;row-gap:10px;background:#fff;border:1px solid var(--c-line);border-radius:12px;padding:16px;margin-bottom:12px;}
  .tl-body{border-left:0;padding:0;}
  .tl-body::before{display:none;}
  .tl-item:last-child .tl-body{padding-bottom:0;}
  .tl-item:last-child{margin-bottom:0;}
  .tl-item.is-hl{background:var(--c-primary-light);border-color:var(--c-primary);}
  .tl-item.is-hl .tl-body{padding:0;background:transparent;border-radius:0;}
  .plan{padding:24px 20px 22px;}
  .cta-band{padding:52px 0;}
  .cta-title{font-size:24px;}
  .cta-form{padding:22px 18px;}
  .form-foot{justify-content:stretch;}
  .form-foot .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F766E;
  --c-primary-dark:#0A5A54;
  --c-primary-soft:#E6F4F1;
  --c-primary-bright:#4FD1C5;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFF0E8;
  --c-ink:#10201D;
  --c-text:#44534F;
  --c-muted:#7C8C88;
  --c-bg:#F7FAF9;
  --c-surface:#FFFFFF;
  --c-line:#E4EBE8;
  --r-card:14px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,32,29,.04),0 4px 12px rgba(16,32,29,.05);
  --sh-card-hover:0 8px 24px rgba(16,32,29,.10);
  --sh-header:0 2px 12px rgba(16,32,29,.07);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px;
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary-dark);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid rgba(15,118,110,.45);outline-offset:2px;border-radius:6px;}
body.no-scroll{overflow:hidden;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-header);}
.header-inner{
  height:68px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:8px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 2px 6px rgba(15,118,110,.28);
}
.brand-text{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-primary);}

.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;flex:1;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--c-text);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  position:relative;display:flex;align-items:center;
  width:200px;height:36px;background:#F2F6F5;border:1px solid transparent;border-radius:var(--r-pill);
  padding:0 14px;gap:8px;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box svg{flex-shrink:0;color:var(--c-muted);}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;height:100%;
  font-size:14px;color:var(--c-ink);
}
.search-box input::placeholder{color:#97A5A1;}
.search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(15,118,110,.16);}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  align-items:center;justify-content:center;color:var(--c-ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 26px;border-radius:var(--r-pill);
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  min-height:44px;text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 2px 8px rgba(15,118,110,.22);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(15,118,110,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 1px 4px rgba(15,118,110,.24);}
.btn-secondary{background:#fff;border-color:var(--c-primary);color:var(--c-primary);border-radius:var(--r-btn);}
.btn-secondary:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-sm{padding:10px 20px;font-size:14px;min-height:40px;}
.btn-block{display:flex;width:100%;}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;
  background:#EFF7F5 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,250,249,.97) 0%,rgba(247,250,249,.93) 42%,rgba(247,250,249,.72) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.hero-inner{padding:40px 0 48px;max-width:760px;}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);margin-bottom:20px;
}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#B9C5C1;}
.crumb .current{color:var(--c-text);}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-accent-soft);color:#C2542B;
  font-size:13px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
  margin-bottom:16px;letter-spacing:.2px;
}
.hero-title{
  font-size:42px;line-height:1.25;letter-spacing:-.6px;margin-bottom:16px;
}
.hero-sub{font-size:17px;line-height:1.75;color:var(--c-text);max-width:640px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;
  font-size:14px;color:var(--c-muted);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta svg{color:var(--c-primary);flex-shrink:0;}

/* ---------- 筛选条 ---------- */
.filter-bar{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.filter-inner{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:20px 0;
}
.filter-label{font-size:14px;color:var(--c-muted);margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;
  font-size:14px;font-weight:500;color:var(--c-text);
  cursor:pointer;transition:all .2s ease;min-height:40px;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.chip.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}
.chip.is-current:hover{background:var(--c-primary-dark);color:#fff;}

/* ---------- 主体 ---------- */
.section{padding:72px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;
}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head .sub{font-size:15px;color:var(--c-muted);margin-top:10px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);
}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(4px);}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:#D3E2DE;}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.2px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
}
.badge-accent{background:var(--c-accent-soft);color:#C2542B;}
.card h3{font-size:17px;line-height:1.55;font-weight:600;}
.card:hover h3{color:var(--c-primary);}
.card p{font-size:14px;line-height:1.75;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);margin-top:auto;padding-top:4px;
}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6D2CE;}
.card-link{position:absolute;inset:0;z-index:2;text-indent:-9999px;overflow:hidden;}

.card--feature{grid-column:span 2;flex-direction:row;}
.card--feature .card-thumb{aspect-ratio:16/10;flex:0 0 48%;}
.card--feature .card-body{padding:28px 30px;justify-content:center;gap:14px;}
.card--feature h3{font-size:22px;line-height:1.45;}
.card--feature p{font-size:15px;line-height:1.8;-webkit-line-clamp:3;}

/* 分页 */
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin-top:48px;}
.page-btn{
  min-width:44px;height:44px;padding:0 14px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--c-text);font-weight:500;
  transition:all .2s ease;
}
.page-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.page-btn.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}
.page-btn.is-current:hover{background:var(--c-primary-dark);color:#fff;}
.page-btn[aria-disabled="true"]{opacity:.45;pointer-events:none;}
.page-info{font-size:14px;color:var(--c-muted);margin-left:8px;}

/* 横条 CTA */
.cta-strip-wrap{padding:0 0 72px;}
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--c-primary-soft);
  border:1px solid #CDE7E2;
  border-radius:var(--r-card);
  padding:26px 32px;
}
.cta-strip h2{font-size:20px;line-height:1.5;font-weight:700;}
.cta-strip .cta-note{font-size:14px;color:var(--c-text);margin-top:6px;}
.cta-strip .btn{flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#B9C6C2;padding:64px 0 0;margin-top:8px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand:hover .brand-text{color:var(--c-primary-bright);}
.footer-desc{font-size:14px;line-height:1.8;color:#93A29E;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.2px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:#B9C6C2;}
.footer-col a:hover{color:var(--c-primary-bright);}
.footer-contact li{font-size:14px;line-height:1.75;color:#93A29E;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;font-size:13px;color:#7E8D89;
}

/* ---------- 移动端抽屉 ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(16,32,29,.42);z-index:80;
  opacity:0;transition:opacity .22s ease;
}
.drawer-overlay.is-open{opacity:1;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .24s ease;
  display:flex;flex-direction:column;
  padding:18px 20px 24px;box-shadow:-8px 0 28px rgba(16,32,29,.14);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink);}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:#fff;border-radius:10px;color:var(--c-ink);cursor:pointer;
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-nav{display:flex;flex-direction:column;padding:10px 0;flex:1;}
.drawer-nav a{
  font-size:18px;color:var(--c-ink);padding:14px 2px;border-bottom:1px solid var(--c-line);
}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:600;}
.drawer-nav a:hover{color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .header-inner{gap:16px;}
  .nav-links{gap:20px;}
  .search-box{width:160px;}
  .hero-title{font-size:34px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .card--feature{grid-column:span 2;flex-direction:column;}
  .card--feature .card-thumb{aspect-ratio:16/9;flex:none;}
  .card--feature .card-body{padding:22px;}
  .card--feature h3{font-size:19px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-strip-wrap{padding-bottom:56px;}
}
@media screen and (max-width:900px){
  .nav-links,.search-box,.header-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media screen and (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .header-inner{height:62px;}
  .brand-text{font-size:16px;}
  .hero-inner{padding:28px 0 36px;}
  .hero-title{font-size:28px;line-height:1.3;}
  .hero-sub{font-size:15.5px;}
  .hero-meta{font-size:13px;gap:8px 16px;margin-top:20px;}
  .section{padding:44px 0;}
  .section-head{margin-bottom:24px;}
  .section-head h2{font-size:22px;}
  .card-grid{grid-template-columns:1fr;gap:16px;}
  .card--feature{grid-column:span 1;}
  .card--feature h3{font-size:18px;}
  .card--feature p{font-size:14px;-webkit-line-clamp:2;}
  .filter-inner{padding:16px 0;gap:10px;}
  .filter-label{width:100%;margin:0 0 2px;}
  .chip{padding:8px 14px;font-size:13.5px;}
  .cta-strip{padding:22px 20px;flex-direction:column;align-items:flex-start;}
  .cta-strip .btn{width:100%;}
  .cta-strip-wrap{padding-bottom:44px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .pagination{gap:6px;margin-top:32px;}
  .page-btn{min-width:40px;height:40px;font-size:14px;padding:0 11px;}
  .page-info{width:100%;text-align:center;margin:8px 0 0;}
}

/* roulang page: article */
/* ================= 设计变量 ================= */
:root{
  --c-primary:#0F766E;
  --c-primary-dark:#0A5A54;
  --c-primary-light:#E6F4F1;
  --c-primary-bright:#4FD1C5;
  --c-accent:#FF7A45;
  --c-accent-light:#FFF0E8;
  --t-title:#10201D;
  --t-body:#44534F;
  --t-muted:#7C8C88;
  --c-bg:#F7FAF9;
  --c-surface:#FFFFFF;
  --c-line:#E4EBE8;
  --c-input-line:#DDE6E3;
  --r-lg:16px;
  --r-card:14px;
  --r-btn:10px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,32,29,.04),0 4px 12px rgba(16,32,29,.05);
  --sh-hover:0 8px 24px rgba(16,32,29,.10);
  --sh-nav:0 2px 12px rgba(16,32,29,.07);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:40px;--sp-6:56px;--sp-7:72px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font);font-weight:700;color:var(--t-title);margin:0;}
p{margin:0;}
ul,ol{margin:0;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary-dark);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--c-primary);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid rgba(15,118,110,.45);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.tabular{font-variant-numeric:tabular-nums;}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav);}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:8px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--t-title);line-height:1;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--t-body);padding:6px 0;line-height:1.4;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--c-primary-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{
  display:flex;align-items:center;gap:8px;width:200px;height:36px;padding:0 14px;
  border-radius:var(--r-pill);background:#F1F5F4;border:1px solid transparent;transition:.2s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,118,110,.14);}
.search-box svg{color:var(--t-muted);flex:0 0 auto;}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--t-title);}
.search-box input::placeholder{color:#9AA9A5;}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  border:1px solid var(--c-line);border-radius:10px;background:#fff;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-title);transition:.2s ease;}

/* ================= 按钮与徽章 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;min-height:44px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(15,118,110,.25);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.btn-light{background:#fff;color:var(--t-title);}
.btn-light:hover{background:var(--c-primary-light);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:36px;}
.btn-block{width:100%;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--c-primary-light);color:var(--c-primary-dark);
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary);}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(4px);}

/* ================= 页头 / 面包屑 ================= */
.article-head{
  background:linear-gradient(180deg,#F1F8F6 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
  padding:24px 0 30px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-muted);margin-bottom:18px;}
.breadcrumb a{color:var(--t-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C9D4D1;}
.breadcrumb .current{color:#93A29E;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:34px;line-height:1.35;font-weight:700;letter-spacing:-.3px;
  color:var(--t-title);margin:14px 0 16px;max-width:880px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;font-size:13px;color:var(--t-muted);}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C9D4D1;display:inline-block;}

/* ================= 主体布局 ================= */
.article-shell{padding:40px 0 72px;}
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 220px;
  column-gap:56px;
  max-width:1040px;margin:0 auto;
}
.layout.no-toc{grid-template-columns:minmax(0,760px);justify-content:center;}
.article-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:40px 44px;
}
.article-body{font-size:16px;line-height:1.9;color:var(--t-body);word-wrap:break-word;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.45;color:var(--t-title);
  margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:19px;line-height:1.5;color:var(--t-title);margin:28px 0 12px;}
.article-body h4{font-size:17px;line-height:1.55;color:var(--t-title);margin:24px 0 10px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px;line-height:1.85;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--c-primary-light);
  border-left:3px solid var(--c-primary);
  border-radius:0 10px 10px 0;
  color:#2E4B46;font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px auto;max-width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{font-size:13px;color:var(--t-muted);text-align:center;margin-top:10px;line-height:1.7;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:10px;overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;line-height:1.7;}
.article-body th{background:#F3F8F7;font-weight:600;color:var(--t-title);}
.article-body a{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-primary);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}
.article-body code{
  background:#F1F5F4;border-radius:6px;padding:2px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#2E4B46;
}
.article-body pre{
  background:#10201D;color:#DDEBE8;border-radius:12px;padding:18px 20px;
  overflow:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:260px;border:1px dashed var(--c-line);border-radius:var(--r-card);
  background:#FBFDFC;text-align:center;padding:32px 20px;
}
.empty-state svg{color:var(--c-primary);opacity:.65;}
.empty-state p{font-size:15.5px;color:var(--t-muted);}

/* ================= 右侧目录 ================= */
.article-aside{position:relative;}
.toc{position:sticky;top:92px;max-height:calc(100vh - 130px);overflow-y:auto;padding-right:4px;}
.toc-title{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--t-muted);margin-bottom:12px;}
.toc-list{list-style:none;padding:0;margin:0;border-left:2px solid var(--c-line);}
.toc-list li a{
  display:block;padding:7px 12px;font-size:13.5px;line-height:1.6;color:var(--t-muted);
  border-left:2px solid transparent;margin-left:-2px;
}
.toc-list li a:hover{color:var(--c-primary-dark);}
.toc-list li a.is-active{
  color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);
  background:linear-gradient(90deg,var(--c-primary-light),transparent);
}
.toc-list li.toc-sub a{padding-left:26px;font-size:13px;}

/* ================= 标签 ================= */
.tag-section{margin-top:36px;padding-top:26px;border-top:1px solid var(--c-line);}
.tag-label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--t-muted);margin-bottom:12px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;
  font-size:13px;color:var(--t-body);transition:.2s ease;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary-dark);background:var(--c-primary-light);}

/* ================= 上下篇 ================= */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px;}
.post-nav a{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#CFE4E0;}
.post-nav .pn-next{align-items:flex-end;text-align:right;}
.pn-label{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--t-muted);font-weight:600;}
.pn-title{font-size:16px;font-weight:600;color:var(--t-title);line-height:1.55;}

/* ================= 相关推荐 ================= */
.related{margin-top:56px;}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px;}
.related-head h2{font-size:22px;line-height:1.4;}
.rel-grid{margin-left:-12px;margin-right:-12px;}
.rel-grid > .cell{padding-left:12px;padding-right:12px;}
.rel-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-light);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-body h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--t-title);}
.rel-body p{font-size:13.5px;line-height:1.75;color:var(--t-muted);flex:1;}
.rel-time{font-size:12.5px;color:var(--t-muted);}
.rel-badge{align-self:flex-start;}

/* ================= 订阅条 ================= */
.subscribe-bar{
  margin-top:56px;padding:28px 32px;border-radius:var(--r-lg);
  background:#10201D;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.subscribe-bar .sb-text h2{font-size:20px;line-height:1.45;color:#fff;margin-bottom:6px;}
.subscribe-bar .sb-text p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.7;}
.subscribe-bar .sb-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ================= 页脚 ================= */
.site-footer{background:#10201D;color:#9FB2AD;padding:64px 0 0;margin-top:80px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .brand{margin-bottom:4px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-desc{font-size:13.5px;line-height:1.85;color:#8FA5A0;margin-top:16px;max-width:320px;}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#9FB2AD;font-size:13.5px;}
.footer-col a:hover{color:var(--c-primary-bright);}
.footer-contact li{line-height:1.7;font-size:13.5px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:#7F938E;
}

/* ================= 移动端抽屉 ================= */
.mobile-drawer{
  position:fixed;top:0;right:0;width:84%;max-width:340px;height:100%;
  background:#fff;z-index:120;padding:20px 22px 28px;overflow-y:auto;
  transform:translateX(105%);transition:transform .28s ease;
  box-shadow:-10px 0 34px rgba(16,32,29,.14);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--t-title);
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 2px;font-size:17px;color:var(--t-title);font-weight:500;
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:600;}
.drawer-nav a:last-child{border-bottom:0;}
.drawer-cta{margin-top:24px;}
.drawer-tip{margin-top:16px;font-size:13px;color:var(--t-muted);line-height:1.75;}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(16,32,29,.42);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
body.drawer-open{overflow:hidden;}

/* ================= 响应式 ================= */
@media (max-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr);max-width:800px;column-gap:0;}
  .article-aside{display:none;}
  .article-panel{padding:34px 32px;}
  .article-title{font-size:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:900px){
  .nav-links{display:none;}
  .search-box{display:none;}
  .header-actions{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:16px;}
}
@media (max-width:768px){
  .article-shell{padding:28px 0 56px;}
  .article-title{font-size:28px;}
  .related-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .rel-grid > .cell{margin-bottom:20px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .article-head{padding:18px 0 24px;}
  .article-panel{padding:24px 18px;border-radius:12px;}
  .article-title{font-size:28px;line-height:1.4;}
  .article-body h2{font-size:21px;margin:32px 0 14px;}
  .article-body h3{font-size:17.5px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .pn-next{align-items:flex-start;text-align:left;}
  .subscribe-bar{padding:24px 20px;}
  .subscribe-bar .sb-actions{width:100%;}
  .subscribe-bar .sb-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-desc{max-width:none;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media (max-width:520px){
  .breadcrumb .current{max-width:200px;}
  .brand-text{font-size:15.5px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F766E;
  --c-primary-d:#0A5A54;
  --c-primary-l:#E6F4F1;
  --c-primary-hi:#4FD1C5;
  --c-accent:#FF7A45;
  --c-accent-l:#FFF0E8;
  --c-title:#10201D;
  --c-text:#44534F;
  --c-muted:#7C8C88;
  --c-bg:#F7FAF9;
  --c-surface:#FFFFFF;
  --c-line:#E4EBE8;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(16,32,29,.04),0 4px 12px rgba(16,32,29,.05);
  --sh-2:0 8px 24px rgba(16,32,29,.10);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:40px; --sp-6:56px; --sp-7:80px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--c-bg);color:var(--c-text);font-family:var(--font);
  font-size:16px;line-height:1.85;font-weight:400;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary-d);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
body.body--drawer{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-title);font-family:var(--font);font-weight:700;letter-spacing:-.2px}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--tight{padding:56px 0}
.section--surface{background:var(--c-surface)}
::selection{background:var(--c-primary-hi);color:#062b28}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,32,29,.08)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:8px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--c-title);white-space:nowrap}
.brand:hover .brand-text{color:var(--c-primary-d)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;
  color:var(--c-text);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;width:200px;height:36px;padding:0 12px;
  background:#F1F5F4;border:1px solid transparent;border-radius:var(--r-pill);
  color:var(--c-muted);transition:background .2s,border-color .2s,box-shadow .2s;
}
.search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,118,110,.12)}
.search-box svg{flex:0 0 auto}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--c-title);
  height:34px;padding:0;box-shadow:none!important;
}
.search-box input::placeholder{color:var(--c-muted)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;
  border-radius:var(--r-sm);align-items:center;justify-content:center;flex-direction:column;gap:5px;
  cursor:pointer;padding:0;transition:border-color .2s,background .2s;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-title);border-radius:2px;transition:transform .2s,opacity .2s}
.nav-toggle:hover{border-color:var(--c-primary);background:var(--c-primary-l)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,29,.45);z-index:90;opacity:0;
  transition:opacity .25s ease;
}
.drawer-mask.is-show{opacity:1}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;background:#fff;z-index:100;
  transform:translateX(102%);transition:transform .28s ease;padding:20px;
  display:flex;flex-direction:column;gap:6px;box-shadow:-8px 0 32px rgba(16,32,29,.14);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);
  font-size:20px;line-height:1;color:var(--c-text);cursor:pointer;
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-link{
  display:block;padding:14px 4px;font-size:18px;font-weight:500;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.drawer-link.is-active{color:var(--c-primary);font-weight:700}
.drawer-link:hover{color:var(--c-primary)}
.drawer-cta{margin-top:auto;padding-top:20px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;text-align:center;cursor:pointer;
  border-radius:var(--r-btn);padding:12px 26px;border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .18s ease,box-shadow .2s ease;
  min-height:44px;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);border-radius:var(--r-pill)}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(15,118,110,.24)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);border-color:var(--c-primary)}
.btn-text{background:none;border:0;color:var(--c-primary);padding:8px 0;font-weight:600;min-height:auto;border-radius:0}
.btn-text .arw{display:inline-block;transition:transform .2s ease}
.btn-text:hover{color:var(--c-primary-d)}
.btn-text:hover .arw{transform:translateX(4px)}
.btn-sm{padding:9px 18px;font-size:14px;min-height:36px}
.btn-block{display:flex;width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid rgba(15,118,110,.45);outline-offset:2px;border-radius:6px;
}
.button,.button.primary,.button.secondary{
  background:var(--c-primary);color:#fff;border-radius:var(--r-pill);font-weight:600;
}
.button:hover{background:var(--c-primary-d);color:#fff}

/* ---------- Page head ---------- */
.page-head{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:36px 0 32px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:16px;flex-wrap:wrap}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C7D3D0}
.breadcrumb .current{color:var(--c-muted)}
.page-head h1{font-size:36px;line-height:1.3;max-width:860px}
.page-sub{margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-text);max-width:760px}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;background:var(--c-primary-l);color:var(--c-primary-d);
}
.tag--accent{background:var(--c-accent-l);color:#B34A1B}

/* ---------- Layout ---------- */
.layout{display:flex;gap:32px;align-items:flex-start}
.subnav-col{flex:0 0 25%;max-width:25%}
.entry-col{flex:1 1 auto;min-width:0}
.subnav{
  position:sticky;top:92px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);
}
.subnav-title{font-size:12px;letter-spacing:.14em;color:var(--c-muted);font-weight:600;margin:0 0 12px}
.subnav-link{
  display:block;padding:9px 12px;border-radius:var(--r-sm);font-size:14px;color:var(--c-text);
  border-left:2px solid transparent;transition:background .2s,color .2s,border-color .2s;
}
.subnav-link:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.subnav-link.is-active{background:var(--c-primary-l);color:var(--c-primary-d);font-weight:600;border-left-color:var(--c-primary)}
.subnav-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line)}

/* ---------- Entry list ---------- */
.entry-group{margin-bottom:56px}
.entry-group:last-child{margin-bottom:0}
.group-title{font-size:26px;line-height:1.4;margin-bottom:8px}
.group-title .bar{
  display:block;width:40px;height:4px;border-radius:2px;background:var(--c-primary);margin-bottom:14px;
}
.group-desc{font-size:15px;color:var(--c-muted);line-height:1.8;max-width:720px;margin-bottom:12px}
.entry-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:8px 20px;box-shadow:var(--sh-1)}
.entry{
  display:flex;gap:20px;align-items:flex-start;padding:20px 16px;margin:0 -16px;
  border-radius:var(--r-card);border-bottom:1px solid var(--c-line);transition:background .2s ease;
}
.entry:last-child{border-bottom:0}
.entry:hover{background:var(--c-primary-l);border-bottom-color:transparent}
.entry-thumb{
  flex:0 0 160px;width:160px;aspect-ratio:8/5;border-radius:var(--r-sm);overflow:hidden;
  background:var(--c-primary-l);display:block;
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.entry:hover .entry-thumb img{transform:scale(1.04)}
.entry-body{flex:1 1 auto;min-width:0}
.entry-title{font-size:20px;line-height:1.5;margin-bottom:6px;font-weight:600}
.entry-title a{color:var(--c-title)}
.entry:hover .entry-title a{color:var(--c-primary-d)}
.entry-sum{
  font-size:14px;line-height:1.75;color:var(--c-text);margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--c-muted)}
.entry-meta .dot{width:3px;height:3px;border-radius:50%;background:#C7D3D0;display:inline-block}
.entry-meta .cat{color:var(--c-primary-d);background:var(--c-primary-l);padding:2px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:500}

/* ---------- FAQ ---------- */
.faq-group{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.faq-item{
  border:1px solid var(--c-line);border-radius:12px;background:#fff;margin-bottom:12px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:last-child{margin-bottom:0}
.faq-item[open]{border-color:var(--c-primary);box-shadow:0 4px 14px rgba(16,32,29,.06)}
.faq-item summary{
  display:flex;align-items:center;gap:12px;cursor:pointer;list-style:none;
  padding:16px 18px;font-size:16px;font-weight:600;color:var(--c-title);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary);opacity:0;transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{
  content:"";width:8px;height:8px;margin-left:auto;flex:0 0 auto;
  border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);
  transform:rotate(45deg);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--c-primary)}
.faq-body{padding:0 18px 18px;font-size:15px;line-height:1.85;color:var(--c-text)}
.faq-body p{margin:0}

/* ---------- Tail ---------- */
.tail{padding:0 0 80px}
.tail-card{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px 32px;box-shadow:var(--sh-1);
}
.tail-card h2{font-size:22px;margin-bottom:10px}
.tail-card p{font-size:14px;color:var(--c-muted);margin:0 0 16px;max-width:640px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--r-pill);
  border:1.5px solid var(--c-line);font-size:14px;font-weight:500;color:var(--c-text);background:#fff;
  transition:border-color .2s,color .2s,background .2s,transform .2s;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:var(--c-primary-l);transform:translateY(-1px)}

/* ---------- Footer ---------- */
.site-footer{background:#10201D;color:#C6D3CF;padding:64px 0 0;font-size:14px;line-height:1.8}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-primary)}
.footer-brand .brand-text{color:#fff}
.footer-desc{color:#9FB0AB;font-size:14px;line-height:1.8;margin:0;max-width:320px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:#C6D3CF;font-size:14px;transition:color .2s ease}
.footer-col a:hover{color:var(--c-primary-hi)}
.footer-contact li{color:#9FB0AB}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#8A9A96;
}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .search-box{width:170px}
}
@media (max-width:1023.98px){
  .nav-links,.search-box{display:none}
  .nav-toggle{display:flex}
  .layout{flex-direction:column;gap:32px}
  .subnav-col{display:none}
  .entry-col{width:100%}
  .entry{flex-direction:column;gap:14px}
  .entry-thumb{flex:0 0 auto;width:100%;max-width:420px;aspect-ratio:16/9}
  .entry-list{padding:8px 16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:44px 0}
  .page-head{padding:26px 0 24px}
  .page-head h1{font-size:28px;line-height:1.32}
  .page-sub{font-size:15px}
  .group-title{font-size:22px}
  .entry-title{font-size:17px}
  .entry{padding:18px 12px;margin:0 -12px}
  .entry-list{padding:6px 12px}
  .faq-group{padding:20px 16px}
  .faq-item summary{font-size:15px;padding:14px}
  .tail-card{padding:24px 20px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{width:100%}
  .btn-text{width:auto}
}