/* roulang page: index */
/* ================= 设计令牌 ================= */
:root{
  --ink-900:#080C0F;--ink-850:#0B1114;--ink-700:#121A1F;
  --line-d:rgba(233,241,239,.10);
  --tx-hi:#E9F1EF;--tx-mid:#A7B6B4;--tx-dim:#7E8D8B;
  --brand-900:#0E3B3F;--brand:#17A398;--brand-2:#4FC4B8;
  --coral:#FF6B4A;--coral-2:#FF7F63;
  --amber:#FFC24B;--amber-bg:rgba(255,194,75,.14);
  --ok:#2FA37A;--warn:#E8A33D;--err:#D9534F;
  --lt-bg:#F5F7F6;--lt-tx:#16211F;--lt-mid:#5A6B69;--lt-line:rgba(16,52,58,.10);
  --grad:linear-gradient(120deg,#0E3B3F 0%,#17A398 100%);
  --r-lg:22px;--r-md:16px;--r-sm:12px;--r-pill:999px;
  --sh-d:0 18px 44px rgba(0,0,0,.45);
  --sh-l:0 12px 32px rgba(16,52,58,.10);
  --e:cubic-bezier(.2,.7,.3,1);--dur:220ms;
  --maxw:1280px;
  --num:"Inter","Barlow",system-ui,sans-serif;
}
/* ================= 基础 ================= */
*,*::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","Microsoft YaHei","Source Han Sans SC",sans-serif;font-size:16px;line-height:1.85;color:var(--tx-hi);background:var(--ink-900);overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
h1{font-size:44px;line-height:1.24;font-weight:800;letter-spacing:0}
h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:0}
h3{font-size:19px;line-height:1.5;font-weight:600;letter-spacing:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--e)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
svg{display:block}
time,.num{font-family:var(--num);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--light{--ink-700:#FFFFFF;--tx-hi:#16211F;--tx-mid:#5A6B69;--tx-dim:#6E7E7C;--line-d:rgba(16,52,58,.10);background:var(--lt-bg);color:var(--lt-tx)}
.section--light .card:hover{box-shadow:var(--sh-l)}

/* ================= 头部导航 ================= */
.site-header{position:relative;z-index:60;background:rgba(8,12,15,.94);border-bottom:1px solid var(--line-d);backdrop-filter:blur(14px)}
.nav-top-inner{display:flex;align-items:center;gap:22px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad);display:grid;place-items:center;font-size:17px;font-weight:800;color:#EAFBF8;box-shadow:0 6px 18px rgba(23,163,152,.35)}
.brand-text{font-size:18px;font-weight:800;white-space:nowrap}
.nav-search{position:relative;flex:1 1 auto;max-width:560px;display:flex;align-items:center;height:52px;padding:0 6px 0 18px;background:rgba(255,255,255,.06);border:1px solid var(--line-d);border-radius:var(--r-pill);transition:border-color var(--dur) var(--e),box-shadow var(--dur) var(--e),background var(--dur) var(--e)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,163,152,.18);background:rgba(255,255,255,.09)}
.nav-search .s-ico{flex:0 0 auto;color:var(--tx-dim)}
.nav-search input{flex:1 1 auto;min-width:0;height:100%;padding:0 12px;background:none;border:0;outline:none;font-size:15px;color:var(--tx-hi)}
.nav-search input::placeholder{color:#7E8D8B}
.nav-search-btn{flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#EAFBF8;transition:filter var(--dur) var(--e),transform var(--dur) var(--e)}
.nav-search-btn:hover{filter:brightness(1.08)}
.nav-search-btn:active{transform:translateY(1px)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.pill-btn{display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:var(--r-pill);border:1px solid rgba(23,163,152,.5);color:var(--brand-2);font-size:14px;font-weight:600;transition:background var(--dur) var(--e),color var(--dur) var(--e),transform var(--dur) var(--e)}
.pill-btn:hover{background:rgba(23,163,152,.14);color:#9FE7DF}
.pill-btn:active{transform:translateY(1px)}
.icon-btn{width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line-d);display:grid;place-items:center;color:var(--tx-mid);transition:color var(--dur) var(--e),border-color var(--dur) var(--e),transform var(--dur) var(--e)}
.icon-btn:hover{color:var(--tx-hi);border-color:var(--brand)}
.icon-btn:active{transform:translateY(1px)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line-d);place-items:center;color:var(--tx-hi)}
.nav-quick{border-top:1px solid var(--line-d)}
.nav-quick-inner{display:flex;align-items:center;gap:10px;height:36px;overflow-x:auto;scrollbar-width:none}
.nav-quick-inner::-webkit-scrollbar{display:none}
.quick-label{flex:0 0 auto;font-size:13px;color:var(--tx-dim)}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.06);font-size:13px;color:var(--tx-mid);transition:background var(--dur) var(--e),color var(--dur) var(--e)}
.chip:hover{background:rgba(23,163,152,.18);color:#B6E8E2}
.nav-sub{border-top:1px solid var(--line-d)}
.nav-sub-inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none}
.nav-sub-inner::-webkit-scrollbar{display:none}
.nav-sub a{position:relative;display:block;height:48px;line-height:48px;font-size:15px;font-weight:500;color:var(--tx-mid);white-space:nowrap;transition:color var(--dur) var(--e)}
.nav-sub a:hover{color:var(--brand-2)}
.nav-sub a.is-active{color:var(--tx-hi);font-weight:700}
.nav-sub a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;background:var(--brand)}

/* ================= 按钮 ================= */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 28px;border-radius:var(--r-pill);font-size:16px;font-weight:600;white-space:nowrap;transition:filter var(--dur) var(--e),transform var(--dur) var(--e),background var(--dur) var(--e),border-color var(--dur) var(--e),color var(--dur) var(--e)}
.btn-primary{background:var(--grad);color:#F0FEFC;box-shadow:0 12px 30px rgba(23,163,152,.35)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid rgba(233,241,239,.3);color:var(--tx-hi)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(23,163,152,.12);color:#9FE7DF}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:42px;padding:0 20px;font-size:15px}

/* ================= Hero ================= */
.hero{position:relative;display:flex;align-items:center;min-height:640px;height:78vh;overflow:hidden;background:var(--brand-900)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.03)}
.hero-veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,12,15,.92) 0%,rgba(14,59,63,.72) 45%,rgba(8,12,15,.2) 100%)}
.hero-fade{position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(180deg,rgba(8,12,15,0),var(--ink-900))}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:6fr 6fr;align-items:center;gap:24px}
.hero-copy{max-width:640px}
.hero-eyebrow{display:inline-flex;align-items:center;height:30px;padding:0 14px;margin-bottom:20px;border-radius:var(--r-pill);background:var(--amber-bg);border:1px solid rgba(255,194,75,.25);color:var(--amber);font-size:13px;font-weight:600}
.hero h1{color:#FFFFFF;text-shadow:0 6px 28px rgba(0,0,0,.5)}
.hero-sub{margin-top:18px;max-width:560px;font-size:19px;line-height:1.75;color:#C9D7D5}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
.hero-stats li{display:flex;align-items:baseline;gap:8px;padding:8px 16px;border-radius:var(--r-pill);background:var(--amber-bg);border:1px solid rgba(255,194,75,.22)}
.badge-num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:17px;font-weight:700;color:var(--amber)}
.badge-lb{font-size:13px;color:#D6C69E}
.hero-dots{position:absolute;right:0;bottom:28px;display:flex;gap:8px}
.hero-dots i{width:8px;height:8px;border-radius:50%;background:rgba(233,241,239,.3)}
.hero-dots i.on{width:26px;border-radius:4px;background:var(--brand)}

/* ================= 区块标题 ================= */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-head-l{min-width:0}
.sec-desc{margin-top:10px;font-size:14px;color:var(--tx-mid)}
.sec-links{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.sec-link{font-size:14px;font-weight:600;color:var(--brand-2);border-bottom:1px solid transparent;transition:color var(--dur) var(--e),border-color var(--dur) var(--e)}
.sec-link:hover{color:#8FE3DA;border-bottom-color:#8FE3DA}
.rail-ctl{display:flex;gap:10px}
.rail-btn{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid var(--line-d);display:grid;place-items:center;color:var(--tx-mid);transition:background var(--dur) var(--e),border-color var(--dur) var(--e),color var(--dur) var(--e)}
.rail-btn:hover{background:var(--brand);border-color:var(--brand);color:#FFFFFF}
.rail-btn:active{transform:translateY(1px)}
.section--light .rail-btn{background:rgba(16,52,58,.05);border-color:var(--lt-line);color:var(--lt-mid)}
.section--light .rail-btn:hover{background:var(--brand);border-color:var(--brand);color:#FFFFFF}

/* ================= 横滑轨道 ================= */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-item{flex:0 0 300px;scroll-snap-align:start}

/* ================= 卡片 ================= */
.card{height:100%;background:var(--ink-700);border:1px solid var(--line-d);border-radius:var(--r-md);overflow:hidden;transition:transform var(--dur) var(--e),box-shadow var(--dur) var(--e),border-color var(--dur) var(--e)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-d);border-color:rgba(23,163,152,.42)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--grad);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--e)}
.card:hover .card-media img{transform:scale(1.05)}
.card-media .badge{position:absolute;left:12px;top:12px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--amber-bg);border:1px solid rgba(255,194,75,.22);color:var(--amber);font-size:12px;font-weight:600}
.card-body{padding:18px 20px 20px}
.card-title{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:17px;font-weight:600;line-height:1.5}
.card-text{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:10px;font-size:14px;line-height:1.75;color:var(--tx-mid)}
.card-meta{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:13px;color:var(--tx-dim)}
.dot{width:3px;height:3px;border-radius:50%;background:currentColor;opacity:.6}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:rgba(23,163,152,.14);color:var(--brand-2);font-size:12px;font-weight:600}
.section--light .tag{background:rgba(23,163,152,.12);color:#0E6F68}

/* ================= 网格 ================= */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}

/* ================= 重点栏目 ================= */
.feat{display:grid;grid-template-columns:7fr 5fr;gap:26px;align-items:stretch}
.feat-main{position:relative;display:flex;align-items:flex-end;aspect-ratio:21/9;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-d);background:var(--brand-900)}
.feat-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.feat-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,12,15,0) 28%,rgba(8,12,15,.6) 62%,rgba(8,12,15,.95) 100%)}
.feat-body{position:relative;z-index:2;padding:32px}
.feat-body h3{font-size:24px;font-weight:700;color:#FFFFFF}
.feat-body p{margin-top:10px;font-size:15px;line-height:1.75;color:#C9D7D5;max-width:640px}
.feat-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.rank{background:var(--ink-700);border:1px solid var(--line-d);border-radius:var(--r-lg);padding:6px 0;height:100%}
.rank-item{display:flex;align-items:center;gap:14px;padding:14px 20px;border-bottom:1px solid var(--line-d);transition:background var(--dur) var(--e)}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:rgba(23,163,152,.08)}
.rank-no{flex:0 0 30px;font-family:var(--num);font-variant-numeric:tabular-nums;font-size:17px;font-weight:700;color:#5C6B69}
.rank-item:nth-child(-n+3) .rank-no{color:var(--brand-2)}
.rank-thumb{flex:0 0 64px;aspect-ratio:64/40;border-radius:8px;overflow:hidden;background:var(--grad)}
.rank-thumb img{width:100%;height:100%;object-fit:cover}
.rank-body{min-width:0}
.rank-body h3{font-size:15px;font-weight:600;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-body span{display:block;margin-top:2px;font-size:13px;color:var(--tx-dim)}

/* ================= 宽卡（图文左右） ================= */
.wide-card{display:grid;grid-template-columns:40% 1fr;background:var(--ink-700);border:1px solid var(--line-d);border-radius:var(--r-md);overflow:hidden;transition:transform var(--dur) var(--e),box-shadow var(--dur) var(--e),border-color var(--dur) var(--e)}
.wide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-d);border-color:rgba(23,163,152,.42)}
.wide-card .wc-media{position:relative;background:var(--grad);overflow:hidden;min-height:180px}
.wide-card .wc-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--e)}
.wide-card:hover .wc-media img{transform:scale(1.05)}
.wide-card .wc-body{padding:22px 24px;display:flex;flex-direction:column;justify-content:center}
.wide-card h3{font-size:18px}
.wide-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--tx-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wc-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ================= 标签墙 ================= */
.tag-wall{display:flex;flex-wrap:wrap;gap:12px}
.tag-wall a{display:inline-flex;align-items:center;height:44px;padding:0 22px;border-radius:var(--r-pill);background:rgba(255,255,255,.05);border:1px solid var(--line-d);font-size:15px;color:var(--tx-mid);transition:background var(--dur) var(--e),color var(--dur) var(--e),border-color var(--dur) var(--e),transform var(--dur) var(--e)}
.tag-wall a:hover{background:rgba(23,163,152,.16);border-color:rgba(23,163,152,.5);color:#B6E8E2;transform:translateY(-2px)}
.tag-wall a:active{transform:translateY(0)}

/* ================= 最新信息 ================= */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{display:flex;flex-direction:column;height:100%;padding:22px 22px 20px;background:var(--ink-700);border:1px solid var(--line-d);border-radius:var(--r-md);transition:transform var(--dur) var(--e),box-shadow var(--dur) var(--e),border-color var(--dur) var(--e)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-l);border-color:rgba(23,163,152,.42)}
.section--light .news-card{background:#FFFFFF}
.news-title{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:17px;font-weight:600;line-height:1.55}
.news-title a:hover{color:var(--brand)}
.news-excerpt{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:10px;font-size:14px;line-height:1.8;color:var(--tx-mid)}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line-d)}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--tx-dim)}
.read-more{font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.read-more:hover{text-decoration:underline;text-underline-offset:3px}
.news-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:240px;border:1px dashed var(--lt-line);border-radius:var(--r-md);background:rgba(255,255,255,.6);text-align:center}
.news-empty svg{color:#9AAAA7}
.news-empty p{font-size:15px;color:var(--lt-mid)}

/* ================= FAQ ================= */
.faq{border:1px solid var(--line-d);border-radius:var(--r-md);overflow:hidden;background:rgba(255,255,255,.035)}
.faq-item + .faq-item{border-top:1px solid var(--line-d)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--tx-hi);transition:color var(--dur) var(--e)}
.faq-q:hover{color:var(--brand-2)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;color:var(--tx-mid);transition:transform var(--dur) var(--e),color var(--dur) var(--e)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:currentColor;border-radius:2px}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--brand-2)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms var(--e)}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--tx-mid)}

/* ================= CTA ================= */
.cta-bar{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;overflow:hidden;padding:44px 48px;border-radius:24px;background:var(--grad);transition:filter var(--dur) var(--e)}
.cta-bar:hover{filter:brightness(1.04)}
.cta-bar::after{content:"";position:absolute;right:-70px;bottom:-100px;width:290px;height:290px;border-radius:50%;background:radial-gradient(circle,rgba(255,107,74,.25),rgba(255,107,74,0) 70%)}
.cta-copy{position:relative;z-index:2}
.cta-bar h2{font-size:27px;color:#FFFFFF}
.cta-bar p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}
.btn-solid{background:#FFFFFF;color:#0E3B3F;font-weight:700}
.btn-solid:hover{background:#EAFBF8;transform:translateY(-2px)}
.btn-line{border:1px solid rgba(255,255,255,.55);color:#FFFFFF}
.btn-line:hover{background:rgba(255,255,255,.14)}

/* ================= 页脚 ================= */
.site-footer{background:#05090B;border-top:1px solid var(--line-d);padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px}
.foot-brand p{margin-top:16px;max-width:320px;font-size:14px;line-height:1.85;color:var(--tx-mid)}
.foot-col h3{margin-bottom:16px;font-size:14px;font-weight:700;color:var(--tx-hi);letter-spacing:.3px}
.foot-col li + li{margin-top:10px}
.foot-col a{font-size:14px;color:var(--tx-mid)}
.foot-col a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px}
.foot-note{font-size:14px;line-height:1.85;color:var(--tx-mid)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 0;border-top:1px solid var(--line-d);font-size:13px;color:#7E8D8B}

/* ================= 响应式 ================= */
@media (max-width:1199px){
  .rail-item{flex:0 0 260px}
  h1{font-size:38px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .section--tight{padding:56px 0}
  h1{font-size:34px}
  h2{font-size:25px}
  .hero{height:auto;min-height:560px;padding:120px 0 96px}
  .hero-inner{grid-template-columns:1fr}
  .hero-dots{display:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .feat{grid-template-columns:1fr}
  .feat-main{aspect-ratio:16/9}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav-search{display:none;order:3;width:100%;max-width:none;margin-top:12px}
  .nav-actions .pill-btn{display:none}
  .nav-toggle{display:grid}
  .nav-top-inner{flex-wrap:wrap;min-height:60px;gap:14px;padding-bottom:12px;padding-top:12px}
  .nav-sub{display:none}
  .site-header.is-open .nav-search{display:flex}
  .site-header.is-open .nav-sub{display:block}
  .site-header.is-open .nav-sub-inner{flex-direction:column;align-items:flex-start;height:auto;gap:0;padding:6px 0}
  .site-header.is-open .nav-sub a{height:44px;line-height:44px;width:100%}
  .site-header.is-open .nav-sub a.is-active::after{display:none}
  .site-header.is-open .nav-sub a.is-active{color:var(--brand-2)}
  .brand-text{font-size:16px}
  .hero{padding:96px 0 72px;min-height:420px}
  h1{font-size:29px}
  h2{font-size:22px}
  h3{font-size:17px}
  .hero-sub{font-size:16px}
  .btn{height:46px;padding:0 22px;font-size:15px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:24px}
  .sec-links{width:100%;justify-content:space-between}
  .rail-item{flex:0 0 220px}
  .grid-4,.grid-3,.grid-2,.news-grid{grid-template-columns:1fr}
  .wide-card{grid-template-columns:1fr}
  .wide-card .wc-media{min-height:170px;aspect-ratio:16/9}
  .feat-main{aspect-ratio:4/3}
  .feat-body{padding:22px}
  .feat-body h3{font-size:20px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:30px 24px}
  .cta-bar h2{font-size:22px}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding-bottom:36px}
  .foot-bottom{flex-direction:column}
}
@media (max-width:575px){
  .hero{padding:88px 0 64px}
  h1{font-size:26px}
  .hero-stats li{padding:6px 12px}
  .badge-num{font-size:15px}
  .tag-wall a{height:40px;padding:0 16px;font-size:14px}
  .card-body{padding:16px}
}

/* roulang page: article */
:root{
  --bg:#080C0F;
  --bg-soft:#0C1418;
  --surface:#121A1F;
  --surface-2:#162026;
  --line:rgba(233,241,239,.10);
  --line-strong:rgba(233,241,239,.20);
  --text:#E9F1EF;
  --muted:#A7B6B4;
  --primary:#17A398;
  --primary-deep:#0E3B3F;
  --primary-soft:rgba(23,163,152,.14);
  --coral:#FF6B4A;
  --coral-hover:#FF7F63;
  --amber:#FFC24B;
  --amber-soft:rgba(255,194,75,.14);
  --lite-bg:#F5F7F6;
  --lite-card:#FFFFFF;
  --lite-line:rgba(16,52,58,.10);
  --lite-text:#16211F;
  --lite-muted:#5A6B69;
  --grad-brand:linear-gradient(120deg,#0E3B3F 0%,#17A398 100%);
  --grad-hero:linear-gradient(90deg,rgba(8,12,15,.92) 0%,rgba(14,59,63,.72) 45%,rgba(8,12,15,.10) 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-dark:0 18px 44px rgba(0,0,0,.45);
  --sh-lite:0 12px 32px rgba(16,52,58,.10);
  --focus:0 0 0 3px rgba(23,163,152,.45);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","Barlow",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,button{outline:none}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--r-sm)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,12,15,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:17px;
  box-shadow:0 8px 20px rgba(23,163,152,.35);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.2px;color:var(--text)}
.brand:hover .brand-text{color:var(--primary)}
.nav-search{
  flex:1 1 auto;max-width:560px;display:flex;align-items:center;gap:10px;
  height:52px;padding:0 6px 0 18px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color var(--t),box-shadow var(--t);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:var(--focus)}
.nav-search .s-ico{color:var(--muted);flex:0 0 auto}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;
  color:var(--text);font-size:15px;font-family:var(--font-cn);
}
.nav-search input::placeholder{color:rgba(167,182,180,.85)}
.nav-search-btn{
  flex:0 0 auto;width:40px;height:40px;border:0;border-radius:12px;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;
  transition:filter var(--t),transform var(--t);
}
.nav-search-btn:hover{filter:brightness(1.08)}
.nav-search-btn:active{transform:translateY(1px)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.pill-btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:600;
  transition:filter var(--t),transform var(--t),box-shadow var(--t);
}
.pill-btn:hover{color:#fff;filter:brightness(1.06);box-shadow:0 10px 26px rgba(23,163,152,.35)}
.pill-btn:active{transform:translateY(1px)}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:var(--muted);
  display:grid;place-items:center;transition:color var(--t),border-color var(--t),background var(--t);
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:var(--text);
  place-items:center;
}
.nav-quick{border-top:1px solid var(--line);background:rgba(12,20,24,.7)}
.nav-quick-inner{display:flex;align-items:center;gap:10px;min-height:56px;overflow-x:auto;scrollbar-width:none}
.nav-quick-inner::-webkit-scrollbar{display:none}
.quick-label{font-size:13px;color:var(--muted);white-space:nowrap;flex:0 0 auto}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.06);border:1px solid transparent;
  font-size:13px;color:var(--text);white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.chip:hover{background:var(--primary-soft);border-color:rgba(23,163,152,.5);color:var(--primary)}
.chip.is-active{background:var(--primary-soft);border-color:rgba(23,163,152,.5);color:var(--primary)}

/* ============ 面包屑 ============ */
.crumb-bar{padding:26px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:rgba(167,182,180,.6)}
.crumb .now{color:var(--text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.art-head{padding:22px 0 30px;border-bottom:1px solid var(--line)}
.art-head h1{font-size:44px;font-weight:800;line-height:1.3;max-width:22ch}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:18px;font-size:14px;color:var(--muted)}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}
.art-meta .cat{color:var(--primary)}
.art-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;overflow-x:auto;scrollbar-width:none}
.art-tags::-webkit-scrollbar{display:none}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--amber-soft);border:1px solid rgba(255,194,75,.28);color:var(--amber);font-size:13px;
  transition:filter var(--t),transform var(--t);
}
.tag:hover{color:var(--amber);filter:brightness(1.08);transform:translateY(-2px)}
.share-row{display:flex;align-items:center;gap:10px;margin-top:22px}
.share-row .label{font-size:13px;color:var(--muted)}
.share-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);
  background:transparent;color:var(--muted);display:grid;place-items:center;
  transition:color var(--t),border-color var(--t),background var(--t),transform var(--t);
}
.share-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}
.share-btn:active{transform:translateY(1px)}

/* ============ 主视觉 ============ */
.hero-media{
  margin:34px 0 0;aspect-ratio:16/9;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--grad-brand);
  box-shadow:var(--sh-dark);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media figcaption{padding:12px 18px;font-size:13px;color:var(--muted);background:rgba(12,20,24,.9)}

/* ============ 正文布局 ============ */
.art-section{padding:56px 0 96px}
.art-layout{padding:0}
.post-main{min-width:0}
.post-panel{
  background:var(--lite-card);color:var(--lite-text);
  border-radius:var(--r-lg);border:1px solid var(--lite-line);
  box-shadow:var(--sh-lite);padding:36px 40px;
}
.post-body{max-width:780px;font-size:16px;line-height:1.9;color:var(--lite-text)}
.post-body p{margin:0 0 1.25em}
.post-body h2{font-size:26px;font-weight:700;color:var(--lite-text);margin:40px 0 16px;line-height:1.4}
.post-body h3{font-size:19px;font-weight:600;color:var(--lite-text);margin:28px 0 12px;line-height:1.5}
.post-body ul,.post-body ol{margin:0 0 1.25em;padding-left:0}
.post-body ul li,.post-body ol li{position:relative;padding-left:22px;margin:6px 0;line-height:1.9}
.post-body ul li::before{
  content:"";position:absolute;left:4px;top:.78em;width:7px;height:7px;border-radius:50%;
  background:var(--primary);
}
.post-body ol{counter-reset:li}
.post-body ol li{counter-increment:li}
.post-body ol li::before{
  content:counter(li);position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:14px;font-weight:600;color:var(--primary);
}
.post-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:4px solid var(--primary);
  background:rgba(23,163,152,.08);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--lite-muted);
}
.post-body img{border-radius:var(--r-md);margin:22px 0;box-shadow:var(--sh-lite)}
.post-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.post-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  border-radius:var(--r-sm);overflow:hidden;display:block;overflow-x:auto;
}
.post-body th,.post-body td{padding:12px 14px;border-bottom:1px solid var(--lite-line);text-align:left}
.post-body thead th{background:var(--lite-bg);font-weight:700}
.post-body tbody tr:nth-child(even){background:rgba(16,52,58,.03)}
.post-body code{
  font-family:var(--font-num);font-size:14px;background:var(--lite-bg);
  padding:2px 6px;border-radius:6px;color:#0E3B3F;
}
.post-body pre{
  background:var(--surface);color:var(--text);padding:18px 20px;border-radius:var(--r-sm);
  overflow-x:auto;margin:22px 0;border:1px solid var(--line);
}
.post-body pre code{background:transparent;color:inherit;padding:0}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  min-height:280px;text-align:center;color:var(--lite-muted);
}
.empty-state .empty-ico{
  width:56px;height:56px;border-radius:50%;border:1px solid var(--lite-line);
  display:grid;place-items:center;color:var(--primary);
}
.empty-state p{font-size:15px}

/* ============ 侧栏 ============ */
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-dark);
}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:14px}
.side-list li+li{border-top:1px solid var(--line)}
.side-list a{display:block;padding:10px 0;font-size:14px;color:var(--muted)}
.side-list a:hover{color:var(--primary);transform:translateX(2px)}
.side-list .meta{display:block;font-size:12px;color:rgba(167,182,180,.75);margin-top:2px}
.side-note{font-size:14px;line-height:1.85;color:var(--muted)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags .chip{height:30px;font-size:12px}

/* ============ 文末 ============ */
.art-foot{margin-top:32px}
.foot-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.pn-card:hover{transform:translateY(-4px);border-color:rgba(23,163,152,.5);box-shadow:var(--sh-dark);color:var(--text)}
.pn-card .pn-label{font-size:12px;color:var(--muted);letter-spacing:.5px}
.pn-card h3{font-size:16px;margin-top:8px;color:var(--text)}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:14px;color:var(--primary);
}
.back-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ 相关推荐 ============ */
.rec-section{padding:0 0 96px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{font-size:30px;font-weight:700}
.sec-head p{margin-top:8px;font-size:14px;color:var(--muted)}
.sec-head .more{font-size:14px;color:var(--primary)}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rec-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);display:block;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-dark);border-color:rgba(23,163,152,.45);color:var(--text)}
.rec-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--grad-brand)}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.rec-card:hover .thumb img{transform:scale(1.05)}
.rec-card .body{padding:18px}
.rec-card h3{font-size:17px;font-weight:600;line-height:1.5}
.rec-card p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--muted)}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;padding:44px;
  background:var(--grad-brand);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  transition:filter var(--t);
}
.cta-band:hover{filter:brightness(1.04)}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-110px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,74,.25),rgba(255,107,74,0) 70%);
}
.cta-band h2{font-size:28px;color:#fff;position:relative;z-index:1}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);position:relative;z-index:1}
.cta-actions{display:flex;gap:12px;position:relative;z-index:1;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:filter var(--t),transform var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:var(--coral-hover);color:#fff;filter:brightness(1.04)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.20);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-lite{background:var(--primary);color:#fff}
.btn-lite:hover{background:#159183;color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:36ch}
.foot-col h3{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.foot-col ul li+li{margin-top:10px}
.foot-col ul a{font-size:14px;color:var(--muted)}
.foot-col ul a:hover{color:var(--primary)}
.foot-note{font-size:14px;color:var(--muted);line-height:1.85}
.foot-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.foot-bottom .num{font-family:var(--font-num)}

/* ============ 提示条 ============ */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);
  background:var(--surface);border:1px solid var(--line-strong);color:var(--text);
  padding:12px 22px;border-radius:var(--r-pill);font-size:14px;box-shadow:var(--sh-dark);
  opacity:0;pointer-events:none;transition:opacity var(--t),transform var(--t);z-index:90;
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .art-head h1{font-size:38px}
  .post-panel{padding:32px}
}
@media (max-width:991px){
  .nav-top-inner{flex-wrap:wrap;gap:14px;min-height:60px;padding-top:10px;padding-bottom:10px}
  .nav-search{order:10;flex-basis:100%;max-width:none;display:none;margin-bottom:6px}
  .site-header.is-open .nav-search{display:flex}
  .nav-quick{display:none}
  .site-header.is-open .nav-quick{display:block}
  .nav-quick-inner{flex-wrap:wrap;padding:10px 0}
  .nav-actions .pill-btn{display:none}
  .nav-toggle{display:grid}
  .art-head h1{font-size:32px;max-width:none}
  .art-section{padding:40px 0 72px}
  .post-body{max-width:none;font-size:15px}
  .post-panel{padding:26px 22px;border-radius:var(--r-md)}
  .side-sticky{position:static;margin-top:28px}
  .rec-grid{grid-template-columns:1fr 1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .sec-head h2{font-size:24px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .art-head h1{font-size:26px}
  .art-meta{font-size:13px;gap:10px}
  .post-panel{padding:22px 16px}
  .post-body h2{font-size:21px;margin:32px 0 12px}
  .post-body h3{font-size:17px}
  .pn-grid{grid-template-columns:1fr}
  .rec-grid{grid-template-columns:1fr}
  .cta-band h2{font-size:22px}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{flex-direction:column;gap:8px}
  .hero-media{border-radius:var(--r-md);margin-top:24px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --c-deep:#0E3B3F;
  --c-bright:#17A398;
  --c-bright-dark:#12867C;
  --grad-brand:linear-gradient(120deg,#0E3B3F 0%,#17A398 100%);
  --c-coral:#FF6B4A;
  --c-coral-hover:#FF7F63;
  --c-amber:#FFC24B;
  --c-amber-bg:rgba(255,194,75,.14);
  --dark-bg:#080C0F;
  --dark-base:#0B1417;
  --dark-card:#121A1F;
  --dark-line:rgba(233,241,239,.10);
  --dark-line-soft:rgba(233,241,239,.06);
  --dark-text:#E9F1EF;
  --dark-sub:#A7B6B4;
  --light-bg:#F5F7F6;
  --light-card:#FFFFFF;
  --light-line:rgba(16,52,58,.10);
  --light-text:#16211F;
  --light-sub:#5A6B69;
  --c-ok:#2FA37A;
  --c-warn:#E8A33D;
  --c-err:#D9534F;
  --r-xl:24px;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-dark:0 18px 44px rgba(0,0,0,.45);
  --sh-light:0 12px 32px rgba(16,52,58,.10);
  --sh-light-hover:0 20px 46px rgba(16,52,58,.18);
  --focus-ring:0 0 0 3px rgba(23,163,152,.45);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --sp:8px;
  --max-w:1280px;
}
*,*::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","Microsoft YaHei","Source Han Sans SC",-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--light-text);
  background:var(--light-bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
a:hover{color:var(--c-bright);text-decoration:underline;text-underline-offset:3px;}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,button,select,textarea{font:inherit;color:inherit;}
.num,.time,[data-num]{font-family:"Inter","Barlow",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus{outline:none;}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--r-sm);}
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--light-text);}
.section-head .lead{margin-top:8px;font-size:14px;color:var(--light-sub);}
.section-link{font-size:14px;font-weight:600;color:var(--c-bright);white-space:nowrap;}
.section-link:hover{color:var(--c-bright-dark);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,12,15,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--dark-line);
}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(23,163,152,.28);
}
.brand-text{font-size:17px;font-weight:700;color:var(--dark-text);letter-spacing:.2px;}
.nav-search{
  flex:1 1 auto;max-width:560px;height:52px;
  display:flex;align-items:center;gap:10px;
  padding:0 6px 0 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
}
.nav-search:focus-within{border-color:var(--c-bright);box-shadow:0 0 0 4px rgba(23,163,152,.18);background:rgba(255,255,255,.08);}
.nav-search .s-ico{color:var(--dark-sub);flex:0 0 auto;}
.nav-search input[type="search"]{
  flex:1 1 auto;min-width:0;height:48px;border:0;background:transparent;
  color:var(--dark-text);font-size:15px;margin:0;
}
.nav-search input[type="search"]::placeholder{color:rgba(167,182,180,.85);}
.nav-search-btn{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  transition:filter var(--t),transform var(--t);
}
.nav-search-btn:hover{filter:brightness(1.08);}
.nav-search-btn:active{transform:translateY(1px);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.pill-btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:#fff;
  background:var(--grad-brand);
  transition:filter var(--t),box-shadow var(--t),transform var(--t);
}
.pill-btn:hover{color:#fff;text-decoration:none;filter:brightness(1.06);box-shadow:0 10px 24px rgba(23,163,152,.30);}
.pill-btn:active{transform:translateY(1px);}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-pill);
  display:flex;align-items:center;justify-content:center;
  color:var(--dark-sub);
  border:1px solid rgba(255,255,255,.14);
  transition:color var(--t),border-color var(--t),background-color var(--t);
}
.icon-btn:hover{color:var(--c-bright);border-color:var(--c-bright);background:rgba(23,163,152,.10);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  align-items:center;justify-content:center;
  color:var(--dark-text);border:1px solid rgba(255,255,255,.14);
}
.nav-toggle:hover{color:var(--c-bright);border-color:var(--c-bright);}
.nav-quick{
  border-top:1px solid var(--dark-line-soft);
  background:rgba(255,255,255,.02);
}
.nav-quick-inner{
  display:flex;align-items:center;gap:10px;height:54px;
  overflow-x:auto;scrollbar-width:none;
}
.nav-quick-inner::-webkit-scrollbar{display:none;}
.quick-label{font-size:13px;color:var(--dark-sub);white-space:nowrap;flex:0 0 auto;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);font-size:13px;color:var(--dark-sub);
  background:rgba(255,255,255,.06);
  border:1px solid transparent;
  white-space:nowrap;
  transition:color var(--t),background-color var(--t),border-color var(--t);
}
.chip:hover{color:var(--dark-text);background:rgba(23,163,152,.18);text-decoration:none;}
.chip.is-active{color:#0B1417;background:var(--c-bright);font-weight:600;}
.chip-nav{font-weight:600;color:var(--dark-text);}
.quick-split{width:1px;height:20px;background:var(--dark-line);flex:0 0 auto;margin:0 4px;}

/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background-color:var(--dark-base);
  background-image:
    linear-gradient(90deg,rgba(8,12,15,.94) 0%,rgba(14,59,63,.76) 46%,rgba(8,12,15,.42) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,rgba(8,12,15,0) 0%,rgba(8,12,15,.85) 100%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;padding:84px 0 72px;max-width:820px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dark-sub);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--dark-sub);}
.crumb a:hover{color:var(--c-bright);}
.crumb .sep{opacity:.55;}
.crumb .now{color:var(--dark-text);}
.cat-hero h1{
  font-size:44px;line-height:1.25;font-weight:800;color:#fff;letter-spacing:0;
}
.cat-hero .sub{
  margin-top:16px;font-size:16px;line-height:1.9;color:var(--dark-sub);max-width:660px;
}
.cat-stat{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--c-amber-bg);border:1px solid rgba(255,194,75,.28);
  font-size:13px;color:#F2D79B;
}
.stat-pill b{color:var(--c-amber);font-size:15px;font-weight:700;}
.hero-search{margin-top:28px;max-width:640px;}
.hero-search input[type="search"]{font-size:15px;}
.hero-chips{display:flex;gap:10px;margin-top:20px;overflow-x:auto;scrollbar-width:none;padding-bottom:4px;}
.hero-chips::-webkit-scrollbar{display:none;}
.hero-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);font-size:13px;color:var(--dark-text);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  transition:background-color var(--t),border-color var(--t),color var(--t);
}
.hero-chip:hover{background:rgba(23,163,152,.22);border-color:var(--c-bright);color:#fff;text-decoration:none;}
.hero-chip.is-active{background:var(--c-bright);border-color:var(--c-bright);color:#08110F;font-weight:600;}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:18px 22px;border-radius:var(--r-md);
  background:var(--light-card);border:1px solid var(--light-line);
  box-shadow:var(--sh-light);margin-bottom:28px;
}
.filter-bar .f-label{font-size:14px;font-weight:600;color:var(--light-text);}
.fchip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:13px;color:var(--light-sub);background:var(--light-bg);
  border:1px solid var(--light-line);
  transition:all var(--t);
}
.fchip:hover{color:var(--c-bright);border-color:var(--c-bright);text-decoration:none;}
.fchip.is-active{background:var(--grad-brand);color:#fff;border-color:transparent;font-weight:600;}
.filter-bar .f-count{margin-left:auto;font-size:13px;color:var(--light-sub);}

/* ============ 卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.g-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--light-card);border:1px solid var(--light-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-light);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.g-card:hover{transform:translateY(-4px);box-shadow:var(--sh-light-hover);border-color:rgba(23,163,152,.32);}
.g-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--grad-brand);}
.g-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.g-card:hover .g-cover img{transform:scale(1.05);}
.g-cover .cover-tag{
  position:absolute;left:12px;top:12px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(8,12,15,.68);backdrop-filter:blur(6px);
  font-size:12px;color:var(--c-amber);border:1px solid rgba(255,194,75,.35);
}
.g-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.g-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--light-text);}
.g-card:hover .g-body h3{color:var(--c-bright);}
.g-body .desc{font-size:14px;line-height:1.75;color:var(--light-sub);}
.g-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;
  color:var(--c-bright-dark);background:rgba(23,163,152,.10);
  border:1px solid rgba(23,163,152,.22);
}
.tag.tag-warm{color:#A96A12;background:rgba(255,194,75,.16);border-color:rgba(255,194,75,.35);}
.g-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;margin-top:4px;border-top:1px solid var(--light-line);
  font-size:13px;color:var(--light-sub);
}
.g-foot .go{font-weight:600;color:var(--c-bright);}
.g-card:hover .g-foot .go{color:var(--c-coral);}

/* ============ 栏目说明 ============ */
.explain{background:var(--light-card);border-top:1px solid var(--light-line);border-bottom:1px solid var(--light-line);}
.explain-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start;}
.explain h2{font-size:30px;font-weight:700;line-height:1.4;margin-bottom:18px;}
.explain p{font-size:16px;line-height:1.9;color:var(--light-sub);margin-bottom:16px;}
.explain p strong{color:var(--light-text);font-weight:600;}
.point-list{display:flex;flex-direction:column;gap:16px;}
.point{
  display:flex;gap:16px;padding:20px 22px;border-radius:var(--r-md);
  background:var(--light-bg);border:1px solid var(--light-line);
  transition:transform var(--t),box-shadow var(--t);
}
.point:hover{transform:translateY(-3px);box-shadow:var(--sh-light);}
.point .p-idx{
  flex:0 0 auto;width:34px;height:34px;border-radius:var(--r-sm);
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.point h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.point p{font-size:14px;line-height:1.8;color:var(--light-sub);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--light-line);border-radius:var(--r-md);
  background:var(--light-card);margin-bottom:14px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:rgba(23,163,152,.30);}
.faq-item.is-open{border-color:rgba(23,163,152,.42);box-shadow:var(--sh-light);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--light-text);
  min-height:60px;
}
.faq-q .pm{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,163,152,.12);color:var(--c-bright);
  font-size:18px;line-height:1;transition:transform var(--t),background-color var(--t),color var(--t);
}
.faq-item.is-open .faq-q .pm{transform:rotate(45deg);background:var(--c-bright);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t);}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--light-sub);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 60px rgba(14,59,63,.28);
  transition:filter var(--t);
}
.cta-band:hover{filter:brightness(1.04);}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,107,74,.30) 0%,rgba(255,107,74,0) 70%);
  pointer-events:none;
}
.cta-band h2{font-size:30px;font-weight:700;color:#fff;line-height:1.35;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(233,241,239,.86);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;position:relative;z-index:2;}
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  background:#fff;color:var(--c-deep);font-size:15px;font-weight:600;
  transition:transform var(--t),box-shadow var(--t);
}
.btn-solid:hover{color:var(--c-deep);text-decoration:none;transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.22);}
.btn-solid:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.55);color:#fff;font-size:15px;font-weight:600;
  transition:background-color var(--t),border-color var(--t),transform var(--t);
}
.btn-ghost:hover{color:#fff;text-decoration:none;background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark-bg);color:var(--dark-sub);padding:72px 0 28px;margin-top:96px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--dark-sub);max-width:340px;}
.foot-col h3{font-size:14px;font-weight:700;color:var(--dark-text);margin-bottom:16px;letter-spacing:.4px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col li a{font-size:14px;color:var(--dark-sub);}
.foot-col li a:hover{color:var(--c-bright);}
.foot-note{font-size:14px;line-height:1.85;color:var(--dark-sub);}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--dark-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dark-sub);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .cat-hero h1{font-size:38px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .explain-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;margin-left:auto;order:4;}
  .nav-actions{margin-left:0;order:3;}
  .nav-search{
    order:5;flex:1 0 100%;max-width:none;margin:0 0 14px;display:none;
  }
  .nav-top-inner{height:auto;padding-top:12px;padding-bottom:12px;flex-wrap:wrap;gap:12px;}
  .nav-quick{display:none;}
  .site-header.nav-open .nav-search{display:flex;animation:fadeDown var(--t);}
  .site-header.nav-open .nav-quick{display:block;}
  .site-header.nav-open .nav-quick-inner{height:auto;flex-wrap:wrap;padding:12px 0;gap:8px;overflow:visible;}
  @keyframes fadeDown{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
  .section{padding:64px 0;}
  .cat-hero-inner{padding:60px 0 54px;}
  .cat-hero h1{font-size:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .grid-3{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:23px;}
  .cat-hero h1{font-size:28px;}
  .explain h2,.cta-band h2{font-size:23px;}
  .foot-grid{grid-template-columns:1fr;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .nav-actions .pill-btn{display:none;}
  .cat-hero-inner{padding:44px 0 40px;}
  .cat-hero .sub{font-size:15px;}
  .stat-pill{padding:6px 12px;font-size:12px;}
  .filter-bar{padding:14px 16px;}
  .filter-bar .f-count{margin-left:0;width:100%;}
  .cta-band{padding:32px 20px;border-radius:18px;}
  .cta-actions{width:100%;}
  .btn-solid,.btn-ghost{width:100%;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand-deep:#0E3B3F;
  --brand:#17A398;
  --brand-grad:linear-gradient(120deg,#0E3B3F 0%,#17A398 100%);
  --coral:#FF6B4A;
  --coral-h:#FF7F63;
  --amber:#FFC24B;
  --amber-bg:rgba(255,194,75,.14);
  --ink-0:#080C0F;
  --ink-1:#121A1F;
  --line-d:rgba(233,241,239,.10);
  --tx-d:#E9F1EF;
  --tx-d2:#A7B6B4;
  --bg-l:#F5F7F6;
  --card-l:#FFFFFF;
  --line-l:rgba(16,52,58,.10);
  --tx-l:#16211F;
  --tx-l2:#5A6B69;
  --ok:#2FA37A;
  --warn:#E8A33D;
  --err:#D9534F;
  --r-xl:22px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-d:0 18px 44px rgba(0,0,0,.45);
  --sh-l:0 12px 32px rgba(16,52,58,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","Barlow",system-ui,sans-serif;
}
html.tone-dim{--bg-l:#EAEFEE;--card-l:#FAFCFC;--line-l:rgba(16,52,58,.14);}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--tx-l);
  background:var(--ink-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease);}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,input:focus-visible,label:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(23,163,152,.45);border-radius:6px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,button{font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
h1,h2,h3,h4{letter-spacing:0;line-height:1.32;color:inherit;}
table{border-collapse:collapse;width:100%;}
.container{max-width:1280px;margin:0 auto;padding:0 24px;width:100%;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,12,15,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-d);
  color:var(--tx-d);
}
.nav-top-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--tx-d);text-decoration:none;}
.brand:hover{text-decoration:none;color:var(--tx-d);}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--brand-grad);
  display:grid;place-items:center;
  font-size:17px;font-weight:800;color:#EAFBF7;
  box-shadow:0 8px 20px rgba(23,163,152,.35);
  flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:800;white-space:nowrap;}
.nav-search{
  flex:1 1 420px;max-width:560px;height:52px;
  display:flex;align-items:center;gap:8px;
  padding:0 6px 0 16px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-d);
  border-radius:var(--r-pill);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,163,152,.18);}
.nav-search .s-ico{color:var(--tx-d2);flex:0 0 auto;}
.nav-search input[type="search"]{
  flex:1;height:100%;border:0;background:transparent;color:var(--tx-d);
  outline:none;font-size:15px;min-width:0;
}
.nav-search input::placeholder{color:var(--tx-d2);}
input[type="search"]::-webkit-search-cancel-button{display:none;}
.nav-search-btn{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:var(--brand-grad);color:#EAFBF7;
  display:grid;place-items:center;
  transition:filter .22s var(--ease),transform .22s var(--ease);
}
.nav-search-btn:hover{filter:brightness(1.08);}
.nav-search-btn:active{transform:translateY(1px);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.pill-btn{
  display:inline-flex;align-items:center;height:42px;padding:0 20px;
  border-radius:var(--r-pill);
  background:var(--brand-grad);color:#EAFBF7;font-weight:600;font-size:15px;
  white-space:nowrap;
  transition:filter .22s var(--ease),transform .22s var(--ease);
}
.pill-btn:hover{filter:brightness(1.06);text-decoration:none;color:#EAFBF7;}
.pill-btn:active{transform:translateY(1px);}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line-d);color:var(--tx-d2);
  display:grid;place-items:center;
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.icon-btn:hover{color:var(--tx-d);border-color:rgba(23,163,152,.6);background:rgba(23,163,152,.12);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line-d);color:var(--tx-d);place-items:center;
}
.nav-quick{border-top:1px solid var(--line-d);background:rgba(255,255,255,.02);}
.nav-quick-inner{display:flex;align-items:center;gap:12px;min-height:52px;overflow-x:auto;scrollbar-width:none;}
.nav-quick-inner::-webkit-scrollbar{display:none;}
.quick-label{font-size:13px;color:var(--tx-d2);white-space:nowrap;flex:0 0 auto;}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-d);
  color:var(--tx-d2);font-size:13.5px;white-space:nowrap;
  transition:all .22s var(--ease);
}
.chip:hover{color:var(--tx-d);border-color:rgba(23,163,152,.55);background:rgba(23,163,152,.14);text-decoration:none;}
.chip.is-active{color:#EAFBF7;background:rgba(23,163,152,.22);border-color:rgba(23,163,152,.6);}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;color:var(--tx-d);
  background:#080C0F url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line-d);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(8,12,15,.95) 0%,rgba(14,59,63,.82) 48%,rgba(8,12,15,.62) 100%);
}
.cat-hero .container{position:relative;z-index:1;padding-top:52px;padding-bottom:48px;}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--tx-d2);margin-bottom:20px;}
.crumbs a{color:var(--tx-d2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{opacity:.55;}
.cat-hero h1{font-size:44px;font-weight:800;max-width:820px;margin-bottom:16px;}
.cat-lead{font-size:17px;line-height:1.8;color:var(--tx-d2);max-width:720px;}
.cat-badges{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 26px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--amber-bg);border:1px solid rgba(255,194,75,.32);
  color:var(--amber);font-size:13px;
}
.badge b{font-family:var(--font-num);font-weight:700;font-size:15px;color:#FFD98A;}
.cat-search{
  display:flex;align-items:center;gap:8px;
  max-width:620px;height:56px;padding:0 6px 0 18px;
  background:rgba(255,255,255,.08);
  border:1px solid var(--line-d);border-radius:var(--r-pill);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.cat-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,163,152,.2);}
.cat-search input{flex:1;height:100%;border:0;background:transparent;color:var(--tx-d);outline:none;font-size:15px;min-width:0;}
.cat-search input::placeholder{color:var(--tx-d2);}
.cat-search button{
  width:44px;height:44px;border-radius:14px;background:var(--brand-grad);color:#EAFBF7;
  display:grid;place-items:center;transition:filter .22s var(--ease),transform .22s var(--ease);
}
.cat-search button:hover{filter:brightness(1.08);}
.cat-search button:active{transform:translateY(1px);}
.chip-track{
  display:flex;gap:10px;margin-top:22px;padding-bottom:6px;
  overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity;
}
.chip-track::-webkit-scrollbar{display:none;}
.chip-track .chip{scroll-snap-align:start;height:36px;font-size:14px;}
.chip-track .chip.is-on{color:#EAFBF7;background:rgba(23,163,152,.24);border-color:rgba(23,163,152,.62);}

/* ---------- body sections ---------- */
.cat-body{background:var(--bg-l);color:var(--tx-l);padding:72px 0 88px;}
.layout{display:grid;grid-template-columns:3fr 9fr;gap:28px;align-items:start;}
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--card-l);border:1px solid var(--line-l);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-l);
}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:14px;}
.side-card h3{font-size:14px;font-weight:700;color:var(--tx-l2);margin:16px 0 10px;}
.side-card h3:first-of-type{margin-top:0;}
.filter-list li{margin-bottom:2px;}
.filter-list label{
  display:flex;align-items:center;gap:10px;
  padding:8px 10px;border-radius:var(--r-sm);
  font-size:14px;color:var(--tx-l2);cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.filter-list label:hover{background:rgba(23,163,152,.08);color:var(--tx-l);}
.filter-list input[type="checkbox"]{
  appearance:none;width:16px;height:16px;flex:0 0 auto;
  border:1px solid rgba(16,52,58,.28);border-radius:5px;background:#fff;
  display:grid;place-items:center;transition:all .22s var(--ease);
}
.filter-list input[type="checkbox"]:checked{background:var(--brand);border-color:var(--brand);}
.filter-list input[type="checkbox"]:checked::after{
  content:"";width:8px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;
  transform:rotate(-45deg) translateY(-1px);
}
.side-note{font-size:13.5px;color:var(--tx-l2);line-height:1.8;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--bg-l);border:1px solid var(--line-l);
  font-size:13px;color:var(--tx-l2);
}
.tag-cloud a:hover{color:var(--brand);border-color:rgba(23,163,152,.5);background:rgba(23,163,152,.08);text-decoration:none;}

.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap;}
.list-head h2{font-size:30px;font-weight:700;}
.list-head p{font-size:14px;color:var(--tx-l2);margin-top:6px;}
.list-head .count{font-size:13px;color:var(--tx-l2);}
.list-head .count b{font-family:var(--font-num);color:var(--brand);font-size:16px;}

.row-list{display:flex;flex-direction:column;gap:12px;}
.list-row{
  display:grid;grid-template-columns:96px 1fr 40px;gap:18px;align-items:center;
  padding:16px 18px;background:var(--card-l);
  border:1px solid var(--line-l);border-radius:var(--r-md);
  box-shadow:0 6px 18px rgba(16,52,58,.06);
  color:var(--tx-l);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);
}
.list-row:hover{
  background:rgba(23,163,152,.08);
  border-color:rgba(23,163,152,.35);
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(16,52,58,.12);
  text-decoration:none;color:var(--tx-l);
}
.list-thumb{
  width:96px;height:60px;border-radius:var(--r-sm);overflow:hidden;
  background:var(--brand-grad);flex:0 0 auto;
}
.list-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.list-row:hover .list-thumb img{transform:scale(1.06);}
.list-thumb span{
  display:grid;place-items:center;width:100%;height:100%;
  color:#EAFBF7;font-weight:800;font-size:18px;
}
.list-row h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.list-row .excerpt{
  font-size:13.5px;color:var(--tx-l2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:1;line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.list-row .meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;font-size:13px;color:var(--tx-l2);}
.list-row .meta em{font-style:normal;color:var(--brand);}
.row-arrow{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line-l);display:grid;place-items:center;color:var(--tx-l2);
  transition:all .22s var(--ease);
}
.list-row:hover .row-arrow{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateX(2px);}
.load-more-wrap{display:flex;justify-content:center;margin-top:26px;}
.load-more{
  display:inline-flex;align-items:center;gap:10px;
  height:50px;padding:0 28px;border-radius:var(--r-pill);
  border:1px solid rgba(23,163,152,.45);background:#fff;
  color:var(--brand-deep);font-weight:600;font-size:15px;
  box-shadow:0 8px 20px rgba(16,52,58,.08);
  transition:all .22s var(--ease);
}
.load-more:hover{background:rgba(23,163,152,.1);transform:translateY(-2px);}
.load-more:active{transform:translateY(0);}

/* ---------- scope section ---------- */
.section{padding:88px 0;background:var(--bg-l);color:var(--tx-l);}
.section-alt{background:#fff;border-top:1px solid var(--line-l);border-bottom:1px solid var(--line-l);}
.sec-head{max-width:720px;margin-bottom:36px;}
.sec-head h2{font-size:30px;font-weight:700;margin-bottom:12px;}
.sec-head p{font-size:15px;color:var(--tx-l2);}
.split{display:grid;grid-template-columns:5fr 7fr;gap:34px;align-items:center;}
.split-figure{
  border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line-l);
  box-shadow:var(--sh-l);aspect-ratio:16/11;background:var(--brand-grad);
}
.split-figure img{width:100%;height:100%;object-fit:cover;}
.point-list li{
  display:grid;grid-template-columns:34px 1fr;gap:14px;
  padding:16px 0;border-bottom:1px solid var(--line-l);
}
.point-list li:last-child{border-bottom:0;}
.point-ico{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:rgba(23,163,152,.12);color:var(--brand);font-weight:700;font-size:14px;
  font-family:var(--font-num);
}
.point-list h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.point-list p{font-size:14px;color:var(--tx-l2);line-height:1.78;}

/* ---------- steps ---------- */
.step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  position:relative;padding:24px 20px 22px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line-l);box-shadow:var(--sh-l);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(16,52,58,.14);}
.step-no{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:#fff;
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-grad);margin-bottom:14px;
}
.step-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--tx-l2);line-height:1.78;}
.step-track .step-card:nth-child(2) .step-no{background:linear-gradient(120deg,#12665F 0%,#2AB7A9 100%);}
.step-track .step-card:nth-child(3) .step-no{background:linear-gradient(120deg,#17A398 0%,#5CC9BE 100%);}
.step-track .step-card:nth-child(4) .step-no{background:linear-gradient(120deg,#FF6B4A 0%,#FF9A80 100%);}

/* ---------- faq ---------- */
.faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--line-l);border-radius:var(--r-md);background:#fff;
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(23,163,152,.4);}
.faq-item.is-open{border-color:rgba(23,163,152,.55);box-shadow:var(--sh-l);}
.faq-q{font-size:16px;font-weight:600;margin:0;}
.faq-q button{
  width:100%;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;text-align:left;color:var(--tx-l);font-weight:600;font-size:16px;
  transition:background-color .22s var(--ease);
}
.faq-q button:hover{background:rgba(23,163,152,.06);}
.faq-icon{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;
  display:grid;place-items:center;border:1px solid rgba(16,52,58,.2);
  color:var(--tx-l2);font-size:16px;line-height:1;
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:#fff;background:var(--brand);border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--tx-l2);}

/* ---------- cta ---------- */
.cta-wrap{padding:0 0 88px;background:var(--bg-l);}
.cta{
  position:relative;overflow:hidden;
  border-radius:24px;padding:44px 48px;
  background:var(--brand-grad);color:#EAFBF7;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:0 22px 50px rgba(14,59,63,.32);
  transition:filter .22s var(--ease);
}
.cta::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,74,.25) 0%,rgba(255,107,74,0) 70%);
}
.cta:hover{filter:brightness(1.04);}
.cta h2{font-size:30px;font-weight:700;margin-bottom:8px;}
.cta p{font-size:15px;color:rgba(234,251,247,.85);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
.btn-primary{
  display:inline-flex;align-items:center;height:50px;padding:0 26px;border-radius:var(--r-pill);
  background:#fff;color:var(--brand-deep);font-weight:600;font-size:15px;
  transition:transform .22s var(--ease),filter .22s var(--ease);
}
.btn-primary:hover{color:var(--brand-deep);text-decoration:none;filter:brightness(1.04);transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;height:50px;padding:0 26px;border-radius:var(--r-pill);
  border:1px solid rgba(234,251,247,.55);color:#EAFBF7;font-weight:600;font-size:15px;
  transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:rgba(234,251,247,.14);color:#EAFBF7;text-decoration:none;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-0);color:var(--tx-d);padding:68px 0 26px;border-top:1px solid var(--line-d);}
.foot-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:32px;}
.foot-brand p{font-size:14px;color:var(--tx-d2);line-height:1.85;margin-top:16px;max-width:340px;}
.site-footer .brand-text{color:var(--tx-d);}
.foot-col h3{font-size:14px;font-weight:700;color:var(--tx-d);margin-bottom:14px;}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul a{font-size:14px;color:var(--tx-d2);}
.foot-col ul a:hover{color:var(--brand);text-decoration:none;}
.foot-note{font-size:14px;color:var(--tx-d2);line-height:1.85;}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line-d);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-d2);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .cat-hero h1{font-size:38px;}
  .layout{grid-template-columns:4fr 8fr;gap:22px;}
  .split{grid-template-columns:1fr;gap:26px;}
  .step-track{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .nav-top-inner{flex-wrap:wrap;min-height:60px;row-gap:10px;padding-top:10px;padding-bottom:10px;}
  .nav-search{order:5;flex-basis:100%;max-width:none;display:none;}
  .site-header.menu-open .nav-search{display:flex;}
  .nav-quick{display:none;}
  .site-header.menu-open .nav-quick{display:block;}
  .nav-quick-inner{flex-wrap:wrap;padding-top:10px;padding-bottom:12px;overflow:visible;}
  .nav-toggle{display:grid;}
  .nav-actions .pill-btn{display:none;}
  .cat-hero .container{padding-top:36px;padding-bottom:36px;}
  .cat-hero h1{font-size:32px;}
  .cat-body,.section{padding:64px 0;}
  .cta-wrap{padding-bottom:64px;}
  .layout{grid-template-columns:1fr;}
  .side{position:static;flex-direction:row;flex-wrap:wrap;}
  .side-card{flex:1 1 280px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .cta{padding:34px 28px;}
  .cta h2{font-size:24px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .brand-text{font-size:15.5px;}
  .cat-hero h1{font-size:26px;}
  .cat-lead{font-size:15px;}
  .cat-search{height:50px;}
  .list-head h2{font-size:23px;}
  .sec-head h2{font-size:23px;}
  .list-row{grid-template-columns:72px 1fr;gap:14px;padding:14px;}
  .list-thumb{width:72px;height:52px;}
  .row-arrow{display:none;}
  .list-row .excerpt{-webkit-line-clamp:2;line-clamp:2;}
  .step-track{grid-template-columns:1fr;}
  .side{flex-direction:column;}
  .faq-q button{font-size:15px;padding:12px 16px;}
  .faq-a p{padding:0 16px 16px;}
  .cta{padding:26px 20px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{flex:1 1 auto;justify-content:center;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}