/* roulang page: index */
:root{
  --c-primary:#2C55D8;
  --c-primary-deep:#1E3EA8;
  --c-jade:#14A08C;
  --c-accent:#FF6B4A;
  --c-ink:#1B2337;
  --c-ink-2:#5A6480;
  --c-line:#E3E8F4;
  --c-bg:#F7F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F4FC;
  --c-success:#17A673;
  --r-card:16px;
  --r-img:12px;
  --r-btn:999px;
  --r-badge:8px;
  --sh-1:0 8px 24px rgba(28,45,90,.08);
  --sh-2:0 14px 36px rgba(28,45,90,.14);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-bottom:72px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding-top:var(--sp-section);padding-bottom:var(--sp-section)}
.section-alt{background:var(--c-surface-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--c-jade);background:#E9F7F4;border:1px solid #CBE9E3;border-radius:var(--r-btn);padding:4px 14px;margin-bottom:16px}
.sec-title{font-size:clamp(24px,2.6vw,36px);line-height:1.28;font-weight:700;letter-spacing:-.01em}
.sec-desc{margin-top:14px;color:var(--c-ink-2);font-size:16px;line-height:1.8}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(44,85,216,.24)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:scale(1.02)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:#F5F7FE}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.26)}
.btn-accent:hover{background:#E9583A;color:#fff;transform:scale(1.02)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:6px 10px;border-radius:var(--r-badge);background:#E9F7F4;border:1px solid #C6E8E1;color:#0E7C6C}
.badge-primary{background:#EDF1FE;border-color:#D3DDFB;color:var(--c-primary-deep)}
.badge-accent{background:#FFEFEB;border-color:#FFD5C9;color:#D8452A}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}

/* header */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120}
.nav-shell{
  max-width:1200px;margin:0 auto;padding:8px 12px 8px 20px;
  display:flex;align-items:center;gap:20px;
  background:#FFFFFF;background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.96);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:baseline;gap:6px;flex:0 0 auto;line-height:1.2}
.brand-mark{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-primary);font-family:inherit}
.brand-sub{font-size:13px;font-weight:600;color:var(--c-ink-2)}
.brand:hover .brand-mark{color:var(--c-primary-deep)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{position:relative;display:inline-block;padding:9px 15px;font-size:14px;font-weight:500;color:var(--c-ink-2);border-radius:var(--r-btn);transition:all .2s ease}
.nav-menu a:hover{color:var(--c-primary);background:#F1F4FC}
.nav-menu a.active{color:var(--c-primary);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:16px;height:3px;border-radius:3px;background:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);font-size:16px;cursor:pointer}

/* hero */
.hero{position:relative;padding-top:150px;padding-bottom:76px;background:var(--c-bg);overflow:hidden}
.hero::before{content:"";position:absolute;top:-120px;right:-160px;width:520px;height:520px;border-radius:50%;background:#E9EEFC;opacity:.75;z-index:0}
.hero::after{content:"";position:absolute;bottom:-180px;left:-140px;width:420px;height:420px;border-radius:50%;background:#EDF7F5;opacity:.8;z-index:0}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:700;letter-spacing:-.02em;margin:14px 0 0;color:var(--c-ink)}
.hero-sub{font-size:clamp(16px,1.5vw,19px);font-weight:600;color:var(--c-primary);margin-top:14px;line-height:1.6}
.hero-text{margin-top:18px;color:var(--c-ink-2);font-size:16px;line-height:1.85;max-width:600px}
.check-list{margin:22px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px 18px}
.check-list li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--c-ink);line-height:1.6}
.check-list i{color:var(--c-jade);font-size:14px;margin-top:5px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:34px;margin-top:36px;padding-top:26px;border-top:1px dashed var(--c-line)}
.hero-metrics .m-num{font-size:26px;font-weight:800;color:var(--c-ink);line-height:1.2}
.hero-metrics .m-num span{font-size:14px;font-weight:700;color:var(--c-primary);margin-left:2px}
.hero-metrics .m-label{font-size:13px;color:var(--c-ink-2);margin-top:2px}
.hero-visual{position:relative}
.hero-figure{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--c-line);background:#fff}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.hero-figure .fig-cap{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;background:linear-gradient(180deg,rgba(27,35,55,0) 0%,rgba(27,35,55,.72) 100%);color:#fff;font-size:13px;font-weight:500}
.float-card{position:absolute;background:#fff;border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--sh-2);padding:12px 14px;display:flex;gap:10px;align-items:center;width:236px}
.float-card .fc-ip{width:38px;height:38px;border-radius:10px;background:#EDF1FE;color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 auto}
.float-card .fc-title{font-size:13px;font-weight:700;color:var(--c-ink);line-height:1.3}
.float-card .fc-desc{font-size:12px;color:var(--c-ink-2);line-height:1.4}
.float-card.one{right:-14px;top:-18px}
.float-card.two{left:-18px;bottom:-22px}
.float-card.two .fc-ip{background:#FFEFEB;color:var(--c-accent)}

/* filter tabs */
.quickbar{padding:0 0 20px;margin-top:-24px;position:relative;z-index:2}
.quickbar-inner{display:flex;flex-wrap:wrap;gap:10px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);padding:10px;box-shadow:var(--sh-1)}
.quickbar a{display:inline-flex;align-items:center;gap:8px;padding:9px 20px;font-size:14px;font-weight:600;color:var(--c-ink-2);border-radius:var(--r-btn);transition:all .2s ease}
.quickbar a:hover{background:#F1F4FC;color:var(--c-primary)}
.quickbar a i{color:var(--c-jade);font-size:13px}

/* features */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature-card{position:relative;padding:32px 26px 28px;overflow:hidden}
.feature-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary)}
.feature-card.jade::before{background:var(--c-jade)}
.feature-card.accent::before{background:var(--c-accent)}
.feature-icon{width:46px;height:46px;border-radius:12px;background:#EDF1FE;color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px}
.feature-card.jade .feature-icon{background:#E7F6F3;color:var(--c-jade)}
.feature-card.accent .feature-icon{background:#FFEFEB;color:var(--c-accent)}
.feature-card h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--c-ink-2);line-height:1.75;margin:0}

/* scene */
.scene-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.point-list{margin-top:22px;display:grid;gap:16px}
.point-list li{display:flex;gap:14px;align-items:flex-start}
.point-list .p-num{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:#EDF1FE;color:var(--c-primary);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px}
.point-list .p-title{font-size:15px;font-weight:600;color:var(--c-ink)}
.point-list .p-text{font-size:14px;color:var(--c-ink-2);line-height:1.7}
.ui-mock{background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--sh-2);overflow:hidden}
.ui-mock-top{display:flex;align-items:center;gap:8px;padding:14px 16px;border-bottom:1px solid var(--c-line);background:#FAFBFE}
.ui-dot{width:9px;height:9px;border-radius:50%;background:#D9E0F2}
.ui-tabs{display:flex;gap:8px;padding:14px 16px;border-bottom:1px solid var(--c-line);flex-wrap:wrap}
.ui-tabs span{font-size:13px;font-weight:600;color:var(--c-ink-2);padding:5px 13px;border-radius:var(--r-btn);background:#F1F4FC}
.ui-tabs span.on{background:var(--c-primary);color:#fff}
.ui-row{display:flex;gap:12px;align-items:center;padding:13px 16px;border-bottom:1px solid var(--c-line)}
.ui-row:last-of-type{border-bottom:0}
.ui-row img{width:64px;height:64px;object-fit:cover;flex:0 0 auto}
.ui-row .ui-name{font-size:14px;font-weight:600;color:var(--c-ink);line-height:1.4}
.ui-row .ui-meta{font-size:12px;color:var(--c-ink-2);line-height:1.5;margin-top:2px}
.ui-row .ui-tag{margin-left:auto;flex:0 0 auto}
.ui-foot{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#FAFBFE;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2)}
.ui-foot .btn{height:36px;padding:0 16px;font-size:13px}

/* rail */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:#D6DEF0;border-radius:99px}
.rail-card{flex:0 0 300px;scroll-snap-align:start;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}
.rail-card img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:0}
.rail-body{padding:16px 18px 18px}
.rail-body h3{font-size:16px;font-weight:600;line-height:1.45;margin-bottom:6px}
.rail-body p{font-size:13px;color:var(--c-ink-2);line-height:1.7;margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.rail-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-ink-2)}

/* timeline */
.timeline{display:grid;gap:14px}
.timeline li{display:flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--c-line);border-left:3px solid var(--c-jade);border-radius:14px;padding:16px 22px;transition:background .2s ease,transform .2s ease,box-shadow .2s ease}
.timeline li:hover{background:#FAFBFE;transform:translateX(3px);box-shadow:var(--sh-1)}
.date-block{flex:0 0 auto;text-align:center;min-width:64px}
.date-block .d-day{font-size:23px;font-weight:800;color:var(--c-primary);line-height:1.1}
.date-block .d-mon{font-size:12px;color:var(--c-ink-2);margin-top:2px}
.tl-main{flex:1 1 auto;min-width:0}
.tl-main .tl-title{font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.45}
.tl-main .tl-sub{font-size:13px;color:var(--c-ink-2);margin-top:4px;display:flex;flex-wrap:wrap;gap:14px}
.tl-main .tl-sub i{color:var(--c-jade);margin-right:5px}
.tl-tag{flex:0 0 auto}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative}
.steps::before{content:"";position:absolute;top:38px;left:12%;right:12%;border-top:2px dashed #D3DDFB;z-index:0}
.step{position:relative;z-index:1;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1)}
.step .s-num{font-size:34px;font-weight:800;color:#D3DDFB;line-height:1;letter-spacing:-.02em}
.step h3{font-size:17px;font-weight:600;margin:12px 0 8px}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin:0}

/* voices */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.voice{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.voice:nth-child(2){transform:translateY(22px)}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:42px;height:42px;border-radius:50%;background:#EDF1FE;color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto}
.voice-name{font-size:14px;font-weight:600;line-height:1.3}
.voice-city{font-size:12px;color:var(--c-ink-2);margin-top:2px}
.voice p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin:0}

/* stats band */
.stats-band{background:var(--c-ink);color:#fff;padding:56px 0}
.stats-band .sec-title{color:#fff}
.stats-band .sec-desc{color:#AEB7CE}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:36px}
.stat-item{border-left:3px solid rgba(255,255,255,.16);padding-left:18px}
.stat-item .s-num{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1.1;color:#fff}
.stat-item .s-num em{font-style:normal;font-size:16px;font-weight:700;color:var(--c-accent);margin-left:3px}
.stat-item .s-label{font-size:13px;color:#AEB7CE;margin-top:6px}

/* compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.cmp-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:30px 28px;box-shadow:var(--sh-1)}
.cmp-card.muted{background:#FAFBFE}
.cmp-card.highlight{border:1px solid rgba(44,85,216,.45);box-shadow:var(--sh-2)}
.cmp-card h3{font-size:18px;font-weight:700;margin-bottom:18px}
.cmp-card.muted h3{color:var(--c-ink-2)}
.cmp-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;padding:9px 0;border-bottom:1px dashed #E8EDF8;color:var(--c-ink-2)}
.cmp-list li:last-child{border-bottom:0}
.cmp-list i{margin-top:4px;font-size:13px}
.cmp-card.muted .cmp-list i{color:#B6BFD4}
.cmp-card.highlight .cmp-list li{color:var(--c-ink)}
.cmp-card.highlight .cmp-list i{color:var(--c-jade)}

/* cms list */
.list-layout{display:grid;grid-template-columns:1.6fr .9fr;gap:28px;align-items:start}
.post-list{display:grid;gap:14px}
.post-row{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:14px 18px;transition:background .2s ease,box-shadow .2s ease}
.post-row:hover{background:var(--c-surface-2);box-shadow:var(--sh-1)}
.post-row .p-cover{width:120px;height:72px;flex:0 0 auto;border-radius:var(--r-img);object-fit:cover}
.post-row .p-main{flex:1 1 auto;min-width:0}
.post-row .p-title{font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.post-row .p-desc{font-size:13px;color:var(--c-ink-2);line-height:1.7;margin-top:5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-row .p-side{flex:0 0 auto;text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.post-row .p-time{font-size:12px;color:var(--c-ink-2)}
.post-row .p-arrow{color:#C3CCE2;font-size:13px;opacity:0;transition:opacity .2s ease,transform .2s ease}
.post-row:hover .p-arrow{opacity:1;transform:translateX(3px)}
.side-panel{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.side-head{padding:16px 20px;border-bottom:1px solid var(--c-line);font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px}
.side-head i{color:var(--c-jade)}
.side-item{display:block;padding:14px 20px;border-bottom:1px dashed #E8EDF8;transition:background .2s ease}
.side-item:last-child{border-bottom:0}
.side-item:hover{background:#FAFBFE}
.side-item .si-title{font-size:14px;font-weight:600;color:var(--c-ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-item .si-meta{font-size:12px;color:var(--c-ink-2);margin-top:5px}
.empty-state{text-align:center;padding:48px 24px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card)}
.empty-state i{font-size:26px;color:#C3CCE2;margin-bottom:12px;display:block}
.empty-state p{font-size:14px;color:var(--c-ink-2);margin:0 0 18px}

/* faq */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:rgba(44,85,216,.35);box-shadow:var(--sh-1)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 54px 18px 22px;position:relative;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.55}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:24px;top:50%;width:9px;height:9px;border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:translateY(-70%) rotate(45deg);transition:transform .25s ease}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq-body{padding:0 22px 20px;font-size:14px;color:var(--c-ink-2);line-height:1.85;margin:0}

/* safety */
.safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.safety-item{padding:28px 24px;border-right:1px solid var(--c-line)}
.safety-item:last-child{border-right:0}
.safety-item i{font-size:19px;color:var(--c-jade);margin-bottom:12px;display:block}
.safety-item h3{font-size:16px;font-weight:600;margin-bottom:8px}
.safety-item p{font-size:13px;color:var(--c-ink-2);line-height:1.75;margin:0}

/* cta */
.cta-card{background:#EEF2FF;border:1px solid #D8E1FB;border-radius:24px;padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700}
.cta-card p{font-size:15px;color:var(--c-ink-2);line-height:1.8;margin:12px 0 0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* footer */
.site-footer{background:var(--c-ink);color:#C7CEDF;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .f-logo{display:flex;align-items:baseline;gap:6px;margin-bottom:16px}
.footer-brand .f-logo b{font-size:19px;font-weight:800;color:#fff}
.footer-brand .f-logo span{font-size:13px;color:#8E99B4}
.footer-brand p{font-size:13px;line-height:1.85;color:#98A3BC;margin:0}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13px;color:#A6B0C7}
.footer-col a:hover{color:var(--c-jade)}
.footer-contact li{font-size:13px;color:#A6B0C7;margin-bottom:10px;display:flex;gap:9px;align-items:flex-start;line-height:1.7}
.footer-contact i{color:var(--c-jade);margin-top:5px;font-size:12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8E99B4}
.footer-bottom a{color:#8E99B4}
.footer-bottom a:hover{color:var(--c-jade)}

/* fixed bar */
.fixed-bar{position:fixed;left:0;right:0;bottom:0;z-index:110;background:#fff;border-top:1px solid var(--c-line);box-shadow:0 -8px 24px rgba(28,45,90,.08)}
.fixed-bar-inner{max-width:1200px;margin:0 auto;height:72px;padding:0 20px;display:flex;align-items:center;gap:20px}
.fixed-bar-text{font-size:14px;color:var(--c-ink-2);flex:1 1 auto;min-width:0}
.fixed-bar-text b{color:var(--c-ink)}
.fixed-bar .btn{height:42px;padding:0 22px;font-size:14px}
.fixed-close{width:34px;height:34px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);cursor:pointer;flex:0 0 auto;transition:all .2s ease}
.fixed-close:hover{color:var(--c-primary);border-color:var(--c-primary)}
.fixed-bar.hide{display:none}

/* responsive */
@media (max-width:1199px){
  .rail-card{flex-basis:280px}
}
@media (max-width:991px){
  :root{--sp-section:64px}
  .nav-menu{position:absolute;top:calc(100% + 10px);left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:2px;background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--sh-2);padding:10px}
  .nav-shell.open .nav-menu{display:flex}
  .nav-menu a{padding:13px 16px;font-size:15px;border-radius:12px}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{background:#F1F4FC}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .hero{padding-top:120px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1}
  .float-card{display:none}
  .grid-3,.grid-4,.voice-grid,.steps,.stats-grid,.safety-grid{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .scene-grid{grid-template-columns:1fr;gap:36px}
  .compare{grid-template-columns:1fr}
  .list-layout{grid-template-columns:1fr}
  .voice:nth-child(2){transform:none}
  .safety-item:nth-child(2n){border-right:0}
  .safety-item{border-bottom:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 28px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  body{font-size:15px;padding-bottom:66px}
  .hero{padding-top:104px;padding-bottom:56px}
  .hero::before,.hero::after{display:none}
  .check-list{grid-template-columns:1fr}
  .hero-metrics{gap:22px}
  .hero-cta .btn{flex:1 1 100%}
  .grid-3,.grid-4,.voice-grid,.steps,.stats-grid,.safety-grid{grid-template-columns:1fr}
  .safety-item{border-right:0}
  .quickbar-inner{border-radius:18px;padding:8px}
  .quickbar a{flex:1 1 45%;justify-content:center;padding:9px 8px;font-size:13px}
  .rail-card{flex-basis:250px}
  .timeline li{flex-wrap:wrap;gap:12px;padding:14px 16px}
  .tl-tag{margin-left:auto}
  .post-row{flex-wrap:wrap}
  .post-row .p-cover{width:100%;height:auto;aspect-ratio:16/9}
  .post-row .p-side{flex-direction:row;align-items:center;width:100%;justify-content:space-between}
  .post-row .p-arrow{display:none}
  .cta-card{padding:28px 22px;border-radius:18px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr}
  .fixed-bar-inner{height:auto;min-height:66px;padding:10px 14px;gap:12px}
  .fixed-bar-text{font-size:12px;line-height:1.5}
  .fixed-bar .btn{height:38px;padding:0 16px;font-size:13px}
  .sec-head{margin-bottom:28px}
}

/* roulang page: article */
:root{
  --c-primary:#2C55D8;
  --c-primary-deep:#1E3EA8;
  --c-jade:#14A08C;
  --c-accent:#FF6B4A;
  --c-ink:#1B2337;
  --c-ink-2:#5A6480;
  --c-line:#E3E8F4;
  --c-bg:#F7F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F4FC;
  --c-success:#17A673;
  --r-card:16px;
  --r-img:12px;
  --r-btn:999px;
  --r-badge:8px;
  --sh-1:0 8px 24px rgba(28,45,90,.08);
  --sh-2:0 14px 36px rgba(28,45,90,.14);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
button{font-family:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink)}
p{margin:0}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap;line-height:1}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(44,85,216,.24)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:scale(1.02)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:#F5F7FE}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn:focus-visible,.nav-menu a:focus-visible,.nav-toggle:focus-visible,a:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:6px 10px;border-radius:var(--r-badge);background:#E9F7F4;border:1px solid #C6E8E1;color:#0E7C6C}
.badge-primary{background:#EDF1FE;border-color:#D3DDFB;color:var(--c-primary-deep)}
.badge-accent{background:#FFEFEB;border-color:#FFD5C9;color:#D8452A}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}

/* ---------- header ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120}
.nav-shell{
  position:relative;
  max-width:1200px;margin:0 auto;padding:8px 12px 8px 20px;
  display:flex;align-items:center;gap:20px;
  background:#FFFFFF;
  background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.97);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:baseline;gap:6px;flex:0 0 auto;line-height:1.2}
.brand-mark{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-primary)}
.brand-sub{font-size:13px;font-weight:600;color:var(--c-ink-2)}
.brand:hover .brand-mark{color:var(--c-primary-deep)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{position:relative;display:inline-block;padding:9px 15px;font-size:14px;font-weight:500;color:var(--c-ink-2);border-radius:var(--r-btn);transition:all .2s ease}
.nav-menu a:hover{color:var(--c-primary);background:#F1F4FC}
.nav-menu a.active{color:var(--c-primary);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:16px;height:3px;border-radius:3px;background:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);font-size:16px;cursor:pointer;align-items:center;justify-content:center}

/* ---------- article shell ---------- */
.article-shell{padding-top:122px;padding-bottom:72px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--c-ink-2);line-height:1.6}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B9C2D8}
.breadcrumb .cur{color:var(--c-ink);font-weight:500;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;margin-top:20px}

/* article head */
.article-head{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:30px 32px 26px}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.article-head h1{font-size:clamp(25px,3.1vw,38px);line-height:1.32;font-weight:700;letter-spacing:-.01em;margin-top:16px;color:var(--c-ink)}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:20px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-jade);font-size:13px}
.article-cover{margin-top:22px;border:1px solid var(--c-line);border-radius:var(--r-img);overflow:hidden;background:var(--c-surface-2)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}

/* article body */
.article-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:34px 34px 38px;margin-top:22px}
.article-content{max-width:790px;font-size:16px;line-height:1.85;color:#2C3552}
.article-content h1{font-size:26px;margin:0 0 16px}
.article-content h2{font-size:clamp(20px,2vw,25px);line-height:1.42;margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--c-primary);color:var(--c-ink)}
.article-content h3{font-size:19px;line-height:1.45;margin:26px 0 10px;color:var(--c-ink)}
.article-content h4{font-size:17px;margin:22px 0 8px;color:var(--c-ink)}
.article-content h2:first-child,.article-content h3:first-child{margin-top:0}
.article-content p{margin:0 0 18px}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:24px}
.article-content li{margin-bottom:8px;line-height:1.75}
.article-content li::marker{color:var(--c-jade)}
.article-content strong{color:var(--c-ink);font-weight:700}
.article-content blockquote{margin:0 0 20px;padding:16px 20px;border-left:4px solid var(--c-jade);background:#F3FAF8;border-radius:0 12px 12px 0;color:#33405C}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{margin:6px auto 8px;border-radius:var(--r-img);border:1px solid var(--c-line)}
.article-content figure{margin:0 0 20px}
.article-content figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;line-height:1.7}
.article-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--c-primary-deep)}
.article-content code{background:#EEF2FB;color:var(--c-primary-deep);padding:2px 6px;border-radius:6px;font-size:14px}
.article-content pre{background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:12px;padding:16px;overflow:auto;margin:0 0 20px}
.article-content pre code{background:none;padding:0;color:#2C3552}
.article-content table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:14.5px}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:10px 12px;text-align:left}
.article-content th{background:var(--c-surface-2);font-weight:600}
.article-content hr{border:none;border-top:1px solid var(--c-line);margin:28px 0}

/* empty */
.empty-state{text-align:center;padding:56px 20px}
.empty-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--c-surface-2);color:var(--c-primary);font-size:24px}
.empty-state p{font-size:16px;color:var(--c-ink-2);margin-bottom:20px}

/* related */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.block-head h2{font-size:clamp(20px,2.1vw,26px);line-height:1.35}
.block-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-jade);background:#E9F7F4;border:1px solid #CBE9E3;border-radius:var(--r-btn);padding:4px 14px;margin-bottom:10px}
.related-section{margin-top:44px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rel-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}
.rel-card .rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2)}
.rel-card .rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.rel-card .rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{font-size:15.5px;line-height:1.55;font-weight:600;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover h3{color:var(--c-primary-deep)}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--c-ink-2);margin-top:auto}

/* pager */
.pager-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:36px}
.pager-card{display:flex;align-items:center;gap:14px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:18px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}
.pager-card .p-arrow{width:38px;height:38px;flex:0 0 auto;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--c-surface-2);color:var(--c-primary);font-size:14px}
.pager-card .p-label{font-size:12.5px;color:var(--c-ink-2);line-height:1.4}
.pager-card .p-title{font-size:15px;font-weight:600;color:var(--c-ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.pager-card.next{text-align:right;flex-direction:row-reverse}

/* back */
.back-cta{margin-top:36px;text-align:center}
.back-cta p{font-size:14px;color:var(--c-ink-2);margin-bottom:16px}

/* sidebar */
.sidebar{position:sticky;top:104px;display:grid;gap:18px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px 22px}
.side-card h3{font-size:15px;font-weight:700;color:var(--c-ink);display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3 i{color:var(--c-jade);font-size:14px}
.side-nav{list-style:none;display:grid;gap:6px}
.side-nav a{display:block;font-size:14px;color:var(--c-ink-2);padding:7px 10px;border-radius:10px;transition:all .2s ease}
.side-nav a:hover{background:var(--c-surface-2);color:var(--c-primary)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud span{font-size:13px;color:var(--c-ink-2);background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:var(--r-btn);padding:5px 12px;line-height:1.5;transition:all .2s ease}
.tag-cloud span:hover{color:var(--c-primary);border-color:rgba(44,85,216,.3);background:#EDF1FE}
.tip-list{list-style:none;display:grid;gap:12px}
.tip-list li{display:flex;gap:10px;font-size:13.5px;line-height:1.7;color:var(--c-ink-2)}
.tip-list i{color:var(--c-jade);margin-top:5px;font-size:13px}
.side-card.accent{background:#F3FAF8;border-color:#D3EBE6}
.side-card.accent h3 i{color:var(--c-jade)}

/* footer */
.site-footer{background:var(--c-ink);color:#C9D2E6;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:56px 0 36px}
.f-logo{display:flex;align-items:baseline;gap:6px}
.f-logo b{font-size:20px;color:#fff;letter-spacing:-.02em}
.f-logo span{font-size:13px;font-weight:600;color:#9FB0D4}
.footer-brand p{font-size:14px;line-height:1.85;color:#9DAAC8;margin-top:14px;max-width:330px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col ul{list-style:none;display:grid;gap:10px;font-size:14px}
.footer-col a{color:#B7C3DC}
.footer-col a:hover{color:#4FD8C2}
.footer-contact li{display:flex;gap:9px;font-size:13.5px;color:#9DAAC8;line-height:1.7}
.footer-contact i{color:#4FD8C2;margin-top:5px;font-size:13px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0 26px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8D9AB8}
.footer-bottom a{color:#B7C3DC}
.footer-bottom a:hover{color:#4FD8C2}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:30px}
}
@media (max-width:991px){
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;
    box-shadow:var(--sh-2);padding:10px;margin-left:0;display:none;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 16px;border-radius:12px}
  .nav-menu a.active::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav-menu{margin-left:0}
  .nav-actions{margin-left:auto}
  .article-shell{padding-top:112px;padding-bottom:56px}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .article-shell{padding-top:104px;padding-bottom:44px}
  .article-head{padding:22px 20px 20px}
  .article-body{padding:22px 20px 26px}
  .article-meta{gap:8px 16px}
  .related-grid{grid-template-columns:1fr}
  .pager-grid{grid-template-columns:1fr}
  .pager-card.next{flex-direction:row;text-align:left}
  .sidebar{grid-template-columns:1fr}
  .breadcrumb .cur{max-width:100%;white-space:normal}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .brand-sub{display:none}
  .nav-shell{padding:8px 8px 8px 16px;gap:10px}
  .nav-actions .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .article-head h1{font-size:23px}
  .article-body{padding:18px 16px 22px}
  .article-content{font-size:15.5px}
  .article-content ul,.article-content ol{padding-left:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#2C55D8;
  --c-primary-deep:#1E3EA8;
  --c-jade:#14A08C;
  --c-accent:#FF6B4A;
  --c-ink:#1B2337;
  --c-ink-2:#5A6480;
  --c-line:#E3E8F4;
  --c-bg:#F7F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F4FC;
  --c-success:#17A673;
  --r-card:16px;
  --r-img:12px;
  --r-btn:999px;
  --r-badge:8px;
  --sh-1:0 8px 24px rgba(28,45,90,.08);
  --sh-2:0 14px 36px rgba(28,45,90,.14);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em}
p{margin:0}
button{font-family:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
.section{padding-top:var(--sp-section);padding-bottom:var(--sp-section);background:var(--c-surface)}
.section-alt{background:var(--c-surface-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.02em;color:#0E7C6C;background:#E9F7F4;border:1px solid #CBE9E3;border-radius:var(--r-btn);padding:4px 14px;margin-bottom:14px}
.eyebrow i{font-size:12px}
.sec-title{font-size:clamp(22px,2.4vw,32px);line-height:1.3;font-weight:700}
.sec-note{font-size:14px;color:var(--c-ink-2);line-height:1.75;max-width:360px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(44,85,216,.24)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:scale(1.02)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:#F5F7FE}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.26)}
.btn-accent:hover{background:#E9583A;color:#fff;transform:scale(1.02)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:6px 10px;border-radius:var(--r-badge);background:#E9F7F4;border:1px solid #C6E8E1;color:#0E7C6C}
.badge-primary{background:#EDF1FE;border-color:#D3DDFB;color:var(--c-primary-deep)}
.badge-accent{background:#FFEFEB;border-color:#FFD5C9;color:#D8452A}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}

/* header */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120}
.nav-shell{
  position:relative;
  max-width:1200px;margin:0 auto;padding:8px 12px 8px 20px;
  display:flex;align-items:center;gap:20px;
  background:#FFFFFF;
  background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.97);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:baseline;gap:6px;flex:0 0 auto;line-height:1.2}
.brand-mark{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-primary)}
.brand-sub{font-size:13px;font-weight:600;color:var(--c-ink-2)}
.brand:hover .brand-mark{color:var(--c-primary-deep)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{position:relative;display:inline-block;padding:9px 15px;font-size:14px;font-weight:500;color:var(--c-ink-2);border-radius:var(--r-btn);transition:all .2s ease}
.nav-menu a:hover{color:var(--c-primary);background:#F1F4FC}
.nav-menu a.active{color:var(--c-primary);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:16px;height:3px;border-radius:3px;background:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);font-size:16px;cursor:pointer;align-items:center;justify-content:center}

/* page head */
.page-head{position:relative;padding-top:132px;padding-bottom:60px;background:var(--c-bg);overflow:hidden}
.page-head::before{content:"";position:absolute;top:-160px;right:-140px;width:480px;height:480px;border-radius:50%;background:#E9EEFC;opacity:.85;z-index:0}
.page-head::after{content:"";position:absolute;bottom:-200px;left:-160px;width:380px;height:380px;border-radius:50%;background:#EDF7F5;opacity:.7;z-index:0}
.page-head .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B9C2D8}
.breadcrumb .cur{color:var(--c-ink);font-weight:600}
.page-head-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:center}
.page-head h1{font-size:clamp(28px,3.8vw,46px);line-height:1.16;font-weight:700;margin-top:4px}
.page-lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--c-ink-2);max-width:620px}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.head-stat{background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.stat-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-row b{display:block;font-size:26px;font-weight:800;line-height:1.2;color:var(--c-ink)}
.stat-row span{font-size:13px;color:var(--c-ink-2)}
.stat-line{height:1px;background:var(--c-line);margin:16px 0}

/* filter + list */
.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(44,85,216,.24)}
.search-wrap{position:relative;display:flex;align-items:center;min-width:280px;flex:0 1 320px}
.search-input{width:100%;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;padding:0 48px 0 18px;font-size:14px;color:var(--c-ink);font-family:inherit;outline:none;box-shadow:none;margin:0;transition:border-color .2s ease,box-shadow .2s ease}
.search-input::placeholder{color:#97A0B8}
.search-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(44,85,216,.12);background:#fff}
.search-btn{position:absolute;right:6px;width:34px;height:34px;border-radius:50%;border:0;background:var(--c-primary);color:#fff;font-size:13px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s ease}
.search-btn:hover{background:var(--c-primary-deep)}
.circle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.circle-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.circle-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}
.cc-media{position:relative;aspect-ratio:3/2;overflow:hidden;background:#DDE3F2}
.cc-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.circle-card:hover .cc-media img{transform:scale(1.04)}
.cc-count{position:absolute;right:12px;bottom:12px;display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:7px 10px;border-radius:var(--r-badge);background:rgba(255,255,255,.94);color:var(--c-primary-deep);border:1px solid rgba(255,255,255,.7);box-shadow:0 4px 12px rgba(28,45,90,.14)}
.cc-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.cc-title{font-size:18px;font-weight:700;line-height:1.4;color:var(--c-ink)}
.cc-title:hover{color:var(--c-primary)}
.cc-desc{font-size:14px;line-height:1.7;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.tag{font-size:12px;color:#0E7C6C;background:#E9F7F4;border:1px solid #C6E8E1;border-radius:6px;padding:3px 9px;line-height:1.5}
.more-wrap{display:flex;justify-content:center;margin-top:42px}
.more-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-primary);padding:12px 26px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;transition:all .25s ease}
.more-link:hover{border-color:var(--c-primary);color:var(--c-primary-deep)}
.more-link i{transition:transform .25s ease}
.more-link:hover i{transform:translateX(4px)}

/* entry */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.entry-card{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25);color:inherit}
.entry-ico{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:#EDF1FE;color:var(--c-primary);font-size:19px;margin-bottom:16px}
.entry-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.entry-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75}
.entry-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;font-weight:600;color:var(--c-jade)}

/* guide */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step b{display:block;font-size:32px;font-weight:800;line-height:1;color:#D9E2FA}
.step h3{font-size:18px;font-weight:700;margin:12px 0 8px}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.75}
.step:not(:last-child)::after{content:"";position:absolute;top:56px;right:-16px;width:8px;height:2px;background:repeating-linear-gradient(90deg,#C8D3EE 0 4px,transparent 4px 8px)}
.guide-cta{display:flex;justify-content:center;margin-top:34px}

/* rules */
.rule-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.rule-text p{margin-top:14px;color:var(--c-ink-2);line-height:1.85;font-size:15px}
.rule-list{display:grid;gap:14px}
.rule-list li{display:flex;gap:14px;align-items:flex-start;background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;padding:16px 18px;transition:border-color .2s ease,box-shadow .2s ease}
.rule-list li:hover{border-color:rgba(44,85,216,.22);box-shadow:var(--sh-1)}
.rule-list i{color:var(--c-jade);font-size:16px;margin-top:5px;flex:0 0 auto}
.rule-list b{display:block;font-size:15px;font-weight:700;margin-bottom:2px}
.rule-list span{font-size:13px;color:var(--c-ink-2);line-height:1.65}

/* faq */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;padding:0 20px;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:rgba(44,85,216,.25);box-shadow:var(--sh-1)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 0;font-size:16px;font-weight:600;color:var(--c-ink);display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--c-primary);font-size:14px;transition:transform .25s ease;flex:0 0 auto}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item p{padding:0 0 18px;font-size:14px;line-height:1.85;color:var(--c-ink-2);margin:0}

/* cta */
.cta-card{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;background:#EEF2FE;border:1px solid #D6DFFB;border-radius:20px;padding:44px 48px}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);line-height:1.32;font-weight:700}
.cta-card p{margin-top:10px;font-size:15px;color:var(--c-ink-2);line-height:1.8;max-width:560px}
.cta-card .btn{flex:0 0 auto}

/* footer */
.site-footer{background:var(--c-ink);color:#C6CDDF;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.f-logo{display:flex;align-items:baseline;gap:6px;margin-bottom:14px}
.f-logo b{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.02em}
.f-logo span{font-size:13px;font-weight:600;color:#9FAAC6}
.footer-brand p{font-size:14px;line-height:1.85;color:#A7B0C8;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#A7B0C8}
.footer-col a:hover{color:var(--c-jade)}
.footer-contact li{display:flex;gap:10px;font-size:13px;line-height:1.7;color:#A7B0C8}
.footer-contact i{color:var(--c-jade);margin-top:5px;flex:0 0 auto}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8E99B5}
.footer-bottom a{color:#A7B0C8}
.footer-bottom a:hover{color:var(--c-jade)}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

@media screen and (max-width:1023px){
  .page-head{padding-top:118px}
  .page-head-grid{grid-template-columns:1fr;gap:28px}
  .head-stat{max-width:420px}
  .circle-grid{grid-template-columns:repeat(2,1fr)}
  .entry-grid{grid-template-columns:1fr 1fr}
  .rule-grid{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr}
  .step:not(:last-child)::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:991px){
  .nav-toggle{display:flex}
  .nav-menu{position:absolute;top:calc(100% + 12px);left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:2px;background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--sh-2);padding:10px;margin-left:0}
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:12px 16px;border-radius:12px;font-size:15px}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{background:#F1F4FC}
  .nav-actions .btn-sm{height:38px;padding:0 16px;font-size:13px}
}
@media screen and (max-width:900px){
  :root{--sp-section:64px}
}
@media screen and (max-width:767px){
  .page-head{padding-bottom:44px}
  .circle-grid{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr}
  .filter-bar{align-items:stretch}
  .search-wrap{min-width:0;flex:1 1 100%}
  .cta-card{padding:30px 24px}
  .cta-card .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
}
@media screen and (max-width:600px){
  :root{--sp-section:52px}
  .brand-mark{font-size:17px}
  .brand-sub{font-size:12px}
  .nav-shell{padding:8px 10px 8px 16px;gap:10px}
  .section{padding-left:0;padding-right:0}
  .head-stat{padding:20px}
  .stat-row b{font-size:22px}
}

/* roulang page: category3 */
:root{
  --c-primary:#2C55D8;
  --c-primary-deep:#1E3EA8;
  --c-jade:#14A08C;
  --c-accent:#FF6B4A;
  --c-ink:#1B2337;
  --c-ink-2:#5A6480;
  --c-line:#E3E8F4;
  --c-bg:#F7F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F4FC;
  --c-success:#17A673;
  --r-card:16px;
  --r-img:12px;
  --r-btn:999px;
  --r-badge:8px;
  --sh-1:0 8px 24px rgba(28,45,90,.08);
  --sh-2:0 14px 36px rgba(28,45,90,.14);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
button{font-family:inherit}
input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding-top:var(--sp-section);padding-bottom:var(--sp-section)}
.section-alt{background:var(--c-surface-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--c-jade);background:#E9F7F4;border:1px solid #CBE9E3;border-radius:var(--r-btn);padding:4px 14px;margin-bottom:16px}
.sec-title{font-size:clamp(24px,2.6vw,36px);line-height:1.28;font-weight:700;letter-spacing:-.01em;color:var(--c-ink)}
.sec-desc{margin-top:12px;max-width:640px;color:var(--c-ink-2);font-size:15.5px;line-height:1.85}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(44,85,216,.24)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:scale(1.02)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:#F5F7FE}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.26)}
.btn-accent:hover{background:#E9583A;color:#fff;transform:scale(1.02)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:6px 10px;border-radius:var(--r-badge);background:#E9F7F4;border:1px solid #C6E8E1;color:#0E7C6C}
.badge-primary{background:#EDF1FE;border-color:#D3DDFB;color:var(--c-primary-deep)}
.badge-accent{background:#FFEFEB;border-color:#FFD5C9;color:#D8452A}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}

/* header */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120}
.nav-shell{
  position:relative;
  max-width:1200px;margin:0 auto;padding:8px 12px 8px 20px;
  display:flex;align-items:center;gap:20px;
  background:#FFFFFF;background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.97);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:baseline;gap:6px;flex:0 0 auto;line-height:1.2}
.brand-mark{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-primary)}
.brand-sub{font-size:13px;font-weight:600;color:var(--c-ink-2)}
.brand:hover .brand-mark{color:var(--c-primary-deep)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{position:relative;display:inline-block;padding:9px 15px;font-size:14px;font-weight:500;color:var(--c-ink-2);border-radius:var(--r-btn);transition:all .2s ease}
.nav-menu a:hover{color:var(--c-primary);background:#F1F4FC}
.nav-menu a.active{color:var(--c-primary);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:16px;height:3px;border-radius:3px;background:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);font-size:16px;cursor:pointer}

/* category hero */
.cat-hero{position:relative;padding-top:140px;padding-bottom:64px;background:var(--c-bg);overflow:hidden}
.cat-hero::before{content:"";position:absolute;top:-160px;right:-140px;width:460px;height:460px;border-radius:50%;background:#E9EEFC;opacity:.8;z-index:0}
.cat-hero::after{content:"";position:absolute;bottom:-200px;left:-120px;width:380px;height:380px;border-radius:50%;background:#EDF7F5;opacity:.85;z-index:0}
.cat-hero .container{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);flex-wrap:wrap}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#B7C0D8}
.cat-hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:start;margin-top:18px}
.cat-hero h1{font-size:clamp(30px,4vw,48px);line-height:1.18;font-weight:700;letter-spacing:-.02em;margin-top:14px}
.cat-hero-sub{margin-top:14px;font-size:16px;color:var(--c-ink-2);line-height:1.85;max-width:620px}
.cat-hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hot-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px 22px 12px}
.hot-panel h2{font-size:15px;font-weight:700;color:var(--c-ink);display:flex;align-items:center;gap:8px;margin-bottom:6px}
.hot-panel h2 i{color:var(--c-accent)}
.hot-list{list-style:none;margin:0;padding:0}
.hot-list li{border-top:1px dashed var(--c-line)}
.hot-list li:first-child{border-top:0}
.hot-list a{display:flex;gap:12px;align-items:flex-start;padding:14px 0;color:var(--c-ink);font-size:14.5px;line-height:1.6}
.hot-list a:hover{color:var(--c-primary)}
.hot-num{flex:0 0 22px;height:22px;border-radius:6px;background:#EDF1FE;color:var(--c-primary-deep);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.hot-list li:nth-child(1) .hot-num{background:var(--c-primary);color:#fff}
.hot-list li:nth-child(2) .hot-num{background:#4A6BE0;color:#fff}
.hot-meta{display:block;font-size:12.5px;color:var(--c-ink-2);margin-top:4px}

/* featured */
.feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px}
.feature-main{padding:0;overflow:hidden;display:flex;flex-direction:column}
.feature-main .fig{position:relative;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0}
.feature-main .fig img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s ease}
.feature-main:hover .fig img{transform:scale(1.03)}
.feature-main .body{padding:24px 26px 28px}
.feature-main h3{font-size:22px;line-height:1.4;font-weight:700;color:var(--c-ink)}
.feature-main p{margin-top:10px;color:var(--c-ink-2);font-size:15px;line-height:1.8}
.feature-main .meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--c-ink-2)}
.feature-side{display:flex;flex-direction:column;gap:22px}
.feature-mini{display:flex;gap:16px;padding:16px;align-items:flex-start}
.feature-mini .thumb{flex:0 0 132px}
.feature-mini .thumb img{width:132px;height:84px;object-fit:cover;border-radius:var(--r-img)}
.feature-mini h3{font-size:16.5px;line-height:1.45;font-weight:600;color:var(--c-ink)}
.feature-mini p{margin-top:6px;font-size:13.5px;line-height:1.7;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-mini .meta{margin-top:10px;display:flex;gap:8px;align-items:center;font-size:12.5px;color:var(--c-ink-2)}

/* channel entries */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.channel-card{display:block;padding:24px 22px;color:inherit;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25);color:inherit}
.channel-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:#E9F7F4;color:var(--c-jade);font-size:18px;margin-bottom:14px}
.channel-card h3{font-size:17px;font-weight:700;color:var(--c-ink)}
.channel-card p{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--c-ink-2)}
.channel-more{margin-top:14px;font-size:13px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}

/* topic list */
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:26px}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}
.chip:hover{border-color:rgba(44,85,216,.4);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(44,85,216,.22)}
.search-box{display:flex;align-items:center;gap:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);height:44px;padding:0 6px 0 16px;transition:border-color .2s ease,box-shadow .2s ease;min-width:280px}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(44,85,216,.1)}
.search-box i{color:var(--c-ink-2);font-size:14px}
.search-box input{flex:1 1 auto;border:0;outline:none;background:transparent;height:42px;padding:0 10px;font-size:14px;color:var(--c-ink);min-width:0}
.search-box input::placeholder{color:#9AA3BC}
.search-box .go{height:34px;padding:0 16px;border-radius:var(--r-btn);border:0;background:var(--c-primary);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:background .2s ease}
.search-box .go:hover{background:var(--c-primary-deep)}

.topic-rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--c-line)}
.topic-row{border-bottom:1px solid var(--c-line)}
.topic-row-link{display:flex;align-items:center;gap:18px;padding:18px 14px;border-radius:12px;color:inherit;transition:background .2s ease}
.topic-row-link:hover{background:var(--c-surface-2);color:inherit}
.topic-thumb{flex:0 0 120px;height:72px;border-radius:var(--r-img);background:#EDF1FE;color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:22px}
.topic-body{flex:1 1 auto;min-width:0}
.topic-title{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink)}
.topic-desc{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:4px;font-size:13.5px;line-height:1.7;color:var(--c-ink-2)}
.topic-meta{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.topic-date{font-size:12.5px;color:var(--c-ink-2)}
.topic-arrow{flex:0 0 auto;color:var(--c-primary);opacity:0;transform:translateX(-6px);transition:opacity .2s ease,transform .2s ease}
.topic-row-link:hover .topic-arrow{opacity:1;transform:translateX(0)}
.list-foot{display:flex;justify-content:center;margin-top:32px}
.empty-state{text-align:center;padding:52px 20px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card)}
.empty-state .ico{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:#EDF1FE;color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:22px}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:18px}

/* tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;padding:8px 16px;border-radius:var(--r-btn);background:#fff;border:1px solid var(--c-line);font-size:14px;color:var(--c-ink-2);transition:all .2s ease}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:#F5F7FE;transform:translateY(-2px)}

/* review timeline */
.review-list{position:relative;padding-left:32px;list-style:none;margin:0}
.review-list::before{content:"";position:absolute;left:7px;top:10px;bottom:12px;width:2px;background:var(--c-line)}
.review-item{position:relative;padding-bottom:30px}
.review-item:last-child{padding-bottom:0}
.review-item::before{content:"";position:absolute;left:-32px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--c-jade);border:3px solid #fff;box-shadow:0 0 0 2px #CBE9E3}
.review-item h3{font-size:17px;font-weight:600;color:var(--c-ink);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.review-item p{margin-top:8px;font-size:14px;color:var(--c-ink-2);line-height:1.8;max-width:760px}

/* contribute */
.contribute{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--c-surface);border:1px solid var(--c-line);border-radius:24px;box-shadow:var(--sh-1);padding:44px}
.contribute h2{font-size:clamp(22px,2.2vw,30px);line-height:1.32;font-weight:700;color:var(--c-ink)}
.contribute p{margin-top:14px;color:var(--c-ink-2);font-size:15px;line-height:1.85}
.mini-list{list-style:none;margin:0;padding:0}
.mini-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;color:var(--c-ink)}
.mini-list li:last-child{border-bottom:0}
.mini-list i{color:var(--c-jade);margin-top:6px;font-size:13px}

/* cta band */
.cta-band{background:#EDF1FE;border:1px solid #D3DDFB;border-radius:24px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(21px,2.2vw,28px);line-height:1.35;font-weight:700;color:var(--c-ink)}
.cta-band p{margin-top:10px;color:var(--c-ink-2);font-size:14.5px;line-height:1.8;max-width:620px}

/* footer */
.site-footer{background:var(--c-ink);color:#C8D0E4;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.f-logo{display:flex;align-items:baseline;gap:8px;margin-bottom:14px}
.f-logo b{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.02em}
.f-logo span{font-size:13px;color:#8FA0C8;font-weight:600}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#98A5C4;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.5px;color:#A9B4CE;transition:color .2s ease}
.footer-col a:hover{color:var(--c-jade)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:#A9B4CE;line-height:1.7}
.footer-contact i{color:var(--c-jade);margin-top:5px;font-size:13px}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8996B6}
.footer-bottom a{color:#A9B4CE}
.footer-bottom a:hover{color:var(--c-jade)}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width:1199px){
  .channel-grid{grid-template-columns:repeat(4,1fr);gap:16px}
  .feature-grid{grid-template-columns:1.05fr .95fr}
}
@media (max-width:991px){
  :root{--sp-section:64px}
  .nav-menu{position:absolute;top:calc(100% + 10px);left:0;right:0;margin-left:0;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--sh-2);padding:10px;display:none;z-index:130}
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:12px 14px;font-size:15px;line-height:1.6}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{background:#F1F4FC}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-shell{padding:8px 10px 8px 16px;gap:12px}
  .cat-hero{padding-top:120px;padding-bottom:48px}
  .cat-hero-grid{grid-template-columns:1fr;gap:30px}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{flex-direction:row;flex-wrap:wrap}
  .feature-mini{flex:1 1 320px}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .contribute{grid-template-columns:1fr;padding:32px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .cat-hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-metrics{gap:20px}
  .toolbar{flex-direction:column;align-items:stretch}
  .search-box{width:100%;min-width:0}
  .topic-row-link{flex-wrap:wrap;gap:14px;padding:16px 10px}
  .topic-thumb{flex:0 0 84px;height:56px;font-size:18px}
  .topic-meta{flex-direction:row;align-items:center;justify-content:space-between;width:100%;gap:10px}
  .topic-arrow{display:none}
  .feature-side{flex-direction:column}
  .feature-mini{flex:1 1 auto}
  .cta-band{padding:30px 24px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-brand p{max-width:none}
}
@media (max-width:519px){
  .channel-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .cat-hero-cta .btn{width:100%}
  .hot-panel{padding:18px 16px 8px}
  .contribute{padding:24px}
}

/* roulang page: category2 */
:root{
  --c-primary:#2C55D8;
  --c-primary-deep:#1E3EA8;
  --c-jade:#14A08C;
  --c-accent:#FF6B4A;
  --c-ink:#1B2337;
  --c-ink-2:#5A6480;
  --c-line:#E3E8F4;
  --c-bg:#F7F8FB;
  --c-surface:#FFFFFF;
  --c-surface-2:#F1F4FC;
  --c-success:#17A673;
  --r-card:16px;
  --r-img:12px;
  --r-btn:999px;
  --r-badge:8px;
  --sh-1:0 8px 24px rgba(28,45,90,.08);
  --sh-2:0 14px 36px rgba(28,45,90,.14);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding-top:var(--sp-section);padding-bottom:var(--sp-section);background:var(--c-surface);border-top:1px solid var(--c-line)}
.section-alt{padding-top:var(--sp-section);padding-bottom:var(--sp-section);background:var(--c-surface-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{margin-bottom:36px;max-width:760px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--c-jade);background:#E9F7F4;border:1px solid #CBE9E3;border-radius:var(--r-btn);padding:4px 14px;margin-bottom:14px}
.sec-title{font-size:clamp(24px,2.6vw,36px);line-height:1.28;font-weight:700}
.sec-desc{margin-top:12px;color:var(--c-ink-2);font-size:16px;line-height:1.8}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(44,85,216,.24)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:scale(1.02)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);background:#F5F7FE}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.26)}
.btn-accent:hover{background:#E9583A;color:#fff;transform:scale(1.02)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:6px 10px;border-radius:var(--r-badge);background:#E9F7F4;border:1px solid #C6E8E1;color:#0E7C6C;white-space:nowrap}
.badge-primary{background:#EDF1FE;border-color:#D3DDFB;color:var(--c-primary-deep)}
.badge-accent{background:#FFEFEB;border-color:#FFD5C9;color:#D8452A}
.badge-muted{background:#F1F3F9;border-color:#E1E6F2;color:#6A748C}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25)}
/* ===== 悬浮胶囊导航 ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120;padding:0 16px}
.nav-shell{
  width:100%;max-width:1200px;margin:0 auto;padding:8px 12px 8px 20px;
  display:flex;align-items:center;gap:20px;position:relative;
  background:#FFFFFF;background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.97);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:baseline;gap:6px;flex:0 0 auto;line-height:1.2}
.brand-mark{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-primary)}
.brand-sub{font-size:13px;font-weight:600;color:var(--c-ink-2)}
.brand:hover .brand-mark{color:var(--c-primary-deep)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{position:relative;display:inline-block;padding:9px 15px;font-size:14px;font-weight:500;color:var(--c-ink-2);border-radius:var(--r-btn);transition:all .2s ease}
.nav-menu a:hover{color:var(--c-primary);background:#F1F4FC}
.nav-menu a.active{color:var(--c-primary);font-weight:600}
.nav-menu a.active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:16px;height:3px;border-radius:3px;background:var(--c-primary)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);font-size:16px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
/* ===== 分类页头部 ===== */
.page-hero{padding-top:132px;padding-bottom:56px;background:var(--c-bg);position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-160px;right:-180px;width:480px;height:480px;border-radius:50%;background:#E9EEFC;opacity:.8;z-index:0}
.page-hero::after{content:"";position:absolute;bottom:-200px;left:-160px;width:380px;height:380px;border-radius:50%;background:#EAF6F3;opacity:.85;z-index:0}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);margin-bottom:18px}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B6C0D6}
.breadcrumb .current{color:var(--c-ink);font-weight:600}
.hero-split{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.22;font-weight:700;margin:6px 0 0}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{margin-top:16px;color:var(--c-ink-2);font-size:16px;line-height:1.85;max-width:620px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:22px}
.hero-facts .f-num{font-size:22px;font-weight:800;color:var(--c-ink);line-height:1.2}
.hero-facts .f-num span{font-size:13px;color:var(--c-primary);margin-left:2px;font-weight:700}
.hero-facts .f-label{font-size:13px;color:var(--c-ink-2);margin-top:2px}
.filter-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 18px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease}
.pill:hover{border-color:rgba(44,85,216,.4);color:var(--c-primary)}
.pill.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 8px 18px rgba(44,85,216,.22)}
.mini-strip{display:flex;gap:14px;overflow-x:auto;padding:6px 4px 14px;scrollbar-width:thin}
.mini-card{flex:0 0 168px;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:8px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;color:var(--c-ink)}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);color:var(--c-primary)}
.mini-thumb{border-radius:10px;overflow:hidden;aspect-ratio:3/2;background:#E7ECF8}
.mini-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.mini-card span{display:block;font-size:13px;font-weight:600;margin-top:8px;padding:0 2px 2px}
/* ===== 时间轴 ===== */
.timeline{display:flex;flex-direction:column;gap:30px}
.tl-group{display:grid;grid-template-columns:104px 1fr;gap:26px;align-items:start}
.tl-date{background:#fff;border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--sh-1);padding:14px 10px;text-align:center}
.tl-date .d{display:block;font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.1}
.tl-date .m{display:block;font-size:12px;color:var(--c-ink-2);margin-top:4px;letter-spacing:.06em}
.tl-date .w{display:inline-block;margin-top:8px;font-size:12px;font-weight:600;color:#0E7C6C;background:#E9F7F4;border:1px solid #C6E8E1;border-radius:6px;padding:2px 8px}
.tl-rows{display:flex;flex-direction:column;gap:12px;padding-left:26px;border-left:2px dashed #DCE3F2}
.event-row{display:grid;grid-template-columns:124px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:12px 16px 12px 12px;box-shadow:0 4px 14px rgba(28,45,90,.05);transition:all .25s ease;color:var(--c-ink)}
.event-row:hover{background:var(--c-surface-2);border-color:rgba(44,85,216,.25);box-shadow:var(--sh-1);color:var(--c-ink)}
.event-row:hover .ev-arrow{opacity:1;transform:translateX(0)}
.ev-thumb{width:124px;height:72px;border-radius:10px;overflow:hidden;background:#E7ECF8}
.ev-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.ev-main h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:6px}
.ev-meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;color:var(--c-ink-2)}
.ev-meta i{color:var(--c-jade);margin-right:5px}
.ev-side{display:flex;align-items:center;gap:12px}
.ev-arrow{opacity:0;transform:translateX(-6px);transition:all .25s ease;color:var(--c-primary);font-size:14px}
.more-line{text-align:center;margin-top:34px}
/* ===== 活动类型入口 ===== */
.type-link{display:block;height:100%;padding:22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);color:var(--c-ink);transition:all .25s ease;position:relative;overflow:hidden}
.type-link::before{content:"";position:absolute;left:0;top:0;right:0;height:3px;background:var(--c-jade);opacity:.7}
.type-link:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,85,216,.25);color:var(--c-ink)}
.type-icon{width:44px;height:44px;border-radius:12px;background:#EDF1FE;color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px}
.type-link h3{font-size:18px;font-weight:600;margin-bottom:8px}
.type-link p{font-size:14px;color:var(--c-ink-2);line-height:1.75}
.type-link .t-go{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary);margin-top:14px}
.type-link[aria-current="page"]{border-color:rgba(44,85,216,.35);box-shadow:var(--sh-2)}
/* ===== 合作方条 ===== */
.partner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.partner-item{height:64px;display:flex;align-items:center;justify-content:center;text-align:center;background:#fff;border:1px solid var(--c-line);border-radius:12px;font-size:14px;font-weight:600;color:#8A93A8;filter:grayscale(1);transition:all .25s ease;padding:0 8px}
.partner-item:hover{filter:grayscale(0);color:var(--c-primary);border-color:rgba(44,85,216,.25);box-shadow:var(--sh-1)}
/* ===== 参与须知 ===== */
.notice-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px}
.notice-item{display:flex;gap:14px;padding:16px 18px;background:#fff;border:1px solid var(--c-line);border-radius:14px}
.notice-num{flex:0 0 auto;width:30px;height:30px;border-radius:9px;background:#EDF1FE;color:var(--c-primary-deep);font-size:14px;font-weight:800;display:flex;align-items:center;justify-content:center}
.notice-item p{font-size:15px;color:var(--c-ink-2);line-height:1.75}
.notice-item p b{color:var(--c-ink);font-weight:600}
/* ===== 资讯列表（行式） ===== */
.news-list{display:flex;flex-direction:column;gap:10px}
.news-row{display:grid;grid-template-columns:120px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:12px 16px 12px 12px;transition:all .25s ease;color:var(--c-ink)}
.news-row:hover{background:var(--c-surface-2);border-color:rgba(44,85,216,.25);color:var(--c-ink);transform:translateX(2px)}
.news-thumb{width:120px;height:72px;border-radius:10px;overflow:hidden;background:#E7ECF8;display:flex;align-items:center;justify-content:center;color:#B9C3D8;font-size:20px}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.news-title{display:block;font-size:16px;font-weight:600;line-height:1.5;color:var(--c-ink);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
.news-row:hover .news-title{color:var(--c-primary)}
.news-desc{display:block;font-size:14px;color:var(--c-ink-2);line-height:1.7;margin-top:4px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-side{display:flex;flex-direction:column;align-items:flex-end;gap:8px;font-size:13px;color:var(--c-ink-2);white-space:nowrap}
.empty-state{text-align:center;padding:48px 20px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card)}
.empty-state i{font-size:30px;color:#B9C3D8}
.empty-state p{margin:12px 0 18px;color:var(--c-ink-2);font-size:15px}
/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--sh-1);overflow:hidden;transition:border-color .25s ease}
.faq-item[open]{border-color:rgba(44,85,216,.3)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary .faq-ic{color:var(--c-primary);font-size:14px;transition:transform .25s ease}
.faq-item[open] summary .faq-ic{transform:rotate(180deg)}
.faq-body{padding:0 22px 20px;color:var(--c-ink-2);font-size:15px;line-height:1.85}
/* ===== 结尾 CTA ===== */
.cta-band{background:#EDF1FE;border:1px solid #D8E0FB;border-radius:24px;padding:44px 46px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.32;font-weight:700}
.cta-band p{margin-top:10px;color:var(--c-ink-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
/* ===== 页脚 ===== */
.site-footer{background:var(--c-ink);color:#C9D2E6;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.f-logo{display:flex;align-items:baseline;gap:6px;margin-bottom:14px}
.f-logo b{color:#fff;font-size:19px;font-weight:800}
.f-logo span{color:var(--c-jade);font-size:13px;font-weight:600}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9B5CE;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:#A9B5CE;line-height:1.7}
.footer-col a{color:#A9B5CE}
.footer-col a:hover{color:var(--c-jade)}
.footer-contact i{color:var(--c-jade);margin-right:8px;width:16px;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:42px;padding:20px 0 26px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8B98B4}
.footer-bottom a{color:#8B98B4}
.footer-bottom a:hover{color:var(--c-jade)}
/* ===== 响应式 ===== */
@media (max-width:1199px){
  .partner-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991px){
  :root{--sp-section:64px}
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;margin:0;padding:10px;
    flex-direction:column;align-items:stretch;gap:2px;display:none;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;box-shadow:var(--sh-2);
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:13px 16px;font-size:15px;border-radius:12px}
  .nav-menu a.active{background:#F1F4FC}
  .nav-menu a.active::after{display:none}
  .nav-toggle{display:inline-flex}
  .hero-split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .notice-list{grid-template-columns:1fr}
  .tl-group{grid-template-columns:88px 1fr;gap:18px}
  .tl-rows{padding-left:18px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .site-header{top:10px;padding:0 10px}
  .nav-shell{padding:6px 8px 6px 14px;gap:10px}
  .brand-mark{font-size:17px}
  .brand-sub{font-size:12px}
  .nav-actions .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .page-hero{padding-top:112px;padding-bottom:40px}
  .event-row{grid-template-columns:1fr;gap:10px;padding:12px}
  .ev-thumb{width:100%;height:150px}
  .ev-side{justify-content:space-between}
  .ev-arrow{opacity:1;transform:none}
  .news-row{grid-template-columns:1fr;gap:10px}
  .news-thumb{width:100%;height:150px}
  .news-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%}
  .tl-group{grid-template-columns:1fr}
  .tl-date{display:flex;align-items:center;gap:12px;text-align:left;padding:10px 14px}
  .tl-date .d{font-size:20px}
  .tl-date .m{margin-top:0}
  .tl-date .w{margin-top:0;margin-left:auto}
  .tl-rows{border-left:none;padding-left:0}
  .cta-band{padding:30px 22px;border-radius:20px}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero-facts{gap:18px}
  .mini-card{flex:0 0 148px}
  .cta-actions .btn{width:100%}
}