/* roulang page: index */
:root{
  --brand-900:#0B3B2E;--brand-700:#14664F;--brand-500:#1FA37A;--brand-300:#7BD3B4;--brand-50:#EAF6F1;
  --accent-600:#E2542B;--accent-400:#FF8A5B;--amber:#F2B705;
  --bg:#FBF8F2;--surface:#FFFFFF;--surface-2:#F4F1E9;
  --ink-900:#14201C;--ink-700:#2C3B35;--ink-500:#5A6A63;--ink-400:#8C9A93;--line:#E6E1D6;
  --grad-brand:linear-gradient(135deg,#0B3B2E 0%,#14664F 45%,#1FA37A 100%);
  --grad-accent:linear-gradient(135deg,#E2542B 0%,#FF8A5B 100%);
  --grad-veil:linear-gradient(180deg,rgba(11,59,46,0) 30%,rgba(11,59,46,.82) 100%);
  --sh-card:0 10px 28px rgba(11,59,46,.09);
  --sh-hover:0 18px 40px rgba(11,59,46,.16);
  --r-card:20px;--r-lg:28px;--r-btn:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;background-color:var(--bg);color:var(--ink-700);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;
  background-image:repeating-linear-gradient(135deg,rgba(11,59,46,.028) 0 2px,transparent 2px 9px);
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media(min-width:640px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}
.num{font-variant-numeric:tabular-nums;}

/* 顶部公告条 */
.topbar{background:var(--brand-900);color:#CFE8DE;font-size:13px;line-height:1.6;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:34px;padding-top:5px;padding-bottom:5px;}
.topbar-inner span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-inner a{color:#fff;font-weight:600;white-space:nowrap;border-bottom:1px solid rgba(255,255,255,.4);}
.topbar-inner a:hover{color:var(--brand-300);}

/* 导航 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;gap:16px;min-height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:40px;height:40px;border-radius:12px;background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;letter-spacing:.5px;box-shadow:var(--sh-card);}
.logo-text{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:.5px;white-space:nowrap;}
.nav-search{position:relative;flex:1 1 auto;max-width:560px;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:16px;width:18px;height:18px;color:var(--ink-400);pointer-events:none;}
.nav-search input{width:100%;height:44px;border-radius:999px;border:1px solid var(--line);background:var(--surface-2);padding:0 18px 0 44px;color:var(--ink-900);transition:border-color .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out;}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search input:hover{border-color:var(--brand-300);}
.nav-search input:focus{outline:none;background:var(--surface);border-color:var(--brand-500);box-shadow:0 0 0 2px var(--brand-500);}
.nav-links{display:flex;align-items:center;gap:4px;flex:0 0 auto;}
.nav-link{position:relative;padding:8px 12px;font-size:15px;font-weight:600;color:var(--ink-500);border-radius:8px;transition:color .2s ease-out;}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(.6);}
.nav-link.is-active{color:var(--brand-900);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{flex:0 0 auto;}
.nav-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);}
.nav-burger:hover{background:var(--brand-50);border-color:var(--brand-300);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;white-space:nowrap;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-card);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:var(--sh-hover);}
.btn-ghost{background:var(--surface);color:var(--brand-700);border:1.5px solid var(--brand-700);}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:5px;height:26px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700;line-height:1;}
.badge-cat{background:var(--brand-50);color:var(--brand-700);}
.badge-glass{background:rgba(255,255,255,.22);color:#fff;backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.35);}
.badge-data{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.28);}
.badge-amber{background:rgba(242,183,5,.16);color:#8A6600;}
.badge-amber svg{color:var(--amber);}
.badge-soft{background:var(--surface-2);color:var(--ink-500);border:1px solid var(--line);}

/* 通用板块 */
.section{padding-top:48px;padding-bottom:48px;}
@media(min-width:768px){.section{padding-top:80px;padding-bottom:80px;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap;}
.section-title{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;}
.section-sub{margin-top:8px;font-size:15px;color:var(--ink-500);}
.link-more{font-size:14px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:4px;border-bottom:1px solid transparent;}
.link-more:hover{color:var(--brand-900);border-bottom-color:var(--brand-900);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-700);letter-spacing:2px;text-transform:uppercase;}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--grad-brand);color:#fff;}
.hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 10px);pointer-events:none;}
.hero::after{content:"";position:absolute;width:520px;height:520px;right:-140px;top:-180px;border-radius:50%;background:radial-gradient(circle,rgba(123,211,180,.42) 0%,rgba(123,211,180,0) 68%);pointer-events:none;}
.hero-blob{position:absolute;width:420px;height:420px;left:-160px;bottom:-200px;border-radius:50%;background:radial-gradient(circle,rgba(226,84,43,.34) 0%,rgba(226,84,43,0) 70%);pointer-events:none;}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:36px;padding-top:48px;padding-bottom:48px;}
@media(min-width:1024px){.hero-inner{grid-template-columns:1.15fr .85fr;gap:56px;padding-top:72px;padding-bottom:72px;align-items:center;}}
.hero h1{font-size:clamp(2rem,5vw,3.25rem);line-height:1.15;font-weight:900;letter-spacing:-.5px;color:#fff;}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#FFD9A0,#FF8A5B);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:18px;font-size:clamp(1rem,1.7vw,1.2rem);line-height:1.7;color:rgba(255,255,255,.88);max-width:560px;}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats{margin-top:32px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:520px;}
.hero-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:12px 14px;}
.hero-stat b{display:block;font-size:clamp(1.15rem,2.2vw,1.5rem);font-weight:800;color:#fff;}
.hero-stat b i{font-style:normal;font-size:12px;font-weight:600;margin-left:2px;color:var(--brand-300);}
.hero-stat span{display:block;margin-top:2px;font-size:12px;color:rgba(255,255,255,.72);}

/* 竖屏手机卡 */
.hero-phone{position:relative;width:100%;max-width:340px;margin:0 auto;aspect-ratio:9/16;max-height:560px;border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,.35);box-shadow:0 24px 60px rgba(0,0,0,.32);}
.hero-phone img{width:100%;height:100%;object-fit:cover;}
.hero-phone-veil{position:absolute;inset:0;background:var(--grad-veil);}
.hero-tag{position:absolute;left:16px;top:16px;z-index:3;}
.hero-duration{position:absolute;right:16px;top:16px;z-index:3;height:26px;padding:0 10px;border-radius:999px;background:rgba(0,0,0,.45);color:#fff;font-size:12px;font-weight:700;display:inline-flex;align-items:center;}
.hero-play{position:absolute;right:18px;bottom:18px;z-index:3;width:64px;height:64px;border-radius:50%;background:#fff;color:var(--brand-700);display:flex;align-items:center;justify-content:center;box-shadow:0 12px 28px rgba(0,0,0,.28);transition:transform .2s ease-out;}
.hero-play:hover{transform:scale(1.08);}
.hero-play::after{content:"";width:0;height:0;border-left:16px solid currentColor;border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:5px;}
.bubble{position:absolute;z-index:3;max-width:72%;padding:8px 12px;border-radius:14px;font-size:12px;line-height:1.5;background:rgba(255,255,255,.68);color:var(--ink-900);backdrop-filter:blur(6px);box-shadow:0 8px 20px rgba(0,0,0,.14);}
.bubble-a{left:14px;bottom:104px;}
.bubble-b{left:44px;bottom:58px;background:rgba(11,59,46,.62);color:#fff;}

/* chips */
.chips{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scroll-snap-type:x proximity;}
.chips::-webkit-scrollbar{height:6px;}
.chips::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px;}
.chip{flex:0 0 auto;scroll-snap-align:start;height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink-500);font-size:14px;font-weight:600;display:inline-flex;align-items:center;transition:all .2s ease-out;}
.chip:hover{border-color:var(--brand-300);color:var(--brand-700);}
.chip.is-active{background:var(--grad-brand);border-color:transparent;color:#fff;}

/* 片段卡（竖版 9:16） */
.clip-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
@media(min-width:768px){.clip-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}}
@media(min-width:1024px){.clip-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}}
.clip-card{position:relative;display:block;border-radius:20px;overflow:hidden;aspect-ratio:9/16;background:var(--grad-brand);border:1px solid var(--line);box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;}
.clip-card img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.clip-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300);}
.clip-card:hover img{transform:scale(1.05);}
.clip-veil{position:absolute;inset:0;background:var(--grad-veil);}
.clip-body{position:absolute;left:0;right:0;bottom:0;padding:14px;z-index:2;color:#fff;}
.clip-title{font-size:14px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clip-meta{margin-top:8px;display:flex;flex-wrap:wrap;gap:6px;}
.clip-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.9);color:var(--brand-700);display:flex;align-items:center;justify-content:center;transition:transform .2s ease-out;}
.clip-play::after{content:"";width:0;height:0;border-left:13px solid currentColor;border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:4px;}
.clip-card:hover .clip-play{transform:translate(-50%,-50%) scale(1.15);}

/* 编号清单 */
.list-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);overflow:hidden;}
.list-row{display:flex;align-items:flex-start;gap:16px;padding:20px;border-bottom:1px solid var(--line);transition:background-color .2s ease-out;}
.list-row:last-child{border-bottom:0;}
.list-row:hover{background:var(--brand-50);}
.list-num{font-size:34px;font-weight:800;line-height:1;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;min-width:52px;}
.list-main{flex:1 1 auto;min-width:0;}
.list-title{font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.5;}
.list-row:hover .list-title{color:var(--brand-900);}
.list-desc{margin-top:6px;font-size:14px;color:var(--ink-500);}
.list-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;}
.list-side{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:10px;}
@media(max-width:767px){
  .list-row{flex-wrap:wrap;}
  .list-num{font-size:24px;min-width:auto;}
  .list-side{width:100%;flex-direction:row;align-items:center;justify-content:space-between;}
}

/* 口碑 */
.buzz-track{display:flex;gap:16px;overflow-x:auto;padding:6px 4px 14px;scroll-snap-type:x mandatory;}
.buzz-track::-webkit-scrollbar{height:8px;}
.buzz-track::-webkit-scrollbar-track{background:transparent;}
.buzz-track::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px;}
.buzz-card{flex:0 0 84%;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out;}
@media(min-width:640px){.buzz-card{flex:0 0 46%;}}
@media(min-width:1024px){.buzz-card{flex:0 0 31%;}}
.buzz-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.buzz-head{display:flex;align-items:center;gap:12px;}
.buzz-avatar{width:44px;height:44px;border-radius:50%;overflow:hidden;flex:0 0 auto;border:2px solid var(--brand-50);}
.buzz-avatar img{width:100%;height:100%;object-fit:cover;}
.buzz-name{font-size:15px;font-weight:700;color:var(--ink-900);}
.buzz-time{font-size:12px;color:var(--ink-400);}
.buzz-text{margin-top:14px;font-size:15px;color:var(--ink-700);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* 步骤 */
.steps{display:grid;grid-template-columns:1fr;gap:16px;}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.step-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300);}
.step-idx{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;background:var(--grad-brand);color:#fff;font-weight:800;font-size:16px;}
.step-title{margin-top:16px;font-size:18px;font-weight:700;color:var(--ink-900);}
.step-text{margin-top:8px;font-size:14px;color:var(--ink-500);}

/* CTA */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--grad-brand);color:#fff;padding:32px 24px;}
@media(min-width:768px){.cta-band{padding:48px;}}
.cta-band::after{content:"";position:absolute;width:360px;height:360px;right:-120px;bottom:-160px;border-radius:50%;background:radial-gradient(circle,rgba(255,138,91,.34) 0%,rgba(255,138,91,0) 70%);}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
@media(min-width:1024px){.cta-inner{grid-template-columns:1.2fr .8fr;gap:48px;}}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.3;font-weight:700;}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.85);font-size:15px;}
.cta-checks{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px;}
.cta-check{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);font-size:14px;font-weight:600;}
.cta-check svg{width:16px;height:16px;color:var(--brand-300);}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
@media(min-width:1024px){.cta-actions{justify-self:end;min-width:240px;}}

/* 资讯卡 */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300);}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--grad-brand);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-title{margin-top:10px;font-size:17px;font-weight:700;line-height:1.5;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card:hover .news-title{color:var(--brand-900);}
.news-sum{margin-top:8px;font-size:14px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-400);border-top:1px solid var(--line);}

/* 空态 */
.empty-state{margin-top:8px;border:1.5px dashed var(--line);border-radius:24px;padding:48px 24px;text-align:center;background:var(--surface);}
.empty-state svg{width:40px;height:40px;color:rgba(31,163,122,.3);margin:0 auto 14px;}
.empty-state p{font-size:15px;color:var(--ink-500);}
.empty-state a{margin-top:18px;}

/* FAQ */
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out;}
.faq-item:hover{border-color:var(--brand-300);box-shadow:var(--sh-card);}
.faq-item[open]{border-color:var(--brand-300);box-shadow:var(--sh-card);}
.faq-item summary{position:relative;list-style:none;cursor:pointer;padding:18px 52px 18px 20px;font-size:16px;font-weight:700;color:var(--ink-900);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;border-right:2px solid var(--brand-700);border-bottom:2px solid var(--brand-700);transform:translateY(-70%) rotate(45deg);transition:transform .2s ease-out;}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-body{padding:0 20px 20px;font-size:15px;color:var(--ink-500);display:grid;gap:8px;}
.faq-body::before{content:"";display:block;width:3px;height:0;}

/* 页脚 */
.site-footer{margin-top:24px;background:var(--brand-900);color:#B9D5C9;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-top:48px;padding-bottom:32px;}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-top:64px;}}
.foot-title{position:relative;font-size:14px;font-weight:700;color:#fff;padding-bottom:12px;margin-bottom:16px;}
.foot-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:3px;border-radius:2px;background:linear-gradient(90deg,#7BD3B4,#FF8A5B);}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .logo-mark{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.12);color:#fff;}
.foot-brand span{font-size:17px;font-weight:800;color:#fff;}
.foot-text{font-size:14px;line-height:1.8;color:#9CBCAF;}
.foot-links{display:grid;gap:10px;}
.foot-links a{font-size:14px;color:#C3DCD1;transition:color .2s ease-out,transform .2s ease-out;display:inline-block;}
.foot-links a:hover{color:#fff;transform:translateX(3px);}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;padding-bottom:24px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8FAFA2;}
.foot-bottom a{color:#C3DCD1;}
.foot-bottom a:hover{color:#fff;}

/* 移动端底部条 */
.mobile-buy{position:fixed;left:0;right:0;bottom:0;z-index:60;padding:8px 16px calc(8px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-top-left-radius:20px;border-top-right-radius:20px;box-shadow:0 -10px 30px rgba(11,59,46,.16);transform:translateY(120%);opacity:0;transition:transform .3s ease-out,opacity .3s ease-out;}
.mobile-buy.is-show{transform:translateY(0);opacity:1;}
.mobile-buy .btn{height:56px;}
@media(min-width:768px){.mobile-buy{display:none;}}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:80;background:var(--surface);display:flex;flex-direction:column;transform:translateY(-100%);transition:transform .28s ease-out;overflow-y:auto;}
.drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:20px;color:var(--brand-900);display:flex;align-items:center;justify-content:center;}
.drawer-body{padding:16px;display:grid;gap:14px;}
.drawer-body .nav-search{max-width:none;}
.drawer-links{display:grid;gap:6px;margin-top:4px;}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 16px;border-radius:14px;border:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink-700);}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--brand-50);color:var(--brand-900);border-color:var(--brand-300);}
.drawer-cta{margin-top:6px;}
body.drawer-open{overflow:hidden;}

@media (max-width:767px){
  .nav-links,.nav-cta{display:none;}
  .nav-burger{display:flex;}
  .nav-search{display:none;}
  .nav-wrap{min-height:60px;justify-content:space-between;}
  .logo-text{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: article */
:root{
  --brand-900:#0B3B2E;
  --brand-700:#14664F;
  --brand-500:#1FA37A;
  --brand-300:#7BD3B4;
  --brand-50:#EAF6F1;
  --accent-600:#E2542B;
  --accent-400:#FF8A5B;
  --amber:#F2B705;
  --bg:#FBF8F2;
  --surface:#FFFFFF;
  --surface-2:#F4F1E9;
  --ink-900:#14201C;
  --ink-700:#2C3B35;
  --ink-500:#5A6A63;
  --ink-400:#8C9A93;
  --line:#E6E1D6;
  --grad-brand:linear-gradient(135deg,#0B3B2E 0%,#14664F 45%,#1FA37A 100%);
  --grad-accent:linear-gradient(135deg,#E2542B 0%,#FF8A5B 100%);
  --grad-veil:linear-gradient(180deg,rgba(11,59,46,0) 30%,rgba(11,59,46,.82) 100%);
  --sh-card:0 10px 28px rgba(11,59,46,.09);
  --sh-hover:0 18px 40px rgba(11,59,46,.16);
  --r-card:20px;
  --r-big:28px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background-color:var(--bg);
  background-image:repeating-linear-gradient(45deg,rgba(11,59,46,.03) 0 1px,transparent 1px 16px);
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-300);color:var(--brand-900);}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media(min-width:640px){.container{padding-left:24px;padding-right:24px;}}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:14px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;
  letter-spacing:.5px;box-shadow:var(--sh-card);flex-shrink:0;
}
.logo-text{font-size:18px;font-weight:800;color:var(--ink-900);letter-spacing:.2px;white-space:nowrap;}
.nav-search{
  position:relative;flex:1 1 auto;max-width:560px;margin:0 auto;
  display:flex;align-items:center;
}
.nav-search svg{
  position:absolute;left:14px;width:18px;height:18px;color:var(--ink-400);pointer-events:none;
}
.nav-search input{
  width:100%;height:44px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface-2);padding:0 18px 0 42px;font-size:14px;color:var(--ink-900);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search input:hover{border-color:var(--brand-300);}
.nav-search input:focus{
  outline:none;background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(31,163,122,.18);
}
.nav-links{display:flex;align-items:center;gap:2px;flex-shrink:0;}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:12px;
  font-size:15px;color:var(--ink-700);white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(.6);}
.nav-link.is-active{color:var(--brand-900);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{flex-shrink:0;}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-burger:hover{border-color:var(--brand-300);background:var(--brand-50);}
.nav-burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-burger.is-open span:nth-child(2){opacity:0;}
.nav-burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:60;background:var(--bg);
  padding:20px 20px calc(24px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);transition:transform .26s ease-out;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  font-size:22px;line-height:1;cursor:pointer;color:var(--ink-700);
}
.drawer-search input{
  width:100%;height:48px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface-2);padding:0 20px;font-size:15px;
}
.drawer-search input:focus{outline:none;background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(31,163,122,.18);}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  display:flex;align-items:center;min-height:52px;font-size:17px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--brand-700);}
.drawer-cta{width:100%;height:56px;}

/* ============ 按钮与徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1.5px solid transparent;
  padding:12px 26px;font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,filter .2s ease-out,color .2s ease-out;
}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-card);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--brand-700);color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.badge{
  display:inline-flex;align-items:center;gap:5px;height:26px;padding:0 11px;border-radius:999px;
  font-size:12px;line-height:1;font-weight:600;white-space:nowrap;
}
.badge-cat{background:var(--brand-50);color:var(--brand-700);}
.badge-soft{background:rgba(244,241,233,.9);color:var(--ink-500);}
.badge-glass{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.28);}
.badge-amber{background:rgba(242,183,5,.16);color:#8A6700;}
.badge-amber svg{width:12px;height:12px;fill:var(--amber);}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-700);
  transition:all .2s ease-out;white-space:nowrap;
}
.chip:hover{border-color:var(--brand-300);color:var(--brand-700);}
.chip.is-on{background:var(--grad-brand);border-color:transparent;color:#fff;font-weight:600;}

/* ============ 页面顶部横幅 ============ */
.page-banner{position:relative;overflow:hidden;background:var(--brand-900);}
.page-banner-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34;}
.page-banner-veil{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,59,46,.94) 0%,rgba(20,102,79,.78) 55%,rgba(31,163,122,.62) 100%);}
.page-banner-inner{position:relative;z-index:2;padding-top:34px;padding-bottom:86px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);}
.crumb a{color:rgba(255,255,255,.85);transition:color .2s ease-out;}
.crumb a:hover{color:#fff;}
.crumb-sep{opacity:.5;}
.crumb-cat{color:var(--brand-300);font-weight:600;}
.crumb-current{color:#fff;font-weight:700;}
.page-banner-title{
  margin-top:14px;font-size:clamp(1.5rem,3.4vw,2.25rem);line-height:1.3;
  font-weight:800;color:#fff;max-width:880px;
}

/* ============ 文章头部卡片 ============ */
.article-shell{position:relative;margin-top:-56px;padding-bottom:24px;}
.article-head{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-big);
  box-shadow:var(--sh-card);padding:26px 24px;
}
@media(min-width:768px){.article-head{padding:34px 38px;}}
.article-title{
  margin:16px 0 0;font-size:clamp(1.6rem,4vw,2.6rem);line-height:1.22;
  font-weight:800;color:var(--ink-900);letter-spacing:-.01em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;margin-top:20px;
  padding-top:18px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-500);
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item svg{width:15px;height:15px;color:var(--brand-500);}

/* 封面 */
.article-cover{
  position:relative;margin:24px 0 0;border-radius:24px;overflow:hidden;
  aspect-ratio:16/9;background:var(--grad-brand);box-shadow:var(--sh-card);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}
.cover-tag{position:absolute;left:18px;top:18px;}
.cover-meta{position:absolute;left:18px;right:18px;bottom:16px;display:flex;gap:8px;flex-wrap:wrap;}

/* ============ 正文布局 ============ */
.article-layout{display:block;margin-top:28px;}
.article-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-big);
  box-shadow:var(--sh-card);padding:24px 20px 28px;
}
@media(min-width:768px){.article-main{padding:40px 44px 44px;}}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--ink-700);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:clamp(1.25rem,2.4vw,1.6rem);font-weight:700;color:var(--ink-900);
  line-height:1.4;margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--grad-brand);
}
.article-body h3{font-size:1.14rem;font-weight:700;color:var(--ink-900);margin:28px 0 12px;line-height:1.5;}
.article-body h4{font-size:1.02rem;font-weight:700;color:var(--ink-900);margin:22px 0 10px;}
.article-body ul{list-style:disc;padding-left:1.4em;margin:0 0 1.2em;}
.article-body ol{list-style:decimal;padding-left:1.5em;margin:0 0 1.2em;}
.article-body li{margin:.45em 0;}
.article-body ul li::marker{color:var(--brand-500);}
.article-body ol li::marker{color:var(--brand-700);font-weight:700;}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--brand-50);
  border-left:4px solid var(--brand-500);border-radius:12px;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:22px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption,
.article-body img + em{display:block;text-align:center;font-size:13px;color:var(--ink-500);margin-top:8px;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease-out;}
.article-body a:hover{color:var(--brand-900);}
.article-body strong{color:var(--ink-900);}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:32px 0;}
.article-body pre{
  background:var(--brand-900);color:#EAF6F1;padding:16px 18px;border-radius:14px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:20px 0;
}
.article-body code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body pre code{background:transparent;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--brand-50);color:var(--brand-900);font-weight:700;}

/* 空态 */
.empty-state{
  max-width:520px;margin:24px auto;padding:44px 24px;text-align:center;
  border:1.5px dashed var(--line);border-radius:var(--r-card);background:var(--surface-2);
}
.empty-state svg{width:44px;height:44px;color:var(--brand-500);opacity:.5;margin:0 auto 14px;}
.empty-state p{color:var(--ink-500);margin-bottom:18px;}

/* 标签与互动 */
.tag-row{max-width:760px;margin:32px auto 0;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tag-row .tag-label{font-size:13px;color:var(--ink-400);margin-right:4px;}
.action-bar{
  max-width:760px;margin:24px auto 0;display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding-top:22px;border-top:1px dashed var(--line);
}
.icon-btn{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;
  background:var(--surface-2);border:1px solid var(--line);font-size:14px;color:var(--ink-700);
  cursor:pointer;transition:all .2s ease-out;
}
.icon-btn svg{width:17px;height:17px;color:var(--brand-500);}
.icon-btn:hover{border-color:var(--brand-300);background:var(--brand-50);color:var(--brand-700);transform:translateY(-2px);}
.icon-btn:active{transform:translateY(1px);}

/* 上一篇/下一篇 */
.prev-next{max-width:760px;margin:28px auto 0;display:grid;grid-template-columns:1fr;gap:14px;}
@media(min-width:720px){.prev-next{grid-template-columns:1fr 1fr;}}
.pn-card{
  display:block;padding:18px 20px;border-radius:var(--r-card);background:var(--surface-2);
  border:1px solid var(--line);transition:all .2s ease-out;
}
.pn-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-card);transform:translateY(-2px);background:#fff;}
.pn-label{font-size:12px;color:var(--ink-400);margin-bottom:8px;display:block;}
.pn-title{font-size:15px;font-weight:700;color:var(--ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* 侧栏 */
.article-aside{display:none;}
@media(min-width:1024px){
  .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:26px;align-items:start;}
  .article-aside{display:block;position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:20px;
}
.side-title{
  font-size:15px;font-weight:800;color:var(--ink-900);margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;
}
.side-title::after{content:"";width:24px;height:3px;border-radius:3px;background:var(--grad-brand);}
.side-list{display:flex;flex-direction:column;gap:14px;}
.side-item{display:flex;gap:12px;align-items:center;}
.side-thumb{width:72px;height:54px;border-radius:12px;overflow:hidden;flex-shrink:0;background:var(--grad-brand);}
.side-thumb img{width:100%;height:100%;object-fit:cover;}
.side-item h4{font-size:14px;font-weight:600;color:var(--ink-900);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-item:hover h4{color:var(--brand-700);}
.side-tip{font-size:13px;color:var(--ink-500);line-height:1.8;margin-bottom:14px;}
.side-promo{
  border-radius:var(--r-card);padding:22px;background:var(--grad-brand);color:#fff;
  box-shadow:var(--sh-card);
}
.side-promo h3{font-size:17px;font-weight:800;margin-bottom:8px;}
.side-promo p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.86);margin-bottom:16px;}

/* 相关推荐 */
.section-block{margin-top:44px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:20px;}
.section-title{font-size:clamp(1.25rem,2.6vw,1.75rem);font-weight:800;color:var(--ink-900);line-height:1.3;}
.section-sub{font-size:14px;color:var(--ink-500);margin-top:6px;}
.more-link{font-size:14px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease-out;}
.more-link:hover{gap:10px;color:var(--brand-900);}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300);}
.card-media{position:relative;aspect-ratio:16/9;background:var(--grad-brand);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card-title{color:var(--brand-700);}
.card-desc{font-size:13.5px;color:var(--ink-500);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-400);}
.grid-3{display:grid;grid-template-columns:1fr;gap:18px;}
@media(min-width:640px){.grid-3{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);}}

/* CTA 区 */
.cta-band{
  margin:48px 0 56px;border-radius:var(--r-big);background:var(--grad-brand);color:#fff;
  padding:32px 24px;box-shadow:var(--sh-card);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,91,.35) 0%,rgba(255,138,91,0) 70%);
}
@media(min-width:768px){.cta-band{padding:44px 48px;}}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
@media(min-width:900px){.cta-grid{grid-template-columns:1.2fr .8fr;}}
.cta-title{font-size:clamp(1.35rem,3vw,2rem);font-weight:800;line-height:1.3;}
.cta-text{margin-top:12px;font-size:15px;color:rgba(255,255,255,.86);line-height:1.85;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.cta-point{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#fff;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  border-radius:999px;padding:7px 14px;
}
.cta-point svg{width:14px;height:14px;color:var(--brand-300);}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
@media(min-width:600px) and (max-width:899px){.cta-actions{flex-direction:row;flex-wrap:wrap;}}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:8px;}
.foot-grid{
  display:grid;grid-template-columns:1fr;gap:30px;padding:48px 0 34px;
}
@media(min-width:640px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px;}
.foot-text{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.7);max-width:320px;}
.foot-title{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;position:relative;padding-bottom:10px;
}
.foot-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:3px;border-radius:3px;background:var(--grad-brand);}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:13.5px;color:rgba(255,255,255,.72);transition:color .2s ease-out,transform .2s ease-out;width:fit-content;}
.foot-links a:hover{color:var(--brand-300);transform:translateX(3px);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between;
  padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.14);font-size:12.5px;color:rgba(255,255,255,.6);
}
.foot-bottom a{color:var(--brand-300);}

/* 移动底栏 */
.mobile-buybar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);border-radius:20px 20px 0 0;
  box-shadow:0 -8px 26px rgba(11,59,46,.12);
  transform:translateY(110%);opacity:0;pointer-events:none;
  transition:transform .28s ease-out,opacity .28s ease-out;
}
.mobile-buybar.is-show{transform:translateY(0);opacity:1;pointer-events:auto;}
.mobile-buybar span{font-size:13px;color:var(--ink-700);font-weight:600;}
@media(min-width:768px){.mobile-buybar{display:none;}}

@media(max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-burger{display:flex;}
}
@media(max-width:639px){
  .nav-search{display:none;}
  .nav-wrap{height:60px;}
  .logo-mark{width:36px;height:36px;font-size:14px;border-radius:10px;}
  .logo-text{font-size:16px;}
  .page-banner-inner{padding-top:24px;padding-bottom:74px;}
}
@media(min-width:1024px){
  .nav-drawer{display:none;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3B2E;--brand-700:#14664F;--brand-500:#1FA37A;--brand-300:#7BD3B4;--brand-50:#EAF6F1;
  --accent-600:#E2542B;--accent-400:#FF8A5B;--amber:#F2B705;
  --bg:#FBF8F2;--surface:#FFFFFF;--surface-2:#F4F1E9;
  --ink-900:#14201C;--ink-700:#2C3B35;--ink-500:#5A6A63;--ink-400:#8C9A93;--line:#E6E1D6;
  --grad-brand:linear-gradient(135deg,#0B3B2E 0%,#14664F 45%,#1FA37A 100%);
  --grad-accent:linear-gradient(135deg,#E2542B 0%,#FF8A5B 100%);
  --grad-veil:linear-gradient(180deg,rgba(11,59,46,0) 30%,rgba(11,59,46,.82) 100%);
  --sh-card:0 10px 28px rgba(11,59,46,.09);
  --sh-hover:0 18px 40px rgba(11,59,46,.16);
  --r-card:20px;--r-lg:28px;--r-s:12px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink-900);
  background-color:var(--bg);
  background-image:repeating-linear-gradient(135deg,rgba(11,59,46,.035) 0 1px,transparent 1px 14px);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.tnum{font-variant-numeric:tabular-nums;}
::selection{background:var(--brand-300);color:var(--brand-900);}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media (min-width:640px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px;
  letter-spacing:-.5px;box-shadow:inset 0 1px 0 rgba(255,255,255,.25);
}
.logo-text{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:-.3px;white-space:nowrap;}
.nav-search{
  flex:1 1 auto;max-width:560px;height:44px;display:flex;align-items:center;gap:10px;
  padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--surface-2);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-search svg{width:18px;height:18px;flex:0 0 auto;color:var(--ink-400);}
.nav-search input{
  flex:1 1 auto;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink-900);
  min-width:0;
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search:focus-within{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 3px rgba(31,163,122,.16);}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-700);
  white-space:nowrap;transition:color .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;border-radius:2px;
  background:var(--grad-brand);transition:width .22s ease-out;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{width:60%;}
.nav-link.is-active{color:var(--brand-900);font-weight:700;}
.nav-link.is-active::after{width:100%;}
.nav-burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);align-items:center;justify-content:center;flex-direction:column;
  gap:4px;cursor:pointer;flex:0 0 auto;
}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .2s ease-out,opacity .2s;}
.nav-burger:hover{background:var(--brand-50);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:999px;cursor:pointer;
  font-size:15px;font-weight:700;letter-spacing:.2px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-card);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-card);}
.btn-outline{background:#fff;color:var(--brand-700);border:1.5px solid var(--brand-700);}
.btn-outline:hover{background:var(--brand-50);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6);}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 通用板块 ============ */
.section{padding:48px 0;}
@media (min-width:768px){.section{padding:80px 0;}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;}
.sec-sub{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:640px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:700;letter-spacing:.5px;
}
.link-more{color:var(--brand-700);font-weight:700;font-size:15px;border-bottom:1.5px solid transparent;transition:border-color .2s,color .2s;}
.link-more:hover{color:var(--brand-900);border-color:var(--brand-500);}

/* ============ 分类 Hero ============ */
.cat-hero{position:relative;overflow:hidden;background:var(--grad-brand);color:#fff;}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.18;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 12% 18%,rgba(31,163,122,.55),transparent 55%),
             radial-gradient(circle at 86% 8%,rgba(255,138,91,.35),transparent 52%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:40px;padding-bottom:44px;}
@media (min-width:768px){.cat-hero .container{padding-top:56px;padding-bottom:60px;}}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px;}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .2s;}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{margin:0 8px;opacity:.6;}
.breadcrumb .cur{color:#fff;font-weight:700;}
.cat-hero h1{
  margin-top:14px;color:#fff;font-size:clamp(1.75rem,4.2vw,2.75rem);
  font-weight:800;line-height:1.2;letter-spacing:-.5px;max-width:820px;
}
.cat-hero .hero-desc{margin-top:14px;font-size:16px;color:rgba(255,255,255,.88);max-width:620px;}
.hero-search{
  margin-top:26px;max-width:520px;height:48px;display:flex;align-items:center;gap:10px;
  padding:0 18px;border-radius:999px;background:rgba(255,255,255,.94);
  box-shadow:0 14px 34px rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.5);
}
.hero-search svg{width:18px;height:18px;color:var(--ink-400);flex:0 0 auto;}
.hero-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:15px;color:var(--ink-900);}
.hero-search:focus-within{box-shadow:0 0 0 3px rgba(255,255,255,.45),0 14px 34px rgba(0,0,0,.2);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.hero-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:12px;font-weight:600;
}

/* ============ chips ============ */
.chips{
  display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 0 12px;margin-bottom:22px;-webkit-overflow-scrolling:touch;
}
.chips::-webkit-scrollbar{height:0;}
.chip{
  flex:0 0 auto;scroll-snap-align:start;height:36px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-700);
  font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.chip:hover{border-color:var(--brand-300);color:var(--brand-700);transform:translateY(-1px);}
.chip.is-on{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-card);}

/* ============ 竖屏片段墙 ============ */
.clip-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
@media (min-width:768px){.clip-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}}
@media (min-width:1024px){.clip-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}}
.clip-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--sh-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.clip-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300);}
.clip-media{position:relative;aspect-ratio:9/16;background:var(--grad-brand);overflow:hidden;}
.clip-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.clip-card:hover .clip-media img{transform:scale(1.05);}
.clip-badge{
  position:absolute;top:12px;left:12px;height:26px;padding:0 11px;border-radius:999px;
  background:rgba(255,255,255,.9);color:var(--brand-900);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;backdrop-filter:blur(6px);
}
.clip-time{
  position:absolute;top:12px;right:12px;height:24px;padding:0 9px;border-radius:8px;
  background:rgba(11,59,46,.62);color:#fff;font-size:12px;font-weight:600;
  display:inline-flex;align-items:center;letter-spacing:.3px;
}
.clip-veil{
  position:absolute;inset:0;background:var(--grad-veil);
  display:flex;flex-direction:column;justify-content:flex-end;gap:10px;padding:14px;
}
.clip-title{
  color:#fff;font-size:15px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  text-shadow:0 1px 6px rgba(0,0,0,.35);
}
.clip-stats{display:flex;flex-wrap:wrap;gap:6px;}
.stat-chip{
  display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 9px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:12px;font-weight:600;white-space:nowrap;
}
.stat-chip svg{width:12px;height:12px;}
.play-dot{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.92);
  display:grid;place-items:center;box-shadow:0 10px 24px rgba(0,0,0,.22);
  transition:transform .22s ease-out;
}
.play-dot::after{
  content:"";width:0;height:0;margin-left:3px;
  border-left:14px solid var(--brand-700);border-top:9px solid transparent;border-bottom:9px solid transparent;
}
.clip-card:hover .play-dot{transform:translate(-50%,-50%) scale(1.15);}

/* ============ 流程 ============ */
.flow-grid{display:grid;gap:18px;grid-template-columns:1fr;}
@media (min-width:768px){.flow-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}}
.flow-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300);}
.flow-num{
  font-size:34px;font-weight:800;line-height:1;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.flow-card h3{margin-top:14px;font-size:18px;font-weight:700;}
.flow-card p{margin-top:10px;font-size:15px;color:var(--ink-500);}

/* ============ 数据条 ============ */
.metric-grid{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr));}
@media (min-width:1024px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}
.metric-card{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;transition:transform .2s ease-out,background .2s ease-out;
}
.metric-card:hover{transform:translateY(-4px);background:#fff;}
.metric-value{
  font-size:22px;font-weight:800;color:var(--brand-900);letter-spacing:-.4px;
  font-variant-numeric:tabular-nums;
}
.metric-label{margin-top:6px;font-size:14px;color:var(--ink-500);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-card);overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:opacity .2s ease-out;
}
.faq-item[open]::before{opacity:1;}
.faq-item:hover{border-color:var(--brand-300);box-shadow:var(--sh-hover);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;list-style:none;font-size:16px;font-weight:700;color:var(--ink-900);
}
.faq-q::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-50);
  color:var(--brand-700);display:grid;place-items:center;font-size:17px;font-weight:700;
  transition:transform .22s ease-out;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 22px 20px;font-size:15px;color:var(--ink-500);line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad-brand);color:#fff;padding:32px 24px;
  box-shadow:var(--sh-card);
}
@media (min-width:768px){.cta-band{padding:48px 44px;}}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 88% 12%,rgba(255,138,91,.34),transparent 52%),
             radial-gradient(circle at 8% 90%,rgba(123,211,180,.22),transparent 55%);
}
.cta-inner{position:relative;z-index:2;display:grid;gap:26px;}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.25fr .85fr;align-items:center;gap:40px;}}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.86);font-size:15px;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px;}
.cta-point{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  font-size:13px;font-weight:600;color:#fff;
}
.cta-point::before{content:"✓";font-size:13px;color:var(--brand-300);font-weight:800;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
@media (min-width:768px){.cta-actions{flex-direction:row;}}
@media (min-width:1024px){.cta-actions{flex-direction:column;}}
@media (min-width:1024px){.cta-actions .btn{width:100%;}}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:56px;padding:44px 0 24px;}
.foot-grid{display:grid;gap:28px;grid-template-columns:1fr;}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;}
.foot-text{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:320px;}
.foot-title{font-size:14px;font-weight:700;color:#fff;position:relative;padding-bottom:10px;margin-bottom:14px;}
.foot-title::after{
  content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--grad-brand);
}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease-out,transform .2s ease-out;}
.foot-links a:hover{color:#fff;transform:translateX(3px);}
.foot-bottom{
  margin-top:32px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.foot-bottom a{color:var(--brand-300);}
.foot-bottom a:hover{color:#fff;text-decoration:underline;}

/* ============ 移动端底部条 ============ */
.mobile-buy{
  position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));
  height:56px;border-radius:999px;background:var(--grad-accent);color:#fff;
  display:none;align-items:center;justify-content:center;gap:8px;
  font-weight:800;font-size:16px;box-shadow:0 14px 30px rgba(226,84,43,.35);
  z-index:45;opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.mobile-buy.is-show{opacity:1;pointer-events:auto;transform:translateY(0);}
@media (max-width:1023px){.mobile-buy{display:flex;}}

/* ============ 响应式导航 ============ */
@media (max-width:1023px){
  .nav-wrap{height:60px;gap:12px;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-burger{display:flex;margin-left:auto;}
  .nav-links{
    position:fixed;left:0;right:0;top:60px;bottom:0;z-index:60;
    display:flex;flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:var(--surface);padding:12px 16px 96px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
    border-top:1px solid var(--line);
  }
  body.nav-open .nav-links{opacity:1;visibility:visible;transform:none;}
  .nav-link{
    display:flex;align-items:center;min-height:48px;padding:14px 6px;
    font-size:17px;border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--brand-700);background:var(--brand-50);border-radius:10px;padding-left:12px;}
  .logo-text{font-size:16px;}
  .logo-mark{width:36px;height:36px;border-radius:10px;font-size:13px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3B2E;
  --brand-700:#14664F;
  --brand-500:#1FA37A;
  --brand-300:#7BD3B4;
  --brand-50:#EAF6F1;
  --accent-600:#E2542B;
  --accent-400:#FF8A5B;
  --amber:#F2B705;
  --bg:#FBF8F2;
  --surface:#FFFFFF;
  --surface-2:#F4F1E9;
  --ink-900:#14201C;
  --ink-700:#2C3B35;
  --ink-500:#5A6A63;
  --ink-400:#8C9A93;
  --line:#E6E1D6;
  --grad-brand:linear-gradient(135deg,#0B3B2E 0%,#14664F 45%,#1FA37A 100%);
  --grad-accent:linear-gradient(135deg,#E2542B 0%,#FF8A5B 100%);
  --grad-veil:linear-gradient(180deg,rgba(11,59,46,0) 30%,rgba(11,59,46,.82) 100%);
  --sh-card:0 10px 28px rgba(11,59,46,.09);
  --sh-hover:0 18px 40px rgba(11,59,46,.16);
  --r-card:20px;
  --r-card-lg:28px;
  --r-btn:999px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background-color:var(--bg);
  background-image:repeating-linear-gradient(135deg,rgba(11,59,46,.028) 0 2px,transparent 2px 12px);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none}
a:hover{color:var(--brand-900)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
::selection{background:var(--brand-300);color:var(--brand-900)}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部公告条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.84);font-size:13px;line-height:1.6}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:32px;overflow:hidden}
.topbar-inner span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-inner a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4);white-space:nowrap;flex:0 0 auto}
.topbar-inner a:hover{color:#fff;border-bottom-color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:14px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:40px;height:40px;border-radius:12px;background:var(--grad-brand);color:#fff;font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center;letter-spacing:.5px;box-shadow:var(--sh-card);flex:0 0 auto}
.logo-text{font-weight:800;font-size:17px;color:var(--ink-900);letter-spacing:.2px;white-space:nowrap}
.nav-search{position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:560px}
.nav-search svg{position:absolute;left:16px;width:18px;height:18px;color:var(--ink-400);pointer-events:none}
.nav-search input{
  width:100%;height:44px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface-2);padding:0 18px 0 44px;font-size:14px;color:var(--ink-900);
  outline:none;transition:background .2s,border-color .2s,box-shadow .2s;
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(31,163,122,.18)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;padding:9px 12px;font-size:14.5px;color:var(--ink-500);border-radius:10px;white-space:nowrap;transition:color .2s,background .2s}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left center;transition:transform .24s ease-out}
.nav-link:hover{color:var(--brand-700);background:var(--brand-50)}
.nav-link:hover::after{transform:scaleX(.6)}
.nav-link.is-active{color:var(--brand-900);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{flex:0 0 auto}
.nav-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;flex:0 0 auto;transition:background .2s,border-color .2s}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s}
.nav-burger:hover{background:var(--brand-50);border-color:var(--brand-300)}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{position:fixed;inset:0;z-index:80;background:rgba(11,59,46,.4);backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .22s ease-out}
.nav-drawer.is-open{opacity:1;pointer-events:auto}
.drawer-inner{position:absolute;inset:0 0 0 auto;width:min(360px,88vw);background:var(--surface);padding:20px;display:flex;flex-direction:column;gap:16px;transform:translateX(100%);transition:transform .26s ease-out;overflow-y:auto}
.nav-drawer.is-open .drawer-inner{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;color:var(--ink-700);cursor:pointer;transition:background .2s}
.drawer-close:hover{background:var(--brand-50)}
.drawer-search{max-width:none;width:100%}
.drawer-links{display:flex;flex-direction:column;gap:6px}
.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:14px;background:var(--surface-2);color:var(--ink-700);font-size:15.5px;font-weight:600;transition:background .2s,color .2s}
.drawer-link:hover{background:var(--brand-50);color:var(--brand-900)}
.drawer-link.is-active{background:var(--grad-brand);color:#fff}
.drawer-cta{width:100%}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:700;line-height:1;border-radius:var(--r-btn);border:1.5px solid transparent;cursor:pointer;text-align:center;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s,color .18s,border-color .18s,filter .18s}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:0 10px 24px rgba(226,84,43,.28)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-hover);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-50);color:var(--brand-900);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 页面 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--grad-brand);color:#fff;padding:34px 0 44px;min-height:320px;display:flex;align-items:center}
.cat-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 10% 16%,rgba(123,211,180,.34),transparent 46%),radial-gradient(circle at 90% 84%,rgba(255,138,91,.26),transparent 52%);pointer-events:none}
.cat-hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);pointer-events:none}
.cat-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px}
.crumbs a{color:rgba(255,255,255,.8)}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.55}
.crumbs .now{color:#fff;font-weight:700}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);font-size:12.5px;color:#fff;letter-spacing:.4px;margin-bottom:16px}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.cat-hero h1{font-size:clamp(1.7rem,3.6vw,2.5rem);font-weight:800;color:#fff;line-height:1.22;max-width:20em}
.cat-hero-sub{margin-top:14px;font-size:clamp(.95rem,1.5vw,1.05rem);color:rgba(255,255,255,.86);max-width:36em}
.hero-search{position:relative;display:flex;align-items:center;max-width:520px;width:100%;margin-top:22px}
.hero-search svg{position:absolute;left:18px;width:18px;height:18px;color:var(--ink-400);pointer-events:none}
.hero-search input{width:100%;height:50px;border-radius:999px;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.96);padding:0 18px 0 48px;font-size:14.5px;color:var(--ink-900);outline:none;transition:box-shadow .2s,border-color .2s}
.hero-search input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(123,211,180,.35)}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.stat-pill{display:inline-flex;align-items:baseline;gap:8px;padding:8px 15px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);font-size:13px;color:rgba(255,255,255,.92)}
.stat-pill b{font-size:15.5px;font-weight:800;color:#fff}

/* ---------- 通用板块 ---------- */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:76px 0}}
.section-alt{background:var(--surface-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.section-title{font-size:clamp(1.4rem,2.6vw,2.05rem);font-weight:700;position:relative;padding-left:16px}
.section-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--grad-brand)}
.section-sub{margin-top:10px;color:var(--ink-500);font-size:14.5px;max-width:52em}
.more-link{font-size:14.5px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.more-link::after{content:"→";transition:transform .2s}
.more-link:hover{color:var(--brand-900)}
.more-link:hover::after{transform:translateX(3px)}

/* ---------- chips ---------- */
.chip-row{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 0 10px;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;scroll-snap-align:start;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-500);font-size:13.5px;font-weight:600;cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .2s}
.chip:hover{border-color:var(--brand-300);color:var(--brand-700);transform:translateY(-1px)}
.chip.is-on{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-card)}
.chip:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

/* ---------- 榜单条卡 ---------- */
.rank-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card-lg);box-shadow:var(--sh-card);overflow:hidden}
.rank-item{display:grid;grid-template-columns:72px 1fr auto;gap:20px;align-items:center;padding:22px 26px;border-bottom:1px solid var(--line);transition:background .2s ease-out}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:var(--brand-50)}
.rank-num{font-size:clamp(24px,3.4vw,40px);font-weight:800;line-height:1;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.5px}
.rank-body{min-width:0}
.rank-title{font-size:clamp(1.05rem,1.6vw,1.3rem);font-weight:700}
.rank-title a{color:var(--ink-900)}
.rank-title a:hover{color:var(--brand-700)}
.rank-desc{margin-top:6px;font-size:14.5px;color:var(--ink-500);line-height:1.7}
.rank-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;align-items:center}
.rank-time{font-size:12.5px;color:var(--ink-400)}
.rank-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;font-size:12px;font-weight:700;line-height:1;white-space:nowrap}
.badge-cat{background:var(--brand-50);color:var(--brand-700)}
.badge-heat{background:rgba(242,183,5,.16);color:#8A6600}
.badge-heat::before{content:"▲";font-size:9px}
.badge-time{background:var(--surface-2);color:var(--ink-500)}

/* ---------- 焦点速读 ---------- */
.focus-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:900px){.focus-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:40px}}
.focus-media{position:relative;border-radius:var(--r-card-lg);overflow:hidden;box-shadow:var(--sh-card);aspect-ratio:4/3;background:var(--grad-brand)}
.focus-media img{width:100%;height:100%;object-fit:cover}
.focus-media-veil{position:absolute;inset:auto 0 0 0;height:52%;background:var(--grad-veil)}
.focus-media-cap{position:absolute;left:20px;right:20px;bottom:18px;color:#fff;font-size:13.5px;line-height:1.6;z-index:2}
.focus-copy p{color:var(--ink-500);font-size:15px;margin-top:14px}
.metric-grid{display:grid;grid-template-columns:1fr;gap:10px;margin-top:22px}
@media (min-width:520px){.metric-grid{grid-template-columns:1fr 1fr}}
.metric-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:16px;transition:border-color .2s,box-shadow .2s,transform .2s}
.metric-item:hover{border-color:var(--brand-300);box-shadow:var(--sh-card);transform:translateY(-2px)}
.metric-name{font-size:14px;font-weight:600;color:var(--ink-700)}
.metric-val{font-size:12.5px;color:var(--brand-700);background:var(--brand-50);border-radius:999px;padding:4px 10px;font-weight:700;white-space:nowrap}

/* ---------- 更新节奏时间线 ---------- */
.timeline{position:relative;display:grid;grid-template-columns:1fr;gap:18px;margin-top:8px}
@media (min-width:768px){.timeline{grid-template-columns:repeat(3,1fr)}}
.tl-item{position:relative;padding:22px 20px 22px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300)}
.tl-dot{position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;background:var(--grad-brand)}
.tl-time{font-size:13px;font-weight:800;color:var(--brand-700);letter-spacing:.3px}
.tl-text{margin-top:8px;font-size:14.5px;color:var(--ink-500);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-card);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-brand);opacity:0;transition:opacity .24s}
.faq-item[open]{border-color:var(--brand-300);box-shadow:var(--sh-hover)}
.faq-item[open]::before{opacity:1}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px 18px 26px;font-size:15.5px;font-weight:700;color:var(--ink-900);cursor:pointer;list-style:none}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;transition:transform .24s ease-out}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 22px 20px 26px;font-size:14.8px;color:var(--ink-500);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 52px}
.cta-inner{position:relative;overflow:hidden;border-radius:var(--r-card-lg);background:var(--grad-brand);color:#fff;padding:40px 28px;display:grid;gap:26px;grid-template-columns:1fr;box-shadow:var(--sh-card)}
@media (min-width:900px){.cta-inner{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);align-items:center;padding:52px 48px}}
.cta-inner::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);pointer-events:none}
.cta-inner>*{position:relative;z-index:2}
.cta-title{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;color:#fff}
.cta-sub{margin-top:12px;font-size:15px;color:rgba(255,255,255,.85);max-width:34em}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cta-point{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);font-size:13.5px;color:#fff}
.cta-point::before{content:"✓";color:var(--brand-300);font-weight:800}
.cta-actions{display:flex;flex-direction:column;gap:12px}
@media (min-width:520px){.cta-actions{flex-direction:row;flex-wrap:wrap}}
@media (min-width:900px){.cta-actions{justify-content:flex-end}}
.cta-actions .btn{width:100%}
@media (min-width:520px){.cta-actions .btn{width:auto}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:52px 0 26px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:30px}
@media (min-width:640px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff}
.foot-brand .logo-mark{box-shadow:none}
.foot-text{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:30em}
.foot-title{position:relative;font-size:14px;font-weight:700;color:#fff;padding-bottom:10px;margin-bottom:14px}
.foot-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--grad-brand)}
.foot-links{display:flex;flex-direction:column;gap:9px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s,transform .2s;display:inline-block}
.foot-links a:hover{color:#fff;transform:translateX(3px)}
.foot-bottom{margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.62)}
.foot-bottom a{color:rgba(255,255,255,.8);border-bottom:1px solid rgba(255,255,255,.3)}
.foot-bottom a:hover{color:#fff}

/* ---------- 移动端底部跟买条 ---------- */
.mobile-buy{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);border-top:1px solid var(--line);border-radius:20px 20px 0 0;box-shadow:0 -10px 28px rgba(11,59,46,.14);transform:translateY(100%);opacity:0;transition:transform .26s ease-out,opacity .26s ease-out}
.mobile-buy.is-visible{transform:translateY(0);opacity:1}
.mobile-buy-text{font-size:13px;color:var(--ink-500);line-height:1.4}
.mobile-buy-text b{display:block;font-size:14px;color:var(--ink-900)}

@media (max-width:1023px){
  .nav-links{display:none}
  .nav-burger{display:flex}
  .nav-search{max-width:none}
}
@media (max-width:767px){
  .nav-wrap{height:60px;gap:10px}
  .nav-search{display:none}
  .nav-cta{display:none}
  .nav-links{display:none}
  .nav-burger{display:flex;margin-left:auto}
  .mobile-buy{display:flex}
  .topbar-inner{font-size:12px}
  .rank-item{grid-template-columns:52px 1fr;gap:14px;padding:18px 16px}
  .rank-side{grid-column:2;flex-direction:row;align-items:center;justify-content:space-between;width:100%}
  .rank-num{font-size:26px}
  .section{padding:44px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B3B2E;
  --brand-700:#14664F;
  --brand-500:#1FA37A;
  --brand-300:#7BD3B4;
  --brand-50:#EAF6F1;
  --accent-600:#E2542B;
  --accent-400:#FF8A5B;
  --amber:#F2B705;
  --bg:#FBF8F2;
  --surface:#FFFFFF;
  --surface-2:#F4F1E9;
  --ink-900:#14201C;
  --ink-700:#2C3B35;
  --ink-500:#5A6A63;
  --ink-400:#8C9A93;
  --line:#E6E1D6;
  --grad-brand:linear-gradient(135deg,#0B3B2E 0%,#14664F 45%,#1FA37A 100%);
  --grad-accent:linear-gradient(135deg,#E2542B 0%,#FF8A5B 100%);
  --grad-veil:linear-gradient(180deg,rgba(11,59,46,0) 30%,rgba(11,59,46,.82) 100%);
  --sh-card:0 10px 28px rgba(11,59,46,.09);
  --sh-hover:0 18px 40px rgba(11,59,46,.16);
  --r-card:20px;
  --r-lg:28px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.site-body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(45deg,rgba(11,59,46,.035) 0 1px,transparent 1px 9px),
    repeating-linear-gradient(-45deg,rgba(11,59,46,.028) 0 1px,transparent 1px 11px);
  -webkit-font-smoothing:antialiased;
}
.site-body a{color:inherit;text-decoration:none}
.site-body img{max-width:100%;display:block}
.site-body button{font-family:inherit}
.site-body input{font-family:inherit}
.site-body h1,.site-body h2,.site-body h3,.site-body h4,.site-body p{margin:0}
.site-body ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:16px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px;
  letter-spacing:.02em;box-shadow:var(--sh-card);flex:0 0 auto;
}
.logo-text{font-weight:800;font-size:17px;color:var(--brand-900);white-space:nowrap;letter-spacing:.01em}
.nav-search{
  position:relative;flex:1 1 auto;max-width:560px;
  display:flex;align-items:center;gap:8px;
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:999px;padding:6px 8px 6px 14px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{background:#fff;border-color:var(--brand-300);box-shadow:0 0 0 2px rgba(31,163,122,.26)}
.nav-search svg{width:18px;height:18px;color:var(--ink-400);flex:0 0 auto}
.nav-search input{
  flex:1 1 auto;min-width:0;height:34px;border:0;background:transparent;
  outline:none;font-size:14px;color:var(--ink-900);
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;font-weight:600;
  color:var(--ink-700);border-radius:10px;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--grad-brand);border-radius:2px;transform:scaleX(0);
  transform-origin:center;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(.6)}
.nav-link.is-active{color:var(--brand-900)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{flex:0 0 auto}
.nav-burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s ease,opacity .2s ease}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  padding:13px 24px;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-card)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);filter:brightness(1.06)}
.btn-secondary{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-secondary:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--sh-card)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-block{width:100%}

/* ---------- Badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:700;line-height:1.2;white-space:nowrap;
}
.badge-brand{background:var(--brand-50);color:var(--brand-700)}
.badge-dark{background:rgba(11,59,46,.08);color:var(--brand-900)}
.badge-amber{background:rgba(242,183,5,.16);color:#87690a}
.badge-accent{background:rgba(226,84,43,.12);color:var(--accent-600)}
.badge-glass{background:rgba(255,255,255,.82);color:var(--brand-900)}
.badge-row{display:flex;flex-wrap:wrap;gap:6px}

.chips-row{
  display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;
  scroll-snap-type:x proximity;scrollbar-width:none;
}
.chips-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--ink-700);font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.chip:hover{border-color:var(--brand-300);color:var(--brand-700);transform:translateY(-1px)}
.chip.is-active{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-card)}

/* ---------- Breadcrumbs ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);line-height:1.6}
.crumbs a{color:var(--ink-400);transition:color .18s ease}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{color:var(--ink-400);opacity:.7}
.crumbs em{font-style:normal;font-weight:700;color:var(--brand-500)}
.crumbs-light,.crumbs-light a{color:rgba(234,246,241,.72)}
.crumbs-light a:hover{color:#fff}
.crumbs-light em{color:#fff}

/* ---------- Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--grad-brand);color:#fff;isolation:isolate}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.26;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(560px 320px at 12% 18%,rgba(123,211,180,.30),transparent 70%),
    radial-gradient(520px 300px at 88% 90%,rgba(226,84,43,.26),transparent 72%),
    linear-gradient(180deg,rgba(11,59,46,.62),rgba(11,59,46,.86));
}
.cat-hero-inner{padding:36px 0 44px;min-height:300px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.cat-hero h1{
  font-size:clamp(1.75rem,4vw,2.6rem);line-height:1.2;font-weight:800;letter-spacing:.01em;
  max-width:22em;
}
.cat-hero-sub{font-size:16px;color:rgba(234,246,241,.86);max-width:38em}
.hero-search{
  display:flex;align-items:center;gap:8px;max-width:560px;width:100%;
  background:rgba(255,255,255,.94);border-radius:999px;padding:7px 7px 7px 16px;
  box-shadow:0 12px 30px rgba(0,0,0,.18);
}
.hero-search svg{width:18px;height:18px;color:var(--brand-700);flex:0 0 auto}
.hero-search input{
  flex:1 1 auto;min-width:0;height:36px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);
}
.hero-search input::placeholder{color:var(--ink-400)}

/* ---------- Sections ---------- */
.section{padding:48px 0}
@media(min-width:768px){.section{padding:72px 0}}
.section-alt{background:var(--surface-2)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.sec-title{font-size:clamp(1.5rem,3vw,2.15rem);line-height:1.3;font-weight:700;color:var(--ink-900)}
.sec-title .accent{color:var(--brand-700)}
.sec-sub{margin-top:8px;font-size:15px;color:var(--ink-500);max-width:54em}
.sec-link{font-size:14px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent;transition:border-color .18s ease,color .18s ease}
.sec-link:hover{border-color:var(--brand-300);color:var(--brand-900)}

/* ---------- Spec / compare cards ---------- */
.spec-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.spec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.spec-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-card);display:flex;flex-direction:column;gap:16px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.spec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300)}
.spec-cover{
  position:relative;aspect-ratio:4/3;border-radius:18px;overflow:hidden;
  background:var(--grad-brand);
}
.spec-cover img{width:100%;height:100%;object-fit:cover}
.spec-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,59,46,0) 55%,rgba(11,59,46,.62) 100%)}
.spec-cover .spec-cover-tag{position:absolute;left:12px;bottom:12px;z-index:2;display:flex;gap:6px;flex-wrap:wrap}
.spec-body{display:flex;flex-direction:column;gap:6px}
.spec-title{font-size:clamp(1.05rem,1.6vw,1.3rem);line-height:1.45;font-weight:700;color:var(--ink-900)}
.spec-desc{font-size:14px;color:var(--ink-500);line-height:1.75}
.spec-rows{border-top:1px solid var(--line);padding-top:4px}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.spec-row:last-child{border-bottom:0;padding-bottom:0}
.spec-label{color:var(--ink-500);flex:0 0 auto}
.spec-val{
  color:var(--ink-900);font-weight:600;text-align:right;
  display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap;min-width:0;
}
.spec-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:2px}

/* ---------- Scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:640px){.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.scene-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300)}
.scene-icon{
  width:44px;height:44px;border-radius:14px;background:var(--brand-50);color:var(--brand-700);
  display:grid;place-items:center;
}
.scene-icon svg{width:22px;height:22px}
.scene-title{font-size:17px;font-weight:700;color:var(--ink-900)}
.scene-text{font-size:14px;color:var(--ink-500);line-height:1.8}

/* ---------- Flow ---------- */
.flow{display:grid;grid-template-columns:1fr;gap:16px;counter-reset:flow}
@media(min-width:768px){.flow{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.flow{grid-template-columns:repeat(4,minmax(0,1fr))}}
.flow-item{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-card);display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--brand-300)}
.flow-num{
  font-size:34px;font-weight:800;line-height:1;letter-spacing:-.02em;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.flow-title{font-size:16px;font-weight:700;color:var(--ink-900)}
.flow-text{font-size:14px;color:var(--ink-500);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-card);overflow:hidden;position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--brand-300)}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad-brand);transform:scaleY(0);transform-origin:top;transition:transform .24s ease-out;
}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.6;
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:var(--brand-50);
  color:var(--brand-700);display:grid;place-items:center;font-size:16px;font-weight:700;
  transition:transform .24s ease-out,background .24s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-300)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--ink-500);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--grad-brand);border-radius:var(--r-lg);color:#fff;
  padding:32px 24px;position:relative;overflow:hidden;box-shadow:var(--sh-hover);
}
@media(min-width:768px){.cta-band{padding:46px 44px}}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 240px at 88% 12%,rgba(255,138,91,.30),transparent 70%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr;gap:26px;align-items:center}
@media(min-width:980px){.cta-grid{grid-template-columns:1.25fr .85fr}}
.cta-title{font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.3;font-weight:700;color:#fff}
.cta-text{margin-top:10px;font-size:15px;color:rgba(234,246,241,.86);max-width:46em}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.cta-point{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);font-size:13px;font-weight:600;color:#fff;
}
.cta-point svg{width:14px;height:14px;color:var(--brand-300)}
.cta-actions{display:flex;flex-direction:column;gap:12px}
@media(min-width:640px){.cta-actions{flex-direction:row;flex-wrap:wrap}}
@media(min-width:980px){.cta-actions{flex-direction:column}}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(234,246,241,.78);margin-top:24px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;margin-bottom:12px}
.foot-text{font-size:14px;line-height:1.85;color:rgba(234,246,241,.7);max-width:30em}
.foot-title{font-size:14px;font-weight:700;color:#fff;position:relative;padding-bottom:10px;margin-bottom:14px}
.foot-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:3px;border-radius:3px;background:var(--grad-brand)}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:rgba(234,246,241,.72);transition:color .18s ease,transform .18s ease}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(234,246,241,.6);
}
.foot-bottom a{color:var(--brand-300)}
.foot-bottom a:hover{color:#fff;text-decoration:underline}

/* ---------- Drawer ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:60;background:rgba(11,59,46,.55);
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(88vw,380px);
  background:var(--bg);padding:20px;display:flex;flex-direction:column;gap:14px;
  overflow-y:auto;transform:translateX(100%);transition:transform .24s ease-out;
  box-shadow:-18px 0 40px rgba(11,59,46,.24);
}
.nav-drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--brand-900);font-size:18px;cursor:pointer;display:grid;place-items:center;
}
.drawer-close:hover{background:var(--brand-50)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 16px;border-radius:14px;background:#fff;border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--ink-900);transition:border-color .18s ease,background .18s ease;
}
.drawer-link:hover{border-color:var(--brand-300);background:var(--brand-50)}
.drawer-link.is-active{background:var(--brand-50);border-color:var(--brand-300);color:var(--brand-900)}

/* ---------- Sticky bottom bar ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:45;display:none;
  align-items:center;gap:12px;padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);border-radius:20px 20px 0 0;
  transform:translateY(110%);opacity:0;transition:transform .24s ease-out,opacity .24s ease-out;
}
.bottom-bar.is-visible{transform:none;opacity:1}
.bottom-bar .bb-text{flex:1 1 auto;min-width:0;font-size:13px;color:var(--ink-500);line-height:1.4}
.bottom-bar .bb-text strong{display:block;font-size:14px;color:var(--ink-900)}
@media(max-width:767px){.bottom-bar{display:flex}}

/* ---------- Responsive nav ---------- */
@media(max-width:979px){
  .nav-search{display:none}
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-burger{display:flex}
}
@media(max-width:639px){
  .nav-wrap{height:60px;gap:10px}
  .logo-mark{width:36px;height:36px;border-radius:10px;font-size:12px}
  .logo-text{font-size:15px}
  .cat-hero-inner{padding:26px 0 34px;gap:14px}
  .faq-q{padding:16px;font-size:15px}
  .faq-a-inner{padding:0 16px 18px}
}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}