/* roulang page: index */
:root{
  --brand:#0E5B49;
  --brand-2:#1F8A70;
  --brand-3:#5FCBA8;
  --orange:#FF7A3D;
  --gold:#FFC24B;
  --ink:#10201B;
  --ink-2:#4A5B55;
  --ink-3:#7C8B85;
  --line:#E6E0D6;
  --paper:#FBF8F3;
  --card:#FFFFFF;
  --soft:#F2F6F3;
  --footer:#0B3229;
  --footer-text:#D9E7E1;
  --grad-brand:linear-gradient(118deg,#0E5B49 0%,#1F8A70 48%,#5FCBA8 100%);
  --grad-accent:linear-gradient(100deg,#1F8A70 0%,#2FA37F 60%,#FF7A3D 130%);
  --r-xl:32px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:16px;
  --shadow-1:0 1px 2px rgba(16,32,27,.04),0 10px 28px -14px rgba(16,32,27,.16);
  --shadow-2:0 22px 44px -20px rgba(14,91,73,.34);
  --shadow-3:0 30px 60px -24px rgba(11,50,41,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
::selection{background:rgba(95,203,168,.35);color:var(--ink)}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;box-shadow:0 0 0 3px rgba(31,138,112,.22)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.g-gap{margin-left:-12px;margin-right:-12px}
.g-gap>.cell{padding-left:12px;padding-right:12px;margin-bottom:32px}
.section{padding:88px 0}
.section--soft{background:var(--soft)}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.6vw,30px);line-height:1.3;font-weight:700;letter-spacing:-.3px;color:var(--ink)}
.section-sub{margin-top:8px;font-size:15px;color:var(--ink-3)}

/* 公告条 */
.notice-bar{background:var(--brand);color:#EAF6F1;font-size:13.5px}
.notice-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px}
.notice-inner p{display:flex;align-items:center;gap:10px;line-height:1.5}
.notice-dot{width:6px;height:6px;border-radius:50%;background:var(--gold);flex:none}
.notice-close{width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#EAF6F1;font-size:16px;line-height:1;flex:none;transition:background-color .2s var(--ease)}
.notice-close:hover{background:rgba(255,255,255,.16)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,248,243,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(16,32,27,.06),0 14px 30px -22px rgba(16,32,27,.4)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:32px;height:32px;border-radius:50%;background:var(--grad-brand);display:inline-flex;align-items:center;justify-content:center;flex:none;box-shadow:0 6px 16px -8px rgba(14,91,73,.8)}
.brand-mark svg{width:19px;height:19px;color:#fff}
.brand-name{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.2px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;white-space:nowrap;transition:color .2s var(--ease)}
.nav-link:hover{color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.nav-search{display:flex;align-items:center;gap:8px;width:240px;height:44px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--line);transition:width .25s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.nav-search:focus-within{width:300px;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(31,138,112,.16)}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex:none}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--ink);outline:none}
.nav-search input::placeholder{color:var(--ink-3)}
.btn-login{font-size:15px;color:var(--ink-2);padding:8px 4px;white-space:nowrap;transition:color .2s var(--ease)}
.btn-login:hover{color:var(--brand)}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;background:var(--soft);color:var(--brand);align-items:center;justify-content:center}
.hamburger svg{width:20px;height:20px}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(11,50,41,.45);opacity:0;pointer-events:none;transition:opacity .25s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:var(--paper);z-index:90;transform:translateX(100%);transition:transform .28s var(--ease);display:flex;flex-direction:column;padding:24px;box-shadow:var(--shadow-3)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border-radius:50%;background:var(--soft);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:18px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:14px 12px;border-radius:12px;font-size:16px;color:var(--ink);font-weight:500}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--soft);color:var(--brand)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:24px;border-top:1px solid var(--line)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;white-space:nowrap;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease)}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);filter:brightness(1.03);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-secondary{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-secondary:hover{background:rgba(31,138,112,.08);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(0)}
.btn-outline-light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn-sm{padding:9px 20px;font-size:14px;min-height:40px}
.btn[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:#3A2A00}
.ghost-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.ghost-link span{transition:transform .2s var(--ease)}
.ghost-link:hover span{transform:translateX(4px)}
.icon-btn{width:40px;height:40px;min-height:40px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.icon-btn:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-1px)}

/* 标签 */
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;padding:5px 12px;border-radius:999px;background:var(--soft);color:var(--brand);white-space:nowrap}
.chip--glass{background:rgba(255,255,255,.94);color:var(--ink);backdrop-filter:blur(6px);box-shadow:0 2px 10px rgba(16,32,27,.1)}
.chip--orange{background:rgba(255,122,61,.14);color:#A8410F}
.chip--solid{background:var(--brand);color:#fff}

/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 80px;background:var(--paper)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(520px 320px at 88% 6%, rgba(95,203,168,.3), transparent 70%),
  radial-gradient(420px 280px at 4% 94%, rgba(255,122,61,.14), transparent 70%),
  linear-gradient(118deg, rgba(14,91,73,.1) 0%, rgba(31,138,112,.05) 46%, rgba(95,203,168,.12) 100%);}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;background-image:linear-gradient(rgba(16,32,27,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(16,32,27,.9) 1px,transparent 1px);background-size:44px 44px}
.hero>.container{position:relative;z-index:2}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(31,138,112,.12);color:var(--brand);font-size:13px;font-weight:600;letter-spacing:.4px}
.hero h1{margin-top:20px;font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:700;letter-spacing:-.5px;color:var(--ink)}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:34em}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-badges{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-size:14px;color:var(--ink-2);backdrop-filter:blur(6px)}
.hero-badge b{font-size:17px;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-media{position:relative;border-radius:28px;overflow:hidden;aspect-ratio:16/11;background:#E8EFEA;box-shadow:var(--shadow-2)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,50,41,.12) 0%,rgba(11,50,41,.58) 100%)}
.hero-media .chip{position:absolute;top:18px;left:18px;z-index:2}
.float-badge{position:absolute;right:18px;bottom:18px;z-index:2;background:rgba(251,248,243,.96);border-radius:16px;padding:12px 18px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--shadow-1)}
.float-badge strong{font-size:22px;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums}
.float-badge span{font-size:12px;color:var(--ink-3)}

/* 合集卡 */
.collection-card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden;height:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.collection-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.collection-card__link{display:flex;flex-direction:column;height:100%;color:inherit}
.collection-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E8EFEA}
.collection-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.collection-card:hover .thumb img{transform:scale(1.04)}
.collection-card .chip{position:absolute;top:14px;left:14px}
.collection-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.collection-card h3{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.collection-card p{font-size:15px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px}
.count-badge{font-size:13px;color:var(--ink-2);background:var(--soft);border-radius:999px;padding:5px 12px}
.count-badge b{color:var(--brand);font-size:15px;font-variant-numeric:tabular-nums}
.arrow-btn{width:36px;height:36px;border-radius:50%;background:var(--soft);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;flex:none;transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.collection-card:hover .arrow-btn{background:var(--brand);color:#fff;transform:translateX(2px)}
.collection-card--more{display:flex;align-items:center;justify-content:center;min-height:300px;padding:36px 24px;text-align:center;background:rgba(242,246,243,.7);border:2px dashed #C9D6D0;box-shadow:none}
.collection-card--more:hover{transform:translateY(-4px);border-color:var(--brand-2);background:rgba(242,246,243,.95);box-shadow:var(--shadow-1)}
.more-inner{display:flex;flex-direction:column;align-items:center;gap:10px}
.more-inner strong{font-size:18px;font-weight:600;color:var(--ink)}
.more-inner span{font-size:14px;color:var(--ink-2)}
.more-plus{width:44px;height:44px;border-radius:50%;background:#fff;color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:22px;line-height:1;box-shadow:var(--shadow-1)}

/* 精选条目 */
.feature-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden;height:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.feature-card__link{display:grid;grid-template-columns:1fr;height:100%;color:inherit}
.feature-card__media{position:relative;overflow:hidden;background:#E8EFEA;min-height:240px;aspect-ratio:16/10}
.feature-card__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.feature-card:hover .feature-card__media img{transform:scale(1.04)}
.feature-card__body{padding:28px;display:flex;flex-direction:column;gap:12px}
.feature-card__body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink)}
.feature-card__body p{font-size:15px;line-height:1.75;color:var(--ink-2)}
.meta-row{display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:8px;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C9D6D0;display:inline-block}
.feature-side{display:flex;flex-direction:column;gap:24px;height:100%}
.mini-card{flex:1;background:#fff;border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.mini-card a{display:flex;gap:16px;padding:16px;color:inherit;height:100%}
.mini-card__media{flex:0 0 128px;border-radius:12px;overflow:hidden;background:#E8EFEA;aspect-ratio:4/3}
.mini-card__media img{width:100%;height:100%;object-fit:cover}
.mini-card__body{display:flex;flex-direction:column;gap:8px;min-width:0}
.mini-card__body h3{font-size:16px;line-height:1.45;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card__body p{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 最新信息 */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px 24px;height:100%;display:flex;flex-direction:column;gap:10px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
.news-card:hover{border-color:rgba(31,138,112,.4);box-shadow:var(--shadow-1);transform:translateY(-2px)}
.news-card__title{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__title a{color:inherit}
.news-card__title a:hover{color:var(--brand)}
.news-card__desc{font-size:15px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:10px;border-top:1px dashed var(--line)}
.news-card__meta time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.empty-state{border:2px dashed #C9D6D0;border-radius:var(--r-md);padding:56px 24px;text-align:center;background:rgba(242,246,243,.55);display:flex;flex-direction:column;align-items:center;gap:12px}
.empty-state svg{width:48px;height:48px;color:rgba(14,91,73,.32)}
.empty-state strong{font-size:16px;font-weight:600;color:var(--ink)}
.empty-state p{font-size:14px;color:var(--ink-2)}

/* 数据徽章条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:#fff;border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--shadow-1);display:flex;align-items:center;gap:14px;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.stat strong{font-size:26px;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums;flex:none}
.stat span{font-size:14px;line-height:1.5;color:var(--ink-2)}

/* 横滚推荐 */
.scroll-wrap{position:relative}
.scroll-head-extra{display:flex;align-items:center;gap:10px}
.scroll-row{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 18px;scrollbar-width:thin}
.scroll-row::-webkit-scrollbar{height:6px}
.scroll-row::-webkit-scrollbar-thumb{background:#C9D6D0;border-radius:999px}
.scroll-card{flex:0 0 22%;scroll-snap-align:start;background:#fff;border-radius:20px;box-shadow:var(--shadow-1);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.scroll-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.scroll-card a{display:flex;flex-direction:column;height:100%;color:inherit}
.scroll-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E8EFEA}
.scroll-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.scroll-card:hover .thumb img{transform:scale(1.04)}
.scroll-card__body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px}
.scroll-card__body h3{font-size:16px;line-height:1.45;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.scroll-card__body time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* CTA */
.cta-card{position:relative;overflow:hidden;border-radius:var(--r-xl);padding:56px;background:linear-gradient(120deg,#0B3229 0%,#0E5B49 55%,#1F8A70 100%);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;box-shadow:var(--shadow-3)}
.cta-card::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.18}
.cta-card__text,.cta-card__actions{position:relative;z-index:2}
.cta-card__text{max-width:34em}
.cta-card h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.3px}
.cta-card p{margin-top:12px;font-size:15.5px;line-height:1.8;color:rgba(217,231,225,.88)}
.cta-card__actions{display:flex;gap:14px;flex-wrap:wrap}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion{background:transparent;border:0;margin:0}
.accordion-item{position:relative;background:#fff;border:0;border-radius:var(--r-sm);margin-bottom:12px;box-shadow:var(--shadow-1);overflow:hidden}
.accordion-title{display:block;padding:20px 64px 20px 24px;font-size:17px;font-weight:600;color:var(--ink);border:0;background:#fff;position:relative;transition:background-color .24s var(--ease),color .24s var(--ease)}
.accordion-title:hover{color:var(--brand)}
.accordion-title::before{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:22px;line-height:1;color:var(--brand-2);transition:transform .24s var(--ease),color .24s var(--ease)}
.accordion-item.is-active .accordion-title{background:var(--soft);color:var(--brand)}
.accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);color:var(--brand)}
.accordion-item.is-active::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand);z-index:2}
.accordion-content{padding:0 24px 22px;border:0;background:#fff;font-size:15.5px;line-height:1.85;color:var(--ink-2)}
.accordion-item.is-active .accordion-content{background:var(--soft)}

/* 页脚 */
.site-footer{background:var(--footer);color:var(--footer-text);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-name{color:#fff}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(217,231,225,.75);max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.social-btn{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);color:var(--footer-text);display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.social-btn:hover{background:var(--brand-3);color:#08301F;transform:translateY(-2px)}
.social-btn svg{width:17px;height:17px}
.footer-col h4{position:relative;font-size:14px;font-weight:700;color:#fff;padding-bottom:10px;margin-bottom:4px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--brand-3)}
.footer-links{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.footer-links a{font-size:14px;color:var(--footer-text);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:var(--brand-3);transform:translateX(2px)}
.subscribe{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.subscribe input{flex:1 1 150px;min-height:44px;padding:12px 16px;border-radius:14px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14px;outline:none}
.subscribe input::placeholder{color:rgba(217,231,225,.55)}
.subscribe input:focus{border-color:var(--brand-3);box-shadow:0 0 0 3px rgba(95,203,168,.2)}
.footer-note{margin-top:14px;font-size:13px;line-height:1.7;color:rgba(217,231,225,.6)}
.footer-note a{color:rgba(217,231,225,.8);text-decoration:underline;text-underline-offset:3px}
.footer-note a:hover{color:var(--brand-3)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(217,231,225,.66)}
.footer-bottom a{color:rgba(217,231,225,.8)}
.footer-bottom a:hover{color:var(--brand-3)}

/* 交互 */
.toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);background:rgba(11,50,41,.95);color:#fff;font-size:14px;padding:12px 24px;border-radius:999px;box-shadow:var(--shadow-3);opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);z-index:120}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* 断点 */
@media screen and (max-width:1023px){
  .nav-links,.nav-search,.btn-login{display:none}
  .hamburger{display:inline-flex}
  .section{padding:64px 0}
  .hero{padding:48px 0 56px}
  .scroll-nav{display:none}
  .scroll-card{flex:0 0 44%}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-card{padding:40px}
  .drawer,.drawer-mask{}
}
@media screen and (min-width:1024px){
  .drawer,.drawer-mask{display:none}
  .feature-card__link{grid-template-columns:44% 1fr}
}
@media screen and (max-width:767px){
  .mini-card a{flex-direction:column}
  .mini-card__media{flex:0 0 auto;width:100%;aspect-ratio:16/10}
  .scroll-card{flex:0 0 72%}
  .cta-card__actions{width:100%}
  .cta-card__actions .btn{flex:1 1 auto}
}
@media screen and (max-width:639px){
  .container{padding:0 16px}
  body{font-size:16px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .nav-inner{height:64px;gap:12px}
  .brand-name{font-size:14px}
  .brand-mark{width:28px;height:28px}
  .brand-mark svg{width:16px;height:16px}
  .cta-card{padding:28px;border-radius:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .stats{grid-template-columns:1fr}
  .scroll-card{flex:0 0 84%}
  .feature-card__body{padding:20px}
  .news-card{padding:18px 20px}
  .hero-badges{gap:10px}
  .hero-badge{padding:8px 14px;font-size:13px}
  .empty-state{padding:40px 20px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
  .collection-card:hover,.mini-card:hover,.feature-card:hover,.scroll-card:hover,.stat:hover{transform:none}
  .collection-card:hover .thumb img,.feature-card:hover .feature-card__media img,.scroll-card:hover .thumb img{transform:none}
}

/* roulang page: category1 */
:root{
  --brand-900:#0E5B49;
  --brand-700:#1F8A70;
  --brand-400:#5FCBA8;
  --accent:#FF7A3D;
  --gold:#FFC24B;
  --ink:#10201B;
  --ink-2:#4A5B55;
  --ink-3:#7C8B85;
  --line:#E6E0D6;
  --paper:#FBF8F3;
  --card:#FFFFFF;
  --mist:#F2F6F3;
  --footer-bg:#0B3229;
  --footer-text:#D9E7E1;
  --grad-brand:linear-gradient(118deg,#0E5B49 0%,#1F8A70 48%,#5FCBA8 100%);
  --grad-accent:linear-gradient(100deg,#1F8A70 0%,#2FA37F 60%,#FF7A3D 130%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:16px;
  --r-xl:32px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,27,.04),0 10px 28px -14px rgba(16,32,27,.16);
  --shadow-2:0 22px 44px -20px rgba(14,91,73,.34);
  --shadow-3:0 30px 60px -24px rgba(11,50,41,.35);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand-700);
  outline-offset:2px;
  box-shadow:0 0 0 3px rgba(31,138,112,.22);
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- Foundation overrides ---------- */
.button,.button.primary,.button.secondary{
  background:none;color:inherit;border-radius:var(--r-pill);
  padding:0;margin:0;font-size:15px;line-height:1.4;
}
.accordion{background:transparent;margin:0;}
.accordion-item{border:0;background:transparent;}
.accordion-title{
  border:0;padding:0;color:var(--ink);font-size:17px;font-weight:600;line-height:1.5;
}
.accordion-title:hover,.accordion-title:focus{background:transparent;color:var(--brand-900);}
.accordion-content{padding:0;border:0;background:transparent;color:var(--ink-2);}
.menu a{color:inherit;}
input[type="email"],input[type="text"]{margin:0;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,248,243,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(16,32,27,.35);}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:50%;
  background:var(--grad-brand);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(14,91,73,.7);
}
.brand-mark svg{width:19px;height:19px;}
.brand-name{
  font-size:16px;font-weight:700;letter-spacing:-.2px;white-space:nowrap;color:var(--ink);
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-700);transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--brand-900);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-900);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-pill{
  display:flex;align-items:center;gap:8px;
  width:240px;height:42px;padding:0 16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:width var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-pill:focus-within{
  width:300px;border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(31,138,112,.14);
}
.search-pill svg{width:17px;height:17px;color:var(--ink-3);flex:0 0 auto;}
.search-pill input{
  border:0;background:transparent;width:100%;height:100%;outline:none;
  font-size:14px;color:var(--ink);
}
.search-pill input::placeholder{color:var(--ink-3);}
.nav-login{font-size:15px;color:var(--ink-2);padding:8px 4px;transition:color var(--ease);}
.nav-login:hover{color:var(--brand-900);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{
  background:var(--grad-accent);color:#fff;box-shadow:var(--shadow-2);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);filter:brightness(1.03);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-outline{
  background:#fff;color:var(--brand-900);border:1.5px solid var(--brand-700);
}
.btn-outline:hover{background:rgba(31,138,112,.08);transform:translateY(-1px);}
.btn-ghost{
  color:var(--brand-900);font-weight:600;padding:12px 6px;
}
.btn-ghost svg{width:16px;height:16px;transition:transform var(--ease);}
.btn-ghost:hover svg{transform:translateX(4px);}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px;}
.hamburger{
  display:none;width:44px;height:44px;border-radius:14px;background:var(--mist);
  align-items:center;justify-content:center;color:var(--brand-900);
}
.hamburger svg{width:22px;height:22px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,50,41,.45);opacity:0;pointer-events:none;
  transition:opacity var(--ease);z-index:80;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;
  background:var(--paper);z-index:81;transform:translateX(100%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  padding:24px;display:flex;flex-direction:column;gap:20px;
  box-shadow:var(--shadow-3);
}
body.nav-open .drawer{transform:translateX(0);}
body.nav-open .drawer-mask{opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:15px;font-weight:700;color:var(--brand-900);}
.drawer-close{
  width:40px;height:40px;border-radius:12px;background:var(--mist);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-900);
}
.drawer-close svg{width:18px;height:18px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:13px 16px;border-radius:14px;font-size:16px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand-900);font-weight:600;border-color:rgba(31,138,112,.4);background:var(--mist);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}

/* ---------- Breadcrumb ---------- */
.crumb{padding:22px 0 0;}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.crumb-list li{display:flex;align-items:center;gap:8px;}
.crumb-list a{color:var(--ink-2);transition:color var(--ease);}
.crumb-list a:hover{color:var(--brand-900);}
.crumb-sep{color:var(--line);}
.crumb-current{color:var(--ink-3);}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background:var(--mist);
  margin-top:20px;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;top:-40%;right:-8%;
  width:58%;height:180%;transform:rotate(14deg);
  background:var(--grad-brand);opacity:.16;border-radius:80px;
  pointer-events:none;
}
.cat-hero::before{
  content:"";position:absolute;top:24px;right:18%;width:180px;height:180px;
  border-radius:50%;background:radial-gradient(circle at 30% 30%,rgba(255,122,61,.28),rgba(255,122,61,0) 70%);
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;z-index:2;
  min-height:380px;display:flex;align-items:center;
  gap:48px;padding:56px 48px;
}
.cat-hero-copy{max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-900);
  background:#fff;border:1px solid rgba(31,138,112,.28);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-title{
  font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:700;letter-spacing:-.5px;
  color:var(--ink);
}
.hero-sub{
  margin-top:16px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{
  display:flex;flex-direction:column;gap:14px;margin-left:auto;flex:0 0 auto;
}
.stat-pill{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 20px;min-width:220px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.stat-pill:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.stat-num{
  font-size:22px;font-weight:700;color:var(--brand-900);line-height:1;
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:13px;color:var(--ink-2);line-height:1.4;}

/* ---------- Section basics ---------- */
.section{padding:72px 0;}
.section.tight{padding:56px 0;}
.section.mist{background:var(--mist);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:36px;
}
.section-head-left{max-width:640px;}
.section-title{
  font-size:clamp(24px,2.6vw,30px);line-height:1.3;font-weight:700;letter-spacing:-.3px;
}
.section-sub{margin-top:10px;font-size:15px;color:var(--ink-2);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-900);
  white-space:nowrap;transition:color var(--ease);
}
.link-more svg{width:15px;height:15px;transition:transform var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ---------- Layout two col ---------- */
.layout-split{display:flex;gap:32px;align-items:flex-start;}
.toc-col{flex:0 0 300px;position:sticky;top:96px;}
.list-col{flex:1 1 auto;min-width:0;}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
}
.toc-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.toc-title{font-size:15px;font-weight:700;color:var(--ink);}
.toc-count{
  font-size:12px;font-weight:600;color:var(--brand-900);
  background:var(--mist);padding:4px 10px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;font-size:14px;color:var(--ink-2);
  transition:background-color var(--ease),color var(--ease);
}
.toc-link:hover{background:var(--mist);color:var(--brand-900);}
.toc-link .idx{
  font-size:12px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;
  min-width:20px;
}
.toc-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);}
.toc-foot p{font-size:13px;color:var(--ink-3);line-height:1.7;margin-bottom:14px;}

/* ---------- Collection cards ---------- */
.cc-grid{display:flex;flex-wrap:wrap;gap:24px;}
.cc-cell{width:calc(50% - 12px);}
.collection-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.collection-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,138,112,.32);}
.cc-media{
  position:relative;aspect-ratio:16/10;background:#E7EDE9;overflow:hidden;
}
.cc-media img{
  width:100%;height:100%;object-fit:cover;
  opacity:0;transition:opacity 200ms ease,transform 400ms cubic-bezier(.2,.7,.3,1);
}
.cc-media img.is-loaded{opacity:1;}
.collection-card:hover .cc-media img{transform:scale(1.04);}
.cc-chip{
  position:absolute;top:14px;left:14px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(6px);
  color:var(--ink);font-size:13px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
}
.cc-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.cc-title{font-size:18px;font-weight:600;line-height:1.45;color:var(--ink);}
.cc-desc{
  font-size:15px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cc-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:8px;
}
.cc-entries{
  font-size:13px;color:var(--ink-2);background:var(--mist);
  padding:5px 12px;border-radius:var(--r-pill);font-variant-numeric:tabular-nums;
}
.cc-entries strong{color:var(--brand-900);font-weight:700;}
.cc-arrow{
  width:36px;height:36px;border-radius:50%;background:var(--mist);color:var(--brand-900);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  transition:background-color var(--ease),color var(--ease),transform var(--ease);
}
.cc-arrow svg{width:16px;height:16px;}
.collection-card:hover .cc-arrow{background:var(--brand-900);color:#fff;transform:translateX(2px);}

/* ---------- Rank list ---------- */
.rank-list{border-top:1px solid var(--line);}
.rank-item{
  display:flex;align-items:flex-start;gap:24px;
  padding:28px 8px;border-bottom:1px solid var(--line);
  transition:background-color var(--ease),padding-left var(--ease);
}
.rank-item:hover{background:#fff;padding-left:20px;}
.rank-num{
  font-size:30px;font-weight:700;color:var(--brand-700);opacity:.55;
  line-height:1;font-variant-numeric:tabular-nums;min-width:56px;letter-spacing:-1px;
}
.rank-item:hover .rank-num{opacity:1;color:var(--brand-900);}
.rank-body{flex:1 1 auto;min-width:0;}
.rank-title{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;}
.rank-desc{margin-top:8px;font-size:15px;color:var(--ink-2);line-height:1.75;}
.rank-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:12px;
  font-size:13px;color:var(--ink-3);
}
.rank-meta .tag{
  background:var(--mist);color:var(--brand-900);padding:3px 10px;border-radius:var(--r-pill);
  font-weight:600;
}
.rank-arrow{
  width:40px;height:40px;border-radius:50%;background:var(--mist);color:var(--brand-900);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;align-self:center;
  transition:background-color var(--ease),color var(--ease);
}
.rank-arrow svg{width:17px;height:17px;}
.rank-item:hover .rank-arrow{background:var(--brand-900);color:#fff;}

/* ---------- Cross links ---------- */
.cross-grid{display:flex;flex-wrap:wrap;gap:24px;}
.cross-cell{width:calc(50% - 12px);}
.cross-card{
  display:flex;align-items:center;gap:20px;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cross-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(31,138,112,.3);}
.cross-icon{
  width:52px;height:52px;border-radius:16px;background:var(--mist);color:var(--brand-900);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.cross-icon svg{width:24px;height:24px;}
.cross-title{font-size:17px;font-weight:600;}
.cross-desc{margin-top:4px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.cross-card .cc-arrow{margin-left:auto;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item.is-active{border-color:rgba(31,138,112,.4);box-shadow:var(--shadow-2);}
.faq-item .accordion-title{
  position:relative;padding:20px 56px 20px 24px;display:flex;align-items:center;
}
.faq-item .accordion-title::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:0;
  background:var(--brand-700);border-radius:0 3px 3px 0;
  transition:width var(--ease);
}
.faq-item.is-active .accordion-title::before{width:4px;}
.faq-item .accordion-title::after{
  content:"";position:absolute;right:24px;top:50%;
  width:14px;height:14px;margin-top:-7px;
  background:
    linear-gradient(var(--ink-3),var(--ink-3)) center/14px 2px no-repeat,
    linear-gradient(var(--ink-3),var(--ink-3)) center/2px 14px no-repeat;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),background-color var(--ease);
}
.faq-item.is-active .accordion-title::after{
  transform:rotate(45deg);
  background:
    linear-gradient(var(--brand-700),var(--brand-700)) center/14px 2px no-repeat,
    linear-gradient(var(--brand-700),var(--brand-700)) center/2px 14px no-repeat;
}
.faq-item .accordion-content{padding:0 24px 22px 24px;font-size:15.5px;line-height:1.85;color:var(--ink-2);}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(118deg,#0B3229 0%,#0E5B49 55%,#1F8A70 100%);
  padding:56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:var(--shadow-3);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
  opacity:.16;pointer-events:none;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,122,61,.42),rgba(255,122,61,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:600px;}
.cta-title{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;letter-spacing:-.3px;}
.cta-desc{margin-top:12px;font-size:15px;color:rgba(217,231,225,.9);line-height:1.8;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}
.btn-light{
  background:#fff;color:var(--brand-900);box-shadow:var(--shadow-2);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.btn-light.is-active{background:var(--gold);color:#3B2A05;}
.btn-line{
  background:rgba(255,255,255,.08);color:#fff;border:1.5px solid rgba(255,255,255,.55);
}
.btn-line:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);
  background:var(--footer-bg);color:#fff;font-size:14px;
  padding:12px 22px;border-radius:var(--r-pill);z-index:120;
  box-shadow:var(--shadow-3);opacity:0;pointer-events:none;
  transition:opacity var(--ease),transform var(--ease);
}
.toast.is-show{opacity:1;transform:translate(-50%,0);}

/* ---------- Footer ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-text);margin-top:24px;}
.footer-grid{
  display:flex;flex-wrap:wrap;gap:40px;
  padding:64px 0 48px;
}
.footer-brand{flex:1 1 300px;min-width:260px;}
.footer-brand .brand-name{color:#fff;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(217,231,225,.78);max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.social-btn{
  width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.08);
  display:inline-flex;align-items:center;justify-content:center;color:var(--footer-text);
  transition:background-color var(--ease),color var(--ease),transform var(--ease);
}
.social-btn svg{width:17px;height:17px;}
.social-btn:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.footer-col{flex:1 1 180px;min-width:160px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:8px;position:relative;padding-bottom:12px;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--brand-400);
}
.footer-links{display:flex;flex-direction:column;gap:10px;margin-top:14px;}
.footer-links a{
  font-size:14px;color:rgba(217,231,225,.82);transition:color var(--ease),transform var(--ease);
}
.footer-links a:hover{color:var(--brand-400);transform:translateX(2px);}
.footer-form{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.footer-form input{
  height:44px;border-radius:14px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:14px;
  outline:none;transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-form input::placeholder{color:rgba(217,231,225,.55);}
.footer-form input:focus{border-color:var(--brand-400);box-shadow:0 0 0 3px rgba(95,203,168,.18);}
.footer-form .btn{padding:11px 20px;font-size:14px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(217,231,225,.62);
}
.footer-bottom a{color:rgba(217,231,225,.78);transition:color var(--ease);}
.footer-bottom a:hover{color:var(--brand-400);}
.footer-bottom .sep{margin:0 8px;opacity:.4;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-actions .search-pill{display:none;}
  .nav-actions .nav-login{display:none;}
  .nav-actions .btn-primary{display:none;}
  .hamburger{display:inline-flex;}
  .cat-hero-inner{flex-direction:column;align-items:flex-start;gap:32px;padding:44px 32px;}
  .hero-stats{flex-direction:row;flex-wrap:wrap;margin-left:0;width:100%;}
  .stat-pill{flex:1 1 180px;min-width:0;}
  .layout-split{flex-direction:column;}
  .toc-col{position:static;flex:1 1 auto;width:100%;}
  .toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:44px 32px;gap:28px;}
}
@media (max-width:819px){
  .cc-cell{width:100%;}
  .cross-cell{width:100%;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .nav-inner{height:64px;gap:12px;}
  .brand-name{font-size:14px;}
  .brand-mark{width:28px;height:28px;}
  .section{padding:48px 0;}
  .section.tight{padding:40px 0;}
  .cat-hero{border-radius:24px;}
  .cat-hero-inner{padding:36px 22px;min-height:0;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .toc-list{grid-template-columns:1fr;}
  .rank-item{gap:16px;padding:22px 0;flex-wrap:wrap;}
  .rank-item:hover{padding-left:0;}
  .rank-num{font-size:24px;min-width:40px;}
  .rank-arrow{display:none;}
  .cross-card{padding:20px;gap:14px;align-items:flex-start;flex-wrap:wrap;}
  .cross-card .cc-arrow{margin-left:0;}
  .cta-card{padding:32px 22px;border-radius:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{padding:44px 0 32px;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .toast{width:calc(100% - 32px);text-align:center;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .collection-card:hover .cc-media img{transform:none;}
  .collection-card:hover{transform:none;}
}

/* roulang page: article */
:root{
  --green-900:#0B3229;
  --green-800:#0E5B49;
  --green-600:#1F8A70;
  --green-400:#5FCBA8;
  --orange:#FF7A3D;
  --gold:#FFC24B;
  --ink:#10201B;
  --text-2:#4A5B55;
  --text-3:#7C8B85;
  --line:#E6E0D6;
  --paper:#FBF8F3;
  --card:#FFFFFF;
  --mint:#F2F6F3;
  --brand-gradient:linear-gradient(118deg,#0E5B49 0%,#1F8A70 48%,#5FCBA8 100%);
  --accent-gradient:linear-gradient(100deg,#1F8A70 0%,#2FA37F 60%,#FF7A3D 130%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-block:32px;
  --shadow-1:0 1px 2px rgba(16,32,27,.04),0 10px 28px -14px rgba(16,32,27,.16);
  --shadow-2:0 22px 44px -20px rgba(14,91,73,.34);
  --shadow-3:0 30px 60px -24px rgba(11,50,41,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms var(--ease);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.85;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
input,textarea,select{font:inherit;color:inherit}
::selection{background:rgba(95,203,168,.35)}
:focus-visible{outline:2px solid var(--green-600);outline-offset:2px;box-shadow:0 0 0 3px rgba(31,138,112,.22);border-radius:8px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,248,243,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 12px 30px -20px rgba(16,32,27,.4)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:50%;
  background:var(--brand-gradient);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(14,91,73,.7);
  flex-shrink:0;
}
.brand-mark svg{width:18px;height:18px}
.brand-name{
  font-size:16px;font-weight:700;letter-spacing:-.2px;color:var(--green-900);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color var(--t);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;
  background:var(--accent-gradient);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--green-600)}
.nav-link:hover::after{transform:scaleX(.6)}
.nav-link.is-active{color:var(--green-800);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-pill{
  display:flex;align-items:center;gap:8px;height:40px;width:240px;
  padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
  transition:width var(--t),border-color var(--t),box-shadow var(--t);
}
.search-pill:focus-within{width:300px;border-color:var(--green-600);box-shadow:0 0 0 3px rgba(31,138,112,.16)}
.search-pill svg{width:16px;height:16px;color:var(--text-3);flex-shrink:0}
.search-pill input{
  width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);
}
.search-pill input::placeholder{color:var(--text-3)}
.header-login{font-size:15px;color:var(--text-2);padding:10px 6px;transition:color var(--t)}
.header-login:hover{color:var(--green-600)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),filter var(--t);
  white-space:nowrap;
}
.btn-primary{
  color:#fff;background:var(--accent-gradient);
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-secondary{
  background:#fff;color:var(--green-800);border:1.5px solid var(--green-800);
}
.btn-secondary:hover{background:rgba(31,138,112,.08);transform:translateY(-2px)}
.btn-ghost{color:var(--green-800);padding:0 4px;min-height:auto;gap:6px}
.btn-ghost svg{transition:transform var(--t)}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-icon{
  width:40px;height:40px;min-height:40px;padding:0;border-radius:50%;
  background:var(--mint);color:var(--green-800);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color var(--t),color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-icon:hover{background:var(--green-800);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-icon svg{width:18px;height:18px}

.burger{
  display:none;width:44px;height:44px;border-radius:14px;background:var(--mint);
  align-items:center;justify-content:center;color:var(--green-800);
  transition:background-color var(--t),color var(--t);
}
.burger:hover{background:var(--green-800);color:#fff}
.burger svg{width:20px;height:20px}

.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:120;
  background:var(--paper);box-shadow:var(--shadow-3);
  transform:translateX(100%);transition:transform 260ms var(--ease);
  display:flex;flex-direction:column;padding:22px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:40px;height:40px;border-radius:50%;background:var(--mint);display:inline-flex;align-items:center;justify-content:center;color:var(--green-800)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
.drawer-nav a{
  padding:13px 14px;border-radius:14px;font-size:16px;color:var(--text-2);
  transition:background-color var(--t),color var(--t);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--mint);color:var(--green-800);font-weight:600}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.drawer-overlay{
  position:fixed;inset:0;background:rgba(11,50,41,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}

/* ---------- breadcrumb ---------- */
.crumbs{padding:26px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"›";color:#B9C4BE}
.crumbs a{color:var(--text-2);transition:color var(--t)}
.crumbs a:hover{color:var(--green-600)}
.crumbs .current{color:var(--text-3);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:26px 0 30px}
.head-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;padding:5px 13px;border-radius:999px;
  background:rgba(31,138,112,.12);color:var(--green-800);
}
.chip-warm{background:rgba(255,122,61,.14);color:#C2542A}
.chip-solid{background:#fff;color:var(--ink);box-shadow:var(--shadow-1)}
.meta-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--text-3);
  background:var(--mint);border-radius:999px;padding:5px 13px;
}
.meta-badge svg{width:14px;height:14px}
.article-head h1{
  font-size:clamp(28px,3.6vw,34px);line-height:1.3;font-weight:700;
  letter-spacing:-.5px;color:var(--ink);max-width:920px;
}
.article-lead{
  position:relative;margin-top:18px;max-width:820px;
  padding-left:16px;font-size:17px;line-height:1.8;color:var(--text-2);
}
.article-lead::before{
  content:"";position:absolute;left:0;top:.32em;bottom:.32em;width:3px;border-radius:3px;
  background:var(--accent-gradient);
}

/* ---------- cover ---------- */
.article-cover{padding:0 0 8px}
.cover-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/7;background:#EDF2EE;
  box-shadow:var(--shadow-1);
}
.cover-frame img{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 260ms var(--ease)}
.cover-frame img.is-loaded{opacity:1}
.cover-caption{
  position:absolute;left:20px;bottom:20px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--green-900);
  background:rgba(255,255,255,.92);border-radius:999px;padding:7px 16px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  box-shadow:var(--shadow-1);
}

/* ---------- article layout ---------- */
.article-section{padding:40px 0 24px}
.article-layout{--cell-gap:28px}
.article-layout>.cell{padding-left:14px;padding-right:14px}
.article-main{max-width:760px}

.article-body{font-size:17px;line-height:1.9;color:var(--ink)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;font-size:26px;line-height:1.35;font-weight:700;
  margin:2em 0 .6em;padding-left:16px;color:var(--green-900);
  scroll-margin-top:100px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;
  background:var(--accent-gradient);
}
.article-body h2::after{
  content:"";position:absolute;left:16px;bottom:-10px;width:36px;height:3px;border-radius:3px;
  background:rgba(95,203,168,.55);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:1.7em 0 .55em;color:var(--green-800)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin:.45em 0;line-height:1.8}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;
  background:var(--green-400);
}
.article-body ol{counter-reset:item}
.article-body ol li{position:relative;padding-left:26px;margin:.5em 0;line-height:1.8}
.article-body ol li::before{
  counter-increment:item;content:counter(item);
  position:absolute;left:0;top:0;font-weight:700;color:var(--green-600);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.6em 0;padding:20px 24px;background:var(--mint);
  border-left:4px solid var(--green-600);border-radius:0 16px 16px 0;
  color:var(--text-2);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:12px 0;width:100%;height:auto}
.article-body a{color:var(--green-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--green-800)}
.article-body strong{font-weight:700;color:var(--green-900)}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.5em 0;
  font-size:15.5px;border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.article-body thead th{background:var(--mint);color:var(--green-900);font-weight:600}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}
.article-body pre{
  background:var(--green-900);color:#D9E7E1;border-radius:16px;padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
}
.article-body code{background:var(--mint);border-radius:6px;padding:2px 6px;font-size:.92em}

/* ---------- interaction bar ---------- */
.article-actions{
  margin:44px 0 0;padding:22px 24px;border-radius:var(--r-lg);
  background:var(--mint);border:1px solid rgba(31,138,112,.14);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
}
.article-actions .label{font-size:14px;color:var(--text-2);margin-right:6px}
.pill-btn{
  display:inline-flex;align-items:center;gap:7px;
  min-height:40px;padding:0 18px;border-radius:999px;
  background:#fff;color:var(--green-800);font-size:14px;font-weight:600;
  border:1px solid rgba(31,138,112,.22);
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t);
}
.pill-btn svg{width:16px;height:16px}
.pill-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);background:var(--green-800);color:#fff;border-color:var(--green-800)}
.pill-btn.is-active{background:var(--gold);color:#5A3A00;border-color:transparent}
.pill-btn.is-active:hover{background:var(--gold);color:#5A3A00}

/* ---------- sidebar ---------- */
.side-panel{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--green-900);
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-title svg{width:16px;height:16px;color:var(--green-600)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--text-2);
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:color var(--t),background-color var(--t),border-color var(--t);
}
.toc-list a:hover{color:var(--green-800);background:var(--mint);border-left-color:var(--green-400)}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--text-2);padding:9px 10px;border-radius:10px;
  transition:background-color var(--t),color var(--t);
}
.side-links a:hover{background:var(--mint);color:var(--green-800)}
.side-links svg{width:14px;height:14px;color:var(--green-400);flex-shrink:0}
.toc-toggle{
  display:none;width:100%;align-items:center;justify-content:space-between;gap:10px;
  font-size:15px;font-weight:600;color:var(--green-900);
  padding:14px 18px;border-radius:var(--r-sm);background:var(--mint);
}
.toc-toggle svg{width:16px;height:16px;transition:transform var(--t)}
.toc-toggle[aria-expanded="true"] svg{transform:rotate(180deg)}

/* ---------- related ---------- */
.related{padding:72px 0 84px;background:var(--mint);border-top:1px solid var(--line)}
.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:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:700;color:var(--green-900)}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-2)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border-radius:var(--r-lg);
  overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,138,112,.35)}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDF2EE}
.post-thumb img{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 240ms var(--ease),transform 400ms var(--ease)}
.post-thumb img.is-loaded{opacity:1}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-chip{
  position:absolute;left:14px;top:14px;
  font-size:12.5px;font-weight:600;color:var(--green-900);
  background:rgba(255,255,255,.92);border-radius:999px;padding:4px 12px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-desc{font-size:15px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:8px}
.post-time{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3)}
.post-time svg{width:13px;height:13px}
.round-arrow{
  width:34px;height:34px;border-radius:50%;background:var(--mint);color:var(--green-800);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:background-color var(--t),color var(--t),transform var(--t);
}
.round-arrow svg{width:15px;height:15px}
.post-card:hover .round-arrow{background:var(--green-800);color:#fff;transform:translateX(2px)}

/* ---------- empty ---------- */
.empty-state{
  border:2px dashed #C9D6D0;border-radius:var(--r-md);
  padding:56px 24px;text-align:center;background:#fff;
}
.empty-state svg{width:48px;height:48px;color:rgba(31,138,112,.28);margin:0 auto 16px}
.empty-state h2{font-size:20px;font-weight:700;color:var(--green-900);margin-bottom:8px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:22px}

/* ---------- cta ---------- */
.share-cta{padding:0 0 88px}
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-block);
  padding:52px 56px;color:#fff;
  background:linear-gradient(118deg,#0B3229 0%,#0E5B49 46%,#1F8A70 100%);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-3);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(95,203,168,.34),transparent 66%);
  pointer-events:none;
}
.cta-card::before{
  content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.14;pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:560px}
.cta-text h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;margin-bottom:10px}
.cta-text p{font-size:15.5px;line-height:1.8;color:#D9E7E1}
.cta-btns{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
.cta-card .btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.cta-card .btn-secondary:hover{background:rgba(255,255,255,.14);border-color:#fff}
.cta-card .btn-primary{background:#fff;color:var(--green-900)}
.cta-card .btn-primary:hover{filter:brightness(1.02)}

/* ---------- footer ---------- */
.site-footer{background:var(--green-900);color:#D9E7E1;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:44px;padding-bottom:48px}
.footer-brand .brand-name{color:#fff;font-size:17px}
.footer-brand .brand-mark{box-shadow:0 8px 22px -10px rgba(0,0,0,.6)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#A9C4BA;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.social-btn{
  width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);
  display:inline-flex;align-items:center;justify-content:center;color:#D9E7E1;
  transition:background-color var(--t),color var(--t),transform var(--t);
}
.social-btn svg{width:17px;height:17px}
.social-btn:hover{background:var(--green-400);color:var(--green-900);transform:translateY(-2px)}
.footer-col h4{
  position:relative;font-size:14px;font-weight:700;color:#fff;letter-spacing:.4px;
  padding-bottom:10px;margin-bottom:16px;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:22px;height:2px;border-radius:2px;
  background:var(--green-400);
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  display:inline-block;font-size:14px;color:#D9E7E1;
  transition:color var(--t),transform var(--t);
}
.footer-links a:hover{color:var(--green-400);transform:translateX(2px)}
.footer-sub p{font-size:14px;line-height:1.8;color:#A9C4BA;margin-bottom:14px}
.footer-form{display:flex;gap:10px;flex-wrap:wrap}
.footer-form input{
  flex:1 1 150px;min-height:44px;padding:0 16px;border-radius:14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:#fff;font-size:14px;outline:none;transition:border-color var(--t),box-shadow var(--t);
}
.footer-form input::placeholder{color:#8FAFA4}
.footer-form input:focus{border-color:var(--green-400);box-shadow:0 0 0 3px rgba(95,203,168,.22)}
.footer-form .btn-primary{background:var(--accent-gradient);color:#fff;min-height:44px;padding:0 22px;font-size:14px}
.footer-contact{margin-top:18px;font-size:13.5px;color:#8FAFA4;line-height:1.9}
.footer-contact a{color:#D9E7E1;border-bottom:1px solid rgba(217,231,225,.28);transition:color var(--t)}
.footer-contact a:hover{color:var(--green-400)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:#8FAFA4;
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:#A9C4BA;transition:color var(--t)}
.footer-bottom a:hover{color:var(--green-400)}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);
  background:var(--green-900);color:#fff;font-size:14px;font-weight:500;
  padding:12px 26px;border-radius:999px;box-shadow:var(--shadow-3);
  opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
  z-index:200;pointer-events:none;
}
.toast.is-show{opacity:1;visibility:visible;transform:translate(-50%,0)}

/* ---------- foundation overrides ---------- */
.button,.button.primary{background:var(--accent-gradient);border-radius:999px;color:#fff;font-weight:600}
.menu a{color:inherit}
.accordion{border:0;background:transparent}
.grid-padding-x>.cell{padding-left:14px;padding-right:14px}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .header-inner{gap:20px}
  .nav-links{gap:22px}
  .search-pill{width:200px}
  .search-pill:focus-within{width:240px}
}
@media screen and (max-width:1023px){
  .nav-links,.search-pill,.header-login,.header-cta{display:none}
  .burger{display:inline-flex}
  .header-inner{min-height:64px}
  .brand-name{font-size:15px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .side-panel{position:static;margin-top:34px}
  .toc-toggle{display:flex}
  .side-card.toc-card{padding:0;border:0;box-shadow:none;background:transparent}
  .side-card.toc-card .side-title{display:none}
  .side-card.toc-card .toc-body{display:none;padding:14px 8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);margin-top:10px;box-shadow:var(--shadow-1)}
  .side-card.toc-card .toc-body.is-open{display:block}
  .article-main{max-width:none}
  .cover-frame{aspect-ratio:16/9}
}
@media screen and (max-width:767px){
  .container{padding:0 16px}
  .crumbs{padding-top:20px}
  .crumbs .current{max-width:42vw}
  .article-head{padding:20px 0 24px}
  .article-lead{font-size:15.5px;padding-left:14px}
  .article-section{padding:28px 0 16px}
  .article-layout>.cell{padding-left:0;padding-right:0}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:22px;margin-top:1.8em}
  .article-body h3{font-size:18.5px}
  .cover-frame{aspect-ratio:16/10;border-radius:20px}
  .cover-caption{left:14px;bottom:14px;font-size:12px;padding:6px 12px}
  .related{padding:52px 0 60px}
  .related-grid{grid-template-columns:1fr}
  .cta-card{padding:34px 24px;border-radius:24px}
  .cta-btns{width:100%}
  .cta-btns .btn{flex:1 1 auto}
  .share-cta{padding-bottom:60px}
  .article-actions{padding:18px 16px}
  .article-actions .label{width:100%;margin:0 0 4px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:519px){
  .brand-name{font-size:14px}
  .article-head h1{font-size:24px;line-height:1.35}
  .head-meta{gap:8px}
  .empty-state{padding:40px 18px}
  .pill-btn{padding:0 14px;font-size:13px}
  .post-body{padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .post-card:hover,.btn-primary:hover,.pill-btn:hover{transform:none}
  .post-card:hover .post-thumb img{transform:none}
}

/* roulang page: category2 */
:root{
  --green-900:#0B3229;
  --green-800:#0E5B49;
  --green-700:#14705A;
  --green-500:#1F8A70;
  --green-300:#5FCBA8;
  --orange:#FF7A3D;
  --gold:#FFC24B;
  --ink:#10201B;
  --ink-2:#4A5B55;
  --ink-3:#7C8B85;
  --line:#E6E0D6;
  --line-soft:#EDE7DD;
  --paper:#FBF8F3;
  --card:#FFFFFF;
  --soft:#F2F6F3;
  --soft-line:#DDE9E3;
  --r-xl:32px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:16px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,27,.04),0 10px 28px -14px rgba(16,32,27,.16);
  --shadow-2:0 22px 44px -20px rgba(14,91,73,.34);
  --shadow-3:0 30px 60px -24px rgba(11,50,41,.35);
  --grad-brand:linear-gradient(118deg,#0E5B49 0%,#1F8A70 48%,#5FCBA8 100%);
  --grad-cta:linear-gradient(100deg,#1F8A70 0%,#2FA37F 60%,#FF7A3D 130%);
  --t:200ms cubic-bezier(.2,.7,.3,1);
  --font: "PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);font-size:17px;line-height:1.85;color:var(--ink);
  background:var(--paper);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input{font:inherit}
::selection{background:rgba(95,203,168,.35)}
:focus-visible{outline:2px solid var(--green-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(31,138,112,.22);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,248,243,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{box-shadow:0 10px 26px -18px rgba(11,50,41,.5);background:rgba(251,248,243,.96)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 32px;
  box-shadow:0 8px 18px -10px rgba(14,91,73,.7);
}
.brand-mark svg{width:19px;height:19px}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.2px;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:26px 0;
  transition:color var(--t);white-space:nowrap;
}
.nav-link:hover{color:var(--green-700)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;border-radius:2px;
  background:var(--green-500);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link.is-active{color:var(--green-700);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  width:240px;transition:width var(--t),border-color var(--t),box-shadow var(--t);
}
.nav-search:focus-within{width:300px;border-color:var(--green-300);box-shadow:0 0 0 3px rgba(31,138,112,.14)}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex:0 0 16px}
.nav-search input{
  width:100%;border:none;background:transparent;font-size:14px;color:var(--ink);outline:none;
}
.nav-search input::placeholder{color:var(--ink-3)}
.ghost-login{font-size:14px;font-weight:600;color:var(--ink-2);padding:11px 6px;transition:color var(--t);white-space:nowrap}
.ghost-login:hover{color:var(--green-700)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),filter var(--t);
}
.btn svg{width:16px;height:16px}
.btn-primary{
  background:var(--grad-cta);color:#fff;box-shadow:var(--shadow-1);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);filter:brightness(1.03)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-secondary{
  background:#fff;color:var(--green-700);border:1.5px solid var(--green-700);
}
.btn-secondary:hover{background:rgba(31,138,112,.08);transform:translateY(-2px)}
.btn-ghost{color:var(--green-700);padding:12px 4px;min-height:44px}
.btn-ghost .arrow{transition:transform var(--t)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{min-height:40px;padding:10px 20px;font-size:14px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;background:var(--soft);color:var(--green-800);
  display:inline-flex;align-items:center;justify-content:center;transition:background var(--t),color var(--t),transform var(--t);
}
.icon-btn:hover{background:var(--green-700);color:#fff;transform:translateY(-1px)}
.icon-btn svg{width:20px;height:20px}
.nav-toggle{display:none}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,50,41,.45);z-index:70;
  opacity:0;pointer-events:none;transition:opacity var(--t);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:340px;z-index:80;
  background:var(--paper);box-shadow:var(--shadow-3);
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  padding:22px 22px 32px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:50%;background:var(--soft);display:inline-flex;align-items:center;justify-content:center;color:var(--green-800)}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  padding:14px 12px;border-radius:14px;font-size:16px;font-weight:600;color:var(--ink-2);
  transition:background var(--t),color var(--t);
}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--soft);color:var(--green-700)}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;isolation:isolate;color:#fff;
  min-height:420px;display:flex;align-items:center;
  padding:72px 0 64px;
}
.cat-hero-bg{
  position:absolute;inset:0;z-index:-3;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;transform:scale(1.02);
}
.cat-hero-veil{
  position:absolute;inset:0;z-index:-2;
  background:linear-gradient(118deg,rgba(11,50,41,.94) 0%,rgba(14,91,73,.88) 46%,rgba(31,138,112,.66) 100%);
}
.cat-hero-veil::after{
  content:"";position:absolute;right:-80px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,61,.34) 0%,rgba(255,122,61,0) 68%);
}
.cat-hero-inner{position:relative;max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.4px;
  padding:7px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);color:#EAF6F1;margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--green-300)}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.2;letter-spacing:-.5px;color:#fff;font-weight:700;
}
.cat-hero-sub{margin-top:16px;font-size:17px;color:#D5E9E1;max-width:620px}
.filter-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:#D8ECE5;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.26);transition:all var(--t);min-height:40px;
}
.chip:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px)}
.chip.is-active{background:#fff;color:var(--green-800);border-color:#fff;font-weight:600;box-shadow:0 12px 24px -16px rgba(0,0,0,.5)}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stat-chip{
  display:flex;align-items:center;gap:10px;padding:10px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
}
.stat-chip b{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;color:#fff}
.stat-chip span{font-size:13px;color:#CFE6DE}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section--soft{background:var(--soft)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,2.6vw,30px);letter-spacing:-.3px}
.section-head h2::before{
  content:"";display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--orange);margin-right:12px;vertical-align:middle;
}
.section-sub{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:640px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--green-700);
  min-height:44px;transition:gap var(--t),color var(--t);
}
.link-more:hover{gap:12px;color:var(--green-500)}

/* ---------- timeline / stage ---------- */
.stage-list{position:relative;padding-left:0}
.stage-list::before{
  content:"";position:absolute;left:23px;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(95,203,168,.9),rgba(31,138,112,.45) 55%,rgba(230,224,214,.7));
}
.stage-item{position:relative;padding-left:76px;margin-bottom:28px}
.stage-item:last-child{margin-bottom:0}
.stage-item::before{
  content:"";position:absolute;left:15px;top:38px;width:18px;height:18px;border-radius:50%;
  background:#fff;border:3px solid var(--green-500);box-shadow:0 0 0 5px rgba(95,203,168,.16);
  transition:border-color var(--t),box-shadow var(--t);
}
.stage-item:hover::before{border-color:var(--orange);box-shadow:0 0 0 6px rgba(255,122,61,.16)}
.stage-card{
  display:grid;grid-template-columns:264px 1fr;gap:26px;align-items:stretch;
  background:var(--card);border-radius:var(--r-lg);padding:16px;box-shadow:var(--shadow-1);
  border:1px solid rgba(230,224,214,.85);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  position:relative;
}
.stage-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,138,112,.3)}
.stage-media{
  position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--soft);aspect-ratio:4/3;
}
.stage-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.stage-card:hover .stage-media img{transform:scale(1.04)}
.stage-step{
  position:absolute;left:12px;top:12px;z-index:2;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);color:var(--green-800);font-size:12px;font-weight:700;
  letter-spacing:.5px;font-variant-numeric:tabular-nums;backdrop-filter:blur(6px);
}
.stage-body{display:flex;flex-direction:column;gap:10px;padding:10px 56px 10px 0}
.kicker{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--green-700);
  background:rgba(31,138,112,.1);padding:5px 12px;border-radius:var(--r-pill);width:fit-content;
}
.stage-body h3{font-size:19px;line-height:1.45;font-weight:600;transition:color var(--t)}
.stage-card:hover .stage-body h3{color:var(--green-700)}
.stage-body p{font-size:15px;color:var(--ink-2);line-height:1.8}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:auto;padding-top:6px}
.meta-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--ink-2);
  background:var(--soft);border-radius:var(--r-pill);padding:5px 12px;
}
.meta-pill b{color:var(--green-800);font-variant-numeric:tabular-nums;font-weight:700}
.meta-time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.arrow-btn{
  position:absolute;right:20px;bottom:20px;width:40px;height:40px;border-radius:50%;
  background:var(--soft);color:var(--green-800);display:inline-flex;align-items:center;justify-content:center;
  transition:background var(--t),color var(--t),transform var(--t);
}
.arrow-btn svg{width:16px;height:16px}
.stage-card:hover .arrow-btn{background:var(--green-700);color:#fff;transform:translateX(2px)}

/* ---------- picks ---------- */
.pick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.pick-card{
  background:var(--soft);border:1px solid var(--soft-line);border-radius:20px;padding:28px 30px;
  display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t);
}
.pick-card::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(95,203,168,.25),rgba(95,203,168,0) 70%);
  transition:transform var(--t);
}
.pick-card:hover{transform:translateY(-4px);background:#fff;box-shadow:var(--shadow-2);border-color:rgba(31,138,112,.28)}
.pick-card:hover::after{transform:scale(1.15)}
.pick-num{
  font-size:32px;font-weight:700;color:rgba(14,91,73,.16);font-variant-numeric:tabular-nums;line-height:1;
}
.pick-card h3{font-size:18px;font-weight:600;line-height:1.5}
.pick-card p{font-size:15px;color:var(--ink-2);line-height:1.8}
.pick-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:6px}
.pick-tag{font-size:13px;font-weight:600;color:var(--green-700)}
.pick-arrow{font-size:14px;font-weight:600;color:var(--green-700);display:inline-flex;align-items:center;gap:6px}
.pick-card:hover .pick-arrow{gap:10px}

/* ---------- rail ---------- */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:24px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--soft-line);border-radius:999px}
.rail-card{
  flex:0 0 252px;scroll-snap-align:start;background:var(--card);border-radius:var(--r-md);
  border:1px solid var(--line-soft);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);display:flex;flex-direction:column;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,138,112,.28)}
.rail-media{aspect-ratio:16/10;background:var(--soft);overflow:hidden}
.rail-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.rail-card:hover .rail-media img{transform:scale(1.05)}
.rail-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.rail-body h3{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-body p{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);padding-top:8px}
.rail-nav{
  position:absolute;top:38%;width:44px;height:44px;border-radius:50%;background:#fff;color:var(--green-800);
  box-shadow:var(--shadow-2);display:inline-flex;align-items:center;justify-content:center;z-index:3;
  transition:background var(--t),color var(--t),transform var(--t);
}
.rail-nav:hover{background:var(--green-700);color:#fff;transform:scale(1.05)}
.rail-nav.prev{left:-18px}
.rail-nav.next{right:-18px}
.rail-nav svg{width:18px;height:18px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-accordion{border:none;background:transparent;margin:0}
.faq-accordion .accordion-item{
  background:#fff;border:none;border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden;
  box-shadow:var(--shadow-1);transition:box-shadow var(--t),transform var(--t);
}
.faq-accordion .accordion-item:hover{box-shadow:0 16px 34px -22px rgba(14,91,73,.4)}
.faq-accordion .accordion-item.is-active{box-shadow:inset 4px 0 0 var(--green-500),var(--shadow-1)}
.faq-accordion .accordion-title{
  border:none;background:#fff;padding:20px 60px 20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  line-height:1.6;transition:color var(--t);
}
.faq-accordion .accordion-title::before{content:none;display:none}
.faq-accordion .accordion-title::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--green-500);line-height:1;
  transition:transform 220ms cubic-bezier(.2,.7,.3,1),color var(--t);
}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--green-700)}
.faq-accordion .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(45deg);color:var(--orange)}
.faq-accordion .accordion-content{
  border:none;background:#fff;padding:0 24px 22px;font-size:16px;color:var(--ink-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);color:#fff;
  background:linear-gradient(118deg,#0B3229 0%,#0E5B49 42%,#1F8A70 100%);
  padding:56px;display:grid;grid-template-columns:1.25fr .75fr;gap:32px;align-items:center;
  box-shadow:var(--shadow-3);
}
.cta-bg{
  position:absolute;right:0;top:0;bottom:0;width:46%;
  background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;
  opacity:.24;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 55%);mask-image:linear-gradient(to right,transparent,#000 55%);
}
.cta-card > *{position:relative;z-index:1}
.cta-card h2{font-size:clamp(24px,2.6vw,30px);color:#fff}
.cta-card p{margin-top:12px;font-size:16px;color:#CFE6DE;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.btn-light{background:#fff;color:var(--green-800)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn.is-on{background:var(--grad-cta);color:#fff;border-color:transparent}
.btn.is-on svg{fill:var(--gold);stroke:var(--gold)}

/* toast */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);z-index:120;
  background:var(--green-900);color:#EAF6F1;font-size:14px;font-weight:500;
  padding:12px 24px;border-radius:var(--r-pill);box-shadow:var(--shadow-3);
  opacity:0;pointer-events:none;transition:opacity var(--t),transform var(--t);
}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}

/* ---------- footer ---------- */
.site-footer{background:var(--green-900);color:#D9E7E1;padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.2fr;gap:48px}
.footer-brand .brand-name{color:#fff;font-size:16px}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:#B9D2C9;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.social-btn{
  width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);
  display:inline-flex;align-items:center;justify-content:center;color:#D9E7E1;
  transition:background var(--t),color var(--t),transform var(--t);
}
.social-btn:hover{background:var(--green-500);color:#fff;transform:translateY(-2px)}
.social-btn svg{width:18px;height:18px}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;position:relative;padding-bottom:12px;margin-bottom:18px;
}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;border-radius:2px;background:var(--green-300)}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:#D9E7E1;transition:color var(--t),transform var(--t);display:inline-block}
.footer-links a:hover{color:var(--green-300);transform:translateX(2px)}
.footer-note{font-size:14px;color:#B9D2C9;line-height:1.8;margin-bottom:16px}
.footer-form{display:flex;gap:8px;flex-wrap:wrap}
.footer-form input{
  flex:1 1 160px;min-height:44px;padding:12px 16px;border-radius:14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:14px;outline:none;transition:border-color var(--t),box-shadow var(--t);
}
.footer-form input::placeholder{color:#8FAEA4}
.footer-form input:focus{border-color:var(--green-300);box-shadow:0 0 0 3px rgba(95,203,168,.2)}
.footer-site{margin-top:16px;font-size:13px;color:#8FAEA4}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#9EBAB0;
}

/* image fade */
img[data-fade]{opacity:0;transition:opacity 200ms cubic-bezier(.2,.7,.3,1)}
img[data-fade].is-loaded{opacity:1}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .rail-nav.prev{left:-8px}
  .rail-nav.next{right:-8px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-search{display:none}
  .ghost-login{display:none}
  .header-actions .btn-primary{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px;gap:12px}
  .section{padding:68px 0}
  .cat-hero{min-height:auto;padding:56px 0 48px}
  .stage-card{grid-template-columns:200px 1fr;gap:18px}
  .pick-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:44px;gap:24px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .rail-nav{display:none}
  .rail-card{flex:0 0 236px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .brand-name{font-size:14px}
  .section{padding:52px 0}
  .section-head{margin-bottom:28px}
  .stage-list::before{left:11px}
  .stage-item{padding-left:38px}
  .stage-item::before{left:3px;top:28px;width:16px;height:16px}
  .stage-card{grid-template-columns:1fr;padding:14px}
  .stage-media{aspect-ratio:16/10}
  .stage-body{padding:4px 8px 10px}
  .arrow-btn{position:static;margin-top:6px;align-self:flex-start}
  .pick-card{padding:22px}
  .cta-card{padding:32px 24px;border-radius:var(--r-lg)}
  .hero-stats{gap:8px}
  .stat-chip{padding:8px 14px}
  .filter-chips{gap:8px}
  .chip{padding:8px 14px;font-size:13px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .toast{left:16px;right:16px;bottom:20px;transform:translateY(20px);text-align:center}
  .toast.is-visible{transform:translateY(0)}
}
@media (max-width:479px){
  .cat-hero h1{font-size:28px}
  .brand-name{font-size:13px}
  .stage-body h3{font-size:17px}
  .rail-card{flex:0 0 78vw}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .stage-card:hover,.rail-card:hover,.pick-card:hover,.btn-primary:hover{transform:none}
  .stage-card:hover .stage-media img,.rail-card:hover .rail-media img{transform:none}
}