/* roulang page: index */
:root{
  --brand-900:#0B1F19;
  --brand-700:#123B2E;
  --brand-500:#23745A;
  --accent-400:#C9F14D;
  --accent-300:#E2FA9B;
  --amber-500:#E9A23B;
  --paper-50:#FAF8F3;
  --paper-100:#F1EDE3;
  --line:#E2DCCF;
  --ink-900:#0B1F19;
  --ink-700:#33463F;
  --ink-500:#66766F;
  --ink-300:#9AA6A0;
  --success:#2E9E6B;
  --warn:#E2A03F;
  --danger:#C8483C;
  --r-sm:8px;
  --r-md:16px;
  --r-img:12px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(11,31,25,.05);
  --shadow-2:0 18px 40px -24px rgba(11,31,25,.35);
  --shadow-3:0 24px 56px -28px rgba(11,31,25,.45);
  --ease:cubic-bezier(.22,.8,.28,1);
  --fast:140ms;
  --base:240ms;
  --slow:420ms;
  --font-cn:"Noto Sans SC","Source Han Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Space Grotesk","Inter",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:calc(60px + env(safe-area-inset-bottom));
  background:var(--paper-50);
  color:var(--ink-700);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.25;font-weight:700}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(201,241,77,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1280px){.container{padding:0 32px}}
@media(min-width:1536px){.container{max-width:1280px}}
.num{font-family:var(--font-num);font-weight:600}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,243,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:background var(--base) var(--ease),box-shadow var(--base) var(--ease);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:56px}
@media(min-width:768px){.nav-inner{height:72px}}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink-900);font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--brand-900);display:grid;place-items:center;flex:none}
.brand-mark svg{width:16px;height:16px;display:block}
.brand em{font-style:normal;color:var(--brand-700)}
.brand span.tail{font-weight:500;font-size:14px;color:var(--ink-500)}
.nav-links{display:none;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--ink-700);padding:6px 0;transition:color var(--fast) var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent-400);transform:scaleX(0);transform-origin:left;transition:transform 160ms var(--ease)}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink-900);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-login{display:none;font-size:15px;color:var(--ink-700);border-bottom:1px solid transparent;transition:border-color var(--fast) var(--ease),color var(--fast) var(--ease)}
.nav-login:hover{color:var(--brand-700);border-color:var(--brand-700)}
.icon-btn{width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;display:grid;place-items:center;color:var(--ink-700);cursor:pointer;transition:border-color var(--fast) var(--ease),color var(--fast) var(--ease)}
.icon-btn:hover{border-color:var(--brand-700);color:var(--brand-700)}
@media(min-width:768px){
  .nav-links{display:flex}
  .nav-login{display:inline-block}
  .icon-btn{display:none}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;line-height:1;text-align:center;
  padding:0 22px;height:44px;
  transition:background var(--base) var(--ease),color var(--base) var(--ease),border-color var(--base) var(--ease),transform var(--fast) var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent-400);color:var(--brand-900)}
.btn-primary:hover{background:var(--brand-900);color:var(--accent-400)}
.btn-ghost{border-color:var(--paper-50);color:var(--paper-50);background:transparent}
.btn-ghost:hover{background:var(--paper-50);color:var(--brand-700)}
.btn-dark{background:var(--brand-700);color:var(--paper-50)}
.btn-dark:hover{background:var(--brand-900);color:var(--accent-400)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);transition:color var(--fast) var(--ease)}
.link-more svg{transition:transform var(--fast) var(--ease)}
.link-more:hover{color:var(--brand-900)}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:var(--paper-50);min-height:auto}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;transform:scale(1.06);animation:heroZoom 1200ms var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,31,25,.94) 0%,rgba(11,31,25,.88) 42%,rgba(11,31,25,.62) 100%)}
.hero-inner{position:relative;z-index:2;padding:64px 0 56px;max-width:760px}
@media(min-width:768px){.hero-inner{padding:96px 0 104px;min-height:600px;display:flex;flex-direction:column;justify-content:center}}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.12em;color:var(--accent-400);margin-bottom:20px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent-400);border-radius:2px}
.hero h1{color:var(--paper-50);font-size:32px;line-height:1.2;margin-bottom:18px;letter-spacing:-.01em}
.hero h1 mark{background:none;color:var(--accent-400)}
@media(min-width:768px){.hero h1{font-size:52px}}
@media(min-width:1280px){.hero h1{font-size:60px}}
.hero-sub{font-size:16px;line-height:1.75;color:rgba(250,248,243,.82);max-width:560px;margin-bottom:32px}
@media(min-width:768px){.hero-sub{font-size:18px}}
.hero-actions{display:flex;flex-direction:column;gap:12px}
@media(min-width:520px){.hero-actions{flex-direction:row;flex-wrap:wrap}}
.trust-row{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:32px;font-size:13px;color:rgba(250,248,243,.72)}
.trust-item{display:inline-flex;align-items:center;gap:7px}
.trust-item svg{width:15px;height:15px;flex:none;color:var(--accent-400)}
.hero-art{margin-top:36px;border-radius:var(--r-md);overflow:hidden;border:1px solid rgba(250,248,243,.16)}
@media(min-width:768px){.hero-art{display:none}}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section.alt{background:var(--paper-100)}
.section-head{display:flex;flex-direction:column;gap:12px;margin-bottom:32px}
@media(min-width:768px){.section-head{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}}
.section-head h2{font-size:26px;position:relative;padding-left:16px;letter-spacing:-.01em}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--accent-400)}
@media(min-width:768px){.section-head h2{font-size:36px}}
.section-head p{font-size:14px;color:var(--ink-500);margin:0}
.section-head .head-note{font-size:14px;color:var(--ink-500);max-width:360px}

/* ---------- 对比表 ---------- */
.table-wrap{display:none}
@media(min-width:768px){
  .table-wrap{display:block;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--paper-50)}
}
table.compare{width:100%;border-collapse:collapse;font-size:15px}
table.compare th,table.compare td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--paper-100);font-size:13px;letter-spacing:.06em;color:var(--ink-700);font-weight:600}
table.compare tbody tr:nth-child(even){background:rgba(241,237,227,.5)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare td:first-child{color:var(--ink-900);font-weight:600}
.col-vip{background:var(--paper-100);position:relative;box-shadow:0 -3px 0 0 var(--accent-400) inset}
th.col-vip{padding-top:22px}
.badge-amber{display:inline-flex;align-items:center;gap:5px;background:rgba(233,162,59,.16);color:#8A5A12;border:1px solid rgba(233,162,59,.5);font-size:12px;padding:2px 9px;border-radius:var(--r-pill);margin-left:8px;vertical-align:middle}
.yes,.no{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;font-size:13px;font-weight:700}
.yes{background:rgba(46,158,107,.14);color:var(--success)}
.no{background:rgba(102,118,111,.12);color:var(--ink-500)}
.compare-cards{display:grid;gap:16px}
@media(min-width:768px){.compare-cards{display:none}}
.compare-card{border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper-50);overflow:hidden}
.compare-card header{padding:16px 18px;background:var(--paper-100);display:flex;align-items:center;justify-content:space-between;gap:10px}
.compare-card header h3{font-size:17px}
.compare-card dl{margin:0;padding:6px 18px 16px}
.compare-card .row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.compare-card .row:last-child{border-bottom:0}
.compare-card dt{color:var(--ink-500);flex:none}
.compare-card dd{margin:0;color:var(--ink-900);text-align:right;font-weight:500}
.compare-card.vip{box-shadow:0 -3px 0 0 var(--accent-400) inset}

/* ---------- 等级亮点 ---------- */
.level-layout{display:grid;gap:24px}
@media(min-width:900px){.level-layout{grid-template-columns:64px 1fr;gap:32px}}
.level-axis{display:none}
@media(min-width:900px){
  .level-axis{display:block;position:relative}
  .level-axis .rail{position:absolute;left:50%;top:8px;bottom:8px;width:2px;transform:translateX(-50%);background:linear-gradient(180deg,var(--accent-400),var(--brand-500));border-radius:2px}
  .level-axis .node{position:absolute;left:50%;width:14px;height:14px;border-radius:50%;background:var(--paper-50);border:3px solid var(--brand-500);transform:translateX(-50%)}
  .level-axis .node.n1{top:6px}
  .level-axis .node.n2{top:40%}
  .level-axis .node.n3{bottom:6px;border-color:var(--amber-500)}
}
.level-blocks{display:grid;gap:16px}
@media(min-width:900px){.level-blocks{grid-template-columns:1fr;gap:20px}}
.level-block{position:relative;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper-50);padding:22px 22px 20px;overflow:hidden;transition:transform var(--base) var(--ease),border-color var(--base) var(--ease),box-shadow var(--base) var(--ease)}
.level-block::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-400);transform:scaleY(0);transform-origin:top;transition:transform var(--base) var(--ease)}
.level-block:hover{transform:translateY(-2px);border-color:var(--accent-400);box-shadow:var(--shadow-2)}
.level-block:hover::before{transform:scaleY(1)}
@media(min-width:900px){.level-block.offset{transform:translateY(-24px)}.level-block.offset:hover{transform:translateY(-26px)}}
.level-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.level-name{font-size:20px;font-weight:700;color:var(--ink-900)}
.level-point{font-size:15px;color:var(--ink-500);margin-bottom:16px}
.level-perks{display:grid;gap:8px;margin-bottom:16px}
.level-perks li{font-size:14px;color:var(--ink-700);display:flex;gap:9px;align-items:flex-start}
.level-perks li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);margin-top:9px;flex:none}
.badge{display:inline-flex;align-items:center;font-size:12px;padding:3px 11px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper-100);color:var(--ink-700);line-height:1.6}
.badge-lime{border-color:var(--accent-400);background:rgba(201,241,77,.28);color:#3C5210}
.badge-outline{border-color:var(--brand-500);background:transparent;color:var(--brand-700)}
.badge-amber-o{border-color:var(--amber-500);background:rgba(233,162,59,.14);color:#8A5A12}

/* ---------- CMS 卡片 ---------- */
.card-grid{display:grid;gap:16px}
@media(min-width:900px){
  .card-grid{grid-template-columns:repeat(12,1fr);gap:24px}
  .card-lg{grid-column:span 6}
  .card-sm{grid-column:span 3}
}
.card{border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper-50);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow var(--base) var(--ease),transform var(--base) var(--ease)}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--paper-100);overflow:hidden}
.card-media img{width:100%;height:100%;border-radius:0}
.card-media .badge{position:absolute;left:14px;bottom:14px;background:rgba(250,248,243,.92);backdrop-filter:blur(6px)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-title{font-size:17px;font-weight:600;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.55}
.card-excerpt{font-size:14px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-300);padding-top:10px}
.card:hover .card-title{color:var(--brand-700)}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;gap:32px}
@media(min-width:1024px){.news-layout{grid-template-columns:8fr 4fr;gap:48px;align-items:start}}
.news-item{display:block;padding:22px 0;border-bottom:1px solid var(--line);transition:color var(--base) var(--ease)}
.news-item:first-child{padding-top:0}
.news-row{display:grid;gap:14px}
@media(min-width:768px){.news-row{grid-template-columns:88px 1fr;gap:22px}}
.date-block{font-family:var(--font-num);color:var(--ink-500)}
.date-block .d{display:block;font-size:22px;font-weight:600;color:var(--brand-700);line-height:1.1}
.date-block .m{display:block;font-size:12px;letter-spacing:.06em}
.news-title{font-size:17px;font-weight:600;color:var(--ink-900);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(min-width:768px){.news-title{font-size:18px}}
.news-excerpt{font-size:14px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 10px}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300)}
.news-item:hover .news-title{color:var(--brand-700)}
.news-item:hover .link-more svg{transform:translateX(4px)}
.news-head-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.sidebar{display:grid;gap:24px}
.side-panel{border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper-50);padding:22px}
.side-panel h3{font-size:16px;margin-bottom:14px}
.cat-quick li+li{border-top:1px solid var(--line)}
.cat-quick a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;font-size:14px;color:var(--ink-700);transition:color var(--fast) var(--ease)}
.cat-quick a:hover{color:var(--brand-700)}
.cat-quick .count{font-family:var(--font-num);font-size:13px;color:var(--ink-300)}
.hot-list li{padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.hot-list li:last-child{border-bottom:0}
.hot-list a{color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-list a:hover{color:var(--brand-700)}
.side-cta{background:var(--brand-900);color:var(--paper-50);border:0}
.side-cta h3{color:var(--paper-50)}
.side-cta p{font-size:14px;color:rgba(250,248,243,.72);margin-bottom:18px}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-md);background:var(--paper-50);min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:32px 20px;text-align:center}
.empty-state svg{width:36px;height:36px;color:var(--ink-300)}
.empty-state p{font-size:14px;color:var(--ink-500);margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;cursor:pointer;font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.6}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform var(--base) var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;transition:opacity var(--fast) var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-500);max-width:680px}
.js .faq-a{max-height:0;opacity:0;overflow:hidden;padding-bottom:0;transition:max-height var(--base) var(--ease),opacity var(--base) var(--ease),padding var(--base) var(--ease)}
.js .faq-item.is-open .faq-a{max-height:420px;opacity:1;padding-bottom:22px}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;background:var(--brand-900);color:var(--paper-50);overflow:hidden}
.cta-band .bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.16}
.cta-inner{position:relative;z-index:2;padding:64px 0;display:grid;gap:32px}
@media(min-width:900px){.cta-inner{padding:88px 0;grid-template-columns:1.4fr 1fr;align-items:center;gap:48px}}
.cta-inner h2{color:var(--paper-50);font-size:26px;margin-bottom:14px}
@media(min-width:768px){.cta-inner h2{font-size:34px}}
.cta-sub{font-size:15px;color:rgba(250,248,243,.76);margin-bottom:22px}
.cta-points{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:rgba(250,248,243,.72)}
.cta-points span{display:inline-flex;align-items:center;gap:7px}
.cta-points svg{width:14px;height:14px;color:var(--accent-400)}
.cta-action{display:flex;flex-direction:column;gap:12px}
.cta-note{font-size:13px;color:rgba(250,248,243,.6);text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(250,248,243,.72);padding:56px 0 32px}
@media(min-width:768px){.site-footer{padding:72px 0 32px}}
.footer-grid{display:grid;gap:32px;grid-template-columns:repeat(2,1fr)}
@media(min-width:900px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}}
.footer-brand{grid-column:1/-1}
@media(min-width:900px){.footer-brand{grid-column:auto}}
.footer-brand .brand{color:var(--paper-50);margin-bottom:14px}
.footer-brand .brand span.tail{color:rgba(250,248,243,.6)}
.footer-desc{font-size:14px;line-height:1.8;margin-bottom:16px;max-width:320px}
.footer-col h4{color:var(--paper-50);font-size:14px;letter-spacing:.08em;margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;transition:color var(--fast) var(--ease)}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(250,248,243,.12);display:flex;flex-direction:column;gap:10px;font-size:13px;color:rgba(250,248,243,.55)}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* ---------- 移动底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:var(--paper-50);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  display:grid;grid-template-columns:repeat(5,1fr);
}
@media(min-width:768px){.tabbar{display:none}}
.tab-item{position:relative;height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--ink-500)}
.tab-item svg{width:24px;height:24px;stroke-width:1.6}
.tab-item::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);width:26px;height:2px;background:var(--accent-400);transition:transform var(--base) var(--ease)}
.tab-item.is-active{color:var(--brand-700);font-weight:600}
.tab-item.is-active svg{stroke-width:2.1}
.tab-item.is-active::before{transform:translateX(-50%) scaleX(1)}
.tab-item:focus-visible{outline-offset:-3px}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity var(--slow) var(--ease),transform var(--slow) var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --brand-900:#0B1F19;
  --brand-700:#123B2E;
  --brand-500:#23745A;
  --accent-400:#C9F14D;
  --accent-300:#E2FA9B;
  --amber-500:#E9A23B;
  --paper-50:#FAF8F3;
  --paper-100:#F1EDE3;
  --line:#E2DCCF;
  --ink-900:#0B1F19;
  --ink-700:#33463F;
  --ink-500:#66766F;
  --ink-300:#9AA6A0;
  --success:#2E9E6B;
  --warn:#E2A03F;
  --error:#C8483C;

  --r-xs:8px;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;

  --shadow-1:0 1px 2px rgba(11,31,25,.05);
  --shadow-2:0 18px 40px -24px rgba(11,31,25,.35);
  --shadow-3:0 24px 56px -28px rgba(11,31,25,.45);

  --ease:cubic-bezier(.22,.8,.28,1);
  --fast:140ms;
  --base:240ms;
  --slow:420ms;

  --font-cn:"Noto Sans SC","Source Han Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Space Grotesk","Inter",system-ui,-apple-system,sans-serif;

  --header-h:72px;
  --tabbar-h:60px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--ink-700);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
@media (max-width:767px){
  body{padding-bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom));}
}
@media (min-width:1024px){
  body{font-size:17px;}
}
img{max-width:100%;display:block;border-radius:var(--r-md);object-fit:cover;}
a{color:var(--brand-700);text-decoration:none;transition:color var(--fast) var(--ease);}
a:hover{color:var(--brand-500);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.25;}
p{margin:0;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:3px solid rgba(201,241,77,.55);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container{padding-left:24px;padding-right:24px;}
}
@media (min-width:1280px){
  .container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1536px){
  .container{max-width:1280px;}
}

/* ============ 进度条 ============ */
.read-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:90;
  background:transparent;pointer-events:none;
}
.read-progress span{
  display:block;height:100%;width:0;
  background:var(--accent-400);
  transition:width 90ms linear;
}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,248,243,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--base) var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav-inner{
  height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
@media (min-width:768px){
  .nav-inner{height:var(--header-h);}
}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-num);
  font-size:17px;font-weight:700;letter-spacing:.01em;
  color:var(--ink-900);white-space:nowrap;
}
.brand:hover{color:var(--brand-700);}
.brand em{
  font-style:normal;font-family:var(--font-cn);
  font-weight:600;font-size:13px;color:var(--brand-500);letter-spacing:.02em;
}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--brand-900);
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px;}

.nav-links{display:none;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-login{display:none;}

.icon-btn{
  width:36px;height:36px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--paper-50);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-700);transition:all var(--fast) var(--ease);
}
.icon-btn:hover{border-color:var(--accent-400);background:var(--accent-300);color:var(--brand-900);}

@media (min-width:768px){
  .nav-links{
    display:flex;align-items:center;gap:26px;
  }
  .nav-link{
    position:relative;
    font-size:15px;color:var(--ink-700);
    padding:6px 0;
    transition:color var(--fast) var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:0;bottom:0;
    height:2px;width:0;background:var(--accent-400);
    transition:width 160ms var(--ease);
  }
  .nav-link:hover{color:var(--brand-700);}
  .nav-link:hover::after{width:100%;}
  .nav-link.is-active{color:var(--brand-700);font-weight:600;}
  .nav-link.is-active::after{width:100%;}
  .nav-login{
    display:inline-block;font-size:14px;color:var(--ink-700);
    border-bottom:1px solid transparent;padding-bottom:2px;
    transition:all var(--fast) var(--ease);
  }
  .nav-login:hover{color:var(--brand-700);border-bottom-color:var(--brand-700);}
  .icon-btn{display:none;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  font-weight:600;font-size:15px;line-height:1;
  padding:0 22px;height:44px;
  transition:all var(--base) var(--ease);
  white-space:nowrap;border:1px solid transparent;
}
.btn-sm{height:36px;font-size:14px;padding:0 16px;}
.btn-lg{height:52px;font-size:16px;padding:0 30px;}
.btn-primary{background:var(--accent-400);color:var(--brand-900);}
.btn-primary:hover{background:var(--brand-900);color:var(--accent-400);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:rgba(250,248,243,.45);color:var(--paper-50);background:transparent;}
.btn-ghost:hover{background:var(--paper-50);color:var(--brand-700);border-color:var(--paper-50);}
.btn-outline{border-color:var(--line);color:var(--ink-900);background:var(--paper-50);}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-700);
  padding:0;height:auto;
}
.btn-text svg{transition:transform var(--base) var(--ease);}
.btn-text:hover svg{transform:translateX(4px);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--ink-500);
  padding:26px 0 22px;
}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:var(--ink-300);}
.breadcrumb .current{
  color:var(--ink-900);font-weight:600;
  max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ 文章头部 ============ */
.article-head{max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.12em;font-weight:600;
  color:var(--brand-500);text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent-400);border-radius:2px;}
.article-title{
  font-size:30px;line-height:1.22;
  margin:16px 0 0;
  letter-spacing:-.01em;
}
@media (min-width:768px){
  .article-title{font-size:40px;}
}
@media (min-width:1024px){
  .article-title{font-size:46px;}
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:14px;color:var(--ink-500);
}
.article-meta .dot{width:1px;height:13px;background:var(--line);display:inline-block;}
.article-meta .num{font-family:var(--font-num);font-weight:600;color:var(--ink-700);}

.article-cover{
  margin:28px 0 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--paper-100);
}
.article-cover img{
  width:100%;aspect-ratio:16/9;border-radius:0;
}

/* ============ 布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
  padding:36px 0 64px;
}
@media (min-width:1024px){
  .article-layout{
    grid-template-columns:minmax(0,1fr) 300px;
    gap:48px;
    padding:44px 0 96px;
  }
}
.article-body{min-width:0;}

/* ============ 正文排版 ============ */
.prose{
  max-width:780px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
}
@media (min-width:1024px){
  .prose{font-size:17px;}
}
.prose > * + *{margin-top:1.15em;}
.prose p{margin-bottom:1.15em;}
.prose h2{
  position:relative;
  font-size:22px;line-height:1.4;
  margin-top:40px;margin-bottom:16px;
  padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;
  width:3px;background:var(--accent-400);border-radius:2px;
}
.prose h3{
  font-size:19px;line-height:1.45;
  margin-top:28px;margin-bottom:12px;
}
.prose h4{font-size:17px;margin-top:22px;margin-bottom:10px;}
.prose a{
  color:var(--brand-700);font-weight:500;
  border-bottom:2px solid var(--accent-400);
  transition:color var(--fast) var(--ease);
}
.prose a:hover{color:var(--brand-900);}
.prose img{
  width:100%;height:auto;border-radius:var(--r-md);
  border:1px solid var(--line);
  margin:24px 0;
}
.prose figure{margin:24px 0;}
.prose figcaption{
  font-size:13px;text-align:center;color:var(--ink-300);
  margin-top:10px;
}
.prose blockquote{
  border-left:3px solid var(--brand-700);
  background:var(--paper-100);
  padding:18px 20px;border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-700);
  font-size:16px;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose ul,.prose ol{padding-left:1.4em;margin:16px 0;}
.prose ul{list-style:none;}
.prose ul li{position:relative;padding-left:14px;margin-bottom:8px;}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--accent-400);
}
.prose ol{list-style:decimal;}
.prose ol li{margin-bottom:8px;padding-left:4px;}
.prose ol li::marker{color:var(--brand-500);font-weight:600;font-family:var(--font-num);}
.prose table{
  width:100%;border-collapse:collapse;font-size:15px;
  margin:24px 0;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;
}
.prose thead th{
  background:var(--paper-100);color:var(--ink-900);
  font-weight:600;text-align:left;
}
.prose th,.prose td{
  padding:12px 14px;border-bottom:1px solid var(--line);
  vertical-align:top;
}
.prose tbody tr:last-child td{border-bottom:0;}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.prose code{
  font-family:var(--font-num);font-size:.92em;
  background:var(--paper-100);padding:2px 6px;border-radius:6px;
  border:1px solid var(--line);
}
.prose strong{color:var(--ink-900);font-weight:600;}

/* ============ 标签 ============ */
.tag-row{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;line-height:1;padding:7px 12px;
  border-radius:var(--r-pill);font-weight:600;
}
.badge-soft{background:var(--paper-100);color:var(--ink-700);border:1px solid var(--line);}
.badge-lime{background:var(--accent-300);color:var(--brand-900);}
.badge-outline{border:1px solid var(--brand-700);color:var(--brand-700);background:transparent;}
.badge-amber{
  background:rgba(233,162,59,.14);color:#8a5a10;
  border:1px solid rgba(233,162,59,.4);
}

/* ============ 上一篇 / 下一篇 ============ */
.post-nav{
  display:grid;grid-template-columns:1fr;gap:12px;
  margin-top:36px;
}
@media (min-width:640px){
  .post-nav{grid-template-columns:1fr 1fr;}
}
.post-nav a{
  display:block;
  border:1px solid var(--line);
  background:var(--paper-50);
  border-radius:var(--r-lg);
  padding:18px 20px;
  transition:all var(--base) var(--ease);
}
.post-nav a:hover{
  border-color:var(--accent-400);
  box-shadow:var(--shadow-2);
  transform:translateY(-2px);
}
.post-nav .pn-label{
  display:block;font-size:12px;letter-spacing:.12em;
  color:var(--ink-300);font-weight:600;margin-bottom:6px;
}
.post-nav .pn-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;font-size:15px;font-weight:600;color:var(--ink-900);
}

/* ============ 侧栏 ============ */
.article-side{display:none;}
@media (min-width:1024px){
  .article-side{
    display:block;
    position:sticky;top:calc(var(--header-h) + 24px);
    align-self:start;
  }
}
.side-card{
  border:1px solid var(--line);
  background:var(--paper-50);
  border-radius:var(--r-lg);
  padding:20px;
  margin-bottom:20px;
}
.side-card h2{
  font-size:13px;letter-spacing:.12em;color:var(--ink-500);
  font-weight:700;margin-bottom:14px;
}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:block;
  font-size:14px;line-height:1.6;color:var(--ink-700);
  padding:6px 0 6px 12px;
  border-left:3px solid transparent;
  transition:all var(--fast) var(--ease);
}
.toc-list a:hover{color:var(--brand-700);border-left-color:var(--accent-300);}
.toc-list a.is-current{
  color:var(--brand-900);font-weight:600;
  border-left-color:var(--accent-400);
  background:rgba(201,241,77,.14);
}
.hot-list li{
  border-bottom:1px solid var(--line);
  padding:10px 0;font-size:14px;line-height:1.6;
}
.hot-list li:last-child{border-bottom:0;padding-bottom:0;}
.hot-list a{color:var(--ink-700);display:block;}
.hot-list a:hover{color:var(--brand-700);}
.side-cta{
  background:var(--brand-900);
  border-radius:var(--r-lg);
  padding:22px 20px;
  color:var(--paper-50);
}
.side-cta h2{color:var(--accent-400);font-size:16px;letter-spacing:0;margin-bottom:8px;}
.side-cta p{font-size:13px;line-height:1.7;color:rgba(250,248,243,.72);margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ============ 相关推荐 ============ */
.related-section{
  margin-top:56px;padding-top:40px;
  border-top:1px solid var(--line);
}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:24px;
}
.section-head-row h2{font-size:24px;}
.cms-list{list-style:none;padding:0;margin:0;}
.related-grid{
  display:grid;grid-template-columns:1fr;gap:20px;
}
@media (min-width:640px){
  .related-grid{grid-template-columns:repeat(3,1fr);}
}
.cms-card{
  border:1px solid var(--line);
  background:var(--paper-50);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:all var(--base) var(--ease);
  height:100%;
}
.cms-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.cms-card .cms-thumb{aspect-ratio:16/9;background:var(--paper-100);overflow:hidden;}
.cms-card .cms-thumb img{width:100%;height:100%;border-radius:0;}
.cms-card .cms-body{padding:16px 18px 18px;}
.cms-card .cms-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;font-size:16px;font-weight:600;color:var(--ink-900);
  line-height:1.5;
}
.cms-card .cms-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:12px;font-size:12px;color:var(--ink-300);
}
.cms-card .cms-foot .num{font-family:var(--font-num);}

.empty-state{
  min-height:200px;max-height:320px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;
  border:1px dashed var(--line);
  border-radius:var(--r-lg);
  background:rgba(241,237,227,.4);
  padding:32px 20px;
}
.empty-state svg{width:34px;height:34px;stroke:var(--ink-300);}
.empty-state p{font-size:14px;color:var(--ink-500);}

.back-row{margin-top:36px;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-900);
  border-radius:var(--r-xl);
  padding:40px 28px;
  margin:56px 0 0;
  color:var(--paper-50);
  position:relative;overflow:hidden;
}
@media (min-width:768px){
  .cta-band{padding:56px 48px;}
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(201,241,77,.16) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.5;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;flex-direction:column;gap:24px;
}
@media (min-width:900px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;}
}
.cta-band h2{color:var(--paper-50);font-size:24px;}
@media (min-width:768px){
  .cta-band h2{font-size:28px;}
}
.cta-band .cta-desc{
  color:rgba(250,248,243,.72);font-size:15px;margin-top:10px;max-width:520px;
}
.cta-points{
  display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;
  font-size:13px;color:rgba(250,248,243,.72);
}
.cta-points span{display:inline-flex;align-items:center;gap:6px;}
.cta-points i{
  width:6px;height:6px;border-radius:2px;background:var(--accent-400);display:inline-block;
}
.cta-note{
  font-size:13px;color:rgba(250,248,243,.6);margin-top:10px;text-align:center;
}
@media (min-width:900px){
  .cta-note{text-align:right;}
}
.btn-block{width:100%;}
@media (min-width:480px){
  .btn-block{width:auto;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(250,248,243,.72);
  padding:56px 0 28px;
  margin-top:64px;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
}
@media (min-width:640px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}
.site-footer .brand{color:var(--paper-50);}
.site-footer .brand em{color:var(--accent-400);}
.site-footer .brand:hover{color:var(--accent-400);}
.footer-desc{
  font-size:14px;line-height:1.8;
  color:rgba(250,248,243,.68);
  margin:14px 0 16px;max-width:300px;
}
.footer-col h4{
  color:var(--paper-50);font-size:14px;font-weight:600;
  letter-spacing:.04em;margin-bottom:16px;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;color:rgba(250,248,243,.7);
  transition:color var(--fast) var(--ease);
}
.footer-col a:hover{color:var(--accent-400);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  align-items:center;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(250,248,243,.12);
  font-size:13px;color:rgba(250,248,243,.5);
}

/* ============ 底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:85;
  display:flex;align-items:stretch;
  height:calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--paper-50);
  border-top:1px solid var(--line);
}
@media (min-width:768px){
  .tabbar{display:none;}
}
.tab-item{
  position:relative;flex:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:11px;color:var(--ink-500);
  transition:color var(--fast) var(--ease);
}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:0;height:2px;background:var(--accent-400);
  transition:width var(--base) var(--ease);
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;}
.tab-item.is-active{color:var(--brand-700);font-weight:600;}
.tab-item.is-active::before{width:28px;}
.tab-item.is-active svg{stroke:var(--brand-700);}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:18px;
  bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 16px);
  width:52px;height:52px;border-radius:50%;
  background:var(--brand-900);color:var(--accent-400);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--base) var(--ease);
  z-index:86;
}
@media (min-width:768px){
  .to-top{bottom:32px;width:56px;height:56px;}
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-700);color:var(--accent-400);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity var(--slow) var(--ease),transform var(--slow) var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B1F19;
  --brand-700:#123B2E;
  --brand-500:#23745A;
  --accent-400:#C9F14D;
  --accent-300:#E2FA9B;
  --amber-500:#E9A23B;
  --paper-50:#FAF8F3;
  --paper-100:#F1EDE3;
  --line:#E2DCCF;
  --ink-900:#0B1F19;
  --ink-700:#33463F;
  --ink-500:#66766F;
  --ink-300:#9AA6A0;
  --ok:#2E9E6B;
  --warn:#E2A03F;
  --err:#C8483C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(11,31,25,.05);
  --shadow-2:0 18px 40px -24px rgba(11,31,25,.35);
  --shadow-3:0 24px 56px -28px rgba(11,31,25,.45);
  --ease:cubic-bezier(.22,.8,.28,1);
  --t-fast:140ms;
  --t-base:240ms;
  --t-slow:420ms;
  --font-cn:"Noto Sans SC","Source Han Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Inter",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(60px + env(safe-area-inset-bottom));
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto;object-fit:cover}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(201,241,77,.55);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1280px){.container{padding-left:32px;padding-right:32px;max-width:1200px}}
@media (min-width:1536px){.container{max-width:1280px}}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:80px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.section-tight{padding:40px 0}
@media (min-width:1024px){.section-tight{padding:56px 0}}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:70;
  --hdr-ink:#FAF8F3;
  --hdr-ink-weak:rgba(250,248,243,.74);
  --hdr-line:rgba(250,248,243,.16);
  color:var(--hdr-ink);
  background:transparent;
  transition:background var(--t-base) var(--ease),color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.site-header.is-scrolled{
  --hdr-ink:var(--ink-900);
  --hdr-ink-weak:var(--ink-500);
  --hdr-line:var(--line);
  background:rgba(250,248,243,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px}
@media (min-width:768px){.nav-inner{height:72px}}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.01em;color:var(--hdr-ink)}
.brand em{font-style:normal;font-weight:500;color:var(--hdr-ink-weak)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:var(--brand-900);
  border:1px solid rgba(201,241,77,.45);
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px}
.nav-links{display:none;align-items:center;gap:26px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{position:relative;font-size:15px;color:var(--hdr-ink-weak);transition:color var(--t-fast) var(--ease);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent-400);transition:width 160ms var(--ease);
}
.nav-link:hover::after{width:100%}
.site-header:not(.is-scrolled) .nav-link:hover{color:var(--accent-400)}
.site-header.is-scrolled .nav-link:hover{color:var(--brand-700)}
.nav-link.is-active{color:var(--hdr-ink);font-weight:600}
.nav-link.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-login{display:none;font-size:15px;color:var(--hdr-ink-weak);border-bottom:1px solid transparent;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.nav-login:hover{color:var(--accent-400);border-color:var(--accent-400)}
@media (min-width:768px){.nav-login{display:inline-block}}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-pill);
  border:1px solid var(--hdr-line);color:var(--hdr-ink);
  transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.icon-btn:hover{border-color:var(--accent-400);color:var(--accent-400)}
@media (min-width:768px){.icon-btn{display:none}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:600;letter-spacing:.02em;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-md{height:44px;padding:0 22px;font-size:15px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--accent-400);color:var(--brand-900)}
.btn-primary:hover{background:var(--brand-900);color:var(--accent-400)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(250,248,243,.55);color:#FAF8F3}
.btn-ghost:hover{background:#FAF8F3;color:var(--brand-700);border-color:#FAF8F3}
.btn-outline{border:1px solid var(--line);color:var(--brand-700);background:var(--paper-50)}
.btn-outline:hover{border-color:var(--accent-400);background:var(--accent-300)}
.btn-text{color:var(--brand-700);border-bottom:1px solid transparent;border-radius:4px;padding:2px 0}
.btn-text:hover{border-color:var(--accent-400)}
.btn-text .arrow{transition:transform var(--t-fast) var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);font-size:12px;line-height:1;padding:6px 12px;font-weight:500}
.badge-cat{background:var(--paper-100);color:var(--ink-700)}
.badge-lime{background:rgba(201,241,77,.22);color:#1F4A38;border:1px solid rgba(201,241,77,.6)}
.badge-outline{border:1px solid var(--brand-700);color:var(--brand-700);background:transparent}
.badge-amber{background:rgba(233,162,59,.14);color:#8A5A14;border:1px solid rgba(233,162,59,.55)}
.badge-ok{background:rgba(46,158,107,.12);color:#1F6B49}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;
  padding-top:96px;
  padding-bottom:48px;
  background-color:var(--brand-900);
  background-image:linear-gradient(100deg,rgba(11,31,25,.95) 0%,rgba(11,31,25,.86) 52%,rgba(11,31,25,.66) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#FAF8F3;
  overflow:hidden;
}
@media (min-width:768px){.page-hero{padding-top:132px;padding-bottom:72px}}
@media (min-width:1024px){.page-hero{padding-top:152px;padding-bottom:88px}}
.hero-grid{display:grid;gap:32px;align-items:center}
@media (min-width:960px){.hero-grid{grid-template-columns:1.15fr .85fr;gap:56px}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(250,248,243,.7);margin-bottom:20px}
.crumbs a{color:rgba(250,248,243,.7);transition:color var(--t-fast) var(--ease)}
.crumbs a:hover{color:var(--accent-400)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:#FAF8F3;font-weight:600}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.14em;color:var(--accent-400);text-transform:uppercase;margin-bottom:18px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent-400);display:inline-block}
.page-hero h1{
  font-size:32px;line-height:1.2;font-weight:700;letter-spacing:-.01em;color:#FAF8F3;
}
@media (min-width:768px){.page-hero h1{font-size:44px}}
@media (min-width:1200px){.page-hero h1{font-size:54px}}
.page-hero h1 .hl{color:var(--accent-400)}
.lede{margin-top:18px;font-size:16px;line-height:1.8;color:rgba(250,248,243,.82);max-width:34em}
.hero-actions{display:flex;flex-direction:column;gap:12px;margin-top:30px}
@media (min-width:520px){.hero-actions{flex-direction:row}}
.hero-props{display:flex;flex-wrap:wrap;gap:20px;margin-top:32px;font-size:13px;color:rgba(250,248,243,.72)}
.hero-props li{display:inline-flex;align-items:center;gap:8px}
.hero-props svg{width:16px;height:16px;color:var(--accent-400)}
.hero-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(250,248,243,.16);box-shadow:var(--shadow-2)}
.hero-figure img{width:100%;aspect-ratio:4/3;border-radius:0}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:26px;line-height:1.3;font-weight:700;color:var(--ink-900);position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--accent-400)}
@media (min-width:768px){.section-head h2{font-size:34px}}
@media (min-width:1024px){.section-head h2{font-size:38px}}
.section-head p{font-size:15px;color:var(--ink-500);max-width:30em}
.section-head.center{justify-content:center;text-align:center;flex-direction:column;align-items:center}
.section-head.center h2{padding-left:0}
.section-head.center h2::before{display:none}

/* ---------- 图文交替 ---------- */
.split{display:grid;gap:32px;align-items:center}
@media (min-width:960px){.split{grid-template-columns:1fr 1fr;gap:64px}}
.split + .split{margin-top:56px}
@media (min-width:1024px){.split + .split{margin-top:88px}}
.split-media{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--paper-100)}
.split-media img{width:100%;aspect-ratio:16/10;transition:transform var(--t-slow) var(--ease)}
.split-media:hover img{transform:scale(1.03)}
.split-copy h3{font-size:22px;line-height:1.4;font-weight:700;color:var(--ink-900);margin-bottom:16px}
.split-copy p + p{margin-top:14px}
.split-copy p{color:var(--ink-700)}
.split-stat{display:flex;gap:32px;margin-top:26px;flex-wrap:wrap}
.split-stat div{min-width:96px}
.split-stat strong{display:block;font-family:var(--font-num);font-size:34px;line-height:1.1;color:var(--brand-700);font-weight:600}
.split-stat span{font-size:13px;color:var(--ink-500)}
@media (min-width:960px){
  .split.reverse .split-media{order:2}
  .split.reverse .split-copy{order:1}
}

/* ---------- 要点条 ---------- */
.points{margin-top:48px;border-top:1px solid var(--line)}
@media (min-width:1024px){.points{margin-top:72px}}
.point-item{display:flex;align-items:flex-start;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.point-item .p-icon{
  flex:0 0 auto;width:38px;height:38px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(201,241,77,.2);color:var(--brand-700);
}
.point-item .p-icon svg{width:18px;height:18px}
.point-item strong{display:block;font-size:16px;color:var(--ink-900);font-weight:600}
.point-item p{font-size:14px;color:var(--ink-500);margin-top:2px}

/* ---------- 对照区 ---------- */
.compare-wrap{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--paper-50);box-shadow:var(--shadow-1)}
.compare-head,.compare-row{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr}
.compare-head{background:var(--paper-100);font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink-700)}
.compare-head span{padding:14px 20px}
.compare-head span:last-child{color:#8A5A14;background:rgba(233,162,59,.1)}
.compare-row:nth-child(odd){background:rgba(241,237,227,.5)}
.compare-row span{padding:16px 20px;border-top:1px solid var(--line);font-size:15px;display:flex;align-items:center;gap:8px}
.compare-row span:first-child{font-weight:600;color:var(--ink-900)}
.compare-row span:last-child{background:rgba(241,237,227,.7);color:var(--ink-900)}
.mark{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:var(--r-pill);flex:0 0 auto}
.mark-yes{background:rgba(46,158,107,.16);color:#1F6B49}
.mark-no{background:rgba(102,118,111,.14);color:var(--ink-500)}
.mark svg{width:12px;height:12px}
.compare-note{margin-top:16px;font-size:13px;color:var(--ink-500)}
@media (max-width:767px){
  .compare-wrap{border:0;background:transparent;box-shadow:none}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper-50);margin-bottom:14px;overflow:hidden}
  .compare-row span{border-top:0;border-bottom:1px solid var(--line);justify-content:space-between;padding:12px 16px;font-size:14px}
  .compare-row span:last-child{border-bottom:0}
  .compare-row span::before{content:attr(data-label);color:var(--ink-500);font-size:13px;font-weight:500}
  .compare-row span:first-child{background:var(--paper-100)}
  .compare-row span:first-child::before{content:attr(data-label)}
}

/* ---------- 流程 ---------- */
.steps{border-top:1px solid var(--line);counter-reset:step}
.step{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--line)}
.step-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:17px;font-weight:600;
  background:var(--brand-900);color:var(--accent-400);
}
.step h3{font-size:18px;font-weight:600;color:var(--ink-900);margin-bottom:6px}
.step p{font-size:15px;color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:20px 0;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color var(--t-fast) var(--ease);
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;margin-top:4px;transition:transform var(--t-base) var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 0 22px;max-height:none;opacity:1}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-500);max-width:60em}
.js-faq .faq-a{max-height:0;overflow:hidden;opacity:0;padding-bottom:0;transition:max-height var(--t-base) var(--ease),opacity var(--t-base) var(--ease),padding-bottom var(--t-base) var(--ease)}
.js-faq .faq-item.is-open .faq-a{max-height:520px;opacity:1;padding-bottom:22px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background-color:var(--brand-900);
  background-image:linear-gradient(rgba(11,31,25,.93),rgba(11,31,25,.93)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  color:#FAF8F3;padding:56px 0;
}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-grid{display:grid;gap:32px;align-items:center}
@media (min-width:960px){.cta-grid{grid-template-columns:1.2fr .8fr;gap:56px}}
.cta-band h2{font-size:26px;line-height:1.3;font-weight:700;color:#FAF8F3}
@media (min-width:768px){.cta-band h2{font-size:34px}}
.cta-band p{margin-top:14px;font-size:16px;color:rgba(250,248,243,.78)}
.cta-trust{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px;font-size:13px;color:rgba(250,248,243,.7)}
.cta-trust li{display:inline-flex;align-items:center;gap:8px}
.cta-trust svg{width:16px;height:16px;color:var(--accent-400)}
.cta-action{display:flex;flex-direction:column;gap:12px}
@media (min-width:520px){.cta-action{align-items:flex-start}}
.cta-action .hint{font-size:13px;color:rgba(250,248,243,.66)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(250,248,243,.8);padding:56px 0 32px;font-size:14px}
.footer-grid{display:grid;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-brand .brand{color:#FAF8F3;font-size:18px}
.footer-brand .brand em{color:rgba(250,248,243,.7)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(250,248,243,.68);max-width:26em}
.footer-brand .badge{margin-top:18px}
.footer-col h4{font-size:14px;font-weight:600;color:#FAF8F3;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul li + li{margin-top:10px}
.footer-col a{color:rgba(250,248,243,.72);transition:color var(--t-fast) var(--ease)}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(250,248,243,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(250,248,243,.6);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:flex;align-items:stretch;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--paper-50);
  border-top:1px solid var(--line);
}
@media (min-width:768px){.mobile-tab{display:none}}
.tab-item{
  flex:1;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--ink-500);
}
.tab-item svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand-700);font-weight:600}
.tab-item.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;background:var(--accent-400);border-radius:2px}
.tab-item:active{background:rgba(241,237,227,.7)}

/* ---------- 进场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .js .reveal{opacity:1;transform:none}
}

.site-header{background:rgba(11,31,25,.92)}

/* roulang page: category2 */
:root{
  --brand-900:#0B1F19;
  --brand-700:#123B2E;
  --brand-500:#23745A;
  --accent-400:#C9F14D;
  --accent-300:#E2FA9B;
  --amber-500:#E9A23B;
  --paper-50:#FAF8F3;
  --paper-100:#F1EDE3;
  --line:#E2DCCF;
  --ink-900:#0B1F19;
  --ink-700:#33463F;
  --ink-500:#66766F;
  --ink-300:#9AA6A0;
  --ok:#2E9E6B;
  --warn:#E2A03F;
  --err:#C8483C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(11,31,25,.05);
  --shadow-2:0 18px 40px -24px rgba(11,31,25,.35);
  --shadow-3:0 24px 56px -28px rgba(11,31,25,.45);
  --ease:cubic-bezier(.22,.8,.28,1);
  --dur-1:140ms;
  --dur-2:240ms;
  --dur-3:420ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (min-width:1024px){body{font-size:17px}}
@media (max-width:767px){body{padding-bottom:calc(60px + env(safe-area-inset-bottom))}}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color var(--dur-1) var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:3px solid rgba(201,241,77,.55);outline-offset:2px}
.num{font-family:"Space Grotesk",Inter,system-ui,"Segoe UI",sans-serif;font-weight:600;font-variant-numeric:tabular-nums}

/* 容器 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1280px){.container{padding:0 32px}}

/* 顶部导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  border-bottom:1px solid transparent;
  transition:background var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease),border-color var(--dur-2) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(250,248,243,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--paper-50)}
.brand em{font-style:normal;font-weight:500;font-size:15px;opacity:.82}
.brand-mark{
  width:30px;height:30px;flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:9px;
  background:var(--brand-700);
  border:1px solid rgba(201,241,77,.45);
}
.brand-mark svg{width:18px;height:18px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  padding:8px 13px;
  font-size:15px;
  color:rgba(250,248,243,.84);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;
  background:var(--accent-400);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 160ms var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-login{
  font-size:15px;
  color:rgba(250,248,243,.84);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:border-color var(--dur-1) var(--ease),color var(--dur-1) var(--ease);
}
.nav-login:hover{border-bottom-color:var(--accent-400);color:#fff}
.icon-btn{display:none;width:40px;height:40px;border-radius:var(--r-pill);border:1px solid rgba(250,248,243,.3);align-items:center;justify-content:center;color:var(--paper-50)}
.icon-btn:hover{border-color:var(--accent-400);color:var(--accent-400)}
.site-header.is-scrolled .brand{color:var(--ink-900)}
.site-header.is-scrolled .nav-link{color:var(--ink-700)}
.site-header.is-scrolled .nav-link:hover,.site-header.is-scrolled .nav-link.is-active{color:var(--brand-700)}
.site-header.is-scrolled .nav-login{color:var(--ink-700)}
.site-header.is-scrolled .nav-login:hover{color:var(--brand-700)}
.site-header.is-scrolled .icon-btn{color:var(--ink-700);border-color:var(--line)}
@media (max-width:1023px){
  .nav-links{gap:0}
  .nav-link{padding:8px 9px;font-size:14px}
}
@media (max-width:767px){
  .nav-inner{height:56px}
  .nav-links,.nav-login,.nav-actions .btn{display:none}
  .icon-btn{display:inline-flex}
  .brand{font-size:17px}
  .brand em{font-size:13px}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:background var(--dur-1) var(--ease),color var(--dur-1) var(--ease),border-color var(--dur-1) var(--ease),transform var(--dur-1) var(--ease),box-shadow var(--dur-2) var(--ease);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-md{height:48px;padding:0 26px;font-size:15px}
.btn-lg{height:52px;padding:0 34px;font-size:16px}
.btn-primary{background:var(--accent-400);color:var(--brand-900);box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-900);color:var(--accent-400)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(250,248,243,.55);color:var(--paper-50)}
.btn-ghost:hover{background:var(--paper-50);color:var(--brand-700);border-color:var(--paper-50)}
.btn-outline{border:1px solid var(--line);color:var(--ink-700);background:var(--paper-50)}
.btn-outline:hover{border-color:var(--accent-400);color:var(--brand-700)}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-700);
  border-bottom:2px solid var(--accent-300);
  padding-bottom:2px;
}
.link-more svg{transition:transform var(--dur-2) var(--ease)}
.link-more:hover{border-bottom-color:var(--accent-400)}
.link-more:hover svg{transform:translateX(4px)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  background:var(--paper-100);color:var(--ink-700);
}
.badge-lime{background:rgba(201,241,77,.28);color:var(--brand-700)}
.badge-amber{background:rgba(233,162,59,.18);color:#8A5A10}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--ink-700)}
.badge-dark{background:rgba(250,248,243,.12);color:var(--accent-400)}

/* 分类页头 */
.page-hero{
  position:relative;
  background:var(--brand-900);
  color:var(--paper-50);
  padding:132px 0 68px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,31,25,.95) 0%,rgba(11,31,25,.76) 52%,rgba(11,31,25,.5) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media (max-width:1023px){
  .page-hero{padding:104px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(250,248,243,.66);margin-bottom:20px}
.crumbs a{color:rgba(250,248,243,.66)}
.crumbs a:hover{color:var(--accent-400)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--paper-50);font-weight:600}
.page-hero h1{
  font-size:38px;
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.page-hero h1 .hl{color:var(--accent-400)}
@media (min-width:768px){.page-hero h1{font-size:46px}}
@media (min-width:1280px){.page-hero h1{font-size:54px}}
.hero-lead{font-size:16px;color:rgba(250,248,243,.78);max-width:560px}
@media (min-width:1024px){.hero-lead{font-size:17px}}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-fact{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:rgba(250,248,243,.72);
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(250,248,243,.16);
}
.hero-fact svg{width:14px;height:14px;stroke:var(--accent-400)}
.hero-banner{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(250,248,243,.16);
  aspect-ratio:16/10;
  box-shadow:var(--shadow-2);
}
.hero-banner img{width:100%;height:100%}
@media (max-width:1023px){.hero-banner{aspect-ratio:16/9;max-width:520px}}

/* 板块 */
.section{padding:72px 0}
@media (min-width:1024px){.section{padding:104px 0}}
.section-tight{padding:56px 0}
@media (min-width:1024px){.section-tight{padding:80px 0}}
.section-head{margin-bottom:36px}
.section-head.with-side{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--brand-500);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent-400);border-radius:2px}
h2.section-title{
  position:relative;
  font-size:26px;line-height:1.3;font-weight:700;color:var(--ink-900);
  padding-left:14px;
  letter-spacing:-.01em;
}
h2.section-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;
  width:3px;border-radius:2px;background:var(--accent-400);
}
@media (min-width:1024px){h2.section-title{font-size:36px}}
.section-desc{margin-top:14px;font-size:15px;color:var(--ink-500);max-width:640px}
.section-aside{font-size:14px;color:var(--ink-500);max-width:280px}

/* 图文清单网格 */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:1023px){.entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media (max-width:560px){.entry-grid{grid-template-columns:1fr;gap:16px}}
.entry-card{
  display:flex;flex-direction:column;
  background:var(--paper-50);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:box-shadow var(--dur-2) var(--ease),transform var(--dur-2) var(--ease),border-color var(--dur-2) var(--ease);
}
.entry-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#D6CFBE}
.entry-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-100)}
.entry-media img{width:100%;height:100%;transition:transform var(--dur-3) var(--ease)}
.entry-card:hover .entry-media img{transform:scale(1.03)}
.entry-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-body h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink-900)}
@media (min-width:1024px){.entry-body h3{font-size:19px}}
.entry-body p{font-size:14.5px;line-height:1.75;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-300)}
.entry-foot .arrow{color:var(--brand-500);transition:transform var(--dur-2) var(--ease)}
.entry-card:hover .entry-foot .arrow{transform:translateX(4px)}

/* 分步路径 */
.steps-panel{
  background:var(--paper-100);
  border-radius:var(--r-xl);
  padding:40px 32px;
  border:1px solid var(--line);
}
@media (max-width:767px){.steps-panel{padding:28px 20px;border-radius:var(--r-lg)}}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative}
@media (max-width:767px){.steps{grid-template-columns:1fr;gap:20px}}
.step{position:relative;padding-top:22px;border-top:1px solid var(--line)}
.step::before{content:"";position:absolute;left:0;top:-1px;width:44px;height:3px;background:var(--accent-400);border-radius:3px}
.step-no{font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-size:34px;font-weight:600;line-height:1;color:var(--brand-500);letter-spacing:-.02em}
.step h3{margin-top:12px;font-size:19px;font-weight:600;color:var(--ink-900)}
.step p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--ink-500)}

/* 要点条 */
.point-list{border-top:1px solid var(--line)}
.point-item{
  display:grid;grid-template-columns:44px 1fr auto;gap:20px;align-items:center;
  padding:22px 4px;
  border-bottom:1px solid var(--line);
  transition:background var(--dur-2) var(--ease);
}
.point-item:hover{background:rgba(241,237,227,.5)}
.point-icon{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(201,241,77,.22);
  color:var(--brand-700);
}
.point-icon svg{width:20px;height:20px}
.point-text h3{font-size:17px;font-weight:600;color:var(--ink-900)}
.point-text p{font-size:14.5px;color:var(--ink-500);margin-top:2px}
.point-tag{font-size:12px;letter-spacing:.08em;color:var(--ink-300);white-space:nowrap}
@media (max-width:767px){
  .point-item{grid-template-columns:40px 1fr;gap:14px;padding:18px 2px}
  .point-tag{display:none}
}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 2px;
  text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color var(--dur-1) var(--ease);
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  position:relative;flex:0 0 auto;width:22px;height:22px;
  transition:transform var(--dur-2) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-500);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--brand-700)}
html.js .faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height var(--dur-2) var(--ease),opacity var(--dur-2) var(--ease)}
html.js .faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 2px 24px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-500)}

/* CTA 带 */
.cta-band{
  position:relative;
  background:var(--brand-900);
  color:var(--paper-50);
  padding:64px 0;
  overflow:hidden;
}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(circle at 82% 24%,rgba(201,241,77,.16),transparent 46%);
}
.cta-band .container{position:relative;z-index:2}
.cta-grid{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-copy{max-width:560px}
.cta-copy h2{font-size:26px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
@media (min-width:1024px){.cta-copy h2{font-size:34px}}
.cta-copy p{margin-top:14px;font-size:15px;color:rgba(250,248,243,.74)}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px}
.cta-points span{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:rgba(250,248,243,.72)}
.cta-points svg{width:14px;height:14px;stroke:var(--accent-400)}
.cta-action{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.cta-action small{font-size:13px;color:rgba(250,248,243,.6)}
@media (max-width:767px){
  .cta-action{width:100%}
  .cta-action .btn{width:100%}
}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(250,248,243,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.footer-brand .brand{color:var(--paper-50);margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(250,248,243,.66);max-width:320px;margin-bottom:16px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--paper-50);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(250,248,243,.66)}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(250,248,243,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(250,248,243,.5);
}

/* 底部 Tab */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;
  z-index:90;
  display:none;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(250,248,243,.96);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
@media (max-width:767px){.tabbar{display:flex}}
.tab-item{
  position:relative;
  flex:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;
  color:var(--ink-500);
  transition:color var(--dur-1) var(--ease);
}
.tab-item::before{
  content:"";
  position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:26px;height:2px;background:var(--accent-400);border-radius:2px;
  transition:transform var(--dur-2) var(--ease);
}
.tab-item svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.6}
.tab-item.is-active{color:var(--brand-700)}
.tab-item.is-active::before{transform:translateX(-50%) scaleX(1)}
.tab-item.is-active svg{stroke-width:2}

/* 滚动进场 */
html.js .reveal{opacity:0;transform:translateY(14px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
html.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  html.js .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B1F19;
  --brand-700:#123B2E;
  --brand-500:#23745A;
  --accent-400:#C9F14D;
  --accent-300:#E2FA9B;
  --amber-500:#E9A23B;
  --paper-50:#FAF8F3;
  --paper-100:#F1EDE3;
  --line:#E2DCCF;
  --ink-900:#0B1F19;
  --ink-700:#33463F;
  --ink-500:#66766F;
  --ink-300:#9AA6A0;
  --ok:#2E9E6B;
  --warn:#E2A03F;
  --err:#C8483C;
  --radius-sm:8px;
  --radius-md:16px;
  --radius-lg:24px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,31,25,.05);
  --shadow-2:0 18px 40px -24px rgba(11,31,25,.35);
  --shadow-3:0 24px 56px -28px rgba(11,31,25,.45);
  --ease:cubic-bezier(.22,.8,.28,1);
  --fast:140ms;
  --base:240ms;
  --slow:420ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper-50);
  padding-bottom:calc(60px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}
@media (min-width:768px){body{padding-bottom:0}}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.25}
p{margin:0}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(201,241,77,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1280px){.container{padding:0 32px}}
@media (min-width:1536px){.container{max-width:1280px}}
.num{font-family:"Space Grotesk","Inter",system-ui,-apple-system,sans-serif;font-weight:600}

/* ============ 顶栏 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:56px;display:flex;align-items:center;
  color:var(--paper-50);
  background:linear-gradient(to bottom,rgba(11,31,25,.62),rgba(11,31,25,0));
  transition:background var(--base) var(--ease),color var(--base) var(--ease),box-shadow var(--base) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(250,248,243,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  color:var(--ink-700);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
@media (min-width:768px){.site-header{height:72px}}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:17px;letter-spacing:.02em;color:inherit}
.brand em{font-style:normal;font-weight:500;font-size:12px;opacity:.7;letter-spacing:.06em}
@media (min-width:768px){.brand{font-size:19px}.brand em{font-size:13px}}
.brand-mark{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center}
.brand-mark svg{width:22px;height:22px}
.nav-links{display:none}
@media (min-width:1024px){.nav-links{display:flex;align-items:center;gap:26px}}
.nav-link{position:relative;display:inline-block;font-size:15px;opacity:.85;padding:6px 0;transition:color var(--fast) var(--ease),opacity var(--fast) var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--accent-400);transition:width 160ms var(--ease)}
.nav-link:hover{opacity:1}
.nav-link:hover::after{width:100%}
.nav-link.is-active{opacity:1;font-weight:600}
.nav-link.is-active::after{width:100%}
.site-header.is-scrolled .nav-link:hover{color:var(--brand-700)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-login{display:none;font-size:15px;position:relative;padding:4px 0;opacity:.9}
.nav-login::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:currentColor;transition:width 160ms var(--ease)}
.nav-login:hover::after{width:100%}
@media (min-width:768px){.nav-login{display:inline-block}}
.icon-btn{
  width:38px;height:38px;border-radius:var(--radius-pill);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(250,248,243,.35);color:inherit;
  transition:background var(--fast) var(--ease),color var(--fast) var(--ease),border-color var(--fast) var(--ease);
}
.icon-btn:hover{background:rgba(250,248,243,.14)}
.site-header.is-scrolled .icon-btn{border-color:var(--line);color:var(--ink-700)}
.site-header.is-scrolled .icon-btn:hover{background:var(--paper-100)}
@media (min-width:768px){.icon-btn{display:none}}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);border:1px solid transparent;
  font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background var(--base) var(--ease),color var(--base) var(--ease),border-color var(--base) var(--ease),transform var(--fast) var(--ease),box-shadow var(--base) var(--ease);
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-md{height:44px;padding:0 22px;font-size:15px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--accent-400);color:var(--brand-900)}
.btn-primary:hover{background:var(--brand-900);color:var(--accent-400);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:rgba(250,248,243,.5);color:var(--paper-50);background:transparent}
.btn-ghost:hover{background:var(--paper-50);color:var(--brand-700);border-color:var(--paper-50)}
.btn-outline{border-color:var(--line);color:var(--ink-700);background:transparent}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700);background:var(--paper-100)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-plain{background:var(--paper-100);color:var(--ink-700);border:1px solid var(--line)}
.badge-lime{background:rgba(201,241,77,.28);color:var(--brand-700);border:1px solid rgba(18,59,46,.18)}
.badge-amber{background:rgba(233,162,59,.18);color:#8A5A12;border:1px solid rgba(233,162,59,.45)}
.badge-outline{border:1px solid var(--brand-700);color:var(--brand-700);background:transparent}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:104px 0 56px;
  color:var(--paper-50);
  background-color:var(--brand-900);
  background-image:linear-gradient(100deg,rgba(11,31,25,.95) 0%,rgba(11,31,25,.82) 46%,rgba(11,31,25,.46) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
@media (min-width:768px){.page-hero{padding:132px 0 72px}}
@media (min-width:1024px){.page-hero{padding:156px 0 88px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.15fr .85fr;gap:56px}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(250,248,243,.7);margin-bottom:20px}
.breadcrumb a{transition:color var(--fast) var(--ease)}
.breadcrumb a:hover{color:var(--accent-400)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--paper-50);font-weight:600}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.12em;color:var(--accent-400);margin-bottom:16px}
.eyebrow-line{display:inline-block;width:24px;height:2px;background:var(--accent-400);border-radius:2px}
.page-hero h1{
  font-size:32px;line-height:1.22;color:var(--paper-50);
  letter-spacing:-.01em;margin-bottom:18px;
}
@media (min-width:768px){.page-hero h1{font-size:44px}}
@media (min-width:1024px){.page-hero h1{font-size:54px;line-height:1.15}}
.page-hero h1 .hl{color:var(--accent-400)}
.hero-desc{font-size:16px;color:rgba(250,248,243,.82);max-width:30em;margin-bottom:28px}
@media (min-width:1024px){.hero-desc{font-size:17px}}
.hero-actions{display:flex;flex-direction:column;gap:12px}
@media (min-width:520px){.hero-actions{flex-direction:row;align-items:center}}
.hero-actions .btn{width:100%}
@media (min-width:520px){.hero-actions .btn{width:auto}}
.hero-trust{display:flex;flex-wrap:wrap;gap:20px;margin-top:32px;font-size:13px;color:rgba(250,248,243,.72)}
.hero-trust li{display:inline-flex;align-items:center;gap:6px}
.hero-trust svg{width:16px;height:16px;stroke:var(--accent-400);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.hero-figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(250,248,243,.16);box-shadow:var(--shadow-3)}
.hero-figure img{width:100%;aspect-ratio:16/10;border-radius:var(--radius-lg)}

/* ============ 通用板块 ============ */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--paper-100)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:32px}
.section-head h2{position:relative;padding-left:16px;font-size:26px;letter-spacing:-.01em}
@media (min-width:1024px){.section-head h2{font-size:36px}}
.section-head h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--accent-400)}
.section-note{font-size:14px;color:var(--ink-500);max-width:24em}
.lead{font-size:16px;color:var(--ink-500);max-width:62em}
@media (min-width:1024px){.lead{font-size:17px}}

/* ============ 对比区 ============ */
.compare-grid{display:grid;grid-template-columns:1fr;gap:0}
@media (min-width:768px){
  .compare-grid{grid-template-columns:1fr 1fr}
  .compare-col:first-child{padding-right:44px}
  .compare-col+.compare-col{border-left:1px solid var(--line);padding-left:44px}
}
.compare-col{padding:24px 0 8px}
@media (min-width:768px){.compare-col{padding:8px 0}}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:20px;margin-bottom:8px}
@media (min-width:1024px){.compare-col h3{font-size:22px}}
.compare-col .col-desc{font-size:14px;color:var(--ink-500);margin-bottom:18px}
.compare-col.is-member h3{color:var(--brand-700)}
.compare-list li{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px;
  padding:14px 0;border-bottom:1px solid var(--line);
}
.compare-list li:last-child{border-bottom:0}
.compare-list .k{font-size:14px;color:var(--ink-500);min-width:96px}
.compare-list .v{font-size:15px;color:var(--ink-900);font-weight:500;text-align:right;flex:1 1 200px}
.compare-col.is-member .compare-list .v{color:var(--brand-700)}
.compare-mark{display:inline-flex;align-items:center;gap:6px}
.compare-mark svg{width:16px;height:16px;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.mark-yes svg{stroke:var(--ok)}
.mark-no svg{stroke:var(--ink-300)}

/* ============ 指标条 ============ */
.stat-band{
  display:grid;grid-template-columns:1fr;gap:24px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:28px 0;margin-bottom:48px;
}
@media (min-width:768px){.stat-band{grid-template-columns:repeat(3,1fr);gap:0}}
.stat-item{position:relative;padding-left:18px}
@media (min-width:768px){
  .stat-item{padding:0 28px;border-left:1px solid var(--line)}
  .stat-item:first-child{border-left:0;padding-left:0}
}
.stat-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--accent-400)}
@media (min-width:768px){.stat-item::before{display:none}}
.stat-item .stat-num{font-size:40px;line-height:1;color:var(--ink-900);letter-spacing:-.02em}
@media (min-width:1024px){.stat-item .stat-num{font-size:48px}}
.stat-item .stat-num i{font-style:normal;font-size:18px;margin-left:4px;color:var(--brand-500)}
.stat-item .stat-label{font-size:14px;color:var(--ink-500);margin-top:8px}

/* ============ 步骤 ============ */
.steps{position:relative;margin-top:8px}
.steps::before{content:"";position:absolute;left:11px;top:12px;bottom:12px;width:2px;background:linear-gradient(180deg,var(--accent-400),rgba(201,241,77,.15));border-radius:2px}
.step{position:relative;padding:0 0 28px 44px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:4px;top:9px;width:16px;height:16px;border-radius:50%;
  background:var(--paper-50);border:3px solid var(--brand-700);
}
@media (min-width:1024px){.step::before{border-color:var(--accent-400)}}
.step h3{font-size:19px;margin-bottom:6px}
@media (min-width:1024px){.step h3{font-size:20px}}
.step p{font-size:15px;color:var(--ink-500);max-width:60em}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color var(--fast) var(--ease);
}
.faq-item.is-open .faq-q,.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform var(--base) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-body{font-size:15px;line-height:1.85;color:var(--ink-500);padding-bottom:20px;max-width:46em}
.js .faq-body{max-height:0;opacity:0;overflow:hidden;padding-bottom:0;transition:max-height var(--base) var(--ease),opacity var(--base) var(--ease),padding var(--base) var(--ease)}
.js .faq-item.is-open .faq-body{max-height:460px;opacity:1;padding-bottom:20px}

/* ============ CTA ============ */
.cta-band{
  position:relative;color:var(--paper-50);background-color:var(--brand-900);
  background-image:linear-gradient(90deg,rgba(11,31,25,.95),rgba(11,31,25,.86)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:64px 0;
}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:1024px){.cta-grid{grid-template-columns:1.2fr .8fr;gap:56px}}
.cta-band h2{color:var(--paper-50);font-size:26px;margin-bottom:14px}
@media (min-width:1024px){.cta-band h2{font-size:38px}}
.cta-band .cta-sub{color:rgba(250,248,243,.8);font-size:16px;margin-bottom:22px}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:13px;color:rgba(250,248,243,.74)}
.cta-points li{display:inline-flex;align-items:center;gap:8px}
.cta-points svg{width:16px;height:16px;stroke:var(--accent-400);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.cta-action{display:flex;flex-direction:column;gap:12px}
@media (min-width:1024px){.cta-action{align-items:flex-start}}
.cta-action .btn{width:100%}
@media (min-width:1024px){.cta-action .btn{width:auto}}
.cta-action .cta-hint{font-size:13px;color:rgba(250,248,243,.62)}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(250,248,243,.78);padding:56px 0 32px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-brand{grid-column:1 / -1}
@media (min-width:1024px){.footer-brand{grid-column:auto}}
.footer-brand .brand{color:var(--paper-50);font-size:18px}
.footer-desc{margin:14px 0 16px;line-height:1.8;color:rgba(250,248,243,.68);max-width:32em}
.footer-col h4{color:var(--paper-50);font-size:15px;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(250,248,243,.72);transition:color var(--fast) var(--ease)}
.footer-col a:hover{color:var(--accent-400)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(250,248,243,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(250,248,243,.55);
}

/* ============ 底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:120;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--paper-50);border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(5,1fr);
}
@media (min-width:768px){.tabbar{display:none}}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:11px;color:var(--ink-500);
  transition:color var(--fast) var(--ease);
}
.tab-item svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--brand-700);font-weight:600}
.tab-item.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:2px;border-radius:2px;background:var(--accent-400)}

/* ============ 进场动效 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity var(--slow) var(--ease),transform var(--slow) var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}