/* roulang page: index */
:root{
    --paper:#F4F2EA;
    --surface:#FFFEF8;
    --ink:#12140F;
    --muted:#5E6259;
    --line:#DEDCCF;
    --line-heavy:#B7B4A6;
    --accent:#C7F045;
    --accent-ink:#101600;
    --dark:#151810;
    --dark-soft:#21261A;
    --radius:20px;
    --radius-sm:8px;
    --shadow-sm:0 2px 0 rgba(0,0,0,0.02);
    --shadow-lg:0 18px 40px -22px rgba(0,0,0,0.24);
    --maxw:1240px;
    --font-ui:"HarmonyOS Sans SC","MiSans","Noto Sans CJK SC","PingFang SC","Microsoft YaHei",sans-serif;
    --font-num:"Inter","DIN Alternate","Roboto Mono",ui-monospace,monospace;
    --ease:cubic-bezier(.25,.1,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    background:var(--paper);
    color:var(--ink);
    font-family:var(--font-ui);
    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;transition:color .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),opacity .25s var(--ease)}
button,input,select,textarea{font:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding-left:40px;padding-right:40px}
.section-pad{padding-top:clamp(76px,10vw,124px);padding-bottom:clamp(76px,10vw,124px)}
/* 滚动显现 */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important}
    .reveal{opacity:1;transform:none}
}
/* 顶部导航 */
.site-header{
    position:sticky;top:0;z-index:90;
    background:rgba(244,242,234,.94);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
}
.header-inner{
    display:flex;align-items:center;justify-content:space-between;
    height:72px;
}
.brand{display:flex;align-items:baseline;gap:10px;line-height:1;padding:8px 0}
.brand-mark{font-size:25px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.brand-sub{font-size:12px;color:var(--muted);border-left:1px solid var(--line-heavy);padding-left:10px;font-weight:400;letter-spacing:.04em}
.site-nav{display:flex;align-items:center;gap:0}
.site-nav a{
    position:relative;
    font-size:14.5px;
    color:var(--ink);
    padding:8px 4px;
    margin:0 13px;
    font-weight:500;
    white-space:nowrap;
    opacity:.72;
    transition:opacity .2s var(--ease);
}
.site-nav a:hover{opacity:1}
.site-nav a.active,.site-nav a.current{opacity:1}
.site-nav a.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-5px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--accent-ink);margin-right:6px;vertical-align:1px;opacity:0;transition:opacity .2s}
.site-nav a:hover .nav-dot,.site-nav a.active .nav-dot{opacity:1}
.header-entry{
    font-size:13.5px;font-weight:600;color:var(--accent-ink);background:var(--accent);
    padding:10px 18px;border-radius:100px;display:inline-flex;align-items:center;gap:6px;
}
.header-entry:hover{background:var(--dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px -12px rgba(0,0,0,.4)}
.menu-toggle{display:none;background:none;border:0;width:44px;height:44px;align-items:center;justify-content:center;cursor:pointer}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
    content:"";display:block;width:22px;height:1.5px;background:var(--ink);position:relative;transition:all .3s var(--ease);
}
.menu-toggle span::before{position:absolute;top:-7px}
.menu-toggle span::after{position:absolute;top:7px}
@media (max-width:1180px){
    .site-nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--line);padding:18px 20px 28px;flex-direction:column;align-items:flex-start}
    .site-nav.open{display:flex}
    .site-nav a{width:100%;margin:0;padding:13px 4px;border-bottom:1px solid var(--line)}
    .site-nav a.active::after{display:none}
    .site-nav a.active{color:var(--ink);border-left:3px solid var(--accent);padding-left:8px}
    .site-nav a .nav-dot{opacity:1}
    .menu-toggle{display:inline-flex}
    .header-entry{margin-left:auto;margin-right:12px}
}
/* hero */
.hero{
    position:relative;background:var(--dark);color:#FFF;overflow:hidden;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
    padding-top:clamp(96px,12vw,150px);padding-bottom:clamp(72px,8vw,108px);
    border-bottom:6px solid var(--accent);
}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(21,24,16,.96) 30%,rgba(21,24,16,.74) 65%,rgba(21,24,16,.45));z-index:1;}
.hero .container{position:relative;z-index:3}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.14em;
    color:var(--accent);text-transform:uppercase;padding:8px 14px;border:1px solid rgba(199,240,69,.38);border-radius:100px;
    background:rgba(199,240,69,.06);margin-bottom:26px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero h1{
    font-size:clamp(40px,5.8vw,72px);line-height:1.08;font-weight:800;letter-spacing:-.02em;margin-bottom:22px;
}
.hero h1 .line-br{display:block}
.hero-copy{max-width:720px}
.hero-sub{
    font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.76);max-width:610px;margin-bottom:36px;
}
.hero-sub strong{color:#fff;font-weight:600}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 28px;border-radius:100px;font-size:14.5px;font-weight:600;
    border:1.6px solid transparent;cursor:pointer;transition:all .25s var(--ease);text-align:center;
}
.btn:focus-visible{outline:3px solid rgba(199,240,69,.65);outline-offset:2px}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);box-shadow:0 8px 22px -10px rgba(199,240,69,.4)}
.btn-primary:hover{background:#d8ff5f;border-color:#d8ff5f;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-light:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn-outline{border-color:rgba(255,255,255,.45);color:#fff;background:transparent}
.btn-outline:hover{border-color:#fff;background:#fff;color:var(--ink)}
.btn-ghost{background:transparent;border-color:transparent;color:#fff;border-bottom:1px solid rgba(255,255,255,.4);border-radius:0;padding:0 4px;min-height:40px}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn .arrow{transition:transform .3s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.hero-note{display:flex;flex-wrap:wrap;gap:28px;list-style:none;margin:0;padding:0}
.hero-note li{position:relative;padding-left:14px;font-size:13px;color:rgba(255,255,255,.68)}
.hero-note li::before{content:"";position:absolute;left:0;top:.6em;width:4px;height:4px;border-radius:50%;background:var(--accent)}
.hero-visual{position:relative}
.hero-visual .visual-main{
    border-radius:24px;border:1px solid rgba(255,255,255,.16);overflow:hidden;box-shadow:0 32px 70px -28px rgba(0,0,0,.8);
}
.hero-visual .visual-main img{width:100%;height:340px;object-fit:cover}
.visual-float{
    position:absolute;left:-34px;bottom:-28px;background:var(--surface);color:var(--ink);border-radius:var(--radius);
    padding:18px 22px 16px;box-shadow:var(--shadow-sm);min-width:180px;
}
.visual-float .num{font-family:var(--font-num);font-size:30px;color:var(--accent-ink);font-weight:700;line-height:1.1}
.visual-float .label{font-size:12px;color:var(--muted)}
@media(max-width:1100px){
    .hero-grid{grid-template-columns:1fr;gap:44px}
    .visual-float{left:10px;bottom:-18px}
}
/* 通用标题 */
.section-kicker{
    display:flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin-bottom:15px;
}
.section-kicker::before{content:"";width:26px;height:2px;background:var(--accent-ink)}
.sec-title{font-size:clamp(28px,4vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.18;margin-bottom:16px}
.sec-desc{font-size:15px;color:var(--muted);max-width:710px;line-height:1.8}
.sec-head{margin-bottom:48px}
/* 模块 1 路径分类卡 */
.path-section{background:var(--surface);border-bottom:1px solid var(--line)}
.path-card-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.path-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px 28px;
    position:relative;transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
    display:flex;flex-direction:column;
}
.path-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--ink)}
.path-num{
    font-family:var(--font-num);font-size:13px;color:var(--muted);letter-spacing:.18em;margin-bottom:18px;
    display:flex;align-items:center;gap:8px;
}
.path-num::after{content:"";flex:1;height:1px;background:var(--line)}
.path-card h3{font-size:22px;margin-bottom:12px;font-weight:700;line-height:1.35}
.path-card p{font-size:14px;color:var(--muted);margin-bottom:22px;flex-grow:1}
.path-card .card-link{
    display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px solid transparent;width:fit-content;
}
.path-card .card-link:hover{border-color:var(--ink);color:var(--ink)}
.path-card .card-link .arrow{opacity:.5;transition:transform .25s var(--ease),opacity .25s}
.path-card .card-link:hover .arrow{transform:translateX(4px);opacity:1}
.path-icon{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:var(--paper);border:1px solid var(--line);margin-bottom:20px}
.path-icon svg{width:22px;height:22px;stroke:var(--accent-ink)}
@media(max-width:1024px){.path-card-wrap{grid-template-columns:1fr 1fr}.path-card:last-child{grid-column:1/-1}}
@media(max-width:700px){.path-card-wrap{grid-template-columns:1fr}.path-card:last-child{grid-column:auto}}
/* 步骤区 */
.steps-wrap{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.step-list{list-style:none;margin:0;padding:0;counter-reset:step}
.step-item{
    display:grid;grid-template-columns:72px 1fr;gap:20px;padding:24px 0;border-bottom:1px solid var(--line);align-items:flex-start;counter-increment:step;
}
.step-item:last-child{border-bottom:0}
.step-index{
    width:58px;height:58px;border-radius:18px;background:var(--dark);color:#fff;display:flex;align-items:center;justify-content:center;
    font-family:var(--font-num);font-size:20px;font-weight:700;position:relative;letter-spacing:.02em;
}
.step-index i{position:absolute;right:-5px;bottom:-5px;width:16px;height:16px;border-radius:50%;background:var(--accent)}
.step-content h3{font-size:20px;margin-bottom:8px;font-weight:700}
.step-content p{font-size:14px;color:var(--muted);max-width:440px}
.steps-img{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line);}
.steps-img img{width:100%;height:520px;object-fit:cover}
.steps-img::after{content:"访问步骤导览";position:absolute;bottom:14px;left:14px;background:rgba(244,242,234,.92);color:var(--ink);font-size:12px;font-weight:500;padding:8px 14px;border-radius:100px;border:1px solid var(--line)}
@media(max-width:1024px){.steps-wrap{grid-template-columns:1fr;gap:44px}.steps-img img{height:360px}}
/* 对比表 */
.compare-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.compare-intro{
    display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:end;margin-bottom:40px;
}
.compare-recommend{
    background:var(--accent);color:var(--accent-ink);padding:20px 22px;border-radius:16px;font-size:14px;line-height:1.65;
}
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:20px;background:var(--surface);margin-bottom:18px}
.compare-table{width:100%;min-width:920px;border-collapse:collapse;background:var(--surface);border-radius:20px;overflow:hidden;font-size:14.5px}
.compare-table th,.compare-table td{padding:18px 20px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.compare-table thead th{background:var(--paper);font-weight:600;color:var(--muted);font-size:13px;letter-spacing:.03em}
.compare-table .feature-col{font-weight:600;width:28%}
.compare-table .recommend-col{
    background:var(--dark);color:#fff;border-left:1px solid var(--dark-soft);
}
.compare-table .recommend-col .plan-mark{
    color:var(--accent);font-size:12px;font-weight:600;
}
.compare-table tbody tr:last-child td{border-bottom:0}
.plan-name{font-weight:800;font-size:17px}
.plan-price{font-family:var(--font-num);font-size:14px;color:var(--muted);margin-top:4px}
.compare-table .recommend-col .plan-price{color:rgba(255,255,255,.7)}
.compare-tip{font-size:12.5px;color:var(--muted);text-align:right;margin-top:6px}
@media(max-width:1024px){.compare-intro{grid-template-columns:1fr;gap:24px}}
/* 夜间横条 + 倒计时 */
.window-band{background:var(--dark);color:#fff;border-radius:0;overflow:hidden;position:relative;}
.window-band::after{content:"";position:absolute;width:460px;height:460px;right:-180px;top:-180px;border-radius:50%;background:radial-gradient(circle,rgba(199,240,69,.22),transparent 70%)}
.window-band .container{padding-top:74px;padding-bottom:74px;display:flex;justify-content:space-between;gap:20px;align-items:center;flex-wrap:wrap}
.window-copy .kicker{color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.12em;margin-bottom:12px;display:block}
.window-copy h2{font-size:clamp(26px,4vw,42px);font-weight:800;margin-bottom:12px;letter-spacing:-.01em}
.window-copy p{color:rgba(255,255,255,.7);font-size:14px;max-width:560px}
.window-timer{display:flex;align-items:center;gap:14px;padding:18px 10px}
.timer-block{text-align:center;min-width:78px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:14px 12px 10px;
}
.timer-block b{font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;color:#fff}
.timer-block span{display:block;font-size:11px;color:rgba(255,255,255,.55);margin-top:8px}
.window-timer-sep{font-family:var(--font-num);font-size:24px;color:var(--accent)}
@media(max-width:720px){
    .window-band .container{flex-direction:column;align-items:flex-start;gap:24px}
}
/* 最新资讯 */
.latest-section{background:var(--paper)}
.latest-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:44px}
.latest-head .sec-head{margin-bottom:0}
.latest-link{margin-bottom:6px}
.latest-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:32px}
.post-feature{
    background:var(--dark);color:#fff;border-radius:22px;overflow:hidden;display:flex;flex-direction:column;min-height:460px;
    transition:transform .3s var(--ease),box-shadow .3s var(--ease);position:relative;
}
.post-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.post-feature .post-cover{height:190px;overflow:hidden}
.post-feature .post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.post-feature:hover .post-cover img{transform:scale(1.04)}
.post-feature .feature-body{display:flex;flex-direction:column;padding:28px 28px 24px;flex:1}
.post-feature .post-cat-tag{
    display:inline-block;width:fit-content;font-size:12px;color:var(--accent);border:1px solid rgba(199,240,69,.36);padding:6px 12px;border-radius:100px;margin-bottom:16px;background:rgba(199,240,69,.05);
}
.post-feature h3{font-size:23px;line-height:1.4;font-weight:700;margin-bottom:12px}
.post-feature p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;margin-bottom:20px;flex-grow:1}
.post-meta{font-size:12.5px;color:rgba(255,255,255,.5);font-family:var(--font-num);display:flex;align-items:center;gap:10px}
.post-meta .arrow{margin-left:auto;color:var(--accent)}
.post-list-item{
    display:flex;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);position:relative;transition:background .25s,padding .3s;
}
.post-list-item:first-child{padding-top:0}
.post-list-item:last-child{border-bottom:0}
.post-list-item:hover{padding-left:8px}
.post-list-num{font-family:var(--font-num);font-size:13px;color:var(--line-heavy);min-width:34px;font-weight:500}
.post-list-main{min-width:0;flex:1}
.post-list-meta{font-size:12px;color:var(--muted);font-family:var(--font-num);margin-bottom:6px;display:flex;gap:10px}
.post-list-cat{color:var(--muted);border:1px solid var(--line);border-radius:100px;padding:2px 10px;font-size:11px}
.post-list-title{font-size:16.5px;font-weight:700;line-height:1.4;margin-bottom:4px;color:var(--ink)}
.post-list-summary{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.post-list-item .post-arrow{color:var(--line-heavy);margin-left:8px}
.post-list-item:hover .post-arrow{color:var(--accent-ink);transform:translateX(4px)}
.empty-state{
    grid-column:1/-1;border:1px dashed var(--line-heavy);background:var(--surface);padding:56px 20px;text-align:center;border-radius:22px;color:var(--muted);font-size:14px;
}
.empty-state i{display:block;width:38px;height:38px;margin:0 auto 14px;border:1px solid var(--line);border-radius:50%;position:relative}
.empty-state i::after{content:"";position:absolute;width:7px;height:7px;border-top:1.5px solid var(--muted);border-right:1.5px solid var(--muted);transform:rotate(135deg);left:15px;top:12px}
@media(max-width:980px){.latest-grid{grid-template-columns:1fr}.post-feature{min-height:auto}}
/* 反馈表单 */
.contact-section{background:var(--surface);border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start}
.contact-guide h2{font-size:clamp(26px,4vw,38px);margin-bottom:18px;font-weight:800}
.contact-guide >p{color:var(--muted);font-size:14.5px;margin-bottom:28px;line-height:1.9}
.contact-points{list-style:none;margin:0 0 32px;padding:0}
.contact-points li{position:relative;padding:16px 0 16px 30px;border-bottom:1px solid var(--line);font-size:14.5px}
.contact-points li::before{content:"";position:absolute;left:0;top:24px;width:12px;height:12px;border:1px solid var(--accent-ink);border-radius:50%;background:var(--accent)}
.contact-points li strong{display:block;font-weight:600;margin-bottom:2px}
.contact-points li span{color:var(--muted);font-size:13px}
.form-card{
    background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:clamp(28px,4vw,44px);box-shadow:var(--shadow-sm);
}
.form-card .form-title{font-size:22px;font-weight:700;margin-bottom:26px;display:flex;align-items:center;gap:12px}
.form-card .form-title::before{content:"";width:28px;height:1.5px;background:var(--accent)}
.field-group{margin-bottom:20px}
.field-group label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field-group input,.field-group select,.field-group textarea{
    width:100%;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink);padding:13px 16px;font-size:14.5px;transition:border-color .2s,box-shadow .2s;
}
.field-group textarea{min-height:120px;resize:vertical}
.field-group input:focus,.field-group select:focus,.field-group textarea:focus{outline:none;border-color:var(--accent-ink);box-shadow:0 0 0 3px rgba(199,240,69,.28)}
.form-btn{margin-top:8px;width:100%;min-height:54px;justify-content:center;background:var(--dark);color:#fff;font-size:15px}
.form-btn:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.form-note{margin-top:12px;font-size:12px;color:var(--muted);text-align:center}
.form-status{margin-top:16px;display:none;padding:10px 14px;background:var(--paper);border:1px solid var(--line);border-radius:8px;font-size:14px}
@media(max-width:1000px){.contact-grid{grid-template-columns:1fr;gap:38px}}
/* FAQ */
.faq-section{background:var(--paper)}
.faq-grid{max-width:920px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:24px;cursor:pointer;list-style:none;
    padding:22px 6px;font-size:16px;font-weight:600;transition:padding .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent-ink)}
.faq-item[open] summary{padding:26px 6px 18px}
.faq-sign{
    width:34px;height:34px;min-width:34px;border-radius:50%;border:1px solid var(--line-heavy);display:flex;align-items:center;justify-content:center;position:relative;transition:all .3s var(--ease);
}
.faq-sign::before{content:"";width:12px;height:2px;background:currentColor}
.faq-sign::after{content:"";height:12px;width:2px;background:currentColor;position:absolute;transition:opacity .2s}
.faq-item[open] .faq-sign{background:var(--accent);border-color:var(--accent)}
.faq-item[open] .faq-sign::after{opacity:0}
.faq-body{padding:0 44px 24px 6px;color:var(--muted);font-size:14px;line-height:1.85;max-width:820px}
/* CTA底行 */
.cta-final{
    background:var(--paper);padding-top:30px;padding-bottom:80px;border-top:0;
}
.final-strip{
    background:var(--dark);color:#fff;border-radius:28px;display:flex;justify-content:space-between;align-items:center;
    flex-wrap:wrap;gap:24px;padding:44px 48px;position:relative;overflow:hidden;
}
.final-strip::before{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(199,240,69,.35);border-radius:50%;right:80px;top:-130px}
.final-strip h2{font-size:clamp(22px,3.5vw,38px);margin-bottom:6px;line-height:1.2;font-weight:800}
.final-strip p{color:rgba(255,255,255,.62);font-size:14px;margin:0}
.final-strip .btn{z-index:2}
/* footer */
.site-footer{background:var(--paper);border-top:1px solid var(--line)}
.footer-top{padding:66px 0 44px;display:grid;grid-template-columns:1.3fr 2fr;gap:48px}
.footer-brand .brand{font-size:22px}
.footer-brand p{font-size:13.5px;line-height:1.9;color:var(--muted);max-width:360px;margin-top:18px}
.footer-col-title{font-size:14px;font-weight:500;color:var(--ink);margin-bottom:18px;letter-spacing:.04em}
.footer-links{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.footer-links a{font-size:14px;color:var(--muted);line-height:1.9;display:flex;align-items:center;gap:8px}
.footer-links a::before{content:"";width:0;height:1.4px;background:var(--accent);transition:width .2s;display:inline-block}
.footer-links a:hover{color:var(--ink)}
.footer-links a:hover::before{width:12px}
.footer-bottom{padding:22px 0 36px;border-top:1px solid var(--line);display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap;color:var(--muted);font-size:13px}
.footer-bottom .cr{font-family:var(--font-num);font-size:12px}
@media(max-width:900px){
    .footer-top{grid-template-columns:1fr}
    .footer-links{grid-template-columns:repeat(2,1fr)}
    .container{padding-left:28px;padding-right:28px}
}
@media(max-width:700px){
    .container{padding-left:20px;padding-right:20px}
    .footer-links{grid-template-columns:1fr 1fr}
    .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root {
  --paper: #F4F2EA;
  --surface: #FFFEF8;
  --ink: #12140F;
  --muted: #5E6259;
  --line: #DEDCCF;
  --line-heavy: #B7B4A6;
  --accent: #C7F045;
  --accent-ink: #101600;
  --dark: #151810;
  --dark-soft: #21261A;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 2px 0 rgba(0,0,0,0.02), 0 16px 40px -26px rgba(0,0,0,0.16);
  --shadow-over: 0 18px 40px -22px rgba(0,0,0,0.24);
  --ease: cubic-bezier(.22,.61,.36,1);
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol {
  margin-top: 0;
}

ul {
  list-style: none;
  margin-bottom: 0;
}

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

img {
  display: block;
  max-width: 100%;
  border: 0;
}

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

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 242, 234, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex-shrink: 0;
}

.brand-mark {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--ink);
}

.brand-sub {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease);
  white-space: nowrap;
}

.nav-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: transparent;
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.nav-item:hover,
.nav-item.active {
  color: var(--ink);
}

.nav-item.active {
  border-bottom-color: var(--accent);
}

.nav-item.active .nav-dot {
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(199, 240, 69, 0.25);
}

.nav-item:hover .nav-dot {
  background: var(--accent);
}

.menu-toggle {
  display: none;
  margin: 0;
  padding: 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Shared Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
  cursor: pointer;
  outline: none;
}

.btn:focus-visible,
.nav-item:focus-visible,
.entrance-line:focus-visible,
.text-arrow:focus-visible,
.footer-links a:focus-visible,
.faq-head summary:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--accent);
  color: var(--accent-ink);
  transform: translateY(-2px);
}

.btn-ghost {
  border-color: var(--line-heavy);
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  transform: translateY(-2px);
}

.btn-light {
  background: var(--paper);
  color: var(--ink);
}

.btn-light:hover {
  background: var(--accent);
  color: var(--accent-ink);
  transform: translateY(-2px);
}

.lead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.text-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--ink);
  min-height: 44px;
  padding: 6px 0;
}

.text-arrow i {
  font-style: normal;
  transition: transform 0.25s var(--ease);
}

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

/* Shared section title system */
.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.kicker, .kicker-sm {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.kicker::before,
.kicker-sm::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.section-intro {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 0;
}

/* Main Page Lead / Hero */
.main {
  overflow: clip;
}

.lead-section {
  padding: clamp(68px, 8vw, 110px) 0 clamp(48px, 6vw, 70px);
  background:
    radial-gradient(circle at 12% 20%, rgba(199, 240, 69, 0.12), transparent 24%),
    var(--paper);
}

.hero-grid {
  align-items: center;
}

.lead-copy {
  padding-right: 8px;
}

.lead-copy .kicker {
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 26px;
}

.hero-title .title-key {
  display: block;
  font-size: 0.42em;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--muted);
  margin-bottom: 8px;
  line-height: 1.2;
}

.lead-description {
  max-width: 540px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  margin-bottom: 8px;
}

.lead-actions {
  margin-top: 34px;
}

.lead-visual-wrap {
  position: relative;
  margin-left: 6%;
}

.lead-visual-wrap::before {
  content: "";
  position: absolute;
  right: 4%;
  bottom: -4%;
  width: 62%;
  height: 72%;
  background: var(--accent);
  border-radius: 26px;
  z-index: 0;
  opacity: 0.85;
}

.lead-visual-frame {
  position: relative;
  z-index: 1;
  border-radius: 24px;
  overflow: hidden;
  background: var(--dark-soft);
  box-shadow: var(--shadow-over);
}

.lead-visual-frame img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
  transform: scale(1.001);
}

.lead-visual-cap {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 2;
  background: rgba(21, 24, 16, 0.82);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.lead-visual-cap strong {
  color: var(--accent);
  font-weight: 600;
}

/* Process path */
.process-section {
  padding: clamp(70px, 9vw, 112px) 0 clamp(70px, 8vw, 100px);
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.path-block {
  border-top: 1px solid var(--line);
}

.path-item {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
  gap: 28px;
  padding: 34px 0;
  transition: background 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.path-item:hover {
  padding-left: 10px;
  background: linear-gradient(to right, rgba(199,240,69,0.06), transparent 55%);
}

.path-index {
  font-family: "Inter", "DIN Alternate", "Roboto Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--line-heavy);
}

.path-index span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-top: 4px;
}

.path-body h3 {
  font-size: 21px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 8px;
}

.path-body p {
  max-width: 760px;
  color: var(--muted);
  margin-bottom: 0;
  font-size: 15px;
  line-height: 1.85;
}

/* Status band */
.status-band {
  position: relative;
  background: var(--dark);
  padding: clamp(64px, 8vw, 98px) 0;
  overflow: hidden;
}

.status-band::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  pointer-events: none;
}

.status-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.eyebrow-dark {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(244,242,234,0.55);
  text-transform: uppercase;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 999px;
  padding: 8px 18px;
  font-weight: 600;
  font-size: 14px;
}

.status-chip i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-ink);
  box-shadow: 0 0 0 3px rgba(16,22,0,0.18);
}

.status-copy {
  color: rgba(244, 242, 234, 0.78);
  font-size: 15px;
  line-height: 1.9;
  margin: 16px 0 0;
  max-width: 680px;
}

.status-copy strong {
  color: #fff;
  font-weight: 600;
}

/* Split navigation content */
.split-section {
  padding: clamp(70px, 9vw, 112px) 0;
  background: var(--paper);
}

.split-left {
  position: relative;
}

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

.split-left p {
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 28px;
}

.mini-entry-list {
  margin: 0;
  padding: 0;
}

.mini-entry-list li {
  padding: 10px 0 6px;
  border-bottom: 1px solid var(--line);
}

.mini-entry-list li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 500;
  font-size: 14px;
  min-height: 32px;
  transition: color 0.2s var(--ease), gap 0.2s var(--ease);
}

.mini-entry-list li a::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--line-heavy);
}

.mini-entry-list li a:hover {
  color: var(--ink);
  gap: 12px;
}

.mini-entry-list li a:hover::before {
  background: var(--accent);
}

.entrance-links {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.entrance-line {
  display: grid;
  grid-template-columns: 64px 180px minmax(0, 1fr) 40px;
  align-items: center;
  min-height: 84px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease), padding 0.25s var(--ease);
  gap: 14px;
  padding: 12px 4px;
}

.entrance-line:last-child {
  border-bottom: 0;
}

.entrance-line:hover {
  background: linear-gradient(to right, rgba(199, 240, 69, 0.10), transparent 62%);
  padding-left: 12px;
}

.entrance-line .line-number {
  font-family: "Inter", "DIN Alternate", "Roboto Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--line-heavy);
  letter-spacing: 0.04em;
}

.entrance-line strong {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
}

.entrance-line p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}

.entrance-line .go-arrow {
  text-align: right;
  font-family: "Inter", sans-serif;
  color: var(--muted);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.entrance-line:hover .go-arrow {
  color: var(--ink);
  transform: translateX(4px);
}

/* FAQ section */
.faq-section {
  padding: clamp(70px, 9vw, 110px) 0;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.faq-wrap {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 8px 22px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  transition: color 0.2s var(--ease);
}

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

.faq-item summary:hover {
  color: var(--ink);
}

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line-heavy);
  font-size: 18px;
  line-height: 1;
  color: var(--muted);
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}

.faq-item[open] summary::after {
  transform: rotate(135deg);
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.faq-answer {
  padding: 0 44px 26px 8px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  max-width: 820px;
}

.faq-answer p {
  margin-bottom: 0;
}

/* Bottom line CTA */
.bottom-cta {
  padding: clamp(56px, 8vw, 96px) 0;
  background: var(--paper);
}

.cta-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(30px, 5vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-card);
}

.cta-panel h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 10px;
}

.cta-panel p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 0;
}

/* Footer */
.site-footer {
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.site-footer .container {
  padding-top: 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 64px;
  padding: 54px 0 40px;
}

.footer-brand {
  max-width: 560px;
}

.footer-brand p {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.footer-links li {
  min-width: calc(50% - 22px);
  margin: 0;
}

.footer-links a {
  display: inline-block;
  position: relative;
  padding: 8px 0 8px 8px;
  color: var(--muted);
  font-size: 14px;
  min-height: 36px;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.footer-links a:hover {
  color: var(--ink);
  transform: translateX(2px);
}

.footer-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: transparent;
  transition: background 0.2s var(--ease);
}

.footer-links a:hover::before {
  background: var(--accent);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding: 24px 0;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .container {
    padding-left: 28px;
    padding-right: 28px;
  }

  .site-nav {
    gap: 20px;
  }

  .nav-item {
    font-size: 14px;
  }

  .brand-mark {
    font-size: 20px;
  }

  .brand-sub {
    display: none;
  }

  .header-inner {
    height: 66px;
  }

  .hero-grid .cell {
    width: 100% !important;
    max-width: 100%;
  }

  .lead-visual-wrap {
    margin: 50px 0 0;
  }

  .lead-visual-frame img {
    min-height: 320px;
  }

  .status-inner {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 640px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

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

  .site-nav {
    position: fixed;
    top: 66px;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 20px 18px;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.24s var(--ease), transform 0.24s var(--ease), visibility 0.24s var(--ease);
    box-shadow: 0 12px 24px -16px rgba(0,0,0,0.1);
    z-index: 90;
  }

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

  .site-nav .nav-item {
    width: 100%;
    padding: 0 8px;
    min-height: 48px;
    border-bottom: 1px solid var(--line);
    justify-content: flex-start;
    font-size: 15px;
  }

  .site-nav .nav-item:last-child {
    border-bottom: 0;
  }

  .site-nav .nav-item.active {
    background: rgba(199, 240, 69, 0.10);
    border-radius: 12px;
  }

  .nav-item.active {
    border-bottom-color: transparent;
  }

  .hero-title {
    font-size: clamp(34px, 11vw, 48px);
  }

  .lead-section {
    padding-top: 56px;
  }

  .lead-actions .btn {
    width: 100%;
  }

  .section-head {
    margin-bottom: 30px;
  }

  .path-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 24px 0;
  }

  .path-index {
    font-size: 20px;
  }

  .entrance-line {
    grid-template-columns: 34px minmax(0, 1fr) 28px;
    align-items: start;
    padding: 18px 2px;
    gap: 10px;
  }

  .entrance-line p {
    grid-column: 2;
    margin-top: -12px;
    font-size: 13px;
    line-height: 1.7;
  }

  .entrance-line strong {
    grid-column: 2;
  }

  .entrance-line .line-number {
    grid-row: 1 / 3;
    padding-top: 3px;
  }

  .entrance-line .go-arrow {
    grid-column: 3;
    grid-row: 1;
  }

  .faq-item summary {
    font-size: 16px;
    padding: 20px 0 16px;
  }

  .faq-answer {
    padding: 0 16px 20px 4px;
  }

  .cta-panel {
    padding: 28px 22px;
  }

  .cta-panel .btn {
    width: 100%;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category2 */
:root {
        --paper: #F4F2EA;
        --surface: #FFFEF8;
        --ink: #12140F;
        --muted: #5E6259;
        --line: #DEDCCF;
        --line-heavy: #B7B4A6;
        --accent: #C7F045;
        --accent-ink: #101600;
        --dark: #151810;
        --dark-soft: #21261A;
        --radius-lg: 24px;
        --radius-md: 18px;
        --radius-sm: 8px;
        --shadow-sm: 0 2px 0 rgba(0, 0, 0, 0.02);
        --shadow-md: 0 18px 40px -22px rgba(0, 0, 0, 0.24);
        --font-cn: "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        --font-num: "Inter", "DIN Alternate", "Roboto Mono", ui-monospace, monospace;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: var(--font-cn);
        background: var(--paper);
        color: var(--ink);
        font-size: 16px;
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }

    body,
    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    ol,
    figure,
    blockquote,
    dl,
    dd {
        margin: 0;
        padding: 0;
    }

    ul,
    ol {
        list-style: none;
    }

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

    a:hover {
        color: inherit;
    }

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

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

    .container {
        max-width: 1240px;
        margin: 0 auto;
        padding-left: clamp(20px, 4vw, 40px);
        padding-right: clamp(20px, 4vw, 40px);
    }

    .section {
        padding: clamp(86px, 9vw, 128px) 0;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        height: 72px;
        background: rgba(244, 242, 234, 0.92);
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--line);
    }

    .site-header .container {
        height: 100%;
        display: flex;
        align-items: center;
        gap: 24px;
    }

    .brand {
        display: inline-flex;
        flex-direction: column;
        margin-right: auto;
        line-height: 1.2;
        min-width: 0;
    }

    .brand-mark {
        font-size: 24px;
        font-weight: 800;
        letter-spacing: -0.02em;
        color: var(--ink);
    }

    .brand-mark::after {
        content: "";
        display: inline-block;
        width: 7px;
        height: 7px;
        margin-left: 4px;
        border-radius: 50%;
        background: var(--accent);
        vertical-align: middle;
    }

    .brand-sub {
        font-size: 12px;
        color: var(--muted);
        letter-spacing: 0.04em;
    }

    .site-nav {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .site-nav a {
        display: inline-flex;
        align-items: center;
        position: relative;
        padding: 8px 13px;
        font-size: 14px;
        color: var(--muted);
        transition: color 0.2s ease;
        white-space: nowrap;
    }

    .site-nav a:not(:first-child) {
        border-left: 1px solid var(--line);
        border-radius: 0;
    }

    .site-nav .nav-dot {
        display: inline-block;
        width: 4px;
        height: 4px;
        margin-right: 9px;
        border-radius: 50%;
        background: transparent;
        transition: background 0.2s ease, box-shadow 0.2s ease;
    }

    .site-nav a:hover {
        color: var(--ink);
    }

    .site-nav a:hover .nav-dot {
        background: var(--line-heavy);
    }

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

    .site-nav a.active .nav-dot {
        background: var(--accent);
        box-shadow: 0 0 0 4px rgba(199, 240, 69, 0.28);
    }

    .site-nav a.active::after {
        content: "";
        position: absolute;
        bottom: 2px;
        left: 16px;
        right: 16px;
        height: 2px;
        background: var(--accent);
    }

    .nav-login {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 38px;
        padding: 0 15px;
        font-size: 13px;
        font-weight: 600;
        color: var(--ink);
        border: 1px solid var(--line-heavy);
        border-radius: 999px;
        background: rgba(255, 254, 248, 0.5);
        transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    }

    .nav-login:hover {
        background: var(--ink);
        border-color: var(--ink);
        color: var(--paper);
    }

    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        margin-left: 6px;
        padding: 10px 8px;
        background: transparent;
        border: 0;
        cursor: pointer;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
    }

    .nav-toggle span {
        display: block;
        height: 1px;
        width: 100%;
        background: var(--ink);
        transition: transform 0.2s ease, opacity 0.2s ease;
    }

    .page-hero {
        padding: clamp(70px, 8vw, 120px) 0 64px;
        background: var(--paper);
        position: relative;
        overflow: hidden;
    }

    .page-hero::before {
        content: "";
        position: absolute;
        top: 8%;
        right: -120px;
        width: 380px;
        height: 380px;
        border-radius: 50%;
        background: rgba(199, 240, 69, 0.12);
        pointer-events: none;
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 12px;
        letter-spacing: 0.16em;
        text-transform: uppercase;
        color: var(--muted);
        margin-bottom: 20px;
        font-family: var(--font-num);
    }

    .eyebrow-mark {
        display: inline-block;
        width: 20px;
        height: 3px;
        background: var(--accent);
        border-radius: 99px;
    }

    .hero-copy h1 {
        font-size: clamp(42px, 6vw, 72px);
        line-height: 1.08;
        letter-spacing: -0.03em;
        font-weight: 700;
        max-width: 740px;
        margin-bottom: 24px;
    }

    .lead {
        font-size: clamp(15px, 1.4vw, 18px);
        line-height: 1.8;
        color: var(--muted);
        max-width: 680px;
        margin-bottom: 34px;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 34px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 48px;
        padding: 0 28px;
        border: 1px solid transparent;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: background 0.22s ease, color 0.22s ease, border-color 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
    }

    .btn-primary {
        background: var(--ink);
        color: var(--paper);
    }

    .btn-primary:hover {
        background: var(--accent);
        color: var(--accent-ink);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    .btn-line {
        background: transparent;
        border-color: var(--line-heavy);
        color: var(--ink);
    }

    .btn-line:hover {
        background: var(--ink);
        border-color: var(--ink);
        color: var(--paper);
        transform: translateY(-2px);
    }

    .hero-visual-block {
        position: relative;
        padding-left: 10px;
    }

    .visual-figure {
        position: relative;
        border-radius: calc(var(--radius-lg) + 6px);
        overflow: hidden;
        background: var(--dark-soft);
        box-shadow: var(--shadow-sm);
        aspect-ratio: 4 / 3;
    }

    .visual-figure img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }

    .hero-visual-block:hover .visual-figure img {
        transform: scale(1.03);
    }

    .visual-caption {
        position: absolute;
        right: 16px;
        bottom: 16px;
        background: rgba(21, 24, 16, 0.82);
        color: var(--paper);
        font-size: 12px;
        padding: 8px 14px;
        border-radius: 999px;
        letter-spacing: 0.04em;
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .hero-points {
        display: flex;
        flex-wrap: wrap;
        gap: 36px;
        margin-top: 44px;
        padding-top: 26px;
        border-top: 1px solid var(--line);
    }

    .hero-points span {
        font-family: var(--font-num);
        font-size: 12px;
        color: var(--muted);
        margin-right: 8px;
        letter-spacing: 0.1em;
    }

    .hero-points div {
        font-size: 14px;
        color: var(--ink);
    }

    .section-head {
        max-width: 820px;
        margin-bottom: clamp(40px, 5vw, 60px);
    }

    .section-no {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 26px;
        padding: 0 12px;
        border-radius: 999px;
        background: var(--accent);
        color: var(--accent-ink);
        font-family: var(--font-num);
        font-size: 12px;
        letter-spacing: 0.12em;
        margin-bottom: 16px;
    }

    .section-head h2 {
        font-size: clamp(30px, 4vw, 46px);
        font-weight: 700;
        line-height: 1.16;
        letter-spacing: -0.02em;
        margin: 8px 0 16px;
    }

    .section-head p {
        color: var(--muted);
        font-size: 15px;
        line-height: 1.85;
        max-width: 720px;
    }

    .section-sub {
        color: var(--muted);
        font-size: 14px;
        line-height: 1.85;
        max-width: 680px;
    }

    .channel-survey {
        background: var(--surface);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
    }

    .survey-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
        gap: clamp(28px, 5vw, 64px);
        align-items: stretch;
    }

    .survey-poster {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        background: var(--dark-soft);
        min-height: 380px;
        box-shadow: var(--shadow-sm);
    }

    .survey-poster img {
        width: 100%;
        height: 100%;
        min-height: 380px;
        object-fit: cover;
        transition: transform 0.6s ease;
    }

    .chart-label {
        position: absolute;
        top: 20px;
        left: 20px;
        background: rgba(255, 254, 248, 0.9);
        color: var(--ink);
        font-size: 12px;
        padding: 8px 15px;
        border-radius: 999px;
        border: 1px solid var(--line);
        box-shadow: var(--shadow-sm);
    }

    .chart-marker {
        position: absolute;
        right: 20px;
        bottom: 20px;
        background: var(--accent);
        color: var(--accent-ink);
        font-family: var(--font-num);
        font-size: 12px;
        padding: 9px 14px;
        border-radius: 999px;
        letter-spacing: 0.08em;
    }

    .survey-list {
        border-top: 1px solid var(--line);
    }

    .survey-item {
        display: grid;
        grid-template-columns: 52px 1fr 36px;
        gap: 20px;
        padding: 26px 8px 26px 0;
        border-bottom: 1px solid var(--line);
        transition: background 0.2s ease;
    }

    .survey-item:hover {
        background: rgba(199, 240, 69, 0.05);
    }

    .sno {
        font-family: var(--font-num);
        font-size: 14px;
        color: var(--ink);
        border-left: 3px solid var(--accent);
        padding-left: 12px;
        line-height: 1.4;
    }

    .sbody h3 {
        font-size: 20px;
        font-weight: 600;
        margin-bottom: 8px;
    }

    .sbody p {
        font-size: 14px;
        color: var(--muted);
        line-height: 1.75;
        max-width: 520px;
    }

    .location-tag {
        display: inline-flex;
        margin-top: 10px;
        padding: 4px 10px;
        border: 1px solid var(--line);
        border-radius: 7px;
        color: var(--muted);
        font-size: 12px;
        background: var(--paper);
    }

    .sarrow {
        text-align: center;
        color: var(--line-heavy);
        font-family: var(--font-num);
        transition: transform 0.2s ease, color 0.2s ease;
    }

    .survey-item:hover .sarrow {
        color: var(--ink);
        transform: translateX(4px);
    }

    .spec-section {
        background: var(--paper);
    }

    .spec-table-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 32px;
        flex-wrap: wrap;
        margin-bottom: 44px;
    }

    .spec-table-head .section-head {
        margin-bottom: 0;
    }

    .table-scroll {
        overflow-x: auto;
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        background: var(--surface);
        box-shadow: var(--shadow-sm);
        -webkit-overflow-scrolling: touch;
    }

    .channel-table {
        width: 100%;
        min-width: 760px;
        border-collapse: collapse;
        font-size: 14px;
    }

    .channel-table th {
        text-align: left;
        padding: 16px 24px;
        color: var(--muted);
        font-weight: 600;
        font-size: 13px;
        letter-spacing: 0.04em;
        border-bottom: 1px solid var(--line);
        background: rgba(244, 242, 234, 0.55);
        white-space: nowrap;
    }

    .channel-table td {
        padding: 19px 24px;
        border-bottom: 1px solid var(--line);
        vertical-align: top;
        line-height: 1.7;
    }

    .channel-table tbody tr:last-child td {
        border-bottom: 0;
    }

    .channel-table tbody tr {
        transition: background 0.2s ease;
    }

    .channel-table tbody tr:hover {
        background: rgba(199, 240, 69, 0.08);
    }

    .channel-table td:first-child {
        font-weight: 600;
        white-space: nowrap;
    }

    .table-scroll::-webkit-scrollbar {
        height: 8px;
    }

    .table-scroll::-webkit-scrollbar-track {
        background: var(--paper);
        border-radius: 0 0 10px 10px;
    }

    .table-scroll::-webkit-scrollbar-thumb {
        background: var(--line-heavy);
        border-radius: 10px;
    }

    .update-section {
        background: var(--dark);
        padding: 0;
    }

    .update-section .container {
        padding-top: clamp(86px, 9vw, 128px);
        padding-bottom: clamp(86px, 9vw, 128px);
    }

    .update-panel {
        display: grid;
        grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
        gap: clamp(32px, 6vw, 88px);
        align-items: center;
        background: var(--dark-soft);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-lg);
        padding: clamp(26px, 4vw, 58px);
    }

    .dark-figure {
        position: relative;
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-md);
    }

    .dark-figure img {
        width: 100%;
        min-height: 280px;
        object-fit: cover;
    }

    .dark-figure::after {
        content: "SYNC / DATA";
        position: absolute;
        left: 14px;
        bottom: 14px;
        padding: 6px 12px;
        background: var(--accent);
        color: var(--accent-ink);
        font-family: var(--font-num);
        font-size: 11px;
        letter-spacing: 0.12em;
        border-radius: 999px;
    }

    .update-copy {
        color: rgba(255, 254, 248, 0.92);
    }

    .update-copy .section-no {
        background: var(--accent);
        color: var(--accent-ink);
    }

    .update-copy h2 {
        font-size: clamp(28px, 4vw, 42px);
        line-height: 1.2;
        font-weight: 700;
        letter-spacing: -0.02em;
        margin-bottom: 18px;
        color: #fff;
    }

    .update-copy p {
        color: rgba(255, 254, 248, 0.68);
        font-size: 15px;
        line-height: 1.85;
        max-width: 560px;
        margin-bottom: 26px;
    }

    .sync-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        padding: 10px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        color: rgba(255, 254, 248, 0.8);
        font-size: 14px;
        line-height: 1.75;
    }

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

    .sync-list li::before {
        content: "";
        flex: 0 0 6px;
        width: 6px;
        height: 6px;
        margin-top: 11px;
        border-radius: 50%;
        background: var(--accent);
    }

    .route-section {
        background: var(--paper);
    }

    .route-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
    }

    .route-card {
        position: relative;
        display: block;
        min-height: 210px;
        padding: 32px 34px 34px;
        background: var(--surface);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
    }

    .route-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 58px;
        height: 3px;
        background: var(--accent);
        transition: width 0.25s ease;
    }

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

    .route-card:hover::before {
        width: 100%;
        background: var(--accent);
    }

    .route-card .card-tag {
        display: inline-block;
        padding: 4px 10px;
        border: 1px solid var(--line);
        border-radius: 999px;
        font-size: 12px;
        color: var(--muted);
        margin-bottom: 22px;
    }

    .route-card h3 {
        font-size: 22px;
        font-weight: 600;
        margin-bottom: 10px;
        line-height: 1.3;
    }

    .route-card p {
        font-size: 14px;
        color: var(--muted);
        line-height: 1.8;
        max-width: 460px;
    }

    .route-arrow {
        position: absolute;
        right: 28px;
        bottom: 28px;
        color: var(--ink);
        font-family: var(--font-num);
        font-size: 20px;
        transition: transform 0.2s ease;
    }

    .route-card:hover .route-arrow {
        transform: translate(4px, -2px);
    }

    .faq-section {
        background: var(--surface);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
    }

    .faq-wrap {
        display: grid;
        grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.5fr);
        gap: clamp(32px, 6vw, 96px);
        align-items: start;
    }

    .faq-side .section-head {
        margin-bottom: 24px;
    }

    .faq-side p {
        color: var(--muted);
        font-size: 15px;
        line-height: 1.85;
    }

    .faq-list {
        border-top: 1px solid var(--line);
    }

    details.faq-item {
        border-bottom: 1px solid var(--line);
        transition: background 0.2s ease;
    }

    details.faq-item summary {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        padding: 22px 10px 22px 0;
        cursor: pointer;
        list-style: none;
        font-size: 17px;
        font-weight: 600;
        line-height: 1.5;
        color: var(--ink);
        transition: color 0.2s ease;
    }

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

    details.faq-item summary:hover {
        color: var(--muted);
    }

    .faq-icon {
        position: relative;
        flex: 0 0 20px;
        width: 20px;
        height: 20px;
        display: inline-block;
        border: 1px solid var(--line-heavy);
        border-radius: 50%;
        transition: border-color 0.2s ease, transform 0.2s ease;
    }

    .faq-icon::before,
    .faq-icon::after {
        content: "";
        position: absolute;
        background: var(--ink);
        transition: opacity 0.2s ease;
    }

    .faq-icon::before {
        top: 9px;
        left: 5px;
        width: 8px;
        height: 1px;
    }

    .faq-icon::after {
        left: 9px;
        top: 5px;
        width: 1px;
        height: 8px;
    }

    details[open] .faq-icon {
        border-color: var(--accent);
        background: var(--accent);
    }

    details[open] .faq-icon::after {
        opacity: 0;
    }

    .faq-answer {
        padding: 0 40px 22px 0;
        color: var(--muted);
        font-size: 15px;
        line-height: 1.85;
        max-width: 760px;
    }

    .cta-section {
        background: var(--paper);
        padding-bottom: clamp(86px, 9vw, 128px);
    }

    .cta-strip {
        position: relative;
        border-radius: var(--radius-lg);
        padding: clamp(32px, 5vw, 72px);
        background: linear-gradient(rgba(21, 24, 16, 0.92), rgba(21, 24, 16, 0.86)), url("/assets/images/backpic/back-3.png") center / cover;
        color: #fff;
        overflow: hidden;
    }

    .cta-inner {
        max-width: 720px;
    }

    .cta-strip .eyebrow {
        color: rgba(255, 255, 255, 0.7);
    }

    .cta-strip h2 {
        font-size: clamp(28px, 4vw, 48px);
        line-height: 1.18;
        font-weight: 700;
        letter-spacing: -0.02em;
        margin-bottom: 18px;
    }

    .cta-strip p {
        color: rgba(255, 255, 255, 0.68);
        font-size: 15px;
        line-height: 1.85;
        max-width: 560px;
        margin-bottom: 30px;
    }

    .btn-accent {
        background: var(--accent);
        color: var(--accent-ink);
    }

    .btn-accent:hover {
        background: #fff;
        color: var(--ink);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    .btn-ghost-dark {
        background: transparent;
        color: #fff;
        border-color: rgba(255, 255, 255, 0.4);
    }

    .btn-ghost-dark:hover {
        background: #fff;
        color: var(--ink);
        border-color: #fff;
        transform: translateY(-2px);
    }

    .site-footer {
        background: var(--paper);
        border-top: 1px solid var(--line);
    }

    .site-footer .container {
        padding-top: 56px;
        padding-bottom: 40px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
        gap: 60px;
        padding-bottom: 40px;
        border-bottom: 1px solid var(--line);
    }

    .footer-brand {
        max-width: 520px;
    }

    .footer-brand .brand {
        margin-bottom: 18px;
    }

    .footer-brand p {
        font-size: 14px;
        color: var(--muted);
        line-height: 1.85;
        max-width: 480px;
    }

    .footer-col-title {
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.08em;
        color: var(--ink);
        margin-bottom: 14px;
    }

    .footer-links li {
        padding: 5px 0;
    }

    .footer-links a {
        position: relative;
        display: inline-block;
        color: var(--muted);
        font-size: 14px;
        transition: color 0.2s ease, padding-left 0.2s ease;
    }

    .footer-links a:hover {
        color: var(--ink);
        padding-left: 12px;
    }

    .footer-links a:hover::before {
        content: "";
        position: absolute;
        left: 0;
        top: 10px;
        width: 5px;
        height: 5px;
        background: var(--accent);
        border-radius: 50%;
    }

    .footer-bottom {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 12px;
        padding-top: 28px;
    }

    .footer-bottom .cr {
        font-size: 13px;
        color: var(--muted);
    }

    @media (max-width: 1023.98px) {
        .nav-toggle {
            display: inline-flex;
        }

        .site-nav {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 48;
            flex-direction: column;
            align-items: stretch;
            gap: 0;
            margin: 0;
            padding: 18px 24px 28px;
            background: var(--paper);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 22px 40px -30px rgba(0, 0, 0, 0.4);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
        }

        .site-nav.is-open {
            opacity: 1;
            visibility: visible;
            transform: none;
        }

        .site-nav a {
            padding: 13px 2px;
            justify-content: flex-start;
            font-size: 16px;
            border-left: 0;
            border-bottom: 1px solid var(--line);
            border-radius: 0;
        }

        .site-nav a:last-child {
            border-bottom: 0;
        }

        .site-nav a::after {
            display: none;
        }

        .site-nav a.active::after {
            content: "";
            display: block;
            position: absolute;
            left: 0;
            right: auto;
            top: 16px;
            bottom: 16px;
            width: 2px;
            height: auto;
            background: var(--accent);
        }

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

        .nave-login {
            margin-left: 0;
        }

        .survey-layout {
            grid-template-columns: 1fr;
        }

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

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

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

        .footer-top {
            grid-template-columns: 1fr;
            gap: 44px;
        }
    }

    @media (max-width: 767.98px) {
        .hero-actions .btn {
            flex: 1 1 auto;
        }

        .page-hero {
            padding-top: 58px;
        }

        .visual-figure,
        .survey-poster,
        .survey-poster img {
            min-height: 260px;
        }

        .survey-item {
            grid-template-columns: 40px 1fr auto;
            gap: 10px;
            padding-left: 4px;
        }

        .sno {
            font-size: 13px;
            padding-left: 8px;
        }

        .channel-table th,
        .channel-table td {
            padding-left: 18px;
            padding-right: 18px;
        }

        .route-card {
            padding: 26px 24px;
        }

        .cta-strip {
            padding: 30px 22px;
        }
    }

    @media (max-width: 519.98px) {
        .brand-mark {
            font-size: 21px;
        }

        .brand-sub {
            font-size: 11px;
        }

        .site-nav a {
            font-size: 16px;
        }

        .nav-login {
            display: none;
        }

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

        .lead {
            font-size: 15px;
        }

        .section {
            padding: 72px 0;
        }

        .section-head h2 {
            font-size: 29px;
        }

        .survey-poster {
            min-height: 230px;
        }

        .survey-poster img {
            min-height: 230px;
        }

        .survey-item {
            grid-template-columns: 34px 1fr;
            gap: 10px;
        }

        .sarrow {
            display: none;
        }

        .dark-figure img {
            min-height: 220px;
        }

        .update-panel {
            padding: 22px 18px;
        }

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

    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            scroll-behavior: auto !important;
            transition: none !important;
            animation: none !important;
        }
    }

/* roulang page: article */
:root {
    --paper: #F4F2EA;
    --surface: #FFFEF8;
    --ink: #12140F;
    --muted: #5E6259;
    --line: #DEDCCF;
    --line-heavy: #B7B4A6;
    --accent: #C7F045;
    --accent-ink: #101600;
    --dark: #151810;
    --dark-soft: #21261A;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-lg: 0 18px 40px -22px rgba(0,0,0,0.24);
    --shadow-sm: 0 2px 0 rgba(0,0,0,0.02);
    --font-cn: "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-num: "Inter", "DIN Alternate", "Roboto Mono", ui-monospace, monospace;
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-cn);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
ul, ol, dl, p, h1, h2, h3, h4, h5, h6, figure, blockquote, summary, fieldset {
    margin: 0;
    padding: 0;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color .22s ease, background .22s ease, border-color .22s ease, box-shadow .22s ease, transform .22s ease;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 0;
}
button {
    font: inherit;
    border: 0;
    background: none;
    cursor: pointer;
}
input, textarea, select {
    font: inherit;
    color: var(--ink);
}
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
}
::selection {
    background: var(--accent);
    color: var(--accent-ink);
}
a:focus-visible, button:focus-visible, summary:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(244,242,234,.82);
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    border-bottom: 1px solid rgba(222,220,207,.86);
}
.header-row {
    display: flex;
    align-items: center;
    min-height: 72px;
    gap: 28px;
    position: relative;
}
.brand {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    flex-shrink: 0;
    font-family: var(--font-cn);
    letter-spacing: -0.01em;
}
.brand-mark {
    font-size: 21px;
    font-weight: 800;
    color: var(--ink);
    line-height: 1.1;
}
.brand-sub {
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .08em;
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    flex-shrink: 0;
}
.site-nav a {
    position: relative;
    padding: 20px 12px 18px;
    color: var(--muted);
    font-size: 14px;
    letter-spacing: .02em;
    line-height: 1;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
}
.nav-dot {
    display: inline-block;
    width: 4px;
    height: 4px;
    border-radius: 2px;
    background: var(--accent);
    margin-right: 7px;
    opacity: .6;
    vertical-align: 1px;
    transition: opacity .2s ease, box-shadow .2s ease, transform .2s ease;
}
.site-nav a:hover {
    color: var(--ink);
    border-bottom-color: var(--line-heavy);
}
.site-nav a:hover .nav-dot {
    opacity: 1;
    transform: translateY(-1px);
}
.site-nav a.active {
    color: var(--ink);
    border-bottom-color: var(--accent);
}
.site-nav a.active .nav-dot {
    opacity: 1;
    box-shadow: 0 0 0 3px rgba(199,240,69,.45);
}
.header-side {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}
.header-login {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--line-heavy);
    border-radius: 40px;
    padding: 7px 16px;
    font-size: 13px;
    color: var(--muted);
    transition: color .2s ease, background .2s ease, transform .2s ease, border-color .2s ease;
}
.header-login .arr {
    font-size: 13px;
    transition: transform .2s ease;
}
.header-login:hover {
    background: var(--dark);
    color: var(--accent);
    border-color: var(--dark);
}
.header-login:hover .arr {
    transform: translateX(3px);
}
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 7px;
    border: 1px solid transparent;
    border-radius: 8px;
}
.menu-toggle span {
    display: block;
    width: 22px;
    height: 1px;
    background: var(--ink);
    transition: transform .2s ease, opacity .2s ease;
}
.menu-toggle.is-open span:first-child {
    transform: translateY(4px) rotate(45deg);
}
.menu-toggle.is-open span:last-child {
    transform: translateY(-4px) rotate(-45deg);
}

/* Main */
.article-main {
    padding-top: clamp(28px, 5vw, 56px);
    padding-bottom: 24px;
}
.article-col {
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 28px;
}
.breadcrumb a {
    color: var(--muted);
    transition: color .2s ease;
}
.breadcrumb a:hover {
    color: var(--ink);
}
.breadcrumb .sep {
    color: var(--line-heavy);
}

/* Article head */
.article-head {
    margin-bottom: clamp(24px, 4vw, 36px);
}
.category-line {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}
.cat-label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--line-heavy);
    border-radius: 30px;
    font-size: 12px;
    letter-spacing: .08em;
    color: var(--muted);
    padding: 5px 13px 5px 11px;
}
.cat-label::before {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 2px rgba(199,240,69,.3);
}
.article-title {
    font-size: clamp(30px, 5vw, 56px);
    line-height: 1.08;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin-bottom: 26px;
    position: relative;
    padding-bottom: 24px;
}
.article-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 74px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--muted);
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.meta-sep {
    color: var(--line-heavy);
}

/* Cover */
.article-cover {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    margin-bottom: 0;
}
.article-cover img {
    width: 100%;
    aspect-ratio: 2 / 1.12;
    object-fit: cover;
}
.cover-note {
    position: absolute;
    left: 16px;
    bottom: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(18,20,15,.68);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: var(--paper);
    font-size: 12px;
    letter-spacing: .05em;
    border-radius: 40px;
    padding: 5px 13px;
    line-height: 1;
}
.cover-note::before {
    content: "";
    width: 5px;
    height: 5px;
    background: var(--accent);
    border-radius: 50%;
}

/* Article body */
.article-body {
    border-top: 1px solid var(--line);
    margin-top: clamp(30px, 5vw, 48px);
    padding-top: 36px;
    color: #272A22;
    font-size: 16px;
    line-height: 1.92;
    overflow-x: auto;
}
.article-body > p {
    margin-bottom: 1.6em;
}
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
    color: var(--ink);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -0.01em;
    margin: 2em 0 .65em;
}
.article-body h2 {
    font-size: 27px;
    padding-left: 0;
    position: relative;
    margin-top: 2.2em;
}
.article-body h3 {
    font-size: 20px;
}
.article-body h4 {
    font-size: 17px;
}
.article-body ul,
.article-body ol {
    margin: 1em 0 1.7em;
    padding-left: 1.5em;
}
.article-body li {
    margin: .45em 0;
    padding-left: .2em;
}
.article-body li::marker {
    color: var(--muted);
}
.article-body a {
    color: #1A3D12;
    border-bottom: 1px solid rgba(26,61,18,.35);
    transition: color .2s ease, border-color .2s ease;
}
.article-body a:hover {
    color: var(--ink);
    border-color: var(--accent);
}
.article-body blockquote {
    border-left: 3px solid var(--accent);
    margin: 1.8em 0;
    padding: .4em 0 .4em 24px;
    color: var(--muted);
    line-height: 1.7;
}
.article-body img {
    width: auto;
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 1.5em auto;
    border: 1px solid var(--line);
}
.article-body img + em,
.article-body figcaption {
    display: block;
    text-align: center;
    font-size: 12px;
    color: var(--muted);
    margin-top: -14px;
    margin-bottom: 1.8em;
}
.article-body table {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    margin: 2em 0;
    font-size: 14px;
    line-height: 1.6;
    display: block;
    overflow-x: auto;
    background: var(--surface);
    border-radius: var(--radius-md);
}
.article-body table thead th {
    background: rgba(199,240,69,.2);
    color: var(--ink);
    font-weight: 600;
}
.article-body th,
.article-body td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
    text-align: left;
}
.article-body tr:last-child td {
    border-bottom: 0;
}
.article-body hr {
    border: 0;
    height: 1px;
    background: var(--line);
    margin: 2.4em 0;
}
.article-body code {
    background: rgba(18,20,15,.06);
    border-radius: 4px;
    padding: .1rem .4rem;
    font-family: var(--font-num);
    font-size: .9em;
}

/* Article bottom links */
.article-nav {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    margin: clamp(40px, 6vw, 56px) 0 0;
    padding: 26px 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.article-nav-left {
    color: var(--muted);
    font-size: 13px;
}
.article-nav-left strong {
    color: var(--ink);
    font-weight: 500;
}
.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    letter-spacing: .02em;
}
.link-arrow .arr {
    display: inline-block;
    transition: transform .2s ease;
    font-size: 18px;
    line-height: 1;
}
.link-arrow:hover .arr {
    transform: translateX(4px);
}

/* Related */
.related-read {
    margin-top: clamp(44px, 8vw, 76px);
}
.related-title-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 20px;
}
.sec-kicker {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    letter-spacing: .12em;
    color: var(--muted);
    margin-bottom: 8px;
}
.sec-kicker::before {
    content: "";
    width: 14px;
    height: 2px;
    background: var(--accent);
}
.sec-title {
    font-size: clamp(22px, 3.4vw, 30px);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.2;
}
.related-list {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.related-item {
    display: block;
    position: relative;
    border-bottom: 1px solid var(--line);
    transition: background .25s ease, box-shadow .25s ease;
}
.related-item:last-child {
    border-bottom: 0;
}
.related-item:hover {
    background: rgba(244,242,234,.64);
    box-shadow: inset 4px 0 0 var(--accent);
}
.related-inner {
    display: grid;
    grid-template-columns: 64px 150px 1fr;
    gap: 22px;
    align-items: center;
    padding: 18px 16px 18px 22px;
}
.rel-index {
    font-family: var(--font-num);
    font-variant-numeric: tabular-nums;
    font-size: 13px;
    color: var(--muted);
    letter-spacing: .08em;
}
.rel-thumb {
    width: 148px;
    height: 96px;
    border-radius: 12px;
    overflow: hidden;
    background: var(--paper);
    flex-shrink: 0;
}
.rel-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .3s ease;
}
.related-item:hover .rel-thumb img {
    transform: scale(1.04);
}
.rel-body {
    min-width: 0;
}
.rel-title {
    font-size: 17px;
    font-weight: 600;
    line-height: 1.45;
    color: var(--ink);
    display: block;
    margin-bottom: 4px;
    transition: color .2s ease;
}
.related-item:hover .rel-title {
    color: #1A3D12;
}
.rel-desc {
    display: block;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.6;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.rel-more {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 7px;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .04em;
}
.rel-more::after {
    content: "→";
    font-size: 13px;
    transition: transform .2s ease;
}
.related-item:hover .rel-more::after {
    transform: translateX(3px);
}

/* Support CTA */
.support-cta {
    margin-top: clamp(54px, 9vw, 88px);
    background: var(--dark);
    border-radius: calc(var(--radius-lg) + 4px);
    padding: clamp(36px, 5.6vw, 60px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    color: var(--paper);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.support-cta::after {
    content: "";
    position: absolute;
    right: -70px;
    top: -70px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(199,240,69,.06);
    pointer-events: none;
}
.cta-kicker-small {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    letter-spacing: .12em;
    color: var(--accent);
    margin-bottom: 14px;
}
.cta-kicker-small::before {
    content: "";
    width: 16px;
    height: 2px;
    background: var(--accent);
}
.support-cta h2 {
    font-size: clamp(22px, 3vw, 34px);
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -0.01em;
    max-width: 540px;
    margin-bottom: 16px;
    color: #FFF;
}
.support-cta p {
    font-size: 14px;
    color: rgba(244,242,234,.7);
    max-width: 540px;
    line-height: 1.8;
}
.support-cta .btn-group {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 18px;
    flex-shrink: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 10px 24px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .02em;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background .22s ease, border-color .22s ease, color .22s ease, transform .22s ease, box-shadow .22s ease;
}
.btn .arr {
    display: inline-block;
    margin-left: 7px;
    transition: transform .22s ease;
    line-height: 1;
}
.btn:hover .arr {
    transform: translateX(3px);
}
.btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--accent-ink);
}
.btn-accent:hover {
    background: #F4F2EA;
    border-color: var(--paper);
    color: var(--ink);
    transform: translateY(-1px);
    box-shadow: 0 12px 24px -16px rgba(0,0,0,.5);
}
.btn-ghost {
    border: 1px solid rgba(244,242,234,.4);
    color: var(--paper);
    background: transparent;
}
.btn-ghost:hover {
    background: rgba(255,255,255,.08);
    border-color: var(--accent);
    color: var(--accent);
}

/* Empty state */
.article-empty {
    max-width: 760px;
    margin: 36px auto 80px;
    text-align: center;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--line-heavy);
    padding: clamp(44px, 7vw, 80px) 28px;
    box-shadow: var(--shadow-sm);
}
.empty-code {
    display: inline-flex;
    font-family: var(--font-num);
    font-size: 14px;
    letter-spacing: .14em;
    color: var(--muted);
    border: 1px solid var(--line);
    border-radius: 40px;
    padding: 5px 14px;
    margin-bottom: 20px;
}
.empty-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 14px;
}
.article-empty p {
    color: var(--muted);
    max-width: 440px;
    margin: 0 auto 26px;
    line-height: 1.75;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--line);
    margin-top: clamp(56px, 7vw, 80px);
    background: var(--paper);
}
.footer-top {
    display: grid;
    grid-template-columns: minmax(0,2fr) minmax(0,1fr);
    gap: 60px 80px;
    padding: clamp(48px, 6vw, 72px) 0 42px;
}
.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
}
.footer-brand .brand-mark {
    font-size: 22px;
}
.footer-brand .brand-sub {
    color: var(--muted);
}
.footer-brand p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.85;
    margin-top: 4px;
    max-width: 440px;
}
.footer-col-title {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .05em;
    color: var(--ink);
    margin-bottom: 16px;
    padding-bottom: 10px;
    position: relative;
}
.footer-col-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 22px;
    height: 2px;
    background: var(--accent);
}
.footer-links {
    list-style: none;
    display: grid;
    grid-template-columns: minmax(0,1fr);
    gap: 8px;
}
.footer-links a {
    display: inline-flex;
    align-items: center;
    padding: 3px 0 3px 10px;
    position: relative;
    font-size: 14px;
    color: var(--muted);
    transition: color .2s ease;
}
.footer-links a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--line-heavy);
    transform: translateY(-50%);
    transition: background .2s ease, height .2s ease;
}
.footer-links a:hover {
    color: var(--ink);
    padding-left: 14px;
}
.footer-links a:hover::before {
    background: var(--accent);
    height: 9px;
}
.footer-bottom {
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 10px 30px;
    padding: 20px 0 24px;
    font-size: 13px;
    color: var(--muted);
}

/* Responsive */
@media (max-width: 1279px) and (min-width: 1024px) {
    .site-nav a {
        padding-left: 10px;
        padding-right: 10px;
        font-size: 13px;
    }
    .header-row {
        gap: 16px;
    }
    .container {
        padding-left: 28px;
        padding-right: 28px;
    }
}
@media (max-width: 1023px) {
    .container {
        padding-left: 28px;
        padding-right: 28px;
    }
    .header-row {
        gap: 14px;
    }
    .site-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: block;
        background: var(--paper);
        border-bottom: 1px solid transparent;
        padding: 0 28px;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: max-height .22s ease, opacity .22s ease, border-color .22s ease, visibility .22s;
        box-shadow: 0 18px 20px -32px rgba(0,0,0,.4);
        margin-left: 0;
    }
    .site-nav.is-open {
        max-height: calc(100vh - 72px);
        opacity: 1;
        visibility: visible;
        border-bottom-color: var(--line);
        overflow-y: auto;
    }
    .site-nav a {
        display: flex;
        align-items: center;
        border-bottom: 0;
        border-top: 1px solid var(--line);
        padding: 16px 0;
        font-size: 15px;
        white-space: normal;
        color: var(--ink);
    }
    .site-nav a:first-child {
        border-top-color: transparent;
    }
    .site-nav a.active {
        border-left: 2px solid var(--accent);
        padding-left: 14px;
        border-bottom: 0;
        color: var(--ink);
    }
    .site-nav a.active .nav-dot {
        box-shadow: 0 0 0 3px rgba(199,240,69,.4);
    }
    .menu-toggle {
        display: inline-flex;
    }
    .header-login {
        display: none;
    }
    .related-inner {
        grid-template-columns: 52px 132px 1fr;
        gap: 16px;
        padding-left: 18px;
    }
    .rel-thumb {
        width: 128px;
        height: 88px;
    }
    .support-cta {
        padding: 34px 28px;
    }
}
@media (max-width: 639px) {
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    .header-row {
        min-height: 64px;
        gap: 10px;
    }
    .brand-sub {
        font-size: 11px;
    }
    .brand-mark {
        font-size: 19px;
    }
    .site-nav {
        padding: 0 20px;
    }
    .article-col {
        max-width: 100%;
    }
    .breadcrumb {
        margin-bottom: 18px;
        font-size: 12px;
    }
    .article-cover img {
        aspect-ratio: 4 / 3;
    }
    .article-title {
        font-size: clamp(26px, 7.2vw, 36px);
        line-height: 1.14;
        padding-bottom: 18px;
        margin-bottom: 20px;
    }
    .article-meta {
        gap: 10px;
        font-size: 12px;
    }
    .article-body {
        font-size: 15px;
        line-height: 1.85;
        padding-top: 26px;
        margin-top: 26px;
    }
    .article-nav {
        padding: 20px 0;
    }
    .related-inner {
        grid-template-columns: 36px 1fr;
        gap: 12px;
        padding: 14px;
    }
    .rel-index {
        grid-column: 1;
        align-self: center;
        font-size: 11px;
    }
    .rel-thumb {
        display: none;
    }
    .rel-body {
        grid-column: 2;
    }
    .related-item:hover {
        box-shadow: inset 3px 0 0 var(--accent);
    }
    .rel-title {
        font-size: 15px;
    }
    .rel-desc {
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .support-cta {
        padding: 28px 20px;
        border-radius: 18px;
    }
    .support-cta p {
        font-size: 14px;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-top: 44px;
    }
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        font-size: 12px;
    }
    .btn {
        min-height: 44px;
        padding: 9px 18px;
    }
}
@media (prefers-reduced-motion: reduce) {
    * {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}

/* roulang page: category3 */
:root {
  --paper: #F4F2EA;
  --surface: #FFFEF8;
  --ink: #12140F;
  --muted: #5E6259;
  --line: #DEDCCF;
  --line-heavy: #B7B4A6;
  --accent: #C7F045;
  --accent-ink: #101600;
  --dark: #151810;
  --dark-soft: #21261A;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 0 rgba(0, 0, 0, 0.02);
  --shadow-md: 0 16px 32px -22px rgba(0, 0, 0, 0.2);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

button {
  font: inherit;
  cursor: pointer;
  background: none;
  border: 0;
}

p,
h1,
h2,
h3,
h4,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

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

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding-inline: 40px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  background: var(--surface);
  border-color: var(--surface);
  color: var(--ink);
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -16px rgba(0, 0, 0, 0.34);
}

.btn-dark {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.btn-dark:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--line-heavy);
  color: var(--ink);
}

.btn-outline:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.text-link i {
  transition: transform 0.2s var(--ease);
}

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

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(244, 242, 234, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 18px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  flex: 0 0 auto;
}

.brand-mark {
  position: relative;
  font-size: 21px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.brand-mark::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-left: 5px;
  background: var(--accent);
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: 2px;
  vertical-align: 4px;
}

.brand-sub {
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.2;
  padding: 5px 9px;
  border-left: 1px solid var(--line);
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  margin-left: auto;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 13px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  border-radius: 999px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 99px;
  transform: scaleX(0);
  transition: transform 0.2s var(--ease);
}

.site-nav a:hover {
  color: var(--ink);
  background: rgba(255, 254, 248, 0.55);
}

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

.site-nav a.active::after {
  transform: scaleX(1);
}

.nav-dot {
  width: 5px;
  height: 5px;
  display: inline-block;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0;
  box-shadow: 0 0 0 3px rgba(199, 240, 69, 0.16);
  transition: opacity 0.2s ease;
}

.site-nav a.active .nav-dot {
  opacity: 1;
}

.header-access {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 17px;
  font-size: 13px;
  font-weight: 600;
  flex: 0 0 auto;
  border-radius: 999px;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.header-access:hover {
  background: var(--ink);
  color: var(--accent);
}

.header-access span {
  transition: transform 0.2s var(--ease);
}

.header-access:hover span {
  transform: translateX(3px);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: transparent;
}

.nav-toggle span {
  width: 17px;
  height: 1.6px;
  background: var(--ink);
  opacity: 1;
  margin: 2.4px 0;
  transition: transform 0.2s var(--ease), opacity 0.2s ease;
}

.nav-toggle.is-open span:first-child {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle.is-open span:last-child {
  transform: translateY(-2px) rotate(-45deg);
}

/* ---------- hero ---------- */
.hero-band {
  position: relative;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(199, 240, 69, 0.12), transparent 60%),
    var(--dark);
  color: var(--paper);
  overflow: hidden;
}

.hero-band::after {
  content: "";
  display: block;
  width: 100%;
  height: 8px;
  background: var(--accent);
}

.hero-body {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 60px;
  align-items: center;
  padding-block: clamp(56px, 8vw, 104px);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  margin-bottom: 28px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.hero-kicker::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 2px;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(42px, 6.4vw, 86px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin-bottom: 24px;
}

.hero-title em {
  display: block;
  font-style: normal;
  color: var(--accent);
}

.hero-lead {
  max-width: 32em;
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 54px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0 30px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-points li {
  display: flex;
  align-items: center;
  gap: 9px;
  position: relative;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.hero-points li + li::before {
  content: "";
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.2);
  margin-right: 30px;
}

.hero-points i {
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
}

.hero-visual {
  position: relative;
}

.photo-frame {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  background: var(--dark-soft);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 30px 60px -24px rgba(0, 0, 0, 0.6);
  aspect-ratio: 5 / 4;
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.02);
  transition: transform 0.5s var(--ease);
}

.photo-frame:hover img {
  transform: scale(1.04);
}

.photo-frame.no-image {
  background:
    linear-gradient(135deg, transparent 45%, rgba(199, 240, 69, 0.08) 45%),
    var(--dark-soft);
}

.photo-note {
  position: absolute;
  left: 14px;
  bottom: 14px;
  background: rgba(21, 24, 16, 0.78);
  backdrop-filter: blur(8px);
  padding: 7px 14px;
  color: rgba(255, 255, 255, 0.84);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
}

/* ---------- section ---------- */
.section {
  padding-block: clamp(80px, 10vw, 128px);
}

.section-head {
  max-width: 820px;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.kicker::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  max-width: 680px;
}

/* ---------- tier panel ---------- */
.tier-panel {
  position: relative;
}

.tier-card {
  display: grid;
  grid-template-columns: 110px minmax(0, 1.5fr) minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.28s var(--ease), border-color 0.25s ease, box-shadow 0.25s ease;
}

.tier-card:nth-child(3) {
  margin-left: 34px;
}

.tier-card:nth-child(4) {
  margin-left: 68px;
  border-color: rgba(18, 20, 15, 0.18);
}

.tier-card:hover {
  transform: translateY(-3px);
  border-color: var(--ink);
  box-shadow: var(--shadow-md);
}

.tier-num {
  font-family: "Inter", "DIN Alternate", "Roboto Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 42px;
  font-weight: 300;
  letter-spacing: -0.04em;
  color: var(--line-heavy);
}

.tier-card:nth-child(4) .tier-num {
  color: var(--accent);
}

.tier-info .tier-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 5px;
}

.tier-info .tier-scene {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.tier-scope {
  border-left: 1px solid var(--line);
  padding-left: 24px;
}

.tier-scope dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 9px;
}

.tier-scope dd {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.7;
}

.tier-go {
  white-space: nowrap;
}

.tier-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  border: 1px solid var(--line-heavy);
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
}

.tier-card:nth-child(4) .tier-badge {
  border-color: var(--ink);
  background: var(--accent);
  color: var(--accent-ink);
}

/* ---------- compare matrix ---------- */
.compare-board {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: clamp(18px, 4vw, 36px);
  overflow: hidden;
}

.compare-tip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  background: var(--dark);
  color: var(--paper);
  border-radius: 16px;
  padding: 15px 20px;
  margin-bottom: 24px;
}

.compare-tip .tip-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.compare-tip .tip-label::before {
  content: "●";
  font-size: 9px;
}

.compare-tip p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.7;
}

.table-scroll {
  overflow-x: auto;
}

.table-scroll::-webkit-scrollbar {
  height: 7px;
}

.table-scroll::-webkit-scrollbar-thumb {
  background: var(--line-heavy);
  border-radius: 99px;
}

.equity-table {
  width: 100%;
  min-width: 800px;
  border-collapse: collapse;
  background: var(--surface);
}

.equity-table th,
.equity-table td {
  padding: 17px 20px;
  vertical-align: top;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
}

.equity-table thead th {
  font-size: 13px;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--muted);
  background: rgba(244, 242, 234, 0.5);
}

.equity-table thead th:first-child {
  min-width: 160px;
}

.equity-table thead th:not(:first-child) {
  min-width: 190px;
  text-align: center;
}

.equity-table tbody td:not(:first-child) {
  text-align: center;
}

.equity-table .reco-col {
  background: rgba(199, 240, 69, 0.11);
}

.reco-tag {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 12px;
  padding: 3px 9px;
  border-radius: 99px;
  margin-bottom: 6px;
  font-weight: 700;
}

.equity-table tbody tr:last-child td {
  border-bottom: 0;
}

.equity-table .mono,
.mono {
  font-family: "Inter", "DIN Alternate", "Roboto Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}

/* ---------- choice band ---------- */
.choice-section {
  background: var(--dark);
  position: relative;
  color: var(--paper);
  overflow: hidden;
}

.choice-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-position: center;
  background-size: cover;
  opacity: 0.19;
}

.choice-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(32px, 6vw, 90px);
  align-items: center;
}

.choice-intro .kicker {
  color: var(--accent);
}

.choice-intro .kicker::before {
  background: var(--accent);
}

.choice-intro h2 {
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.15;
  font-weight: 700;
  color: var(--paper);
  margin-bottom: 18px;
}

.choice-intro p {
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.8;
  font-size: 15px;
}

.choice-links {
  display: grid;
  gap: 12px;
}

.choice-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 18px;
  color: var(--paper);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.22s var(--ease);
}

.choice-link .cl-title {
  font-weight: 600;
  font-size: 16px;
}

.choice-link .cl-desc {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.48);
}

.choice-link .cl-arrow {
  font-size: 24px;
  color: var(--accent);
  transition: transform 0.22s var(--ease);
}

.choice-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  transform: translateX(5px);
}

.choice-link:hover .cl-desc,
.choice-link:hover .cl-arrow {
  color: var(--accent-ink);
}

.choice-link:hover .cl-arrow {
  transform: translateX(4px);
}

.choice-note {
  position: absolute;
  left: 40px;
  bottom: 24px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.38);
}

/* ---------- faq ---------- */
.faq-wrap {
  max-width: 860px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 8px;
  border-radius: 8px;
  outline: none;
  transition: background 0.2s ease, color 0.2s ease;
}

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

.faq-item summary:hover {
  background: rgba(255, 254, 248, 0.7);
}

.faq-question {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
}

.faq-icon {
  position: relative;
  display: block;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform 0.22s var(--ease);
}

.faq-icon::before {
  width: 12px;
  height: 1.8px;
  top: 10px;
  left: 4px;
}

.faq-icon::after {
  width: 1.8px;
  height: 12px;
  top: 5px;
  left: 9px;
}

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

.faq-item .faq-body {
  padding: 0 32px 18px 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- final CTA ---------- */
.final-cta {
  background: var(--surface);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

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

.final-title {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 14px;
}

.final-grid p {
  color: var(--muted);
  font-size: 15px;
  max-width: 660px;
}

.final-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  justify-content: flex-end;
}

/* ---------- footer ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.72);
  border-top: 8px solid var(--accent);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding-block: 64px 32px;
}

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

.footer-brand .brand-mark {
  color: var(--paper);
}

.footer-brand .brand-sub {
  color: rgba(255, 255, 255, 0.55);
  border-color: rgba(255, 255, 255, 0.2);
}

.footer-brand p {
  max-width: 560px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.48);
}

.footer-col-title {
  font-size: 13px;
  letter-spacing: 0.06em;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--accent);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.footer-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.footer-links a::before {
  content: "";
  width: 3px;
  height: 3px;
  border-radius: 99px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
  flex: 0 0 auto;
}

.footer-links a:hover {
  color: var(--paper);
  border-color: rgba(199, 240, 69, 0.8);
}

.footer-links a:hover::before {
  opacity: 1;
  transform: translateX(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding-block: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
}

/* ---------- sticky ---------- */
.sticky-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 45;
  background: var(--ink);
  padding: 9px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
}

.sticky-cta .sc-dot {
  width: 9px;
  height: 9px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(199, 240, 69, 0.15);
}

.sticky-cta .sc-text {
  font-size: 13px;
  line-height: 1.2;
  padding-left: 4px;
}

.sticky-cta .sc-text b {
  color: var(--accent);
  font-weight: 700;
  margin-right: 6px;
}

.sticky-cta a {
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 12px;
  border-radius: 999px;
  margin-left: 4px;
}

.sticky-cta a:hover {
  background: var(--surface);
}

/* ---------- reveal ---------- */
.reveal {
  opacity: 1;
  transform: none;
}

.reveal-init {
  opacity: 0;
  transform: translateY(18px);
}

.reveal-init {
  transition: opacity 0.52s var(--ease), transform 0.52s var(--ease);
}

.reveal-init.on {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- responsive ---------- */
@media (max-width: 1200px) {
  .container {
    max-width: none;
    padding-inline: 32px;
  }

  .tier-card {
    grid-template-columns: 90px minmax(0, 1.2fr) minmax(0, 1fr);
  }

  .tier-go {
    display: none;
  }
}

@media (max-width: 1024px) {
  .container {
    padding-inline: 28px;
  }

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

  .site-nav {
    position: absolute;
    top: 68px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 18px 30px -20px rgba(0, 0, 0, 0.3);
    padding: 10px;
    gap: 2px;
    z-index: 65;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 16px;
  }

  .site-nav a::after {
    display: none;
  }

  .header-inner {
    position: relative;
  }

  .hero-body {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .hero-visual {
    max-width: 620px;
    margin-inline: auto;
  }

  .hero-title {
    font-size: clamp(38px, 9vw, 70px);
  }

  .tier-card,
  .tier-card:nth-child(3),
  .tier-card:nth-child(4) {
    grid-template-columns: 80px minmax(0, 1fr);
    margin-left: 0;
    gap: 22px;
  }

  .tier-scope {
    grid-column: 2;
    border-left: 0;
    padding-left: 0;
  }

  .choice-inner,
  .final-grid {
    grid-template-columns: 1fr;
  }

  .final-actions {
    justify-content: flex-start;
  }

  .choice-section {
    padding-bottom: 70px;
  }

  .choice-note {
    position: static;
    margin-top: 36px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 44px;
  }
}

@media (max-width: 640px) {
  .container {
    padding-inline: 20px;
  }

  .header-access {
    display: none;
  }

  .brand-sub {
    display: none;
  }

  .hero-points {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .hero-points li + li::before {
    display: none;
  }

  .section {
    padding-block: 80px 88px;
  }

  .tier-card,
  .tier-card:nth-child(3),
  .tier-card:nth-child(4) {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 22px;
  }

  .tier-num {
    font-size: 30px;
  }

  .tier-scope {
    grid-column: 1;
  }

  .photo-note {
    font-size: 11px;
  }

  .compare-board {
    padding: 16px;
  }

  .choice-link {
    padding: 18px;
  }

  .faq-item summary {
    padding: 16px 4px;
  }

  .faq-item .faq-body {
    padding: 0 18px 16px 4px;
  }

  .sticky-cta {
    display: none;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-init {
    opacity: 1;
    transform: none;
  }
}

/* roulang page: category4 */
:root {
            --paper: #F4F2EA;
            --surface: #FFFEF8;
            --ink: #12140F;
            --muted: #5E6259;
            --line: #DEDCCF;
            --line-heavy: #B7B4A6;
            --accent: #C7F045;
            --accent-ink: #101600;
            --dark: #151810;
            --dark-soft: #21261A;
            --dark-line: rgba(255, 255, 255, .14);
            --font-sans: "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-mono: "Inter", "DIN Alternate", "Roboto Mono", ui-monospace, monospace;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-line: 0 2px 0 rgba(0, 0, 0, .02);
            --shadow-float: 0 18px 40px -22px rgba(0, 0, 0, .24);
            --header-h: 78px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-h) + 18px);
        }
        body {
            margin: 0;
            background: var(--paper);
            color: var(--ink);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        ul,
        ol {
            padding: 0;
            margin: 0;
        }
        li {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        p {
            margin: 0;
        }
        button,
        input,
        textarea {
            font: inherit;
            border: 0;
            background: none;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 40px;
        }
        .section-normal {
            padding: clamp(80px, 10vw, 128px) 0;
        }
        .section-head {
            max-width: 820px;
            margin-bottom: clamp(36px, 5vw, 58px);
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: .08em;
            color: var(--ink);
            border-bottom: 1px solid var(--line-heavy);
            padding-bottom: 10px;
            margin-bottom: 22px;
        }
        .section-kicker .kicker-mark {
            color: var(--accent-ink);
            background: var(--accent);
            width: 7px;
            height: 7px;
            border-radius: 2px;
            display: inline-block;
        }
        .section-title {
            font-size: clamp(28px, 4vw, 46px);
            font-weight: 700;
            line-height: 1.14;
            letter-spacing: -0.01em;
        }
        .section-head p {
            margin-top: 18px;
            color: var(--muted);
            font-size: 16px;
            max-width: 660px;
        }
        .section-head .section-title+.section-lead {
            margin-top: 18px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(244, 242, 234, .9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            height: var(--header-h);
        }
        .header-inner {
            height: var(--header-h);
            display: flex;
            align-items: center;
        }
        .brand {
            display: inline-flex;
            flex-direction: column;
            justify-content: center;
            line-height: 1.1;
        }
        .brand-mark {
            font-size: 23px;
            font-weight: 800;
            letter-spacing: -0.02em;
        }
        .brand-sub {
            font-size: 10px;
            color: var(--muted);
            letter-spacing: .18em;
            margin-top: 4px;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            margin-left: auto;
            margin-right: 24px;
        }
        .site-nav a {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink);
            padding: 10px 11px;
            transition: color .2s ease;
        }
        .site-nav a::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 1px;
            height: 2px;
            background: var(--ink);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .25s ease;
        }
        .site-nav a:hover::after {
            transform: scaleX(1);
        }
        .site-nav a.active {
            font-weight: 600;
        }
        .site-nav a.active::after {
            background: var(--accent);
            transform: scaleX(1);
        }
        .nav-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: transparent;
            transition: background .2s ease;
        }
        .site-nav a.active .nav-dot {
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(199, 240, 69, .26);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-login {
            font-size: 13px;
            line-height: 1;
            color: var(--ink);
            border: 1px solid var(--line-heavy);
            padding: 11px 18px;
            border-radius: 10px;
            background: transparent;
            transition: all .22s ease;
        }
        .nav-login:hover {
            background: var(--ink);
            color: var(--paper);
            border-color: var(--ink);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 44px;
            position: relative;
            cursor: pointer;
            margin-left: 8px;
        }
        .nav-toggle span,
        .nav-toggle::before,
        .nav-toggle::after {
            content: "";
            position: absolute;
            left: 9px;
            right: 9px;
            height: 1.4px;
            background: var(--ink);
            transition: all .22s ease;
        }
        .nav-toggle span {
            top: 21px;
        }
        .nav-toggle::before {
            top: 14px;
        }
        .nav-toggle::after {
            bottom: 14px;
        }
        .nav-toggle.open span {
            opacity: 0;
        }
        .nav-toggle.open::before {
            top: 21px;
            transform: rotate(45deg);
        }
        .nav-toggle.open::after {
            bottom: 21px;
            transform: rotate(-45deg);
        }

        .security-hero {
            background: var(--dark);
            color: var(--surface);
            padding: clamp(70px, 9vw, 136px) 0 clamp(64px, 7vw, 112px);
            position: relative;
            overflow: hidden;
        }
        .security-hero::before {
            content: "SUPPORT";
            position: absolute;
            right: -30px;
            bottom: -44px;
            font-family: var(--font-mono);
            font-size: clamp(110px, 18vw, 260px);
            font-weight: 800;
            letter-spacing: -.06em;
            line-height: 1;
            color: rgba(255, 255, 255, .035);
            pointer-events: none;
            user-select: none;
        }
        .security-hero::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 8px;
            background: var(--accent);
        }
        .hero-kicker {
            display: flex;
            align-items: center;
            gap: 12px;
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: .12em;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 26px;
        }
        .hero-kicker::before {
            content: "";
            width: 30px;
            height: 1px;
            background: var(--accent);
            display: inline-block;
        }
        .security-hero h1 {
            font-size: clamp(40px, 6vw, 76px);
            line-height: 1.08;
            letter-spacing: -0.03em;
            font-weight: 800;
            max-width: 760px;
        }
        .security-hero h1 span {
            color: transparent;
            -webkit-text-stroke: 1px rgba(255, 255, 255, .48);
        }
        .hero-lead {
            max-width: 620px;
            margin-top: 28px;
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .72);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 38px;
        }
        .status-pill {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-top: 42px;
            padding: 11px 18px;
            border: 1px solid var(--dark-line);
            border-radius: 999px;
            background: rgba(255, 255, 255, .03);
            color: rgba(255, 255, 255, .78);
            font-size: 14px;
            line-height: 1.4;
        }
        .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 5px rgba(199, 240, 69, .15);
        }
        .console-wrap {
            display: flex;
            justify-content: flex-end;
        }
        .console-card {
            width: min(100%, 430px);
            background: var(--dark-soft);
            border: 1px solid var(--dark-line);
            border-radius: 28px;
            padding: clamp(28px, 4vw, 46px);
            position: relative;
            color: var(--surface);
            box-shadow: 0 30px 80px -40px rgba(0, 0, 0, .6);
        }
        .console-card::before {
            content: "";
            position: absolute;
            left: -1px;
            top: 28px;
            bottom: 28px;
            width: 3px;
            background: var(--accent);
            border-radius: 6px;
        }
        .console-line {
            padding: 18px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            display: grid;
            grid-template-columns: 42px 1fr;
            align-items: baseline;
            gap: 12px;
        }
        .console-line:last-child {
            border-bottom: 0;
        }
        .console-code {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--accent);
        }
        .console-text {
            font-size: 13px;
            color: rgba(255, 255, 255, .58);
            letter-spacing: .05em;
        }
        .console-note {
            font-family: var(--font-mono);
            font-size: 11px;
            color: rgba(255, 255, 255, .38);
            margin-bottom: 18px;
        }

        .rule-section {
            position: relative;
            background: var(--paper);
        }
        .split-grid {
            align-items: start;
        }
        .rule-main {
            padding-right: 30px;
        }
        .rule-stack {
            border-top: 1px solid var(--line);
        }
        .rule-item {
            border-bottom: 1px solid var(--line);
            padding: 30px 0;
            display: grid;
            grid-template-columns: 58px 1fr;
            gap: 18px;
        }
        .rule-no {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--ink);
            border: 1px solid var(--line-heavy);
            border-radius: 50%;
            background: var(--surface);
            margin-top: 4px;
        }
        .rule-item:nth-child(1) .rule-no {
            color: var(--accent-ink);
            background: var(--accent);
            border-color: var(--accent);
        }
        .rule-item h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.3;
        }
        .rule-item p {
            margin-top: 10px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .quick-panel {
            position: sticky;
            top: calc(var(--header-h) + 26px);
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-line);
            transition: box-shadow .25s ease, border-color .25s ease;
        }
        .quick-panel:hover {
            border-color: var(--line-heavy);
            box-shadow: var(--shadow-float);
        }
        .quick-media {
            position: relative;
            background: var(--dark-soft);
            min-height: 190px;
            overflow: hidden;
        }
        .quick-media img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .quick-media-note {
            position: absolute;
            left: 18px;
            bottom: 18px;
            background: rgba(18, 20, 15, .72);
            color: var(--paper);
            font-size: 12px;
            padding: 7px 12px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }
        .quick-body {
            padding: 32px;
        }
        .quick-body-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .quick-description {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .quick-list {
            display: grid;
            gap: 2px;
        }
        .quick-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 2px;
            border-bottom: 1px solid var(--line);
            font-size: 14px;
            color: var(--ink);
            transition: padding .2s ease;
        }
        .quick-list a:last-child {
            border-bottom: 0;
        }
        .quick-list a:hover {
            padding-left: 10px;
            color: var(--ink);
        }
        .quick-list a i {
            font-style: normal;
            color: var(--accent-ink);
            transition: transform .2s ease;
        }
        .quick-list a:hover i {
            transform: translateX(5px);
        }

        .service-section {
            background: var(--surface);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .service-row {
            display: grid;
            grid-template-columns: 130px minmax(0, 1fr) auto;
            gap: 24px;
            align-items: center;
            padding: 30px 8px;
            border-bottom: 1px solid var(--line);
        }
        .service-row:last-child {
            border-bottom: 0;
        }
        .service-index {
            font-family: var(--font-mono);
            font-size: 15px;
            color: var(--muted);
        }
        .service-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.3;
        }
        .service-body p {
            color: var(--muted);
            margin-top: 8px;
            font-size: 15px;
            max-width: 720px;
        }
        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            padding: 12px 18px;
            border: 1px solid var(--line-heavy);
            border-radius: 999px;
            white-space: nowrap;
            transition: all .22s ease;
        }
        .service-link:hover {
            background: var(--ink);
            color: var(--paper);
            border-color: var(--ink);
        }
        .service-link span {
            transition: transform .2s ease;
        }
        .service-link:hover span {
            transform: translateX(4px);
        }

        .cta-area {
            padding: clamp(80px, 8vw, 110px) 0 20px;
        }
        .cta-card {
            background: var(--dark);
            color: var(--paper);
            border-radius: 32px;
            padding: clamp(36px, 6vw, 76px);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            box-shadow: 0 30px 70px -45px rgba(0, 0, 0, .45);
        }
        .cta-card::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 90px;
            height: 8px;
            background: var(--accent);
        }
        .cta-kicker {
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: .16em;
            color: var(--accent);
            margin-bottom: 18px;
        }
        .cta-card h2 {
            font-size: clamp(25px, 3vw, 40px);
            line-height: 1.2;
            letter-spacing: -.02em;
        }
        .cta-card .cta-copy {
            margin-top: 14px;
            color: rgba(255, 255, 255, .65);
            max-width: 540px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            height: 50px;
            padding: 0 28px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            transition: all .22s ease;
            cursor: pointer;
            border: 1px solid transparent;
        }
        .btn-light {
            background: var(--paper);
            color: var(--ink);
        }
        .btn-light:hover {
            background: var(--accent);
            color: var(--accent-ink);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid var(--dark-line);
            color: var(--paper);
        }
        .btn-ghost:hover {
            border-color: var(--paper);
            background: var(--paper);
            color: var(--ink);
        }

        .faq-section {
            background: var(--paper);
            padding: clamp(80px, 9vw, 132px) 0;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
            background: transparent;
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            cursor: pointer;
            padding: 25px 4px;
            transition: padding .25s ease;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border: 1px solid var(--line-heavy);
            border-radius: 50%;
            color: var(--ink);
            font-size: 20px;
            font-weight: 300;
            position: relative;
            flex-shrink: 0;
            transition: all .2s ease;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: currentColor;
            transition: transform .2s ease;
        }
        .faq-icon::before {
            width: 11px;
            height: 1.5px;
        }
        .faq-icon::after {
            width: 1.5px;
            height: 11px;
        }
        .faq-item[open] .faq-icon::after {
            transform: scaleY(0);
        }
        .faq-item[open] .faq-icon {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--accent-ink);
        }
        .faq-item[open] summary {
            padding-bottom: 16px;
        }
        .faq-answer {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            padding: 0 50px 28px 4px;
        }
        .faq-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto clamp(42px, 5vw, 64px);
        }
        .faq-head .section-kicker {
            justify-content: center;
        }

        .site-footer {
            background: var(--paper);
            border-top: 1px solid var(--line);
            padding: 74px 0 30px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: minmax(0, 1.3fr) minmax(240px, .7fr);
            gap: 80px;
            padding-bottom: 52px;
            border-bottom: 1px solid var(--line);
        }
        .footer-brand .brand {
            margin: -2px 0 0;
        }
        .footer-brand p {
            margin-top: 22px;
            max-width: 540px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.85;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--line);
            margin-bottom: 22px;
        }
        .footer-links {
            display: grid;
            gap: 4px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            color: var(--muted);
            padding: 6px 0;
            font-size: 14px;
            transition: color .2s ease, transform .2s ease;
        }
        .footer-links a::before {
            content: "|";
            width: 0;
            overflow: hidden;
            color: var(--accent-ink);
            font-size: 13px;
            transition: width .2s ease, margin .2s ease;
        }
        .footer-links a:hover {
            color: var(--ink);
            transform: translateX(4px);
        }
        .footer-links a:hover::before {
            content: "|";
            width: 12px;
            margin-right: 8px;
        }
        .footer-bottom {
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            color: var(--muted);
            font-size: 13px;
        }

        .js .reveal {
            opacity: 0;
            transform: translateY(18px);
            transition: opacity .55s ease, transform .55s ease;
            transition-delay: var(--rd, 0ms);
        }
        .js .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1180px) {
            .site-nav a {
                padding-left: 7px;
                padding-right: 7px;
                gap: 6px;
            }
            .nav-login {
                padding-left: 13px;
                padding-right: 13px;
            }
        }
        @media (max-width: 1023px) {
            .container {
                padding-left: 28px;
                padding-right: 28px;
            }
            .header-inner {
                justify-content: space-between;
            }
            .site-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                display: grid;
                gap: 0;
                margin: 0;
                background: rgba(255, 254, 248, .97);
                backdrop-filter: blur(18px);
                border-bottom: 1px solid var(--line);
                padding: 10px 28px 20px;
                transform: translateY(-8px);
                opacity: 0;
                visibility: hidden;
                transition: opacity .2s ease, transform .2s ease, visibility .2s;
                box-shadow: 0 24px 48px -20px rgba(0, 0, 0, .2);
                max-height: calc(100vh - var(--header-h));
                overflow-y: auto;
            }
            .site-nav.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
            }
            .site-nav a {
                width: 100%;
                padding: 15px 4px;
                border-bottom: 1px solid var(--line);
            }
            .site-nav a::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-actions {
                gap: 6px;
                margin-left: auto;
            }
            .nav-login {
                display: none;
            }
            .cta-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-buttons {
                width: 100%;
            }
            .split-grid {
                row-gap: 38px;
            }
            .quick-panel {
                position: static;
            }
            .service-link {
                justify-content: center;
                text-align: center;
                padding: 11px 16px;
            }
            .service-row {
                grid-template-columns: 70px minmax(0, 1fr) auto;
            }
            .footer-top {
                gap: 48px;
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 720px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .brand-mark {
                font-size: 20px;
            }
            .rule-main {
                padding-right: 0;
            }
            .service-row {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 26px 0;
            }
            .service-link {
                justify-self: start;
                margin-top: 8px;
            }
            .security-hero {
                padding-top: 48px;
            }
            .console-wrap {
                margin-top: 34px;
                justify-content: flex-start;
            }
            .console-card {
                width: 100%;
            }
            .section-title {
                font-size: 28px;
            }
            .cta-card {
                border-radius: 22px;
                padding: 34px 24px;
            }
            .faq-answer {
                padding-right: 4px;
            }
            .footer-bottom {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
            .js .reveal {
                opacity: 1;
                transform: none;
            }
        }