/* roulang page: index */
:root{
  --color-bg:#0D0A14;--color-bg-side:#120E1C;--color-surface:#1A1526;--color-elevated:#241D36;
  --color-bg-glass:rgba(26,21,38,.72);--gradient-brand:linear-gradient(135deg,#FF6B35 0%,#FF2E7E 100%);
  --color-accent:#00E5A0;--color-text:#F5F1FF;--color-text-sub:#A79FC4;--color-text-dim:#6F6789;
  --color-border:rgba(255,255,255,.08);--glow-orange:0 0 24px rgba(255,107,53,.35);
  --radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--radius-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);--shadow-lift:0 16px 40px rgba(0,0,0,.5);
  --transition:all .3s ease;--font-main:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-main);background:var(--color-bg);color:var(--color-text);font-size:16px;line-height:1.7;font-variant-numeric:tabular-nums;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button,input{font-family:inherit;font-size:inherit;border:none;outline:none}
ul{list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #FF6B35;outline-offset:2px}
::placeholder{color:var(--color-text-dim)}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.section{padding:clamp(64px,8vw,120px) 0}

/* 侧边导航 */
.sidebar{position:fixed;top:0;left:0;width:240px;height:100vh;background:var(--color-bg-side);border-right:1px solid var(--color-border);display:flex;flex-direction:column;z-index:100;padding:32px 20px 28px}
.brand{display:flex;align-items:center;gap:12px;padding:6px 8px 24px;border-bottom:1px solid var(--color-border);margin-bottom:24px}
.brand-icon{width:40px;height:40px;border-radius:12px;background:var(--gradient-brand);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 0 18px rgba(255,46,126,.35)}
.brand-icon svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:20px;font-weight:800;color:var(--color-text);letter-spacing:.5px}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-item{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--radius-md);font-size:15px;font-weight:500;color:var(--color-text-sub);gap:10px;transition:var(--transition);position:relative}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--color-text)}
.nav-item.active{background:var(--gradient-brand);color:#fff;font-weight:600;box-shadow:0 4px 16px rgba(255,46,126,.25)}
.nav-item.active::before{content:"";position:absolute;left:-20px;top:12px;bottom:12px;width:3px;background:var(--color-accent);border-radius:3px;box-shadow:0 0 8px rgba(0,229,160,.6)}
.nav-item svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.side-footer{border-top:1px solid var(--color-border);padding-top:20px;margin-top:auto}
.user-status{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--color-text-sub);margin-bottom:14px}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 8px rgba(0,229,160,.7);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

/* 按钮体系 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-pill);padding:14px 28px;font-size:15px;font-weight:600;transition:var(--transition);cursor:pointer;touch-action:manipulation;line-height:1.4}
.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:var(--glow-orange)}
.btn-primary:hover{filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 0 32px rgba(255,107,53,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-secondary{background:transparent;border:1px solid rgba(255,255,255,.2);color:var(--color-text)}
.btn-secondary:hover{border-color:var(--color-text);color:var(--color-text);background:rgba(255,255,255,.04)}
.btn-sm{padding:10px 22px;font-size:14px}
.btn-lg{height:56px;padding:0 42px;font-size:16px}

/* 主内容区 */
.main-content{margin-left:240px;min-height:100vh}
.mobile-header{display:none}

/* Hero */
.hero{min-height:90vh;display:flex;align-items:center;position:relative;background:url('/assets/images/backpic/back-1.webp') center center/cover no-repeat;padding:60px 0}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,10,20,.55) 0%,rgba(13,10,20,.82) 55%,var(--color-bg) 100%)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 15% 60%,rgba(255,107,53,.15),transparent 55%),radial-gradient(ellipse at 85% 25%,rgba(0,229,160,.1),transparent 50%);pointer-events:none}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center;width:100%}
.hero-content{max-width:560px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,160,.12);border:1px solid rgba(0,229,160,.3);color:var(--color-accent);font-size:13px;font-weight:600;padding:6px 16px;border-radius:var(--radius-pill);margin-bottom:20px}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 6px rgba(0,229,160,.8)}
.hero h1{font-size:clamp(32px,5vw,52px);font-weight:800;line-height:1.15;margin-bottom:20px;letter-spacing:-.5px}
.hero h1 .gradient-text{background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{font-size:17px;color:var(--color-text-sub);line-height:1.8;margin-bottom:28px}
.hero-sub span{color:var(--color-text);font-weight:500}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:32px}
.trust-row{display:flex;gap:24px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--color-text-sub)}
.trust-item .tick{width:18px;height:18px;border-radius:50%;background:rgba(0,229,160,.15);display:flex;align-items:center;justify-content:center;color:var(--color-accent);font-size:11px}
.trust-item b{color:var(--color-text);font-weight:600}

/* 登录入口卡 */
.login-card{width:100%;max-width:380px;margin-left:auto;background:var(--color-bg-glass);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:32px 28px;position:relative;box-shadow:0 20px 50px rgba(0,0,0,.4)}
.login-card::before{content:"";position:absolute;inset:-1px;border-radius:var(--radius-lg);padding:1px;background:var(--gradient-brand);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.45;pointer-events:none}
.login-card h3{font-size:20px;font-weight:700;margin-bottom:22px;display:flex;align-items:center;gap:8px}
.login-card h3::before{content:"";width:4px;height:18px;border-radius:4px;background:var(--gradient-brand)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;color:var(--color-text-sub);margin-bottom:6px;font-weight:500}
.form-group input{width:100%;height:46px;background:var(--color-bg);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:0 16px;color:var(--color-text);font-size:15px;transition:var(--transition)}
.form-group input:focus{border-color:var(--color-text);box-shadow:0 0 0 3px rgba(255,107,53,.15)}
.login-submit{width:100%;height:48px;margin-top:6px;font-size:15px}
.login-help{display:flex;justify-content:space-between;margin-top:14px;font-size:13px}
.login-help a{color:var(--color-text-sub);transition:var(--transition)}
.login-help a:hover{color:var(--color-text)}
.login-status{display:flex;align-items:center;gap:8px;margin-top:22px;padding-top:18px;border-top:1px solid var(--color-border);font-size:13px;color:var(--color-text-sub)}
.login-status .dot{width:7px;height:7px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 8px rgba(0,229,160,.7);animation:pulse 2s infinite}
.login-status b{color:var(--color-accent);font-weight:600}

/* 板块标题 */
.section-header{text-align:center;margin-bottom:56px}
.section-tag{display:inline-block;font-size:13px;font-weight:600;color:var(--color-accent);background:rgba(0,229,160,.1);border:1px solid rgba(0,229,160,.25);padding:5px 14px;border-radius:var(--radius-pill);margin-bottom:14px}
.section-header h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;margin-bottom:12px}
.section-header p{color:var(--color-text-sub);font-size:15px;max-width:640px;margin:0 auto}

/* 玩法步骤 */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:32px 24px;position:relative;transition:var(--transition)}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(255,255,255,.15)}
.step-num{font-size:30px;font-weight:800;background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px;font-variant-numeric:tabular-nums}
.step-icon{width:52px;height:52px;border-radius:14px;background:rgba(255,107,53,.12);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step-icon svg{width:26px;height:26px;stroke:var(--color-text);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.step-card p{font-size:14px;color:var(--color-text-sub);line-height:1.7}
.step-arrow{position:absolute;right:-24px;top:50%;transform:translateY(-50%);color:var(--color-accent);font-size:18px;z-index:2}
.steps-grid .step-card:last-child .step-arrow{display:none}

/* 奖励区 */
.rewards-area{background:var(--color-bg-side)}
.rewards-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.reward-main{position:relative;border-radius:var(--radius-xl);overflow:hidden;min-height:380px;background:var(--color-surface);border:1px solid var(--color-border);display:flex;flex-direction:column}
.reward-main .reward-bg{position:absolute;inset:0;z-index:0}
.reward-main .reward-bg img{width:100%;height:100%;object-fit:cover}
.reward-main .reward-cover{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,10,20,.1) 30%,rgba(13,10,20,.85) 100%);z-index:1}
.reward-main .reward-body{position:relative;z-index:2;margin-top:auto;padding:32px}
.reward-corner{position:absolute;top:20px;right:20px;z-index:3;background:var(--gradient-brand);color:#fff;font-size:12px;font-weight:700;padding:5px 14px;border-radius:var(--radius-pill);box-shadow:0 4px 12px rgba(255,46,126,.35)}
.reward-value{display:inline-block;background:rgba(0,229,160,.15);border:1px solid rgba(0,229,160,.35);color:var(--color-accent);font-size:20px;font-weight:800;padding:6px 16px;border-radius:var(--radius-pill);margin-bottom:12px;font-variant-numeric:tabular-nums}
.reward-value.lg{font-size:26px}
.reward-main h3{font-size:24px;font-weight:700;margin-bottom:8px;color:#fff}
.reward-main p{font-size:14px;color:rgba(255,255,255,.75);line-height:1.7;margin-bottom:16px;max-width:420px}
.reward-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--color-text)}
.reward-link:hover{color:var(--color-accent)}
.reward-side{display:flex;flex-direction:column;gap:24px}
.reward-small{position:relative;flex:1;border-radius:var(--radius-lg);overflow:hidden;background:var(--color-surface);border:1px solid var(--color-border);min-height:180px;display:flex;flex-direction:column}
.reward-small .reward-bg{position:absolute;inset:0;z-index:0}
.reward-small .reward-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.65)}
.reward-small .reward-cov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,10,20,.2),rgba(13,10,20,.88));z-index:1}
.reward-small .reward-body{position:relative;z-index:2;margin-top:auto;padding:22px}
.reward-small .reward-value{font-size:17px;padding:4px 12px;margin-bottom:8px}
.reward-small h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:4px}
.reward-small p{font-size:13px;color:rgba(255,255,255,.7)}

/* 任务进度 */
.progress-area{padding:clamp(64px,8vw,120px) 0}
.progress-wrapper{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:48px 40px}
.progress-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:36px;flex-wrap:wrap;gap:20px}
.progress-title{font-size:20px;font-weight:700}
.progress-countdown{display:inline-flex;align-items:center;gap:6px;background:rgba(0,229,160,.1);border:1px solid rgba(0,229,160,.25);color:var(--color-accent);padding:8px 18px;border-radius:var(--radius-pill);font-size:14px;font-weight:700}
.countdown-num{font-variant-numeric:tabular-nums;letter-spacing:2px;font-size:18px}
.countdown-colon{animation:blink 1s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.progress-track{position:relative;height:10px;background:rgba(255,255,255,.06);border-radius:var(--radius-pill);margin-bottom:48px}
.progress-fill{height:100%;border-radius:var(--radius-pill);background:var(--gradient-brand);width:68%;position:relative;transition:width .6s ease}
.progress-fill::after{content:"";position:absolute;right:-4px;top:50%;transform:translateY(-50%);width:16px;height:16px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,46,126,.3)}
.progress-percent{position:absolute;right:0;top:-42px;background:var(--gradient-brand);color:#fff;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;box-shadow:0 8px 20px rgba(255,46,126,.4);font-variant-numeric:tabular-nums}
.milestones{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.milestone-card{background:var(--color-bg-glass);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px;display:flex;align-items:flex-start;gap:14px;transition:var(--transition)}
.milestone-card:hover{transform:translateY(-3px)}
.milestone-card.done{border-color:rgba(0,229,160,.3)}
.milestone-card.done .m-icon{background:rgba(0,229,160,.15);color:var(--color-accent);border-color:rgba(0,229,160,.4)}
.milestone-card.active{border-color:rgba(255,200,87,.5);box-shadow:0 0 20px rgba(255,200,87,.1)}
.milestone-card.active .m-icon{background:rgba(255,200,87,.15);color:var(--color-text);border-color:rgba(255,200,87,.4)}
.milestone-card.locked{opacity:.45;transform:scale(.98)}
.m-icon{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--color-border);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.m-body h4{font-size:15px;font-weight:600;margin-bottom:4px}
.m-body p{font-size:13px;color:var(--color-text-sub);line-height:1.5}

/* CTA Band */
.cta-band{position:relative;padding:100px 0;text-align:center;background:url('/assets/images/backpic/back-3.webp') center center/cover no-repeat}
.cta-band::before{content:"";position:absolute;inset:0;background:rgba(13,10,20,.82)}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 100%,rgba(255,46,126,.18),transparent 60%);pointer-events:none}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta-inner h2{font-size:clamp(28px,4vw,42px);font-weight:800;margin-bottom:18px;line-height:1.2}
.cta-inner h2 .gradient-text{background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.cta-inner p{font-size:16px;color:var(--color-text-sub);margin-bottom:32px;line-height:1.7}
.cta-inner .btn-lg{animation:glow 3s ease-in-out infinite}
@keyframes glow{0%,100%{box-shadow:var(--glow-orange)}50%{box-shadow:0 0 42px rgba(255,107,53,.55)}}
.cta-badges{display:flex;justify-content:center;gap:32px;margin-top:40px;flex-wrap:wrap}
.cta-badge{text-align:center}
.cta-badge .num{font-size:24px;font-weight:800;color:var(--color-accent);font-variant-numeric:tabular-nums}
.cta-badge .label{font-size:13px;color:var(--color-text-sub)}

/* 资讯列表 */
.news-area{background:var(--color-bg-side)}
.cms-news-list{display:flex;flex-direction:column;gap:20px;max-width:960px;margin:0 auto}
.news-card{display:flex;gap:20px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px;transition:var(--transition);position:relative;overflow:hidden;align-items:center}
.news-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gradient-brand);transform:scaleY(0);transform-origin:center;transition:transform .3s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(255,255,255,.14)}
.news-card:hover::before{transform:scaleY(1)}
.news-thumb{width:160px;height:100px;border-radius:var(--radius-md);overflow:hidden;flex-shrink:0;position:relative;background:var(--color-elevated)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-info{flex:1;min-width:0}
.news-info h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .3s}
.news-card:hover .news-info h3{color:#fff}
.news-info p{font-size:14px;color:var(--color-text-sub);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.news-meta{display:flex;align-items:center;gap:12px}
.news-tag{font-size:12px;font-weight:600;background:rgba(255,107,53,.15);color:var(--color-text);padding:3px 10px;border-radius:var(--radius-pill)}
.news-date{font-size:13px;color:var(--color-text-dim)}
.news-read-more{font-size:14px;font-weight:600;color:var(--color-accent);flex-shrink:0;display:flex;align-items:center;gap:4px}
.news-empty{text-align:center;padding:60px 20px;background:var(--color-surface);border:1px dashed var(--color-border);border-radius:var(--radius-lg)}
.news-empty .empty-icon{font-size:40px;margin-bottom:14px}
.news-empty p{color:var(--color-text-sub);font-size:15px}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:1000px;margin:0 auto}
.faq-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}
.faq-item.open{border-color:rgba(255,255,255,.16);box-shadow:var(--shadow-card)}
.faq-item.open::before{content:"";display:block;width:100%;height:3px;background:var(--gradient-brand)}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:transparent;color:var(--color-text);font-size:16px;font-weight:600;cursor:pointer;text-align:left;gap:16px}
.faq-toggle{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-toggle::before,.faq-toggle::after{content:"";position:absolute;background:var(--color-accent);border-radius:2px;transition:var(--transition)}
.faq-toggle::before{width:18px;height:2px;top:8px;left:0}
.faq-toggle::after{width:2px;height:18px;top:0;left:8px}
.faq-item.open .faq-toggle::after{transform:scaleY(0)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.open .faq-answer{max-height:300px;padding-bottom:22px}
.faq-answer p{font-size:14px;color:var(--color-text-sub);line-height:1.8}

/* 页脚 */
.footer{background:var(--color-bg-side);border-top:1px solid var(--color-border);padding:70px 0 0;margin-left:240px}
.footer-top{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px);display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:50px}
.footer-brand .brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;padding:0;border:none}
.footer-brand .brand-icon{width:34px;height:34px;border-radius:10px}
.footer-brand .brand-text{font-size:18px}
.footer-brand p{font-size:14px;color:var(--color-text-sub);line-height:1.7;max-width:300px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--color-text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--color-text-sub);transition:var(--transition)}
.footer-col ul a:hover{color:var(--color-text);padding-left:4px}
.footer-col .compliance-note{font-size:13px;color:var(--color-text-dim);line-height:1.7;background:rgba(255,255,255,.03);border-radius:var(--radius-sm);padding:14px 16px;margin-top:6px}
.footer-bottom{padding:20px 0;border-top:1px solid var(--color-border);text-align:center;font-size:13px;color:var(--color-text-dim)}
.footer-bottom .container{max-width:1200px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.footer-bottom a{color:var(--color-text-sub)}
.footer-bottom a:hover{color:var(--color-text)}

/* 移动端导航 */
.mobile-header{position:fixed;top:0;left:0;right:0;z-index:200;display:none;align-items:center;justify-content:space-between;padding:0 20px;height:64px;background:var(--color-bg-side);border-bottom:1px solid var(--color-border)}
.mobile-brand{display:flex;align-items:center;gap:10px}
.mobile-brand .brand-icon{width:32px;height:32px;border-radius:9px;background:var(--gradient-brand);display:flex;align-items:center;justify-content:center}
.mobile-brand .brand-icon svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.mobile-brand span{font-size:18px;font-weight:800}
.burger-btn{width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid var(--color-border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;touch-action:manipulation}
.burger-btn span{width:18px;height:2px;background:var(--color-text);border-radius:2px;transition:var(--transition)}
.burger-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger-btn.open span:nth-child(2){opacity:0}
.burger-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(13,10,20,.95);backdrop-filter:blur(12px);z-index:190;padding:30px 24px;display:none;overflow-y:auto}
.mobile-menu.open{display:block}
.mobile-menu .nav-item{height:52px;font-size:16px;margin-bottom:6px}
.mobile-menu .nav-item.active{background:var(--gradient-brand);color:#fff}
.mobile-menu .m-menu-footer{margin-top:36px;padding-top:24px;border-top:1px solid var(--color-border)}
.mobile-menu .btn{width:100%}

/* 响应式 */
@media(max-width:1024px){
  .sidebar{display:none}
  .mobile-header{display:flex}
  .main-content{margin-left:0;padding-top:64px}
  .footer{margin-left:0}
  .hero .container{grid-template-columns:1fr;gap:40px}
  .login-card{margin:0 auto}
  .hero{padding:60px 0 80px}
  .hero-content{max-width:100%;text-align:center}
  .hero-ctas{justify-content:center}
  .trust-row{justify-content:center}
  .hero h1{font-size:clamp(28px,5vw,44px)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .step-arrow{display:none}
  .rewards-grid{grid-template-columns:1fr}
  .reward-small{min-height:150px}
  .milestones{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .steps-grid{grid-template-columns:1fr}
  .news-card{flex-direction:column;align-items:flex-start}
  .news-thumb{width:100%;height:160px}
  .news-read-more{align-self:flex-end}
  .cta-badges{gap:20px}
  .cta-badge .num{font-size:20px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .progress-wrapper{padding:32px 20px}
  .btn-lg{width:100%}
  .hero-ctas .btn{flex:1;min-width:140px}
}
@media(max-width:480px){
  .hero{padding:50px 0 60px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .login-card{padding:24px 18px}
  .section-header{margin-bottom:40px}
  .reward-main .reward-body{padding:22px}
  .reward-main h3{font-size:20px}
  .progress-top{flex-direction:column;align-items:flex-start}
  .footer-bottom .container{font-size:12px}
  .hero-ctas{flex-direction:column}
  .hero-ctas .btn{width:100%}
}

/* roulang page: article */
:root {
  --color-bg: #0D0A14;
  --color-bg-side: #120E1C;
  --color-surface: #1A1526;
  --color-elevated: #241D36;
  --color-bg-glass: rgba(26, 21, 38, 0.72);
  --gradient-brand: linear-gradient(135deg, #FF6B35 0%, #FF2E7E 100%);
  --color-accent: #00E5A0;
  --color-text: #F5F1FF;
  --color-text-secondary: #A79FC4;
  --color-text-muted: #6F6789;
  --color-border: rgba(255,255,255,0.08);
  --glow-orange: 0 0 24px rgba(255,107,53,0.35);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lift: 0 16px 40px rgba(0,0,0,0.5);
  --transition: 200ms ease;
  --font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, 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);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input, textarea {
  font-family: inherit;
  outline: none;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: clamp(20px, 4vw, 48px);
  padding-right: clamp(20px, 4vw, 48px);
}

/* ── 桌面侧栏导航 ── */
.side-nav-wrap {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 100vh;
  background: var(--color-bg-side);
  border-right: 1px solid var(--color-border);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.side-nav-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px 18px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 10px 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 18px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 16px rgba(255, 46, 126, 0.25);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  stroke: #fff;
  fill: none;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--color-text);
  white-space: nowrap;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 48px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.nav-item:hover {
  background: rgba(255,255,255,0.04);
  color: var(--color-text);
}

.nav-item.active {
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 18px rgba(255, 46, 126, 0.25);
}

.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 22px;
  background: var(--color-accent);
  border-radius: 0 4px 4px 0;
}

.side-nav-footer {
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--gradient-brand);
  color: #fff;
  border-radius: 999px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 18px rgba(255, 46, 126, 0.25);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: var(--glow-orange);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn-block {
  width: 100%;
}

.side-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ── 移动端顶部导航 ── */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(13, 10, 20, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 200;
}

.mobile-header .brand {
  padding: 0;
  border: none;
  margin: 0;
}

.menu-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.05);
  transition: background var(--transition);
}

.menu-toggle:hover {
  background: rgba(255,255,255,0.1);
}

.menu-toggle svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-text);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--color-bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 20px 24px;
  z-index: 190;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu .nav-item {
  height: 48px;
}

.mobile-menu .side-status {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

body.menu-open {
  overflow: hidden;
}

/* ── 主内容区 ── */
.main-content {
  margin-left: 240px;
  min-height: 100vh;
  padding-top: 20px;
  padding-bottom: 60px;
}

.article-page {
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(255, 107, 53, 0.08), transparent 60%),
    radial-gradient(400px 250px at 10% 20%, rgba(0, 229, 160, 0.05), transparent 60%),
    var(--color-bg);
}

/* ── 面包屑 ── */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 24px 0 16px;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

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

.breadcrumb .sep {
  color: var(--color-text-muted);
  margin: 0 6px;
}

.breadcrumb .current {
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
}

/* ── 文章头 ── */
.article-header {
  margin-bottom: 40px;
  padding: 32px 0 8px;
}

.article-category {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: var(--gradient-brand);
  border-radius: 999px;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
  box-shadow: 0 2px 10px rgba(255, 46, 126, 0.18);
}

.article-header h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  color: var(--color-text);
  letter-spacing: -0.5px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.article-meta .dot {
  color: var(--color-text-muted);
  opacity: 0.6;
}

.article-meta .meta-value {
  color: var(--color-text-secondary);
}

.article-cover {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: 10px;
  position: relative;
}

.article-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(13, 10, 20, 0.3) 100%);
  pointer-events: none;
}

.article-cover img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  aspect-ratio: 16 / 7;
}

/* ── 正文阅读区 ── */
.article-body-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--color-text);
}

.article-body p {
  margin-bottom: 1.5em;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  margin: 1.8em 0 0.8em;
  padding-left: 16px;
  position: relative;
  color: var(--color-text);
}

.article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  width: 4px;
  height: 1.1em;
  background: var(--gradient-brand);
  border-radius: 4px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin: 1.6em 0 0.6em;
  color: var(--color-text);
}

.article-body img {
  max-width: 100%;
  border-radius: 16px;
  margin: 24px 0;
  border: 1px solid var(--color-border);
}

.article-body a {
  color: #FF6B35;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.article-body a:hover {
  color: #FF2E7E;
}

.article-body blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--color-elevated);
  border-radius: 12px;
  border-left: 4px solid;
  border-image: var(--gradient-brand) 1;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

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

.article-body table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.6;
}

.article-body table th {
  background: var(--color-elevated);
  color: var(--color-text);
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.article-body table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.article-body table tr:nth-child(even) td {
  background: rgba(255,255,255,0.02);
}

.article-body table tr:last-child td {
  border-bottom: none;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.5em 1.2em;
  padding-left: 0.4em;
}

.article-body ul li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  color: var(--color-text-secondary);
}

.article-body ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-brand);
}

.article-body ol {
  list-style: decimal;
}

.article-body ol li {
  padding-left: 4px;
  margin-bottom: 8px;
  color: var(--color-text-secondary);
}

.article-body code {
  background: var(--color-elevated);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.9em;
  color: var(--color-accent);
}

.article-body pre {
  background: var(--color-elevated);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
}

.article-body pre code {
  background: none;
  padding: 0;
  color: var(--color-text-secondary);
}

.article-body hr {
  border: 0;
  height: 1px;
  background: var(--color-border);
  margin: 32px 0;
}

/* ── 文末标签 ── */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 40px auto 0;
  max-width: 760px;
}

.article-tags .tag {
  display: inline-flex;
  padding: 6px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: border-color var(--transition), color var(--transition);
}

.article-tags .tag:hover {
  border-color: rgba(255, 107, 53, 0.5);
  color: var(--color-text);
}

.article-share {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 760px;
  margin: 24px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.share-btn svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.share-btn:hover {
  border-color: rgba(0, 229, 160, 0.4);
  color: var(--color-accent);
  transform: translateY(-1px);
}

/* ── 相关内容 ── */
.related-section {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.related-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 28px;
  position: relative;
  padding-left: 16px;
}

.related-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  width: 4px;
  height: 0.9em;
  background: var(--gradient-brand);
  border-radius: 4px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display: block;
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: var(--shadow-lift);
}

.related-card .cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.related-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.related-card .body {
  padding: 16px 18px 18px;
}

.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-text);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.related-card:hover h3 {
  color: #FF6B35;
}

.related-card .date {
  font-size: 13px;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* ── 上一篇 / 下一篇 ── */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 56px;
}

.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.post-nav-link::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,107,53,0.06), rgba(255,46,126,0.06));
  opacity: 0;
  transition: opacity var(--transition);
}

.post-nav-link:hover::before {
  opacity: 1;
}

.post-nav-link:hover {
  border-color: rgba(255, 107, 53, 0.35);
  transform: translateY(-2px);
}

.post-nav-link.next {
  text-align: right;
}

.post-nav-link .direction {
  font-size: 13px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
  z-index: 1;
}

.post-nav-link.next .direction {
  flex-direction: row-reverse;
}

.post-nav-link .direction svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.post-nav-link .title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  position: relative;
  z-index: 1;
}

/* ── 空态 ── */
.article-empty {
  text-align: center;
  padding: 80px 20px;
  max-width: 560px;
  margin: 0 auto;
}

.article-empty svg {
  width: 64px;
  height: 64px;
  stroke: var(--color-text-muted);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-bottom: 20px;
}

.article-empty h2 {
  font-size: 24px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.article-empty p {
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.article-empty a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: 999px;
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  transition: filter var(--transition), transform var(--transition);
}

.article-empty a:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

/* ── 页脚 ── */
.footer {
  margin-left: 240px;
  background: var(--color-bg-side);
  border-top: 1px solid var(--color-border);
  padding-top: 56px;
}

.footer-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 44px;
}

.footer-brand .brand {
  padding: 0;
  border: none;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: #FF6B35;
}

.compliance-note {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-bottom .container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

/* ── 响应式断点 ── */
@media (max-width: 1024px) {
  .side-nav-wrap {
    transform: translateX(-100%);
  }

  .mobile-header {
    display: flex;
  }

  .mobile-menu {
    display: block;
  }

  .main-content {
    margin-left: 0;
    padding-top: 64px;
  }

  .footer {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .breadcrumb {
    padding: 16px 0 8px;
  }

  .article-header {
    padding-top: 20px;
  }

  .article-header h1 {
    font-size: 30px;
  }

  .article-cover img {
    aspect-ratio: 16 / 9;
  }

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

  .post-nav {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .main-content {
    padding-bottom: 32px;
  }

  .article-header h1 {
    font-size: 26px;
  }

  .article-body {
    font-size: 15px;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }

  .post-nav-link {
    padding: 16px 18px;
  }

  .breadcrumb .current {
    max-width: 200px;
  }
}

/* roulang page: category1 */
:root {
  --color-bg: #0D0A14;
  --color-bg-side: #120E1C;
  --color-surface: #1A1526;
  --color-elevated: #241D36;
  --color-bg-glass: rgba(26, 21, 38, 0.72);
  --gradient-brand: linear-gradient(135deg, #FF6B35 0%, #FF2E7E 100%);
  --color-accent: #00E5A0;
  --color-text: #F5F1FF;
  --color-text-sub: #A79FC4;
  --color-text-dim: #6F6789;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.16);
  --glow-orange: 0 0 24px rgba(255, 107, 53, 0.35);
  --glow-accent: 0 0 18px rgba(0, 229, 160, 0.25);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lift: 0 16px 40px rgba(0, 0, 0, 0.5);
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --side-nav-width: 240px;
  --space-section: clamp(64px, 8vw, 120px);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input {
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid #FF6B35;
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ===== 左侧导航 ===== */
.side-nav {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--side-nav-width);
  background: var(--color-bg-side);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.side-nav-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px 16px 24px;
}

.brand-area {
  padding: 8px 8px 30px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-orange);
  flex-shrink: 0;
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: #fff;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-text {
  font-size: 19px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.side-nav-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.side-nav-links .nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 48px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  color: var(--color-text-sub);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  border-left: 3px solid transparent;
}

.side-nav-links .nav-item svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.side-nav-links .nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text);
}

.side-nav-links .nav-item.active {
  background: var(--gradient-brand);
  color: #fff;
  border-left-color: #fff;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px rgba(255, 46, 126, 0.25);
  font-weight: 600;
}

.side-bottom {
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.btn-safe {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  border-radius: 999px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  box-shadow: var(--glow-orange);
  transition: var(--transition);
  touch-action: manipulation;
}

.btn-safe:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-safe:active {
  transform: scale(0.98);
}

/* ===== 移动端顶栏 ===== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 90;
  height: 60px;
  background: rgba(13, 10, 20, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 0 20px;
  align-items: center;
  justify-content: space-between;
}

.mobile-header .brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

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

.menu-toggle {
  width: 42px;
  height: 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-sm);
  padding: 10px;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.05);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== 移动端菜单浮层 ===== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--color-bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 20px;
  z-index: 89;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu .nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 46px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  color: var(--color-text-sub);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.mobile-menu .nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text);
}

.mobile-menu .nav-item.active {
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 600;
}

.mobile-menu .btn-safe {
  margin-top: 14px;
}

/* ===== 主内容布局 ===== */
.main-wrapper {
  margin-left: var(--side-nav-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left 0.3s ease;
}

.main-content {
  flex: 1;
  padding-bottom: 0;
}

/* ===== 页首横幅 ===== */
.page-banner {
  position: relative;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 24px 60px;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13, 10, 20, 0.55), var(--color-bg) 95%);
}

.page-banner::after {
  content: '';
  position: absolute;
  right: -120px;
  top: -80px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.18), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.page-banner > * {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--color-text-sub);
}

.breadcrumb a:hover {
  color: #FF6B35;
}

.breadcrumb .sep {
  color: var(--color-text-dim);
}

.breadcrumb .current {
  color: var(--color-text);
}

.page-banner h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text);
  letter-spacing: 0.5px;
  margin-bottom: 18px;
}

.page-banner h1 span {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-banner .banner-desc {
  font-size: 16px;
  color: var(--color-text-sub);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== 通用区块 ===== */
.section-block {
  padding: var(--space-section) clamp(20px, 4vw, 48px) 0;
}

.section-title-wrap {
  margin-bottom: 40px;
  text-align: center;
}

.section-title-wrap.left {
  text-align: left;
}

.section-title-wrap h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  letter-spacing: 0.5px;
}

.section-title-wrap .section-desc {
  margin-top: 12px;
  font-size: 15px;
  color: var(--color-text-sub);
  max-width: 660px;
  line-height: 1.8;
}

.section-title-wrap.left .section-desc {
  margin-left: 0;
}

/* ===== 入口方式 ===== */
.entry-section {
  padding: var(--space-section) clamp(20px, 4vw, 48px) 0;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.entry-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 36px 32px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  min-height: 210px;
}

.entry-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-brand);
  border-radius: 0 3px 3px 0;
  opacity: 0;
  transition: var(--transition);
}

.entry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--color-border-strong);
}

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

.entry-card .step-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 14px;
  font-weight: 800;
  color: var(--color-text-dim);
  padding: 4px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  letter-spacing: 1px;
}

.entry-card .entry-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}

.entry-card .entry-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: #FF6B35;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.entry-card:hover .entry-icon {
  background: var(--gradient-brand);
  border-color: transparent;
  box-shadow: var(--glow-orange);
}

.entry-card:hover .entry-icon svg {
  stroke: #fff;
}

.entry-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.4;
}

.entry-card p {
  font-size: 14.5px;
  color: var(--color-text-sub);
  line-height: 1.75;
  margin-bottom: 16px;
  flex: 1;
}

.entry-card .arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-sub);
}

.entry-card .arrow-link svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.3s ease;
}

.entry-card:hover .arrow-link {
  color: var(--color-accent);
}

.entry-card:hover .arrow-link svg {
  transform: translateX(4px);
}

/* ===== 精选指南 ===== */
.guide-section {
  padding: var(--space-section) clamp(20px, 4vw, 48px) 0;
}

.guide-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.guide-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: rgba(0, 229, 160, 0.2);
}

.guide-card .cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.guide-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.guide-card .cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 10, 20, 0.35), transparent 60%);
}

.guide-card .card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-brand);
  padding: 4px 12px;
  border-radius: 999px;
  box-shadow: var(--glow-orange);
}

.guide-card .card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-card .card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.5;
}

.guide-card .card-body p {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.75;
  flex: 1;
}

.guide-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-sub);
}

.guide-card .card-link svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.3s ease;
}

.guide-card:hover .card-link {
  color: #FF6B35;
}

.guide-card:hover .card-link svg {
  transform: translateX(4px);
}

/* ===== 常用链接 ===== */
.quick-section {
  padding: var(--space-section) clamp(20px, 4vw, 48px) 0;
}

.quick-links-wrap {
  max-width: 720px;
  margin: 40px auto 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 10px 28px;
  overflow: hidden;
}

.quick-links-wrap ul {
  list-style: none;
}

.quick-links-wrap li {
  border-bottom: 1px solid var(--color-border);
}

.quick-links-wrap li:last-child {
  border-bottom: none;
}

.quick-links-wrap a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-sub);
  transition: var(--transition);
  gap: 16px;
}

.quick-links-wrap a svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--color-text-dim);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: var(--transition);
  flex-shrink: 0;
}

.quick-links-wrap a:hover {
  color: var(--color-text);
  padding-left: 16px;
  background: rgba(255, 255, 255, 0.02);
}

.quick-links-wrap a:hover svg {
  stroke: #FF6B35;
  transform: translateX(4px);
}

.quick-link-num {
  font-size: 12px;
  color: var(--color-text-dim);
  font-family: inherit;
  letter-spacing: 1px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: var(--space-section) clamp(20px, 4vw, 48px) 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: var(--shadow-card);
}

.faq-question {
  width: 100%;
  height: auto;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  position: relative;
  background: transparent;
  border: none;
  text-align: left;
  gap: 12px;
  touch-action: manipulation;
}

.faq-question::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: var(--gradient-brand);
  border-radius: 0 3px 3px 0;
  opacity: 0;
  transition: var(--transition);
}

.faq-item.open .faq-question::before {
  opacity: 1;
}

.faq-icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-text-sub);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.faq-icon::before {
  width: 12px;
  height: 2px;
  top: 8px;
  left: 3px;
}

.faq-icon::after {
  width: 2px;
  height: 12px;
  top: 3px;
  left: 8px;
}

.faq-item.open .faq-icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.faq-item.open .faq-icon::before {
  background: #FF6B35;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.35s ease;
  padding: 0 20px;
  color: var(--color-text-sub);
  font-size: 14.5px;
  line-height: 1.85;
  opacity: 0;
}

.faq-item.open .faq-answer {
  max-height: 320px;
  padding: 0 20px 18px;
  opacity: 1;
}

/* ===== 返回首页 CTA ===== */
.back-cta-section {
  padding: var(--space-section) clamp(20px, 4vw, 48px) var(--space-section);
  text-align: center;
}

.back-cta-inner {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  position: relative;
  overflow: hidden;
}

.back-cta-inner::before {
  content: '';
  position: absolute;
  left: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.14), transparent 70%);
  pointer-events: none;
}

.back-cta-inner::after {
  content: '';
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.1), transparent 70%);
  pointer-events: none;
}

.back-cta-inner > * {
  position: relative;
  z-index: 1;
}

.back-cta-inner h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.back-cta-inner p {
  font-size: 15px;
  color: var(--color-text-sub);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 40px;
  border-radius: 999px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  box-shadow: var(--glow-orange);
  transition: var(--transition);
  touch-action: manipulation;
  animation: breath-glow 2.5s ease-in-out infinite alternate;
}

@keyframes breath-glow {
  0% {
    box-shadow: 0 0 18px rgba(255, 107, 53, 0.3);
  }
  100% {
    box-shadow: 0 0 30px rgba(255, 46, 126, 0.45);
  }
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 32px;
  border-radius: 999px;
  background: transparent;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--color-border-strong);
  transition: var(--transition);
  touch-action: manipulation;
}

.btn-secondary:hover {
  border-color: #FF6B35;
  color: #FF6B35;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--color-bg-side);
  border-top: 1px solid var(--color-border);
  width: 100%;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px clamp(20px, 4vw, 48px) 40px;
}

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

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.8;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: var(--color-text-sub);
}

.footer-col ul a:hover {
  color: #FF6B35;
  padding-left: 4px;
}

.compliance-note {
  font-size: 13px;
  color: var(--color-text-dim);
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px clamp(20px, 4vw, 48px);
  text-align: center;
  font-size: 13px;
  color: var(--color-text-dim);
}

/* ===== 响应式断点 ===== */
@media (max-width: 1200px) {
  .entry-card {
    padding: 28px 30px 28px 26px;
  }
}

@media (max-width: 1024px) {
  .side-nav {
    display: none;
  }

  .main-wrapper {
    margin-left: 0;
  }

  .mobile-header {
    display: flex;
  }

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

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

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .page-banner {
    min-height: 300px;
    padding: 56px 20px 48px;
  }

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

  .guide-cards {
    grid-template-columns: 1fr;
  }

  .entry-card {
    min-height: 0;
    padding: 24px 24px 24px 24px;
  }

  .entry-card .step-num {
    top: 20px;
    right: 20px;
  }

  .section-title-wrap h2 {
    font-size: 24px;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 48px;
  }

  .back-cta-inner {
    padding: 36px 24px;
  }

  .btn-primary {
    width: 100%;
  }

  .btn-secondary {
    width: 100%;
    margin-top: 12px;
  }
}

@media (max-width: 480px) {
  .mobile-header {
    padding: 0 16px;
  }

  .mobile-menu {
    padding: 16px;
  }

  .entry-card {
    padding: 20px;
  }

  .entry-card h3 {
    font-size: 18px;
  }

  .entry-card p {
    font-size: 14px;
  }

  .quick-links-wrap {
    padding: 6px 16px;
  }

  .quick-links-wrap a {
    padding: 14px 6px;
  }

  .faq-question {
    font-size: 14px;
    padding: 12px 16px;
  }

  .faq-answer {
    padding: 0 16px;
    font-size: 14px;
  }

  .faq-item.open .faq-answer {
    padding: 0 16px 16px;
  }

  .footer-top {
    padding: 40px 20px 32px;
  }
}