/* roulang page: index */
:root{
  --color-primary:#00E8A0;
  --color-primary-deep:#00B574;
  --color-accent:#FF7A1A;
  --color-ink:#0A1F1B;
  --color-ink-2:#12312A;
  --color-surface:#FFFFFF;
  --color-bg:#F3F7F5;
  --color-text:#15201C;
  --color-text-muted:#5B6B66;
  --border-radius-sm:8px;
  --border-radius-md:16px;
  --border-radius-lg:24px;
  --shadow-sm:0 2px 8px rgba(10,31,27,.06);
  --shadow-md:0 8px 24px rgba(10,31,27,.1);
  --shadow-lg:0 16px 40px rgba(10,31,27,.16);
  --font-family:"MiSans","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-family);background:var(--color-bg);color:var(--color-text);line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color .25s ease}
img{max-width:100%;display:block}
button,input{font-family:inherit;border:none;background:none;cursor:pointer}
i{line-height:1}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{position:relative;padding:84px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:clamp(28px,3.5vw,38px);font-weight:700;line-height:1.3;color:var(--color-text)}
.section-head p{font-size:16px;color:var(--color-text-muted);margin-top:12px;max-width:680px;margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:12px;font-size:16px;font-weight:600;line-height:1;transition:all .25s ease;border:none;cursor:pointer;white-space:nowrap}
.btn svg,.btn i{font-size:16px}
.btn-accent{background:var(--color-accent);color:#fff}
.btn-accent:hover{box-shadow:0 0 20px rgba(255,122,26,.45);filter:brightness(1.05)}
.btn-primary{background:var(--color-primary);color:var(--color-ink)}
.btn-primary:hover{box-shadow:0 0 16px rgba(0,232,160,.35)}
.btn-outline{border:1.5px solid rgba(255,255,255,.75);color:#fff;background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.1)}
.btn-group{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:500;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.9)}
.tag i{font-size:12px}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:64px;background:rgba(10,31,27,.92);border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:background .3s ease,border-color .3s ease,box-shadow .3s ease}
.site-header.scrolled{background:rgba(255,255,255,.92);border-bottom-color:rgba(0,0,0,.06);box-shadow:0 2px 16px rgba(10,31,27,.08)}
.header-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-deep));display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.brand-mark svg{width:22px;height:22px;stroke:#fff}
.brand-text{font-size:19px;font-weight:700;color:#fff;letter-spacing:.01em;line-height:1.2;transition:color .3s}
.brand-text small{display:block;font-size:11px;font-weight:500;color:rgba(255,255,255,.6);letter-spacing:.08em}
.site-header.scrolled .brand-text{color:var(--color-text)}
.site-header.scrolled .brand-text small{color:var(--color-text-muted)}
.site-nav{display:flex;align-items:center;gap:8px}
.nav-link{display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:10px;font-size:15px;font-weight:500;color:rgba(255,255,255,.82);transition:background .2s,color .2s}
.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-link.active{background:rgba(0,232,160,.18);color:var(--color-primary);font-weight:600}
.site-header.scrolled .nav-link{color:var(--color-text)}
.site-header.scrolled .nav-link:hover{background:rgba(10,31,27,.05);color:var(--color-ink)}
.site-header.scrolled .nav-link.active{background:rgba(0,232,160,.15);color:var(--color-primary-deep)}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.badge-official{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--color-primary);color:var(--color-ink);font-size:12px;font-weight:700;letter-spacing:.03em}
.badge-official::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--color-ink)}
.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:10px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;font-size:20px;color:#fff;align-items:center;justify-content:center;transition:background .2s}
.site-header.scrolled .nav-toggle{color:var(--color-text)}

/* Hero */
.hero{position:relative;background:var(--color-ink);color:#fff;padding:150px 0 100px;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') no-repeat center/cover;opacity:.22}
.hero::after{content:'';position:absolute;bottom:-40px;right:-80px;width:480px;height:480px;background:radial-gradient(circle,rgba(0,232,160,.25),transparent 65%);pointer-events:none}
.hero .container{position:relative;z-index:2;display:flex;align-items:center;gap:60px}
.hero-left{flex:1;max-width:620px}
.hero-badge{margin-bottom:24px}
.hero h1{font-size:clamp(36px,5vw,52px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.hero h1 .highlight{color:var(--color-primary);position:relative}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);margin-top:20px;max-width:520px}
.hero-tags{display:flex;gap:10px;margin-top:28px;flex-wrap:wrap}
.hero-buttons{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero-meta{margin-top:18px;font-size:13px;color:rgba(255,255,255,.5);display:flex;gap:16px;align-items:center}
.hero-visual{flex:0 0 380px;display:flex;align-items:center;justify-content:center;position:relative}
.phone-frame{width:310px;height:560px;border-radius:36px;background:linear-gradient(160deg,#1E3B33,#0D2821);padding:12px;position:relative;box-shadow:0 24px 64px rgba(0,0,0,.4),0 0 0 1px rgba(255,255,255,.08)}
.phone-frame::after{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:120px;height:26px;background:var(--color-ink);border-radius:0 0 14px 14px;z-index:3}
.phone-screen{width:100%;height:100%;border-radius:26px;overflow:hidden;background:#0C241E}
.phone-screen img{width:100%;height:100%;object-fit:cover}
.phone-glow{position:absolute;top:40px;right:0;width:220px;height:420px;background:linear-gradient(180deg,rgba(0,232,160,.18),transparent);border-radius:50%;filter:blur(60px);z-index:-1}

/* Trust Bar */
.trust-bar{background:var(--color-ink-2);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);padding:36px 0}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.trust-item .num{font-size:34px;font-weight:700;color:var(--color-primary);line-height:1.2}
.trust-item .label{font-size:13px;color:rgba(255,255,255,.55);margin-top:6px}

/* Carousel */
.carousel-section{background:var(--color-surface);padding:84px 0 90px;overflow:hidden}
.carousel-shell{position:relative;max-width:1060px;margin:0 auto}
.carousel-viewport{overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:30px 0 42px;cursor:grab}
.carousel-viewport::-webkit-scrollbar{display:none}
.carousel-track{display:flex;gap:24px;padding:0 8px}
.carousel-item{scroll-snap-align:center;flex:0 0 350px;background:var(--color-surface);border:1px solid rgba(0,0,0,.04);border-radius:24px;box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .4s ease,opacity .4s ease,box-shadow .4s ease}
.carousel-item.active{transform:scale(1);opacity:1;box-shadow:var(--shadow-lg)}
.carousel-item:not(.active){transform:scale(.92);opacity:.6}
.carousel-media{aspect-ratio:16/10;overflow:hidden}
.carousel-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.carousel-item:hover .carousel-media img{transform:scale(1.03)}
.carousel-caption{padding:20px 22px 24px}
.carousel-caption h3{font-size:19px;font-weight:600;color:var(--color-text);margin-bottom:6px}
.carousel-caption p{font-size:14px;color:var(--color-text-muted);line-height:1.6}
.carousel-arrow{position:absolute;top:43%;width:44px;height:44px;border-radius:50%;background:#fff;color:var(--color-ink);font-size:17px;box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;z-index:5;transition:all .2s}
.carousel-arrow:hover{background:var(--color-primary);color:var(--color-ink)}
.carousel-arrow.prev{left:0}
.carousel-arrow.next{right:0}
.carousel-dots{display:flex;justify-content:center;gap:8px;margin-top:6px}
.carousel-dots button{width:8px;height:8px;border-radius:50%;background:#D4DCD9;transition:all .3s}
.carousel-dots button.active{width:26px;border-radius:4px;background:var(--color-primary)}

/* Features */
.features-section{background:var(--color-bg)}
.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{background:var(--color-surface);border-radius:var(--border-radius-md);border:1px solid rgba(0,0,0,.04);box-shadow:var(--shadow-sm);padding:32px 30px;display:flex;gap:20px;transition:all .25s ease}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-icon{width:56px;height:56px;border-radius:12px;background:rgba(0,232,160,.1);color:var(--color-ink);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0;transition:background .25s}
.feature-card:hover .feature-icon{background:rgba(0,232,160,.18)}
.feature-body h3{font-size:20px;font-weight:600;color:var(--color-text);margin-bottom:8px}
.feature-body p{font-size:15px;color:var(--color-text-muted);line-height:1.7}

/* Requirements */
.requirements-section{background:var(--color-ink);color:#fff;position:relative;overflow:hidden}
.requirements-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') no-repeat center/cover;opacity:.12}
.requirements-section .container{position:relative;z-index:2}
.req-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:48px}
.req-col{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--border-radius-lg);padding:36px}
.req-col h3{font-size:22px;font-weight:700;margin-bottom:28px;display:flex;align-items:center;gap:12px}
.req-col h3 i{color:var(--color-primary)}
.req-list{list-style:none}
.req-list li{display:flex;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.req-list li:last-child{border-bottom:none}
.req-label{font-size:13px;color:rgba(255,255,255,.55);letter-spacing:.02em}
.req-value{font-size:16px;font-weight:600;color:rgba(255,255,255,.95)}
.req-note{margin-top:24px;font-size:12px;color:rgba(255,255,255,.4);text-align:center}

/* Reviews */
.reviews-section{background:var(--color-surface)}
.reviews-wrap{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start}
.score-summary{text-align:center;background:var(--color-bg);border-radius:var(--border-radius-lg);padding:40px 24px;position:sticky;top:90px}
.score-num{font-size:48px;font-weight:700;color:var(--color-text);line-height:1}
.score-stars{color:#FFC52F;font-size:18px;margin:12px 0 4px;letter-spacing:2px}
.score-total{font-size:14px;color:var(--color-text-muted)}
.score-label{font-size:14px;color:var(--color-text-muted);margin-top:16px;line-height:1.5}
.reviews-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:var(--color-surface);border:1px solid rgba(0,0,0,.04);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);padding:24px;position:relative;overflow:hidden;transition:all .25s}
.review-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.review-card::before{content:'”';position:absolute;top:-14px;left:10px;font-size:120px;font-family:Georgia,serif;color:rgba(0,232,160,.12);line-height:1}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;position:relative;z-index:1}
.avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:#fff;flex-shrink:0}
.av-1{background:#00B574}.av-2{background:#FF7A1A}.av-3{background:#4A90D9}.av-4{background:#B78BFF}.av-5{background:#2BC0BE}.av-6{background:#E0562C}
.review-user strong{display:block;font-size:15px;color:var(--color-text)}
.review-user span{font-size:12px;color:var(--color-text-muted)}
.review-stars{margin-left:auto;color:#FFC52F;font-size:13px;letter-spacing:1px}
.review-text{font-size:14px;color:var(--color-text);line-height:1.72}

/* News */
.news-section{background:var(--color-bg)}
.news-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px}
.news-header h2{font-size:clamp(28px,3.5vw,38px);font-weight:700}
.news-header a{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--color-primary-deep);padding:8px 16px;border-radius:10px;border:1px solid rgba(0,232,160,.3);transition:all .2s}
.news-header a:hover{background:rgba(0,232,160,.08)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--color-surface);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid rgba(0,0,0,.04);transition:all .25s ease;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--color-bg)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px 22px;display:flex;flex-direction:column;flex:1}
.news-cat{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--color-primary-deep);background:rgba(0,232,160,.1);padding:4px 10px;border-radius:6px;width:fit-content;margin-bottom:10px}
.news-body h3{font-size:18px;font-weight:600;color:var(--color-text);line-height:1.45;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:52px}
.news-body p{font-size:14px;color:var(--color-text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;flex:1}
.news-meta{font-size:13px;color:var(--color-text-muted);display:flex;align-items:center;gap:16px}
.news-empty{border:2px dashed #D4DCD9;border-radius:var(--border-radius-lg);padding:70px 30px;text-align:center;color:var(--color-text-muted);font-size:15px;background:var(--color-surface)}
.news-empty i{font-size:32px;color:#D4DCD9;margin-bottom:12px;display:block}

/* FAQ */
.faq-section{background:var(--color-surface)}
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:var(--color-surface);border:1px solid rgba(0,0,0,.05);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);margin-bottom:14px;position:relative;overflow:hidden;transition:box-shadow .25s}
.faq-item.open{box-shadow:var(--shadow-md);border-left:3px solid var(--color-primary)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--color-text)}
.faq-q .ic{margin-left:12px;color:var(--color-primary-deep);flex-shrink:0;font-size:18px;transition:transform .3s}
.faq-item.open .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}

/* CTA */
.cta-section{background:var(--color-ink);position:relative;overflow:hidden;padding:76px 0}
.cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') no-repeat center/cover;opacity:.14}
.cta-section::after{content:'';position:absolute;top:-60px;right:-80px;width:400px;height:400px;background:radial-gradient(circle,rgba(0,232,160,.22),transparent 65%)}
.cta-inner{position:relative;z-index:2;text-align:center}
.cta-inner h2{color:#fff;font-size:clamp(26px,3vw,36px);font-weight:700;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.6);font-size:15px;margin-bottom:28px}
.cta-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:18px;font-size:12px;color:rgba(255,255,255,.4)}

/* Footer */
.site-footer{background:var(--color-ink);color:rgba(255,255,255,.65);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-text{color:#fff;font-size:20px}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:14px;color:rgba(255,255,255,.5);max-width:280px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.55);line-height:1.5;transition:color .2s}
.footer-links a:hover{color:var(--color-primary)}
.footer-download{display:flex;flex-direction:column;gap:10px}
.footer-download a{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.55);padding:8px 0;transition:color .2s}
.footer-download a:hover{color:var(--color-primary)}
.footer-download a i{width:20px;text-align:center;color:var(--color-primary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;margin-top:8px}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,.35)}
.footer-bottom-inner a{color:rgba(255,255,255,.35)}
.footer-bottom-inner a:hover{color:var(--color-primary)}

/* Back to top */
.back-top{position:fixed;bottom:28px;right:28px;width:48px;height:48px;border-radius:14px;background:var(--color-ink);color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);z-index:99;opacity:0;visibility:hidden;transform:translateY(16px);transition:all .3s}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}

/* Responsive */
@media (max-width:1023px){
  .hero .container{gap:32px;flex-direction:column}
  .hero-visual{flex-basis:auto;margin-top:10px}
  .phone-frame{width:260px;height:470px}
  .reviews-wrap{grid-template-columns:1fr;gap:32px}
  .score-summary{position:static;padding:24px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .carousel-item{flex-basis:280px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .nav-toggle{display:flex}
  .site-nav{position:fixed;top:64px;right:-100%;width:290px;height:calc(100vh - 64px);background:var(--color-surface);flex-direction:column;align-items:stretch;padding:24px 16px;box-shadow:-12px 0 32px rgba(0,0,0,.15);transition:right .3s ease;gap:4px}
  .site-nav.open{right:0}
  .nav-link{height:46px;padding:0 16px;color:var(--color-text);border-radius:12px;font-size:16px}
  .nav-link:hover{background:var(--color-bg);color:var(--color-ink)}
  .nav-link.active{color:var(--color-primary-deep)}
  .badge-official{display:none}
  .hero{padding:120px 0 64px}
  .hero h1{font-size:34px}
  .hero-sub{font-size:15px}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .features-grid{grid-template-columns:1fr}
  .req-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .btn-group{width:100%}
  .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .back-top{bottom:20px;right:20px;width:42px;height:42px}
  .hero-meta{flex-direction:column;gap:8px;align-items:flex-start}
  .carousel-arrow{display:none}
}

/* roulang page: article */
:root {
  --color-primary: #00E8A0;
  --color-primary-deep: #00B574;
  --color-accent: #FF7A1A;
  --color-ink: #0A1F1B;
  --color-ink-2: #12312A;
  --color-surface: #FFFFFF;
  --color-bg: #F3F7F5;
  --color-text: #15201C;
  --color-text-muted: #5B6B66;
  --border-color: rgba(10, 31, 27, 0.08);
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(10,31,27,.06);
  --shadow-md: 0 8px 24px rgba(10,31,27,.1);
  --shadow-lg: 0 16px 40px rgba(10,31,27,.16);
  --font-family: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --header-height: 64px;
  --space-section: 88px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul,
ol {
  list-style: none;
}
input,
textarea {
  font-family: inherit;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(10, 31, 27, 0.06);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 20px rgba(10, 31, 27, 0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, #00E8A0 0%, #00B574 100%);
  box-shadow: 0 4px 12px rgba(0, 232, 160, 0.35);
}
.brand-mark svg {
  width: 22px;
  height: 22px;
  stroke: #0A1F1B;
  stroke-width: 2.4;
}
.brand-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.2;
  display: flex;
  flex-direction: column;
}
.brand-text small {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  padding: 6px 2px;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--color-primary);
  transition: width 0.25s ease;
}
.nav-link:hover {
  color: var(--color-primary-deep);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-link.active {
  color: var(--color-primary-deep);
  font-weight: 600;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.badge-official {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 12px;
  border-radius: 100px;
  background: linear-gradient(135deg, #00E8A0, #00B574);
  color: #0A1F1B;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 12px rgba(0, 232, 160, 0.25);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  transition: all 0.25s ease;
  border: none;
}
.btn-sm {
  height: 36px;
  padding: 0 16px;
  font-size: 14px;
  border-radius: 10px;
}
.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 6px 16px rgba(255, 122, 26, 0.3);
}
.btn-accent:hover {
  box-shadow: 0 0 20px rgba(255, 122, 26, 0.45);
  filter: brightness(1.05);
  transform: translateY(-1px);
}
.btn-accent:active {
  transform: scale(0.97);
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-ink);
  box-shadow: 0 6px 16px rgba(0, 232, 160, 0.25);
}
.btn-primary:hover {
  box-shadow: 0 0 16px rgba(0, 232, 160, 0.35);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: scale(0.97);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff;
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  color: var(--color-ink);
  font-size: 18px;
  transition: background 0.2s ease;
}
.nav-toggle:hover {
  background: rgba(0, 232, 160, 0.15);
}
main {
  min-height: 60vh;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px 0 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.breadcrumb i {
  font-size: 11px;
  color: #B0BFBA;
}
.breadcrumb a {
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--color-primary-deep);
}
.breadcrumb .current {
  color: var(--color-text);
  font-weight: 500;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 340px;
}
.article-shell {
  padding: 16px 0 0;
}
.article-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(10, 31, 27, 0.04);
  padding: 48px 56px;
  max-width: 880px;
  margin: 0 auto;
}
.article-header {
  text-align: center;
  margin-bottom: 32px;
}
.article-header h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-ink);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.meta-item i {
  color: var(--color-primary-deep);
  font-size: 14px;
}
.article-summary {
  max-width: 680px;
  margin: 0 auto;
  background: var(--color-bg);
  border-radius: var(--border-radius-md);
  border-left: 3px solid var(--color-primary);
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-muted);
  text-align: left;
}
.article-entry {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  word-wrap: break-word;
}
.article-entry > * {
  margin-bottom: 20px;
}
.article-entry h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-ink);
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}
.article-entry h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-ink);
  margin-top: 28px;
  margin-bottom: 14px;
}
.article-entry h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
  margin-top: 20px;
  margin-bottom: 10px;
}
.article-entry p {
  margin-bottom: 20px;
}
.article-entry a {
  color: var(--color-primary-deep);
  border-bottom: 1px solid rgba(0, 181, 116, 0.3);
  transition: border-color 0.2s ease;
}
.article-entry a:hover {
  border-color: var(--color-primary-deep);
}
.article-entry img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
  object-fit: cover;
  margin: 28px 0;
  box-shadow: var(--shadow-sm);
}
.article-entry blockquote {
  background: var(--color-bg);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--color-text-muted);
  font-size: 15px;
}
.article-entry blockquote p {
  margin-bottom: 0;
}
.article-entry ul,
.article-entry ol {
  padding-left: 24px;
  margin-bottom: 20px;
}
.article-entry ul li {
  list-style: disc;
  margin-bottom: 8px;
}
.article-entry ol li {
  list-style: decimal;
  margin-bottom: 8px;
}
.article-entry code {
  background: var(--color-ink-2);
  color: #A7F3DC;
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 14px;
  font-family: "SF Mono", "JetBrains Mono", Consolas, monospace;
}
.article-entry pre {
  background: var(--color-ink-2);
  color: #D1FAE5;
  border-radius: var(--border-radius-md);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 24px 0;
  line-height: 1.6;
  font-size: 14px;
}
.article-entry pre code {
  background: none;
  color: inherit;
  padding: 0;
}
.article-entry hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 32px 0;
}
.article-pager {
  max-width: 880px;
  margin: 32px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pager-link {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-surface);
  border: 1px solid rgba(10, 31, 27, 0.06);
  border-radius: var(--border-radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}
.pager-link:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 232, 160, 0.4);
}
.pager-link i {
  font-size: 18px;
  color: var(--color-primary-deep);
  flex-shrink: 0;
}
.pager-link span {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.pager-link small {
  font-size: 12px;
  color: var(--color-text-muted);
}
.pager-link strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pager-next {
  justify-content: flex-end;
  text-align: right;
}
.pager-next span {
  align-items: flex-end;
}
.back-category {
  max-width: 880px;
  margin: 20px auto 0;
  text-align: center;
}
.back-category a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 8px 16px;
  border-radius: 100px;
  transition: all 0.2s ease;
}
.back-category a:hover {
  color: var(--color-primary-deep);
  background: rgba(0, 232, 160, 0.1);
}
.related-section {
  max-width: 1200px;
  margin: 72px auto 0;
  padding-top: 48px;
  border-top: 1px solid rgba(10, 31, 27, 0.06);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--color-ink);
}
.section-tag {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 14px;
  border-radius: 100px;
  background: rgba(0, 232, 160, 0.12);
  color: var(--color-primary-deep);
  font-size: 13px;
  font-weight: 600;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: block;
  background: var(--color-surface);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(10, 31, 27, 0.04);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.3s ease;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.related-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #E8EFEC;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.04);
}
.related-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10, 31, 27, 0.25));
}
.related-info {
  padding: 20px 22px 22px;
}
.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-ink);
  margin: 10px 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 50px;
  transition: color 0.2s ease;
}
.related-card:hover .related-info h3 {
  color: var(--color-primary-deep);
}
.related-info p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.related-info .time {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: #9AA8A3;
}
.tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}
.tag-mint {
  background: rgba(0, 232, 160, 0.1);
  color: var(--color-primary-deep);
}
.tag-orange {
  background: rgba(255, 122, 26, 0.1);
  color: var(--color-accent);
}
.article-missing {
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
}
.missing-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(0, 232, 160, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--color-primary-deep);
  margin-bottom: 24px;
}
.article-missing h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}
.article-missing p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}
.site-footer {
  background: var(--color-ink);
  color: #8AA39A;
  margin-top: 96px;
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .brand {
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: #8AA39A;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: #8AA39A;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--color-primary);
}
.footer-download {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-download a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #8AA39A;
  transition: color 0.2s ease;
}
.footer-download a i {
  font-size: 16px;
  color: var(--color-primary);
  width: 20px;
}
.footer-download a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: #5B6B66;
}
.footer-bottom-inner span:last-child {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-bottom-inner span:last-child::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 8px rgba(0, 232, 160, 0.6);
}
.article-pagination-divider {
  max-width: 1200px;
  margin: 56px auto 0;
  border-top: 1px solid rgba(10, 31, 27, 0.06);
}
@media (max-width: 1024px) {
  .site-nav {
    gap: 20px;
  }
  .header-actions .badge-official {
    display: none;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  :root {
    --space-section: 56px;
  }
  .container {
    padding: 0 16px;
  }
  .brand-text {
    font-size: 18px;
  }
  .brand-text small {
    font-size: 10px;
  }
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 16px 24px 24px;
    box-shadow: 0 16px 40px rgba(10, 31, 27, 0.14);
    transform: translateY(-110%);
    transition: transform 0.32s ease;
    border-radius: 0 0 20px 20px;
  }
  .site-nav.open {
    transform: translateY(0);
  }
  .nav-link {
    width: 100%;
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(10, 31, 27, 0.05);
  }
  .nav-link::after {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-actions .btn-sm {
    padding: 0 12px;
    font-size: 13px;
  }
  .badge-official {
    display: none;
  }
  .article-card {
    padding: 28px 20px;
    border-radius: 20px;
  }
  .article-header h1 {
    font-size: 26px;
    line-height: 1.35;
  }
  .article-meta {
    gap: 14px;
  }
  .article-pager {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .pager-next {
    justify-content: flex-start;
    text-align: left;
  }
  .pager-next span {
    align-items: flex-start;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .related-info {
    padding: 16px 18px 18px;
  }
  .related-info h3 {
    font-size: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
}
@media (max-width: 520px) {
  .article-summary {
    font-size: 13px;
    padding: 14px 16px;
  }
  .article-entry {
    font-size: 15px;
  }
  .article-entry h2 {
    font-size: 21px;
  }
  .article-entry h3 {
    font-size: 18px;
  }
  .meta-item {
    font-size: 12px;
  }
  .btn-accent {
    font-size: 14px;
    padding: 0 16px;
  }
  .breadcrumb .current {
    max-width: 220px;
  }
}

/* roulang page: category1 */
:root{
  --color-primary:#00E8A0;
  --color-primary-deep:#00B574;
  --color-accent:#FF7A1A;
  --color-ink:#0A1F1B;
  --color-ink-2:#12312A;
  --color-surface:#FFFFFF;
  --color-bg:#F3F7F5;
  --color-text:#15201C;
  --color-text-muted:#5B6B66;
  --border-radius-sm:8px;
  --border-radius-md:16px;
  --border-radius-lg:24px;
  --shadow-sm:0 2px 8px rgba(10,31,27,.06);
  --shadow-md:0 8px 24px rgba(10,31,27,.1);
  --shadow-lg:0 16px 40px rgba(10,31,27,.16);
  --font-family:"MiSans","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--font-family);background:var(--color-bg);color:var(--color-text);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-light{background:var(--color-bg)}
.section-white{background:var(--color-surface)}
.section-head{margin-bottom:42px;text-align:center;max-width:760px;margin-left:auto;margin-right:auto}
.section-kicker{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--color-primary-deep);text-transform:uppercase;margin-bottom:8px}
.section-title{font-size:clamp(28px,3.5vw,38px);line-height:1.3;font-weight:700;margin-bottom:12px;color:var(--color-text)}
.section-sub{color:var(--color-text-muted);font-size:16px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;height:64px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(10,31,27,.06);transition:box-shadow .25s ease}
.site-header.scrolled{box-shadow:var(--shadow-sm)}
.header-inner{height:64px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-deep));display:grid;place-items:center;color:var(--color-ink);box-shadow:0 5px 14px rgba(0,232,160,.32)}
.brand-mark svg{width:20px;height:20px;stroke:currentColor}
.brand-text{font-size:19px;font-weight:700;line-height:1.15;color:var(--color-text);display:flex;flex-direction:column}
.brand-text small{font-size:11px;color:var(--color-text-muted);font-weight:500;margin-top:1px;letter-spacing:.02em}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{font-size:15px;font-weight:500;color:var(--color-text);padding:8px 16px;border-radius:999px;transition:background .2s,color .2s;white-space:nowrap}
.nav-link:hover{color:var(--color-primary-deep);background:rgba(0,232,160,.08)}
.nav-link:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}
.nav-link.active{background:var(--color-ink);color:#fff}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.badge-official{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:#fff;background:var(--color-primary-deep);padding:4px 12px;border-radius:999px;white-space:nowrap}
.badge-official::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;box-shadow:0 0 6px rgba(255,255,255,.9)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid rgba(10,31,27,.12);background:#fff;color:var(--color-ink);font-size:17px;cursor:pointer;align-items:center;justify-content:center;transition:border-color .2s,background .2s}
.nav-toggle:hover{border-color:var(--color-primary-deep);background:rgba(0,232,160,.06)}
.nav-toggle:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:12px;font-size:16px;font-weight:600;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s,filter .2s,background .2s;white-space:nowrap}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-accent{background:var(--color-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,26,.3)}
.btn-accent:hover{box-shadow:0 0 20px rgba(255,122,26,.45);filter:brightness(1.05)}
.btn-accent:active{transform:scale(.97)}
.btn-primary{background:var(--color-primary);color:var(--color-ink);box-shadow:0 6px 16px rgba(0,232,160,.28)}
.btn-primary:hover{box-shadow:0 0 16px rgba(0,232,160,.35)}
.btn-primary:active{transform:scale(.97)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.75)}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-ghost:active{transform:scale(.97)}
.btn-outline{background:transparent;color:var(--color-ink);border:1.5px solid rgba(10,31,27,.25)}
.btn-outline:hover{background:rgba(10,31,27,.04)}
.btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px}

/* Category Hero */
.category-hero{position:relative;background:linear-gradient(120deg,rgba(10,31,27,.95) 20%,rgba(18,49,42,.82) 70%),url("/assets/images/backpic/back-1.png") center/cover no-repeat;color:#fff;padding:72px 0 80px;overflow:hidden}
.category-hero::after{content:"";position:absolute;top:0;right:-50px;width:280px;height:100%;background:linear-gradient(180deg,transparent 10%,var(--color-primary) 100%);clip-path:polygon(42% 0,100% 0,100% 100%,0 100%);opacity:.16;pointer-events:none}
.category-hero .container{position:relative;z-index:2}
.cat-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--color-primary);background:rgba(0,232,160,.1);border:1px solid rgba(0,232,160,.3);padding:5px 14px;border-radius:999px;margin-bottom:20px}
.category-hero h1{font-size:clamp(32px,4.6vw,50px);line-height:1.25;font-weight:700;margin-bottom:16px;max-width:820px}
.category-hero h1 .hl{color:var(--color-primary)}
.category-hero .lead{font-size:17px;line-height:1.8;color:rgba(238,248,244,.86);max-width:720px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-actions .btn{min-width:148px}

/* Content Split */
.content-split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,3fr);gap:36px;align-items:start}
.content-cards{display:grid;gap:28px}
.content-card{background:var(--color-surface);border:1px solid rgba(10,31,27,.05);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .25s,box-shadow .25s}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--color-bg)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease,filter .3s ease}
.content-card:hover .card-media img{transform:scale(1.03);filter:brightness(1.02)}
.card-body{padding:28px}
.card-title{font-size:22px;font-weight:600;margin-bottom:10px;color:var(--color-text)}
.card-desc{font-size:15px;color:var(--color-text-muted);line-height:1.75;margin-bottom:16px}
.card-link{display:inline-flex;align-items:center;gap:6px;color:var(--color-primary-deep);font-size:15px;font-weight:600;transition:color .2s}
.card-link i{transition:transform .2s}
.card-link:hover{color:var(--color-primary-deep)}
.card-link:hover i{transform:translateX(4px)}
.card-link:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px;border-radius:4px}

/* Download Widget */
.download-widget{position:sticky;top:88px;background:var(--color-ink);color:#fff;border-radius:var(--border-radius-md);padding:28px;box-shadow:var(--shadow-lg);overflow:hidden}
.download-widget::before{content:"";position:absolute;top:-80px;right:-80px;width:180px;height:180px;background:radial-gradient(circle,rgba(0,232,160,.25),transparent 70%);pointer-events:none}
.widget-head{display:flex;align-items:center;gap:14px;margin-bottom:22px;position:relative;z-index:1}
.widget-logo{width:50px;height:50px;border-radius:14px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-deep));color:var(--color-ink);display:grid;place-items:center;font-size:22px;flex-shrink:0;box-shadow:0 6px 16px rgba(0,232,160,.3)}
.widget-title{font-size:18px;font-weight:700;line-height:1.3}
.widget-sub{font-size:12px;color:rgba(255,255,255,.6)}
.download-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;position:relative;z-index:1}
.download-list .btn{width:100%}
.qr-wrap{text-align:center;position:relative;z-index:1}
.qr-title{font-size:12px;color:rgba(255,255,255,.6);margin-bottom:10px;letter-spacing:.04em}
.qr-box{width:180px;height:180px;border-radius:14px;background:#fff;padding:8px;margin:0 auto;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.qr-box img{width:100%;height:100%;object-fit:cover;border-radius:10px}
.version-note{font-size:12px;color:rgba(255,255,255,.55);text-align:center;margin-top:12px;line-height:1.6}

/* Feature Grid */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--color-surface);border:1px solid rgba(10,31,27,.05);border-radius:var(--border-radius-md);padding:28px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-card .icon{width:56px;height:56px;border-radius:16px;background:rgba(0,232,160,.12);color:var(--color-primary-deep);display:grid;place-items:center;font-size:22px;margin-bottom:18px;transition:background .25s}
.feature-card:hover .icon{background:rgba(0,232,160,.18)}
.feature-card h3{font-size:18px;font-weight:600;margin-bottom:8px;color:var(--color-text)}
.feature-card p{font-size:14px;color:var(--color-text-muted);line-height:1.7}

/* Steps */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{background:var(--color-surface);border:1px solid rgba(10,31,27,.05);border-radius:var(--border-radius-md);padding:28px;box-shadow:var(--shadow-sm);position:relative;transition:transform .25s,box-shadow .25s}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step-num{width:42px;height:42px;border-radius:12px;background:var(--color-primary);color:var(--color-ink);font-weight:700;font-size:17px;display:grid;place-items:center;margin-bottom:16px;box-shadow:0 6px 14px rgba(0,232,160,.26)}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:10px;color:var(--color-text)}
.step-card p{font-size:14px;color:var(--color-text-muted);line-height:1.7}

/* Scenarios */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{background:var(--color-surface);border:1px solid rgba(10,31,27,.05);border-radius:var(--border-radius-md);padding:30px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.scenario-card .scenario-icon{width:56px;height:56px;border-radius:50%;background:rgba(0,232,160,.12);color:var(--color-primary-deep);display:grid;place-items:center;font-size:22px;margin-bottom:18px}
.scenario-card h3{font-size:19px;font-weight:600;margin-bottom:10px;color:var(--color-text)}
.scenario-card p{font-size:14px;color:var(--color-text-muted);line-height:1.75}

/* FAQ */
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--color-surface);border:1px solid rgba(10,31,27,.05);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow .25s,border-color .25s}
.faq-item.open{border-left:3px solid var(--color-primary);box-shadow:var(--shadow-md)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:18px 22px;background:none;border:0;font-size:16px;font-weight:600;color:var(--color-text);text-align:left;cursor:pointer;transition:background .2s}
.faq-q:hover{background:rgba(0,232,160,.04)}
.faq-q:focus-visible{outline:2px solid var(--color-primary);outline-offset:-2px}
.faq-icon{width:30px;height:30px;border-radius:9px;background:rgba(0,232,160,.12);color:var(--color-primary-deep);display:grid;place-items:center;font-size:14px;flex-shrink:0;transition:transform .3s}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{display:none;padding:0 22px 20px;color:var(--color-text-muted);font-size:14px;line-height:1.8}
.faq-item.open .faq-a{display:block}

/* Jump Band */
.jump-band{background:var(--color-ink);padding:80px 0;position:relative;overflow:hidden}
.jump-band::before{content:"";position:absolute;left:-60px;top:-60px;width:280px;height:280px;background:radial-gradient(circle,rgba(0,232,160,.18),transparent 70%);border-radius:50%;pointer-events:none}
.jump-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;position:relative;z-index:1}
.jump-card{background:linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.1);border-radius:var(--border-radius-md);padding:34px;min-height:220px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;transition:border-color .25s,background .25s}
.jump-card:hover{border-color:rgba(0,232,160,.45);background:linear-gradient(135deg,rgba(255,255,255,.1),rgba(255,255,255,.04))}
.jump-card::after{content:"";position:absolute;right:-40px;bottom:-60px;width:160px;height:160px;background:var(--color-primary);opacity:.1;clip-path:polygon(0 0,100% 0,0 100%);border-radius:12px}
.jump-tag{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--color-primary);text-transform:uppercase;margin-bottom:10px}
.jump-card h3{font-size:22px;font-weight:600;color:#fff;margin-bottom:8px}
.jump-card p{font-size:14px;color:rgba(255,255,255,.7);margin-bottom:22px;line-height:1.7}
.jump-card .btn{align-self:flex-start}

/* Footer */
.site-footer{background:var(--color-ink);color:#8AA39A;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px}
.footer-brand p{margin-top:16px;color:rgba(138,163,154,.75);line-height:1.8;font-size:14px;max-width:300px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#8AA39A;transition:color .2s}
.footer-links a:hover{color:var(--color-primary)}
.footer-links a:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px;border-radius:4px}
.footer-download{display:flex;flex-direction:column;gap:10px}
.footer-download a{color:#8AA39A;display:inline-flex;align-items:center;gap:8px;transition:color .2s}
.footer-download a:hover{color:var(--color-primary)}
.footer-download a:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px;border-radius:4px}
.footer-bottom{background:rgba(0,0,0,.2);border-top:1px solid rgba(255,255,255,.06)}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 0;font-size:13px;flex-wrap:wrap}
.footer-bottom-inner span{color:rgba(138,163,154,.7)}

/* Responsive */
@media (max-width:1023px){
  .site-nav{position:fixed;top:64px;left:0;right:0;background:var(--color-surface);flex-direction:column;align-items:stretch;gap:4px;padding:16px 24px 20px;box-shadow:var(--shadow-md);border-bottom:1px solid rgba(10,31,27,.08);display:none;margin-left:0;max-height:calc(100vh - 64px);overflow-y:auto}
  .site-nav.open{display:flex}
  .nav-link{padding:12px 16px;border-radius:12px;font-size:16px}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .content-split{grid-template-columns:1fr}
  .download-widget{position:static;margin-top:8px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;padding:48px 0 36px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .category-hero{padding:52px 0 56px}
  .category-hero .lead{font-size:15px}
  .hero-actions{width:100%}
  .hero-actions .btn{width:100%;min-width:0}
  .download-list .btn{width:100%}
  .feature-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .scenario-grid{grid-template-columns:1fr}
  .jump-grid{grid-template-columns:1fr}
  .jump-card{min-height:auto}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
  .footer-bottom-inner{flex-direction:column;text-align:center}
  .badge-official{display:none}
}
@media (max-width:520px){
  .header-inner{gap:12px}
  .brand-text{font-size:17px}
  .brand-text small{font-size:10px}
  .header-actions .btn-sm{width:38px;padding:0;font-size:15px}
  .header-actions .btn-sm span{display:none}
  .content-card .card-body{padding:22px}
  .download-widget{padding:22px}
  .qr-box{width:160px;height:160px}
}

/* roulang page: category2 */
:root {
  --color-primary: #00E8A0;
  --color-primary-deep: #00B574;
  --color-accent: #FF7A1A;
  --color-ink: #0A1F1B;
  --color-ink-2: #12312A;
  --color-surface: #FFFFFF;
  --color-bg: #F3F7F5;
  --color-text: #15201C;
  --color-text-muted: #5B6B66;
  --border-sm: 8px;
  --border-md: 16px;
  --border-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(10,31,27,.06);
  --shadow-md: 0 8px 24px rgba(10,31,27,.1);
  --shadow-lg: 0 16px 40px rgba(10,31,27,.16);
  --font-family: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
ul, ol { list-style: none; }

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

/* ========== 按钮体系 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn i { font-size: 15px; }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; border-radius: 10px; }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { box-shadow: 0 0 20px rgba(255,122,26,.45); filter: brightness(1.05); transform: translateY(-2px); }
.btn-accent:active { transform: scale(.97); }
.btn-primary { background: var(--color-primary); color: var(--color-ink); }
.btn-primary:hover { box-shadow: 0 0 16px rgba(0,232,160,.35); transform: translateY(-2px); }
.btn-primary:active { transform: scale(.97); }
.btn-outline { background: transparent; border: 1.5px solid rgba(255,255,255,.85); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.08); transform: translateY(-2px); }
.btn-outline:active { transform: scale(.97); }
.btn-outline-dark { border-color: rgba(10,31,27,.22); color: var(--color-ink); }
.btn-outline-dark:hover { background: rgba(10,31,27,.04); }
.btn:focus-visible { outline: 3px solid rgba(0,232,160,.4); outline-offset: 2px; }

/* ========== 徽章与标签 ========== */
.badge-official {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary);
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 100px;
  letter-spacing: .02em;
  white-space: nowrap;
}
.badge-official::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-ink);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.75); }
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 100px;
  padding: 6px 14px;
  white-space: nowrap;
}
.tag-light { background: rgba(0,232,160,.1); border-color: rgba(0,232,160,.28); color: var(--color-primary-deep); }

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 64px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(10,31,27,.06);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #00E8A0 0%, #00B574 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0,181,116,.3);
}
.brand-mark svg { width: 20px; height: 20px; }
.brand-text { font-size: 20px; font-weight: 700; color: var(--color-ink); letter-spacing: .01em; }
.brand-text small { display: block; font-size: 11px; font-weight: 500; color: var(--color-text-muted); line-height: 1; margin-top: 2px; letter-spacing: .06em; }

.site-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: 10px;
  transition: all .2s ease;
  position: relative;
  white-space: nowrap;
}
.nav-link:hover { color: var(--color-primary-deep); background: rgba(0,232,160,.08); }
.nav-link.active { color: var(--color-primary-deep); font-weight: 600; background: rgba(0,232,160,.1); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-primary-deep);
}
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-ink);
  background: rgba(0,232,160,.1);
  transition: background .2s;
}
.nav-toggle:hover { background: rgba(0,232,160,.2); }

/* ========== 首屏横幅 ========== */
.page-banner {
  position: relative;
  background:
    linear-gradient(130deg, rgba(10,31,27,.95) 0%, rgba(18,49,42,.9) 55%, rgba(0,232,160,.22) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 96px 0 140px;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(0,232,160,.28) 0%, transparent 62%);
  pointer-events: none;
}
.page-banner::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 72px;
  background: var(--color-bg);
  clip-path: polygon(0 100%, 100% 44%, 100% 100%, 0 100%);
  pointer-events: none;
}
.banner-inner { position: relative; z-index: 2; max-width: 780px; }
.banner-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.banner-title {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  letter-spacing: .01em;
  margin-bottom: 18px;
}
.banner-title .hl { color: var(--color-primary); }
.banner-sub {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255,255,255,.78);
  max-width: 640px;
  margin-bottom: 32px;
}
.banner-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.banner-meta {
  margin-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.banner-meta i { color: var(--color-primary); margin-right: 4px; }

/* ========== 板块通用 ========== */
.section-block { padding: 88px 0; }
.section-head { margin-bottom: 48px; }
.section-head.center { text-align: center; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary-deep);
  background: rgba(0,232,160,.1);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: .04em;
}
.section-title { font-size: clamp(28px, 3.5vw, 38px); font-weight: 700; line-height: 1.3; color: var(--color-ink); margin-bottom: 14px; }
.section-desc { font-size: 16px; color: var(--color-text-muted); max-width: 680px; line-height: 1.75; }
.section-head.center .section-desc { margin-left: auto; margin-right: auto; }

/* ========== 双栏对照区 ========== */
.guide-compare { padding: 88px 0; }
.compare-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
  align-items: start;
}
.left-list { display: flex; flex-direction: column; gap: 16px; }
.left-card {
  display: flex;
  gap: 16px;
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,.04);
  border-radius: var(--border-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.left-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.left-card .icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(0,232,160,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--color-ink);
  flex-shrink: 0;
  transition: background .25s;
}
.left-card:hover .icon { background: rgba(0,232,160,.18); }
.left-card h3 { font-size: 18px; font-weight: 600; color: var(--color-ink); margin-bottom: 6px; line-height: 1.4; }
.left-card p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }

.right-feeds { display: flex; flex-direction: column; gap: 24px; }
.feed-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,.04);
  border-radius: var(--border-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.feed-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feed-media { position: relative; min-height: 180px; overflow: hidden; }
.feed-media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; transition: transform .4s ease; }
.feed-item:hover .feed-media img { transform: scale(1.05); }
.feed-media .cat {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-ink);
  background: var(--color-primary);
  padding: 4px 10px;
  border-radius: 100px;
  z-index: 2;
}
.feed-body { padding: 22px 24px; display: flex; flex-direction: column; }
.feed-body h3 { font-size: 19px; font-weight: 600; color: var(--color-ink); line-height: 1.4; margin-bottom: 8px; }
.feed-body p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 14px; }
.feed-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-deep);
  transition: gap .2s ease;
}
.feed-link:hover { gap: 10px; }

/* ========== CTA 插条 ========== */
.cta-band {
  position: relative;
  background: var(--color-ink);
  padding: 80px 0;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0,232,160,.3) 0%, transparent 60%);
  pointer-events: none;
}
.cta-band::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255,122,26,.2) 0%, transparent 60%);
  pointer-events: none;
}
.cta-band .cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.cta-band h2 { font-size: clamp(28px, 3.5vw, 38px); color: #fff; font-weight: 700; margin-bottom: 12px; line-height: 1.3; }
.cta-band p { color: rgba(255,255,255,.7); font-size: 16px; margin-bottom: 28px; }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }

/* ========== 三端对照 ========== */
.platform-compare { padding: 88px 0; }
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.platform-card {
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,.04);
  border-radius: var(--border-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
  position: relative;
  overflow: hidden;
}
.platform-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-deep));
  opacity: 0;
  transition: opacity .25s;
}
.platform-card:hover::before { opacity: 1; }
.platform-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.platform-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(0,232,160,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--color-ink);
  margin-bottom: 18px;
}
.platform-card h3 { font-size: 20px; font-weight: 700; color: var(--color-ink); margin-bottom: 16px; }
.spec-list { display: flex; flex-direction: column; }
.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(10,31,27,.06);
  gap: 16px;
}
.spec-row:last-child { border-bottom: none; }
.spec-label { font-size: 13px; font-weight: 500; color: var(--color-text-muted); flex-shrink: 0; }
.spec-value { font-size: 14px; font-weight: 600; color: var(--color-ink); text-align: right; }
.platform-card .check { color: var(--color-primary-deep); }

/* ========== FAQ ========== */
.faq-section { padding: 88px 0; background: var(--color-bg); }
.faq-wrap { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,.04);
  border-radius: var(--border-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow .25s;
}
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-item.active { box-shadow: var(--shadow-md); border-left: 3px solid var(--color-primary); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  text-align: left;
  width: 100%;
  background: none;
  transition: color .2s;
}
.faq-q:hover { color: var(--color-primary-deep); }
.faq-q .fa-chevron-down { transition: transform .3s ease; color: var(--color-text-muted); font-size: 14px; flex-shrink: 0; }
.faq-item.active .fa-chevron-down { transform: rotate(180deg); color: var(--color-primary-deep); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .3s ease; padding: 0 24px; }
.faq-item.active .faq-a { max-height: 320px; padding: 0 24px 22px; }
.faq-a p { font-size: 14px; color: var(--color-text-muted); line-height: 1.75; }

/* ========== 底部 CTA ========== */
.cta-final { padding: 72px 0; position: relative; overflow: hidden; }
.cta-final .container {
  background: linear-gradient(120deg, var(--color-ink) 0%, var(--color-ink-2) 100%);
  border-radius: var(--border-lg);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
}
.cta-final .container::before {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0,232,160,.25), transparent 60%);
}
.cta-final h2 { font-size: clamp(24px, 2.6vw, 30px); color: #fff; font-weight: 700; line-height: 1.35; margin-bottom: 8px; position: relative; z-index: 1; }
.cta-final p { color: rgba(255,255,255,.65); font-size: 15px; position: relative; z-index: 1; }
.cta-final .cta-actions { flex-shrink: 0; position: relative; z-index: 1; flex-wrap: wrap; justify-content: flex-end; }

/* ========== 页脚 ========== */
.site-footer { background: var(--color-ink); color: #8AA39A; padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand p { font-size: 14px; line-height: 1.8; margin-top: 16px; max-width: 320px; color: #8AA39A; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #E8F2EE; margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a, .footer-download a {
  font-size: 14px;
  color: #8AA39A;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-links a:hover, .footer-download a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-download { display: flex; flex-direction: column; gap: 10px; }
.footer-download a i { width: 20px; margin-right: 6px; color: var(--color-primary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); }
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
  font-size: 13px;
  color: rgba(138,163,154,.7);
  gap: 12px;
  flex-wrap: wrap;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .compare-grid { grid-template-columns: 1fr; gap: 40px; }
  .right-feeds { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .feed-item { grid-template-columns: 1fr; }
  .feed-media { min-height: 160px; position: relative; }
  .feed-media img { position: static; width: 100%; height: 100%; min-height: 160px; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-final .container { flex-direction: column; text-align: center; padding: 48px 32px; }
  .cta-final .cta-actions { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .section-block, .guide-compare, .platform-compare, .faq-section { padding: 64px 0; }
  .page-banner { padding: 72px 0 120px; }
  .site-header .header-inner { gap: 12px; }
  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all .28s ease;
    border-bottom: 1px solid rgba(10,31,27,.06);
    z-index: 999;
  }
  .site-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-link { padding: 12px 14px; font-size: 16px; }
  .nav-link.active::after { display: none; }
  .nav-toggle { display: inline-flex; }
  .badge-official { display: none; }
  .header-actions .btn-sm { padding: 0 12px; font-size: 13px; }
  .right-feeds { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: 1fr; }
  .banner-actions .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .banner-title { font-size: 32px; }
  .banner-sub { font-size: 15px; }
  .page-banner { padding: 56px 0 100px; }
  .section-title { font-size: 26px; }
  .left-card { flex-direction: column; gap: 12px; }
  .left-card .icon { width: 48px; height: 48px; font-size: 20px; }
  .feed-body { padding: 18px; }
  .cta-actions { width: 100%; }
  .cta-actions .btn { width: 100%; justify-content: center; }
  .cta-final .container { padding: 40px 24px; }
  .faq-q { padding: 18px 18px; font-size: 15px; }
  .faq-a { padding: 0 18px; }
  .faq-item.active .faq-a { padding: 0 18px 18px; }
  .platform-card { padding: 24px 20px; }
}