/* roulang page: index */
:root{
  --c-primary:#21B0A8;
  --c-primary-deep:#0E928A;
  --c-secondary:#31456A;
  --c-ink:#1F2937;
  --c-body:#3F4A5A;
  --c-muted:#6C7A8C;
  --c-bg:#F6F7F9;
  --c-card:#FFFFFF;
  --c-line:#E5E9EF;
  --c-line-light:#F0F2F5;
  --c-accent:#FF7A45;
  --grad-main:linear-gradient(135deg,#21B0A8 0%,#31456A 100%);
  --grad-soft:linear-gradient(135deg,rgba(33,176,168,.12) 0%,rgba(49,69,106,.12) 100%);
  --r-lg:20px;
  --r-mid:16px;
  --r-sm:10px;
  --shadow-sm:0 2px 8px rgba(49,69,106,.06);
  --shadow-md:0 8px 24px rgba(49,69,106,.12);
  --shadow-lg:0 16px 40px rgba(31,41,55,.14);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --space-sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  background:#FFFFFF;
  color:var(--c-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-secondary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
p{margin:0 0 1rem}
button{font-family:var(--font-sans)}
input{font-family:var(--font-sans)}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.grid-x{align-items:stretch}
.section{padding:var(--space-sec) 0}
.section-tight{padding:56px 0}
.bg-light{background:var(--c-bg)}
.section-head{margin-bottom:44px}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);background:rgba(33,176,168,.1);border:1px solid rgba(33,176,168,.18);padding:5px 14px;border-radius:999px;margin-bottom:14px}
.section-head h2{font-size:clamp(28px,3vw,38px);line-height:1.25;color:var(--c-ink);font-weight:700;margin:0 0 10px}
.section-head p{color:var(--c-muted);font-size:16px;max-width:640px;margin:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:none;border-radius:var(--r-sm);
  font-weight:600;font-size:15px;cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{border:1px solid rgba(255,255,255,.8);background:transparent;color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}
.btn-dark-outline{border:1px solid var(--c-line);background:var(--c-card);color:var(--c-secondary)}
.btn-dark-outline:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-light{background:#fff;color:var(--c-secondary)}
.btn-light:hover{color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--c-secondary);background:var(--c-bg);border:1px solid var(--c-line);padding:3px 10px;border-radius:999px;line-height:1.6}
.pulse-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--c-accent);position:relative;margin-right:6px}
.pulse-dot::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid rgba(255,122,69,.5);animation:pulse 1.8s ease-out infinite}
@keyframes pulse{0%{transform:scale(.7);opacity:1}100%{transform:scale(1.6);opacity:0}}
section[id]{scroll-margin-top:90px}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line);box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:76px}
.brand-logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:12px;background:var(--grad-main);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:16px;box-shadow:0 4px 12px rgba(49,69,106,.22)}
.brand-text{font-size:21px;font-weight:800;color:var(--c-ink);letter-spacing:-.3px;line-height:1.1}
.brand-text em{font-style:normal;color:var(--c-primary)}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--c-muted);letter-spacing:.5px}
.main-nav{margin-left:16px}
.main-nav .nav-list{display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none}
.nav-item{position:relative}
.nav-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--c-body);padding:10px 14px;border-radius:10px;transition:all .2s ease}
.nav-link i{font-size:11px;color:var(--c-muted);transition:transform .2s ease}
.nav-link:hover{color:var(--c-primary);background:rgba(33,176,168,.08)}
.nav-link.active{color:var(--c-secondary);background:var(--c-bg);font-weight:600}
.nav-item.has-mega:hover .nav-link i{transform:rotate(180deg)}
.mega-panel{position:absolute;top:calc(100% + 14px);right:-90px;width:620px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:24px;display:grid;grid-template-columns:1.15fr .85fr;gap:24px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .25s ease;z-index:90}
.nav-item.has-mega:hover .mega-panel,.nav-item.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-links{display:flex;flex-direction:column;gap:6px}
.mega-links-title{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:4px}
.mega-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:10px;font-size:14px;font-weight:500;color:var(--c-body);transition:all .2s ease}
.mega-links a i{font-size:12px;color:var(--c-muted)}
.mega-links a:hover{background:var(--c-bg);color:var(--c-primary);padding-left:16px}
.mega-cover{border-radius:var(--r-mid);overflow:hidden;position:relative;min-height:170px;background:url('/assets/images/coverpic/cover-2.webp') center/cover}
.mega-cover .cover-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(49,69,106,.1),rgba(49,69,106,.86));padding:18px;display:flex;flex-direction:column;justify-content:flex-end}
.mega-cover span{color:#fff;font-size:13px;font-weight:600;margin-bottom:4px}
.mega-cover strong{color:#fff;font-size:17px;line-height:1.4}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-cta{color:#fff}
.header-cta .btn-primary{height:40px;padding:0 18px;border-radius:10px}
.nav-burger{display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;background:#fff;align-items:center;justify-content:center;font-size:18px;color:var(--c-secondary);cursor:pointer;transition:all .2s ease}
.nav-burger:hover{border-color:var(--c-primary);color:var(--c-primary)}
.nav-overlay{display:none}

/* ===== Hero ===== */
.hero-main{
  position:relative;
  color:#fff;
  background:linear-gradient(115deg,rgba(49,69,106,.96) 0%,rgba(49,69,106,.84) 38%,rgba(33,176,168,.68) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
  padding:84px 0 92px;
}
.hero-main::after{content:"";position:absolute;right:-120px;top:-140px;width:440px;height:440px;border-radius:50%;background:rgba(33,176,168,.14);filter:blur(80px);pointer-events:none}
.hero-grid{position:relative;z-index:2}
.hero-copy{max-width:680px}
.hero-title{font-size:clamp(34px,4.8vw,50px);line-height:1.22;font-weight:800;color:#fff;margin:0 0 14px;letter-spacing:-.6px}
.hero-title span{display:block;font-size:clamp(19px,2.2vw,24px);font-weight:600;color:rgba(255,255,255,.88);margin-top:10px;letter-spacing:0}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.92);margin-bottom:30px;max-width:580px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:34px}
.hero-note{font-size:14px;color:rgba(255,255,255,.7)}
.hero-live-card{
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-lg);color:var(--c-body);
  padding:26px;margin-left:auto;max-width:400px;
}
.live-card-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:17px}
.live-date-badge{display:inline-flex;align-items:center;background:rgba(255,122,69,.12);color:var(--c-accent);border-radius:999px;padding:5px 11px;font-size:13px;font-weight:600}
.live-card-title{font-size:18px;font-weight:700;color:var(--c-ink);line-height:1.5;margin-bottom:16px}
.live-list{list-style:none;margin:0 0 20px;padding:0}
.live-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-body);padding:4px 0}
.live-list li i{width:22px;height:22px;border-radius:7px;background:var(--grad-soft);color:var(--c-primary);font-size:11px;display:inline-flex;align-items:center;justify-content:center}
.live-card-btn{display:block;text-align:center;background:var(--grad-main);color:#fff;height:48px;border-radius:10px;line-height:48px;font-weight:600;font-size:15px;transition:all .2s ease}
.live-card-btn:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.hero-live-card .hero-card-sub{font-size:13px;color:var(--c-muted);margin:14px 0 0}

/* ===== Alert bar ===== */
.alert-bar{background:var(--c-bg);border-bottom:1px solid var(--c-line);padding:10px 0;font-size:13px;color:var(--c-body)}
.alert-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.alert-inner a{font-weight:600;color:var(--c-secondary);display:inline-flex;align-items:center;gap:6px}
.alert-inner a:hover{color:var(--c-primary)}
.alert-inner .fa-volume-high{color:var(--c-primary)}

/* ===== Countdown ===== */
.countdown-wrap{background:var(--c-bg);padding-bottom:8px}
.countdown-section{position:relative;background:var(--c-bg);padding:60px 0 70px;border-bottom:1px solid var(--c-line)}
.countdown-inner{text-align:center}
.countdown-badges{margin-bottom:8px}
.count-chip{display:inline-flex;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:7px 14px;font-size:13px;font-weight:600;color:var(--c-secondary);box-shadow:var(--shadow-sm)}
.countdown-inner h2{font-size:clamp(26px,3vw,36px);color:var(--c-ink);font-weight:700;margin:12px 0 8px}
.countdown-inner .count-sub{color:var(--c-muted);font-size:15px;margin:0 0 30px}
.countdown-grid{display:flex;justify-content:center;gap:18px;flex-wrap:wrap}
.time-card{
  background:#fff;border-radius:var(--r-mid);min-width:96px;padding:20px 10px 18px;
  box-shadow:var(--shadow-sm);border:1px solid var(--c-line);text-align:center;
}
.time-card .num{font-size:clamp(36px,4vw,48px);font-weight:800;color:var(--c-secondary);line-height:1.1;font-variant-numeric:tabular-nums;display:block;letter-spacing:-1px}
.time-card .unit{font-size:14px;color:var(--c-muted);font-weight:500;display:block;margin-top:8px}
.time-tip{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:22px;font-size:14px;color:var(--c-muted)}
.time-tip .pulse-dot{margin:0}
.time-tip b{color:var(--c-secondary)}

/* ===== Highlights ===== */
.hl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.hl-item{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-mid);padding:26px 26px 22px;box-shadow:var(--shadow-sm);transition:all .25s ease;overflow:hidden}
.hl-item::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--grad-main);opacity:0;transition:opacity .25s ease}
.hl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.hl-item:hover::before{opacity:1}
.hl-item:first-child{grid-column:1/-1;display:grid;grid-template-columns:1fr 1.4fr;gap:22px;align-items:center;background:var(--grad-soft);border-color:transparent}
.hl-item:first-child .hl-num{font-size:54px;color:var(--c-secondary);opacity:.14}
.hl-item:first-child .hl-copy{width:100%}
.hl-num{font-size:30px;font-weight:800;color:rgba(49,69,106,.12);line-height:1;margin-bottom:10px;letter-spacing:-1px;font-variant-numeric:tabular-nums}
.hl-item h3{font-size:18px;font-weight:700;color:var(--c-ink);margin-bottom:8px;line-height:1.45}
.hl-item p{font-size:14px;color:var(--c-muted);margin:0;line-height:1.7}
.hl-item:first-child h3{font-size:21px}
.hl-item:first-child p{font-size:15px}

/* ===== Subscribe band ===== */
.subscribe-band{background:var(--c-secondary);background-image:radial-gradient(circle at 85% 18%,rgba(33,176,168,.24) 0,transparent 34%),radial-gradient(circle at 10% 85%,rgba(33,176,168,.14) 0,transparent 36%);color:#fff;padding:72px 0}
.subscribe-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.subscribe-band h2{color:#fff;font-size:clamp(28px,3vw,36px);margin:0 0 14px;line-height:1.3}
.subscribe-band p{color:rgba(255,255,255,.84);font-size:15px;margin:0;max-width:560px}
.subscribe-form{display:flex;gap:12px;background:#fff;border-radius:14px;padding:6px;box-shadow:var(--shadow-lg)}
.subscribe-form input{flex:1;min-width:0;border:none;height:44px;padding:0 14px;font-size:15px;color:var(--c-ink);background:transparent}
.subscribe-form input:focus{outline:none;border:none;box-shadow:none}
.subscribe-form button{background:var(--grad-main);color:#fff;flex-shrink:0;height:44px;padding:0 20px;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease}
.subscribe-form button:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}
.subscribe-note{font-size:13px;color:rgba(255,255,255,.65);margin-top:12px}

/* ===== News / CMS ===== */
.news-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .25s ease;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-bg)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1}
.news-tag{align-self:flex-start;margin-bottom:12px}
.news-body h3{font-size:17px;line-height:1.5;color:var(--c-ink);font-weight:700;margin:0 0 10px}
.news-body h3 a{color:var(--c-ink)}
.news-body h3 a:hover{color:var(--c-primary)}
.news-excerpt{font-size:14px;color:var(--c-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 16px}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);border-top:1px solid var(--c-line-light);padding-top:12px}
.news-meta time{display:inline-flex;align-items:center;gap:5px}
.news-meta span{color:var(--c-primary);font-weight:500;font-size:13px}
.empty-card{background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-mid);padding:44px 20px;text-align:center;color:var(--c-muted);font-size:15px}
.news-grid .news-card:first-child{grid-column:span 1}

/* ===== Portal / Topics ===== */
.portal-grid{display:grid;grid-template-columns:1.45fr 1fr;grid-auto-rows:minmax(180px,auto);gap:24px}
.portal-big{border-radius:var(--r-lg);overflow:hidden;position:relative;grid-row:span 2;min-height:400px;background:url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat}
.portal-big .portal-mask{position:absolute;inset:0;background:linear-gradient(120deg,rgba(31,41,55,.38) 0%,rgba(49,69,106,.32) 55%,rgba(49,69,106,.9) 100%);display:flex;align-items:flex-end}
.portal-big .portal-content{padding:36px;color:#fff;max-width:440px}
.portal-small{border-radius:var(--r-lg);position:relative;overflow:hidden;min-height:185px;background-color:var(--c-bg);background-size:cover;background-position:center}
.portal-small .portal-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,41,55,.14) 0%,rgba(31,41,55,.72) 100%);display:flex;align-items:flex-end}
.portal-small:nth-of-type(2){background-image:url('/assets/images/coverpic/cover-3.png')}
.portal-small:nth-of-type(3){background-image:url('/assets/images/coverpic/cover-5.webp')}
.portal-content{padding:26px;color:#fff}
.portal-content .tag{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.24);color:#fff}
.portal-content h3{font-size:22px;font-weight:700;color:#fff;margin:10px 0 8px;line-height:1.4}
.portal-content p{font-size:14px;color:rgba(255,255,255,.88);margin-bottom:14px}
.portal-link{color:#fff;font-size:14px;font-weight:600}
.portal-link:hover{color:var(--c-primary);transition:.2s}
.portal-big h3{font-size:24px}
.portal-big p{max-width:380px}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-mid);box-shadow:var(--shadow-sm);margin-bottom:16px;overflow:hidden;transition:box-shadow .2s ease}
.faq-item[open]{box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 22px;min-height:56px;font-size:16px;font-weight:600;color:var(--c-ink);transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{width:28px;height:28px;border-radius:8px;background:var(--c-bg);display:inline-flex;align-items:center;justify-content:center;font-size:14px;color:var(--c-secondary);transition:all .2s ease;flex-shrink:0}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--grad-soft);color:var(--c-primary)}
.faq-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--c-body)}

/* ===== Final CTA ===== */
.final-cta{background:var(--grad-main);border-radius:var(--r-lg);padding:44px 50px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;color:#fff;position:relative;overflow:hidden}
.final-cta::after{content:"";position:absolute;right:-50px;top:-60px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.1)}
.final-cta h2{font-size:clamp(22px,3vw,30px);color:#fff;line-height:1.4;margin:0}
.final-cta p{color:rgba(255,255,255,.86);margin:8px 0 0}
.final-cta .btn{position:relative;z-index:2}

/* ===== Footer ===== */
.site-footer{background:linear-gradient(135deg,#1F2937 0%,#31456A 100%);color:#C4CDD9;padding:68px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:44px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text em{color:var(--c-primary)}
.footer-desc{font-size:14px;line-height:1.8;color:#AAB5C4;margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 18px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:11px}
.footer-links a{color:#C4CDD9;font-size:14px;transition:all .2s ease}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-newsletter p{font-size:14px;color:#AAB5C4;margin:0 0 14px}
.footer-form{display:flex;background:rgba(255,255,255,.08);border-radius:10px;padding:5px;border:1px solid rgba(255,255,255,.1)}
.footer-form input{flex:1;border:none;background:transparent;height:38px;padding:0 10px;color:#fff;font-size:14px;min-width:0}
.footer-form input:focus{outline:none}
.footer-form input::placeholder{color:#8B98A8}
.footer-form button{background:var(--grad-main);color:#fff;border:none;border-radius:7px;height:38px;padding:0 14px;font-size:13px;font-weight:600;cursor:pointer}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#AAB5C4}
.footer-bottom a{color:#AAB5C4}
.footer-bottom a:hover{color:#fff}
.footer-legal{display:flex;gap:20px}

/* ===== Responsive ===== */
@media (max-width:1023.98px){
  .nav-burger{display:inline-flex}
  .main-nav{position:fixed;top:0;right:0;z-index:101;height:100vh;width:min(82vw,340px);background:#fff;box-shadow:var(--shadow-lg);transform:translateX(100%);transition:transform .3s ease;margin:0;display:block}
  .main-nav.is-open{transform:translateX(0)}
  .main-nav .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:86px 20px 30px;height:100%;overflow-y:auto}
  .nav-item .nav-link{font-size:16px;padding:13px 12px}
  .nav-link.active{background:var(--grad-soft)}
  .nav-item.has-mega .mega-panel{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;border-left:2px solid var(--c-line);border-radius:0;width:100%;display:block;padding:6px 0 12px 12px;margin:2px 0 6px;height:auto}
  .mega-cover{display:none}
  .mega-links a{padding:8px 10px}
  .nav-overlay{display:block;position:fixed;inset:0;background:rgba(31,41,55,.5);z-index:99;opacity:0;visibility:hidden;transition:opacity .3s ease}
  .nav-overlay.active{opacity:1;visibility:visible}
  .header-cta .btn-primary span{display:none}
  .header-cta .btn-primary{padding:0 14px}
  .hero-main{padding:56px 0 66px}
  .hero-live-card{margin:26px 0 0}
  .subscribe-grid{grid-template-columns:1fr;gap:28px}
  .portal-grid{grid-template-columns:1fr}
  .portal-big{grid-row:auto;min-height:300px}
  .hl-item:first-child{grid-column:1/-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  :root{--space-sec:56px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .portal-big .portal-content{padding:24px}
  .section-head h2{font-size:26px}
  .hl-grid{grid-template-columns:1fr}
  .hl-item:first-child{grid-template-columns:1fr;}
  .countdown-grid{gap:12px}
  .time-card{min-width:72px;padding:16px 6px}
  .time-card .num{font-size:30px}
  .subscribe-form{flex-direction:column;background:transparent;box-shadow:none;padding:0;gap:10px}
  .subscribe-form input{background:#fff;border-radius:10px;height:46px;padding:0 14px}
  .subscribe-form button{height:46px}
  .alert-inner .alert-right{display:none}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero-actions .btn{width:100%}
  .hero-live-card{padding:20px}
  .hero-title{font-size:30px}
  .hero-title span{font-size:17px}
  .news-grid .news-card:first-child{grid-column:span 1}
  .hl-item:first-child{padding:22px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: article */
:root {
    --brand-a: #21B0A8;
    --brand-b: #31456A;
    --brand-gradient: linear-gradient(135deg, #21B0A8 30%, #31456A 70%);
    --ink: #1F2937;
    --body: #3F4A5A;
    --muted: #6C7A8C;
    --line: #E5E9EF;
    --soft-line: #F0F2F5;
    --bg-soft: #F6F7F9;
    --bg-white: #FFFFFF;
    --orange: #FF7A45;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(49, 69, 106, 0.06);
    --shadow-md: 0 8px 24px rgba(49, 69, 106, 0.12);
    --shadow-lg: 0 16px 40px rgba(31, 41, 55, 0.14);
    --space-section: 84px;
    --space-section-mobile: 56px;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
    background: var(--bg-white);
    color: var(--body);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--brand-a);
    text-decoration: none;
    transition: color .2s ease, border-color .2s ease, background .2s ease;
}

a:hover {
    color: var(--brand-b);
}

button, input, select, textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

h1, h2, h3, h4, h5 {
    color: var(--ink);
    line-height: 1.35;
    margin: 0 0 .5em;
}

p {
    margin-top: 0;
}

ul, ol {
    padding-left: 1.4rem;
}

/* ---------- 容器 ---------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 13px 22px;
    line-height: 1;
    min-height: 44px;
    border: 1px solid transparent;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-primary {
    background: var(--brand-gradient);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    color: #fff;
}

.btn-outline {
    border: 1px solid rgba(255, 255, 255, .75);
    background: transparent;
    color: #fff;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, .12);
    border-color: #fff;
    color: #fff;
}

.btn-lg {
    padding: 16px 30px;
    border-radius: 10px;
    font-size: .95rem;
}

.btn-sm {
    padding: 10px 16px;
    min-height: 38px;
    font-size: .85rem;
}

/* ---------- Header 顶部导航 ---------- */
.site-header {
    position: relative;
    z-index: 80;
    background: rgba(255, 255, 255, .95);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 78px;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-mark {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    border-radius: 14px;
    background: var(--brand-gradient);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-sm);
}

.brand-text {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--brand-b);
    letter-spacing: -.02em;
    line-height: 1.2;
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.brand-text em {
    font-style: normal;
    font-size: .78em;
    color: var(--brand-a);
    background: rgba(33, 176, 168, .1);
    padding: 2px 7px;
    border-radius: 6px;
    letter-spacing: .04em;
}

.brand-sub {
    display: block;
    font-size: .66rem;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: .02em;
}

.brand-logo .brand-sub + em {
    margin-left: 2px;
}

.brand-text .brand-sub {
    display: block;
}

.brand-text:has(.brand-sub) {
    flex-wrap: wrap;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

/* ---------- 主导航 ---------- */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: 0 20px;
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: flex-start;
    gap: 6px;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: .95rem;
    font-weight: 500;
    color: var(--body);
    padding: 12px 15px;
    border-radius: 8px;
    transition: color .2s, background .2s;
    line-height: 1.4;
}

.nav-link i {
    font-size: .7rem;
    opacity: .8;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.active {
    color: var(--brand-b);
    background: rgba(49, 69, 106, .06);
    outline: none;
}

.nav-link.active {
    position: relative;
    font-weight: 700;
}

.nav-link.active::after {
    content: "";
    position: absolute;
    left: 15px;
    right: 15px;
    bottom: 5px;
    height: 3px;
    border-radius: 4px;
    background: var(--brand-gradient);
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    color: var(--brand-b);
    font-size: 1.1rem;
    transition: all .2s;
}

.menu-toggle:hover {
    background: var(--bg-soft);
}

.menu-toggle:focus-visible,
.nav-link:focus-visible,
.btn:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(33, 176, 168, .35);
    outline-offset: 2px;
}

.has-mega {
    position: relative;
}

.mega-panel {
    position: absolute;
    top: calc(100% + 12px);
    right: -110px;
    width: 680px;
    max-width: 90vw;
    background: rgba(255, 255, 255, .98);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 18px;
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 18px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
    z-index: 20;
}

.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mega-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px 2px;
}

.mega-links-title {
    font-size: .72rem;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 700;
    letter-spacing: .1em;
    margin-bottom: 8px;
}

.mega-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 10px;
    border-radius: 10px;
    color: var(--body);
    font-size: .92rem;
    font-weight: 500;
}

.mega-links a i {
    font-size: .75rem;
    opacity: 0;
    transform: translateX(-6px);
    transition: all .2s;
}

.mega-links a:hover {
    background: var(--bg-soft);
    color: var(--brand-b);
}

.mega-links a:hover i {
    opacity: 1;
    transform: translateX(0);
}

.mega-cover {
    border-radius: 12px;
    overflow: hidden;
    min-height: 200px;
    background: linear-gradient(135deg, rgba(33, 176, 168, .85), rgba(49, 69, 106, .92)), url("/assets/images/coverpic/cover-1.webp") center/cover no-repeat;
    position: relative;
}

.mega-cover .cover-mask {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 20px 18px;
    background: linear-gradient(0deg, rgba(31, 41, 55, .45), rgba(31, 41, 55, 0));
}

.mega-cover span {
    display: block;
    color: #fff;
    font-size: .8rem;
    font-weight: 600;
    opacity: .85;
    margin-bottom: 4px;
}

.mega-cover strong {
    display: block;
    color: #fff;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.5;
}

/* ---------- 文章页 Hero ---------- */
.page-hero {
    position: relative;
    padding: 76px 0 64px;
    background:
        linear-gradient(135deg, rgba(49, 69, 106, .88), rgba(33, 176, 168, .68)),
        url("/assets/images/backpic/back-2.png") center/cover no-repeat;
    color: #fff;
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.breadcrumb-nav {
    background: transparent;
    padding: 0;
    margin-bottom: 34px;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0;
    font-size: .85rem;
    color: rgba(255, 255, 255, .78);
}

.breadcrumb-list li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-list li + li::before {
    content: "/";
    opacity: .55;
}

.breadcrumb-list a {
    color: rgba(255, 255, 255, .88);
    transition: color .2s;
}

.breadcrumb-list a:hover {
    color: #fff;
}

.page-hero h1 {
    color: #fff;
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -.02em;
    max-width: 860px;
    margin-bottom: 18px;
}

.hero-article-excerpt {
    font-size: 1.05rem;
    max-width: 780px;
    color: rgba(255, 255, 255, .84);
    margin-bottom: 26px;
}

.article-hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px 22px;
    color: rgba(255, 255, 255, .82);
    font-size: .88rem;
}

.article-hero-meta .meta-icon {
    opacity: .75;
    margin-right: 6px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .22);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: .78rem;
}

.hero-badge i {
    color: var(--orange);
}

/* ---------- 文章主体区域 ---------- */
.article-section {
    padding: var(--space-section) 0;
    background: var(--bg-soft);
    min-height: 60vh;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: 36px;
}

.article-main {
    min-width: 0;
}

.article-holder {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    padding: 42px 44px;
}

.article-body {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--body);
    overflow-wrap: break-word;
}

.article-body > *:first-child {
    margin-top: 0;
}

.article-body h2 {
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--ink);
    margin: 2.2em 0 .7em;
    padding-bottom: .45em;
    border-bottom: 1px solid var(--soft-line);
}

.article-body h3 {
    font-size: 1.22rem;
    font-weight: 700;
    color: var(--ink);
    margin: 1.8em 0 .6em;
}

.article-body h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--ink);
    margin: 1.5em 0 .5em;
}

.article-body p {
    margin: 0 0 1.4em;
}

.article-body a {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-body ul,
.article-body ol {
    margin: 0 0 1.6em;
    padding-left: 1.5rem;
}

.article-body li {
    margin-bottom: .5em;
}

.article-body img {
    border-radius: 12px;
    margin: 1.8em 0;
    box-shadow: var(--shadow-sm);
}

.article-body blockquote {
    margin: 2em 0;
    padding: 18px 22px;
    background: rgba(33, 176, 168, .05);
    border-left: 4px solid var(--brand-a);
    border-radius: 0 12px 12px 0;
    color: var(--body);
}

.article-body blockquote p {
    margin-bottom: 0;
}

.article-body code {
    background: var(--bg-soft);
    border: 1px solid var(--soft-line);
    border-radius: 6px;
    padding: 2px 7px;
    font-size: .9em;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.6em;
}

.article-body th,
.article-body td {
    border: 1px solid var(--line);
    padding: 10px 14px;
    font-size: .95rem;
}

/* ---------- 文章标签 ---------- */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 34px;
    padding-top: 26px;
    border-top: 1px solid var(--soft-line);
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-soft);
    border: 1px solid var(--soft-line);
    color: var(--body);
    font-size: .8rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 999px;
    transition: all .2s;
}

.tag:hover {
    border-color: rgba(33, 176, 168, .4);
    background: rgba(33, 176, 168, .06);
    color: var(--brand-b);
}

.tag i {
    color: var(--brand-a);
    font-size: .7rem;
}

/* ---------- 文章底部辅助导航 ---------- */
.article-bottom-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 26px;
    padding-top: 20px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand-b);
    font-weight: 600;
    font-size: .9rem;
    transition: all .2s;
}

.text-link i {
    transition: transform .2s;
}

.text-link:hover {
    color: var(--brand-a);
}

.text-link:hover i {
    transform: translateX(4px);
}

/* ---------- 右侧栏 ---------- */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 100px;
}

.sidebar-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.sidebar-card-body {
    padding: 24px;
}

.sidebar-cover {
    position: relative;
    min-height: 180px;
    background: linear-gradient(135deg, rgba(49, 69, 106, .55), rgba(33, 176, 168, .35)), url("/assets/images/coverpic/cover-5.webp") center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-cover .play-orb {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .95);
    color: var(--brand-b);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(31, 41, 55, .22);
    font-size: 1rem;
}

.sidebar-card h3 {
    font-size: 1.08rem;
    margin-bottom: 8px;
    color: var(--ink);
}

.sidebar-card p {
    font-size: .88rem;
    color: var(--muted);
    margin-bottom: 18px;
}

.sidebar-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-form input[type="email"] {
    width: 100%;
    height: 46px;
    border: 1px solid #D1D7E0;
    border-radius: var(--radius-sm);
    padding: 0 14px;
    background: #fff;
    color: var(--ink);
    transition: border-color .2s, box-shadow .2s;
}

.sidebar-form input[type="email"]:focus {
    outline: none;
    border-color: var(--brand-a);
    box-shadow: 0 0 0 3px rgba(33, 176, 168, .15);
}

.sidebar-mini-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-radius: 12px;
    background: var(--bg-soft);
    margin-bottom: 10px;
    border: 1px solid transparent;
    transition: all .2s;
}

.sidebar-mini-link:last-child {
    margin-bottom: 0;
}

.sidebar-mini-link i {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: var(--brand-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: .8rem;
}

.sidebar-mini-link span {
    flex: 1;
    color: var(--body);
    font-size: .9rem;
    font-weight: 600;
}

.sidebar-mini-link small {
    color: var(--muted);
    font-size: .72rem;
}

.sidebar-mini-link:hover {
    background: rgba(33, 176, 168, .06);
    border-color: rgba(33, 176, 168, .25);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    color: var(--brand-b);
}

/* ---------- 空状态 ---------- */
.not-found-box {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    padding: 110px 40px;
}

.not-found-box .empty-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 24px;
    background: var(--bg-soft);
    font-size: 2rem;
    color: var(--brand-a);
}

.not-found-box h2 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.not-found-box p {
    color: var(--muted);
    max-width: 400px;
    margin: 0 auto 30px;
}

/* ---------- 延伸阅读区 ---------- */
.related-section {
    margin-top: 48px;
}

.related-section .section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 28px;
}

.section-title-zh {
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--ink);
    margin: 0;
}

.section-title-sub {
    display: block;
    font-size: .82rem;
    color: var(--muted);
    font-weight: 500;
    letter-spacing: .05em;
    margin-top: 5px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.related-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}

.related-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(33, 176, 168, .35);
}

.related-card .related-cover {
    min-height: 196px;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative;
}

.related-card:first-child .related-cover {
    background-image: linear-gradient(135deg, rgba(49, 69, 106, .32), rgba(33, 176, 168, .18)), url("/assets/images/coverpic/cover-4.webp");
}

.related-card:last-child .related-cover {
    background-image: linear-gradient(135deg, rgba(33, 176, 168, .2), rgba(49, 69, 106, .45)), url("/assets/images/coverpic/cover-2.webp");
}

.related-cover .related-tag {
    position: absolute;
    left: 16px;
    top: 16px;
    background: rgba(255, 255, 255, .92);
    font-size: .76rem;
    color: var(--brand-b);
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 999px;
}

.related-body {
    padding: 22px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.related-body h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 8px;
}

.related-body p {
    font-size: .88rem;
    color: var(--muted);
    flex: 1;
    margin-bottom: 14px;
}

.related-link {
    color: var(--brand-b);
    font-size: .85rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.related-link i {
    font-size: .75rem;
    transition: transform .2s;
}

.related-card:hover .related-link i {
    transform: translateX(5px);
}

/* ---------- FAQ 区 ---------- */
.faq-section {
    margin-top: 80px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 44px;
    box-shadow: var(--shadow-sm);
}

.faq-section .section-title-zh {
    margin-bottom: 6px;
}

.faq-list {
    margin-top: 26px;
}

.faq-item {
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 14px;
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
}

.faq-item.is-open {
    border-color: rgba(33, 176, 168, .35);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: transparent;
    border: 0;
    padding: 14px 20px;
    text-align: left;
    color: var(--ink);
    font-size: .98rem;
    font-weight: 700;
    transition: background .2s;
}

.faq-question:hover {
    background: var(--bg-soft);
}

.faq-question i {
    color: var(--brand-a);
    flex-shrink: 0;
    font-size: 1rem;
    transform: rotate(0deg);
    transition: transform .28s ease;
}

.faq-item.is-open .faq-question i {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height .3s ease, opacity .25s ease, padding .3s ease;
    color: var(--body);
    font-size: .93rem;
    line-height: 1.85;
}

.faq-item.is-open .faq-answer {
    max-height: 300px;
    opacity: 1;
    padding: 0 20px 20px;
}

/* ---------- 文章底部 CTA ---------- */
.article-cta {
    margin-top: 72px;
    background: linear-gradient(135deg, #31456A 0%, #26354F 100%);
    border-radius: 24px;
    padding: 54px 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.article-cta::after {
    content: "";
    position: absolute;
    right: -120px;
    top: -120px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(33, 176, 168, .22);
    pointer-events: none;
}

.article-cta h2 {
    color: #fff;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.article-cta p {
    color: rgba(255, 255, 255, .75);
    max-width: 520px;
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

.cta-form {
    display: flex;
    gap: 12px;
    min-width: 380px;
    position: relative;
    z-index: 1;
}

.cta-form input {
    flex: 1;
    height: 52px;
    border: 1px solid rgba(255, 255, 255, .28);
    background: rgba(255, 255, 255, .1);
    color: #fff;
    border-radius: 10px;
    padding: 0 18px;
    transition: all .2s;
}

.cta-form input::placeholder {
    color: rgba(255, 255, 255, .6);
}

.cta-form input:focus {
    outline: none;
    background: rgba(255, 255, 255, .16);
    border-color: var(--brand-a);
    box-shadow: 0 0 0 3px rgba(33, 176, 168, .18);
}

/* ---------- 页脚 ---------- */
.site-footer {
    background: linear-gradient(135deg, #1F2937 0%, #31456A 100%);
    color: #C4CDD9;
    padding: 70px 0 0;
}

.site-footer .brand-logo {
    margin-bottom: 12px;
}

.site-footer .brand-text {
    color: #fff;
}

.site-footer .brand-text em {
    background: rgba(33, 176, 168, .2);
    color: #7FE0D8;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 48px;
    padding-bottom: 54px;
}

.footer-brand {
    max-width: 340px;
}

.footer-desc {
    color: #9DA9BE;
    font-size: .9rem;
    margin: 18px 0 0;
    line-height: 1.85;
}

.footer-col h4 {
    color: #fff;
    font-size: .95rem;
    font-weight: 700;
    margin-bottom: 22px;
    letter-spacing: .02em;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .9rem;
    color: #ADB9CD;
    transition: color .2s, transform .2s;
}

.footer-links a:hover {
    color: #fff;
    padding-left: 4px;
}

.footer-col > p {
    color: #ADB9CD;
    font-size: .88rem;
    margin-bottom: 14px;
}

.footer-form {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.footer-form input {
    flex: 1;
    min-width: 0;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, .22);
    background: rgba(255, 255, 255, .08);
    border-radius: 8px;
    padding: 0 14px;
    color: #fff;
    transition: border-color .2s, box-shadow .2s, background .2s;
}

.footer-form input:focus {
    outline: none;
    border-color: var(--brand-a);
    background: rgba(255, 255, 255, .14);
    box-shadow: 0 0 0 3px rgba(33, 176, 168, .2);
}

.footer-form input::placeholder {
    color: #8D99AC;
}

.footer-form button {
    min-height: 44px;
    padding: 0 18px;
    border: 0;
    border-radius: 8px;
    background: var(--brand-gradient);
    color: #fff;
    font-weight: 700;
    font-size: .85rem;
    transition: transform .2s, box-shadow .2s;
}

.footer-form button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    padding: 22px 0;
    font-size: .78rem;
    color: #90A0B5;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: #90A0B5;
    transition: color .2s;
}

.footer-legal a:hover {
    color: #fff;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
    .article-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .article-sidebar {
        position: static;
        flex-direction: row;
        align-items: stretch;
    }

    .sidebar-card {
        flex: 1;
    }

    .footer-grid {
        gap: 30px;
    }
}

@media (max-width: 1024px) {
    :root {
        --space-section: 56px;
    }

    .header-inner {
        min-height: 68px;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow-lg);
        padding: 16px 24px;
        flex-direction: column;
        display: none;
    }

    .main-nav.open {
        display: flex;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 4px;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        justify-content: space-between;
        padding: 14px 16px;
    }

    .mega-panel {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
    }
}

@media (max-width: 860px) {
    .article-holder {
        padding: 32px 26px;
    }

    .article-cta {
        flex-direction: column;
        align-items: flex-start;
        padding: 40px 28px;
    }

    .cta-form {
        min-width: 0;
        width: 100%;
        flex-direction: column;
    }

    .cta-form input {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        padding-bottom: 40px;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .faq-section {
        padding: 32px 24px;
    }

    .article-sidebar {
        flex-wrap: wrap;
    }
}

@media (max-width: 640px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .brand-sub {
        display: none;
    }

    .brand-text {
        font-size: 1.1rem;
    }

    .header-actions .btn-desktop {
        display: none;
    }

    .page-hero {
        padding: 52px 0 44px;
    }

    .breadcrumb-nav {
        margin-bottom: 24px;
    }

    .page-hero h1 {
        font-size: clamp(1.5rem, 8vw, 2.2rem);
    }

    .hero-article-excerpt {
        font-size: .95rem;
    }

    .article-hero-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .article-holder {
        padding: 24px 18px;
        border-radius: 16px;
    }

    .article-body {
        font-size: 1rem;
        line-height: 1.85;
    }

    .article-bottom-nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-sidebar {
        flex-direction: column;
    }

    .sidebar-card {
        width: 100%;
    }

    .related-body h3 {
        font-size: 1rem;
    }

    .article-cta {
        padding: 34px 20px;
        margin-top: 56px;
    }

    .article-cta h2 {
        font-size: 1.4rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 34px;
        padding-top: 24px;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-legal {
        flex-wrap: wrap;
        gap: 10px;
    }

    .footer-form {
        flex-direction: column;
        max-width: 320px;
    }

    .not-found-box {
        padding: 70px 24px;
    }

    .not-found-box h2 {
        font-size: 1.4rem;
    }

    .faq-section {
        padding: 24px 18px;
    }
}

@media (max-width: 480px) {
    .related-card .related-cover {
        min-height: 160px;
    }

    .mega-panel {
        right: auto;
        left: 0;
    }
}

/* roulang page: category1 */
:root {
  --c-cyan: #21B0A8;
  --c-ink: #31456A;
  --c-deep: #1F2937;
  --c-bg: #F6F7F9;
  --c-white: #FFFFFF;
  --c-pale: #EFF6F6;
  --c-text: #1F2937;
  --c-body: #3F4A5A;
  --c-muted: #6C7A8C;
  --c-border: #E5E9EF;
  --c-softline: #F0F2F5;
  --c-accent: #FF7A45;
  --c-accent-soft: rgba(255,122,69,.12);
  --grad-brand: linear-gradient(135deg, #21B0A8 30%, #31456A 70%);
  --grad-cta: linear-gradient(135deg, #21B0A8 0%, #31456A 100%);
  --font-sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(49,69,106,.06);
  --shadow-md: 0 10px 30px rgba(49,69,106,.12);
  --shadow-lg: 0 20px 40px rgba(31,41,55,.16);
  --container-w: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--c-white);
  color: var(--c-body);
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--c-cyan);
}

button, input {
  font-family: inherit;
}

ul, ol {
  padding-left: 0;
  list-style: none;
  margin: 0;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--c-text);
  line-height: 1.35;
  font-weight: 700;
}

h2 {
  font-size: clamp(30px, 4vw, 38px);
  letter-spacing: -0.5px;
}

h3 {
  font-size: 18px;
  font-weight: 600;
}

p {
  margin: 0;
}

.container,
.grid-container {
  max-width: var(--container-w) !important;
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
  width: 100%;
}

section[id] {
  scroll-margin-top: 96px;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--c-softline);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 74px;
  position: relative;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-logo:hover {
  color: inherit;
}

.logo-mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-brand);
  border-radius: 11px;
  color: #fff;
  box-shadow: 0 6px 14px rgba(49,69,106,.22);
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-deep);
  display: inline-flex;
  align-items: baseline;
  line-height: 1.2;
}

.brand-text em {
  font-style: normal;
  color: var(--c-cyan);
  margin-left: 2px;
}

.brand-sub {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--c-muted);
  margin-top: 2px;
  letter-spacing: .5px;
}

.main-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  padding: 12px 6px;
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.nav-link i {
  font-size: 12px;
  color: var(--c-muted);
  transition: transform .2s ease;
}

.nav-list > .nav-item.has-mega:hover .nav-link i,
.nav-list > .nav-item.has-mega:focus-within .nav-link i {
  transform: rotate(180deg);
}

.nav-link:hover,
.nav-link.active {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.nav-link.active {
  font-weight: 600;
}

.mega-panel {
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  transform: translateX(-50%) translateY(8px);
  width: 660px;
  min-height: 190px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  display: flex;
  overflow: hidden;
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
}

.nav-item.has-mega:hover .mega-panel,
.nav-item.has-mega:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-links {
  flex: 1;
  padding: 22px 24px;
}

.mega-links-title {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 12px;
}

.mega-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 15px;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-softline);
  transition: color .2s ease, padding-left .2s ease;
}

.mega-links a:last-child {
  border-bottom: 0;
}

.mega-links a:hover {
  color: var(--c-cyan);
  padding-left: 6px;
}

.mega-links a i {
  font-size: 13px;
  color: var(--c-muted);
}

.mega-cover {
  width: 230px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(33,176,168,.92), rgba(49,69,106,.94)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  display: flex;
  align-items: flex-end;
}

.nav-item:last-child .mega-cover {
  background: linear-gradient(135deg, rgba(49,69,106,.93), rgba(33,176,168,.82)), url('/assets/images/coverpic/cover-8.webp') center/cover no-repeat;
}

.cover-mask {
  padding: 20px;
  color: #fff;
}

.cover-mask span {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,.78);
  margin-bottom: 6px;
}

.cover-mask strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 6px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--grad-cta);
  color: #fff;
  border: 0;
  font-size: 14px;
  font-weight: 600;
  height: 40px;
  padding: 0 18px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(49,69,106,.18);
  transition: transform .2s ease, box-shadow .2s ease, opacity .2s ease;
}

.header-cta:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(49,69,106,.2);
}

.header-cta:active {
  transform: translateY(0);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--c-border);
  background: #fff;
  border-radius: 12px;
  color: var(--c-text);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}

.nav-toggle:hover {
  background: var(--c-pale);
  color: var(--c-cyan);
}

/* ============ Hero ============ */
.page-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(112deg, rgba(23,34,52,.92), rgba(49,69,106,.87) 52%, rgba(33,176,168,.64)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
}

.page-hero .grid-container {
  min-height: 560px;
  padding-top: 76px;
  padding-bottom: 76px;
  position: relative;
  z-index: 2;
}

.hero-softline {
  width: 90px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(255,255,255,.18));
  margin: 24px 0;
}

.page-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff;
}

.eyebrow .pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 0 rgba(255,122,69,.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,122,69,.45); }
  60% { box-shadow: 0 0 0 10px rgba(255,122,69,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,122,69,0); }
}

.page-hero .hero-title {
  color: #fff;
  font-size: clamp(40px, 6.4vw, 58px);
  letter-spacing: -1.5px;
  line-height: 1.2;
  margin-top: 24px;
}

.page-hero .hero-title em {
  font-style: normal;
  background: linear-gradient(90deg, #7FE3DB, #FFFFFF);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-hero .hero-lead {
  color: rgba(255,255,255,.84);
  font-size: 17px;
  max-width: 590px;
  line-height: 1.9;
  margin-top: 22px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
  height: 48px;
  padding: 0 24px;
  border-radius: 12px;
  border: 0;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

.btn-primary {
  background: var(--grad-cta);
  color: #fff !important;
  box-shadow: 0 10px 24px rgba(19,32,67,.25);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(13,24,55,.32);
}

.btn-secondary {
  background: rgba(255,255,255,.96);
  color: var(--c-ink) !important;
  border: 1px solid rgba(255,255,255,.24);
}

.btn-secondary:hover {
  color: var(--c-ink);
  transform: translateY(-2px);
  background: #fff;
  box-shadow: 0 12px 24px rgba(13,24,55,.15);
}

.btn:active {
  transform: translateY(0);
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.7);
  font-size: 13px;
  margin-top: 22px;
}

.hero-note i {
  color: #7FE3DB;
}

.hero-card {
  background: rgba(255,255,255,.98);
  color: var(--c-body);
  border-radius: 22px;
  padding: 28px 26px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
}

.hero-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--c-softline);
  color: var(--c-text);
}

.hero-card-head i {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--c-accent-soft);
  color: var(--c-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hero-card-head strong {
  font-size: 16px;
  font-weight: 700;
}

.hero-card-list {
  margin: 14px 0 16px;
}

.hero-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--c-body);
  border-bottom: 1px dashed var(--c-softline);
}

.hero-card-list li:last-child {
  border-bottom: 0;
}

.hero-card-list span {
  color: var(--c-cyan);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 22px;
}

.hero-card p {
  font-size: 13px;
  color: var(--c-muted);
  background: var(--c-bg);
  padding: 10px 12px;
  border-radius: 10px;
}

/* ============ Section common ============ */
.page-section {
  padding: 88px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 42px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .5px;
  color: var(--c-cyan);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-label i {
  font-size: 14px;
}

.section-desc {
  color: var(--c-muted);
  max-width: 500px;
  font-size: 15px;
  line-height: 1.8;
}

.bg-soft {
  background: var(--c-bg);
}

/* ============ Roadmap ============ */
.roadmap-wrap {
  margin-top: 12px;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 22px;
}

.roadmap-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 26px 18px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.roadmap-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(33,176,168,.35);
}

.roadmap-step {
  width: 40px;
  height: 40px;
  border-radius: 13px;
  background: var(--grad-cta);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 8px 16px rgba(49,69,106,.2);
}

.roadmap-card h3 {
  margin: 18px 0 10px;
  font-size: 17px;
}

.roadmap-card p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.75;
}

/* ============ Scene section ============ */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 1fr;
  gap: 24px;
}

.scene-main {
  grid-column: span 4;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  min-height: 360px;
  box-shadow: var(--shadow-sm);
  color: #fff;
}

.scene-main img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.scene-main:hover img {
  transform: scale(1.03);
}

.scene-main .scene-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, rgba(49,69,106,.2), rgba(31,41,55,.9));
  z-index: 2;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.scene-tag {
  align-self: flex-start;
  background: var(--c-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.scene-main h3 {
  color: #fff;
  font-size: 26px;
  margin-bottom: 8px;
}

.scene-main p {
  color: rgba(255,255,255,.85);
  font-size: 15px;
  max-width: 430px;
}

.scene-side {
  grid-column: span 2;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 26px;
  min-height: 210px;
  display: flex;
  flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}

.scene-side:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.scene-icon {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--grad-cta);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: auto;
}

.scene-side h3 {
  font-size: 17px;
  margin: 18px 0 8px;
}

.scene-side p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.7;
}

.scene-mini {
  grid-column: span 2;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  padding: 26px;
  transition: transform .25s ease, box-shadow .25s ease;
}

.scene-mini:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.scene-mini .scene-icon {
  margin-bottom: 16px;
}

.scene-mini h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.scene-mini p {
  font-size: 14px;
  color: var(--c-muted);
}

/* ============ Checklist / highlights ============ */
.sticky-copy {
  position: sticky;
  top: 110px;
  padding-right: 24px;
}

.sticky-copy .section-label {
  text-transform: none;
}

.sticky-copy h2 {
  font-size: clamp(28px, 3.8vw, 38px);
  margin: 8px 0 18px;
}

.sticky-copy p {
  color: var(--c-muted);
  font-size: 15px;
}

.sticky-link-list {
  margin-top: 28px;
}

.sticky-link-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-weight: 600;
  color: var(--c-text);
}

.sticky-link-list i {
  color: var(--c-cyan);
}

.checklist-wrap {
  display: grid;
  gap: 26px;
}

.check-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, border-color .25s ease;
}

.check-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(33,176,168,.4);
}

.check-item-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.check-num {
  width: 46px;
  height: 46px;
  background: var(--c-pale);
  color: var(--c-ink);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.check-item h3 {
  font-size: 20px;
}

.check-item p {
  font-size: 15px;
  color: var(--c-muted);
  margin-bottom: 14px;
}

.check-list-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.check-list-row li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--c-body);
  padding: 9px 0;
}

.check-list-row li i {
  color: var(--c-cyan);
  margin-top: 5px;
}

.tip-bar {
  margin-top: 34px;
  background: linear-gradient(120deg, #F0FAF9, #F4F0FA);
  border: 1px solid #DBE9ED;
  border-left: 5px solid var(--c-cyan);
  border-radius: 14px;
  padding: 18px 22px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 14px;
  color: var(--c-ink);
}

.tip-bar i {
  color: var(--c-cyan);
  font-size: 17px;
  margin-top: 6px;
}

/* ============ Capability / support ============ */
.cap-wrap {
  background: var(--c-deep);
  border-radius: var(--radius-lg);
  padding: 44px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  color: #fff;
  margin-top: 28px;
}

.cap-intro {
  padding-right: 36px;
}

.cap-intro h2 {
  color: #fff;
  font-size: clamp(28px, 3.4vw, 36px);
  margin-bottom: 16px;
}

.cap-intro p {
  color: rgba(255,255,255,.8);
  font-size: 15px;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.cap-card {
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  padding: 22px;
  transition: background .25s ease, transform .25s ease;
}

.cap-card:hover {
  background: rgba(255,255,255,.14);
  transform: translateY(-2px);
}

.cap-card i {
  color: #7FE3DB;
  font-size: 20px;
}

.cap-card h3 {
  color: #fff;
  font-size: 15px;
  margin: 14px 0 8px;
}

.cap-card p {
  font-size: 13px;
  color: rgba(255,255,255,.75);
  line-height: 1.7;
}

.cap-card small {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--c-accent);
  font-weight: 600;
}

/* ============ Reference content ============ */
.reference-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
}

.ref-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 20px;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.ref-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.ref-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #E9EEF4;
}

.ref-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.ref-card:hover .ref-cover img {
  transform: scale(1.04);
}

.ref-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.ref-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.ref-chip {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--c-accent-soft);
  color: var(--c-accent);
  font-size: 12px;
  font-weight: 600;
}

.ref-date {
  font-size: 12px;
  color: var(--c-muted);
}

.ref-body h3 {
  font-size: 20px;
  line-height: 1.5;
  margin-bottom: 8px;
}

.ref-body p {
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 18px;
}

.ref-more {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-cyan);
  font-size: 14px;
  font-weight: 600;
}

.ref-more:hover {
  color: var(--c-ink);
}

.ref-more i {
  transition: transform .2s;
}

.ref-more:hover i {
  transform: translateX(4px);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.tag-row span {
  background: #fff;
  border: 1px solid var(--c-border);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--c-ink);
}

/* ============ FAQ ============ */
.faq-section {
  background: var(--c-bg);
}

.faq-grid {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 16px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .25s ease, border-color .25s ease;
}

.faq-item:hover {
  border-color: rgba(33,176,168,.3);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 60px;
  padding: 16px 22px;
  font-weight: 600;
  color: var(--c-text);
  font-size: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--c-pale);
  color: var(--c-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}

.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  background: var(--c-cyan);
  color: #fff;
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--c-muted);
  font-size: 15px;
}

.faq-answer p {
  border-top: 1px solid var(--c-softline);
  padding-top: 14px;
}

/* ============ CTA ============ */
.subscribe-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, #1F2937 0%, #31456A 60%, #1D3444 100%);
  color: #fff;
  border-radius: 24px;
  margin: 80px 0 20px;
  padding: 52px 48px;
}

.subscribe-decoration {
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(33,176,168,.28), transparent 65%);
  border-radius: 50%;
}

.subscribe-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 40px;
}

.subscribe-copy h2 {
  color: #fff;
  font-size: clamp(26px, 3vw, 34px);
  margin-bottom: 12px;
}

.subscribe-copy p {
  color: rgba(255,255,255,.76);
  font-size: 15px;
  max-width: 480px;
}

.subscribe-form {
  display: flex;
  gap: 10px;
  background: rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 18px;
  backdrop-filter: blur(10px);
}

.subscribe-form input {
  flex: 1;
  height: 48px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 12px;
  padding: 0 16px;
  background: rgba(255,255,255,.9);
  font-size: 14px;
  color: var(--c-text);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.subscribe-form input:focus {
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 3px rgba(33,176,168,.25);
}

/* ============ Footer ============ */
.site-footer {
  background: linear-gradient(135deg, #1A2233 0%, #253449 60%, #31456A 100%);
  color: #C4CDD9;
  margin-top: 40px;
  border-radius: 32px 32px 0 0;
}

.site-footer .grid-container {
  padding-top: 58px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
  gap: 48px;
  padding-bottom: 42px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand .brand-logo {
  margin-bottom: 14px;
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-brand .brand-text em {
  color: #7FE3DB;
}

.footer-desc {
  color: rgba(255,255,255,.58);
  font-size: 14px;
  margin-top: 12px;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 9px;
}

.footer-links a {
  color: rgba(255,255,255,.66);
  font-size: 14px;
  transition: color .2s ease, padding-left .2s ease;
}

.footer-links a:hover {
  color: #7FE3DB;
  padding-left: 4px;
}

.footer-col > p {
  color: rgba(255,255,255,.58);
  font-size: 13px;
  margin-bottom: 14px;
}

.footer-form {
  display: flex;
  gap: 8px;
}

.footer-form input {
  flex: 1;
  min-width: 0;
  height: 42px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 10px;
  background: rgba(255,255,255,.1);
  padding: 0 14px;
  color: #fff;
  font-size: 13px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.footer-form input::placeholder {
  color: rgba(255,255,255,.45);
}

.footer-form input:focus {
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 3px rgba(33,176,168,.2);
}

.footer-form button {
  height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 10px;
  background: var(--grad-cta);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .2s, transform .2s;
}

.footer-form button:hover {
  transform: translateY(-1px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 34px;
  color: rgba(255,255,255,.48);
  font-size: 13px;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-legal {
  display: flex;
  gap: 16px;
  font-size: 13px;
}

.footer-legal a {
  color: rgba(255,255,255,.6);
  transition: color .2s;
}

.footer-legal a:hover {
  color: #7FE3DB;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .header-actions {
    margin-left: auto;
  }

  .header-cta-header {
    display: none;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1200;
    width: min(420px, 88vw);
    background: #fff;
    margin-left: 0;
    padding: 84px 28px 32px;
    box-shadow: var(--shadow-lg);
    transform: translateX(102%);
    opacity: 0;
    visibility: hidden;
    transition: transform .28s ease, opacity .28s ease, visibility .28s;
    overflow: auto;
  }

  .main-nav.nav-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--c-softline);
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--c-softline);
  }

  .nav-link {
    padding: 14px 6px;
    justify-content: space-between;
    font-size: 15px;
  }

  .mega-panel {
    position: static;
    transform: none !important;
    width: 100%;
    min-height: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none;
    box-shadow: none;
    border: 0;
    border-top: 1px solid var(--c-softline);
    border-radius: 0;
    padding: 0 0 0 10px;
  }

  .nav-item.has-mega.open .mega-panel {
    display: flex;
  }

  .mega-cover {
    display: none;
  }

  .page-hero .grid-container {
    min-height: auto;
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .cap-wrap {
    grid-template-columns: 1fr;
    padding: 36px 28px;
  }

  .cap-intro {
    padding-right: 0;
  }

  .reference-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page-section {
    padding: 64px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 28px;
  }

  .roadmap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scene-grid {
    grid-template-columns: 1fr;
  }

  .scene-main,
  .scene-side,
  .scene-mini {
    grid-column: span 1;
  }

  .scene-main {
    min-height: 300px;
  }

  .sticky-copy {
    position: static;
    padding-right: 0;
  }

  .subscribe-section {
    padding: 34px 24px;
    margin-top: 50px;
  }

  .subscribe-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .check-list-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container,
  .grid-container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-header .header-inner {
    gap: 8px;
  }

  .brand-sub {
    display: none;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
  }

  .brand-text {
    font-size: 17px;
  }

  .hero-btns {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .hero-note {
    flex-wrap: wrap;
  }

  .hero-card {
    padding: 22px 18px;
    margin-top: 30px;
  }

  .roadmap-grid {
    grid-template-columns: 1fr;
  }

  .cap-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .cap-wrap {
    padding: 28px 18px;
  }

  .subscribe-form {
    flex-direction: column;
  }

  .subscribe-form button {
    width: 100%;
  }

  .footer-form {
    flex-direction: column;
  }

  .footer-form button {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
            --primary-a: #21B0A8;
            --primary-b: #31456A;
            --primary-deep: #1F2937;
            --accent-warm: #FF7A45;
            --bg-light: #F6F7F9;
            --bg-white: #FFFFFF;
            --text-dark: #1F2937;
            --text-body: #3F4A5A;
            --text-muted: #6C7A8C;
            --border-light: #E5E9EF;
            --border-divider: #F0F2F5;
            --shadow-sm: 0 2px 8px rgba(49, 69, 106, 0.06);
            --shadow-md: 0 8px 24px rgba(49, 69, 106, 0.12);
            --shadow-lg: 0 16px 40px rgba(31, 41, 55, 0.14);
            --radius-card: 16px;
            --radius-large: 20px;
            --radius-btn: 10px;
            --radius-tag: 8px;
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            --font-en: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --transition-fast: all 0.2s ease;
            --transition-base: all 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary-b);
            text-decoration: none;
            transition: var(--transition-fast);
        }

        a:hover {
            color: var(--primary-a);
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            line-height: 1;
            white-space: nowrap;
            text-decoration: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, #21B0A8 30%, #31456A 70%);
            color: #fff;
            box-shadow: 0 4px 16px rgba(49, 69, 106, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(49, 69, 106, 0.28);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(49, 69, 106, 0.15);
        }

        .btn-secondary {
            background: transparent;
            border: 1.5px solid rgba(49, 69, 106, 0.5);
            color: var(--primary-b);
            box-shadow: none;
        }

        .btn-secondary:hover {
            border-color: var(--primary-b);
            background: rgba(49, 69, 106, 0.06);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-light {
            background: #fff;
            color: var(--primary-b);
            box-shadow: 0 4px 16px rgba(31, 41, 55, 0.12);
        }

        .btn-light:hover {
            background: rgba(255, 255, 255, 0.92);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(31, 41, 55, 0.16);
            color: var(--primary-b);
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
            position: relative;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .logo-mark {
            position: relative;
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-a) 30%, var(--primary-b) 70%);
            border-radius: 10px;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 12px rgba(49, 69, 106, 0.24);
        }

        .logo-mark .fa-cloud {
            font-size: 14px;
            opacity: 0.9;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-deep);
            letter-spacing: -0.2px;
            line-height: 1.2;
            font-family: var(--font-en);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .brand-text em {
            font-style: normal;
            font-size: 14px;
            color: var(--primary-b);
            font-weight: 600;
            margin-top: -2px;
            font-family: var(--font-cn);
        }

        .brand-sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.3px;
            margin-top: 1px;
        }

        .main-nav {
            margin-left: auto;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            list-style: none;
        }

        .nav-item {
            position: relative;
            margin: 0;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 18px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition-fast);
            border-radius: 4px;
        }

        .nav-link:hover {
            color: var(--primary-a);
        }

        .nav-link.active {
            color: var(--primary-a);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 3px;
            border-radius: 3px 3px 0 0;
            background: linear-gradient(135deg, var(--primary-a) 30%, var(--primary-b) 70%);
        }

        .nav-link .fa-angle-down {
            font-size: 12px;
            opacity: 0.7;
            transition: transform 0.3s ease;
        }

        .nav-item:hover .nav-link .fa-angle-down {
            transform: rotate(180deg);
        }

        /* Mega Menu */
        .mega-panel {
            position: absolute;
            top: 68px;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-divider);
            width: 640px;
            padding: 24px;
            display: flex;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
            z-index: 1001;
        }

        .nav-item:hover .mega-panel,
        .nav-item:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .mega-links {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mega-links-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 6px;
        }

        .mega-links a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 12px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            transition: var(--transition-fast);
        }

        .mega-links a:hover {
            background: var(--bg-light);
            color: var(--primary-b);
        }

        .mega-links a i {
            font-size: 12px;
            opacity: 0.5;
            transition: transform 0.2s ease;
        }

        .mega-links a:hover i {
            opacity: 1;
            transform: translateX(4px);
        }

        .mega-cover {
            flex: 0 0 220px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            border-radius: 12px;
            min-height: 200px;
            position: relative;
            overflow: hidden;
        }

        .cover-mask {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(49, 69, 106, 0.9) 0%, rgba(31, 41, 55, 0.4) 100%);
            padding: 16px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            gap: 6px;
            color: #fff !important;
        }

        .cover-mask span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            display: block!important;
            width: auto!important;
        }

        .cover-mask strong {
            font-size: 15px;
            line-height: 1.5;
            font-weight: 600;
            color: #fff !important;
            background: transparent !important;
            padding: 0;
            display: block!important;
            margin: 0;
        }

        /* Mobile Menu Button */
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: none;
            background: var(--bg-light);
            color: var(--primary-b);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition-fast);
        }

        .hamburger:hover {
            background: rgba(33, 176, 168, 0.1);
        }

        .hamburger.is-active {
            background: var(--primary-b);
            color: #fff;
        }

        /* Mobile menu overlay styles */
        .mobile-menu-backdrop {
            display: none;
        }

        /* ===== Hero Section ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(33, 176, 168, 0.06) 0%, var(--bg-light) 60%, #fff 100%);
            padding: 68px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(33, 176, 168, 0.1);
            border-radius: 20px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: #1a8a84;
            margin-bottom: 20px;
        }

        .hero-badge .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary-a);
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(33, 176, 168, 0.4);
            }
            50% {
                opacity: 0.8;
                box-shadow: 0 0 0 6px rgba(33, 176, 168, 0);
            }
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 22px;
            letter-spacing: -0.5px;
        }

        .hero-heading-accent {
            background: linear-gradient(135deg, var(--primary-a) 30%, var(--primary-b) 70%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-content p {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-meta-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .hero-visual {
            position: relative;
        }

        .visual-frame {
            background: #fff;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            border: 1px solid rgba(255, 255, 255, 0.8);
        }

        .visual-frame img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .visual-float-card {
            position: absolute;
            bottom: -18px;
            left: -14px;
            background: #fff;
            border-radius: 14px;
            padding: 14px 18px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .visual-float-badge {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary-a), var(--primary-b));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }

        .weak-text {
            font-size: 13px;
            color: var(--text-muted);
        }

        .strong-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-b);
        }

        .visual-float-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .visual-deco-circle {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(33, 176, 168, 0.12), rgba(49, 69, 106, 0.08));
            top: -120px;
            right: -100px;
            z-index: -1;
        }

        /* ===== Section Block styles ===== */
        .section-block {
            padding: 76px 0;
        }

        .section-block.bg-light {
            background: var(--bg-light);
        }

        .section-block.bg-deep {
            background: linear-gradient(135deg, #1F2937 30%, #31456A 70%);
            color: #fff;
        }

        .section-block.bg-white {
            background: #fff;
        }

        .section-block.with-divider {
            border-bottom: 1px solid var(--border-divider);
        }

        .section-header {
            margin-bottom: 44px;
            max-width: 720px;
        }

        .section-header .title-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            color: var(--primary-a);
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-top: 12px;
        }

        .section-header.white h2 {
            color: #fff;
        }

        .section-header.white p {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-header.light-tag .title-tag {
            color: var(--primary-a);
        }

        .section-header.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header.right {
            margin-left: auto;
        }

        .text-center {
            text-align: center;
        }

        /* ===== Website solution block ===== */
        .solution-block {
            background: var(--bg-white);
        }

        .solution-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 44px;
            align-items: center;
        }

        .solution-intro-media {
            background-image: url('/assets/images/coverpic/cover-5.webp');
            background-size: cover;
            background-position: center;
            border-radius: 18px;
            min-height: 320px;
            position: relative;
            overflow: hidden;
        }

        .solution-stats-number {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: #fff;
            box-shadow: var(--shadow-md);
            border-radius: 14px;
            padding: 16px 24px;
            margin-top: 24px;
            margin-bottom: 36px;
        }

        .stats-single {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .stats-single strong {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-b);
            font-variant-numeric: tabular-nums;
        }

        .stats-single span {
            font-size: 14px;
            color: var(--text-muted);
        }

        .solution-checklist {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 20px;
        }

        .check-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text-body);
            font-weight: 500;
        }

        .check-item i {
            width: 22px;
            height: 22px;
            background: rgba(33, 176, 168, 0.12);
            color: #1a8a84;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        .small-muted {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 8px;
        }

        /* ===== Feature cards grid ===== */
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .grid-two {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 30px 26px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-a), var(--primary-b));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card .feature-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, rgba(33, 176, 168, 0.12), rgba(49, 69, 106, 0.12));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary-b);
            margin-bottom: 18px;
            transition: var(--transition-base);
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--primary-a), var(--primary-b));
            color: #fff;
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== Flow / Process ===== */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .flow-item {
            text-align: center;
            position: relative;
            padding: 28px 16px;
        }

        .flow-item::after {
            content: '';
            position: absolute;
            top: 46px;
            left: calc(50% + 45px);
            width: calc(100% - 60px);
            border-top: 2px dashed #c9d2dd;
        }

        .flow-item:last-child::after {
            display: none;
        }

        .flow-number {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary-a), var(--primary-b));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin: 0 auto 16px;
            font-family: var(--font-en);
            font-variant-numeric: tabular-nums;
        }

        .flow-item h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .flow-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Card list ===== */
        .article-focus {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
            align-items: start;
        }

        .focus-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .focus-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 20px;
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border-light);
            transition: var(--transition-base);
        }

        .focus-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateY(-2px);
        }

        .focus-item .num-tag {
            font-size: 24px;
            font-weight: 800;
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-a);
            font-family: var(--font-en);
        }

        .focus-item h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .focus-item p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Numbers / data ===== */
        .data-numbers {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin: 40px 0;
        }

        .data-block {
            text-align: center;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 32px 20px;
            border: 1px solid var(--border-light);
        }

        .data-block strong {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-b);
            font-family: var(--font-en);
            display: block;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .data-block span {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== Split Section ===== */
        .split-layout {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 52px;
        }

        .split-title {
            position: sticky;
            top: 100px;
            align-self: start;
        }

        .split-title .section-header {
            margin-bottom: 20px;
        }

        .episode-list {
            border-top: 1px solid var(--border-light);
        }

        .episode-item {
            background: #fff;
            padding: 22px 4px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: var(--transition-fast);
        }

        .episode-item:hover {
            background: var(--bg-light);
        }

        .episode-date {
            font-size: 14px;
            padding: 4px 10px;
            background: rgba(33, 176, 168, 0.08);
            color: #1a8a84;
            font-family: var(--font-en);
            border-radius: 6px;
            white-space: nowrap;
            margin-top: 4px;
        }

        .episode-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .episode-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .episode-meta {
            display: flex;
            gap: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .episode-meta i {
            font-size: 12px;
        }

        /* ---- Video / cover card ---- */
        .media-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition-base);
        }

        .media-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .media-cover {
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }

        .media-cover img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .media-card:hover .media-cover img {
            transform: scale(1.03);
        }

        .media-play-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-b);
            font-size: 18px;
            box-shadow: 0 8px 20px rgba(31, 41, 55, 0.2);
            transition: var(--transition-base);
        }

        .media-card:hover .media-play-icon {
            background: linear-gradient(135deg, var(--primary-a), var(--primary-b));
            color: #fff;
        }

        .media-body {
            padding: 20px 22px 24px;
        }

        .media-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .media-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .cover-label {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(4px);
            color: var(--text-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .cover-label i {
            color: var(--accent-warm);
            font-size: 10px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }

        .acc-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .acc-item.is-open {
            box-shadow: var(--shadow-sm);
        }

        .acc-btn {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            background: transparent;
            border: none;
            text-align: left;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            font-family: var(--font-cn);
            transition: var(--transition-fast);
            line-height: 1.5;
        }

        .acc-btn:hover {
            color: var(--primary-a);
        }

        .acc-btn .acc-icon {
            font-size: 18px;
            font-weight: 400;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
            color: var(--primary-a);
        }

        .acc-item.is-open .acc-icon {
            transform: rotate(45deg);
        }

        .acc-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .acc-content-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.85;
            border-top: none;
        }

        /* ===== CTA Banner ===== */
        .cta-block {
            background: linear-gradient(135deg, #1F2937 0%, #31456A 100%);
            border-radius: 20px;
            padding: 48px 56px;
            position: relative;
            overflow: hidden;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 32px;
        }

        .cta-target {
            display: block;
        }

        .cta-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .cta-text p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }

        .cta-btn-block {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ===== podcast/tag list ===== */
        .muted-label {
            font-size: 13px;
            letter-spacing: 1.2px;
            color: var(--text-muted);
            text-transform: uppercase;
            font-weight: 600;
            display: block;
            margin-bottom: 14px;
        }

        .link-item {
            display: block;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-divider);
            text-decoration: none;
            color: var(--text-body);
            transition: var(--transition-fast);
        }

        .link-item:hover {
            color: var(--primary-a);
            padding-left: 6px;
        }

        .link-item span {
            display: block;
        }

        /* ===== Aside related ===== */
        .related-panel {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .related-mini-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .related-mini-thumb {
            flex: 0 0 72px;
            height: 72px;
            border-radius: 10px;
            overflow: hidden;
        }

        .related-mini-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-mini-info h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .related-mini-info span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(180deg, #1F2937 0%, #31456A 100%);
            color: #C4CDD9;
            padding: 64px 0 20px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 45px;
        }

        .footer-brand .brand-logo {
            margin-bottom: 20px;
        }

        .footer-brand .brand-text {
            color: #fff;
        }

        .footer-brand .brand-text em {
            color: rgba(255, 255, 255, 0.75);
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #A0AEBD;
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #C4CDD9;
            transition: var(--transition-fast);
            text-decoration: none;
            line-height: 1.6;
        }

        .footer-links a:hover {
            color: var(--primary-a);
            padding-left: 6px;
        }

        .footer-form {
            display: flex;
            gap: 8px;
            margin-top: 14px;
        }

        .footer-form input {
            padding: 10px 12px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            outline: 0;
            transition: var(--transition-fast);
            width: 0;
            flex: 1;
        }

        .footer-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-form input:focus {
            border-color: var(--primary-a);
            box-shadow: 0 0 0 3px rgba(33, 176, 168, 0.15);
        }

        .footer-form button {
            background: linear-gradient(135deg, var(--primary-a), var(--primary-b));
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 10px 16px;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition-fast);
            font-family: var(--font-cn);
            font-weight: 500;
            white-space: nowrap;
        }

        .footer-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(33, 176, 168, 0.4);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom span,
        .footer-bottom .footer-legal a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition-fast);
        }

        .footer-legal {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .footer-legal a:hover {
            color: #fff;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 10px 0;
        }

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
        }

        .breadcrumb a:hover {
            color: var(--primary-a);
        }

        .breadcrumb i {
            font-size: 10px;
            color: #CBD2DC;
        }

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 500;
        }

        /* ===== Two col hero card ===== */
        .featured-doc-card {
            background: #fff;
            border-radius: var(--radius-large);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            box-shadow: var(--shadow-md);
            transition: var(--transition-base);
        }

        .featured-doc-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .featured-doc-info {
            padding: 28px 30px;
        }

        .featured-doc-info .editor-tag {
            display: inline-block;
            font-size: 12px;
            color: #1a8a84;
            background: rgba(33, 176, 168, 0.08);
            border-radius: 20px;
            padding: 4px 12px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .featured-doc-info h4 {
            font-size: 21px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 12px;
        }

        .featured-doc-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .doc-list-simple {
            margin-top: 18px;
        }

        .doc-list-simple > div {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-divider);
            font-size: 14px;
            color: var(--text-body);
        }

        .doc-list-simple > div:last-child {
            border-bottom: none;
        }

        .featured-doc-thumb {
            position: relative;
            min-height: 100%;
        }

        .featured-doc-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .featured-doc-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(300deg, transparent 40%, rgba(49, 69, 106, 0.15) 100%);
        }

        .featured-doc-thumb a {
            position: absolute;
            inset: 0;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .play-link {
            width: 60px;
            height: 60px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-b);
            font-size: 20px;
            box-shadow: 0 8px 24px rgba(31, 41, 55, 0.2);
            transition: var(--transition-base);
        }

        .play-link:hover {
            background: linear-gradient(135deg, var(--primary-a), var(--primary-b));
            color: #fff;
            transform: scale(1.08);
        }

        /* ===== Model list ===== */
        .model-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 20px 26px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            transition: var(--transition-base);
        }

        .model-card:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .model-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .model-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(33, 176, 168, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-a);
            font-size: 18px;
            flex-shrink: 0;
        }

        .model-left strong {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            display: block;
            margin-bottom: 2px;
        }

        .model-left span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .model-arrow {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition-fast);
        }

        .model-card:hover .model-arrow {
            background: linear-gradient(135deg, var(--primary-a), var(--primary-b));
            color: #fff;
        }

        /* ===== Accordion panel for feature ===== */
        .note-panel {
            background: var(--bg-light);
            border-radius: 14px;
            padding: 18px 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            margin: 16px 0;
        }

        .note-panel i {
            color: var(--primary-a);
            font-size: 18px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .note-panel p,
        .note-panel small {
            display: block;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
        }

        /* ======= Responsive Media ======= */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .grid-cards {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .flow-item::after {
                display: none;
            }

            .data-numbers {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .data-block strong {
                font-size: 28px;
            }

            .hero-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .page-hero h1 {
                font-size: 36px;
            }

            .split-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .split-title {
                position: relative;
                top: auto;
            }

            .mega-panel {
                width: 560px;
            }

            .footer-grid {
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 50px 0;
            }

            .hero-inner {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .page-hero {
                padding: 52px 0 56px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .section-header h2 {
                font-size: 26px;
            }

            .grid-cards,
            .grid-two,
            .article-focus,
            .related-panel {
                grid-template-columns: 1fr;
            }

            .flow-steps {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .data-numbers {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .featured-doc-card {
                grid-template-columns: 1fr;
            }

            .featured-doc-thumb img {
                position: relative;
                height: 220px;
            }

            .solution-intro {
                grid-template-columns: 1fr;
            }

            .solution-stats-number {
                padding: 14px 16px;
            }

            .stats-single strong {
                font-size: 20px;
            }

            .cta-block {
                padding: 36px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .split-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .related-panel {
                grid-template-columns: 1fr;
            }

            /* mobile nav */
            .main-nav {
                display: none;
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: min(80vw, 340px);
                background: #fff;
                z-index: 1100;
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                align-items: stretch;
                justify-content: flex-start;
                overflow-y: auto;
                transition: transform 0.3s ease;
                transform: translateX(100%);
            }

            .main-nav.is-open {
                display: block;
                transform: translateX(0);
            }

            .nav-list {
                flex-direction: column;
                align-items: stretch;
                padding: 24px 20px;
                gap: 0;
                margin: 0;
            }

            .nav-item {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                border-bottom: 1px solid var(--border-divider);
            }

            .nav-link {
                padding: 14px 8px;
                font-size: 16px;
                color: var(--text-dark);
                border-radius: 0;
                justify-content: space-between;
                gap: 8px;
                width: 100%;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                color: var(--primary-a);
            }

            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                box-shadow: none;
                border-radius: 0;
                border: none;
                border-left: 3px solid var(--border-divider);
                padding: 12px 16px;
                box-shadow: none;
                opacity: 1;
                visibility: visible;
                transform: none;
                background: #FAFAFB;
                flex-direction: column;
                display: none;
                gap: 12px;
            }

            .nav-item.is-mobile-open .mega-panel,
            .nav-item:hover .mega-panel {
                display: flex;
                opacity: 1;
                visibility: visible;
                transform: none;
            }

            .mega-cover {
                display: none;
            }

            .mega-links a {
                padding: 6px 4px;
                font-size: 14px;
            }

            .hamburger {
                display: flex;
                margin-left: 8px;
            }

            .header-inner {
                height: 66px;
            }

            .brand-text {
                font-size: 18px;
            }

            .brand-sub {
                display: none;
            }

            /* mobile menu backdrop */
            .mobile-backdrop {
                position: fixed;
                inset: 0;
                background: rgba(31, 41, 55, 0.5);
                backdrop-filter: blur(2px);
                z-index: 1050;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }

            .data-numbers {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .data-block {
                padding: 22px 12px;
            }

            .data-block strong {
                font-size: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-legal {
                gap: 12px;
                justify-content: center;
                flex-wrap: wrap;
            }

            .cta-block {
                padding: 32px 20px;
                border-radius: 16px;
            }

            .cta-text h3 {
                font-size: 20px;
            }

            .visual-frame img {
                height: 250px;
            }

            .visual-float-card {
                left: 12px;
                bottom: -14px;
            }

            .brand-logo {
                gap: 8px;
            }

            .feature-card {
                padding: 24px 20px;
            }

            .related-mini-card {
                flex-direction: column;
                padding: 0;
                overflow: hidden;
            }

            .related-mini-thumb {
                width: 100%;
                flex: unset;
                max-height: 100px;
            }

            .related-mini-info {
                padding: 0 16px 16px;
                display: block;
            }

            .related-mini-thumb {
                border-radius: 0;
            }

            .page-hero h1 {
                font-size: 28px;
                line-height: 1.3;
            }

            .section-header {
                margin-bottom: 32px;
            }
        }