/* roulang page: index */
:root{
  --primary:#a97142;
  --primary-dark:#8a5a33;
  --accent:#d9a441;
  --bg:#f5efe6;
  --bg-deep:#221e1a;
  --bg-dark:#2f2923;
  --text:#3d342c;
  --muted:#8c7d6d;
  --heading:#2b241c;
  --border:#dccdb8;
  --card:#fffcf5;
  --white:#fff;
  --radius:16px;
  --shadow:0 10px 34px rgba(55,42,25,.1);
  --shadow-lg:0 20px 54px rgba(55,42,25,.18);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button,input,textarea{font:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{max-width:680px;margin-bottom:44px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;font-weight:700;color:var(--primary-dark);background:rgba(169,113,66,.1);border:2px solid var(--border);border-radius:40px;padding:7px 18px;transform:rotate(-1.5deg)}
h1,h2,h3{color:var(--heading);line-height:1.32;font-weight:800}
h1{font-size:44px}
h2{font-size:33px}
.lead{color:var(--muted);font-size:17px;margin-top:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:none;border-radius:44px;padding:14px 28px;font-weight:700;font-size:15px;cursor:pointer;transition:all .25s ease;background:transparent}
.btn-primary{background:var(--accent);color:var(--bg-deep);border:2px solid var(--bg-deep);box-shadow:0 6px 0 var(--bg-deep)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 9px 0 var(--bg-deep)}
.btn-primary:active{transform:translateY(2px);box-shadow:0 2px 0 var(--bg-deep)}
.site-header{background:var(--bg-dark);border-bottom:4px solid var(--accent);position:sticky;top:0;z-index:100;box-shadow:0 8px 26px rgba(20,16,12,.18)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px}
.brand{display:flex;align-items:center;color:var(--white);font-weight:900;font-size:20px;letter-spacing:.02em}
.brand-dot{color:var(--accent);margin:0 5px}
.brand small{display:block;font-size:10px;letter-spacing:.2em;color:rgba(255,255,255,.5);font-weight:400}
.site-nav{display:flex;align-items:center;gap:6px}
.nav-link{display:inline-flex;align-items:center;padding:10px 22px;border-radius:40px;color:rgba(255,255,255,.82);font-weight:600;font-size:15px;transition:all .2s ease}
.nav-link:hover{color:var(--white);background:rgba(255,255,255,.08)}
.nav-link.active{background:var(--accent);color:var(--bg-deep)}
.nav-toggle{display:none;background:none;border:none;width:42px;height:42px;border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;border:2px solid rgba(255,255,255,.3)}
.nav-toggle span{width:20px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.category-hero{position:relative;background:var(--bg-deep);color:var(--white);overflow:hidden}
.category-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(23,19,16,.82),rgba(34,27,22,.55)),url('/assets/images/backpic/back-2.png') center/cover no-repeat}
.hero-inner{position:relative;z-index:2;padding:96px 24px;max-width:820px}
.hero-inner .hero-badge{display:inline-block;background:rgba(217,164,65,.15);border:2px solid rgba(217,164,65,.6);color:var(--accent);border-radius:40px;padding:8px 22px;font-size:14px;font-weight:700;letter-spacing:.1em;margin-bottom:22px}
.hero-inner h1{color:var(--white);margin-bottom:16px}
.hero-inner p{color:rgba(255,255,255,.78);font-size:18px;max-width:600px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guide-card-item{background:var(--card);border:2px solid var(--border);border-radius:var(--radius);padding:32px 26px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.guide-card-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.guide-icon{width:56px;height:56px;border-radius:16px;background:var(--bg-deep);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px;border:2px solid var(--accent)}
.guide-card-item h3{font-size:20px;margin-bottom:10px}
.guide-card-item p{color:var(--muted);font-size:14px;line-height:1.8}
.steps-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-box{position:relative;background:var(--card);border:2px solid var(--border);border-radius:var(--radius);padding:30px 22px}
.step-box .step-number{font-size:14px;font-weight:900;color:var(--primary);letter-spacing:.1em}
.step-box h3{font-size:18px;margin:12px 0 8px}
.step-box p{color:var(--muted);font-size:14px}
.step-box .step-arrow{position:absolute;top:36px;right:-16px;color:var(--accent);font-size:18px;display:none}
@media (min-width:981px){.step-box:not(:last-child) .step-arrow{display:block}}
.tips-section{background:var(--card);border-top:2px solid var(--border);border-bottom:2px solid var(--border)}
.tips-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
.tips-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.tips-media img{width:100%;height:420px;object-fit:cover}
.tips-list{display:flex;flex-direction:column;gap:16px}
.tips-list li{display:flex;gap:14px;background:var(--bg);border:2px solid var(--border);border-radius:14px;padding:18px 20px}
.tips-list i{color:var(--primary);font-size:20px;margin-top:3px}
.tips-list strong{color:var(--heading);display:block;margin-bottom:4px}
.tips-list span{color:var(--muted);font-size:14px}
.entry-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.entry-row{display:flex;align-items:center;gap:16px;background:var(--card);border:2px solid var(--border);border-radius:14px;padding:16px 20px;transition:all .25s}
.entry-row:hover{border-color:var(--primary);box-shadow:var(--shadow);transform:translateX(5px)}
.entry-icon{width:42px;height:42px;border-radius:12px;background:var(--bg-deep);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.entry-row strong{flex:1;color:var(--heading)}
.entry-row small{color:var(--muted);font-size:13px}
.faq-section{background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:var(--card);border:2px solid var(--border);border-radius:16px;overflow:hidden;transition:box-shadow .25s}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-item summary{cursor:pointer;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-weight:700;color:var(--heading);font-size:17px;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:26px;font-weight:300;color:var(--primary);transition:transform .25s}
.faq-item[open] summary:after{transform:rotate(45deg)}
.faq-item .answer{padding:0 26px 22px;color:var(--muted);font-size:15px;line-height:1.8}
.cta-section{position:relative;background:var(--bg-deep);color:var(--white);text-align:center;overflow:hidden}
.cta-section:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(23,19,16,.82),rgba(34,27,22,.56)),url('/assets/images/backpic/back-3.png') center/cover no-repeat}
.cta-inner{position:relative;z-index:2;padding:92px 24px}
.cta-inner h2{color:var(--white);font-size:36px;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.75);max-width:480px;margin:0 auto 30px}
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.68)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding:64px 24px 44px}
.footer-brand .brand{font-size:22px;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:320px}
.footer-col h4{color:var(--white);font-size:16px;margin-bottom:18px}
.footer-col a{display:block;padding:7px 0;font-size:14px;color:rgba(255,255,255,.6);transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--accent);transform:translateX(4px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;font-size:13px;color:rgba(255,255,255,.38);text-align:center}
@media (max-width:1023px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .steps-wrap{grid-template-columns:repeat(2,1fr)}
  .tips-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .site-nav{display:none;position:absolute;top:76px;left:0;right:0;background:var(--bg-dark);flex-direction:column;align-items:stretch;padding:18px 20px 26px;border-top:2px solid var(--accent);box-shadow:var(--shadow-lg)}
  .site-nav.open{display:flex}
  .nav-link{padding:14px 20px;justify-content:center}
  .section{padding:66px 0}
  .hero-inner{padding:72px 20px}
  h1{font-size:33px}
  .cta-inner h2{font-size:28px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .steps-wrap{grid-template-columns:1fr}
  .hero-inner h1{font-size:29px}
  .footer-grid{padding:48px 20px 32px}
}

/* roulang page: article */
:root{
  --primary:#c4552d;
  --primary-dark:#a4411f;
  --primary-soft:#f3d9cb;
  --secondary:#2f4858;
  --accent:#e8b04b;
  --accent-soft:#f8e8c6;
  --bg:#f5efe6;
  --bg-dark:#222b2a;
  --bg-card:#fffaf1;
  --text:#2c2c2c;
  --text-light:#6b6459;
  --text-mute:#99917f;
  --border:#dcd0bc;
  --border-dark:#c0af96;
  --radius:16px;
  --radius-sm:8px;
  --shadow:0 8px 24px rgba(44,42,38,.08);
  --shadow-hover:0 16px 40px rgba(44,42,38,.14);
  --space:24px;
  --header-h:76px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;min-height:100vh}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border-color .25s ease,box-shadow .25s ease,transform .25s ease}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);font-weight:700;line-height:1.35;color:var(--text)}
.container{width:min(1200px,92%);margin-inline:auto}
.container-lg{width:min(1320px,94%);margin-inline:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px;letter-spacing:.5px;border:2px solid transparent;cursor:pointer;transition:all .28s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 6px 16px rgba(196,85,45,.28)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-3px);box-shadow:0 10px 24px rgba(196,85,45,.36)}
.btn-outline{background:transparent;border-color:var(--border-dark);color:var(--secondary)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-3px);background:rgba(255,255,255,.46)}
.btn-accent{background:var(--accent);color:#3a2d14;border-color:var(--accent);box-shadow:0 6px 16px rgba(232,176,75,.32)}
.btn-accent:hover{background:#d99f35;border-color:#d99f35;transform:translateY(-3px)}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.badge{display:inline-block;padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.4px;background:var(--primary-soft);color:var(--primary-dark)}
.badge-accent{background:var(--accent-soft);color:#8f6b1c}
.badge-dark{background:var(--bg-dark);color:#e8dcc8}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-light);font-size:13px;transition:all .2s}
.tag:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--border-dark)}
.section{padding:88px 0}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center}
.section-head .overline{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2.5px;color:var(--primary);text-transform:uppercase;margin-bottom:10px;font-family:var(--font-sans)}
.section-head h2{font-size:clamp(28px,4vw,40px);margin-bottom:14px;position:relative}
.section-head p{color:var(--text-light);font-size:16px;line-height:1.8}

/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(245,239,230,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{font-family:var(--font-serif);font-weight:800;font-size:24px;color:var(--text);letter-spacing:.5px;display:inline-flex;align-items:baseline;gap:2px}
.brand-dot{color:var(--primary);margin-inline:2px}
.brand small{font-size:10px;letter-spacing:1.6px;color:var(--text-mute);margin-left:8px;font-family:var(--font-sans);font-weight:400}
.site-nav{display:flex;align-items:center;gap:6px}
.nav-link{padding:9px 18px;border-radius:999px;font-weight:600;color:var(--text-light);font-size:15px}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.active{background:var(--secondary);color:#f8f0e3;box-shadow:0 4px 12px rgba(47,72,88,.3)}
.nav-link.active:hover{color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:transparent;border:none;padding:10px;cursor:pointer;border-radius:10px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* breadcrumb */
.breadcrumb-row{padding:18px 0;border-bottom:1px solid var(--border);background:transparent}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-light)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--border-dark)}

/* article hero */
.article-hero{position:relative;padding:72px 0 60px;background:linear-gradient(135deg,#222b2a 0%,#2f4858 45%,#3e5a68 100%);color:#f0e9db;overflow:hidden;border-bottom:4px solid var(--accent)}
.article-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.16;mix-blend-mode:soft-light}
.article-hero::after{content:"";position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(to top,var(--bg),transparent)}
.article-hero .container{position:relative;z-index:2}
.hero-kicker{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:18px}
.hero-kicker .badge{background:var(--accent);color:#3a2d14}
.hero-kicker .post-date{font-size:14px;color:rgba(255,255,255,.65)}
.article-hero h1{font-size:clamp(30px,5vw,46px);line-height:1.3;max-width:860px;color:#fdf8ef;margin-bottom:18px;text-shadow:0 2px 20px rgba(0,0,0,.4)}
.hero-desc{font-size:17px;line-height:1.8;max-width:720px;color:rgba(255,255,255,.72);margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;align-items:center;font-size:14px;color:rgba(255,255,255,.6);border-top:1px solid rgba(255,255,255,.16);padding-top:20px}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block}

/* post layout */
.post-section{padding:64px 0 88px}
.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:44px;align-items:start}
.post-main{min-width:0}
.post-card{background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:clamp(22px,4vw,42px);box-shadow:var(--shadow)}
.post-cover{border-radius:16px;margin-bottom:28px;border:1px solid var(--border);box-shadow:var(--shadow)}
.post-content{font-size:16.5px;line-height:1.95;color:#3a352e}
.post-content p{margin-bottom:20px}
.post-content h2,.post-content h3{font-family:var(--font-serif);margin:34px 0 16px;color:var(--secondary);padding-left:16px;border-left:4px solid var(--primary);line-height:1.4}
.post-content img{border-radius:12px;margin:24px 0}
.post-content ul,.post-content ol{margin:0 0 22px;padding-left:26px}
.post-content ul{list-style:disc}
.post-content ol{list-style:decimal}
.post-content li{margin-bottom:10px;padding-left:6px}
.post-content blockquote{border-left:4px solid var(--accent);background:var(--accent-soft);padding:18px 22px;border-radius:0 12px 12px 0;margin:26px 0;color:#5d4c26}
.post-content a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.post-content a:hover{color:var(--primary-dark)}
.post-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.post-content th{background:var(--secondary);color:#fff;padding:12px 16px;text-align:left}
.post-content td{border:1px solid var(--border);padding:12px 16px}
.post-content code{background:#ece4d6;padding:2px 8px;border-radius:6px;font-size:.9em}
.post-content strong{color:var(--primary-dark)}
.post-footer-bar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.post-share{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-light)}
.share-link{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border:1px solid var(--border);border-radius:999px;font-size:13px;color:var(--text-light);background:var(--bg);transition:all .2s}
.share-link:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}

/* sidebar */
.post-sidebar{display:flex;flex-direction:column;gap:28px;position:sticky;top:calc(var(--header-h) + 20px)}
.side-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.side-head{padding:16px 20px;background:var(--secondary);color:#f0e9db;font-family:var(--font-serif);font-size:16px;letter-spacing:1px;border-bottom:3px solid var(--accent)}
.side-body{padding:18px 20px}
.side-list{display:grid;gap:12px}
.side-list a{display:grid;grid-template-columns:96px 1fr;gap:14px;padding:10px;border-radius:12px;border:1px solid transparent;transition:all .25s}
.side-list a:hover{background:var(--bg);border-color:var(--border);transform:translateX(4px)}
.side-list img{width:96px;height:68px;object-fit:cover;border-radius:8px}
.side-list .li-title{font-size:14px;line-height:1.5;color:var(--text);font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-list .li-meta{font-size:12px;color:var(--text-mute);margin-top:4px}
.side-note{padding:16px 20px;background:var(--primary-soft);border-radius:12px;font-size:14px;color:var(--primary-dark);line-height:1.7}
.side-note strong{font-weight:700}

/* empty state */
.post-empty{text-align:center;padding:72px 24px}
.empty-mark{font-family:var(--font-serif);font-size:88px;font-weight:800;color:var(--border);line-height:1}
.post-empty h2{font-size:28px;margin:22px 0 10px;color:var(--secondary)}
.post-empty p{color:var(--text-light);margin-bottom:28px}

/* guide strip */
.guide-strip{background:var(--bg-dark);color:#e8dcc8;border-radius:20px;padding:clamp(28px,5vw,52px);margin-top:64px;position:relative;overflow:hidden}
.guide-strip::before{content:"";position:absolute;top:0;right:0;width:220px;height:220px;background:radial-gradient(circle,rgba(232,176,75,.18),transparent 70%)}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:28px}
.guide-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:26px;transition:transform .3s,background .3s}
.guide-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.09)}
.guide-num{font-family:var(--font-serif);font-size:30px;font-weight:800;color:var(--accent);line-height:1;margin-bottom:14px}
.guide-item h4{color:#fdf8ef;font-size:17px;margin-bottom:10px}
.guide-item p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.7)}

/* faq */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.faq-item:nth-child(odd){background:var(--accent-soft);border-color:#e9d5ab}
.faq-item:nth-child(even){background:var(--bg-card)}
.faq-item h3{font-size:17px;color:var(--secondary);margin-bottom:12px;padding-left:14px;border-left:3px solid var(--accent);line-height:1.5}
.faq-item p{font-size:14.5px;color:var(--text-light);line-height:1.8}

/* cta */
.cta-section{position:relative;padding:88px 0;background:linear-gradient(135deg,#2f4858,#1f3a3a);color:#fff;background-size:cover;background-image:url('/assets/images/backpic/back-3.png');background-blend-mode:overlay}
.cta-inner{text-align:center;max-width:740px;margin:0 auto}
.cta-inner h2{font-size:clamp(28px,4.5vw,42px);margin-bottom:18px;color:#fff}
.cta-inner p{color:rgba(255,255,255,.76);font-size:16.5px;line-height:1.8;margin-bottom:36px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px}

/* footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:44px}
.footer-brand .brand{color:#f0e9db;font-size:26px}
.footer-brand p{color:rgba(255,255,255,.58);line-height:1.8;margin-top:16px;max-width:360px}
.footer-col h4{color:#fff;font-size:15px;letter-spacing:1.5px;margin-bottom:16px}
.footer-col a{display:block;padding:6px 0;color:rgba(255,255,255,.58);transition:all .2s}
.footer-col a:hover{color:var(--accent);transform:translateX(4px)}
.footer-bottom{padding:22px 0;border-top:1px solid rgba(255,255,255,.12);text-align:center;font-size:13px;color:rgba(255,255,255,.4)}

/* responsive */
@media (max-width:1024px){
  .post-layout{grid-template-columns:1fr}
  .post-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .guide-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .brand small{display:none}
  .nav-toggle{display:flex}
  .site-nav{position:fixed;left:0;right:0;top:var(--header-h);background:var(--bg);flex-direction:column;padding:16px 8vw 24px;gap:4px;border-bottom:2px solid var(--border);box-shadow:var(--shadow-hover);display:none;max-height:calc(100vh - var(--header-h));overflow-y:auto}
  .site-nav.open{display:flex}
  .nav-link{padding:12px 18px;text-align:center;width:100%}
  .faq-grid{grid-template-columns:1fr}
  .guide-grid{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;gap:10px;align-items:flex-start}
  .article-hero{padding:52px 0 48px}
  .cta-actions{flex-direction:column}
}
@media (max-width:520px){
  .section{padding:52px 0}
  .post-card{padding:18px}
  .post-cover{border-radius:12px}
  .post-footer-bar{flex-direction:column;align-items:flex-start}
  .share-link{font-size:12px;padding:6px 10px}
  .footer-grid{grid-template-columns:1fr}
  .side-list a{grid-template-columns:76px 1fr}
  .side-list img{width:76px;height:60px}
  .card{padding:20px}
  .brand{font-size:20px}
}

/* roulang page: category1 */
:root {
  --primary: #3f5c50;
  --primary-dark: #2b3b34;
  --primary-light: #5c7a6d;
  --accent: #d9a14a;
  --accent-dark: #b27d33;
  --accent-light: #e6be7c;
  --paper: #f6f2ea;
  --paper-deep: #ebdfcd;
  --ink: #1f2a26;
  --ink-soft: #2b3b34;
  --text: #2d312f;
  --text-weak: #68736d;
  --border: #d5cbb8;
  --line: #cbbfa9;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 6px 20px rgba(31, 42, 38, .08);
  --shadow-lg: 0 10px 32px rgba(31, 42, 38, .12);
  --shadow-hard: 5px 5px 0 rgba(31, 42, 38, .9);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); color: var(--text); background: var(--paper); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--paper-deep); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 44px; }
.section-head.dark .section-title { color: var(--paper); }
.section-head.dark .section-sub { color: rgba(246, 242, 234, .65); }
.section-tag { display: inline-block; font-size: .82rem; letter-spacing: .14em; color: var(--accent-dark); font-weight: 700; margin-bottom: 10px; }
.section-title { font-family: var(--font-serif); font-size: clamp(1.6rem, 3vw, 2.1rem); color: var(--ink); line-height: 1.3; }
.section-sub { color: var(--text-weak); margin-top: 12px; font-size: .98rem; }

.site-header { position: sticky; top: 0; z-index: 100; background: var(--ink); border-bottom: 3px solid var(--accent); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { font-family: var(--font-serif); font-size: 1.3rem; font-weight: 700; color: var(--paper); letter-spacing: .04em; line-height: 1.15; }
.brand .brand-dot { color: var(--accent); }
.brand small { display: block; font-size: .6rem; letter-spacing: .22em; color: rgba(246, 242, 234, .55); font-weight: 400; margin-top: 1px; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.nav-link { color: rgba(246, 242, 234, .72); font-size: .94rem; font-weight: 500; padding: 8px 3px; position: relative; transition: color .2s; }
.nav-link:hover { color: var(--paper); }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--accent); }
.nav-toggle { display: none; background: none; padding: 6px; }

.page-banner { padding: 96px 0; background-image: linear-gradient(180deg, rgba(31, 42, 38, .86), rgba(31, 42, 38, .72)), url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; color: var(--paper); text-align: center; }
.banner-content { max-width: 760px; margin: 0 auto; }
.banner-tag { display: inline-block; padding: 6px 18px; border: 1px solid rgba(246, 242, 234, .4); border-radius: 999px; font-size: .82rem; letter-spacing: .12em; color: var(--accent-light); margin-bottom: 22px; }
.banner-title { font-family: var(--font-serif); font-size: clamp(1.9rem, 4.5vw, 3.1rem); line-height: 1.25; margin-bottom: 16px; text-shadow: 0 2px 12px rgba(0, 0, 0, .25); }
.banner-desc { max-width: 640px; margin: 0 auto 30px; color: rgba(246, 242, 234, .82); font-size: 1rem; line-height: 1.75; }
.banner-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 999px; font-size: .95rem; font-weight: 600; font-family: var(--font-sans); border: 2px solid var(--ink); transition: transform .2s, box-shadow .2s, background .2s, color .2s; }
.btn-primary { background: var(--accent); color: var(--ink); box-shadow: 3px 3px 0 rgba(31, 42, 38, .9); }
.btn-primary:hover { background: var(--accent-light); transform: translate(-2px, -2px); box-shadow: 6px 6px 0 rgba(31, 42, 38, .9); }
.btn-primary:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 rgba(31, 42, 38, .9); }
.btn-outline { background: transparent; color: var(--paper); border-color: var(--paper); box-shadow: none; }
.btn-outline:hover { background: var(--paper); color: var(--ink); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

.guide-intro .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.intro-media { position: relative; }
.intro-img { width: 100%; border-radius: var(--radius); border: 3px solid var(--ink); box-shadow: 10px 10px 0 rgba(31, 42, 38, .85); }
.intro-content .section-title { margin-bottom: 14px; }
.intro-content p { margin-bottom: 14px; color: var(--text-weak); font-size: .97rem; }
.guide-points { list-style: none; margin-top: 18px; }
.guide-points li { padding: 11px 0 11px 28px; position: relative; border-bottom: 1px dashed var(--line); color: var(--text); font-size: .94rem; }
.guide-points li:last-child { border-bottom: none; }
.guide-points li::before { content: "✦"; position: absolute; left: 2px; color: var(--accent-dark); font-size: .9rem; }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card { background: var(--paper); border: 2px solid var(--ink); border-radius: var(--radius); padding: 24px; box-shadow: 6px 6px 0 rgba(31, 42, 38, .9); transition: transform .25s, box-shadow .25s; }
.feature-card:hover { transform: translate(-3px, -3px); box-shadow: 10px 10px 0 rgba(31, 42, 38, .9); }
.feature-num { font-family: var(--font-serif); font-size: 2.1rem; font-weight: 700; color: var(--accent-dark); line-height: 1; }
.feature-card img { width: 100%; height: 180px; object-fit: cover; border-radius: calc(var(--radius-sm) - 2px); border: 1px solid var(--line); margin: 16px 0 14px; }
.feature-card h3 { font-family: var(--font-serif); font-size: 1.12rem; color: var(--ink); margin-bottom: 8px; }
.feature-card p { color: var(--text-weak); font-size: .92rem; line-height: 1.7; }

.checklist-list { max-width: 860px; margin: 0 auto; }
.check-card { display: flex; align-items: center; gap: 22px; background: var(--paper); border: 2px solid var(--ink); padding: 24px 28px; border-radius: var(--radius); margin-bottom: 18px; box-shadow: 4px 4px 0 rgba(31, 42, 38, .85); position: relative; transition: transform .2s, box-shadow .2s; }
.check-card::before { content: ""; position: absolute; left: -8px; top: 18px; width: 5px; height: 28px; background: var(--accent); border-radius: 4px; }
.check-card:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0 rgba(31, 42, 38, .85); }
.check-num { font-family: var(--font-serif); font-size: 2.1rem; font-weight: 700; color: var(--accent-dark); line-height: 1; flex-shrink: 0; min-width: 48px; }
.check-info h3 { font-family: var(--font-serif); font-size: 1.08rem; color: var(--ink); margin-bottom: 4px; }
.check-info p { color: var(--text-weak); font-size: .92rem; line-height: 1.65; }
.check-status { margin-left: auto; flex-shrink: 0; display: inline-block; padding: 4px 14px; background: var(--ink); color: var(--paper); border-radius: 999px; font-size: .76rem; letter-spacing: .06em; border: 1px solid var(--ink); }

.steps { background: var(--ink); background-image: radial-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px); background-size: 14px 14px; position: relative; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.step-item { border: 1px solid rgba(246, 242, 234, .25); border-radius: var(--radius); padding: 30px 22px; text-align: center; transition: border-color .25s, background .25s, transform .25s; }
.step-item:hover { border-color: var(--accent); background: rgba(255, 255, 255, .04); transform: translateY(-3px); }
.step-num { font-family: var(--font-serif); font-size: 2.5rem; font-weight: 700; color: var(--accent); line-height: 1; display: block; margin-bottom: 14px; }
.step-item h3 { color: var(--paper); font-size: 1.05rem; margin-bottom: 10px; font-family: var(--font-serif); }
.step-item p { color: rgba(246, 242, 234, .62); font-size: .9rem; line-height: 1.65; }

.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item { background: var(--paper); border: 2px solid var(--line); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.faq-item:hover { border-color: var(--primary-light); }
.faq-item[open] { border-color: var(--ink); box-shadow: var(--shadow); }
.faq-item summary { cursor: pointer; padding: 18px 24px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; color: var(--text); transition: color .2s; }
.faq-item summary:hover { color: var(--primary); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.45rem; color: var(--accent-dark); font-weight: 700; transition: transform .25s; flex-shrink: 0; line-height: 1; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { padding: 0 24px 22px; color: var(--text-weak); font-size: .95rem; line-height: 1.75; }

.cta { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); text-align: center; color: var(--paper); }
.cta-inner h2 { font-family: var(--font-serif); font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 12px; }
.cta-inner p { color: rgba(246, 242, 234, .75); max-width: 480px; margin: 0 auto 28px; font-size: .98rem; }

.site-footer { background: var(--ink); color: rgba(246, 242, 234, .75); padding: 52px 0 32px; border-top: 4px solid var(--accent); margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; }
.footer-brand .brand { font-size: 1.15rem; }
.footer-brand p { font-size: .88rem; margin-top: 14px; line-height: 1.7; color: rgba(246, 242, 234, .5); }
.footer-col h4 { color: var(--accent); font-size: .95rem; margin-bottom: 14px; font-family: var(--font-serif); letter-spacing: .04em; }
.footer-col a { display: block; color: rgba(246, 242, 234, .6); font-size: .9rem; padding: 5px 0; transition: color .2s, padding-left .2s; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { margin-top: 36px; padding-top: 18px; border-top: 1px solid rgba(246, 242, 234, .12); text-align: center; font-size: .82rem; color: rgba(246, 242, 234, .42); }

@media (max-width: 1024px) {
  .intro-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .features-grid { gap: 18px; }
  .container { padding: 0 20px; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .page-banner { padding: 72px 0; }
  .header-inner { height: 64px; }
  .brand { font-size: 1.08rem; }
  .brand small { font-size: .55rem; }
  .nav-toggle { display: flex; flex-direction: column; gap: 5px; }
  .nav-toggle span { width: 22px; height: 2px; background: var(--paper); border-radius: 2px; transition: transform .25s, opacity .25s; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--ink); flex-direction: column; align-items: stretch; padding: 16px 24px 22px; gap: 4px; border-top: 1px solid rgba(246, 242, 234, .12); box-shadow: 0 16px 28px rgba(0, 0, 0, .2); }
  .site-nav.open { display: flex; }
  .nav-link { padding: 13px 2px; border-bottom: 1px solid rgba(246, 242, 234, .08); display: block; font-size: .96rem; }
  .nav-link.active::after { display: none; }
  .intro-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .check-card { flex-direction: column; align-items: flex-start; gap: 14px; }
  .check-status { margin-left: 0; }
  .banner-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 300px; }
  .section-head { margin-bottom: 32px; }
}
@media (max-width: 520px) {
  .page-banner { padding: 58px 0; }
  .container { padding: 0 16px; }
  .section { padding: 46px 0; }
  .check-card { padding: 20px; }
  .check-num { font-size: 1.7rem; min-width: 36px; }
  .feature-card img { height: 150px; }
  .footer-bottom { font-size: .76rem; line-height: 1.6; }
}