/* roulang page: index */
:root{
  --ink-900:#0F211D;
  --ink-700:#1B3A33;
  --brand-600:#1E5B4F;
  --brand-500:#2C7A67;
  --accent-500:#D9772E;
  --accent-300:#F0B27A;
  --paper:#F7F4EE;
  --paper-alt:#EFEAE0;
  --line:#DCD5C8;
  --text:#1C2B27;
  --text-soft:#61736D;
  --white:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 6px 18px rgba(15,33,29,.08);
  --shadow-2:0 12px 28px rgba(15,33,29,.14);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.8;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease;}
a:hover{color:var(--accent-500);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 14px;}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font);font-weight:700;line-height:1.3;letter-spacing:.2px;color:var(--text);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--alt{background:var(--paper-alt);}
.section--dark{background:var(--ink-900);color:#E6E1D6;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section-head{max-width:780px;margin-bottom:40px;}
.section-head h2{font-size:28px;}
.section-head .lead{margin-top:12px;font-size:16px;color:var(--text-soft);}
.section--dark .section-head .lead{color:#B4C3BD;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent-500);margin-bottom:12px;}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-500);display:inline-block;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;}
.btn--primary{background:var(--accent-500);color:#1A1206;box-shadow:0 8px 20px rgba(217,119,46,.26);}
.btn--primary:hover{background:#C2681F;color:#150F06;transform:translateY(-1px);}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(217,119,46,.2);}
.btn--solid{background:var(--brand-600);color:#fff;}
.btn--solid:hover{background:#174A41;color:#fff;transform:translateY(-1px);}
.btn--solid:active{transform:translateY(0);}
.btn--ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.42);}
.btn--ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-1px);}
.btn--outline{background:transparent;border-color:var(--brand-600);color:var(--brand-600);}
.btn--outline:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);}
.btn--light{background:#fff;color:var(--ink-900);}
.btn--light:hover{background:#F3EEE2;color:var(--ink-900);transform:translateY(-1px);}
.btn--block{width:100%;}
.btn--sm{padding:9px 18px;font-size:13.5px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:90;background:linear-gradient(120deg,var(--brand-600) 0%,var(--brand-500) 62%,var(--accent-500) 100%);color:#fff;box-shadow:0 6px 18px rgba(15,33,29,.18);}
.site-header::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.07) 0 2px,rgba(255,255,255,0) 2px 9px);}
.header-top{position:relative;z-index:2;border-bottom:1px solid rgba(255,255,255,.16);}
.header-top .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;font-size:12.5px;color:rgba(255,255,255,.82);}
.header-top span{display:inline-flex;align-items:center;gap:7px;}
.header-top i{color:var(--accent-300);font-size:11px;}
.nav-bar{position:relative;z-index:2;}
.nav-inner{display:flex;align-items:center;gap:20px;height:74px;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex-shrink:0;}
.brand:hover{color:#fff;}
.brand-mark{width:42px;height:42px;border-radius:11px;border:1.5px solid var(--accent-300);display:grid;place-items:center;background:rgba(255,255,255,.12);color:var(--accent-300);font-size:16px;font-weight:700;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;letter-spacing:.5px;}
.brand-text span{font-size:11px;color:rgba(255,255,255,.72);letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.main-nav a{position:relative;padding:9px 13px;border-radius:8px;font-size:15px;font-weight:500;color:rgba(255,255,255,.92);}
.main-nav a::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--accent-300);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.main-nav a:hover{background:rgba(255,255,255,.14);color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{background:rgba(255,255,255,.14);color:#fff;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:10px;flex-shrink:0;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:17px;cursor:pointer;margin-left:auto;}
.nav-toggle:hover{background:rgba(255,255,255,.24);}
.nav-drawer{display:none;position:relative;z-index:2;background:rgba(15,33,29,.34);border-top:1px solid rgba(255,255,255,.16);padding:6px 0 20px;}
.nav-drawer.is-open{display:block;}
.nav-drawer a{display:flex;align-items:center;height:48px;padding:0 24px;font-size:16px;color:#fff;border-bottom:1px solid rgba(255,255,255,.1);}
.nav-drawer a:hover{background:rgba(255,255,255,.12);color:#fff;}
.nav-drawer .btn{margin:16px 24px 0;width:calc(100% - 48px);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 78px;background:linear-gradient(160deg,#F7F4EE 0%,#EFEAE0 56%,#E6DFD0 100%);}
.hero::before{content:"";position:absolute;right:-140px;top:-180px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(44,122,103,.18),rgba(44,122,103,0) 68%);}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);gap:48px;align-items:center;}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(30,91,79,.1);color:var(--brand-600);font-size:13px;font-weight:600;margin-bottom:18px;}
.hero-kicker i{color:var(--accent-500);}
.hero h1{font-size:40px;line-height:1.28;letter-spacing:.4px;}
.hero h1 em{font-style:normal;color:var(--brand-600);}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text-soft);max-width:560px;}
.hero-desc{margin-top:16px;font-size:15px;color:var(--text-soft);max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.party-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;padding:12px 16px;background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:12px;}
.party-bar .dot{width:8px;height:8px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px rgba(217,119,46,.16);flex-shrink:0;}
.party-bar p{margin:0;font-size:13.5px;color:var(--text-soft);}
.party-bar strong{color:var(--brand-600);font-variant-numeric:tabular-nums;font-size:15px;}
.party-actions{display:flex;gap:14px;margin-left:auto;}
.party-actions a{font-size:13px;font-weight:600;color:var(--brand-600);border-bottom:1px solid rgba(30,91,79,.35);padding-bottom:1px;}
.party-actions a:hover{color:var(--accent-500);border-color:var(--accent-500);}
.hero-media{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:4/3;background:var(--paper-alt);box-shadow:var(--shadow-2);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,33,29,.04),rgba(15,33,29,.46));}
.float-badge{position:absolute;z-index:2;display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;background:rgba(15,33,29,.6);border:1px solid rgba(255,255,255,.26);backdrop-filter:blur(6px);color:#fff;font-size:13px;}
.float-badge b{color:var(--accent-300);font-size:15px;font-variant-numeric:tabular-nums;}
.float-badge--a{top:18px;left:18px;}
.float-badge--b{bottom:18px;right:18px;}

/* ---------- stats strip ---------- */
.stats-strip{background:var(--paper-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.stat{padding:26px 24px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat b{display:block;font-size:34px;line-height:1.1;color:var(--brand-600);font-variant-numeric:tabular-nums;}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-soft);}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.bento-card{display:flex;flex-direction:column;padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;}
.bento-card:hover{transform:translateY(-2px);border-color:rgba(44,122,103,.3);box-shadow:var(--shadow-2);}
.bento-lg{grid-column:span 2;grid-row:span 2;background:linear-gradient(150deg,#FFFFFF 0%,#F4F0E5 100%);}
.bento-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:rgba(44,122,103,.1);color:var(--brand-600);font-size:18px;margin-bottom:16px;}
.bento-card h3{font-size:19px;margin-bottom:8px;}
.bento-card p{font-size:14.5px;color:var(--text-soft);margin-bottom:16px;}
.bento-lg h3{font-size:24px;}
.bento-lg p{font-size:15.5px;}
.bento-shot{margin-top:auto;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--paper-alt);margin-bottom:18px;}
.bento-shot img{width:100%;height:100%;object-fit:cover;}
.card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-600);}
.card-link:hover{color:var(--accent-500);text-decoration:underline;text-underline-offset:4px;}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.scene-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(44,122,103,.3);}
.scene-card:nth-child(2),.scene-card:nth-child(4){margin-top:34px;}
.scene-thumb{aspect-ratio:16/11;background:var(--paper-alt);overflow:hidden;}
.scene-thumb img{width:100%;height:100%;object-fit:cover;}
.scene-body{padding:18px 20px 22px;}
.scene-body h3{font-size:17px;margin-bottom:8px;}
.scene-body p{font-size:14px;color:var(--text-soft);margin:0;}

/* ---------- demo ---------- */
.demo-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;}
.shot-frame{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-1);}
.shot-bar{display:flex;align-items:center;gap:6px;height:38px;padding:0 14px;background:var(--paper-alt);border-bottom:1px solid var(--line);}
.shot-bar i{width:10px;height:10px;border-radius:50%;background:var(--line);}
.shot-bar i:first-child{background:#D9A48A;}
.shot-body{aspect-ratio:16/10;background:var(--paper-alt);}
.shot-body img{width:100%;height:100%;object-fit:cover;}
.steps{display:flex;flex-direction:column;gap:24px;}
.step{display:flex;gap:18px;align-items:flex-start;}
.step-num{font-size:36px;font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--brand-500);font-variant-numeric:tabular-nums;}
.step h3{font-size:17px;margin-bottom:4px;}
.step p{font-size:14.5px;color:var(--text-soft);margin:0;}

/* ---------- forum ---------- */
.forum-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:32px;align-items:start;}
.forum-nav{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:10px;box-shadow:var(--shadow-1);}
.forum-nav li a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 14px;border-radius:10px;font-size:15px;color:var(--text);}
.forum-nav li a:hover{background:var(--paper-alt);color:var(--brand-600);}
.forum-nav .tag{font-size:12px;color:var(--text-soft);white-space:nowrap;}
.forum-nav .tag i{color:var(--accent-500);font-size:11px;margin-right:4px;}
.thread-list{display:grid;gap:20px;}
.thread-card{display:grid;grid-template-columns:180px minmax(0,1fr);gap:18px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.thread-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.thread-thumb{aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:var(--paper-alt);}
.thread-thumb img{width:100%;height:100%;object-fit:cover;}
.thread-body h3{font-size:17px;margin:8px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.thread-body h3 a{color:var(--text);}
.thread-body h3 a:hover{color:var(--brand-600);}
.thread-body p{font-size:14px;color:var(--text-soft);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.thread-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:12.5px;color:var(--text-soft);}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;background:rgba(44,122,103,.1);color:var(--brand-600);font-size:12px;font-weight:600;}
.badge--accent{background:rgba(217,119,46,.14);color:#A85A1D;}
.thread-hint{padding:22px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);font-size:14px;color:var(--text-soft);}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.case-card{display:grid;grid-template-columns:104px minmax(0,1fr);gap:16px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.case-thumb{aspect-ratio:1/1;border-radius:10px;overflow:hidden;background:var(--paper-alt);}
.case-thumb img{width:100%;height:100%;object-fit:cover;}
.case-body h3{font-size:16.5px;margin-bottom:6px;}
.case-body .conclusion{font-size:14px;color:var(--text-soft);margin-bottom:12px;}
.case-metrics{display:flex;gap:14px;}
.case-metrics div{font-size:12px;color:var(--text-soft);}
.case-metrics b{display:block;font-size:16px;color:var(--brand-600);font-variant-numeric:tabular-nums;}

/* ---------- plans ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch;padding-top:14px;}
.plan{position:relative;display:flex;flex-direction:column;padding:30px 26px;border-radius:var(--radius-card);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);color:#E9E4D9;transition:transform .2s ease,border-color .2s ease;}
.plan:hover{transform:translateY(-3px);border-color:rgba(240,178,122,.5);}
.plan--hot{background:rgba(217,119,46,.1);border:1.5px solid var(--accent-500);transform:translateY(-10px);}
.plan--hot:hover{transform:translateY(-13px);}
.plan-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);padding:4px 15px;border-radius:999px;background:var(--accent-500);color:#1A1206;font-size:12px;font-weight:700;white-space:nowrap;}
.plan h3{font-size:19px;color:#fff;}
.plan .price{margin:10px 0 6px;font-size:30px;font-weight:700;color:var(--accent-300);font-variant-numeric:tabular-nums;}
.plan .price small{font-size:13px;font-weight:400;color:#A9BBB5;margin-left:6px;}
.plan .plan-note{font-size:13px;color:#A9BBB5;margin-bottom:18px;}
.plan ul{margin-bottom:24px;}
.plan ul li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:14.5px;border-bottom:1px dashed rgba(255,255,255,.12);}
.plan ul li:last-child{border-bottom:0;}
.plan ul li i{color:var(--accent-300);font-size:12px;margin-top:6px;}
.plan .btn{margin-top:auto;}

/* ---------- reviews ---------- */
.review-wall{columns:3;column-gap:24px;}
.review{break-inside:avoid;margin-bottom:24px;padding:20px;background:#FDFBF7;border:1px solid var(--line);border-radius:var(--radius-card);transition:transform .2s ease,box-shadow .2s ease;}
.review:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:rgba(44,122,103,.12);color:var(--brand-600);font-weight:700;font-size:15px;flex-shrink:0;}
.review-top strong{display:block;font-size:14.5px;}
.review-top span{font-size:12px;color:var(--text-soft);}
.review p{font-size:14.5px;color:var(--text-soft);margin:0 0 10px;}
.stars{color:var(--accent-500);font-size:13px;letter-spacing:2px;}

/* ---------- reputation ---------- */
.rep-grid{display:grid;grid-template-columns:.62fr 1fr;gap:48px;align-items:center;}
.rep-num{font-size:64px;font-weight:700;line-height:1;color:var(--brand-600);font-variant-numeric:tabular-nums;}
.rep-num span{font-size:26px;}
.rep-cap{margin-top:10px;font-size:14px;color:var(--text-soft);max-width:260px;}
.rep-lines li{padding:16px 0;border-bottom:1px solid var(--line);font-size:15.5px;color:var(--text);}
.rep-lines li:first-child{border-top:1px solid var(--line);}
.rep-lines li i{color:var(--accent-500);margin-right:10px;font-size:13px;}

/* ---------- news / cms ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(44,122,103,.3);}
.post-thumb{display:block;aspect-ratio:16/10;background:var(--paper-alt);overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{display:flex;flex-direction:column;flex:1;padding:18px 20px 20px;}
.post-body h3{font-size:17px;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a{color:var(--text);}
.post-body h3 a:hover{color:var(--brand-600);}
.post-body p{font-size:14px;color:var(--text-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 14px;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-soft);font-variant-numeric:tabular-nums;}
.list-more{display:flex;justify-content:center;margin-top:40px;}
.empty-state{padding:52px 24px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);}
.empty-state i{font-size:26px;color:var(--accent-500);}
.empty-state p{margin:12px 0 8px;font-size:15px;color:var(--text-soft);}
.empty-state a{font-size:14px;font-weight:600;color:var(--brand-600);}

/* ---------- topics ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.topic-card{position:relative;display:block;aspect-ratio:1/1;border-radius:var(--radius-card);overflow:hidden;background:var(--paper-alt);}
.topic-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.topic-card:hover img{transform:scale(1.05);}
.topic-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;gap:4px;padding:18px;color:#fff;background:linear-gradient(180deg,rgba(15,33,29,0) 34%,rgba(15,33,29,.84) 100%);}
.topic-overlay strong{font-size:15.5px;line-height:1.4;}
.topic-overlay span{font-size:12.5px;color:rgba(255,255,255,.78);}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:.72fr 1fr;gap:48px;align-items:start;}
.check-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);}
.check-list li:first-child{border-top:1px solid var(--line);}
.check-list .num{font-size:13px;font-weight:700;color:var(--accent-500);min-width:26px;padding-top:3px;font-variant-numeric:tabular-nums;}
.check-list p{margin:0;font-size:15px;color:var(--text-soft);}
.check-list p strong{color:var(--text);display:block;font-size:15.5px;margin-bottom:2px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.accordion,.accordion ul{margin:0;padding:0;border:0;background:transparent;}
.accordion-item{border:1px solid var(--line)!important;border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden;}
.accordion-title{position:relative;display:block;padding:18px 56px 18px 22px;font-size:16.5px;font-weight:600;line-height:1.5;color:var(--text);background:#fff;border:0;border-left:3px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease;}
.accordion-title:hover{background:#FBF8F1;color:var(--brand-600);}
.accordion-item.is-active .accordion-title{background:#FBF8F1;color:var(--brand-600);border-left-color:var(--accent-500);}
.accordion-title::before{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);float:none;margin:0;font-size:22px;font-weight:400;line-height:1;color:var(--accent-500);transition:transform .2s ease;}
.accordion-item.is-active .accordion-title::before{content:"+";transform:translateY(-50%) rotate(45deg);}
.accordion-content{padding:0 22px 20px;border:0!important;background:#FBF8F1;color:var(--text-soft);font-size:15px;line-height:1.8;}
.accordion-content p:last-child{margin-bottom:0;}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;padding:48px;border-radius:20px;color:#fff;background:linear-gradient(120deg,var(--brand-600) 0%,var(--brand-500) 56%,var(--accent-500) 100%);box-shadow:var(--shadow-2);}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.08) 0 2px,rgba(255,255,255,0) 2px 10px);}
.cta-band h2{position:relative;z-index:1;font-size:27px;color:#fff;}
.cta-band p{position:relative;z-index:1;margin:10px 0 0;font-size:15px;color:rgba(255,255,255,.86);max-width:640px;}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;}
.cta-note{position:relative;z-index:1;grid-column:1/-1;margin:0;padding-top:18px;border-top:1px solid rgba(255,255,255,.24);font-size:13px;color:rgba(255,255,255,.78);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:#D7DDD7;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:38px;height:38px;font-size:15px;}
.footer-brand strong{color:#fff;font-size:16px;display:block;line-height:1.3;}
.footer-brand span{font-size:11.5px;color:#9BABA4;}
.site-footer p{font-size:14px;color:#AEBDB7;line-height:1.85;margin:0;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-links li{padding:7px 0;}
.footer-links a{font-size:14px;color:#C4CFC9;}
.footer-links a:hover{color:var(--accent-300);}
.footer-note li{padding:7px 0;font-size:14px;color:#AEBDB7;display:flex;gap:9px;}
.footer-note i{color:var(--accent-300);font-size:12px;margin-top:7px;}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;font-size:13px;color:#8FA19A;}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .bento{grid-template-columns:repeat(2,minmax(0,1fr));}
  .bento-lg{grid-column:span 2;grid-row:span 1;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-card:nth-child(2),.scene-card:nth-child(4){margin-top:0;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .case-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .review-wall{columns:2;}
}
@media screen and (max-width:1023px){
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:34px;}
  .hero h1{font-size:33px;}
  .hero-media{max-width:620px;}
  .demo-grid,.forum-grid,.rep-grid,.check-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .section{padding:64px 0;}
  .section-head h2{font-size:25px;}
  .plan-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .plan--hot{transform:none;}
  .plan--hot:hover{transform:translateY(-3px);}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media screen and (max-width:767px){
  .container{padding:0 20px;}
  .header-top .container{height:34px;font-size:11.5px;}
  .header-top .hide-sm{display:none;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .party-actions{margin-left:0;width:100%;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:20px;}
  .stat:nth-child(2n){border-right:0;}
  .stat b{font-size:28px;}
  .bento,.scene-grid,.post-grid,.topic-grid,.case-grid,.review-wall{grid-template-columns:minmax(0,1fr);}
  .review-wall{columns:1;}
  .thread-card{grid-template-columns:minmax(0,1fr);}
  .thread-thumb{aspect-ratio:16/9;}
  .case-card{grid-template-columns:86px minmax(0,1fr);}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .rep-num{font-size:48px;}
  .accordion-title{font-size:15.5px;padding:16px 48px 16px 18px;}
}
@media screen and (max-width:520px){
  .brand-text span{display:none;}
  .hero h1{font-size:25px;}
  .hero-media{aspect-ratio:4/3;}
  .float-badge{font-size:12px;padding:7px 13px;}
  .case-metrics{flex-wrap:wrap;gap:10px;}
  .stage-pad{padding:0;}
}

/* roulang page: article */
:root{
  --ink-900:#0F211D;
  --ink-700:#1B3A33;
  --brand-600:#1E5B4F;
  --brand-500:#2C7A67;
  --accent-500:#D9772E;
  --accent-300:#F0B27A;
  --paper:#F7F4EE;
  --paper-alt:#EFEAE0;
  --line:#DCD5C8;
  --text:#1C2B27;
  --text-soft:#61736D;
  --white:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 6px 18px rgba(15,33,29,.08);
  --shadow-2:0 12px 28px rgba(15,33,29,.14);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.8;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease;}
a:hover{color:var(--accent-500);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--alt{background:var(--paper-alt);}
.section--dark{background:var(--ink-900);color:#E6E1D6;}
.section-head{max-width:780px;margin-bottom:40px;}
.section-head h2{font-size:28px;line-height:1.4;margin:0;color:var(--ink-900);}
.section-head .lead{margin-top:12px;font-size:16px;color:var(--text-soft);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent-500);margin-bottom:12px;}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-500);display:inline-block;}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;}
.btn--primary{background:var(--accent-500);color:#1A1206;box-shadow:0 8px 20px rgba(217,119,46,.26);}
.btn--primary:hover{background:#C2681F;color:#150F06;transform:translateY(-1px);}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(217,119,46,.2);}
.btn--solid{background:var(--brand-600);color:#fff;}
.btn--solid:hover{background:#174A41;color:#fff;transform:translateY(-1px);}
.btn--solid:active{transform:translateY(0);}
.btn--ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.42);}
.btn--ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-1px);}
.btn--outline{background:transparent;border-color:var(--brand-600);color:var(--brand-600);}
.btn--outline:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);}
.btn--light{background:#fff;color:var(--ink-900);}
.btn--light:hover{background:#F3EEE2;color:var(--ink-900);transform:translateY(-1px);}
.btn--ghostline{background:transparent;border-color:rgba(255,255,255,.62);color:#fff;}
.btn--ghostline:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-1px);}
.btn--sm{padding:9px 18px;font-size:13.5px;}
.btn--block{width:100%;}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:90;background:linear-gradient(120deg,var(--brand-600) 0%,var(--brand-500) 62%,var(--accent-500) 100%);color:#fff;box-shadow:0 6px 18px rgba(15,33,29,.18);}
.site-header::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.07) 0 2px,rgba(255,255,255,0) 2px 9px);}
.header-top{position:relative;z-index:2;border-bottom:1px solid rgba(255,255,255,.16);}
.header-top .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding-top:6px;padding-bottom:6px;font-size:12.5px;color:rgba(255,255,255,.82);}
.header-top span{display:inline-flex;align-items:center;gap:7px;}
.header-top i{color:var(--accent-300);font-size:11px;}
.nav-bar{position:relative;z-index:2;}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:74px;flex-wrap:nowrap;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex-shrink:0;}
.brand:hover{color:#fff;}
.brand-mark{width:42px;height:42px;border-radius:11px;border:1.5px solid var(--accent-300);display:grid;place-items:center;background:rgba(255,255,255,.12);color:var(--accent-300);font-size:16px;font-weight:700;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;letter-spacing:.5px;}
.brand-text span{font-size:11px;color:rgba(255,255,255,.74);letter-spacing:.3px;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.main-nav a{position:relative;padding:9px 13px;border-radius:8px;font-size:15px;font-weight:500;color:rgba(255,255,255,.92);}
.main-nav a::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--accent-300);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.main-nav a:hover{background:rgba(255,255,255,.14);color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{background:rgba(255,255,255,.14);color:#fff;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:8px;flex-shrink:0;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:17px;cursor:pointer;margin-left:auto;}
.nav-toggle:hover{background:rgba(255,255,255,.24);}
.nav-drawer{display:none;position:relative;z-index:2;background:rgba(15,33,29,.36);border-top:1px solid rgba(255,255,255,.16);padding:6px 0 20px;}
.nav-drawer.is-open{display:block;}
.nav-drawer a{display:flex;align-items:center;min-height:48px;padding:0 24px;font-size:16px;color:#fff;border-bottom:1px solid rgba(255,255,255,.1);}
.nav-drawer a:hover{background:rgba(255,255,255,.12);color:#fff;}
.nav-drawer .btn{margin:16px 24px 0;width:calc(100% - 48px);border-bottom:0;justify-content:center;}
/* ---------- article topbar ---------- */
.article-topbar{background:var(--paper-alt);border-bottom:1px solid var(--line);padding:14px 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--text-soft);}
.breadcrumb a{color:var(--text-soft);}
.breadcrumb a:hover{color:var(--accent-500);}
.breadcrumb .sep{color:#BCB3A4;}
.breadcrumb .current{color:var(--ink-700);font-weight:600;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.7;white-space:nowrap;}
.badge--accent{background:rgba(217,119,46,.14);color:#A4571A;border:1px solid rgba(217,119,46,.32);}
.badge--brand{background:rgba(30,91,79,.1);color:var(--brand-600);border:1px solid rgba(30,91,79,.24);}
.badge--line{background:transparent;color:var(--text-soft);border:1px solid var(--line);}
/* ---------- article main ---------- */
.article-main{width:100%;max-width:800px;margin:0 auto;padding:0 24px;}
.article-hero{padding:44px 0 28px;background:var(--paper);}
.article-kicker{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.article-hero h1{font-size:34px;line-height:1.42;margin:0 0 16px;color:var(--ink-900);font-weight:700;letter-spacing:-.2px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:13.5px;color:var(--text-soft);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--brand-500);font-size:12px;}
.article-divider{height:1px;background:var(--line);border:0;margin:26px 0 0;}
/* ---------- article body ---------- */
.article-body-wrap{padding:8px 0 0;background:var(--paper);}
.article-body{font-size:16.5px;line-height:1.85;color:#26332F;overflow-wrap:break-word;}
.article-body p{margin:0 0 18px;}
.article-body h2{position:relative;font-size:24px;line-height:1.42;margin:42px 0 16px;padding-left:14px;color:var(--ink-900);font-weight:700;}
.article-body h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:3px;border-radius:2px;background:var(--accent-500);}
.article-body h3{font-size:19px;line-height:1.5;margin:30px 0 12px;padding-left:12px;border-left:3px solid rgba(44,122,103,.52);color:var(--ink-900);font-weight:700;}
.article-body h4{font-size:16.5px;margin:22px 0 10px;color:var(--ink-700);font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:9px;}
.article-body li::marker{color:var(--brand-500);}
.article-body blockquote{margin:0 0 20px;padding:16px 22px;background:var(--paper-alt);border-left:4px solid var(--brand-500);border-radius:0 10px 10px 0;color:#33423D;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:22px 0;width:100%;object-fit:cover;background:var(--paper-alt);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--text-soft);text-align:center;margin-top:10px;line-height:1.6;}
.article-body a{color:var(--brand-600);border-bottom:1px solid rgba(30,91,79,.38);}
.article-body a:hover{color:var(--accent-500);border-bottom-color:var(--accent-500);}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:14.5px;border:1px solid var(--line);border-radius:10px;overflow:hidden;}
.article-body th{background:var(--paper-alt);text-align:left;font-weight:600;color:var(--ink-900);}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top;}
.article-body tr:last-child td{border-bottom:0;}
.article-body code{background:rgba(30,91,79,.1);color:var(--brand-600);padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body pre{background:var(--ink-900);color:#D7E4DF;padding:16px 18px;border-radius:12px;overflow:auto;margin:0 0 22px;line-height:1.7;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
/* ---------- notice ---------- */
.article-notice{margin:38px auto 0;padding:22px 24px;background:var(--paper-alt);border:1px solid var(--line);border-radius:var(--radius-card);max-width:800px;}
.article-notice h3{font-size:16px;margin:0 0 10px;display:flex;align-items:center;gap:9px;color:var(--ink-900);font-weight:700;}
.article-notice h3 i{color:var(--brand-500);font-size:14px;}
.article-notice p{margin:0 0 6px;font-size:14px;line-height:1.75;color:var(--text-soft);}
.article-notice p:last-child{margin-bottom:0;}
/* ---------- empty state ---------- */
.empty-state{max-width:800px;margin:24px auto 0;padding:52px 28px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);}
.empty-state i{font-size:34px;color:var(--accent-500);margin-bottom:16px;}
.empty-state h3{margin:0 0 10px;font-size:20px;color:var(--ink-900);}
.empty-state p{margin:0 0 22px;color:var(--text-soft);font-size:14.5px;}
/* ---------- related ---------- */
.related-section{padding:64px 0 0;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.related-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;color:inherit;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(44,122,103,.4);color:inherit;}
.related-thumb{aspect-ratio:16/10;background:var(--paper-alt);overflow:hidden;}
.related-thumb img{width:100%;height:100%;object-fit:cover;}
.related-body{padding:16px 18px 20px;}
.related-body .badge{margin-bottom:10px;}
.related-body h3{font-size:16px;line-height:1.55;margin:0 0 10px;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-meta{font-size:12.5px;color:var(--text-soft);display:flex;align-items:center;gap:8px;}
/* ---------- post nav ---------- */
.post-nav{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;margin-top:44px;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.post-nav a{display:inline-flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600;color:var(--brand-600);}
.post-nav a:hover{color:var(--accent-500);}
.post-nav .divider-dot{color:#BCB3A4;font-size:12px;}
/* ---------- cta strip ---------- */
.cta-section{padding:56px 0 80px;}
.cta-strip{position:relative;overflow:hidden;border-radius:16px;padding:34px 38px;background:linear-gradient(120deg,var(--brand-600) 0%,var(--brand-500) 58%,var(--accent-500) 100%);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;box-shadow:var(--shadow-1);}
.cta-strip::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.08) 0 2px,rgba(255,255,255,0) 2px 10px);}
.cta-strip > *{position:relative;z-index:1;}
.cta-strip h2{margin:0 0 8px;font-size:24px;line-height:1.45;color:#fff;}
.cta-strip p{margin:0;font-size:14px;color:rgba(255,255,255,.86);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:#D9D3C6;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);}
.footer-brand strong{display:block;color:#fff;font-size:17px;line-height:1.3;}
.footer-brand span span{display:block;font-size:12px;color:#9FB3AC;margin-top:4px;}
.site-footer p{margin:0;font-size:14px;line-height:1.8;color:#A9BAB4;max-width:420px;}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:700;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#C4CFCA;font-size:14px;}
.footer-links a:hover{color:var(--accent-300);}
.footer-note{list-style:none;margin:0;padding:0;}
.footer-note li{display:flex;gap:10px;font-size:13.5px;line-height:1.65;color:#A9BAB4;margin-bottom:11px;}
.footer-note i{color:var(--accent-300);margin-top:5px;font-size:12px;flex-shrink:0;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:#8FA2A0;}
/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-hero h1{font-size:31px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-main{padding:0 20px;}
  .header-top .container span:last-child{display:none;}
  .article-hero{padding:32px 0 22px;}
  .article-hero h1{font-size:26px;line-height:1.5;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:17.5px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-strip{padding:26px 22px;}
  .cta-strip h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .post-nav{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:519px){
  .brand-text span{display:none;}
  .brand-text strong{font-size:15.5px;}
  .header-top{display:none;}
  .article-meta{gap:6px 14px;font-size:12.5px;}
  .article-hero h1{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .article-notice{padding:18px;}
  .section{padding:48px 0;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0F211D;
  --ink-700:#1B3A33;
  --brand-600:#1E5B4F;
  --brand-500:#2C7A67;
  --accent-500:#D9772E;
  --accent-300:#F0B27A;
  --paper:#F7F4EE;
  --paper-alt:#EFEAE0;
  --line:#DCD5C8;
  --text:#1C2B27;
  --text-soft:#61736D;
  --white:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 6px 18px rgba(15,33,29,.08);
  --shadow-2:0 12px 28px rgba(15,33,29,.14);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.8;color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font);font-weight:700;line-height:1.35;color:var(--text);letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease;}
a:hover{color:var(--accent-500);}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
::selection{background:rgba(217,119,46,.22);}
[id]{scroll-margin-top:96px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--alt{background:var(--paper-alt);}
.section--dark{background:var(--ink-900);color:#E6E1D6;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section-head{max-width:780px;margin-bottom:40px;}
.section-head h2{font-size:28px;}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-soft);}
.section--dark .section-head p{color:#B4C3BD;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent-500);margin-bottom:12px;}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-500);display:inline-block;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;}
.btn:hover{text-decoration:none;}
.btn--primary{background:var(--accent-500);color:#1A1206;box-shadow:0 8px 20px rgba(217,119,46,.26);}
.btn--primary:hover{background:#C2681F;color:#150F06;transform:translateY(-1px);}
.btn--primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(217,119,46,.2);}
.btn--solid{background:var(--brand-600);color:#fff;}
.btn--solid:hover{background:#174A41;color:#fff;transform:translateY(-1px);}
.btn--solid:active{transform:translateY(0);}
.btn--ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.42);}
.btn--ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-1px);}
.btn--outline{background:transparent;border-color:var(--brand-600);color:var(--brand-600);}
.btn--outline:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);}
.btn--light{background:#fff;color:var(--ink-900);}
.btn--light:hover{background:#F3EEE2;color:var(--ink-900);transform:translateY(-1px);}
.btn--block{width:100%;}
.btn--sm{padding:9px 18px;font-size:13.5px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:linear-gradient(120deg,var(--brand-600) 0%,var(--brand-500) 62%,var(--accent-500) 100%);color:#fff;box-shadow:0 6px 18px rgba(15,33,29,.18);}
.site-header::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.07) 0 2px,rgba(255,255,255,0) 2px 9px);}
.header-top{position:relative;z-index:2;border-bottom:1px solid rgba(255,255,255,.16);}
.header-top .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;font-size:12.5px;color:rgba(255,255,255,.82);}
.header-top span{display:inline-flex;align-items:center;gap:7px;}
.header-top i{color:var(--accent-300);font-size:11px;}
.nav-bar{position:relative;z-index:2;}
.nav-inner{display:flex;align-items:center;gap:20px;height:74px;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;flex-shrink:0;text-decoration:none;}
.brand:hover{color:#fff;}
.brand-mark{width:42px;height:42px;border-radius:11px;border:1.5px solid var(--accent-300);display:grid;place-items:center;background:rgba(255,255,255,.12);color:var(--accent-300);font-size:16px;font-weight:700;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;letter-spacing:.5px;color:#fff;}
.brand-text span{font-size:11px;color:rgba(255,255,255,.72);letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.main-nav a{position:relative;padding:9px 13px;border-radius:8px;font-size:15px;font-weight:500;color:rgba(255,255,255,.92);text-decoration:none;}
.main-nav a::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--accent-300);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.main-nav a:hover{background:rgba(255,255,255,.14);color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{background:rgba(255,255,255,.14);color:#fff;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:10px;flex-shrink:0;text-decoration:none;}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:17px;cursor:pointer;margin-left:auto;}
.nav-toggle:hover{background:rgba(255,255,255,.24);}
.nav-drawer{display:none;position:relative;z-index:2;background:rgba(15,33,29,.34);border-top:1px solid rgba(255,255,255,.16);padding:6px 0 20px;}
.nav-drawer.is-open{display:block;}
.nav-drawer a{display:flex;align-items:center;height:48px;padding:0 24px;font-size:16px;color:#fff;border-bottom:1px solid rgba(255,255,255,.1);text-decoration:none;}
.nav-drawer a:hover{background:rgba(255,255,255,.12);color:#fff;}
.nav-drawer .btn{margin:16px 24px 0;width:calc(100% - 48px);}

/* ---------- 分类头部 ---------- */
.cat-head{position:relative;overflow:hidden;padding:34px 0 54px;background:linear-gradient(160deg,#F7F4EE 0%,#EFEAE0 58%,#E7E0D1 100%);border-bottom:1px solid var(--line);}
.cat-head::before{content:"";position:absolute;right:-160px;top:-210px;width:540px;height:540px;border-radius:50%;background:radial-gradient(circle,rgba(44,122,103,.16),rgba(44,122,103,0) 68%);}
.crumbs{position:relative;z-index:1;display:flex;align-items:center;gap:9px;font-size:13px;color:var(--text-soft);margin-bottom:24px;}
.crumbs a{color:var(--text-soft);text-decoration:none;}
.crumbs a:hover{color:var(--accent-500);}
.crumbs i{font-size:10px;color:#BFB6A5;}
.crumbs span{color:var(--brand-600);font-weight:600;}
.cat-head-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.84fr);gap:44px;align-items:end;}
.cat-head h1{font-size:40px;line-height:1.24;letter-spacing:-.5px;color:var(--ink-900);}
.cat-head h1::after{content:"";display:block;width:56px;height:4px;border-radius:2px;background:var(--accent-500);margin-top:18px;}
.cat-sub{margin-top:18px;font-size:15.5px;line-height:1.85;color:var(--text-soft);max-width:580px;}
.cat-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;}
.stat-box{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:12px;padding:18px 14px;text-align:left;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;}
.stat-box:hover{transform:translateY(-2px);border-color:rgba(44,122,103,.34);box-shadow:var(--shadow-1);}
.stat-box strong{display:block;font-size:17px;font-weight:700;line-height:1.35;color:var(--brand-600);font-variant-numeric:tabular-nums;}
.stat-box span{display:block;margin-top:6px;font-size:12px;line-height:1.55;color:var(--text-soft);}

/* ---------- 标签栏 ---------- */
.filter-bar{background:var(--white);border-bottom:1px solid var(--line);}
.filter-bar .container{display:flex;align-items:center;gap:10px;padding-top:16px;padding-bottom:16px;overflow-x:auto;scrollbar-width:none;}
.filter-bar .container::-webkit-scrollbar{display:none;}
.tag{display:inline-flex;align-items:center;padding:8px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text-soft);font-size:14px;font-weight:500;white-space:nowrap;cursor:pointer;transition:all .18s ease;}
.tag:hover{border-color:var(--brand-500);color:var(--brand-600);background:rgba(44,122,103,.06);}
.tag.is-current{background:var(--accent-500);border-color:var(--accent-500);color:#1A1206;font-weight:600;}
.tag.is-current:hover{background:#C2681F;border-color:#C2681F;color:#150F06;}

/* ---------- 资源列表 ---------- */
.res-list{display:flex;flex-direction:column;gap:24px;}
.res-card{display:grid;grid-template-columns:284px minmax(0,1fr);gap:26px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.res-card:hover{transform:translateY(-2px);border-color:rgba(44,122,103,.32);box-shadow:var(--shadow-2);}
.res-thumb{position:relative;aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:var(--paper-alt);}
.res-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.res-card:hover .res-thumb img{transform:scale(1.04);}
.res-body{display:flex;flex-direction:column;gap:10px;padding:4px 4px 4px 0;min-width:0;}
.res-badges{display:flex;flex-wrap:wrap;gap:8px;}
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.7;border:1px solid var(--line);background:var(--paper);color:var(--text-soft);font-variant-numeric:tabular-nums;}
.badge--brand{background:rgba(30,91,79,.1);border-color:rgba(30,91,79,.24);color:var(--brand-600);}
.res-body h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--ink-900);}
.res-body p{font-size:14.5px;line-height:1.8;color:var(--text-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.res-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:10px;border-top:1px dashed var(--line);}
.res-meta{font-size:13px;color:var(--text-soft);display:inline-flex;align-items:center;gap:7px;}
.res-meta i{color:var(--brand-500);font-size:12px;}

/* ---------- 版本记录 ---------- */
.version-table{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--white);}
.vt-row{display:grid;grid-template-columns:130px 150px minmax(0,1fr);gap:18px;align-items:center;padding:15px 24px;font-size:14.5px;border-top:1px solid var(--line);}
.vt-row:first-child{border-top:0;}
.vt-head{background:var(--ink-700);color:#E6E1D6;font-size:13px;font-weight:600;letter-spacing:.05em;padding-top:13px;padding-bottom:13px;}
.vt-row:nth-child(even){background:var(--paper);}
.vt-ver{font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;}
.vt-date{color:var(--text-soft);font-variant-numeric:tabular-nums;}
.vt-desc{color:var(--text);line-height:1.7;}

/* ---------- 下载前必读 ---------- */
.readme-grid{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:56px;align-items:start;}
.readme-list li{display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;padding:20px 0;border-top:1px solid var(--line);}
.readme-list li:first-child{border-top:0;padding-top:0;}
.readme-list .num{font-size:24px;font-weight:700;line-height:1.3;color:var(--accent-500);font-variant-numeric:tabular-nums;}
.readme-list h4{font-size:16.5px;font-weight:700;margin-bottom:4px;}
.readme-list p{font-size:14.5px;color:var(--text-soft);line-height:1.8;}

/* ---------- 专题卡 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.topic-card{display:block;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(44,122,103,.32);}
.topic-cover{position:relative;aspect-ratio:16/10;background:var(--paper-alt);overflow:hidden;}
.topic-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.topic-card:hover .topic-cover img{transform:scale(1.05);}
.topic-body{padding:18px 20px 20px;}
.topic-body .badge{margin-bottom:10px;}
.topic-body h3{font-size:17px;line-height:1.5;color:var(--ink-900);}
.topic-body span.more{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:13.5px;font-weight:600;color:var(--accent-500);}

/* ---------- FAQ ---------- */
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{background:var(--white);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.accordion-item.is-active{border-color:rgba(217,119,46,.45);box-shadow:inset 3px 0 0 var(--accent-500),var(--shadow-1);}
.accordion-title{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:56px;padding:16px 22px;font-size:16px;font-weight:700;color:var(--ink-900);border:0;background:transparent;text-decoration:none;transition:color .18s ease;}
.accordion-title:hover{color:var(--brand-600);background:rgba(44,122,103,.05);}
.accordion-title::before{display:none;content:none;}
.accordion-title::after{content:"+";font-size:22px;font-weight:400;line-height:1;color:var(--accent-500);transition:transform .25s ease;}
.accordion-item.is-active .accordion-title::after{transform:rotate(45deg);}
.accordion-content{padding:0 22px 20px;border:0;background:transparent;color:var(--text-soft);font-size:14.5px;line-height:1.85;}
.accordion-content p{margin:0;}

/* ---------- 尾部 ---------- */
.end-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px;}
.more-link{display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--brand-600);text-decoration:none;border-bottom:1px solid rgba(30,91,79,.35);padding-bottom:3px;transition:all .18s ease;}
.more-link:hover{color:var(--accent-500);border-color:var(--accent-500);gap:14px;}
.back-home{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-soft);text-decoration:none;}
.back-home:hover{color:var(--brand-600);}
.end-note{font-size:13px;color:var(--text-soft);margin-top:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#C9D3CE;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.35fr .85fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:40px;height:40px;border-radius:10px;border:1.5px solid var(--accent-300);display:grid;place-items:center;color:var(--accent-300);background:rgba(255,255,255,.08);font-weight:700;font-size:15px;flex-shrink:0;}
.footer-brand strong{display:block;color:#fff;font-size:16px;line-height:1.3;}
.footer-brand span span{display:block;font-size:11.5px;color:rgba(255,255,255,.6);letter-spacing:.3px;margin-top:3px;}
.site-footer p{color:#A9B8B2;font-size:13.5px;line-height:1.85;}
.site-footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#A9B8B2;font-size:13.5px;text-decoration:none;transition:color .18s ease,padding-left .18s ease;}
.footer-links a:hover{color:var(--accent-300);padding-left:4px;}
.footer-note li{display:flex;gap:9px;align-items:flex-start;color:#A9B8B2;font-size:13px;line-height:1.75;margin-bottom:10px;}
.footer-note i{color:var(--accent-300);font-size:11px;margin-top:6px;flex-shrink:0;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.55);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cat-head-grid{gap:32px;}
  .cat-head h1{font-size:36px;}
  .res-card{grid-template-columns:236px minmax(0,1fr);gap:22px;}
}
@media (max-width:1023px){
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:66px;}
  .section{padding:64px 0;}
  .cat-head-grid{grid-template-columns:1fr;align-items:start;gap:28px;}
  .cat-head h1{font-size:32px;}
  .cat-stats{grid-template-columns:repeat(3,minmax(0,1fr));}
  .readme-grid{grid-template-columns:1fr;gap:32px;}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .header-top .container span:last-child{display:none;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .container{padding:0 20px;}
  .section-head h2{font-size:24px;}
  .cat-head{padding:26px 0 40px;}
  .cat-head h1{font-size:28px;}
  .cat-head h1::after{width:44px;margin-top:14px;}
  .cat-stats{grid-template-columns:1fr;gap:10px;}
  .stat-box{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;text-align:left;}
  .stat-box span{margin-top:0;text-align:right;}
  .res-card{grid-template-columns:1fr;gap:16px;padding:16px;}
  .res-thumb{aspect-ratio:16/9;}
  .res-body h3{font-size:17.5px;}
  .res-foot{flex-direction:column;align-items:flex-start;gap:12px;}
  .res-foot .btn{width:100%;}
  .vt-row{grid-template-columns:1fr;gap:4px;padding:14px 18px;font-size:14px;}
  .vt-head{display:none;}
  .vt-ver{font-size:15px;}
  .readme-list li{grid-template-columns:36px minmax(0,1fr);gap:12px;padding:16px 0;}
  .readme-list .num{font-size:20px;}
  .topic-grid{grid-template-columns:1fr;}
  .accordion-title{padding:14px 18px;font-size:15px;gap:12px;}
  .accordion-content{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .end-wrap{flex-direction:column;align-items:flex-start;gap:14px;}
  .header-top .container{height:auto;padding-top:8px;padding-bottom:8px;font-size:12px;}
  .header-top .container span{line-height:1.6;}
}
@media (max-width:520px){
  .brand-text strong{font-size:15px;}
  .brand-text span{font-size:10px;}
  .brand-mark{width:38px;height:38px;}
  .cat-head h1{font-size:26px;}
  .res-badges{gap:6px;}
  .badge{font-size:11.5px;padding:2px 9px;}
  .more-link{font-size:14px;}
}