/* roulang page: index */
:root{
  --brand-700:#0F6B57;
  --brand-900:#0A3A2E;
  --brand-500:#17A57A;
  --brand-300:#7FD9B4;
  --accent-500:#FF7A18;
  --accent-600:#E86A0C;
  --accent-300:#FFC53D;
  --ink-900:#10231D;
  --ink-600:#4B5F58;
  --ink-400:#8A9A94;
  --line:#E3EAE7;
  --bg:#F6F9F7;
  --surface:#FFFFFF;
  --soft:#F1F5F3;
  --mint:#EAF6F1;
  --grad:linear-gradient(135deg,#0F6B57 0%,#17A57A 58%,#7FD9B4 100%);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(16,35,29,.05),0 10px 28px rgba(16,35,29,.07);
  --shadow-2:0 18px 44px rgba(15,107,87,.16);
  --bs-primary:#0F6B57;
  --bs-body-bg:#F6F9F7;
  --bs-body-color:#10231D;
  --bs-border-radius:12px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
a:visited{color:var(--brand-700);}
a:hover{color:var(--accent-500);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.section{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:var(--mint);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.3px;}
.section-head .head-desc{font-size:15px;color:var(--ink-600);max-width:640px;margin-top:10px;}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand-700);white-space:nowrap;}
.btn-text i{transition:transform .2s ease-out;}
.btn-text:hover i{transform:translateX(3px);}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--mint);color:var(--brand-700);font-size:12px;font-weight:600;
}
.tag:hover{border:1px solid var(--accent-500);color:var(--accent-600);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(16,35,29,.05);
}
.main-nav{display:flex;align-items:center;gap:20px;height:68px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:14px;flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:700;color:var(--ink-900);}
.brand-sub{font-size:11px;color:var(--ink-400);}
.nav-collapse{display:flex;align-items:center;justify-content:space-between;flex:1;gap:20px;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list .nav-link{
  position:relative;display:flex;align-items:center;height:68px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--ink-600);
  transition:color .2s ease-out;
}
.nav-list .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:center;
  transition:transform .2s ease-out;
}
.nav-list .nav-link:hover,.nav-list .nav-link.active{color:var(--brand-700);}
.nav-list .nav-link:hover::after,.nav-list .nav-link.active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:14px;}
.nav-search{
  display:flex;align-items:center;height:40px;width:230px;padding:0 14px;
  background:var(--soft);border:1px solid transparent;border-radius:999px;
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search i{font-size:13px;color:var(--ink-400);}
.nav-search input{border:0;background:transparent;outline:none;width:100%;margin-left:8px;font-size:14px;}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,165,122,.15);}
.nav-cta{height:40px;padding:0 22px;font-size:14px;}
.navbar-toggler{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--brand-700);
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;border:0;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.btn-accent{background:var(--accent-500);color:#fff;height:48px;padding:0 28px;font-size:15px;}
.btn-accent:hover,.btn-accent:focus-visible{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,24,.28);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-accent:disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}
.btn-outline-brand{background:transparent;border:1px solid var(--brand-700);color:var(--brand-700);height:48px;padding:0 26px;font-size:15px;}
.btn-outline-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.6);color:#fff;height:48px;padding:0 26px;font-size:15px;}
.btn-ghost:hover{background:#fff;color:var(--brand-900);border-color:#fff;transform:translateY(-2px);}
.btn-mint{background:var(--mint);color:var(--brand-700);height:44px;padding:0 22px;font-size:14px;}
.btn-mint:hover{background:var(--brand-700);color:#fff;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  min-height:560px;display:flex;align-items:center;padding:64px 0 72px;
  background-image:linear-gradient(135deg,rgba(10,58,46,.90) 0%,rgba(15,107,87,.86) 50%,rgba(23,165,122,.84) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
}
.hero-strip{
  position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.9) 0 2px,transparent 2px 22px);
}
.hero-arc{
  position:absolute;right:-140px;bottom:-220px;width:620px;height:620px;border-radius:50%;
  border:2px solid rgba(255,255,255,.5);opacity:.12;pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;color:#fff;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.45);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero-title{
  font-size:clamp(30px,4.6vw,52px);line-height:1.16;font-weight:700;letter-spacing:-.5px;
  color:#fff;margin-bottom:18px;
}
.hero-sub{font-size:17px;line-height:1.85;color:#EAF6F1;max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;}
.hero-facts li{display:flex;align-items:baseline;gap:8px;font-size:13px;color:#D7E7E1;}
.hero-facts .num{font-size:22px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:var(--radius-lg);
  background:#EAF6F1;box-shadow:0 24px 60px rgba(6,32,25,.35);
}
.hero-float{
  position:absolute;right:20px;bottom:-18px;
  background:#fff;border-radius:14px;padding:12px 18px;
  box-shadow:0 18px 40px rgba(6,32,25,.22);text-align:left;
}
.hero-float .num{display:block;font-size:28px;font-weight:700;color:var(--accent-500);font-variant-numeric:tabular-nums;line-height:1.1;}
.hero-float span:last-child{font-size:12px;color:var(--ink-600);}

/* 数据带 */
.stat-band{background:var(--surface);border-bottom:1px solid var(--line);}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:32px 0;
}
.stat-item{
  border-left:3px solid var(--brand-300);padding-left:18px;
}
.stat-num{font-size:32px;font-weight:700;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.stat-num span{font-size:14px;font-weight:600;margin-left:2px;}
.stat-label{font-size:13px;color:var(--ink-600);margin-top:6px;}

/* 功能分组 */
.feature-wide{
  display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);margin-bottom:24px;
  transition:box-shadow .32s ease-out,transform .32s ease-out,border-color .2s ease-out;
}
.feature-wide:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,107,87,.18);}
.icon-block{
  width:56px;height:56px;border-radius:16px;background:var(--mint);color:var(--brand-700);
  display:grid;place-items:center;font-size:22px;flex:none;
}
.icon-sm{width:40px;height:40px;border-radius:12px;background:var(--brand-300);color:var(--brand-900);display:grid;place-items:center;font-size:16px;flex:none;}
.feature-wide h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.feature-wide p{color:var(--ink-600);font-size:15px;}
.point-list{margin-top:16px;display:grid;gap:8px;}
.point-list li{position:relative;padding-left:24px;font-size:15px;color:var(--ink-600);}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:4px;
  background:var(--mint);border:2px solid var(--brand-500);
}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:box-shadow .32s ease-out,transform .32s ease-out,border-color .2s ease-out;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,107,87,.18);}
.feature-card h3{font-size:18px;font-weight:600;margin:16px 0 8px;}
.feature-card p{font-size:14px;color:var(--ink-600);flex:1;}
.feature-card .btn-text{margin-top:16px;font-size:14px;}

/* 登录路径 */
.steps-wrap{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step-item{
  position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 22px;transition:box-shadow .32s ease-out,transform .32s ease-out;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step-index{
  font-size:28px;font-weight:700;color:var(--brand-300);
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:12px;
}
.step-item h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step-item p{font-size:14px;color:var(--ink-600);}
.step-line{position:absolute;top:44px;right:-14px;width:28px;height:2px;background:var(--line);}
.step-item:last-child .step-line{display:none;}

/* 场景 */
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:32px 0;}
.scene-row + .scene-row{border-top:1px solid var(--line);}
.scene-row.reverse .scene-media{order:2;}
.scene-media img{
  width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:var(--radius-md);background:#EAF6F1;
}
.scene-badge{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;color:var(--accent-500);
  font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.scene-badge::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--accent-500);}
.scene-body h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;margin-bottom:14px;}
.scene-body p{color:var(--ink-600);font-size:15px;margin-bottom:12px;}
.scene-body .btn-text{margin-top:8px;}

/* 案例横滚 */
.case-scroller{
  display:grid;grid-auto-flow:column;grid-auto-columns:31%;
  gap:24px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;
}
.case-scroller::-webkit-scrollbar{height:8px;}
.case-scroller::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px;}
.case-card{
  scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .32s ease-out,transform .32s ease-out;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.case-card img{width:100%;aspect-ratio:4 / 3;object-fit:cover;background:#EAF6F1;}
.case-body{padding:22px;}
.case-body p{font-size:15px;color:var(--ink-900);margin-bottom:16px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  background:#fff;border:1px solid rgba(15,107,87,.16);border-radius:14px;
  padding:10px 14px;min-width:104px;
}
.badge .num{display:block;font-size:22px;font-weight:700;color:var(--accent-500);font-variant-numeric:tabular-nums;line-height:1.15;}
.badge .txt{font-size:12px;color:var(--ink-600);}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;box-shadow:var(--shadow-1);
  transition:box-shadow .32s ease-out,transform .32s ease-out,border-color .2s ease-out;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand-500);}
.price-card.featured{
  transform:scale(1.04);border-color:rgba(15,107,87,.18);
  box-shadow:0 20px 46px rgba(15,107,87,.16);overflow:hidden;
}
.price-card.featured::before{
  content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--grad);
}
.price-card.featured:hover{transform:scale(1.04) translateY(-4px);}
.price-flag{
  position:absolute;top:20px;right:20px;background:var(--accent-500);color:#fff;
  font-size:12px;font-weight:600;border-radius:999px;padding:4px 12px;
}
.price-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.price-card .price-desc{font-size:13px;color:var(--ink-600);margin-bottom:18px;}
.price-amount{font-size:38px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.1;}
.price-amount small{font-size:14px;font-weight:600;color:var(--ink-400);margin-left:4px;}
.price-list{margin:22px 0 26px;display:grid;gap:12px;}
.price-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-600);}
.price-list li i{color:var(--brand-500);margin-top:6px;font-size:13px;flex:none;}
.price-list li.off{color:var(--ink-400);}
.price-list li.off i{color:var(--ink-400);}
.price-card .btn{width:100%;}

/* 资讯 */
.news-section{background:var(--surface);border-top:1px solid var(--line);}
.news-feature{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:box-shadow .32s ease-out,transform .32s ease-out;
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-feature:hover h3 a{color:var(--brand-700);}
.news-feature-media img{width:100%;aspect-ratio:16 / 10;object-fit:cover;background:#EAF6F1;}
.news-feature-body{padding:24px;}
.news-feature-body h3{font-size:21px;font-weight:600;line-height:1.45;margin:12px 0 10px;}
.news-feature-body h3 a{color:var(--ink-900);}
.news-feature-body p{font-size:15px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-mini{
  display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:16px;box-shadow:var(--shadow-1);margin-bottom:16px;
  transition:box-shadow .32s ease-out,transform .32s ease-out,background .2s ease-out;
}
.news-mini:last-child{margin-bottom:0;}
.news-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);background:#F1F7F4;}
.news-mini img{width:96px;height:72px;object-fit:cover;border-radius:12px;background:#EAF6F1;}
.news-mini h3{font-size:16px;font-weight:600;line-height:1.5;margin:6px 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-mini h3 a{color:var(--ink-900);}
.news-mini:hover h3 a{color:var(--brand-700);}
.meta{font-size:13px;color:var(--ink-400);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-400);display:inline-block;}
.news-empty{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-lg);
  background:var(--bg);
}
.news-empty i{font-size:30px;color:var(--brand-300);}
.news-empty p{color:var(--ink-600);margin:14px 0 20px;}

/* FAQ */
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-acc .accordion-button{
  font-size:16px;font-weight:600;color:var(--ink-900);background:#fff;
  padding:18px 20px;box-shadow:none;display:flex;align-items:center;gap:12px;
  transition:color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-700);background:#fff;box-shadow:inset 4px 0 0 var(--accent-500);
}
.faq-acc .accordion-button:focus{box-shadow:inset 4px 0 0 var(--accent-500),0 0 0 3px rgba(23,165,122,.15);}
.faq-acc .accordion-button::after{
  content:"";width:16px;height:16px;margin-left:auto;flex:none;
  background:
    linear-gradient(var(--brand-700),var(--brand-700)) center/16px 2px no-repeat,
    linear-gradient(var(--brand-700),var(--brand-700)) center/2px 16px no-repeat;
  transition:transform .2s ease-out,background .2s ease-out;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  background:linear-gradient(var(--accent-500),var(--accent-500)) center/16px 2px no-repeat;
  transform:rotate(180deg);
}
.faq-acc .accordion-body{font-size:15px;color:var(--ink-600);padding:0 20px 20px;line-height:1.85;}

/* 咨询表单 */
.consult-section{background:var(--surface);border-top:1px solid var(--line);}
.consult-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-1);
}
.consult-card h3{font-size:20px;font-weight:600;margin-bottom:6px;}
.consult-card .form-note{font-size:14px;color:var(--ink-600);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.field .req{color:var(--accent-500);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:var(--radius-sm);background:var(--soft);
  border:1px solid transparent;padding:0 14px;font-size:15px;outline:none;
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,165,122,.15);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400);}
.form-privacy{font-size:12px;color:var(--ink-400);margin-top:14px;}
.check-list{display:grid;gap:12px;margin-top:20px;}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-600);}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;
  position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%;
  background:var(--mint);color:var(--brand-700);display:grid;place-items:center;
}

/* CTA 通栏 */
.cta-band{
  background:var(--grad);border-radius:var(--radius-lg);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:300px;height:300px;border-radius:50%;
  border:2px solid rgba(255,255,255,.5);opacity:.12;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:#fff;margin-bottom:10px;}
.cta-band p{font-size:15px;color:#EAF6F1;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#D7E7E1;margin-top:72px;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.site-footer p{font-size:14px;color:#D7E7E1;line-height:1.8;}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .brand-mark{width:32px;height:32px;}
.footer-logo .brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#D7E7E1;}
.footer-links a:hover{color:var(--brand-300);}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.08);
  display:grid;place-items:center;color:#D7E7E1;font-size:14px;
}
.footer-social a:hover{background:var(--accent-500);color:#fff;}
.footer-meta{font-size:13px;color:#9FBDB3;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#9FBDB3;}
.to-top{
  width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;
  display:grid;place-items:center;font-size:14px;
}
.to-top:hover{background:var(--accent-500);color:#fff;}

/* 响应式 */
@media (max-width:1199.98px){
  .case-scroller{grid-auto-columns:40%;}
}
@media (max-width:991.98px){
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:48px 0;}
  .main-nav{height:60px;}
  .navbar-toggler{display:grid;place-items:center;margin-left:auto;}
  .nav-collapse{
    position:fixed;top:60px;left:0;right:0;bottom:0;background:#fff;
    padding:8px 20px 28px;overflow-y:auto;display:block;
    border-top:1px solid var(--line);box-shadow:0 18px 40px rgba(16,35,29,.12);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list .nav-link{height:48px;padding:0;border-bottom:1px solid var(--line);}
  .nav-list .nav-link::after{display:none;}
  .nav-list .nav-link.active{color:var(--brand-700);box-shadow:inset 4px 0 0 var(--accent-500);padding-left:10px;}
  .nav-tools{flex-direction:column;align-items:stretch;gap:12px;margin-top:20px;}
  .nav-search{width:100%;}
  .nav-cta{width:100%;}
  .hero{min-height:480px;padding:48px 0 56px;}
  .hero-sub{font-size:16px;}
  .hero-visual{margin-top:8px;}
  .hero-visual img{aspect-ratio:16 / 10;height:280px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;padding:28px 0;}
  .feature-grid{grid-template-columns:1fr;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .step-line{display:none;}
  .scene-row{grid-template-columns:1fr;gap:24px;padding:28px 0;}
  .scene-row.reverse .scene-media{order:0;}
  .case-scroller{grid-auto-columns:62%;}
  .price-grid{grid-template-columns:1fr;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-4px);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .section{padding:40px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .hero{min-height:420px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-facts{gap:18px;}
  .stat-grid{grid-template-columns:1fr;gap:16px;}
  .step-grid{grid-template-columns:1fr;}
  .case-scroller{grid-auto-columns:82%;}
  .feature-wide{grid-template-columns:1fr;padding:22px;}
  .news-mini{grid-template-columns:80px 1fr;padding:14px;}
  .news-mini img{width:80px;height:64px;}
  .consult-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --brand-700:#0F6B57;
  --brand-900:#0A3A2E;
  --brand-500:#17A57A;
  --brand-300:#7FD9B4;
  --accent-500:#FF7A18;
  --accent-300:#FFC53D;
  --ink-900:#10231D;
  --ink-600:#4B5F58;
  --ink-400:#8A9A94;
  --line:#E3EAE7;
  --bg:#F6F9F7;
  --surface:#FFFFFF;
  --soft:#F1F7F4;
  --soft-2:#EAF6F1;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(16,35,29,.05),0 10px 28px rgba(16,35,29,.07);
  --shadow-md:0 1px 2px rgba(16,35,29,.05),0 14px 34px rgba(16,35,29,.09);
  --shadow-lg:0 18px 44px rgba(15,107,87,.16);
  --grad:linear-gradient(135deg,#0F6B57 0%,#17A57A 58%,#7FD9B4 100%);
  --bs-primary:#0F6B57;
  --bs-primary-rgb:15,107,87;
  --bs-body-bg:#F6F9F7;
  --bs-body-color:#10231D;
  --bs-border-radius:14px;
  --bs-border-color:#E3EAE7;
  --bs-link-color:#0F6B57;
  --bs-link-hover-color:#FF7A18;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--accent-500);}
a:visited{color:var(--brand-700);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (max-width:991.98px){.container{padding-left:20px;padding-right:20px;}}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(16,35,29,.05);
}
.main-nav{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:15px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.2px;}
.brand-sub{font-size:11px;color:var(--ink-400);letter-spacing:.4px;}
.navbar-toggler{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-900);align-items:center;justify-content:center;
}
.navbar-toggler:hover{background:var(--soft);}
.nav-collapse{display:flex;align-items:center;justify-content:space-between;flex:1;gap:24px;}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none;}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 12px;position:relative;
  font-size:15px;font-weight:600;color:var(--ink-600);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;border-radius:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-700);}
.nav-tools{display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:230px;padding:0 14px;
  background:#F1F5F3;border-radius:999px;border:1px solid transparent;transition:all .2s ease-out;
}
.nav-search i{color:var(--ink-400);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink-900);
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,165,122,.15);}
.nav-cta{height:44px;padding:0 22px;font-size:15px;}

/* ---------- buttons ---------- */
.btn{border-radius:999px;font-weight:600;transition:all .2s ease-out;}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;background:var(--accent-500);border:1px solid var(--accent-500);
  color:#fff;font-size:15px;
}
.btn-accent:hover,.btn-accent:focus{
  background:#E86A0C;border-color:#E86A0C;color:#fff;transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(255,122,24,.28);
}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;background:transparent;border:1px solid var(--brand-700);
  color:var(--brand-700);font-size:15px;
}
.btn-outline-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;background:transparent;border:1px solid rgba(255,255,255,.6);
  color:#fff;font-size:15px;
}
.btn-ghost-light:hover{background:#fff;border-color:#fff;color:var(--brand-900);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}

/* ---------- page head ---------- */
.page-head{background:var(--soft);border-bottom:1px solid var(--line);padding:56px 0 48px;}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb-nav a{color:var(--ink-400);}
.breadcrumb-nav a:hover{color:var(--brand-700);}
.breadcrumb-nav .current{color:var(--ink-600);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--soft-2);color:var(--brand-700);font-size:12px;font-weight:600;margin-bottom:16px;
}
.page-head h1{
  font-size:clamp(26px,3.4vw,40px);line-height:1.24;letter-spacing:-.5px;font-weight:700;
  max-width:920px;
}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--ink-400);}
.meta-row i{margin-right:4px;}
.meta-row .dot{color:var(--line);}
.meta-row .cat{color:var(--brand-700);font-weight:600;}

/* ---------- article layout ---------- */
.main-wrap{padding:56px 0 72px;}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px 40px;box-shadow:var(--shadow-sm);
}
.article-body{max-width:780px;font-size:17px;line-height:1.95;color:var(--ink-900);}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;color:#1B312A;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);line-height:1.32;margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.35em;width:4px;height:20px;border-radius:2px;background:var(--accent-500);
}
.article-body h3{font-size:19px;line-height:1.45;margin:26px 0 12px;}
.article-body h4{font-size:17px;margin:22px 0 10px;}
.article-body ul{list-style:none;margin:0 0 18px;padding-left:20px;}
.article-body ul li{position:relative;margin-bottom:8px;}
.article-body ul li::before{
  content:"";position:absolute;left:-16px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand-500);
}
.article-body ol{list-style:none;counter-reset:item;margin:0 0 18px;padding-left:0;}
.article-body ol li{counter-increment:item;position:relative;padding-left:36px;margin-bottom:10px;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.4em;width:22px;height:22px;border-radius:6px;
  background:var(--brand-700);color:#fff;font-size:12px;font-weight:600;display:grid;place-items:center;
}
.article-body blockquote{
  background:var(--soft);border-left:4px solid var(--brand-700);border-radius:16px;
  padding:18px 22px;margin:0 0 20px;color:var(--ink-600);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:22px auto;width:100%;height:auto;object-fit:cover;background:var(--soft-2);}
.article-body figure{margin:22px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-400);margin-top:8px;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-decoration-color:rgba(15,107,87,.35);text-underline-offset:3px;}
.article-body a:hover{color:var(--accent-500);text-decoration-color:rgba(255,122,24,.5);}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:15px;}
.article-body table th,.article-body table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body table th{background:var(--soft);color:var(--brand-700);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-empty{
  text-align:center;padding:64px 20px;border:1px dashed var(--line);border-radius:var(--radius-md);background:var(--soft);
}
.article-empty i{font-size:34px;color:var(--brand-300);display:block;margin-bottom:14px;}
.article-empty h3{margin-bottom:8px;}
.article-empty p{color:var(--ink-600);margin-bottom:20px;}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:var(--soft-2);color:var(--brand-700);font-size:13px;font-weight:600;border:1px solid transparent;transition:all .2s ease-out;
}
.tag:hover{border-color:var(--accent-500);color:var(--accent-500);}

/* ---------- post nav ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px;}
.post-nav a{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px 22px;box-shadow:var(--shadow-sm);transition:all .32s ease-out;
}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(15,107,87,.18);}
.post-nav span{display:block;font-size:12px;color:var(--ink-400);margin-bottom:8px;}
.post-nav strong{display:block;font-size:15px;font-weight:600;color:var(--ink-900);line-height:1.5;max-height:3em;overflow:hidden;}
.post-nav a:hover strong{color:var(--brand-700);}
.back-row{margin-top:22px;}

/* ---------- sidebar ---------- */
.side-inner{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-sm);
}
.side-title{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:700;margin-bottom:18px;}
.side-title::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--accent-500);}
.side-list{display:flex;flex-direction:column;gap:14px;}
.side-item{display:flex;gap:12px;align-items:flex-start;padding-bottom:14px;border-bottom:1px solid var(--line);}
.side-item:last-child{border-bottom:0;padding-bottom:0;}
.side-item img{width:88px;height:66px;border-radius:12px;object-fit:cover;background:var(--soft-2);flex:0 0 auto;}
.side-item strong{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--ink-900);max-height:4.5em;overflow:hidden;}
.side-item:hover strong{color:var(--brand-700);}
.side-item em{display:block;font-style:normal;font-size:12px;color:var(--ink-400);margin-top:6px;}

/* ---------- form ---------- */
.form-card .side-title{margin-bottom:6px;}
.form-hint{font-size:13px;color:var(--ink-600);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.field label .req{color:var(--accent-500);}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:12px;background:#F1F5F3;
  border:1px solid transparent;color:var(--ink-900);font-size:15px;outline:none;transition:all .2s ease-out;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-600) 50%),linear-gradient(135deg,var(--ink-600) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,165,122,.15);}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400);}
.form-note{font-size:12px;color:var(--ink-400);margin-top:12px;line-height:1.6;}

/* ---------- faq ---------- */
.faq-section{padding:0 0 72px;}
.section-head{margin-bottom:32px;max-width:760px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:var(--soft-2);color:var(--brand-700);font-size:12px;font-weight:600;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:12px;}
.section-head p{color:var(--ink-600);font-size:15px;}
.accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  position:relative;width:100%;text-align:left;background:var(--surface);border:0;padding:20px 56px 20px 22px;
  font-size:16px;font-weight:600;color:var(--ink-900);box-shadow:none;transition:color .2s ease-out;
}
.accordion-button::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:500;color:var(--brand-700);line-height:1;transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed){color:var(--brand-700);}
.accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%) rotate(0deg);}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(23,165,122,.15);}
.accordion-item::before{content:"";display:none;}
.accordion-body{padding:0 22px 22px;color:var(--ink-600);font-size:15px;line-height:1.8;}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:4px solid var(--accent-500);}

/* ---------- cta ---------- */
.cta-band{
  background:var(--grad);border-radius:var(--radius-lg);padding:48px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  margin-bottom:72px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:10px;}
.cta-band p{color:#EAF6F1;font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#D7E7E1;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.site-footer p{color:#B9D2C9;font-size:14px;line-height:1.8;}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-logo .brand-name{color:#fff;font-size:17px;}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:#D7E7E1;transition:all .2s ease-out;
}
.footer-social a:hover{background:var(--accent-500);color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#B9D2C9;font-size:14px;}
.footer-links a:hover{color:var(--brand-300);}
.footer-meta{font-size:13px;color:#9FBEB3;margin-bottom:8px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#9FBEB3;}
.to-top{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:#D7E7E1;transition:all .2s ease-out;
}
.to-top:hover{background:var(--accent-500);color:#fff;transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-search{width:200px;}
}
@media (max-width:991.98px){
  .main-nav{height:60px;}
  .navbar-toggler{display:inline-flex;}
  .nav-collapse{
    position:fixed;left:0;right:0;top:60px;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:12px 20px 24px;border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(16,35,29,.10);max-height:calc(100vh - 60px);overflow-y:auto;z-index:1031;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list li{border-bottom:1px solid var(--line);}
  .nav-list li:last-child{border-bottom:0;}
  .nav-link{height:48px;padding:0;font-size:15px;}
  .nav-link::after{left:0;right:auto;width:52px;bottom:8px;}
  .nav-tools{flex-direction:column;align-items:stretch;gap:12px;margin-top:18px;}
  .nav-search{width:100%;height:44px;}
  .nav-cta{width:100%;}
  .page-head{padding:40px 0 34px;}
  .main-wrap{padding:40px 0 56px;}
  .article-card{padding:26px 24px;}
  .side-inner{position:static;}
  .cta-band{padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-body{font-size:16.5px;}
}
@media (max-width:767.98px){
  .post-nav{grid-template-columns:1fr;}
  .article-body{font-size:16px;line-height:1.9;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:575.98px){
  .brand-name{font-size:16px;}
  .article-card{padding:22px 18px;border-radius:18px;}
  .side-card{padding:20px;border-radius:18px;}
  .cta-band{border-radius:18px;padding:28px 22px;}
  .cta-actions .btn{width:100%;}
  .page-head h1{font-size:24px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --brand-700:#0F6B57;
  --brand-900:#0A3A2E;
  --brand-500:#17A57A;
  --brand-300:#7FD9B4;
  --accent-500:#FF7A18;
  --accent-300:#FFC53D;
  --ink-900:#10231D;
  --ink-600:#4B5F58;
  --ink-400:#8A9A94;
  --line:#E3EAE7;
  --bg:#F6F9F7;
  --surface:#FFFFFF;
  --soft:#F1F7F4;
  --grad:linear-gradient(135deg,#0F6B57 0%,#17A57A 58%,#7FD9B4 100%);
  --shadow-sm:0 1px 2px rgba(16,35,29,.05), 0 10px 28px rgba(16,35,29,.07);
  --shadow-lg:0 18px 44px rgba(15,107,87,.16);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --bs-primary:#0F6B57;
  --bs-primary-rgb:15,107,87;
  --bs-body-bg:#F6F9F7;
  --bs-body-color:#10231D;
  --bs-border-color:#E3EAE7;
  --bs-border-radius:16px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#0F6B57;
  --bs-link-hover-color:#FF7A18;
  --bs-body-font-size:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out}
a:hover{color:var(--accent-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media(max-width:991px){.container{padding-left:20px;padding-right:20px}}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(16,35,29,.05);
}
.main-nav{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;flex:0 0 32px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.3px;color:var(--ink-900)}
.brand-sub{font-size:11px;color:var(--ink-400);letter-spacing:.4px}
.nav-collapse{display:flex;align-items:center;justify-content:space-between;flex:1;gap:20px}
.nav-list{display:flex;align-items:center;gap:4px;margin:0}
.nav-link{
  display:inline-block;padding:10px 12px;font-size:15px;font-weight:600;color:var(--ink-600);
  position:relative;border-radius:10px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-700)}
.nav-tools{display:flex;align-items:center;gap:12px}
.nav-search{
  position:relative;display:flex;align-items:center;
  background:#F1F5F3;border-radius:999px;height:40px;width:230px;padding:0 14px;
  border:1px solid transparent;transition:background-color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search i{color:var(--ink-400);font-size:13px;margin-right:8px}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink-900);
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(23,165,122,.15)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border:0;border-radius:999px;
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  transition:background-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-accent:hover{background:#E86A0C;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,24,.28)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.nav-cta{height:40px;padding:0 20px;font-size:14px}
.btn-ghost-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  border:1px solid var(--brand-700);background:transparent;color:var(--brand-700);
  font-size:15px;font-weight:600;transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-ghost-line:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  border:1px solid rgba(255,255,255,.6);background:transparent;color:#fff;
  font-size:15px;font-weight:600;transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-ghost:hover{background:#fff;color:var(--brand-900);transform:translateY(-2px)}
.navbar-toggler{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink-900);align-items:center;justify-content:center;font-size:18px;
}
.mobile-cta{display:none}
@media(max-width:991px){
  .main-nav{min-height:60px}
  .navbar-toggler{display:inline-flex}
  .mobile-cta{display:inline-flex;height:40px;padding:0 16px;font-size:14px}
  .nav-collapse{
    display:block;position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 30px rgba(16,35,29,.10);
    padding:8px 20px 22px;
  }
  .nav-collapse.collapse:not(.show){display:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list li{border-bottom:1px solid var(--line)}
  .nav-link{display:block;padding:14px 4px;line-height:20px;font-size:16px}
  .nav-link::after{display:none}
  .nav-tools{flex-direction:column;align-items:stretch;margin-top:16px}
  .nav-search{width:100%;height:48px}
  .nav-tools .btn-accent{width:100%}
}

/* 页头 */
.page-head{
  position:relative;overflow:hidden;
  background:var(--soft);
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-head::after{
  content:"";position:absolute;right:-140px;top:-160px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(15,107,87,.12);pointer-events:none;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(15,107,87,.06) 0 2px,transparent 2px 14px);
  opacity:.6;pointer-events:none;
}
.page-head .container{position:relative;z-index:1}
.crumb{font-size:13px;color:var(--ink-400);margin-bottom:16px;display:flex;flex-wrap:wrap;gap:6px}
.crumb a{color:var(--ink-400)}
.crumb a:hover{color:var(--brand-700)}
.crumb .current{color:var(--ink-600)}
.page-head h1{
  font-size:clamp(30px,4.6vw,46px);line-height:1.16;font-weight:700;letter-spacing:-.5px;max-width:860px;
}
.page-head .lead{max-width:700px;margin-top:16px;color:var(--ink-600);font-size:16px}
.page-head .head-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* 数据带 */
.metric-band{
  background:var(--grad);color:#fff;padding:34px 0;
}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  border-radius:14px;padding:14px 18px;
}
.metric b{display:block;font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2}
.metric span{display:block;font-size:12px;color:#EAF6F1;margin-top:2px}
@media(max-width:767px){.metric-grid{grid-template-columns:repeat(2,1fr)}}

/* 主体 */
.section{padding:72px 0}
@media(max-width:767px){.section{padding:48px 0}}
.section-head{margin-bottom:32px;max-width:760px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700}
.section-head p{margin-top:10px;color:var(--ink-600)}

/* 锚点侧栏 */
.anchor-card{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);
}
.anchor-card h3{font-size:13px;font-weight:600;color:var(--ink-400);letter-spacing:.6px;margin-bottom:12px}
.anchor-list a{
  display:block;padding:10px 12px;border-left:4px solid transparent;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--ink-600);line-height:1.5;
}
.anchor-list a:hover{background:var(--soft);color:var(--brand-700)}
.anchor-list a.current{border-left-color:var(--accent-500);color:var(--brand-700);background:var(--soft)}
.anchor-tip{
  margin-top:16px;padding:14px;border-radius:var(--radius-sm);background:var(--soft);
  font-size:13px;color:var(--ink-600);line-height:1.6;
}
@media(max-width:991px){
  .anchor-card{position:static;margin-bottom:28px}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px}
  .anchor-list a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:14px}
  .anchor-list a.current{border-color:var(--accent-500);background:#fff}
}

/* 内容分组卡 */
.group{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-sm);margin-bottom:32px;
  transition:box-shadow .32s ease-out,transform .32s ease-out;
  scroll-margin-top:96px;
}
.group:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.group-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:18px}
.group-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:14px;background:var(--brand-300);
  color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-size:18px;
}
.group h2{font-size:22px;line-height:1.4;font-weight:700}
.group h2 .num{font-variant-numeric:tabular-nums;color:var(--accent-500);margin-right:8px;font-size:16px;vertical-align:2px}
.group .desc{color:var(--ink-600);font-size:16px;margin-bottom:16px}
.point-list li{
  position:relative;padding-left:24px;margin-bottom:10px;color:var(--ink-600);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-500);
}
.point-list li strong{color:var(--ink-900);font-weight:600}
.group-media{margin-top:20px;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line)}
.group-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#EAF6F1}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.data-badge{
  background:#fff;border:1px solid rgba(15,107,87,.16);border-radius:14px;padding:12px 16px;min-width:150px;
}
.data-badge b{display:block;font-size:28px;font-weight:700;color:var(--accent-500);font-variant-numeric:tabular-nums;line-height:1.2}
.data-badge span{display:block;font-size:12px;color:var(--ink-600);margin-top:2px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand-700);
  background:none;border:0;padding:0;margin-top:18px;
}
.text-link i{transition:transform .2s ease-out}
.text-link:hover i{transform:translateX(3px)}

/* 提示条 */
.notice{
  background:var(--soft);border-radius:var(--radius-md);padding:16px 20px;
  font-size:14px;color:var(--ink-600);border:1px solid var(--line);
}
.notice strong{color:var(--brand-700)}

/* FAQ */
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;
}
.faq-item h3{margin:0}
.faq-q{
  width:100%;text-align:left;background:#fff;border:0;position:relative;
  padding:18px 52px 18px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
  display:block;cursor:pointer;transition:color .2s ease-out;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;
  background:var(--accent-500);transform:scaleY(0);transition:transform .2s ease-out;
}
.faq-q::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:600;color:var(--brand-700);line-height:1;transition:transform .2s ease-out,color .2s ease-out;
}
.faq-q[aria-expanded="true"]{color:var(--brand-700)}
.faq-q[aria-expanded="true"]::before{transform:scaleY(1)}
.faq-q[aria-expanded="true"]::after{content:"−";color:var(--accent-500)}
.faq-a{padding:0 22px 20px;color:var(--ink-600);font-size:15px;line-height:1.8}

/* 走廊入口卡 */
.entry-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .32s ease-out,box-shadow .32s ease-out,border-color .2s ease-out;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(15,107,87,.18)}
.entry-card h4{font-size:17px;font-weight:600;margin-bottom:8px}
.entry-card p{color:var(--ink-600);font-size:15px}
.entry-card .tag{color:var(--brand-700)}

/* CTA 通栏 */
.cta-band{background:var(--grad);color:#fff;padding:64px 0}
.cta-band h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700}
.cta-band p{margin-top:12px;color:#EAF6F1;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
@media(max-width:575px){.cta-actions .btn-accent,.cta-actions .btn-ghost{width:100%}}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#D7E7E1;padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .brand-name{color:#fff}
.footer-logo .brand-mark{width:30px;height:30px;font-size:14px}
.site-footer p{color:#D7E7E1;font-size:14px;line-height:1.8}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#D7E7E1;font-size:14px}
.footer-links a:hover{color:var(--brand-300)}
.footer-meta{font-size:13px;color:#B9CFC8;margin-bottom:6px}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
  display:inline-flex;align-items:center;justify-content:center;color:#D7E7E1;
}
.footer-social a:hover{color:var(--brand-900);background:var(--brand-300);border-color:var(--brand-300)}
.footer-bottom{
  margin-top:40px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#B9CFC8}
.to-top{
  width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.10);
  display:inline-flex;align-items:center;justify-content:center;color:#D7E7E1;
  transition:background-color .2s ease-out,color .2s ease-out;
}
.to-top:hover{background:var(--accent-500);color:#fff}
@media(max-width:991px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding-top:44px}
}

/* roulang page: category2 */
:root{
  --brand-700:#0F6B57;
  --brand-900:#0A3A2E;
  --brand-500:#17A57A;
  --brand-300:#7FD9B4;
  --accent-500:#FF7A18;
  --accent-600:#E86A0C;
  --accent-300:#FFC53D;
  --ink-900:#10231D;
  --ink-600:#4B5F58;
  --ink-400:#8A9A94;
  --line:#E3EAE7;
  --bg:#F6F9F7;
  --surface:#FFFFFF;
  --soft:#EAF6F1;
  --soft-2:#F1F7F4;
  --soft-3:#F1F5F3;
  --grad:linear-gradient(135deg,#0F6B57 0%,#17A57A 58%,#7FD9B4 100%);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(16,35,29,.05),0 10px 28px rgba(16,35,29,.07);
  --shadow-2:0 18px 44px rgba(15,107,87,.16);
  --ease:200ms ease-out;
  --ease-slow:320ms ease-out;
  --bs-primary:#0F6B57;
  --bs-body-bg:#F6F9F7;
  --bs-body-color:#10231D;
  --bs-border-radius:16px;
  --bs-link-color:#0F6B57;
  --bs-link-hover-color:#FF7A18;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#EAF6F1;}
a{color:var(--brand-700);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent-500);text-decoration:underline;text-underline-offset:3px;}
a:visited{color:var(--brand-700);}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
h1,h2,h3,h4{margin:0 0 16px;color:var(--ink-900);}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
section[id],div[id]{scroll-margin-top:96px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(16,35,29,.05);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:none;
  text-decoration:none;
}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:32px;height:32px;
  flex:none;
  border-radius:10px;
  background:var(--grad);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.2px;}
.brand-sub{font-size:11px;color:var(--ink-400);letter-spacing:.2px;}
.brand:hover .brand-name{color:var(--brand-700);}
.nav-collapse{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex:1 1 auto;
  gap:24px;
}
.nav-collapse.collapse{display:flex;}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 12px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-600);
  border-bottom:2px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.nav-link:hover{color:var(--brand-700);border-bottom-color:var(--accent-500);text-decoration:none;}
.nav-link.active{color:var(--brand-700);border-bottom-color:var(--accent-500);}
.nav-tools{display:flex;align-items:center;gap:14px;flex:none;}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
}
.nav-search i{
  position:absolute;
  left:14px;
  color:var(--ink-400);
  font-size:13px;
  pointer-events:none;
}
.nav-search input{
  width:228px;
  height:40px;
  border-radius:999px;
  border:1px solid transparent;
  background:var(--soft-3);
  padding:0 16px 0 38px;
  font-size:14px;
  color:var(--ink-900);
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search input:focus{
  outline:none;
  background:#fff;
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(23,165,122,.15);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease-slow),border-color var(--ease);
  text-decoration:none;
}
.btn:hover{text-decoration:none;}
.btn-accent{
  background:var(--accent-500);
  color:#fff;
  box-shadow:0 1px 2px rgba(16,35,29,.05),0 8px 20px rgba(255,122,24,.18);
}
.btn-accent:hover{
  background:var(--accent-600);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(255,122,24,.28);
}
.btn-accent:active{transform:translateY(0);}
.btn-outline-brand{
  background:transparent;
  border-color:var(--brand-700);
  color:var(--brand-700);
}
.btn-outline-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.6);
  color:#fff;
}
.btn-ghost:hover{background:#fff;color:var(--brand-900);transform:translateY(-2px);}
.nav-cta{height:42px;padding:0 20px;font-size:14px;}
.navbar-toggler{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--ink-900);
  font-size:17px;
}
.navbar-toggler:focus{outline:2px solid var(--brand-500);outline-offset:2px;}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  display:flex;
  align-items:center;
  min-height:360px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(15,107,87,.90) 0%,rgba(23,165,122,.87) 58%,rgba(127,217,180,.84) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:420px;height:420px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:50%;
  pointer-events:none;
}
.page-hero__inner{
  position:relative;
  z-index:2;
  padding-top:56px;
  padding-bottom:56px;
  color:#fff;
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(234,246,241,.78);
  margin-bottom:20px;
}
.breadcrumb-line a{color:rgba(234,246,241,.92);}
.breadcrumb-line a:hover{color:#fff;text-decoration:underline;}
.breadcrumb-line .is-current{color:rgba(255,255,255,.86);}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.45);
  background:rgba(255,255,255,.12);
  font-size:12px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.16;
  font-weight:700;
  letter-spacing:-.5px;
  max-width:900px;
  margin-bottom:16px;
}
.page-hero__lead{
  color:#EAF6F1;
  font-size:16px;
  line-height:1.8;
  max-width:640px;
  margin:0;
}

/* ============ 交替图文 ============ */
.feature-row{padding:72px 0;}
.feature-row.is-alt{background:var(--surface);}
.feature-row__inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.feature-row--reverse .feature-media{order:2;}
.feature-media{
  position:relative;
  margin:0;
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  background:#EAF6F1;
}
.feature-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform var(--ease-slow);
}
.feature-media:hover img{transform:scale(1.03);}
.feature-media figcaption{
  position:absolute;
  left:16px;
  bottom:16px;
  padding:6px 12px;
  border-radius:999px;
  background:rgba(10,58,46,.72);
  color:#EAF6F1;
  font-size:12px;
  letter-spacing:.2px;
}
.feature-copy h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:18px;
}
.feature-copy p{font-size:16px;line-height:1.85;color:var(--ink-600);}
.num-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;height:46px;
  border-radius:14px;
  background:var(--soft);
  color:var(--brand-700);
  font-size:16px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:10px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
}
.link-more i{transition:transform var(--ease);font-size:13px;}
.link-more:hover{color:var(--accent-500);text-decoration:none;}
.link-more:hover i{transform:translateX(3px);}

/* ============ 数据带 ============ */
.stat-band{
  background:var(--soft);
  padding:64px 0;
}
.stat-band__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px;
  margin-bottom:28px;
}
.stat-band__head h2{
  font-size:24px;
  font-weight:700;
  margin:0;
}
.stat-band__head p{
  margin:0;
  font-size:14px;
  color:var(--ink-600);
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-card{
  background:#fff;
  border:1px solid rgba(15,107,87,.16);
  border-radius:14px;
  padding:20px 22px;
  box-shadow:0 1px 2px rgba(16,35,29,.05),0 10px 28px rgba(16,35,29,.05);
  transition:transform var(--ease-slow),box-shadow var(--ease-slow);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.stat-value{
  font-size:32px;
  font-weight:700;
  color:var(--accent-500);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  margin-bottom:6px;
}
.stat-label{font-size:12px;color:var(--ink-600);line-height:1.6;}

/* ============ 入口卡 ============ */
.entries{padding:72px 0;}
.section-head{margin-bottom:36px;max-width:720px;}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.25;
  margin-bottom:12px;
}
.section-head p{color:var(--ink-600);font-size:16px;margin:0;}
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  padding:28px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease-slow),box-shadow var(--ease-slow),border-color var(--ease);
}
.entry-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(15,107,87,.18);
}
.entry-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-300);
  color:var(--brand-700);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  margin-bottom:18px;
}
.entry-card h3{
  font-size:20px;
  line-height:1.4;
  font-weight:600;
  margin-bottom:10px;
}
.entry-card p{font-size:15px;color:var(--ink-600);margin-bottom:18px;}
.entry-card .link-more{margin-top:auto;}

/* ============ FAQ ============ */
.faq-section{padding:72px 0;background:var(--surface);}
.faq-accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:#fff;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:0 1px 2px rgba(16,35,29,.04);
}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  position:relative;
  width:100%;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  background:#fff;
  border:0;
  box-shadow:none;
  display:flex;
  align-items:center;
  gap:12px;
  text-align:left;
}
.faq-accordion .accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:16%;
  height:68%;
  width:4px;
  border-radius:0 4px 4px 0;
  background:transparent;
  transition:background var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-700);
  background:#fff;
}
.faq-accordion .accordion-button:not(.collapsed)::before{background:var(--accent-500);}
.faq-accordion .accordion-button:focus{box-shadow:none;border:0;}
.faq-accordion .accordion-button::after{
  content:"+";
  flex:none;
  margin-left:auto;
  width:32px;height:32px;
  line-height:30px;
  text-align:center;
  font-size:20px;
  font-weight:600;
  color:var(--brand-700);
  background-image:none;
  border-radius:10px;
  background-color:var(--soft);
  transform:none;
  transition:transform var(--ease-slow),color var(--ease),background-color var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"−";
  color:#fff;
  background-color:var(--accent-500);
  transform:rotate(180deg);
}
.faq-accordion .accordion-body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
}

/* ============ CTA 通栏 ============ */
.cta-section{padding:72px 0;}
.cta-band{
  position:relative;
  border-radius:var(--radius-lg);
  background:var(--grad);
  color:#fff;
  padding:52px 48px;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px);
  opacity:.7;
  pointer-events:none;
}
.cta-band__inner{position:relative;z-index:2;max-width:720px;}
.cta-band h2{
  color:#fff;
  font-size:clamp(24px,3vw,32px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:12px;
}
.cta-band p{color:#EAF6F1;font-size:16px;margin-bottom:24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:#D7E7E1;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin:0 0 16px;
}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(215,231,225,.82);margin:0 0 8px;}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-logo .brand-name{color:#fff;font-size:17px;}
.footer-links a{
  display:block;
  padding:7px 0;
  font-size:14px;
  color:#D7E7E1;
}
.footer-links a:hover{color:var(--brand-300);text-decoration:none;}
.footer-meta{font-size:13px;color:rgba(215,231,225,.72);}
.footer-social{display:flex;gap:12px;margin-top:16px;}
.footer-social a{
  width:38px;height:38px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#D7E7E1;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.footer-social a:hover{
  background:var(--accent-500);
  border-color:var(--accent-500);
  color:#fff;
  text-decoration:none;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:48px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
}
.footer-bottom p{margin:0;font-size:13px;color:rgba(215,231,225,.75);}
.to-top{
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.18);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#D7E7E1;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.to-top:hover{background:var(--accent-500);border-color:var(--accent-500);color:#fff;text-decoration:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search input{width:190px;}
}
@media (max-width:991.98px){
  .container{padding-left:20px;padding-right:20px;}
  .main-nav{min-height:60px;}
  .navbar-toggler{display:inline-flex;}
  .nav-collapse,
  .nav-collapse.collapse{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:#fff;
    border-top:1px solid var(--line);
    box-shadow:0 18px 40px rgba(16,35,29,.12);
    padding:8px 20px 20px;
    max-height:calc(100vh - 60px);
    overflow-y:auto;
  }
  .nav-collapse.collapse:not(.show){display:none;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{
    height:48px;
    padding:0 4px;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav-link.active,.nav-link:hover{border-bottom-color:var(--line);}
  .nav-link.active{color:var(--brand-700);}
  .nav-tools{
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    margin-top:16px;
  }
  .nav-search input{width:100%;}
  .nav-cta{width:100%;height:48px;}
  .feature-row{padding:48px 0;}
  .feature-row__inner{grid-template-columns:1fr;gap:28px;}
  .feature-row--reverse .feature-media{order:0;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .entry-grid{grid-template-columns:1fr;gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero{min-height:320px;}
}
@media (max-width:575.98px){
  .page-hero{min-height:420px;}
  .page-hero__inner{padding-top:40px;padding-bottom:40px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-band,.entries,.faq-section,.cta-section{padding:48px 0;}
  .feature-row{padding:40px 0;}
  .entry-card{padding:22px;}
  .cta-band{padding:36px 24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-accordion .accordion-button{padding:18px 18px 18px 20px;font-size:15px;}
  .faq-accordion .accordion-body{padding:0 18px 20px;}
}