/* roulang page: index */
:root{
  --c-primary:#4B2E4A;
  --c-primary-deep:#33203A;
  --c-accent:#E0714F;
  --c-accent-dark:#C85F3F;
  --c-accent-soft:#F6D9CE;
  --c-third:#4F8A7B;
  --c-bg:#FAF6F1;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EBE3;
  --c-ink:#221A24;
  --c-ink-2:#6B5F6A;
  --c-line:#E4DAD1;
  --r-card:14px;
  --r-btn:8px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(34,26,36,.06);
  --sh-2:0 10px 26px -14px rgba(34,26,36,.28);
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:130px}
body{margin:0;font-family:var(--font-body);font-size:16px;line-height:1.8;color:var(--c-ink);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--white{background:var(--c-surface)}
.section--alt{background:var(--c-surface-2)}
.section--dark{background:var(--c-primary-deep);color:#fff}
.section--dark .sec-title{color:#fff}
.section--dark .sec-desc{color:rgba(255,255,255,.76)}
.sec-head{max-width:780px;margin-bottom:40px}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--c-accent)}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block}
.sec-title{font-size:30px;margin:12px 0 14px;letter-spacing:.01em}
.sec-desc{color:var(--c-ink-2);font-size:15px;line-height:1.9}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:15px;font-weight:500;cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;background:none;line-height:1}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:#F3E9F2;color:var(--c-primary)}
.btn-ghost-light{border-color:rgba(255,255,255,.62);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:500;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.btn-link:hover{color:var(--c-accent)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1}
.badge-soft{background:var(--c-accent-soft);color:#8A3E28}
.badge-line{border:1px solid rgba(75,46,74,.35);color:var(--c-primary);background:transparent}
.badge-green{background:rgba(79,138,123,.14);color:#2F6455}
.badge-plain{background:var(--c-surface-2);color:var(--c-ink-2)}
/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 8px 22px -16px rgba(34,26,36,.55)}
.brand-inner{display:flex;align-items:center;gap:22px;min-height:74px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{width:40px;height:40px;border-radius:11px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;letter-spacing:.02em}
.logo-text strong{display:block;font-size:18px;line-height:1.25;color:var(--c-primary);font-weight:700}
.logo-text small{display:block;font-size:12px;color:var(--c-ink-2);line-height:1.5}
.search{flex:1 1 auto;max-width:400px;margin-left:auto;display:flex;align-items:center;gap:6px;background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:999px;padding:4px 4px 4px 16px;transition:border-color .18s ease,box-shadow .18s ease}
.search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(75,46,74,.12);background:#fff}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:none;height:34px;font-size:14px;color:var(--c-ink)}
.search input::placeholder{color:#9A8E96}
.search button{height:34px;padding:0 16px;border-radius:999px;border:0;background:var(--c-primary);color:#fff;font-size:13px;cursor:pointer;transition:background .18s ease}
.search button:hover{background:var(--c-accent)}
.chip-nav{background:#fff;border-top:1px solid var(--c-line)}
.chip-inner{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none;-ms-overflow-style:none}
.chip-inner::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:14px;background:transparent;transition:all .18s ease;white-space:nowrap}
.chip:hover{background:var(--c-accent-soft);color:var(--c-primary);border-color:var(--c-accent-soft)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.chip.is-active:hover{background:var(--c-primary-deep);color:#fff}
/* Hero */
.hero{padding:52px 0 76px;background:linear-gradient(180deg,#F5EEE7 0%,var(--c-bg) 100%)}
.hero-grid{display:grid;grid-template-columns:1.42fr .9fr;gap:24px;align-items:start}
.hero-main{position:relative;border-radius:20px;padding:46px 44px;color:#fff;overflow:hidden;background-image:linear-gradient(118deg,rgba(51,32,58,.95) 0%,rgba(51,32,58,.86) 48%,rgba(75,46,74,.62) 100%),url("/assets/images/63e391467dfd2b7b.jpg");background-size:cover;background-position:center;box-shadow:0 22px 48px -30px rgba(34,26,36,.65)}
.hero-badge{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:rgba(224,113,79,.22);border:1px solid rgba(224,113,79,.55);color:#FFD9CC;font-size:12.5px;letter-spacing:.04em}
.hero-main h1{font-size:40px;line-height:1.28;margin:18px 0 18px;letter-spacing:.005em}
.hero-lead{font-size:15.5px;line-height:1.95;color:rgba(255,255,255,.87);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stats li{font-size:13px;color:rgba(255,255,255,.72)}
.hero-stats strong{display:block;font-size:20px;font-weight:700;color:#fff;line-height:1.3}
.hero-side{display:grid;gap:20px}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.side-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(75,46,74,.28)}
.side-card h3{font-size:16.5px;margin:12px 0 8px;line-height:1.55}
.side-card p{font-size:13.5px;color:var(--c-ink-2);line-height:1.8}
.side-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;font-size:12px;color:var(--c-ink-2)}
.side-card--media{padding:0;overflow:hidden}
.side-card--media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.media-body{padding:16px 20px 20px}
.side-card--media h3{margin-top:0}
.hero-side .side-card:nth-child(2){margin-left:-26px}
/* Matrix */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.m-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;position:relative}
.m-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(75,46,74,.3)}
.m-card.wide{grid-column:span 2;padding:0;overflow:hidden;gap:0}
.m-cover{position:relative;overflow:hidden}
.m-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.m-card.wide:hover .m-cover img{transform:scale(1.04)}
.m-corner{position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:rgba(51,32,58,.86);color:#FFD9CC;font-size:12px;letter-spacing:.04em}
.m-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:8px}
.m-icon{width:40px;height:40px;border-radius:11px;background:var(--c-accent-soft);color:var(--c-primary);display:grid;place-items:center}
.m-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.m-card h3{font-size:19px;margin-top:2px}
.m-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8}
/* Compare */
.compare{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.compare-card{padding:26px 22px;border-right:1px solid var(--c-line);display:flex;flex-direction:column;gap:12px;transition:background .2s ease}
.compare-card:last-child{border-right:0}
.compare-card:hover{background:#FDF8F4}
.compare-card h3{font-size:17px}
.compare-card .for{font-size:13px;color:var(--c-third);font-weight:500}
.compare-card ul{display:flex;flex-direction:column;gap:6px;margin:2px 0 6px}
.compare-card ul li{position:relative;padding-left:14px;font-size:13.5px;color:var(--c-ink-2);line-height:1.7}
.compare-card ul li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--c-accent)}
.compare-card .rate{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);margin-top:auto}
.stars{color:var(--c-accent);letter-spacing:2px;font-size:13px}
.compare-card .btn{margin-top:6px;width:100%}
/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-bottom:34px;border-bottom:1px solid var(--c-line)}
.stat-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.15}
.stat-num small{font-size:16px;font-weight:500;margin-left:4px;color:var(--c-ink-2)}
.stat-label{font-size:13px;color:var(--c-ink-2);margin-top:8px;line-height:1.7}
/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{width:36px;height:36px;border-radius:50%;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;margin-bottom:14px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.8}
/* Topics */
.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.topic{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.topic:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(75,46,74,.3)}
.topic img{width:100%;aspect-ratio:16/10;object-fit:cover}
.topic-body{padding:20px 22px 24px}
.topic-body h3{font-size:18px;margin-bottom:8px}
.topic-body p{font-size:13.5px;color:var(--c-ink-2);line-height:1.8}
.topic-count{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-accent-soft);color:#8A3E28;font-size:12px;margin-top:14px}
/* Wall */
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.wall-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.wall-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.wall-card:nth-child(2),.wall-card:nth-child(5){margin-top:26px}
.wall-head{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;flex:0 0 44px;display:grid;place-items:center;font-size:16px;font-weight:700;color:#fff;background:var(--c-primary)}
.avatar--a{background:#4B2E4A}
.avatar--b{background:#4F8A7B}
.avatar--c{background:#C85F3F}
.avatar--d{background:#6C5C7A}
.avatar--e{background:#3E6B60}
.avatar--f{background:#8A5A44}
.wall-head strong{display:block;font-size:15px;line-height:1.3}
.wall-head span{font-size:12px;color:var(--c-ink-2)}
.wall-card p{font-size:14px;color:var(--c-ink-2);line-height:1.85;margin:14px 0 16px}
.wall-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
/* News */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.news-item{display:flex;gap:16px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(75,46,74,.3)}
.news-thumb{flex:0 0 160px;width:160px;height:104px;border-radius:var(--r-img);overflow:hidden;background:var(--c-surface-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column}
.news-body h3{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--c-ink)}
.news-item:hover h3{color:var(--c-primary)}
.news-body p{font-size:13.5px;color:var(--c-ink-2);line-height:1.7;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:8px;font-size:12px;color:var(--c-ink-2)}
.news-more{display:flex;justify-content:center;margin-top:34px}
.empty-state{grid-column:1/-1;display:grid;place-items:center;gap:10px;padding:56px 24px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);color:var(--c-ink-2);font-size:14.5px;text-align:center}
.empty-state span{font-size:26px;color:var(--c-accent)}
/* Tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--c-line);font-size:14px;color:var(--c-ink-2);transition:all .18s ease}
.tag:hover{background:var(--c-accent-soft);color:var(--c-primary);border-color:var(--c-accent-soft);transform:translateY(-1px)}
/* Safety */
.safety-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start}
.safety-grid p + p{margin-top:14px}
.check-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:10px 24px;box-shadow:var(--sh-1)}
.check-list li{display:flex;gap:12px;padding:16px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;color:var(--c-ink-2);line-height:1.8}
.check-list li:last-child{border-bottom:0}
.check-list li::before{content:"✓";flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:rgba(79,138,123,.14);color:var(--c-third);display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:3px}
/* Rules */
.rules-grid{display:grid;grid-template-columns:64px 1fr auto;gap:36px;align-items:start}
.vertical-tag{writing-mode:vertical-rl;letter-spacing:.35em;font-size:13px;color:var(--c-accent);border:1px solid var(--c-accent-soft);border-radius:999px;padding:18px 8px;text-align:center;background:#fff}
.rules-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 32px;counter-reset:rule}
.rules-list li{counter-increment:rule;position:relative;padding-left:34px;font-size:14.5px;color:var(--c-ink-2);line-height:1.85;padding-bottom:12px;border-bottom:1px solid var(--c-line)}
.rules-list li::before{content:counter(rule,decimal-leading-zero);position:absolute;left:0;top:2px;font-size:12px;font-weight:700;color:var(--c-primary);letter-spacing:.04em}
/* Team */
.team{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.team-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;text-align:center;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.team-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.team-card .avatar{width:60px;height:60px;flex:0 0 60px;font-size:20px;margin:0 auto 14px}
.team-card h3{font-size:16px}
.team-card .role{font-size:12.5px;color:var(--c-third);margin-top:4px}
.team-card p{font-size:13.5px;color:var(--c-ink-2);line-height:1.8;margin-top:10px}
/* Partners */
.partners{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner{display:grid;place-items:center;height:88px;border:1px dashed var(--c-line);border-radius:12px;background:#fff;color:#8C8089;font-size:14px;letter-spacing:.02em;transition:all .2s ease;text-align:center;padding:0 12px}
.partner:hover{color:var(--c-primary);border-style:solid;border-color:rgba(75,46,74,.35);background:#FBF5F0;transform:translateY(-2px)}
.partner-note{font-size:13px;color:var(--c-ink-2);margin-top:18px}
/* FAQ */
.faq-list{max-width:900px}
.faq-item{border:1px solid var(--c-line);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
.faq-item:hover{border-color:rgba(75,46,74,.28);box-shadow:var(--sh-1)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 22px;cursor:pointer;font-size:16px;font-weight:500;list-style:none;color:var(--c-ink);transition:color .18s ease,background .18s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;line-height:1;color:var(--c-accent);transition:transform .22s ease;flex:0 0 auto}
.faq-item[open] summary{color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);background:#FDF8F4}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px 25px;font-size:14.5px;color:var(--c-ink-2);line-height:1.9}
/* Guarantee strip */
.guarantee{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.g-item{display:flex;align-items:center;gap:14px;padding:18px 20px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.05)}
.g-icon{width:38px;height:38px;flex:0 0 38px;border-radius:10px;border:1.5px solid var(--c-accent);color:var(--c-accent);display:grid;place-items:center}
.g-icon svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.g-item strong{display:block;font-size:15px;color:#fff;line-height:1.4}
.g-item span{font-size:12.5px;color:rgba(255,255,255,.66)}
/* Join */
.join-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start}
.join-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.join-points span{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;border:1px solid rgba(255,255,255,.25);font-size:13px;color:rgba(255,255,255,.82)}
.join-form{background:#fff;border-radius:16px;padding:28px;box-shadow:0 26px 60px -34px rgba(0,0,0,.7)}
.join-form h3{font-size:18px;color:var(--c-ink);margin-bottom:6px}
.join-form .form-sub{font-size:13px;color:var(--c-ink-2);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--c-ink-2);margin-bottom:6px}
.field input,.field textarea{width:100%;border:1px solid var(--c-line);border-radius:8px;padding:11px 14px;font-size:15px;font-family:inherit;color:var(--c-ink);background:#fff;transition:border-color .18s ease,box-shadow .18s ease}
.field input{height:44px}
.field textarea{min-height:100px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(75,46,74,.12)}
.form-tip{margin-top:12px;font-size:13px;color:var(--c-third);min-height:20px}
/* Footer */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.76);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.66);margin-top:16px;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:500}
.footer-col a,.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:5px 0;transition:color .18s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}
.to-top{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:999px;border:1px solid rgba(255,255,255,.28);color:#fff;font-size:13px;background:transparent;cursor:pointer;transition:all .18s ease}
.to-top:hover{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
/* Responsive */
@media (max-width:1200px){
  .hero-main h1{font-size:34px}
  .hero-main{padding:38px 32px}
}
@media (max-width:992px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr}
  .hero-side{grid-template-columns:1fr 1fr}
  .hero-side .side-card:nth-child(2){margin-left:0}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .m-card.wide{grid-column:span 2}
  .compare{grid-template-columns:1fr 1fr}
  .compare-card{border-bottom:1px solid var(--c-line)}
  .compare-card:nth-child(2n){border-right:0}
  .compare-card:nth-last-child(-n+2){border-bottom:0}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .topics{grid-template-columns:1fr 1fr}
  .wall{grid-template-columns:1fr 1fr}
  .wall-card:nth-child(2),.wall-card:nth-child(5){margin-top:0}
  .news-grid{grid-template-columns:1fr}
  .safety-grid,.join-grid{grid-template-columns:1fr;gap:34px}
  .rules-grid{grid-template-columns:48px 1fr;gap:24px}
  .rules-list{grid-template-columns:1fr}
  .team{grid-template-columns:1fr 1fr}
  .partners{grid-template-columns:repeat(2,1fr)}
  .guarantee{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .search{display:none}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .container{padding:0 16px}
  .chip-inner{padding-left:16px;padding-right:16px}
  .brand-inner{min-height:64px;gap:14px}
  .logo-text strong{font-size:16px}
  .logo-text small{font-size:11px}
  .hero{padding:34px 0 52px}
  .hero-main{padding:30px 22px;border-radius:16px}
  .hero-main h1{font-size:28px;line-height:1.35}
  .hero-lead{font-size:14.5px}
  .hero-stats{gap:18px}
  .hero-stats strong{font-size:18px}
  .hero-side{grid-template-columns:1fr}
  .sec-title{font-size:22px}
  .sec-head{margin-bottom:28px}
  .matrix{grid-template-columns:1fr;gap:16px}
  .m-card.wide{grid-column:span 1}
  .compare{grid-template-columns:1fr}
  .compare-card{border-right:0;border-bottom:1px solid var(--c-line)}
  .compare-card:nth-last-child(-n+2){border-bottom:1px solid var(--c-line)}
  .compare-card:last-child{border-bottom:0}
  .steps{grid-template-columns:1fr;gap:14px}
  .step{position:relative;padding-left:66px}
  .step-num{position:absolute;left:20px;top:24px;margin:0}
  .step + .step::before{content:"";position:absolute;left:37px;top:-14px;height:14px;width:2px;background:var(--c-line)}
  .topics{grid-template-columns:1fr}
  .wall{grid-template-columns:1fr}
  .news-item{flex-direction:column;gap:12px}
  .news-thumb{width:100%;height:170px;flex:none}
  .rules-grid{grid-template-columns:1fr}
  .vertical-tag{writing-mode:horizontal-tb;letter-spacing:.2em;padding:8px 16px;display:inline-block;border-radius:999px}
  .team{grid-template-columns:1fr}
  .partners{grid-template-columns:1fr 1fr}
  .guarantee{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .btn{width:100%}
  .hero-actions .btn,.join-grid .btn{width:100%}
  .search{display:none}
}
@media (max-width:560px){
  .stats{grid-template-columns:1fr 1fr;gap:20px}
  .stat-num{font-size:28px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .faq-item summary{font-size:15px;padding:16px 18px}
  .join-form{padding:22px}
  .partners{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --c-primary:#4B2E4A;
  --c-primary-deep:#33203A;
  --c-accent:#E0714F;
  --c-accent-dark:#C85F3F;
  --c-accent-soft:#F6D9CE;
  --c-third:#4F8A7B;
  --c-bg:#FAF6F1;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EBE3;
  --c-ink:#221A24;
  --c-ink-2:#6B5F6A;
  --c-line:#E4DAD1;
  --r-card:14px;
  --r-btn:8px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(34,26,36,.06);
  --sh-2:0 10px 26px -14px rgba(34,26,36,.28);
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:130px}
body{margin:0;font-family:var(--font-body);font-size:16px;line-height:1.8;color:var(--c-ink);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-accent)}
button{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--white{background:var(--c-surface)}
.section--alt{background:var(--c-surface-2)}
.section--dark{background:var(--c-primary-deep);color:#fff}
.section--dark .sec-title{color:#fff}
.section--dark .sec-desc{color:rgba(255,255,255,.76)}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--c-accent)}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block}
.sec-title{font-size:30px;line-height:1.35;margin:12px 0 14px;letter-spacing:.01em;font-weight:700}
.sec-desc{font-size:15px;color:var(--c-ink-2);line-height:1.85;max-width:760px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:15px;font-weight:500;cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;background:none;line-height:1}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:#F3E9F2;color:var(--c-primary)}
.btn-ghost-light{border-color:rgba(255,255,255,.62);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:500;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;background:none;border:0;padding:0;cursor:pointer}
.btn-link:hover{color:var(--c-accent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1;white-space:nowrap}
.badge-soft{background:var(--c-accent-soft);color:#8A3E28}
.badge-line{border:1px solid rgba(75,46,74,.35);color:var(--c-primary);background:transparent}
.badge-green{background:rgba(79,138,123,.14);color:#2F6455}
.badge-plain{background:var(--c-surface-2);color:var(--c-ink-2)}
/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 8px 22px -16px rgba(34,26,36,.55)}
.brand-bar{background:#fff}
.brand-inner{display:flex;align-items:center;gap:22px;min-height:74px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{width:40px;height:40px;border-radius:11px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;letter-spacing:.02em}
.logo-text strong{display:block;font-size:18px;line-height:1.25;color:var(--c-primary);font-weight:700}
.logo-text small{display:block;font-size:12px;color:var(--c-ink-2);line-height:1.5}
.search{flex:1 1 auto;max-width:400px;margin-left:auto;display:flex;align-items:center;gap:6px;background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:999px;padding:4px 4px 4px 16px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(75,46,74,.12);background:#fff}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:none;height:34px;font-size:14px;color:var(--c-ink)}
.search input::placeholder{color:#9A8E96}
.search button{height:34px;padding:0 16px;border-radius:999px;border:0;background:var(--c-primary);color:#fff;font-size:13px;cursor:pointer;transition:background .18s ease}
.search button:hover{background:var(--c-accent)}
.chip-nav{background:#fff;border-top:1px solid var(--c-line)}
.chip-inner{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none;-ms-overflow-style:none}
.chip-inner::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:14px;background:transparent;transition:all .18s ease;white-space:nowrap}
.chip:hover{background:var(--c-accent-soft);color:var(--c-primary);border-color:var(--c-accent-soft)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.chip.is-active:hover{background:var(--c-primary-deep);color:#fff}
/* 文章头部 */
.article-hero{padding:38px 0 34px;background:linear-gradient(180deg,#F5EEE7 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);margin-bottom:18px}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb span.sep{color:#C4B7AE}
.breadcrumb .current{color:var(--c-primary);font-weight:500}
.hero-badges{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px}
.hero-badges .dot{width:4px;height:4px;border-radius:50%;background:#C4B7AE;display:inline-block}
.hero-badges .meta-text{font-size:13px;color:var(--c-ink-2)}
.article-hero h1{font-size:38px;line-height:1.38;font-weight:700;letter-spacing:.005em;max-width:960px;color:var(--c-ink)}
.article-lead{margin-top:16px;font-size:15.5px;line-height:1.9;color:var(--c-ink-2);max-width:820px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
/* 文章头信息条 */
.meta-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.meta-inner{display:flex;flex-wrap:wrap;align-items:center;gap:16px 26px;padding:18px 0}
.author-chip{display:flex;align-items:center;gap:10px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;flex:0 0 auto;overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.author-chip b{display:block;font-size:14px;color:var(--c-ink);font-weight:500;line-height:1.4}
.author-chip small{display:block;font-size:12.5px;color:var(--c-ink-2);line-height:1.4}
.meta-facts{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13.5px;color:var(--c-ink-2)}
.meta-facts b{color:var(--c-ink);font-weight:500}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-left:auto}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--c-surface-2);color:var(--c-ink-2);font-size:12.5px;border:1px solid var(--c-line)}
.share-group{display:flex;align-items:center;gap:8px}
.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);display:grid;place-items:center;cursor:pointer;font-size:12px;transition:all .18s ease}
.icon-btn:hover{color:var(--c-accent);border-color:var(--c-accent);background:#FFF6F2;transform:translateY(-1px)}
.icon-btn:active{transform:translateY(0)}
/* 正文布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 320px;gap:48px;align-items:start;padding:56px 0 88px}
.article-main{min-width:0}
.article-body{max-width:760px;font-size:16px;line-height:1.8;color:var(--c-ink)}
.article-body p{margin:1em 0}
.article-body h2{font-size:28px;line-height:1.35;font-weight:700;margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary)}
.article-body h3{font-size:20px;line-height:1.45;font-weight:700;margin:30px 0 12px;color:var(--c-primary)}
.article-body h4{font-size:17px;line-height:1.5;font-weight:700;margin:24px 0 10px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent)}
.article-body ul,.article-body ol{margin:1em 0;padding-left:24px}
.article-body ul{list-style:none;padding-left:22px}
.article-body ul li{position:relative;margin:.4em 0}
.article-body ul li::before{content:"";position:absolute;left:-16px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.article-body ol{list-style:decimal}
.article-body ol li{margin:.4em 0}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body blockquote{margin:26px 0;padding:18px 24px;background:var(--c-surface-2);border-left:4px solid var(--c-primary);border-radius:0 10px 10px 0;color:#41353F;font-style:normal}
.article-body blockquote p{margin:.4em 0}
.article-body figure{margin:28px 0}
.article-body figure img{border-radius:var(--r-img);width:100%;object-fit:cover}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--c-ink-2);text-align:center;line-height:1.7}
.article-body img{border-radius:var(--r-img)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:38px 0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-surface-2);color:var(--c-primary);font-weight:500}
.article-body strong{font-weight:700;color:var(--c-primary-deep)}
/* 空态 */
.empty-state{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:56px 32px;text-align:center;box-shadow:var(--sh-1)}
.empty-state h2{font-size:22px;color:var(--c-primary);margin-bottom:12px}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:22px}
/* 侧栏 */
.article-side{min-width:0;position:sticky;top:130px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);margin-bottom:20px}
.side-card h3{font-size:16px;font-weight:700;color:var(--c-primary);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--c-accent);display:inline-block}
.hot-list{list-style:none;margin:0;padding:0}
.hot-list li{display:flex;gap:10px;padding:11px 0;border-bottom:1px dashed var(--c-line);font-size:14px;line-height:1.65}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list li:first-child{padding-top:0}
.hot-list .num{flex:0 0 20px;height:20px;border-radius:5px;background:var(--c-surface-2);color:var(--c-ink-2);font-size:12px;display:grid;place-items:center;font-weight:700;margin-top:2px}
.hot-list li:nth-child(1) .num,.hot-list li:nth-child(2) .num,.hot-list li:nth-child(3) .num{background:var(--c-accent-soft);color:#8A3E28}
.hot-list a{color:var(--c-ink);display:block}
.hot-list a:hover{color:var(--c-accent)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--c-surface-2);border:1px solid var(--c-line);font-size:12.5px;color:var(--c-ink-2)}
.side-tags a:hover{background:var(--c-accent-soft);color:#8A3E28;border-color:var(--c-accent-soft)}
.side-note{background:var(--c-primary-deep);color:#fff;border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.side-note h3{color:#fff;font-size:16px;font-weight:700;margin-bottom:10px}
.side-note p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.78);margin-bottom:14px}
.side-note .btn{width:100%}
/* 互动条 */
.interact-bar{display:flex;flex-wrap:wrap;align-items:center;gap:16px 24px;background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px 22px;margin-top:44px}
.interact-bar .tag-row{margin-left:0}
.helpful{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-left:auto;font-size:14px;color:var(--c-ink-2)}
.helpful .is-voted{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.report-link{font-size:13px;color:var(--c-ink-2);text-decoration:underline;text-underline-offset:3px}
.report-link:hover{color:var(--c-accent)}
/* 版主卡 */
.editor-card{display:flex;align-items:flex-start;gap:18px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;margin-top:28px;box-shadow:var(--sh-1)}
.editor-card .avatar{width:56px;height:56px;font-size:18px;background:var(--c-third)}
.editor-card b{display:block;font-size:16px;color:var(--c-ink);font-weight:700}
.editor-card small{display:block;font-size:12.5px;color:var(--c-ink-2);margin-top:2px}
.editor-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin-top:8px}
.editor-card .btn{flex:0 0 auto;align-self:center;margin-left:auto}
/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}
.rel-card{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(75,46,74,.3)}
.rel-thumb{position:relative;aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 20px}
.rel-body h3{font-size:16px;line-height:1.55;font-weight:700;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body .rel-meta{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:12.5px;color:var(--c-ink-2)}
/* 上/下篇 */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}
.pager a{display:flex;align-items:center;gap:14px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-1);transition:all .2s ease}
.pager a:hover{border-color:rgba(75,46,74,.35);box-shadow:var(--sh-2);transform:translateY(-2px)}
.pager .pager-label{display:block;font-size:12.5px;color:var(--c-ink-2);margin-bottom:4px}
.pager .pager-title{display:block;font-size:15px;color:var(--c-ink);font-weight:500;line-height:1.6}
.pager .arrow{flex:0 0 auto;width:34px;height:34px;border-radius:50%;background:var(--c-surface-2);color:var(--c-primary);display:grid;place-items:center;font-size:14px}
.pager a:hover .arrow{background:var(--c-accent-soft);color:var(--c-accent-dark)}
.pager .next{margin-left:auto}
/* 收尾 CTA */
.cta-strip{margin-top:34px;background:var(--c-primary-deep);border-radius:var(--r-card);padding:34px 36px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;color:#fff}
.cta-strip h3{font-size:21px;font-weight:700;color:#fff}
.cta-strip p{font-size:14px;color:rgba(255,255,255,.76);margin-top:6px;line-height:1.8}
.cta-strip .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-left:auto}
.back-row{margin-top:22px;display:flex;flex-wrap:wrap;gap:16px;align-items:center}
/* 页脚 */
.site-footer{background:var(--c-primary-deep);color:#fff;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.6)}
.footer-brand .logo-mark{background:var(--c-accent)}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.72);max-width:420px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff}
.footer-col a,.footer-col span{display:block;font-size:13.5px;color:rgba(255,255,255,.72);padding:5px 0;line-height:1.7}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.62)}
.to-top{border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;height:36px;padding:0 16px;border-radius:999px;font-size:13px;cursor:pointer;transition:all .18s ease}
.to-top:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6)}
/* 响应式 */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:32px;padding:44px 0 64px}
  .article-side{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start}
  .article-side .side-card,.article-side .side-note{margin-bottom:0}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .brand-inner{flex-wrap:wrap;gap:12px;min-height:auto;padding:12px 0}
  .search{order:3;flex:1 1 100%;max-width:none;margin-left:0}
  .logo-text strong{font-size:16px}
  .article-hero{padding:26px 0 26px}
  .article-hero h1{font-size:27px;line-height:1.45}
  .article-lead{font-size:14.5px;-webkit-line-clamp:4}
  .meta-inner{padding:14px 0;gap:12px}
  .tag-row{margin-left:0;flex:1 1 100%}
  .article-body{font-size:15.5px}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:18px}
  .article-side{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .cta-strip{padding:26px 22px}
  .cta-strip .cta-actions{margin-left:0;width:100%}
  .cta-strip .btn{flex:1 1 auto}
  .interact-bar{padding:16px 16px}
  .helpful{margin-left:0;width:100%}
  .sec-title{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
}
@media (max-width:560px){
  .article-hero h1{font-size:24px}
  .rel-body{padding:15px 16px 17px}
  .editor-card{flex-wrap:wrap}
  .editor-card .btn{margin-left:0}
  .side-card{padding:18px}
}

/* roulang page: category1 */
:root{
  --c-primary:#4B2E4A;
  --c-primary-deep:#33203A;
  --c-accent:#E0714F;
  --c-accent-dark:#C85F3F;
  --c-accent-soft:#F6D9CE;
  --c-third:#4F8A7B;
  --c-bg:#FAF6F1;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EBE3;
  --c-ink:#221A24;
  --c-ink-2:#6B5F6A;
  --c-line:#E4DAD1;
  --r-card:14px;
  --r-btn:8px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(34,26,36,.06);
  --sh-2:0 10px 26px -14px rgba(34,26,36,.28);
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --stick-top:130px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px}
body{margin:0;font-family:var(--font-body);font-size:16px;line-height:1.8;color:var(--c-ink);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-accent)}
button{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--c-accent-soft);color:var(--c-primary-deep)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--white{background:var(--c-surface)}
.section--alt{background:var(--c-surface-2)}
.section--dark{background:var(--c-primary-deep);color:#fff}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--c-accent)}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block}
.sec-title{font-size:30px;line-height:1.35;margin:12px 0 12px;letter-spacing:.01em}
.sec-desc{font-size:15px;line-height:1.9;color:var(--c-ink-2);max-width:680px}
.section--dark .sec-title{color:#fff}
.section--dark .sec-desc{color:rgba(255,255,255,.76)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:15px;font-weight:500;cursor:pointer;line-height:1;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:#F3E9F2;color:var(--c-primary)}
.btn-ghost-light{border-color:rgba(255,255,255,.62);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:500;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.btn-link:hover{color:var(--c-accent)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1;white-space:nowrap}
.badge-soft{background:var(--c-accent-soft);color:#8A3E28}
.badge-line{border:1px solid rgba(75,46,74,.35);color:var(--c-primary);background:transparent}
.badge-green{background:rgba(79,138,123,.14);color:#2F6455}
.badge-plain{background:var(--c-surface-2);color:var(--c-ink-2)}
/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 8px 22px -16px rgba(34,26,36,.55)}
.brand-inner{display:flex;align-items:center;gap:22px;min-height:74px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{width:40px;height:40px;border-radius:11px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700}
.logo-text strong{display:block;font-size:18px;line-height:1.25;color:var(--c-primary);font-weight:700}
.logo-text small{display:block;font-size:12px;color:var(--c-ink-2);line-height:1.5}
.search{flex:1 1 auto;max-width:400px;margin-left:auto;display:flex;align-items:center;gap:6px;background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:999px;padding:4px 4px 4px 16px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(75,46,74,.12);background:#fff}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:none;height:34px;font-size:14px;color:var(--c-ink)}
.search input::placeholder{color:#9A8E96}
.search button{height:34px;padding:0 16px;border-radius:999px;border:0;background:var(--c-primary);color:#fff;font-size:13px;cursor:pointer;transition:background .18s ease}
.search button:hover{background:var(--c-accent)}
.chip-nav{background:#fff;border-top:1px solid var(--c-line);position:relative}
.chip-inner{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none;-ms-overflow-style:none}
.chip-inner::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:14px;background:transparent;transition:background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.chip:hover{background:var(--c-accent-soft);color:var(--c-primary);border-color:var(--c-accent-soft)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.chip.is-active:hover{background:var(--c-primary-deep);color:#fff}
/* 分类页头 */
.cat-head{background:linear-gradient(180deg,#F5EEE7 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-line);padding:32px 0 44px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-accent)}
.crumb-sep{color:#B9ACB5}
.cat-head-grid{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:end}
.cat-head h1{font-size:36px;line-height:1.32;letter-spacing:.005em}
.cat-head h1 em{font-style:normal;color:var(--c-accent)}
.cat-lead{font-size:15.5px;line-height:1.9;color:var(--c-ink-2);margin-top:14px;max-width:700px}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.cat-stat-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:16px 20px;box-shadow:var(--sh-1)}
.cat-stat-card h2{font-size:13px;letter-spacing:.08em;color:var(--c-ink-2);font-weight:500;margin-bottom:6px}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:13.5px;color:var(--c-ink-2)}
.stat-row:last-child{border-bottom:0;padding-bottom:0}
.stat-row b{font-size:17px;color:var(--c-primary);font-weight:700;line-height:1.2}
/* 筛选条 */
.filter-bar{position:sticky;top:var(--stick-top);z-index:60;background:rgba(250,246,241,.96);border-bottom:1px solid var(--c-line);padding:12px 0;backdrop-filter:blur(6px)}
.filter-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.filter-chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:2px 0}
.filter-chips::-webkit-scrollbar{display:none}
.filter-chip{flex:0 0 auto;height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);font-size:14px;cursor:pointer;transition:all .18s ease;white-space:nowrap}
.filter-chip:hover{border-color:var(--c-accent);color:var(--c-accent)}
.filter-chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.filter-sort{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink-2);flex:0 0 auto}
.filter-sort select{height:36px;border-radius:999px;border:1px solid var(--c-line);background:#fff;padding:0 14px;font-size:14px;color:var(--c-ink);cursor:pointer;transition:border-color .18s ease,box-shadow .18s ease}
.filter-sort select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(75,46,74,.12)}
/* 列表 */
.post-list{display:grid;gap:16px}
.post-item{display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:start;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.post-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(75,46,74,.3)}
.post-thumb{display:block;overflow:hidden;border-radius:var(--r-img);background:var(--c-surface-2)}
.post-thumb img{width:100%;height:125px;object-fit:cover;border-radius:var(--r-img);transition:transform .35s ease}
.post-item:hover .post-thumb img{transform:scale(1.04)}
.post-body{min-width:0;padding:2px 4px 2px 0}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--c-ink-2);margin-bottom:8px}
.post-title{font-size:19px;line-height:1.5;font-weight:700}
.post-title a{color:var(--c-ink)}
.post-title a:hover{color:var(--c-accent)}
.post-excerpt{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-more{display:inline-block;margin-top:10px;font-size:13.5px;font-weight:500;color:var(--c-accent)}
.list-more{display:flex;justify-content:center;margin-top:32px}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:10px;padding:56px 24px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);color:var(--c-ink-2);text-align:center}
.empty-icon{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:var(--c-surface-2);color:var(--c-accent);font-size:20px}
/* 分类说明 */
.guide-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:40px;align-items:start}
.guide-text p{font-size:15.5px;line-height:1.95;color:var(--c-ink-2);margin-bottom:1em}
.guide-text p:last-child{margin-bottom:0}
.guide-note{margin-top:26px;background:var(--c-accent-soft);border-radius:var(--r-card);padding:20px 22px;border-left:4px solid var(--c-accent)}
.guide-note h3{font-size:16px;color:#8A3E28;margin-bottom:10px}
.guide-note li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.85;color:#7A4230;margin-bottom:6px}
.guide-note li:last-child{margin-bottom:0}
.guide-note li::before{content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--c-accent)}
.guide-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:#fff;box-shadow:var(--sh-1)}
.guide-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.guide-figure figcaption{padding:12px 16px;font-size:13px;color:var(--c-ink-2);line-height:1.7;border-top:1px solid var(--c-line)}
/* 热门精选 */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pick-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;display:flex;flex-direction:column;gap:12px;height:100%}
.pick-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(75,46,74,.3)}
.pick-index{font-size:26px;font-weight:700;color:var(--c-accent-soft);line-height:1}
.pick-card h3{font-size:17px;line-height:1.55;font-weight:700}
.pick-card h3 a{color:var(--c-ink)}
.pick-card h3 a:hover{color:var(--c-accent)}
.pick-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--c-ink-2);margin-top:auto}
/* 软件速查 */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.app-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.app-card:hover{transform:translateY(-2px);border-color:rgba(79,138,123,.5);box-shadow:var(--sh-2)}
.app-card h3{font-size:16px;color:var(--c-primary);margin-bottom:8px}
.app-card p{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin-bottom:14px}
.app-score{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px dashed var(--c-line);padding-top:12px;font-size:13px;color:var(--c-ink-2)}
.stars{color:var(--c-accent);letter-spacing:2px;font-size:13px}
/* FAQ */
.faq-list{max-width:900px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:0 22px;margin-bottom:12px;box-shadow:var(--sh-1);transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:rgba(75,46,74,.3)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-size:16px;font-weight:500;color:var(--c-ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--c-surface-2);color:var(--c-primary);display:grid;place-items:center;font-size:16px;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease}
.faq-item[open]{border-left:3px solid var(--c-primary)}
.faq-item[open] summary::after{content:"−";background:var(--c-primary);color:#fff}
.faq-item p{font-size:14.5px;line-height:1.9;color:var(--c-ink-2);padding:0 0 20px;max-width:760px}
/* 分类入口 */
.chan-box{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.chan-list{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 20px}
.chan-pill{display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface-2);color:var(--c-ink-2);font-size:14px;transition:all .18s ease}
.chan-pill:hover{background:var(--c-accent-soft);border-color:var(--c-accent-soft);color:#8A3E28;transform:translateY(-1px)}
.chan-pill.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.chan-pill.is-current:hover{background:var(--c-primary-deep);color:#fff}
.chan-note{font-size:13.5px;color:var(--c-ink-2)}
/* CTA */
.cta-band{background:var(--c-primary-deep);color:#fff;padding:48px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:26px;line-height:1.4;margin-bottom:10px}
.cta-inner p{font-size:14.5px;color:rgba(255,255,255,.76);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
/* Footer */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.78);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.6)}
.footer-brand p{font-size:14px;line-height:1.9;margin-top:16px;color:rgba(255,255,255,.7)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:10px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}
.to-top{height:36px;padding:0 18px;border-radius:999px;border:1px solid rgba(255,255,255,.32);background:transparent;color:#fff;font-size:13px;cursor:pointer;transition:all .18s ease}
.to-top:hover{background:rgba(255,255,255,.14);border-color:var(--c-accent);color:#fff}
@media (max-width:1200px){
  .cat-head h1{font-size:32px}
  .app-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:992px){
  .section{padding:72px 0}
  .cat-head-grid{grid-template-columns:1fr;gap:24px;align-items:start}
  .cat-stat-card{max-width:420px}
  .guide-grid{grid-template-columns:1fr;gap:28px}
  .pick-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  :root{--stick-top:118px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .sec-title{font-size:22px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .brand-inner{min-height:64px;gap:12px}
  .search{display:none}
  .logo-text strong{font-size:16px}
  .logo-text small{font-size:11px}
  .chip-inner{padding-left:16px;padding-right:16px}
  .cat-head{padding:24px 0 32px}
  .cat-head h1{font-size:26px}
  .post-item{grid-template-columns:1fr;gap:14px}
  .post-thumb img{height:180px}
  .post-title{font-size:17px}
  .pick-grid{grid-template-columns:1fr}
  .app-grid{grid-template-columns:1fr}
  .chan-box{padding:22px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px}
  .cta-inner h2{font-size:22px}
  :root{--stick-top:112px}
}
@media (max-width:560px){
  .filter-inner{gap:10px}
  .filter-sort{width:100%;justify-content:space-between}
  .filter-sort select{flex:1}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
  .cat-head h1{font-size:23px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .hero-actions .btn{width:auto}
}