/* roulang page: index */
:root{
  --ink-900:#16211C;--ink-700:#2C3A33;--ink-500:#4A5A51;
  --paper-50:#FBF8F2;--paper-100:#F3EDE2;--paper-200:#E7DFD1;
  --clay-600:#C0553C;--clay-500:#D4694F;--clay-700:#9E4430;
  --olive-500:#6E7F6A;
  --text-900:#191A17;--text-600:#5B5C54;--text-400:#8C8D84;
  --r-sm:4px;--r-md:10px;--r-lg:14px;--r-btn:6px;
  --shadow-1:0 1px 0 rgba(22,33,28,.06);
  --shadow-2:0 18px 40px -24px rgba(22,33,28,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper-50);color:var(--text-900);
  font-family:var(--sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4,.serif{font-family:var(--serif);color:var(--ink-900);letter-spacing:-.01em}
h1{font-size:56px;line-height:1.15;font-weight:700;margin:0 0 24px;text-wrap:balance}
h2{font-size:36px;line-height:1.25;font-weight:600;margin:0 0 20px;text-wrap:balance}
h3{font-size:24px;line-height:1.35;font-weight:600;margin:0 0 14px}
h4{font-size:19px;line-height:1.45;font-weight:600;margin:0 0 10px}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
a{color:var(--clay-600);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--clay-500)}
img{max-width:100%;display:block;object-fit:cover}
ul,ol{margin:0 0 18px;padding-left:22px}
li{margin-bottom:8px}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-900);color:var(--paper-50);padding:10px 18px;border-radius:var(--r-btn);z-index:999}
.skip-link:focus{left:16px;top:16px;color:var(--paper-50)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-900);color:var(--paper-100);font-size:13px;letter-spacing:.01em}
.topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar-note{display:flex;align-items:center;gap:10px;color:rgba(251,248,242,.82)}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--clay-500);display:inline-block}
.topbar a{color:var(--paper-50);border-bottom:1px solid rgba(251,248,242,.35);padding-bottom:1px}
.topbar a:hover{color:#fff;border-bottom-color:var(--clay-500)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,248,242,.96);border-bottom:1px solid transparent;transition:height .26s var(--ease),border-color .18s ease-out}
.site-header.is-scrolled{border-bottom-color:var(--paper-200)}
.nav-wrap{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;height:76px;transition:height .26s var(--ease)}
.site-header.is-scrolled .nav-wrap{height:62px}
.nav-side{display:flex;align-items:center;gap:22px}
.nav-side.left{justify-content:flex-end}
.nav-side.right{justify-content:flex-start}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-700);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--clay-600);transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease)}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink-900);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border:1px solid rgba(22,33,28,.24);border-radius:8px;background:var(--paper-100)}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--text-400);white-space:nowrap}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--paper-200);border-radius:var(--r-btn);align-items:center;justify-content:center;background:var(--paper-50)}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--ink-900);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--ink-900)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-login-mini{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--paper-200);align-items:center;justify-content:center;color:var(--ink-900);background:var(--paper-50)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:var(--r-btn);font-size:16px;font-weight:600;letter-spacing:.01em;line-height:1.2;transition:background .18s ease-out,color .18s ease-out,transform .26s var(--ease),box-shadow .26s var(--ease),border-color .18s ease-out}
.btn i,.btn svg{font-size:15px}
.btn-primary{background:var(--clay-600);color:var(--paper-50);box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--clay-500);color:var(--paper-50);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{background:var(--clay-700);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink-900);border:1.5px solid var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper-50)}
.btn-light{background:var(--paper-50);color:var(--ink-900)}
.btn-light:hover{background:#fff;color:var(--ink-900);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline-light{background:transparent;color:var(--paper-50);border:1.5px solid rgba(251,248,242,.5)}
.btn-outline-light:hover{background:rgba(251,248,242,.12);color:var(--paper-50);border-color:var(--paper-50)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%;justify-content:center}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--clay-600);border-bottom:2px solid var(--clay-600);padding-bottom:2px}
.btn-text:hover{color:var(--clay-700);border-bottom-width:3px}
.btn-text i{transition:transform .26s var(--ease)}
.btn-text:hover i{transform:translateX(4px)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--space-section) 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.section-head h2{margin-bottom:14px}
.eyebrow{font-size:11px;letter-spacing:.16em;color:var(--olive-500);font-weight:700;margin:0 0 12px;text-transform:uppercase}
.lead{font-size:17px;color:var(--text-600);max-width:640px;margin:0}
.hr-line{height:1px;background:var(--paper-200);border:0;margin:0}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-btn);font-size:13px;font-weight:600;line-height:1;background:rgba(110,127,106,.14);color:var(--ink-700)}
.tag-clay{background:rgba(192,85,60,.14);color:var(--clay-700)}
.tag-dark{background:var(--ink-900);color:var(--paper-50)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 64px;background:linear-gradient(180deg,var(--paper-50) 0%,var(--paper-100) 100%);overflow:hidden}
.hero::before{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:520px;border:1px solid rgba(22,33,28,.09);border-radius:220px 220px 0 0;pointer-events:none}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero-title{font-size:52px;line-height:1.16}
.hero-title em{font-style:normal;color:var(--clay-600);position:relative;white-space:nowrap}
.hero-title em::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;background:rgba(192,85,60,.14);z-index:-1}
.hero-sub{font-size:18px;color:var(--text-600);max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-figure{margin:0}
.hero-figure .frame{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--paper-200);box-shadow:var(--shadow-2);background:var(--paper-100);aspect-ratio:4/3}
.hero-figure img{width:100%;height:100%}
.hero-figure figcaption{font-size:13px;color:var(--text-400);text-align:center;margin-top:12px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--paper-200);padding-top:24px}
.hero-stats div{padding-right:18px;border-right:1px solid var(--paper-200)}
.hero-stats div:last-child{border-right:0;padding-right:0}
.hero-stats strong{display:block;font-family:var(--sans);font-size:22px;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.hero-stats span{font-size:13px;color:var(--text-400);display:block;margin-top:2px}

/* ---------- 锚点导航 ---------- */
.anchor-nav{position:sticky;top:62px;z-index:70;background:rgba(251,248,242,.97);border-top:1px solid var(--paper-200);border-bottom:1px solid var(--paper-200)}
.anchor-nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;overflow-x:auto;scrollbar-width:none}
.anchor-nav ul::-webkit-scrollbar{display:none}
.anchor-nav a{display:inline-flex;align-items:center;height:52px;font-size:14px;font-weight:600;color:var(--text-600);white-space:nowrap;border-bottom:2px solid transparent}
.anchor-nav a:hover{color:var(--ink-900)}
.anchor-nav a.current{color:var(--ink-900);border-bottom-color:var(--clay-600)}
section[id]{scroll-margin-top:130px}

/* ---------- 卖点区 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:56px 0;border-bottom:1px solid var(--paper-200)}
.feature-row:last-child{border-bottom:0;padding-bottom:0}
.feature-row:first-child{padding-top:0}
.feature-row.reverse .feature-media{order:-1}
.feature-num{font-family:var(--serif);font-size:28px;color:var(--clay-600);font-weight:700;display:block;margin-bottom:12px;line-height:1}
.feature-body p{color:var(--text-600)}
.feature-media{margin:0}
.feature-media .frame{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--paper-200);aspect-ratio:16/10;background:var(--paper-100)}
.feature-media img{width:100%;height:100%;transition:transform .5s var(--ease)}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-media figcaption{font-size:13px;color:var(--text-400);margin-top:10px}
.bullet-list{list-style:none;padding:0;margin:24px 0 0}
.bullet-list li{position:relative;padding-left:20px;font-size:16px;color:var(--ink-700);margin-bottom:10px}
.bullet-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--clay-600)}

/* ---------- 演示区（深色） ---------- */
.demo{background:var(--ink-900);color:var(--paper-100);padding:var(--space-section) 0;position:relative;overflow:hidden}
.demo::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(251,248,242,.06),transparent 55%);pointer-events:none}
.demo h2,.demo h3{color:var(--paper-50)}
.demo .eyebrow{color:rgba(110,127,106,.95)}
.demo .lead{color:rgba(251,248,242,.72)}
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;position:relative;z-index:1}
.steps{list-style:none;padding:0;margin:0;position:relative}
.steps li{position:relative;padding:0 0 34px 46px;margin:0}
.steps li:last-child{padding-bottom:0}
.steps li::before{content:"";position:absolute;left:13px;top:30px;bottom:6px;width:1px;background:rgba(110,127,106,.55)}
.steps li:last-child::before{display:none}
.steps .num{position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;border:1px solid rgba(192,85,60,.7);color:var(--clay-500);font-size:13px;font-weight:700;display:grid;place-items:center;background:transparent;font-variant-numeric:tabular-nums}
.steps h3{font-size:20px;margin-bottom:8px}
.steps p{color:rgba(251,248,242,.7);font-size:15px;margin:0}
.demo-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.device{background:var(--paper-50);border-radius:10px;padding:14px;border:1px solid rgba(251,248,242,.16);box-shadow:var(--shadow-2)}
.device .bar{display:flex;gap:6px;margin-bottom:12px}
.device .bar span{width:8px;height:8px;border-radius:50%;background:var(--paper-200)}
.device .bar span:first-child{background:rgba(192,85,60,.6)}
.device .screen{border-radius:8px;overflow:hidden;border:1px solid var(--paper-200);aspect-ratio:16/11;background:var(--paper-100)}
.device .screen img{width:100%;height:100%}
.device-note{font-size:13px;color:rgba(251,248,242,.55);text-align:center;margin-top:12px}

/* ---------- 证据区 ---------- */
.data-bar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--paper-200);border-bottom:1px solid var(--paper-200);margin-bottom:56px}
.data-bar div{padding:28px 24px;border-right:1px solid var(--paper-200)}
.data-bar div:last-child{border-right:0}
.data-bar strong{display:block;font-family:var(--sans);font-size:40px;line-height:1.1;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.data-bar strong small{font-size:16px;font-weight:600;color:var(--text-400);margin-left:4px}
.data-bar span{display:block;font-size:14px;color:var(--text-400);margin-top:8px}
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.case-main{background:var(--ink-900);color:var(--paper-100);border-radius:var(--r-lg);padding:40px;position:relative;overflow:hidden}
.case-main::after{content:"";position:absolute;right:-60px;bottom:-80px;width:240px;height:240px;border:1px solid rgba(251,248,242,.12);border-radius:50%}
.case-main blockquote{margin:0 0 24px;font-family:var(--serif);font-size:24px;line-height:1.6;color:var(--paper-50)}
.case-main .who{display:flex;align-items:center;gap:12px;border-top:1px solid rgba(251,248,242,.16);padding-top:20px;font-size:14px;color:rgba(251,248,242,.7)}
.case-main .who b{color:var(--paper-50);font-weight:600}
.case-side{display:grid;gap:24px}
.case-card{background:var(--paper-50);border:1px solid var(--paper-200);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-1);transition:box-shadow .26s var(--ease),transform .26s var(--ease),border-color .18s ease-out}
.case-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:rgba(22,33,28,.28)}
.case-card p{font-size:15px;color:var(--text-600);margin-bottom:16px}
.case-card .who{font-size:13px;color:var(--text-400)}
.logo-wall{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:48px;padding-top:28px;border-top:1px solid var(--paper-200);font-size:14px;color:var(--text-400)}
.logo-wall span{display:inline-flex;align-items:center;gap:18px}
.logo-wall span::after{content:"·";color:var(--paper-200)}
.logo-wall span:last-child::after{content:""}

/* ---------- 资讯区 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--paper-50);border:1px solid var(--paper-200);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .26s var(--ease),transform .26s var(--ease),border-color .18s ease-out;height:100%}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:rgba(22,33,28,.28)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--paper-100)}
.news-thumb img{width:100%;height:100%;transition:transform .5s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-body .tag{align-self:flex-start;margin-bottom:12px}
.news-title{font-size:20px;line-height:1.45;margin:0 0 10px;font-weight:600}
.news-title a{color:var(--ink-900);background-image:linear-gradient(var(--clay-600),var(--clay-600));background-size:0 2px;background-position:0 100%;background-repeat:no-repeat;transition:background-size .3s var(--ease)}
.news-card:hover .news-title a{background-size:100% 2px}
.news-desc{font-size:15px;line-height:1.7;color:var(--text-600);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--paper-200);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-400)}
.news-foot .read{font-size:14px;font-weight:600;color:var(--clay-600);display:inline-flex;align-items:center;gap:6px}
.empty-state{grid-column:1/-1;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:var(--paper-100);border-radius:var(--r-lg);border:1px dashed var(--paper-200);padding:40px 24px;text-align:center}
.empty-state i{font-size:34px;color:var(--paper-200)}
.empty-state h3{font-size:18px;margin:0}
.empty-state p{font-size:15px;color:var(--text-600);margin:0}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{background:var(--paper-50);border:1px solid var(--paper-200);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;height:100%;transition:box-shadow .26s var(--ease),transform .26s var(--ease)}
.price-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.price-card.featured{border:1.5px solid rgba(192,85,60,.55);padding-top:40px;position:relative}
.price-card.featured .badge{position:absolute;top:-13px;left:32px;background:var(--clay-600);color:var(--paper-50);font-size:12px;font-weight:700;letter-spacing:.06em;padding:5px 12px;border-radius:var(--r-btn)}
.price-name{font-size:18px;font-weight:700;color:var(--ink-900);margin:0 0 6px}
.price-amount{font-family:var(--sans);font-size:44px;font-weight:700;line-height:1.1;color:var(--ink-900);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.price-amount small{font-size:14px;font-weight:500;color:var(--text-400);margin-left:6px;letter-spacing:0}
.price-desc{font-size:15px;color:var(--text-600);margin:10px 0 24px}
.price-list{list-style:none;padding:0;margin:0 0 28px;flex:1}
.price-list li{position:relative;padding-left:24px;font-size:15px;color:var(--ink-700);margin-bottom:12px;line-height:1.6}
.price-list li i{position:absolute;left:0;top:4px;font-size:13px;color:var(--olive-500)}
.price-list li.off{color:var(--text-400);text-decoration:line-through;text-decoration-color:rgba(140,141,132,.5)}
.price-list li.off i{color:var(--text-400)}
.price-note{font-size:12px;color:var(--text-400);margin-top:14px;text-align:center}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq{border:1px solid var(--paper-200);border-radius:var(--r-md);overflow:hidden;background:var(--paper-50)}
.faq-item + .faq-item{border-top:1px solid var(--paper-200)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;min-height:64px;padding:18px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);transition:background .18s ease-out}
.faq-q:hover{background:var(--paper-100)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--clay-600);transition:transform .26s var(--ease),opacity .18s ease-out}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:0 24px 22px;background:var(--paper-100);font-size:16px;color:var(--text-600);line-height:1.85}
.faq-a-inner p{padding-top:12px;margin:0}

/* ---------- 结尾 CTA ---------- */
.cta-band{background:var(--ink-900);color:var(--paper-100);position:relative;overflow:hidden;padding:80px 0}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(251,248,242,.05) 0 1px,transparent 1px 14px);pointer-events:none}
.cta-band .inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{color:var(--paper-50);margin-bottom:12px}
.cta-band p{color:rgba(251,248,242,.72);margin:0;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(251,248,242,.78);padding-top:64px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:rgba(110,127,106,.95);font-family:var(--sans);font-weight:700;margin:0 0 18px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:2px}
.footer-col a{color:rgba(251,248,242,.78);font-size:15px;line-height:2.2;display:inline-block;transition:color .18s ease-out}
.footer-col a:hover{color:#fff}
.footer-brand .brand-name{color:var(--paper-50);font-size:19px}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(251,248,242,.6);margin:16px 0 0;max-width:340px}
.footer-rows{border-top:1px solid rgba(251,248,242,.14)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 0;font-size:13px;color:rgba(251,248,242,.45);flex-wrap:wrap}
.footer-bottom a{color:rgba(251,248,242,.6)}
.to-top{width:44px;height:44px;border-radius:50%;border:1px solid rgba(251,248,242,.35);display:grid;place-items:center;color:var(--paper-50);transition:background .18s ease-out,border-color .18s ease-out}
.to-top:hover{background:var(--clay-600);border-color:var(--clay-600);color:#fff}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:32px;bottom:32px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:12px;opacity:0;pointer-events:none;transform:translateY(12px);transition:opacity .26s var(--ease),transform .26s var(--ease)}
.float-cta.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.float-main{display:inline-flex;align-items:center;gap:8px;background:var(--clay-600);color:var(--paper-50);border-radius:999px;padding:14px 24px;font-weight:600;font-size:15px;box-shadow:var(--shadow-2)}
.float-main:hover{background:var(--clay-500);color:var(--paper-50);transform:translateY(-1px)}
.float-top{width:44px;height:44px;border-radius:50%;border:1px solid var(--paper-200);background:var(--paper-50);color:var(--ink-900);display:grid;place-items:center;box-shadow:var(--shadow-1);opacity:0;pointer-events:none;transition:opacity .26s var(--ease),background .18s ease-out,color .18s ease-out}
.float-top.show{opacity:1;pointer-events:auto}
.float-top:hover{background:var(--ink-900);color:var(--paper-50)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(22,33,28,.5);opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s;z-index:100}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;left:0;right:0;z-index:101;background:var(--paper-50);padding:20px 20px 28px;transform:translateY(-100%);transition:transform .3s var(--ease);max-height:100vh;overflow:auto}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--paper-200);display:grid;place-items:center;color:var(--ink-900)}
.drawer nav a{display:flex;align-items:center;min-height:46px;border-bottom:1px solid var(--paper-200);font-size:16px;font-weight:500;color:var(--ink-900)}
.drawer nav a.active{color:var(--clay-600);font-weight:700}
.drawer .btn{margin-top:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--space-section:78px}
  h1{font-size:46px}
  .hero-title{font-size:44px}
  .hero-grid{gap:40px}
  .feature-row{gap:40px}
  .demo-grid{gap:48px}
  .nav-side{gap:16px}
  .nav-link{font-size:14px}
}
@media (max-width:991px){
  :root{--space-section:72px}
  .nav-side{display:none}
  .nav-toggle,.nav-login-mini{display:flex}
  .nav-wrap{grid-template-columns:44px 1fr 44px;height:64px}
  .brand{justify-self:center}
  .brand-sub{display:none}
  .hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:38px}
  .hero-sub{font-size:17px}
  .hero-figure{order:2}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .hero-stats div:nth-child(2){border-right:0}
  .feature-row,.feature-row.reverse{grid-template-columns:1fr;gap:28px}
  .feature-row.reverse .feature-media{order:0}
  .demo-grid{grid-template-columns:1fr;gap:40px}
  .data-bar{grid-template-columns:repeat(2,1fr)}
  .data-bar div:nth-child(2){border-right:0}
  .data-bar div:nth-child(1),.data-bar div:nth-child(2){border-bottom:1px solid var(--paper-200)}
  .case-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px}
  .anchor-nav{top:64px}
  .float-cta{right:20px;bottom:20px}
}
@media (max-width:767px){
  :root{--space-section:56px}
  body{font-size:16px;padding-bottom:72px}
  h1{font-size:34px}
  h2{font-size:26px}
  h3{font-size:20px}
  .container{padding-left:20px;padding-right:20px}
  .topbar .container{min-height:34px;font-size:12px}
  .topbar-note span.txt{display:none}
  .hero-title{font-size:32px}
  .hero-cta .btn{width:100%;justify-content:center}
  .hero-cta{gap:12px}
  .hero-stats strong{font-size:19px}
  .news-grid{grid-template-columns:1fr}
  .data-bar strong{font-size:32px}
  .case-main{padding:28px}
  .case-main blockquote{font-size:19px}
  .faq-q{font-size:16px;padding:16px 18px;min-height:58px}
  .faq-a-inner{padding:0 18px 18px}
  .cta-band{padding:56px 0}
  .cta-actions .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:8px;padding-bottom:24px}
  .footer-col h4{margin:18px 0 8px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .float-cta{left:0;right:0;bottom:0;flex-direction:row;align-items:stretch;gap:0;background:var(--paper-50);border-top:1px solid var(--paper-200);padding:8px 12px calc(8px + env(safe-area-inset-bottom))}
  .float-main{flex:0 0 70%;justify-content:center;border-radius:var(--r-btn);box-shadow:none;padding:12px 16px}
  .float-top{flex:0 0 28%;margin-left:2%;width:auto;height:auto;border-radius:var(--r-btn);box-shadow:none;border:1.5px solid var(--ink-900);font-size:14px;font-weight:600;gap:6px}
  .float-top::after{content:"顶部"}
  .anchor-nav a{height:46px;font-size:13px}
  .anchor-nav ul{gap:20px}
  .price-card{padding:26px}
}
@media (max-width:479px){
  .hero-title{font-size:29px}
  .brand-name{font-size:17px}
  .brand-mark{width:30px;height:30px;flex:0 0 30px}
  .news-body,.price-card{padding:18px}
  .case-card{padding:22px}
  .logo-wall{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink-900:#16211C;
  --ink-700:#2C3A33;
  --ink-500:#4A5A51;
  --paper-50:#FBF8F2;
  --paper-100:#F3EDE2;
  --paper-200:#E7DFD1;
  --clay-600:#C0553C;
  --clay-500:#D4694F;
  --clay-700:#9E4430;
  --olive-500:#6E7F6A;
  --text-900:#191A17;
  --text-600:#5B5C54;
  --text-400:#8C8D84;
  --radius-s:4px;
  --radius-m:10px;
  --radius-l:14px;
  --radius-btn:6px;
  --shadow-card:0 1px 0 rgba(22,33,28,.06);
  --shadow-lift:0 18px 40px -24px rgba(22,33,28,.35);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease:180ms ease-out;
  --ease-move:260ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--text-900);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
body.no-scroll{overflow:hidden;}
img{display:block;max-width:100%;height:auto;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--clay-600);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-family:var(--font-serif);font-weight:600;color:var(--ink-900);letter-spacing:-0.01em;}
p{margin:0 0 18px;}
button{font-family:inherit;}
::selection{background:rgba(192,85,60,.18);}
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--clay-600);
  outline-offset:2px;
  border-radius:var(--radius-s);
}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.skip-link{
  position:absolute;left:-9999px;top:8px;z-index:200;
  background:var(--ink-900);color:var(--paper-50);
  padding:10px 18px;border-radius:var(--radius-btn);font-size:14px;
}
.skip-link:focus{left:16px;color:var(--paper-50);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,248,242,.97);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--paper-200);
  box-shadow:0 10px 24px -22px rgba(22,33,28,.55);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:84px;
  transition:min-height var(--ease);
}
.site-header.is-stuck .header-inner{min-height:64px;}
.nav-left,.nav-right{display:flex;align-items:center;gap:2px;}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-left a,.nav-right a.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 9px;
  font-size:14px;
  font-weight:500;
  color:var(--ink-700);
  white-space:nowrap;
  transition:color var(--ease);
}
.nav-left a::after,.nav-right a.nav-link::after{
  content:"";
  position:absolute;left:9px;right:9px;bottom:2px;
  height:2px;background:var(--clay-600);
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease-move);
}
.nav-left a:hover,.nav-right a.nav-link:hover{color:var(--ink-900);}
.nav-left a:hover::after,.nav-right a.nav-link:hover::after{transform:scaleX(1);}
.nav-left a.is-active,.nav-right a.nav-link.is-active{color:var(--ink-900);}
.nav-left a.is-active::after,.nav-right a.nav-link.is-active::after{transform:scaleX(1);}
.brand{
  display:flex;align-items:center;gap:10px;
  justify-self:center;
  padding:4px 8px;
}
.brand-mark{
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;
  border:1.5px solid var(--ink-900);
  border-radius:17px 17px 4px 4px;
  font-family:var(--font-serif);
  font-size:16px;font-weight:700;color:var(--ink-900);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-family:var(--font-serif);font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--text-400);letter-spacing:.08em;}
.nav-cta{
  margin-left:10px;
  padding:9px 18px !important;
  font-size:14px !important;
  color:var(--paper-50) !important;
}
.nav-cta::after{display:none;}
.nav-toggle{
  display:none;
  background:transparent;border:0;padding:8px;cursor:pointer;
  justify-self:start;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink-900);margin:4px 0;transition:var(--ease);}
.nav-login-mobile{display:none;justify-self:end;font-size:22px;color:var(--ink-900);padding:8px;}

/* mobile drawer */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--paper-50);
  padding:20px 24px 40px;
  overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity var(--ease-move),transform var(--ease-move),visibility var(--ease-move);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--paper-200);background:transparent;
  font-size:18px;color:var(--ink-900);cursor:pointer;
}
.drawer-list li{border-bottom:1px solid var(--paper-200);}
.drawer-list a{display:block;padding:14px 2px;font-size:16px;font-weight:500;color:var(--ink-700);}
.drawer-list a.is-active{color:var(--clay-600);}
.drawer-cta{margin-top:28px;display:block;text-align:center;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease-move),box-shadow var(--ease-move);
}
.btn i{font-size:14px;transition:transform var(--ease-move);}
.btn:hover i{transform:translateX(4px);}
.btn-primary{background:var(--clay-600);color:var(--paper-50);border-color:var(--clay-600);}
.btn-primary:hover{background:var(--clay-500);border-color:var(--clay-500);color:var(--paper-50);transform:translateY(-1px);box-shadow:var(--shadow-lift);}
.btn-primary:active{background:var(--clay-700);border-color:var(--clay-700);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink-900);border:1.5px solid var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper-50);transform:translateY(-1px);}
.btn-ghost:active{background:var(--ink-700);border-color:var(--ink-700);}
.btn-light{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50);}
.btn-light:hover{background:#fff;color:var(--ink-900);transform:translateY(-1px);box-shadow:var(--shadow-lift);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--clay-600);font-size:15px;font-weight:600;
  border-bottom:2px solid var(--clay-600);padding-bottom:2px;
  transition:border-color var(--ease),color var(--ease);
}
.btn-text:hover{border-bottom-width:3px;color:var(--clay-700);}

/* ---------- Badges / tags ---------- */
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 10px;border-radius:var(--radius-btn);
  font-size:13px;font-weight:500;
  background:rgba(110,127,106,.14);color:var(--ink-700);
}
.tag-clay{background:rgba(192,85,60,.13);color:var(--clay-700);}
.tag-ink{background:var(--ink-900);color:var(--paper-50);}

/* ---------- Breadcrumb ---------- */
.breadcrumb-bar{padding:26px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-400);}
.breadcrumb a{color:var(--text-400);}
.breadcrumb a:hover{color:var(--clay-600);}
.breadcrumb .sep{color:var(--paper-200);}
.breadcrumb .current{color:var(--ink-900);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article head ---------- */
.article-main{padding:18px 0 96px;}
.post-head{max-width:780px;margin:0 auto;padding:0 24px;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums;}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--paper-200);}
.post-title{
  font-size:40px;line-height:1.3;font-weight:700;
  margin:18px 0 22px;
  text-wrap:balance;
}
.post-lead{
  font-size:17px;line-height:1.85;color:var(--text-600);
  border-left:3px solid var(--clay-600);
  padding-left:16px;margin:0 0 28px;
}
.figure-hero{margin:0 0 12px;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--paper-200);}
.figure-hero img{width:100%;aspect-ratio:21/9;object-fit:cover;}
.figcaption{font-size:13px;color:var(--text-400);text-align:center;margin:10px 0 0;}

/* ---------- Reading layout ---------- */
.reading-wrap{
  display:grid;
  grid-template-columns:minmax(0,780px) 300px;
  gap:48px;
  align-items:start;
  max-width:1180px;
  margin:40px auto 0;
  padding:0 24px;
}
.reading-wrap > *{min-width:0;}

/* ---------- Article body ---------- */
.article-body{
  font-size:17px;line-height:1.9;color:var(--text-900);
  overflow-wrap:break-word;word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:28px;line-height:1.35;font-weight:600;
  margin:52px 0 16px;padding-top:4px;
}
.article-body h3{font-size:22px;line-height:1.4;margin:34px 0 12px;font-weight:600;}
.article-body h4{font-size:19px;line-height:1.45;margin:26px 0 10px;font-weight:600;}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--clay-600);}
.article-body blockquote{
  margin:26px 0;padding:20px;
  background:var(--paper-100);
  border-left:3px solid var(--olive-500);
  border-radius:0 var(--radius-m) var(--radius-m) 0;
  font-size:18px;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-l);margin:24px 0;width:100%;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-400);text-align:center;margin-top:10px;}
.article-body a{color:var(--clay-600);border-bottom:1px solid var(--clay-600);}
.article-body a:hover{border-bottom-width:2px;color:var(--clay-700);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:var(--paper-100);
  padding:2px 6px;border-radius:var(--radius-s);
  color:var(--ink-700);
}
.article-body pre{
  background:var(--paper-100);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-m);
  padding:16px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:none;padding:0;font-size:14px;}
.article-body table{
  width:100%;border-collapse:collapse;
  border:1px solid var(--paper-200);
  font-size:15px;margin:24px 0;
  border-radius:var(--radius-m);overflow:hidden;
}
.article-body th{
  background:var(--paper-100);color:var(--ink-900);
  font-weight:600;text-align:left;
  padding:12px;border:1px solid var(--paper-200);
  font-size:14px;
}
.article-body td{padding:12px;border:1px solid var(--paper-200);vertical-align:top;}
.article-body tr:nth-child(even) td{background:rgba(243,237,226,.45);}
.article-body hr{border:0;border-top:1px solid var(--paper-200);margin:36px 0;}
.article-body strong{color:var(--ink-900);font-weight:700;}

/* ---------- Aside ---------- */
.post-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.aside-card{
  background:var(--paper-100);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-m);
  padding:20px;
}
.aside-card h3{
  font-family:var(--font-sans);
  font-size:14px;font-weight:700;letter-spacing:.08em;
  color:var(--olive-500);
  margin:0 0 14px;
}
.aside-list li{margin-bottom:12px;}
.aside-list li:last-child{margin-bottom:0;}
.aside-list a{display:block;font-size:15px;line-height:1.6;color:var(--ink-700);}
.aside-list a:hover{color:var(--clay-600);}
.aside-fact{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-600);padding:9px 0;border-bottom:1px dashed var(--paper-200);}
.aside-fact:last-child{border-bottom:0;}
.aside-fact span:last-child{color:var(--ink-900);font-weight:600;font-variant-numeric:tabular-nums;}
.aside-cta{display:flex;flex-direction:column;gap:10px;}
.aside-cta .btn{width:100%;}

/* ---------- Post footer ---------- */
.post-tail{max-width:780px;margin:56px auto 0;padding:0 24px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tail-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;margin-top:28px;padding-top:24px;
  border-top:1px solid var(--paper-200);
}
.tail-bar .note{font-size:14px;color:var(--text-400);}

/* ---------- Related ---------- */
.related-section{background:var(--paper-100);padding:80px 0;margin-top:72px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.section-eyebrow{font-size:11px;letter-spacing:.12em;color:var(--olive-500);font-weight:700;text-transform:uppercase;margin-bottom:10px;}
.section-head h2{font-size:32px;line-height:1.28;}
.related-grid{margin-left:-12px !important;margin-right:-12px !important;}
.related-grid > .cell{padding-left:12px !important;padding-right:12px !important;margin-bottom:24px;}
.info-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--paper-50);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-m);
  overflow:hidden;
  transition:border-color var(--ease),transform var(--ease-move),box-shadow var(--ease-move);
}
.info-card:hover{border-color:rgba(22,33,28,.28);transform:translateY(-3px);box-shadow:var(--shadow-lift);color:inherit;}
.info-card .thumb{overflow:hidden;aspect-ratio:16/10;background:var(--paper-200);}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1);}
.info-card:hover .thumb img{transform:scale(1.03);}
.info-card .card-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.info-card .card-title{
  font-family:var(--font-serif);font-size:20px;line-height:1.45;font-weight:600;
  margin:10px 0 8px;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card .card-desc{
  font-size:15px;line-height:1.7;color:var(--text-600);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card .card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--paper-200);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums;
}
.info-card .card-foot .more{color:var(--clay-600);font-weight:600;font-size:14px;}

/* ---------- CTA strip ---------- */
.cta-strip{padding:0 0 96px;}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:var(--paper-100);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-l);
  padding:36px 40px;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border:1px solid var(--paper-200);border-radius:50%;opacity:.7;pointer-events:none;
}
.cta-inner h2{font-size:26px;line-height:1.35;margin-bottom:8px;}
.cta-inner p{margin:0;font-size:15px;color:var(--text-600);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- Empty state ---------- */
.empty-state{
  min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;
  background:var(--paper-100);
  border:1px dashed var(--paper-200);
  border-radius:var(--radius-l);
  padding:40px 24px;
}
.empty-state .ico{
  width:48px;height:48px;border-radius:50%;
  border:1.5px solid var(--paper-200);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-400);font-size:20px;
}
.empty-state h3{font-size:18px;font-family:var(--font-sans);font-weight:700;margin:0;}
.empty-state p{font-size:15px;color:var(--text-600);margin:0;max-width:420px;}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--clay-600);color:var(--paper-50);
  padding:14px 24px;border-radius:999px;
  font-size:15px;font-weight:600;
  box-shadow:0 18px 40px -24px rgba(22,33,28,.55);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--ease-move),transform var(--ease-move),visibility var(--ease-move),background var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none;}
.float-cta:hover{background:var(--clay-500);color:var(--paper-50);}
.float-cta i{font-size:14px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:var(--paper-50);padding-top:64px;}
.site-footer a{color:rgba(251,248,242,.78);}
.site-footer a:hover{color:var(--paper-50);}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:#9DAF98;margin:0 0 16px;
}
.footer-col ul li{font-size:15px;line-height:2.1;color:rgba(251,248,242,.72);}
.footer-brand .brand-name{
  display:block;font-family:var(--font-serif);font-size:20px;font-weight:700;
  color:var(--paper-50);margin-bottom:12px;letter-spacing:.01em;
}
.footer-brand p{font-size:14px;line-height:1.95;color:rgba(251,248,242,.66);margin:0;max-width:360px;}
.footer-rows{border-top:1px solid rgba(251,248,242,.16);padding:20px 0 28px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(251,248,242,.5);
}
.to-top{
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(251,248,242,.3);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--paper-50);transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.to-top:hover{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50);}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .nav-left a,.nav-right a.nav-link{font-size:13px;padding:8px 7px;}
  .brand-name{font-size:17px;}
}
@media (max-width:1199px){
  .reading-wrap{grid-template-columns:minmax(0,780px);gap:0;justify-content:center;}
  .post-aside{display:none;}
}
@media (max-width:991px){
  .header-inner{min-height:64px;grid-template-columns:auto 1fr auto;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:block;}
  .nav-login-mobile{display:inline-flex;align-items:center;justify-content:flex-end;}
  .brand{justify-self:center;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .post-title{font-size:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .reading-wrap{padding:0 20px;margin-top:28px;}
  .post-head{padding:0 20px;}
  .post-tail{padding:0 20px;}
  .post-title{font-size:30px;line-height:1.32;}
  .post-lead{font-size:16px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:23px;margin-top:38px;}
  .article-body h3{font-size:19px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .related-section{padding:56px 0;margin-top:56px;}
  .section-head h2{font-size:26px;}
  .cta-inner{padding:26px 22px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;
    justify-content:center;padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    width:100%;
  }
  body{padding-bottom:0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:520px){
  .brand-name{font-size:16px;}
  .brand-sub{display:none;}
  .brand-mark{width:30px;height:30px;font-size:14px;}
  .post-title{font-size:26px;}
  .breadcrumb .current{max-width:180px;}
  .info-card .card-body{padding:16px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink-900:#16211C;
  --ink-700:#2C3A33;
  --ink-500:#4A5A51;
  --paper-50:#FBF8F2;
  --paper-100:#F3EDE2;
  --paper-200:#E7DFD1;
  --clay-600:#C0553C;
  --clay-500:#D4694F;
  --clay-700:#9E4430;
  --olive-500:#6E7F6A;
  --text-900:#191A17;
  --text-600:#5B5C54;
  --text-400:#8C8D84;
  --radius-sm:4px;
  --radius-md:6px;
  --radius-lg:10px;
  --radius-xl:14px;
  --shadow-sm:0 1px 0 rgba(22,33,28,.06);
  --shadow-lg:0 18px 40px -24px rgba(22,33,28,.35);
  --section:96px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text-900);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  padding-bottom:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--clay-600);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--clay-700)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;font-weight:700;text-wrap:balance}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
button{font-family:inherit}
button,summary,a:focus-visible,input:focus-visible{outline:none}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--clay-600);
  outline-offset:2px;
  border-radius:4px;
}
::selection{background:rgba(192,85,60,.2);color:var(--ink-900)}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--ink-900);color:var(--paper-50);
  padding:10px 18px;border-radius:0 0 6px 0;font-size:14px;
}
.skip-link:focus{left:0;color:var(--paper-50)}
.eyebrow{
  display:inline-block;
  font-family:"Noto Sans SC",system-ui,sans-serif;
  font-size:11px;
  letter-spacing:.12em;
  color:var(--olive-500);
  font-weight:700;
  margin-bottom:10px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;
  border-radius:var(--radius-md);
  font-size:16px;font-weight:600;letter-spacing:.01em;
  line-height:1.2;
  border:1.5px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .26s cubic-bezier(.2,.7,.3,1),box-shadow .26s cubic-bezier(.2,.7,.3,1);
}
.btn i{font-size:15px;transition:transform .26s cubic-bezier(.2,.7,.3,1)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--clay-600);color:#fff}
.btn-primary:hover{background:var(--clay-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-primary:active{background:var(--clay-700);transform:translateY(0)}
.btn-secondary{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-secondary:hover{background:var(--ink-900);color:var(--paper-50);transform:translateY(-1px)}
.btn-light{background:var(--paper-50);color:var(--ink-900)}
.btn-light:hover{background:var(--paper-100);color:var(--ink-900);transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-outline-light{background:transparent;border-color:rgba(251,248,242,.55);color:var(--paper-50)}
.btn-outline-light:hover{background:rgba(251,248,242,.12);color:var(--paper-50);border-color:var(--paper-50)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(251,248,242,.96);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.site-header.is-scrolled{
  border-bottom-color:var(--paper-200);
  box-shadow:0 6px 18px -14px rgba(22,33,28,.4);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:84px;
  transition:min-height .2s ease-out;
}
.site-header.is-scrolled .header-inner{min-height:64px}
.nav-left ul,.nav-right ul{display:flex;align-items:center;gap:20px}
.nav-left ul{justify-content:flex-end}
.nav-right{display:flex;align-items:center;gap:18px;justify-content:flex-start}
.nav-left a,.nav-right a.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--ink-700);
  font-weight:500;
  white-space:nowrap;
}
.nav-left a::after,.nav-right a.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;background:var(--clay-600);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .26s cubic-bezier(.2,.7,.3,1);
}
.nav-left a:hover,.nav-right a.nav-link:hover{color:var(--ink-900)}
.nav-left a:hover::after,.nav-right a.nav-link:hover::after{transform:scaleX(1)}
.nav-left a.active,.nav-right a.nav-link.active{color:var(--ink-900);font-weight:700}
.nav-left a.active::after,.nav-right a.nav-link.active::after{transform:scaleX(1)}
.brand{
  display:flex;align-items:center;gap:10px;
  justify-self:center;
  color:var(--ink-900);
  text-decoration:none;
}
.brand:hover{color:var(--ink-900)}
.brand-mark{width:30px;height:30px;flex:0 0 30px;color:var(--clay-600)}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-name{
  display:block;
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:20px;font-weight:700;line-height:1.2;
  letter-spacing:.02em;white-space:nowrap;
}
.brand-sub{
  display:block;
  font-size:11px;line-height:1.4;letter-spacing:.08em;
  color:var(--text-400);
  white-space:nowrap;
}
.nav-toggle,.nav-login-mobile{display:none}
.nav-toggle{
  background:transparent;border:1px solid var(--paper-200);
  border-radius:var(--radius-md);
  width:40px;height:40px;
  color:var(--ink-900);font-size:16px;
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--ink-900)}
.nav-login-mobile{
  align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--radius-md);
  background:var(--clay-600);color:#fff;font-size:15px;
}
.nav-login-mobile:hover{background:var(--clay-500);color:#fff}

/* Mobile drawer */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;
  background:rgba(22,33,28,.45);
  opacity:0;visibility:hidden;
  transition:opacity .22s ease-out,visibility .22s ease-out;
}
.mobile-drawer.open{opacity:1;visibility:visible}
.drawer-inner{
  position:absolute;left:0;right:0;top:0;
  background:var(--paper-50);
  padding:20px 24px 32px;
  transform:translateY(-100%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
  max-height:100vh;overflow-y:auto;
}
.mobile-drawer.open .drawer-inner{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-md);
  border:1px solid var(--paper-200);background:#fff;color:var(--ink-900);
  font-size:16px;cursor:pointer;
}
.drawer-close:hover{border-color:var(--ink-900)}
.drawer-nav li{border-bottom:1px solid var(--paper-200)}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;
  font-size:16px;color:var(--ink-700);font-weight:500;
}
.drawer-nav a.active{color:var(--clay-600);font-weight:700}
.drawer-cta{margin-top:24px;width:100%}

/* ============ Breadcrumb ============ */
.breadcrumb{
  font-size:13px;color:var(--text-400);
  padding-top:24px;margin-bottom:8px;
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
}
.breadcrumb a{color:var(--text-400)}
.breadcrumb a:hover{color:var(--clay-600)}
.breadcrumb .sep{color:var(--paper-200)}
.breadcrumb .current{color:var(--ink-900)}

/* ============ Hero ============ */
.page-hero{
  padding:16px 0 80px;
  background:linear-gradient(180deg,var(--paper-50) 0%,var(--paper-100) 100%);
}
.hero-grid{
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:56px;align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:var(--radius-md);
  background:rgba(110,127,106,.12);
  color:var(--ink-700);font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--olive-500)}
.page-hero h1{
  font-size:clamp(32px,3.9vw,52px);
  line-height:1.18;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero-lead{
  font-size:17px;line-height:1.85;color:var(--text-600);
  max-width:560px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-xl);
  border:1px solid var(--paper-200);
  box-shadow:var(--shadow-lg);
}
.visual-badge{
  position:absolute;left:20px;bottom:20px;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--paper-50);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-md);
  padding:8px 14px;font-size:13px;font-weight:600;color:var(--ink-900);
  box-shadow:var(--shadow-sm);
}
.visual-badge i{color:var(--clay-600);font-size:12px}
.trust-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--paper-200);
  padding-top:24px;gap:16px;
}
.trust-item{position:relative;padding-right:16px}
.trust-item+.trust-item{padding-left:20px}
.trust-item+.trust-item::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;
  width:1px;background:var(--paper-200);
}
.trust-num{
  font-family:"Noto Sans SC",system-ui,sans-serif;
  font-size:22px;font-weight:700;color:var(--ink-900);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.trust-num small{font-size:13px;font-weight:500;color:var(--text-600);margin-left:2px}
.trust-label{font-size:13px;color:var(--text-400);line-height:1.5}

/* ============ Sections ============ */
.section{padding:var(--section) 0}
.section-alt{background:var(--paper-100)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{
  font-size:clamp(26px,3vw,36px);
  line-height:1.25;margin-bottom:16px;
}
.section-head p{font-size:16px;color:var(--text-600);line-height:1.8;margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ Entry cards ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.entry-card{
  background:#fff;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:transform .26s cubic-bezier(.2,.7,.3,1),box-shadow .26s ease-out,border-color .18s ease-out;
  display:flex;flex-direction:column;
}
.entry-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(22,33,28,.28);
}
.card-icon{
  width:46px;height:46px;border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  background:rgba(110,127,106,.12);
  color:var(--ink-700);font-size:18px;
  margin-bottom:20px;
}
.entry-card h3{font-size:21px;line-height:1.4;margin-bottom:12px}
.entry-card p{font-size:15px;color:var(--text-600);line-height:1.75;margin-bottom:18px}
.point-list{margin-top:auto;display:flex;flex-direction:column;gap:8px}
.point-list li{
  position:relative;padding-left:16px;
  font-size:14px;color:var(--text-600);line-height:1.6;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;background:var(--clay-600);border-radius:1px;
}
.inline-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 10px;border-radius:var(--radius-md);
  font-size:13px;line-height:1;font-weight:500;
  background:rgba(110,127,106,.12);color:var(--ink-700);
}
.tag.clay{background:rgba(192,85,60,.12);color:var(--clay-700)}

/* ============ Steps ============ */
.steps-layout{
  display:grid;grid-template-columns:220px minmax(0,1fr);
  gap:64px;align-items:start;
}
.steps-nav{position:sticky;top:120px}
.steps-nav .nav-title{
  font-size:11px;letter-spacing:.12em;color:var(--olive-500);
  font-weight:700;margin-bottom:14px;
}
.steps-nav ol{border-left:1px solid var(--paper-200)}
.steps-nav a{
  position:relative;display:block;
  padding:10px 0 10px 18px;
  font-size:15px;color:var(--text-600);
  transition:color .18s ease-out;
}
.steps-nav a:hover{color:var(--ink-900)}
.steps-nav a.active{color:var(--ink-900);font-weight:700}
.steps-nav a.active::before{
  content:"";position:absolute;left:-1px;top:9px;bottom:9px;
  width:2px;background:var(--clay-600);
}
.steps-nav a span{
  display:inline-block;width:26px;
  font-variant-numeric:tabular-nums;color:var(--clay-600);
  font-family:"Noto Sans SC",system-ui,sans-serif;font-size:13px;font-weight:700;
}
.step{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;
  align-items:center;
  padding:40px 0;
  border-top:1px solid var(--paper-200);
  scroll-margin-top:130px;
}
.step:first-child{border-top:0;padding-top:0}
.step:nth-child(even) .step-media{order:-1}
.step-num{
  font-family:"Noto Serif SC",serif;font-size:28px;font-weight:700;
  color:var(--clay-600);line-height:1;margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:clamp(21px,2.2vw,25px);line-height:1.4;margin-bottom:12px}
.step p{font-size:16px;color:var(--text-600);line-height:1.8;margin-bottom:16px}
.step-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-xl);
  border:1px solid var(--paper-200);
  background:var(--paper-100);
}
.step-media figcaption{
  margin-top:10px;font-size:13px;color:var(--text-400);line-height:1.5;
}
.notice{
  margin-top:18px;
  background:var(--paper-100);
  border-left:3px solid var(--clay-600);
  border-radius:var(--radius-sm);
  padding:14px 18px;
  font-size:14px;color:var(--text-600);line-height:1.7;
}
.notice strong{color:var(--ink-900);font-weight:700}

/* ============ Verify grid ============ */
.verify-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.verify-card{
  display:flex;gap:18px;
  background:#fff;border:1px solid var(--paper-200);
  border-radius:var(--radius-lg);padding:26px;
  transition:border-color .18s ease-out,transform .26s cubic-bezier(.2,.7,.3,1),box-shadow .26s ease-out;
}
.verify-card:hover{border-color:rgba(22,33,28,.28);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.verify-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(192,85,60,.1);color:var(--clay-600);font-size:17px;
}
.verify-card h3{font-size:19px;line-height:1.4;margin-bottom:8px}
.verify-card p{font-size:15px;color:var(--text-600);line-height:1.75;margin-bottom:12px}
.meta-line{font-size:13px;color:var(--text-400);display:flex;flex-wrap:wrap;gap:12px}
.meta-line span{display:inline-flex;align-items:center;gap:6px}

/* ============ Table ============ */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-lg);
  background:#fff;
  -webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;min-width:720px}
thead th{
  background:var(--paper-100);
  color:var(--ink-700);
  font-size:14px;font-weight:700;text-align:left;
  padding:14px 18px;letter-spacing:.02em;
  border-bottom:1px solid var(--paper-200);
}
tbody td{
  padding:16px 18px;font-size:15px;color:var(--text-600);
  border-top:1px solid var(--paper-200);vertical-align:top;line-height:1.7;
}
tbody tr:first-child td{border-top:0}
tbody td:first-child{color:var(--ink-900);font-weight:600;width:26%}
tbody tr:hover td{background:rgba(243,237,226,.55)}

/* ============ FAQ ============ */
.faq-list{
  max-width:860px;margin:0 auto;
  background:#fff;border:1px solid var(--paper-200);
  border-radius:var(--radius-lg);overflow:hidden;
}
.faq-item{border-top:1px solid var(--paper-200)}
.faq-item:first-child{border-top:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:18px 24px;
  font-size:17px;font-weight:600;color:var(--ink-900);
  font-family:"Noto Sans SC",system-ui,sans-serif;
  line-height:1.6;
  transition:background .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--paper-50)}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-size:22px;line-height:1;color:var(--clay-600);font-weight:400;
  transition:transform .26s cubic-bezier(.2,.7,.3,1);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{
  background:var(--paper-100);
  border-top:1px solid var(--paper-200);
  padding:20px 24px;
  font-size:16px;color:var(--text-600);line-height:1.85;
}
.faq-body p:last-child{margin-bottom:0}

/* ============ CTA Band ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  color:var(--paper-50);
  padding:80px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.14;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 78% 22%,rgba(251,248,242,.06) 0%,transparent 58%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:720px}
.cta-band h2{
  color:var(--paper-50);
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.28;margin-bottom:16px;
}
.cta-band p{color:rgba(251,248,242,.78);font-size:16px;line-height:1.8;margin-bottom:28px;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-note{
  margin-top:20px;font-size:13px;color:rgba(251,248,242,.55);
  display:flex;align-items:center;gap:8px;
}
.cta-note i{color:rgba(192,85,60,.9)}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink-900);
  color:var(--paper-100);
  padding-top:64px;
  position:relative;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-name{
  font-size:21px;color:var(--paper-50);margin-bottom:14px;
}
.footer-brand p{
  font-size:14px;line-height:1.9;color:rgba(251,248,242,.62);
  max-width:360px;
}
.footer-col h4{
  font-family:"Noto Sans SC",system-ui,sans-serif;
  font-size:12px;letter-spacing:.08em;font-weight:700;
  color:var(--olive-500);
  margin-bottom:18px;
  text-transform:uppercase;
}
.footer-col ul li{
  font-size:15px;line-height:2.2;
  color:rgba(251,248,242,.68);
}
.footer-col ul a{
  color:rgba(251,248,242,.78);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.footer-col ul a:hover{color:var(--paper-50);padding-left:3px}
.footer-rows{border-top:1px solid rgba(251,248,242,.16)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 24px;
  padding:20px 0 24px;
  font-size:13px;color:rgba(251,248,242,.5);
}
.to-top{
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(251,248,242,.28);
  color:var(--paper-100);font-size:14px;
  transition:background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.to-top:hover{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50)}

/* ============ Floating CTA ============ */
.floating-cta{
  position:fixed;right:32px;bottom:32px;z-index:110;
  display:flex;flex-direction:column;gap:10px;align-items:flex-end;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s ease-out,transform .26s ease-out,visibility .26s ease-out;
}
.floating-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-main{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 24px;border-radius:999px;
  background:var(--clay-600);color:#fff;
  font-size:15px;font-weight:600;
  box-shadow:0 14px 30px -14px rgba(22,33,28,.6);
  transition:background .18s ease-out,transform .26s cubic-bezier(.2,.7,.3,1);
}
.float-main:hover{background:var(--clay-500);color:#fff;transform:translateY(-2px)}
.float-top{
  width:44px;height:44px;border-radius:50%;
  background:var(--paper-50);border:1px solid var(--paper-200);
  color:var(--ink-900);font-size:14px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);
  transition:background .18s ease-out,color .18s ease-out,transform .26s ease-out;
}
.float-top:hover{background:var(--ink-900);color:var(--paper-50);transform:translateY(-2px)}

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

/* ============ Responsive ============ */
@media (max-width:1199px){
  .container{max-width:1140px}
  .nav-left ul,.nav-right ul{gap:16px}
  .nav-left a,.nav-right a.nav-link{font-size:14px}
  .brand-name{font-size:18px}
}
@media (max-width:1079px){
  .nav-left,.nav-right{display:none}
  .header-inner{grid-template-columns:40px 1fr 40px;min-height:70px}
  .nav-toggle,.nav-login-mobile{display:inline-flex}
  .nav-toggle{justify-self:start}
  .nav-login-mobile{justify-self:end}
  .brand-name{font-size:18px}
  .brand-sub{display:none}
  .steps-layout{grid-template-columns:1fr;gap:32px}
  .steps-nav{position:static;top:auto}
  .steps-nav .nav-title{display:none}
  .steps-nav ol{
    display:flex;gap:8px;overflow-x:auto;
    border-left:0;padding-bottom:6px;
    -webkit-overflow-scrolling:touch;
  }
  .steps-nav a{
    white-space:nowrap;padding:9px 14px;
    border:1px solid var(--paper-200);border-radius:var(--radius-md);
    background:#fff;font-size:14px;
  }
  .steps-nav a span{width:auto;margin-right:6px}
  .steps-nav a.active{background:var(--ink-900);color:var(--paper-50);border-color:var(--ink-900)}
  .steps-nav a.active::before{display:none}
}
@media (max-width:991px){
  :root{--section:72px}
  .container{padding:0 20px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2;max-width:560px}
  .hero-lead{max-width:none}
  .page-hero{padding-bottom:64px}
  .card-grid{grid-template-columns:1fr 1fr}
  .verify-grid{grid-template-columns:1fr}
  .step{grid-template-columns:1fr;gap:24px}
  .step:nth-child(even) .step-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .footer-brand p{max-width:none}
  .floating-cta{right:20px;bottom:20px}
}
@media (max-width:767px){
  :root{--section:56px}
  body{font-size:16px;padding-bottom:72px}
  h1{font-size:34px}
  .page-hero h1{font-size:34px}
  .hero-actions .btn{flex:1 1 100%}
  .trust-bar{grid-template-columns:1fr 1fr;row-gap:20px;padding-top:20px}
  .trust-item{padding-right:0}
  .trust-item+.trust-item{padding-left:0}
  .trust-item+.trust-item::before{display:none}
  .trust-item:nth-child(even){padding-left:20px;border-left:1px solid var(--paper-200)}
  .card-grid{grid-template-columns:1fr}
  .entry-card{padding:24px}
  .section-head{margin-bottom:32px}
  .cta-band{padding:64px 0}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .floating-cta{
    left:0;right:0;bottom:0;flex-direction:row;align-items:center;
    gap:10px;padding:8px 16px calc(8px + env(safe-area-inset-bottom));
    background:var(--paper-50);border-top:1px solid var(--paper-200);
    transform:translateY(0);
  }
  .float-main{flex:1 1 auto;justify-content:center;border-radius:var(--radius-md);padding:13px 16px}
  .float-top{flex:0 0 48px;width:48px;height:48px;border-radius:var(--radius-md)}
  .table-wrap{box-shadow:inset -12px 0 18px -18px rgba(22,33,28,.4)}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .brand-name{font-size:16px}
  .brand-mark{width:26px;height:26px;flex-basis:26px}
  .page-hero h1{font-size:29px}
  .entry-card,.verify-card{padding:20px}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-body{padding:16px 18px}
  .tag{font-size:12px;height:24px}
  .eyebrow{font-size:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink-900:#16211C;
  --ink-700:#2C3A33;
  --ink-500:#4A5A51;
  --paper-50:#FBF8F2;
  --paper-100:#F3EDE2;
  --paper-200:#E7DFD1;
  --clay-600:#C0553C;
  --clay-500:#D4694F;
  --clay-700:#9E4430;
  --olive-500:#6E7F6A;
  --text-900:#191A17;
  --text-600:#5B5C54;
  --text-400:#8C8D84;
  --radius-sm:4px;
  --radius-md:10px;
  --radius-lg:14px;
  --radius-btn:6px;
  --shadow-card:0 1px 0 rgba(22,33,28,.06);
  --shadow-lift:0 18px 40px -24px rgba(22,33,28,.35);
  --ease:180ms ease-out;
  --ease-move:260ms cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --space-1:24px;
  --space-2:32px;
  --space-3:48px;
  --section:96px;
}

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

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

body{
  margin:0;
  padding-bottom:80px;
  background:var(--paper-50);
  color:var(--text-900);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body.nav-open{overflow:hidden;}

h1,h2,h3,h4{
  font-family:var(--font-serif);
  color:var(--ink-900);
  margin:0;
  text-wrap:balance;
}
h1{font-size:56px;line-height:1.15;letter-spacing:-.01em;font-weight:700;}
h2{font-size:36px;line-height:1.25;font-weight:600;}
h3{font-size:24px;line-height:1.35;font-weight:600;}
h4{font-size:19px;line-height:1.45;font-weight:600;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--clay-600);}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.narrow{max-width:860px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--ink-900);color:var(--paper-50);
  padding:12px 20px;border-radius:0 0 var(--radius-btn) 0;
  font-size:14px;
}
.skip-link:focus{left:0;color:var(--paper-50);}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(251,248,242,.96);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease),height var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--paper-200);
  box-shadow:0 8px 24px -20px rgba(22,33,28,.45);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:20px;
  height:84px;
  transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}

.nav-left,.nav-right{display:flex;align-items:center;gap:22px;}
.nav-left{justify-self:end;}
.nav-right{justify-self:start;}

.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-700);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:2px;background:var(--clay-600);
  transition:width var(--ease-move);
}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--ink-900);font-weight:700;}
.nav-link.active::after{width:100%;}

.brand{
  display:flex;align-items:center;gap:10px;
  justify-self:center;
  color:var(--ink-900);
}
.brand:hover{color:var(--ink-900);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  border:1.5px solid var(--clay-600);
  border-radius:17px 17px 4px 4px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:16px;font-weight:700;color:var(--clay-600);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-family:var(--font-serif);font-size:18px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:12px;color:var(--text-400);font-weight:400;letter-spacing:.04em;}

.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--clay-600);color:var(--paper-50);
  font-size:15px;font-weight:600;
  padding:10px 20px;border-radius:var(--radius-btn);
  border:1px solid var(--clay-600);
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.nav-cta:hover{
  background:var(--clay-500);color:var(--paper-50);
  transform:translateY(-1px);
  box-shadow:var(--shadow-lift);
}
.nav-cta i{font-size:13px;transition:transform var(--ease-move);}
.nav-cta:hover i{transform:translateX(4px);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  background:transparent;border:1px solid var(--paper-200);
  border-radius:var(--radius-sm);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink-900);transition:transform var(--ease-move),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

.mobile-only-cta{display:none;}

.mobile-drawer{
  position:fixed;inset:0;z-index:190;
  background:var(--paper-50);
  padding:96px 24px 40px;
  transform:translateX(100%);
  transition:transform var(--ease-move);
  overflow-y:auto;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-list li{border-bottom:1px solid var(--paper-200);}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;font-size:16px;font-weight:500;color:var(--ink-900);
}
.drawer-list a.active{color:var(--clay-600);}
.drawer-list a i{font-size:12px;color:var(--text-400);}
.drawer-cta{
  margin-top:28px;display:flex;align-items:center;justify-content:center;gap:8px;
  background:var(--clay-600);color:var(--paper-50);
  height:48px;border-radius:var(--radius-btn);font-weight:600;font-size:16px;
}
.drawer-cta:hover{background:var(--clay-500);color:var(--paper-50);}

/* ============ HERO ============ */
.page-hero{
  position:relative;
  padding:150px 0 88px;
  background-image:linear-gradient(rgba(251,248,242,.93),rgba(251,248,242,.97)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--paper-200);
}
.breadcrumbs{
  font-size:13px;
  color:var(--text-400);
  margin-bottom:24px;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.breadcrumbs a{color:var(--text-400);}
.breadcrumbs a:hover{color:var(--clay-600);}
.breadcrumbs .sep{color:var(--paper-200);}
.breadcrumbs .current{color:var(--ink-900);}

.eyebrow{
  display:inline-block;
  font-size:11px;letter-spacing:.12em;
  color:var(--olive-500);font-weight:600;
  text-transform:uppercase;
  margin-bottom:16px;
}
.hero-title{max-width:19ch;margin-bottom:24px;}
.hero-lead{
  font-size:18px;line-height:1.85;color:var(--text-600);
  max-width:56ch;margin-bottom:32px;
  border-left:3px solid var(--clay-600);
  padding-left:16px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:600;letter-spacing:.01em;
  padding:14px 26px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn i{font-size:14px;transition:transform var(--ease-move);}
.btn:hover i{transform:translateX(4px);}
.btn-primary{background:var(--clay-600);color:var(--paper-50);border-color:var(--clay-600);}
.btn-primary:hover{background:var(--clay-500);color:var(--paper-50);transform:translateY(-1px);box-shadow:var(--shadow-lift);}
.btn-primary:active{background:var(--clay-700);}
.btn-secondary{background:transparent;color:var(--ink-900);border-color:var(--ink-900);}
.btn-secondary:hover{background:var(--ink-900);color:var(--paper-50);transform:translateY(-1px);}
.btn-light{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50);}
.btn-light:hover{background:var(--paper-100);color:var(--ink-900);transform:translateY(-1px);}
.btn-text{
  color:var(--clay-600);font-weight:600;font-size:16px;
  border-bottom:2px solid var(--clay-600);
  padding:0 0 3px;background:none;border-radius:0;border-left:none;border-right:none;border-top:none;
}
.btn-text:hover{color:var(--clay-500);border-bottom-width:3px;}

.trust-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--paper-200);
  padding-top:28px;
  gap:0;
  max-width:820px;
}
.trust-item{
  padding:0 24px;
  border-left:1px solid var(--paper-200);
}
.trust-item:first-child{padding-left:0;border-left:none;}
.trust-num{
  font-family:var(--font-sans);
  font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:700;color:var(--ink-900);line-height:1.2;
}
.trust-num small{font-size:14px;font-weight:500;color:var(--text-400);margin-left:4px;}
.trust-label{font-size:14px;color:var(--text-600);line-height:1.5;}

/* ============ SECTION BASE ============ */
.section{padding:var(--section) 0;}
.section-alt{background:var(--paper-100);border-top:1px solid var(--paper-200);border-bottom:1px solid var(--paper-200);}
.section-head{max-width:720px;margin-bottom:var(--space-3);}
.section-head h2{margin-bottom:16px;}
.section-head p{color:var(--text-600);font-size:17px;}

/* ============ STEPS ============ */
.steps-layout{
  display:grid;
  grid-template-columns:250px 1fr;
  gap:64px;
  align-items:start;
}
.step-nav{
  position:sticky;
  top:110px;
  border-left:1px solid var(--paper-200);
  padding-left:0;
}
.step-nav li{border-bottom:1px solid var(--paper-200);}
.step-nav li:first-child{border-top:1px solid var(--paper-200);}
.step-nav a{
  display:flex;align-items:baseline;gap:12px;
  padding:16px 12px 16px 18px;
  font-size:15px;font-weight:500;color:var(--text-600);
  position:relative;
  transition:color var(--ease),background var(--ease);
}
.step-nav a::before{
  content:"";position:absolute;left:-1px;top:0;bottom:0;width:2px;
  background:transparent;transition:background var(--ease);
}
.step-nav a span{
  font-family:var(--font-sans);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--clay-600);
}
.step-nav a:hover{color:var(--ink-900);background:rgba(243,237,226,.6);}
.step-nav a.current{color:var(--ink-900);font-weight:700;background:var(--paper-100);}
.step-nav a.current::before{background:var(--clay-600);}

.step-block{
  padding-bottom:56px;
  margin-bottom:56px;
  border-bottom:1px solid var(--paper-200);
  scroll-margin-top:130px;
}
.step-block:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0;}
.step-head{display:flex;align-items:baseline;gap:16px;margin-bottom:20px;}
.step-no{
  font-family:var(--font-serif);
  font-size:28px;font-weight:700;color:var(--clay-600);
  line-height:1;flex:0 0 auto;
  font-variant-numeric:tabular-nums;
}
.step-head h2{font-size:30px;line-height:1.3;}
.step-block p{max-width:64ch;color:var(--text-900);}

.shot{
  margin:28px 0 24px;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--paper-100);
  box-shadow:var(--shadow-card);
}
.shot img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform var(--ease-move);
}
.shot:hover img{transform:scale(1.02);}
.shot figcaption{
  font-size:13px;color:var(--text-400);
  padding:10px 16px;
  background:var(--paper-50);
  border-top:1px solid var(--paper-200);
}

.tip{
  background:var(--paper-100);
  border-left:3px solid var(--clay-600);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:18px 20px;
  font-size:15px;line-height:1.8;color:var(--ink-700);
}
.tip strong{color:var(--ink-900);font-weight:700;display:block;margin-bottom:4px;font-size:14px;letter-spacing:.02em;}

/* ============ TABLE ============ */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-lg);
  background:var(--paper-50);
}
table.spec-table{
  width:100%;
  border-collapse:collapse;
  min-width:620px;
  font-size:15px;
}
.spec-table thead th{
  background:var(--paper-100);
  color:var(--ink-900);
  font-weight:600;
  font-size:14px;
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--paper-200);
  white-space:nowrap;
}
.spec-table tbody td{
  padding:16px 20px;
  border-bottom:1px solid var(--paper-200);
  color:var(--text-600);
  vertical-align:top;
}
.spec-table tbody tr:last-child td{border-bottom:none;}
.spec-table tbody td:first-child{color:var(--ink-900);font-weight:600;}
.spec-table .num{font-variant-numeric:tabular-nums;}

/* ============ INFO GRID ============ */
.info-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:var(--space-2);
}
.info-card{
  background:var(--paper-50);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-md);
  padding:26px 24px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.info-card:hover{
  border-color:rgba(22,33,28,.28);
  transform:translateY(-3px);
  box-shadow:var(--shadow-lift);
}
.info-card .ic{
  font-size:20px;color:var(--clay-600);
  margin-bottom:14px;
}
.info-card h3{font-size:19px;margin-bottom:10px;}
.info-card p{font-size:15px;color:var(--text-600);line-height:1.8;}

/* ============ FAQ ============ */
.faq{
  max-width:860px;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-md);
  background:var(--paper-50);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--paper-200);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;
  font-size:17px;font-weight:600;color:var(--ink-900);
  cursor:pointer;list-style:none;
  transition:color var(--ease),background var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--clay-600);background:rgba(243,237,226,.5);}
.faq-item summary::after{
  content:"+";
  font-size:22px;font-weight:400;color:var(--clay-600);
  line-height:1;flex:0 0 auto;
  transition:transform var(--ease-move);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{
  background:var(--paper-100);
  padding:20px 24px;
  font-size:16px;line-height:1.85;color:var(--text-600);
}

/* ============ CTA BAND ============ */
.cta-band{
  background:var(--ink-900);
  color:var(--paper-50);
  padding:80px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(251,248,242,.05) 0 1px,transparent 1px 10px);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-band h2{color:var(--paper-50);margin-bottom:12px;font-size:32px;}
.cta-band p{color:rgba(251,248,242,.78);font-size:16px;margin:0;max-width:52ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--ink-900);
  color:var(--paper-50);
  padding:64px 0 32px;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:14px;font-weight:600;letter-spacing:.08em;
  color:var(--olive-500);
  margin-bottom:18px;
  text-transform:none;
}
.footer-col ul li{
  line-height:2.2;
  color:rgba(251,248,242,.78);
  font-size:15px;
}
.footer-col ul li a{color:rgba(251,248,242,.78);}
.footer-col ul li a:hover{color:var(--paper-50);}
.footer-brand .brand-name{
  display:block;
  font-family:var(--font-serif);
  font-size:20px;font-weight:700;color:var(--paper-50);
  margin-bottom:14px;
}
.footer-brand p{
  font-size:15px;line-height:1.9;
  color:rgba(251,248,242,.7);
  max-width:40ch;
  margin:0;
}
.footer-rows{border-top:1px solid rgba(251,248,242,.16);padding-top:24px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;
  font-size:13px;color:rgba(251,248,242,.55);
}
.to-top{
  width:44px;height:44px;flex:0 0 44px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(251,248,242,.28);
  border-radius:50%;
  color:rgba(251,248,242,.8);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.to-top:hover{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50);}

/* ============ FLOAT CTA ============ */
.float-cta{
  position:fixed;
  right:32px;bottom:32px;
  z-index:150;
  display:flex;flex-direction:column;gap:12px;
  opacity:0;pointer-events:none;
  transform:translateY(10px);
  transition:opacity var(--ease-move),transform var(--ease-move);
}
.float-cta.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--clay-600);color:var(--paper-50);
  padding:12px 22px;border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid var(--clay-600);
  box-shadow:var(--shadow-lift);
  transition:background var(--ease),transform var(--ease);
}
.float-btn:hover{background:var(--clay-500);color:var(--paper-50);transform:translateY(-2px);}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  .container{max-width:1140px;}
  .steps-layout{grid-template-columns:210px 1fr;gap:48px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
}

@media (max-width:991px){
  h1{font-size:42px;}
  h2{font-size:30px;}
  :root{--section:72px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;justify-self:start;}
  .mobile-only-cta{display:inline-flex;justify-self:end;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--paper-200);border-radius:var(--radius-sm);color:var(--ink-900);}
  .mobile-only-cta:hover{color:var(--clay-600);}
  .header-inner{grid-template-columns:1fr auto 1fr;}
  .page-hero{padding:120px 0 64px;}
  .steps-layout{grid-template-columns:1fr;gap:32px;}
  .step-nav{
    position:static;
    border-left:none;
    border-top:1px solid var(--paper-200);
    display:flex;overflow-x:auto;gap:0;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .step-nav::-webkit-scrollbar{display:none;}
  .step-nav li{border-bottom:none;border-right:1px solid var(--paper-200);flex:0 0 auto;}
  .step-nav li:first-child{border-top:none;border-left:1px solid var(--paper-200);}
  .step-nav a{padding:14px 18px;white-space:nowrap;}
  .step-nav a::before{top:auto;bottom:0;left:0;right:0;width:auto;height:2px;}
  .info-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}

@media (max-width:767px){
  body{font-size:16px;padding-bottom:72px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  h3{font-size:20px;}
  :root{--section:56px;}
  .container{padding:0 20px;}
  .page-hero{padding:104px 0 56px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .trust-bar{grid-template-columns:repeat(2,1fr);row-gap:24px;}
  .trust-item{padding:0 16px;}
  .trust-item:nth-child(odd){padding-left:0;border-left:none;}
  .trust-num{font-size:26px;}
  .step-head h2{font-size:24px;}
  .step-block{padding-bottom:40px;margin-bottom:40px;}
  .info-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col ul li{line-height:2;}
  .cta-band h2{font-size:26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .float-cta{
    right:0;left:0;bottom:0;
    flex-direction:row;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(251,248,242,.97);
    border-top:1px solid var(--paper-200);
  }
  .float-btn{width:100%;justify-content:center;border-radius:var(--radius-btn);box-shadow:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .to-top{align-self:flex-end;}
}

@media (max-width:480px){
  .brand-name{font-size:16px;}
  .brand-sub{font-size:11px;}
  .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:14px;}
  .info-card{padding:20px 16px;}
  .faq-item summary{padding:16px 18px;font-size:16px;}
  .faq-body{padding:16px 18px;font-size:15px;}
  .step-nav a span{font-size:12px;}
}

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

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root{
  --ink-900:#16211C;
  --ink-700:#2C3A33;
  --ink-500:#4A5A51;
  --paper-50:#FBF8F2;
  --paper-100:#F3EDE2;
  --paper-200:#E7DFD1;
  --clay-600:#C0553C;
  --clay-500:#D4694F;
  --clay-700:#9E4430;
  --olive-500:#6E7F6A;
  --text-900:#191A17;
  --text-600:#5B5C54;
  --text-400:#8C8D84;
  --radius-sm:4px;
  --radius-md:10px;
  --radius-lg:14px;
  --radius-btn:6px;
  --shadow-1:0 1px 0 rgba(22,33,28,.06);
  --shadow-2:0 18px 40px -24px rgba(22,33,28,.35);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease-out:180ms ease-out;
  --ease-move:260ms cubic-bezier(.2,.7,.3,1);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--text-900);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;line-height:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:3px}
::selection{background:rgba(192,85,60,.18)}

/* ===================== 通用容器 ===================== */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.narrow{max-width:860px;margin:0 auto}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:300;
  background:var(--ink-900);color:var(--paper-50);
  padding:12px 22px;border-radius:0 0 6px 0;font-size:14px;font-weight:600;
}
.skip-link:focus{left:0}

/* ===================== 顶部信息条 ===================== */
.topbar{background:var(--ink-900);color:var(--paper-100);font-size:13px;letter-spacing:.01em}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:36px;flex-wrap:wrap}
.topbar .tb-left{display:inline-flex;align-items:center;gap:8px;color:rgba(251,248,242,.82)}
.topbar .tb-left i{color:#D8A192;font-size:12px}
.topbar a{color:var(--paper-50);border-bottom:1px solid rgba(251,248,242,.35);padding-bottom:1px;transition:color var(--ease-out),border-color var(--ease-out)}
.topbar a:hover{color:#F0C4B7;border-color:#F0C4B7}

/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,248,242,.96);
  border-bottom:1px solid var(--paper-200);
  transition:box-shadow var(--ease-out);
}
.site-header.scrolled{box-shadow:0 8px 24px -20px rgba(22,33,28,.5)}
.nav-shell{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:84px;
  transition:min-height var(--ease-out);
}
.site-header.scrolled .nav-shell{min-height:68px}

.nav-group{display:flex;align-items:center;gap:22px}
.nav-group.nav-left{justify-content:flex-end}
.nav-group.nav-right{justify-content:flex-start}
.nav-link{
  position:relative;
  font-size:14px;font-weight:500;color:var(--ink-700);
  padding:6px 0;white-space:nowrap;
  transition:color var(--ease-out);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--clay-600);
  transition:width var(--ease-move);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--ink-900);font-weight:700}
.nav-link.active::after{width:100%}

/* Logo */
.brand{display:flex;align-items:center;gap:11px;justify-self:center}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--paper-200);border-radius:9px;
  background:var(--paper-100);color:var(--clay-600);
  transition:border-color var(--ease-out),transform var(--ease-move);
}
.brand-mark svg{width:22px;height:22px}
.brand:hover .brand-mark{border-color:rgba(192,85,60,.45);transform:translateY(-1px)}
.brand-name{
  display:block;font-family:var(--font-serif);font-weight:700;
  font-size:17px;line-height:1.2;color:var(--ink-900);letter-spacing:.01em;
}
.brand-sub{display:block;font-size:11px;line-height:1.5;color:var(--text-400);letter-spacing:.06em;margin-top:2px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:600;letter-spacing:.01em;
  padding:14px 26px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:background var(--ease-out),color var(--ease-out),border-color var(--ease-out),transform var(--ease-move),box-shadow var(--ease-move);
}
.btn i{font-size:15px;transition:transform var(--ease-move)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--clay-600);color:#FFF9F3;box-shadow:0 1px 0 rgba(22,33,28,.06)}
.btn-primary:hover{background:var(--clay-500);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{background:var(--clay-700);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink-900);border:1.5px solid var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper-50);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:var(--paper-50);color:var(--ink-900);border:1.5px solid var(--paper-50)}
.btn-light:hover{background:var(--paper-100);border-color:var(--paper-100);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline-light{background:transparent;color:var(--paper-50);border:1.5px solid rgba(251,248,242,.5)}
.btn-outline-light:hover{background:rgba(251,248,242,.12);border-color:var(--paper-50);transform:translateY(-1px)}
.btn-sm{font-size:14px;padding:10px 18px;border-radius:var(--radius-btn)}
.btn-block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--clay-600);font-weight:600;font-size:15px;
  border-bottom:2px solid var(--clay-600);padding-bottom:2px;
  transition:border-color var(--ease-out),color var(--ease-out);
}
.link-more:hover{border-bottom-width:3px;color:var(--clay-700)}
.link-more i{font-size:13px;transition:transform var(--ease-move)}
.link-more:hover i{transform:translateX(4px)}

/* 移动端菜单按钮 */
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--paper-200);border-radius:8px;background:var(--paper-50);color:var(--ink-900);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-ico{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--paper-200);border-radius:8px;background:var(--paper-50);color:var(--clay-600);
  justify-self:end;
}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(22,33,28,.55);
  opacity:0;pointer-events:none;transition:opacity var(--ease-move);
}
.drawer.open{opacity:1;pointer-events:auto}
.drawer-panel{
  position:absolute;top:0;left:0;right:0;
  background:var(--paper-50);
  border-bottom:1px solid var(--paper-200);
  padding:20px 24px 28px;
  transform:translateY(-12px);opacity:0;
  transition:transform var(--ease-move),opacity var(--ease-move);
  max-height:100vh;overflow-y:auto;
}
.drawer.open .drawer-panel{transform:translateY(0);opacity:1}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--paper-200)}
.drawer-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--paper-200);border-radius:8px;color:var(--ink-900)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;font-size:15px;font-weight:500;color:var(--ink-700);
  border-bottom:1px solid var(--paper-200);
}
.drawer-link.active{color:var(--clay-600);font-weight:700}
.drawer-link i{font-size:12px;color:var(--text-400)}
.drawer .btn{margin-top:20px}

/* ===================== 面包屑 ===================== */
.crumbs{padding:24px 0 16px;font-size:13px;color:var(--text-400)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li::after{content:"/";margin-left:8px;color:var(--paper-200)}
.crumbs li:last-child::after{content:""}
.crumbs a{transition:color var(--ease-out)}
.crumbs a:hover{color:var(--clay-600)}
.crumbs .current{color:var(--ink-900);font-weight:500}

/* ===================== Hero 深色首屏 ===================== */
.hero-dark{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  color:var(--paper-50);
  padding:76px 0 68px;
}
.hero-dark::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.28;
}
.hero-dark::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,33,28,.62) 0%,rgba(22,33,28,.94) 100%);
}
.hero-dark .container{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11px;letter-spacing:.14em;font-weight:600;
  color:#BFD0B8;text-transform:uppercase;
  border:1px solid rgba(110,127,106,.55);
  background:rgba(110,127,106,.16);
  padding:5px 12px;border-radius:6px;margin-bottom:22px;
}
.hero-dark h1{
  font-family:var(--font-serif);font-weight:700;
  font-size:56px;line-height:1.15;letter-spacing:-.01em;
  max-width:16em;text-wrap:balance;color:var(--paper-50);
}
.hero-dark h1 em{font-style:normal;color:#E7A48F}
.hero-lede{
  margin-top:22px;max-width:660px;
  font-size:17px;line-height:1.85;color:rgba(251,248,242,.82);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:52px;padding-top:30px;
  border-top:1px solid rgba(251,248,242,.18);
  max-width:760px;
}
.hero-stats .num{
  font-family:var(--font-sans);font-weight:700;font-size:40px;line-height:1.1;
  color:var(--paper-50);font-variant-numeric:tabular-nums;
}
.hero-stats .num small{font-size:15px;font-weight:500;color:rgba(251,248,242,.62);margin-left:6px}
.hero-stats .cap{font-size:14px;color:rgba(251,248,242,.66);margin-top:6px;line-height:1.6}

/* ===================== 板块通用 ===================== */
.section{padding:96px 0}
.section-alt{background:var(--paper-100)}
.section-head{max-width:720px;margin-bottom:48px}
.eyebrow{
  display:block;font-size:11px;font-weight:600;letter-spacing:.14em;
  color:var(--olive-500);text-transform:uppercase;margin-bottom:14px;
}
.h2{
  font-family:var(--font-serif);font-weight:600;
  font-size:36px;line-height:1.25;color:var(--ink-900);text-wrap:balance;
}
.lede{margin-top:16px;font-size:16px;line-height:1.8;color:var(--text-600);max-width:660px}
.rule{height:1px;background:var(--paper-200);border:0;margin:0}

/* ===================== 2×2 安全能力网格 ===================== */
.grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cap-card{
  background:var(--paper-50);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-lg);
  padding:32px;
  box-shadow:var(--shadow-1);
  transition:border-color var(--ease-out),transform var(--ease-move),box-shadow var(--ease-move);
}
.cap-card:hover{
  border-color:rgba(22,33,28,.28);
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
}
.cap-icon{
  width:44px;height:44px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(110,127,106,.12);
  color:var(--ink-700);font-size:20px;
  border:1px solid rgba(110,127,106,.28);
  margin-bottom:20px;
}
.cap-card h3{
  font-family:var(--font-serif);font-size:22px;line-height:1.35;font-weight:600;color:var(--ink-900);
}
.cap-card p{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--text-600)}
.cap-divider{height:1px;background:var(--paper-200);margin:22px 0 18px}
.cap-tags{display:flex;flex-wrap:wrap;gap:8px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:6px;
  font-size:13px;font-weight:600;white-space:nowrap;
}
.badge-olive{background:rgba(110,127,106,.14);color:#3F4C3C;border:1px solid rgba(110,127,106,.3)}
.badge-clay{background:rgba(192,85,60,.12);color:var(--clay-700);border:1px solid rgba(192,85,60,.32)}
.badge-ink{background:var(--ink-900);color:var(--paper-50);border:1px solid var(--ink-900)}

/* ===================== 安全状态面板 ===================== */
.status-panel{
  background:var(--ink-900);
  color:var(--paper-50);
  border-radius:var(--radius-lg);
  padding:48px;
  position:relative;overflow:hidden;
  background-image:radial-gradient(circle at 88% 6%,rgba(192,85,60,.18),transparent 55%);
}
.status-panel h3{
  font-family:var(--font-serif);font-size:24px;font-weight:600;color:var(--paper-50);line-height:1.35;
}
.status-panel .sp-note{margin-top:10px;font-size:15px;color:rgba(251,248,242,.68);max-width:640px}
.status-list{margin-top:32px;border-top:1px solid rgba(251,248,242,.16)}
.status-row{
  display:grid;grid-template-columns:1.25fr 1fr auto;gap:16px;align-items:center;
  padding:18px 0;border-bottom:1px solid rgba(251,248,242,.14);
  transition:background var(--ease-out);
}
.status-row:hover{background:rgba(251,248,242,.04)}
.status-row .s-name{font-size:16px;font-weight:600;color:var(--paper-50)}
.status-row .s-desc{font-size:14px;color:rgba(251,248,242,.62);font-variant-numeric:tabular-nums}
.badge-ok{background:rgba(110,127,106,.22);color:#CFE0C8;border:1px solid rgba(110,127,106,.55)}
.badge-warn{background:rgba(192,85,60,.2);color:#F0C4B7;border:1px solid rgba(192,85,60,.55)}
.status-foot{
  margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.status-foot p{font-size:14px;color:rgba(251,248,242,.6);max-width:520px}

/* ===================== 时间轴 ===================== */
.timeline{max-width:820px;margin:0 auto;position:relative;padding-left:36px}
.timeline::before{
  content:"";position:absolute;left:4px;top:10px;bottom:14px;width:1px;
  background:linear-gradient(180deg,var(--paper-200) 0%,var(--olive-500) 100%);
}
.tl-item{position:relative;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:9px;
  width:9px;height:9px;border-radius:50%;
  background:var(--clay-600);
  box-shadow:0 0 0 4px rgba(192,85,60,.12);
}
.tl-num{
  font-family:var(--font-sans);font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--clay-600);font-variant-numeric:tabular-nums;
}
.tl-item h3{
  font-family:var(--font-serif);font-size:21px;font-weight:600;line-height:1.4;
  color:var(--ink-900);margin-top:6px;
}
.tl-item p{margin-top:10px;font-size:15.5px;line-height:1.8;color:var(--text-600);max-width:640px}

/* ===================== 图文分栏 ===================== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-figure{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--paper-200);
  background:var(--paper-100);
  aspect-ratio:4/3;
}
.split-figure img{width:100%;height:100%;object-fit:cover;transition:transform 460ms var(--ease-move)}
.split-figure:hover img{transform:scale(1.03)}
.split-caption{font-size:13px;color:var(--text-400);margin-top:12px;text-align:center}
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{position:relative;padding-left:22px;font-size:15.5px;line-height:1.8;color:var(--text-600)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;background:var(--clay-600);border-radius:1px;
}
.split h2{margin-top:0}
.split .lede{margin-top:18px}

/* ===================== FAQ ===================== */
.faq{max-width:860px;margin:0 auto;border:1px solid var(--paper-200);border-radius:var(--radius-md);overflow:hidden;background:var(--paper-50)}
.faq-item + .faq-item{border-top:1px solid var(--paper-200)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;text-align:left;min-height:64px;padding:18px 24px;
  font-size:17px;font-weight:600;color:var(--ink-900);
  transition:background var(--ease-out),color var(--ease-out);
}
.faq-q:hover{background:var(--paper-100)}
.faq-q .faq-icon{
  flex:0 0 auto;font-size:20px;line-height:1;color:var(--clay-600);font-weight:400;
  transition:transform var(--ease-move);
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height var(--ease-move);
  background:var(--paper-100);
}
.faq-a p{padding:0 24px 22px;font-size:16px;line-height:1.85;color:var(--text-600)}
.faq-item.open .faq-q{color:var(--clay-700)}

/* ===================== CTA 条 ===================== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:var(--paper-50);
  border-radius:var(--radius-lg);
  padding:64px 48px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.png) center/cover no-repeat;
  opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(251,248,242,.05) 0 1px,transparent 1px 9px);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{
  font-family:var(--font-serif);font-size:34px;line-height:1.3;font-weight:600;color:var(--paper-50);
  text-wrap:balance;max-width:20em;margin:0 auto;
}
.cta-band p{margin-top:16px;font-size:16px;color:rgba(251,248,242,.75);max-width:600px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}

/* ===================== 浮动 CTA ===================== */
.float-dock{
  position:fixed;right:32px;bottom:32px;z-index:90;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
}
.btn-float{
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 26px;border-radius:999px;
  background:var(--clay-600);color:#FFF9F3;
  font-size:15px;font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity var(--ease-move),transform var(--ease-move),background var(--ease-out);
}
.btn-float.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.btn-float:hover{background:var(--clay-500)}
.to-top-float{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper-50);color:var(--ink-900);
  border:1px solid var(--paper-200);
  box-shadow:var(--shadow-1);
  opacity:0;pointer-events:none;
  transition:opacity var(--ease-move),background var(--ease-out),color var(--ease-out),transform var(--ease-out);
}
.to-top-float.show{opacity:1;pointer-events:auto}
.to-top-float:hover{background:var(--ink-900);color:var(--paper-50);border-color:var(--ink-900);transform:translateY(-2px)}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--ink-900);color:var(--paper-50);padding:64px 0 26px;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-col h4{
  font-size:14px;font-weight:600;letter-spacing:.08em;
  color:var(--olive-500);text-transform:uppercase;margin-bottom:18px;
}
.footer-brand .brand-name{
  font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--paper-50);display:block;
}
.footer-brand p{margin-top:14px;font-size:14.5px;line-height:1.9;color:rgba(251,248,242,.66);max-width:340px}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:15px;line-height:1.7;color:rgba(251,248,242,.72)}
.footer-col a{color:rgba(251,248,242,.72);transition:color var(--ease-out),border-color var(--ease-out);border-bottom:1px solid transparent;padding-bottom:1px}
.footer-col a:hover{color:var(--paper-50);border-color:var(--clay-500)}
.footer-rows{border-top:1px solid rgba(251,248,242,.16);padding-top:22px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(251,248,242,.48);
}
.footer-bottom .to-top{
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(251,248,242,.28);color:var(--paper-50);
  transition:background var(--ease-out),transform var(--ease-out),border-color var(--ease-out);
}
.footer-bottom .to-top:hover{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50);transform:translateY(-2px)}

/* ===================== 响应式 ===================== */
@media (max-width:1439px){
  .container{max-width:1140px}
  .nav-group{gap:18px}
  .nav-link{font-size:13.5px}
}
@media (max-width:1199px){
  .container{max-width:960px}
  .hero-dark h1{font-size:46px}
  .h2{font-size:32px}
  .split{gap:40px}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:1 / -1}
  .footer-col:last-child ul{grid-template-columns:repeat(2,1fr);gap:10px 24px}
}
@media (max-width:991px){
  .container{max-width:100%;padding:0 24px}
  .nav-shell{grid-template-columns:44px 1fr 44px;min-height:64px;gap:12px}
  .nav-group{display:none}
  .nav-toggle{display:inline-flex}
  .nav-ico{display:inline-flex}
  .brand{justify-self:center}
  .brand-name{font-size:16px}
  .brand-sub{display:none}
  .hero-dark{padding:56px 0 52px}
  .hero-dark h1{font-size:40px}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
  .hero-stats .num{font-size:32px}
  .section{padding:72px 0}
  .grid-2x2{grid-template-columns:1fr}
  .cap-card{padding:26px}
  .status-panel{padding:32px}
  .status-row{grid-template-columns:1fr auto;gap:8px 12px;padding:16px 0}
  .status-row .s-desc{grid-column:1 / -1;order:3}
  .split{grid-template-columns:1fr;gap:28px}
  .split-figure{order:-1;aspect-ratio:16/10}
  .cta-band{padding:48px 28px}
  .cta-band h2{font-size:28px}
  .h2{font-size:28px}
  .faq-q{font-size:16px;padding:16px 20px;min-height:58px}
  .faq-a p{padding:0 20px 20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-col:last-child{grid-column:auto}
  .footer-col:last-child ul{grid-template-columns:1fr}
  .float-dock{right:20px;bottom:20px}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:82px}
  .topbar .container{min-height:34px;justify-content:center;text-align:center}
  .topbar .tb-left{font-size:12px}
  .topbar a{display:none}
  .hero-dark h1{font-size:34px;line-height:1.2}
  .hero-lede{font-size:16px}
  .hero-actions{flex-direction:column;gap:12px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px 16px}
  .hero-stats .num{font-size:28px}
  .hero-stats .cap{font-size:13px}
  .section{padding:56px 0}
  .h2{font-size:26px}
  .lede{font-size:15.5px}
  .grid-2x2{gap:16px}
  .cap-card{padding:22px}
  .cap-card h3{font-size:19px}
  .status-panel{padding:26px 22px;border-radius:12px}
  .status-panel h3{font-size:20px}
  .status-row{grid-template-columns:1fr auto}
  .timeline{padding-left:30px}
  .tl-item::before{left:-30px}
  .tl-item h3{font-size:18px}
  .tl-item p{font-size:15px}
  .cta-band{border-radius:12px;padding:40px 22px}
  .cta-band h2{font-size:24px}
  .cta-actions .btn{width:100%}
  .btn{font-size:15px;padding:13px 22px}
  .float-dock{
    left:16px;right:16px;bottom:calc(14px + env(safe-area-inset-bottom));
    flex-direction:row-reverse;align-items:center;justify-content:space-between;gap:10px;
  }
  .btn-float{flex:1;height:50px;justify-content:center;border-radius:8px;font-size:15px;opacity:1;pointer-events:auto;transform:none}
  .to-top-float{width:50px;height:50px;border-radius:8px;opacity:1;pointer-events:auto}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-brand p{max-width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-bottom .to-top{align-self:flex-end}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .brand-name{font-size:15px}
  .hero-dark h1{font-size:29px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .cap-card{padding:18px}
  .cta-band h2{font-size:22px}
  .crumbs{font-size:12px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --ink-900:#16211C;
  --ink-700:#2C3A33;
  --ink-500:#4A5A51;
  --paper-50:#FBF8F2;
  --paper-100:#F3EDE2;
  --paper-200:#E7DFD1;
  --clay-600:#C0553C;
  --clay-500:#D4694F;
  --clay-700:#9E4430;
  --olive-500:#6E7F6A;
  --text-900:#191A17;
  --text-600:#5B5C54;
  --text-400:#8C8D84;
  --radius-sm:4px;
  --radius-btn:6px;
  --radius-card:10px;
  --radius-lg:14px;
  --shadow-flat:0 1px 0 rgba(22,33,28,.06);
  --shadow-lift:0 18px 40px -24px rgba(22,33,28,.35);
  --font-serif:'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --ease-color:180ms ease-out;
  --ease-move:260ms cubic-bezier(.2,.7,.3,1);
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--text-900);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
body.no-scroll{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease-color);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--font-serif);
  color:var(--ink-900);
  font-weight:600;
  letter-spacing:-0.01em;
  text-wrap:balance;
  line-height:1.3;
}
h1{font-size:clamp(34px,4.2vw,52px);line-height:1.16;font-weight:700;}
h2{font-size:clamp(26px,2.8vw,36px);line-height:1.25;}
h3{font-size:clamp(20px,2vw,24px);line-height:1.35;}
h4{font-size:19px;line-height:1.45;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:3px;}
::selection{background:rgba(192,85,60,.18);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink-900);color:var(--paper-50);
  padding:12px 20px;border-radius:var(--radius-btn);
}
.skip-link:focus{left:16px;top:12px;}

/* ---------- top bar ---------- */
.topbar{background:var(--ink-900);color:var(--paper-100);font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:center;gap:14px;min-height:36px;flex-wrap:wrap;text-align:center;}
.topbar a{color:#EFC7BC;text-decoration:underline;text-underline-offset:3px;}
.topbar a:hover{color:#FFFFFF;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,248,242,.96);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease-color),box-shadow var(--ease-color);
}
.site-header.is-scrolled{border-bottom-color:var(--paper-200);box-shadow:0 6px 18px -16px rgba(22,33,28,.5);}
.header-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  height:84px;
  transition:height var(--ease-move);
}
.site-header.is-scrolled .header-grid{height:64px;}
.nav-left ul{display:flex;align-items:center;justify-content:flex-end;gap:22px;}
.nav-right{display:flex;align-items:center;justify-content:flex-start;gap:22px;}
.nav-right ul{display:flex;align-items:center;gap:22px;}
.nav-left a,.nav-right a.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink-700);
  white-space:nowrap;
}
.nav-left a::after,.nav-right a.nav-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  height:2px;width:0;
  background:var(--clay-600);
  transition:width var(--ease-move);
}
.nav-left a:hover,.nav-right a.nav-link:hover{color:var(--ink-900);}
.nav-left a:hover::after,.nav-right a.nav-link:hover::after{width:100%;}
.nav-left a.is-active,.nav-right a.nav-link.is-active{color:var(--ink-900);font-weight:700;}
.nav-left a.is-active::after,.nav-right a.nav-link.is-active::after{width:100%;}

.brand{display:flex;align-items:center;gap:11px;justify-self:center;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  color:var(--ink-900);
}
.brand-mark svg{width:100%;height:100%;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{
  font-family:var(--font-serif);
  font-size:19px;font-weight:700;
  color:var(--ink-900);
  white-space:nowrap;
}
.brand-sub{
  font-size:11px;letter-spacing:.1em;
  color:var(--text-400);
  white-space:nowrap;
}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--radius-btn);
  align-items:center;justify-content:center;
  color:var(--ink-900);
}
.menu-toggle span{display:block;width:19px;height:2px;background:currentColor;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:19px;height:2px;background:currentColor;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.mobile-login{display:none;width:44px;height:44px;align-items:center;justify-content:center;color:var(--ink-900);justify-self:end;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;
  font-size:16px;font-weight:600;letter-spacing:.01em;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  transition:background var(--ease-color),color var(--ease-color),border-color var(--ease-color),transform var(--ease-color),box-shadow var(--ease-color);
  line-height:1.2;
  text-align:center;
}
.btn i{font-size:15px;transition:transform var(--ease-color);}
.btn:hover i{transform:translateX(4px);}
.btn-primary{background:var(--clay-600);color:var(--paper-50);}
.btn-primary:hover{background:var(--clay-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lift);}
.btn-primary:active{background:var(--clay-700);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink-900);border:1.5px solid var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper-50);transform:translateY(-1px);}
.btn-light{background:var(--paper-50);color:var(--ink-900);}
.btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lift);}
.btn-outline-light{background:transparent;color:var(--paper-50);border:1.5px solid rgba(251,248,242,.55);}
.btn-outline-light:hover{background:rgba(251,248,242,.12);border-color:var(--paper-50);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- hero ---------- */
.page-hero{
  padding:40px 0 72px;
  background:linear-gradient(180deg,var(--paper-50) 0%,var(--paper-100) 100%);
  border-bottom:1px solid var(--paper-200);
}
.breadcrumb{font-size:13px;color:var(--text-400);margin-bottom:32px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li::after{content:"/";color:var(--paper-200);}
.breadcrumb li:last-child::after{content:"";}
.breadcrumb a:hover{color:var(--clay-600);}
.breadcrumb .is-current{color:var(--ink-900);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:56px;align-items:start;}
.eyebrow{
  display:inline-block;
  font-size:11px;letter-spacing:.12em;
  color:var(--olive-500);
  text-transform:uppercase;
  font-weight:700;
  margin-bottom:16px;
}
.hero-lead{font-size:17px;color:var(--text-600);max-width:56ch;margin-top:20px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:0;margin-top:44px;
  border-top:1px solid var(--paper-200);
  padding-top:24px;
}
.hero-stat{padding:0 20px;border-left:1px solid var(--paper-200);}
.hero-stat:first-child{padding-left:0;border-left:0;}
.hero-stat strong{
  display:block;font-family:var(--font-sans);
  font-size:28px;font-weight:700;color:var(--ink-900);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero-stat span{font-size:13px;color:var(--text-400);}
.hero-figure{margin:0;}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-lg);
  border:1px solid var(--paper-200);
  box-shadow:var(--shadow-flat);
  background:var(--paper-100);
}
.hero-figure figcaption{font-size:13px;color:var(--text-400);margin-top:12px;line-height:1.6;}

/* ---------- sections ---------- */
.section{padding:var(--space-section) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head p{color:var(--text-600);font-size:16px;margin-top:14px;}
.section-divider{border-top:1px solid var(--paper-200);}

/* ---------- filter chips ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding-bottom:24px;
  border-bottom:1px solid var(--paper-200);
}
.chip{
  height:34px;padding:0 16px;
  display:inline-flex;align-items:center;
  border-radius:999px;
  border:1px solid var(--paper-200);
  background:var(--paper-50);
  font-size:14px;color:var(--text-600);
  transition:background var(--ease-color),color var(--ease-color),border-color var(--ease-color);
  font-variant-numeric:tabular-nums;
}
.chip:hover{border-color:rgba(22,33,28,.28);color:var(--ink-900);}
.chip.is-active{background:var(--ink-900);border-color:var(--ink-900);color:var(--paper-50);}

/* ---------- changelog ---------- */
.log-group{margin-top:48px;}
.log-month{
  font-family:var(--font-sans);
  font-size:13px;font-weight:700;
  letter-spacing:.1em;
  color:var(--olive-500);
  margin-bottom:8px;
}
.log-list{border-top:1px solid var(--paper-200);}
.log-item{
  display:grid;
  grid-template-columns:130px minmax(0,1fr);
  gap:32px;
  padding:28px 0;
  border-bottom:1px solid var(--paper-200);
  transition:background var(--ease-color);
}
.log-item:hover{background:rgba(243,237,226,.45);}
.log-date{
  font-size:14px;color:var(--text-400);
  font-variant-numeric:tabular-nums;
  padding-top:2px;
  white-space:nowrap;
}
.log-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px;}
.log-head h4{font-size:20px;line-height:1.4;color:var(--ink-900);}
.ver-badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 10px;
  border-radius:var(--radius-btn);
  background:rgba(192,85,60,.1);
  border:1px solid rgba(192,85,60,.28);
  color:var(--clay-700);
  font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.log-content p{font-size:16px;color:var(--text-600);margin-bottom:12px;}
.log-points{margin-top:12px;display:grid;gap:8px;}
.log-points li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  color:var(--text-600);
  line-height:1.75;
}
.log-points li::before{
  content:"";
  position:absolute;left:0;top:10px;
  width:6px;height:6px;
  background:var(--clay-600);
  border-radius:1px;
}

/* ---------- steps ---------- */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--paper-200);
}
.step{
  padding:32px 32px 8px 0;
  border-right:1px solid var(--paper-200);
}
.step:last-child{border-right:0;padding-right:0;}
.step:not(:first-child){padding-left:32px;}
.step-num{
  font-family:var(--font-serif);
  font-size:28px;font-weight:700;
  color:var(--clay-600);
  font-variant-numeric:tabular-nums;
  display:block;margin-bottom:14px;
}
.step h3{font-size:20px;margin-bottom:10px;}
.step p{font-size:15px;color:var(--text-600);}

/* ---------- note block ---------- */
.note-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:56px;align-items:center;}
.note-card{
  background:var(--paper-100);
  border:1px solid var(--paper-200);
  border-left:3px solid var(--clay-600);
  border-radius:var(--radius-card);
  padding:26px 28px;
}
.note-card h4{font-size:17px;margin-bottom:8px;}
.note-card p{font-size:15px;color:var(--text-600);}
.check-list{margin-top:26px;display:grid;gap:12px;}
.check-list li{position:relative;padding-left:26px;font-size:16px;color:var(--text-600);}
.check-list li::before{
  content:"";
  position:absolute;left:2px;top:9px;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--olive-500);
}
.note-figure{margin:0;}
.note-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);
  border:1px solid var(--paper-200);
  background:var(--paper-100);
}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;}
.faq-list{border:1px solid var(--paper-200);border-radius:var(--radius-card);background:#fff;overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--paper-200);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;
  min-height:64px;
  text-align:left;
  font-size:17px;font-weight:600;
  color:var(--ink-900);
  background:transparent;
  font-family:var(--font-sans);
  line-height:1.5;
  transition:background var(--ease-color);
}
.faq-q:hover{background:rgba(243,237,226,.6);}
.faq-icon{
  position:relative;flex:0 0 20px;width:20px;height:20px;
  transition:transform var(--ease-move);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--clay-600);border-radius:1px;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--ease-move);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{
  padding:0 24px 22px;
  font-size:16px;
  color:var(--text-600);
  background:#fff;
  margin:0;
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  color:var(--paper-50);
  padding:80px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.16;
}
.cta-band .container{position:relative;z-index:1;}
.cta-inner{max-width:760px;}
.cta-band h2{color:var(--paper-50);margin-bottom:16px;}
.cta-band p{color:rgba(251,248,242,.78);font-size:16px;max-width:62ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.cta-lines{
  position:absolute;right:-40px;top:-40px;width:320px;height:320px;
  border:1px solid rgba(251,248,242,.14);
  border-radius:50%;pointer-events:none;
}
.cta-lines::after{
  content:"";position:absolute;inset:48px;
  border:1px solid rgba(251,248,242,.1);
  border-radius:50%;
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:var(--paper-100);padding:64px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(251,248,242,.12);
}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:13px;font-weight:600;
  letter-spacing:.08em;
  color:var(--olive-500);
  margin-bottom:16px;
}
.footer-col ul li{font-size:15px;line-height:2.2;color:rgba(251,248,242,.82);}
.footer-col ul li a{color:rgba(251,248,242,.82);border-bottom:1px solid transparent;transition:color var(--ease-color),border-color var(--ease-color);}
.footer-col ul li a:hover{color:#fff;border-bottom-color:rgba(251,248,242,.6);}
.footer-brand .brand-name{
  display:block;
  font-family:var(--font-serif);
  font-size:20px;font-weight:700;
  color:var(--paper-50);
  margin-bottom:14px;
}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(251,248,242,.7);max-width:360px;}
.footer-rows{padding-top:0;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;
  font-size:13px;
  color:rgba(251,248,242,.55);
}
.to-top{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(251,248,242,.3);
  color:var(--paper-50);
  transition:background var(--ease-color),color var(--ease-color),border-color var(--ease-color);
}
.to-top:hover{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50);}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:70;
  display:flex;flex-direction:column;gap:12px;align-items:flex-end;
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity var(--ease-move),transform var(--ease-move);
}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-cta .btn{border-radius:999px;box-shadow:var(--shadow-lift);}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:120;display:none;}
.drawer.is-open{display:block;}
.drawer-backdrop{position:absolute;inset:0;background:rgba(22,33,28,.55);}
.drawer-panel{
  position:absolute;left:0;right:0;top:0;
  background:var(--paper-50);
  padding:20px 24px 32px;
  max-height:100%;
  overflow:auto;
  box-shadow:0 24px 48px -24px rgba(22,33,28,.5);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{
  width:44px;height:44px;display:grid;place-items:center;
  font-size:20px;color:var(--ink-900);border-radius:var(--radius-btn);
}
.drawer-list li{border-bottom:1px solid var(--paper-200);}
.drawer-list a{
  display:flex;align-items:center;
  min-height:48px;
  font-size:16px;font-weight:500;color:var(--ink-700);
}
.drawer-list a.is-active{color:var(--clay-600);font-weight:700;}
.drawer-cta{margin-top:24px;}
.drawer-cta .btn{width:100%;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--space-section:80px;}
  .hero-grid{gap:40px;}
  .nav-left ul,.nav-right ul{gap:16px;}
  .nav-left a,.nav-right a.nav-link{font-size:14px;}
}
@media (max-width:991px){
  :root{--space-section:72px;}
  .header-grid{grid-template-columns:48px 1fr 48px;height:64px;gap:8px;}
  .nav-left,.nav-right{display:none;}
  .menu-toggle{display:flex;}
  .mobile-login{display:flex;}
  .brand{justify-self:center;}
  .brand-name{font-size:17px;}
  .brand-sub{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-stats{margin-top:36px;}
  .note-grid{grid-template-columns:1fr;gap:32px;}
  .steps-grid{grid-template-columns:1fr;}
  .step{border-right:0;border-bottom:1px solid var(--paper-200);padding:26px 0;}
  .step:not(:first-child){padding-left:0;}
  .step:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
  .topbar-inner{font-size:12px;gap:8px;}
}
@media (max-width:767px){
  :root{--space-section:56px;}
  .container{padding:0 20px;}
  body{font-size:16px;padding-bottom:72px;}
  h1{font-size:34px;}
  .page-hero{padding:28px 0 48px;}
  .breadcrumb{margin-bottom:24px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-stats{grid-template-columns:1fr;gap:16px;padding-top:20px;}
  .hero-stat{border-left:0;padding:0;border-top:1px solid var(--paper-200);padding-top:14px;}
  .hero-stat:first-child{border-top:0;padding-top:0;}
  .log-item{grid-template-columns:1fr;gap:12px;padding:24px 0;}
  .log-date{padding-top:0;font-size:13px;}
  .log-head h4{font-size:18px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a p{padding:0 18px 20px;}
  .cta-band{padding:56px 0;}
  .cta-actions .btn{flex:1 1 100%;}
  .cta-lines{display:none;}
  .float-cta{
    right:0;left:0;bottom:0;
    padding:8px 16px calc(8px + env(safe-area-inset-bottom));
    background:var(--paper-50);
    border-top:1px solid var(--paper-200);
    flex-direction:row;
    align-items:center;
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0);}
  .float-cta .btn{width:100%;border-radius:var(--radius-btn);padding:12px 16px;font-size:15px;box-shadow:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;font-size:12px;}
  .footer-col ul li{font-size:14px;}
  .section-tight{padding:48px 0;}
}
@media (max-width:480px){
  .brand-name{font-size:16px;}
  .chip{height:32px;padding:0 13px;font-size:13px;}
  .log-points li{font-size:14px;}
  .note-card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category5 */
:root{
  --ink-900:#16211C;
  --ink-700:#2C3A33;
  --ink-500:#4A5A51;
  --paper-50:#FBF8F2;
  --paper-100:#F3EDE2;
  --paper-200:#E7DFD1;
  --clay-600:#C0553C;
  --clay-500:#D4694F;
  --clay-700:#9E4430;
  --olive-500:#6E7F6A;
  --text-900:#191A17;
  --text-600:#5B5C54;
  --text-400:#8C8D84;
  --radius-s:4px;
  --radius-m:10px;
  --radius-l:14px;
  --radius-btn:6px;
  --shadow-1:0 1px 0 rgba(22,33,28,.06);
  --shadow-2:0 18px 40px -24px rgba(22,33,28,.35);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:180ms ease-out;
  --ease-move:260ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--text-900);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
h1,h2,h3,h4{
  margin:0;
  font-family:var(--serif);
  font-weight:700;
  color:var(--ink-900);
  line-height:1.25;
  text-wrap:balance;
  letter-spacing:-.01em;
}
h1{font-size:56px;line-height:1.15}
h2{font-size:36px}
h3{font-size:24px;line-height:1.35}
h4{font-size:19px;line-height:1.45}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
img{max-width:100%;display:block;object-fit:cover;border-radius:var(--radius-l)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--clay-600);outline-offset:2px;border-radius:var(--radius-s)}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--ink-900);color:var(--paper-50);
  padding:12px 20px;border-radius:0 0 var(--radius-btn) 0;font-size:14px;
}
.skip-link:focus{left:0}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-block;
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--olive-500);
  font-weight:600;
  margin-bottom:16px;
}
.section-head{max-width:760px;margin-bottom:48px}
.section-head p{color:var(--text-600);font-size:16px;line-height:1.75;margin-top:16px;max-width:640px}
.rule{height:1px;background:var(--paper-200);border:0;margin:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(251,248,242,.96);
  border-bottom:1px solid var(--paper-200);
}
.topbar{background:var(--ink-900);color:var(--paper-100);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar-inner span{opacity:.85}
.topbar a{color:var(--paper-50);text-decoration:underline;text-underline-offset:3px;transition:color var(--ease)}
.topbar a:hover{color:#fff}
.nav-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:84px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:20px}
.nav-left{justify-content:flex-end}
.nav-right{justify-content:flex-start}
.nav-left a,.nav-right a{
  position:relative;
  font-size:14px;
  color:var(--ink-700);
  padding:6px 0;
  white-space:nowrap;
  transition:color var(--ease);
  font-weight:500;
}
.nav-left a::after,.nav-right a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  height:2px;width:0;background:var(--clay-600);
  transition:width var(--ease-move);
}
.nav-left a:hover,.nav-right a:hover{color:var(--ink-900)}
.nav-left a:hover::after,.nav-right a:hover::after{width:100%}
.nav-right a.current{color:var(--ink-900);font-weight:700}
.nav-right a.current::after{width:100%}
.logo{display:flex;align-items:center;gap:10px;justify-self:center}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;
  border:1.5px solid var(--ink-900);
  border-radius:50% 50% 4px 4px;
  display:flex;align-items:center;justify-content:center;
  color:var(--clay-600);font-family:var(--serif);font-size:18px;font-weight:700;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-name{font-family:var(--serif);font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.logo-sub{font-size:11px;color:var(--text-400);letter-spacing:.04em;margin-top:2px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;
  font-size:16px;font-weight:600;letter-spacing:.01em;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease-move),box-shadow var(--ease-move);
  font-family:var(--sans);
}
.btn i{font-size:16px;transition:transform var(--ease-move)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--clay-600);color:var(--paper-50);border-color:var(--clay-600)}
.btn-primary:hover{background:var(--clay-500);border-color:var(--clay-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{background:var(--clay-700);border-color:var(--clay-700);transform:none}
.btn-outline{background:transparent;border:1.5px solid var(--ink-900);color:var(--ink-900)}
.btn-outline:hover{background:var(--ink-900);color:var(--paper-50);transform:translateY(-1px)}
.btn-light{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50)}
.btn-light:hover{background:#fff;color:var(--ink-900);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-cta{margin-left:4px}
.nav-toggle{
  display:none;width:44px;height:44px;
  border:1px solid var(--paper-200);border-radius:var(--radius-btn);
  background:transparent;color:var(--ink-900);
  align-items:center;justify-content:center;font-size:18px;cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:var(--paper-100);border-color:var(--ink-900)}
.nav-login-m{
  display:none;
}
.drawer{
  position:fixed;inset:0;z-index:120;
  background:var(--paper-50);
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:opacity 240ms ease,transform 240ms cubic-bezier(.2,.7,.3,1);
  overflow-y:auto;
  padding:20px 24px 40px;
}
.drawer.open{opacity:1;transform:none;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--paper-200);background:transparent;color:var(--ink-900);
  font-size:18px;cursor:pointer;
}
.drawer nav a{
  display:flex;align-items:center;min-height:44px;
  font-size:16px;color:var(--ink-900);font-weight:500;
  border-bottom:1px solid var(--paper-200);
}
.drawer nav a.current{color:var(--clay-600);font-weight:700}
.drawer .btn{width:100%;margin-top:24px}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:24px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-400)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-400)}
.breadcrumb a{color:var(--text-400);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--clay-600)}
.breadcrumb [aria-current]{color:var(--ink-900);font-weight:500}

/* ---------- hero ---------- */
.page-hero{
  padding:40px 0 72px;
  background:linear-gradient(180deg,var(--paper-50) 0%,var(--paper-100) 100%);
  border-bottom:1px solid var(--paper-200);
}
.page-hero h1{max-width:900px;margin-bottom:20px}
.lede{
  max-width:760px;
  font-size:18px;line-height:1.8;color:var(--text-600);
  border-left:3px solid var(--clay-600);
  padding-left:16px;
}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;margin-top:48px;
  border-top:1px solid var(--paper-200);
}
.hero-stats li{padding:24px 24px 0 0;border-right:1px solid var(--paper-200)}
.hero-stats li:last-child{border-right:0}
.hero-stats .num{font-size:40px;font-weight:700;font-family:var(--sans);color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1.1}
.hero-stats .unit{font-size:16px;font-weight:500;color:var(--ink-500);margin-left:4px}
.hero-stats p{font-size:14px;color:var(--text-600);line-height:1.6;margin-top:8px}

/* ---------- 大图卡 ---------- */
.pair-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.story-card-lg{
  position:relative;overflow:hidden;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-l);
  background:var(--paper-100);
  box-shadow:var(--shadow-1);
  transition:border-color var(--ease),box-shadow var(--ease-move),transform var(--ease-move);
}
.story-card-lg img{
  width:100%;aspect-ratio:4/3;border-radius:0;
  transition:transform var(--ease-move);
}
.story-card-lg:hover{border-color:rgba(22,33,28,.28);box-shadow:var(--shadow-2);transform:translateY(-3px)}
.story-card-lg:hover img{transform:scale(1.03)}
.story-caption{
  position:absolute;left:16px;right:16px;bottom:16px;
  background:rgba(251,248,242,.95);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-m);
  padding:16px 18px;
}
.story-caption .tagline{
  display:inline-block;font-size:13px;font-weight:600;
  color:var(--ink-900);background:rgba(110,127,106,.16);
  border-radius:var(--radius-btn);padding:3px 10px;margin-bottom:10px;
}
.story-caption h3{font-size:20px;margin-bottom:8px}
.story-caption p{font-size:14px;line-height:1.7;color:var(--text-600);margin:0}
.story-caption .meta{
  margin-top:12px;padding-top:10px;border-top:1px solid var(--paper-200);
  display:flex;flex-wrap:wrap;gap:14px;
  font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums;
}
.story-caption .meta span i{color:var(--olive-500);margin-right:5px}

/* ---------- 小卡网格 ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{
  background:#fff;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-m);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color var(--ease),box-shadow var(--ease-move),transform var(--ease-move);
  display:flex;flex-direction:column;
}
.mini-card:hover{border-color:rgba(22,33,28,.28);box-shadow:var(--shadow-2);transform:translateY(-3px)}
.mini-card figure{margin:0;overflow:hidden}
.mini-card img{width:100%;aspect-ratio:16/10;border-radius:0;transition:transform var(--ease-move)}
.mini-card:hover img{transform:scale(1.03)}
.mini-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.mini-body h3{font-size:18px;line-height:1.4;position:relative;display:inline-block}
.mini-body h3::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;
  background:var(--clay-600);transition:width var(--ease-move);
}
.mini-card:hover .mini-body h3::after{width:100%}
.mini-body p{font-size:14px;line-height:1.75;color:var(--text-600);margin:0}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}
.badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 10px;
  font-size:13px;border-radius:var(--radius-btn);
  background:rgba(110,127,106,.14);color:var(--ink-700);
}
.badge-clay{background:rgba(192,85,60,.12);color:var(--clay-700)}
.badge-ink{background:var(--ink-900);color:var(--paper-50)}

/* ---------- 流程 ---------- */
.flow-band{background:var(--paper-100);border-top:1px solid var(--paper-200);border-bottom:1px solid var(--paper-200)}
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:8px}
.flow-step{position:relative;padding-top:32px}
.flow-step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--paper-200);
}
.flow-step::after{
  content:"";position:absolute;top:-4px;left:0;width:9px;height:9px;
  background:var(--clay-600);border-radius:2px;
}
.flow-num{
  font-family:var(--serif);font-size:28px;color:var(--clay-600);
  font-weight:700;line-height:1;margin-bottom:14px;display:block;
}
.flow-step h3{font-size:20px;margin-bottom:10px}
.flow-step p{font-size:15px;line-height:1.8;color:var(--text-600);margin:0}

/* ---------- 引用 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{
  background:var(--paper-100);
  border:1px solid var(--paper-200);
  border-radius:var(--radius-m);
  padding:28px 24px;
  display:flex;flex-direction:column;gap:16px;
  transition:border-color var(--ease),transform var(--ease-move),box-shadow var(--ease-move);
}
.quote-card:hover{border-color:rgba(192,85,60,.45);transform:translateY(-3px);box-shadow:var(--shadow-2)}
.quote-mark{font-family:var(--serif);font-size:34px;line-height:1;color:var(--clay-600)}
.quote-card blockquote{margin:0;font-size:16px;line-height:1.85;color:var(--text-900)}
.quote-who{
  border-top:1px solid var(--paper-200);padding-top:14px;
  font-size:14px;color:var(--text-600);
}
.quote-who strong{display:block;color:var(--ink-900);font-weight:600;font-size:15px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{
  background:#fff;
  border:1px solid var(--paper-200);
  border-radius:var(--radius-m);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease-move);
}
.faq-item:hover{border-color:rgba(22,33,28,.28)}
.faq-item.open{border-color:rgba(192,85,60,.45);box-shadow:var(--shadow-1)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;min-height:64px;padding:16px 22px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;
}
.faq-q .ic{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  transition:transform var(--ease-move);
}
.faq-q .ic::before,.faq-q .ic::after{
  content:"";position:absolute;background:var(--clay-600);border-radius:1px;
}
.faq-q .ic::before{left:0;top:9px;width:20px;height:2px}
.faq-q .ic::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .ic{transform:rotate(45deg)}
.faq-a{display:none;padding:4px 22px 22px;background:var(--paper-100);font-size:16px;line-height:1.85;color:var(--text-600)}
.faq-a p{margin:0}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-900);
  color:var(--paper-50);
  padding:80px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(251,248,242,.05) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{color:var(--paper-50);max-width:620px;font-size:32px}
.cta-band p{color:var(--paper-100);opacity:.82;margin-top:14px;font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-light{background:var(--paper-50);color:var(--ink-900)}
.cta-band .btn-outline{border-color:rgba(251,248,242,.6);color:var(--paper-50)}
.cta-band .btn-outline:hover{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:var(--paper-100);padding:64px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-name{
  display:block;font-family:var(--serif);font-size:22px;font-weight:700;
  color:var(--paper-50);margin-bottom:14px;
}
.footer-brand p{font-size:15px;line-height:1.9;color:rgba(251,248,242,.72);margin:0;max-width:360px}
.footer-col h4{
  font-family:var(--sans);font-size:14px;font-weight:600;
  letter-spacing:.08em;color:var(--olive-500);margin-bottom:16px;
}
.footer-col ul li{font-size:15px;line-height:2.2;color:rgba(251,248,242,.78)}
.site-footer a{color:rgba(251,248,242,.82);font-size:15px;line-height:2.2;transition:color var(--ease)}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  border-top:1px solid rgba(251,248,242,.16);
  margin-top:48px;padding-top:22px;
  font-size:13px;color:var(--text-400);
}
.footer-bottom span{line-height:1.7}
.to-top{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(251,248,242,.32);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--paper-50);transition:background var(--ease),border-color var(--ease),transform var(--ease-move);
}
.to-top:hover{background:var(--paper-50);color:var(--ink-900);border-color:var(--paper-50);transform:translateY(-2px)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:70;
  display:flex;flex-direction:column;gap:10px;align-items:flex-end;
}
.float-cta .btn{border-radius:999px;box-shadow:var(--shadow-2)}
.float-cta .btn-ghost{
  background:rgba(251,248,242,.96);border:1px solid var(--paper-200);color:var(--ink-900);
  padding:11px 18px;font-size:14px;
}
.float-cta .btn-ghost:hover{background:var(--ink-900);color:var(--paper-50);border-color:var(--ink-900)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:1140px}
  h1{font-size:46px}
  h2{font-size:32px}
  .nav-left,.nav-right{gap:14px}
  .nav-left a,.nav-right a{font-size:13px}
  .logo-name{font-size:18px}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  h1{font-size:38px}
  h2{font-size:28px}
  h3{font-size:21px}
  .nav-inner{grid-template-columns:44px 1fr auto;min-height:68px;gap:12px}
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:inline-flex}
  .nav-login-m{display:inline-flex}
  .logo{justify-self:center}
  .logo-mark{width:32px;height:32px;flex:0 0 32px;font-size:16px}
  .logo-name{font-size:16px}
  .logo-sub{display:none}
  .topbar-inner{justify-content:center}
  .topbar-inner a{display:none}
  .page-hero{padding:24px 0 56px}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:36px}
  .hero-stats li{padding:20px 20px 0 0}
  .hero-stats li:nth-child(2){border-right:0}
  .hero-stats li:nth-child(3),.hero-stats li:nth-child(4){border-top:1px solid var(--paper-200);margin-top:0;padding-top:24px}
  .pair-grid{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;gap:28px}
  .quote-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:26px}
  .float-cta{right:16px;bottom:16px}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:76px}
  h1{font-size:32px}
  h2{font-size:25px}
  .section{padding:56px 0}
  .mini-grid{grid-template-columns:1fr}
  .lede{font-size:16px;padding-left:14px}
  .hero-stats .num{font-size:32px}
  .story-caption{left:12px;right:12px;bottom:12px;padding:14px}
  .story-caption h3{font-size:18px}
  .story-caption p{font-size:13px}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .float-cta{
    left:0;right:0;bottom:0;flex-direction:row;align-items:stretch;gap:0;
    background:rgba(251,248,242,.98);
    border-top:1px solid var(--paper-200);
    padding:8px 12px calc(8px + env(safe-area-inset-bottom));
  }
  .float-cta .btn{border-radius:var(--radius-btn);box-shadow:none;flex:1;padding:12px 16px;font-size:15px}
  .float-cta .btn-ghost{display:none}
  .to-top{display:none}
  .footer-bottom .to-top{display:none}
}
@media (max-width:480px){
  .container{padding:0 16px}
  h1{font-size:28px}
  .logo-name{font-size:15px}
  .mini-body{padding:16px}
  .faq-q{font-size:16px;padding:14px 16px}
  .faq-a{padding:4px 16px 18px}
  .hero-stats{grid-template-columns:1fr;}
  .hero-stats li{border-right:0;padding-right:0}
  .hero-stats li+li{border-top:1px solid var(--paper-200);padding-top:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}