/* roulang page: index */
:root{
  --brand-900:#08251C;
  --brand-700:#0C3B2E;
  --brand-500:#1E6B54;
  --mint-100:#E6F2EC;
  --mint-50:#F1F7F3;
  --accent-500:#F5A524;
  --accent-600:#D9860B;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --line:#E2E7E2;
  --text:#16211D;
  --text-muted:#5C6B64;
  --danger:#D94A3D;
  --success:#2E9E6B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --shadow-sm:0 1px 2px rgba(12,59,46,.06);
  --shadow-md:0 8px 24px rgba(12,59,46,.08);
  --shadow-lg:0 20px 48px rgba(12,59,46,.12);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);text-decoration:underline;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid rgba(245,165,36,.75);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text);font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.page-grid-bg{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(12,59,46,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(12,59,46,.028) 1px,transparent 1px);
  background-size:34px 34px;
}
.page-glow{
  position:fixed;top:-220px;left:-180px;width:620px;height:620px;z-index:-1;pointer-events:none;
  background:radial-gradient(circle,rgba(230,242,236,.9),transparent 68%);
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--mint{background:var(--mint-50);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-500);background:var(--mint-100);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;}
h2.section-title{font-size:30px;}
.section-desc{margin-top:14px;color:var(--text-muted);font-size:16px;line-height:1.85;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;padding:12px 0;
  background:rgba(246,247,244,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.nav-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-md);
  display:flex;align-items:center;gap:16px;
  padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;display:grid;place-items:center;font-size:15px;
  box-shadow:0 6px 16px rgba(12,59,46,.22);
}
.brand-name{font-size:17px;font-weight:700;color:var(--brand-900);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.nav-links::-webkit-scrollbar{display:none;}
.nav-item{
  display:flex;align-items:center;gap:9px;
  padding:7px 13px 7px 9px;border-radius:12px;
  color:var(--text-muted);font-size:14px;font-weight:500;white-space:nowrap;
  border-left:3px solid transparent;transition:all .2s ease;
}
.nav-item:hover{background:var(--mint-50);color:var(--brand-700);text-decoration:none;}
.nav-icon{
  width:30px;height:30px;border-radius:10px;flex-shrink:0;
  background:var(--mint-100);color:var(--brand-500);
  display:grid;place-items:center;font-size:13px;transition:all .2s ease;
}
.nav-item.is-active{
  background:var(--mint-100);color:var(--brand-700);font-weight:700;
  border-left-color:var(--accent-500);
}
.nav-item.is-active .nav-icon{background:#fff;color:var(--brand-700);}
.nav-cta{margin-left:auto;flex-shrink:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:12px;
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:all .22s ease;text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--accent-500);color:#2B1A00;box-shadow:0 6px 18px rgba(245,165,36,.32);}
.btn-primary:hover{background:var(--accent-600);color:#2B1A00;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-outline{background:transparent;border-color:var(--brand-500);color:var(--brand-700);}
.btn-outline:hover{background:var(--mint-100);color:var(--brand-700);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-dark{background:var(--brand-900);color:#fff;}
.btn-dark:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--mint-100);color:var(--brand-700);
}
.badge--accent{background:var(--accent-500);color:#2B1A00;}
.badge--outline{background:#fff;border:1px solid var(--accent-500);color:var(--accent-600);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(46,158,107,.16);}
.tag{
  display:inline-block;padding:4px 12px;border-radius:999px;
  background:var(--mint-50);border:1px solid var(--line);
  color:var(--brand-500);font-size:12.5px;font-weight:600;
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:48px 0 88px;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;}
.hero h1{font-size:44px;line-height:1.22;margin:18px 0 0;}
.hero h1 .mark{
  position:relative;display:inline-block;color:var(--brand-700);
}
.hero h1 .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  background:rgba(245,165,36,.35);border-radius:4px;z-index:-1;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-muted);max-width:520px;line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.trust-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:30px;font-size:13.5px;color:var(--text-muted);
}
.trust-row span{display:flex;align-items:center;gap:7px;}
.trust-row i{color:var(--brand-500);font-size:12px;}
.trust-sep{width:1px;height:16px;background:var(--line);}

.hero-visual{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  min-height:400px;box-shadow:var(--shadow-lg);
  background:var(--brand-900);
}
.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(8,37,28,.92),rgba(12,59,46,.42) 58%,rgba(8,37,28,.08));
}
.hero-badge-float{
  position:absolute;top:20px;right:20px;z-index:3;
  background:var(--accent-500);color:#2B1A00;
  border-radius:999px;padding:7px 16px;font-size:13px;font-weight:700;
  box-shadow:0 10px 26px rgba(245,165,36,.35);
}
.float-card{
  position:absolute;left:20px;bottom:20px;right:20px;z-index:3;
  background:#fff;border-radius:var(--r-lg);padding:16px 18px;
  box-shadow:var(--shadow-lg);max-width:300px;
}
.float-card .fc-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.float-card .fc-title{font-size:14px;font-weight:700;color:var(--brand-900);}
.float-card .fc-line{margin-top:10px;height:6px;border-radius:999px;background:var(--mint-100);overflow:hidden;}
.float-card .fc-line i{display:block;height:100%;width:66%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--accent-500));}
.float-card .fc-note{margin-top:8px;font-size:12.5px;color:var(--text-muted);}

/* ---------- 接入档位阶梯 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:end;}
.tier-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.tier-card:nth-child(1){min-height:290px;}
.tier-card:nth-child(2){min-height:330px;}
.tier-card:nth-child(3){min-height:370px;}
.tier-card:nth-child(4){min-height:410px;border-color:var(--brand-500);box-shadow:var(--shadow-md);}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.tier-card__no{
  width:34px;height:34px;border-radius:50%;
  border:2px solid var(--accent-500);color:var(--accent-600);
  display:grid;place-items:center;font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;background:#fff;
}
.tier-card__name{margin-top:16px;font-size:19px;font-weight:700;}
.tier-card__for{margin-top:6px;font-size:13.5px;color:var(--text-muted);}
.tier-card__list{margin-top:18px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text);}
.tier-card__list li{display:flex;gap:9px;align-items:flex-start;line-height:1.65;}
.tier-card__list i{color:var(--brand-500);font-size:12px;margin-top:7px;}
.tier-card__foot{margin-top:auto;padding-top:20px;border-top:1px dashed var(--line);}
.tier-card__num{font-size:26px;font-weight:800;color:var(--accent-600);font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.tier-card__num small{font-size:13px;font-weight:600;color:var(--text-muted);margin-left:6px;}
.tier-card__hint{font-size:12.5px;color:var(--text-muted);margin-top:4px;}
.tier-flag{
  position:absolute;top:-12px;right:16px;
  background:var(--accent-500);color:#2B1A00;font-size:12px;font-weight:700;
  padding:4px 12px;border-radius:999px;box-shadow:0 6px 16px rgba(245,165,36,.35);
}

/* ---------- 对比表 ---------- */
.compare-wrap{
  background:var(--surface);border:1px solid var(--line);
  border-radius:20px;overflow:hidden;box-shadow:var(--shadow-md);
}
table.compare{width:100%;border-collapse:collapse;}
table.compare caption{text-align:left;padding:20px 24px 0;font-size:14px;color:var(--text-muted);}
table.compare th{
  background:var(--brand-700);color:#fff;font-size:15px;font-weight:700;
  padding:18px 16px;text-align:center;white-space:nowrap;
}
table.compare th:first-child{background:var(--brand-900);text-align:left;}
table.compare th.col-best{background:var(--brand-500);position:relative;}
table.compare th.col-best .rec{
  display:inline-block;margin-left:8px;background:var(--accent-500);color:#2B1A00;
  font-size:11.5px;padding:2px 9px;border-radius:999px;vertical-align:middle;
}
table.compare td{
  padding:0 16px;height:56px;border-top:1px solid var(--line);
  font-size:14.5px;text-align:center;color:var(--text-muted);
  font-variant-numeric:tabular-nums;
}
table.compare td:first-child{text-align:left;color:var(--text);font-weight:600;}
table.compare td.col-best{background:rgba(230,242,236,.5);color:var(--brand-700);font-weight:700;}
table.compare tbody tr:hover td{background:var(--mint-50);}
table.compare tbody tr:hover td.col-best{background:var(--mint-100);}
.yes{color:var(--brand-500);font-size:15px;}
.no{color:#B6BFB9;font-size:14px;}

/* ---------- 深色限时区块 ---------- */
.dark-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--brand-900);color:#fff;padding:48px;
}
.dark-band::before{
  content:"";position:absolute;width:560px;height:560px;right:-140px;top:-200px;
  background:radial-gradient(circle,rgba(30,107,84,.8),transparent 66%);
}
.dark-band::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(245,165,36,.18),transparent 68%);
}
.dark-band__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.dark-band h2{color:#fff;font-size:28px;}
.dark-band .lead{margin-top:12px;color:rgba(255,255,255,.75);font-size:15px;max-width:440px;}
.dark-band .note{margin-top:22px;font-size:12.5px;color:rgba(255,255,255,.55);}
.countdown{display:flex;gap:12px;justify-content:flex-end;}
.count-box{
  width:78px;height:78px;border-radius:var(--r-lg);
  border:1px solid rgba(245,165,36,.55);background:rgba(245,165,36,.08);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.count-box b{font-size:26px;font-weight:800;color:var(--accent-500);line-height:1.1;}
.count-box span{font-size:11.5px;color:rgba(255,255,255,.6);margin-top:2px;}
.count-side{display:flex;flex-direction:column;gap:18px;align-items:flex-end;}
.dark-band .band-cta{width:100%;}

/* ---------- 使用反馈 ---------- */
.feedback-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;}
.feedback-figure{
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-lg);
  border:1px solid var(--line);background:#fff;
}
.feedback-figure img{width:100%;height:340px;object-fit:cover;}
.feedback-list{display:flex;flex-direction:column;gap:16px;}
.feedback-item{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand-500);
  border-radius:var(--r-lg);padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.feedback-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.feedback-item p{font-size:15px;color:var(--text);line-height:1.8;}
.feedback-meta{margin-top:12px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-muted);}
.feedback-meta .avatar{
  width:30px;height:30px;border-radius:50%;background:var(--mint-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:12px;font-weight:700;
}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
.contact-info{display:flex;flex-direction:column;gap:18px;margin-top:26px;}
.contact-line{display:flex;gap:14px;align-items:flex-start;}
.contact-line .ico{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:var(--mint-100);color:var(--brand-700);display:grid;place-items:center;font-size:15px;
}
.contact-line b{display:block;font-size:15px;color:var(--text);}
.contact-line span{font-size:13.5px;color:var(--text-muted);}
.form-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:20px;padding:32px;box-shadow:var(--shadow-lg);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:600;color:var(--text);}
.field input,.field textarea{
  width:100%;padding:13px 14px;border:1px solid var(--line);
  border-radius:10px;background:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#9AA8A1;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(245,165,36,.18);
}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);}
.field .err{font-size:12.5px;color:var(--danger);display:none;}
.field.has-error .err{display:block;}
.form-tip{font-size:12.5px;color:var(--text-muted);margin-top:14px;text-align:center;}
.form-msg{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  font-size:14px;background:rgba(46,158,107,.1);color:var(--success);
  border:1px solid rgba(46,158,107,.35);
}
.form-msg.is-visible{display:block;}

/* ---------- 内容列表（CMS） ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.post-cover{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--mint-100);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.post-card:hover .post-cover img{transform:scale(1.05);}
.post-cat{
  position:absolute;left:12px;top:12px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--brand-700);
  font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;
  box-shadow:var(--shadow-sm);
}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-title{
  font-size:19px;font-weight:700;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-title{color:var(--brand-700);}
.post-excerpt{
  font-size:14px;color:var(--text-muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums;
}
.post-meta .go{color:var(--brand-500);font-size:13px;display:inline-flex;align-items:center;gap:6px;}
.post-card:first-child{grid-column:span 2;flex-direction:row;}
.post-card:first-child .post-cover{width:47%;aspect-ratio:auto;min-height:250px;}
.post-card:first-child .post-body{width:53%;padding:26px;}
.post-card:first-child .post-title{font-size:22px;-webkit-line-clamp:3;}
.post-card:first-child .post-excerpt{-webkit-line-clamp:3;font-size:14.5px;}
.empty-state{
  grid-column:1 / -1;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--r-lg);padding:56px 24px;text-align:center;color:var(--text-muted);
}
.empty-state i{font-size:30px;color:var(--brand-500);display:block;margin-bottom:14px;}
.empty-state a{font-weight:600;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:340px 1fr;gap:48px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:14px;overflow:hidden;transition:background .25s ease,border-color .25s ease;
}
.faq-item.is-open{background:var(--mint-50);border-color:var(--brand-500);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:700;color:var(--text);
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  background:var(--mint-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:12px;transition:transform .28s ease,background .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent-500);color:#2B1A00;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 20px 20px;font-size:14px;color:var(--text-muted);line-height:1.85;}
.faq-side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-sm);margin-top:24px;
}
.faq-side-card b{display:block;font-size:16px;margin-bottom:8px;}
.faq-side-card p{font-size:13.5px;color:var(--text-muted);margin-bottom:16px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(120deg,var(--accent-500),#FFC濃);
  background:linear-gradient(120deg,#F5A524,#FFCB66);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 24px 56px rgba(245,165,36,.28);
}
.cta-band h2{color:#2B1A00;font-size:26px;}
.cta-band p{color:rgba(43,26,0,.78);font-size:15px;margin-top:10px;max-width:600px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{background:#2B1A00;color:#FFE7BF;}
.cta-band .btn-ghost:hover{background:#1A1000;color:#FFE7BF;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.7);margin-top:96px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand-500),var(--accent-500));box-shadow:none;}
.site-footer p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);}
.site-footer h3{color:#fff;font-size:15px;margin:0 0 16px;font-weight:700;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.site-footer a{color:rgba(255,255,255,.68);font-size:14px;}
.site-footer a:hover{color:var(--accent-500);text-decoration:none;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.8);font-size:14px;transition:all .2s ease;
}
.social-row a:hover{background:var(--accent-500);color:#2B1A00;transform:translateY(-2px);}
.footer-contact-item{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:12px;}
.footer-contact-item i{color:var(--accent-500);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom span{font-variant-numeric:tabular-nums;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .hero h1{font-size:38px;}
  table.compare td,table.compare th{padding-left:12px;padding-right:12px;font-size:13.5px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .hero{padding:32px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:34px;}
  .hero-visual{min-height:320px;}
  .tier-grid{grid-template-columns:repeat(2,1fr);align-items:stretch;}
  .tier-card:nth-child(n){min-height:auto;}
  .dark-band__inner{grid-template-columns:1fr;gap:28px;}
  .countdown{justify-content:flex-start;}
  .count-side{align-items:flex-start;}
  .feedback-grid,.contact-grid{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-card:first-child{grid-column:span 2;}
  .post-card:first-child .post-cover{width:44%;min-height:220px;}
  .post-card:first-child .post-body{width:56%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:860px){
  .nav-card{flex-wrap:wrap;gap:10px;}
  .nav-links{order:3;flex:1 0 100%;width:100%;}
  .nav-cta{margin-left:auto;}
}
@media (max-width:760px){
  .section{padding:56px 0;}
  h2.section-title{font-size:24px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:15.5px;}
  .hero-visual{min-height:290px;}
  .float-card{left:14px;right:14px;bottom:14px;max-width:none;}
  .post-grid{grid-template-columns:1fr;}
  .post-card:first-child{grid-column:span 1;flex-direction:column;}
  .post-card:first-child .post-cover{width:100%;aspect-ratio:16/10;min-height:0;}
  .post-card:first-child .post-body{width:100%;padding:20px;}
  .post-card:first-child .post-title{font-size:19px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .cta-band{padding:32px 24px;}
  .dark-band{padding:32px 24px;}
  .count-box{width:66px;height:66px;}
  .count-box b{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  table.compare thead{display:none;}
  table.compare,table.compare tbody,table.compare tr,table.compare td{display:block;width:100%;}
  table.compare tr{
    border:1px solid var(--line);border-radius:var(--r-lg);
    margin:0 0 16px;padding:6px 4px;background:#fff;
  }
  table.compare td{
    height:auto;border-top:0;padding:10px 14px;
    display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:right;
  }
  table.compare td::before{
    content:attr(data-label);color:var(--text-muted);font-weight:600;font-size:13.5px;text-align:left;
  }
  table.compare td:first-child{
    font-size:15px;font-weight:700;color:var(--brand-700);
    background:var(--mint-50);border-radius:10px;margin:4px;
  }
  table.compare td.col-best{background:rgba(230,242,236,.6);}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .tier-grid{grid-template-columns:1fr;}
  .tier-card{min-height:auto;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:10px;font-size:12.5px;}
  .trust-sep{display:none;}
  .countdown{gap:8px;}
  .count-box{width:60px;height:60px;}
  .brand-name{font-size:15px;}
  .btn{height:46px;padding:0 20px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#08251C;
  --brand-700:#0C3B2E;
  --brand-500:#1E6B54;
  --mint-100:#E6F2EC;
  --mint-50:#F1F7F3;
  --accent-500:#F5A524;
  --accent-600:#D9860B;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --line:#E2E7E2;
  --text:#16211D;
  --text-muted:#5C6B64;
  --danger:#D94A3D;
  --success:#2E9E6B;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:24px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(12,59,46,.06);
  --shadow-md:0 8px 24px rgba(12,59,46,.08);
  --shadow-lg:0 20px 48px rgba(12,59,46,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-700);text-decoration:underline}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--brand-700)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
h1{font-size:44px}
h2{font-size:30px}
h3{font-size:20px}
:focus-visible{outline:2px solid rgba(245,165,36,.55);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-mint{background:var(--mint-50);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{
  background:var(--brand-900);
  background-image:radial-gradient(circle at 18% 20%, rgba(30,107,84,.55), transparent 58%);
  color:rgba(255,255,255,.82);
}
.mono{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:rgba(246,247,244,.9);backdrop-filter:blur(10px)}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-md);
  padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
  color:#fff;font-size:16px;
  box-shadow:var(--shadow-sm);
}
.brand-name{font-size:17px;font-weight:700;color:var(--brand-700);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;margin-left:8px}
.nav-item{
  display:flex;align-items:center;gap:8px;
  padding:5px 12px 5px 6px;
  border-radius:12px;
  font-size:14px;font-weight:600;
  color:var(--text-muted);
  position:relative;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item:hover{background:var(--mint-50);color:var(--brand-700);text-decoration:none}
.nav-icon{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--mint-100);
  color:var(--brand-500);
  font-size:14px;
}
.nav-item.is-active{background:var(--mint-100);color:var(--brand-700)}
.nav-item.is-active .nav-icon{background:#fff;color:var(--brand-700)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--accent-500);
}
.nav-cta{margin-left:auto;flex:0 0 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border:1px solid transparent;
  border-radius:var(--radius-md);
  font-size:15px;font-weight:600;
  cursor:pointer;text-decoration:none;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent-500);color:#1B1405;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--accent-600);color:#1B1405;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{background:transparent;border-color:var(--brand-500);color:var(--brand-700)}
.btn-ghost:hover{background:var(--mint-100);color:var(--brand-700);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;
  background:var(--mint-100);color:var(--brand-700);
}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 3px rgba(46,158,107,.18)}
.badge-accent{background:var(--accent-500);color:#1B1405}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--mint-50);border:1px solid var(--line);
  font-size:12.5px;color:var(--text-muted);
}

/* ---------- 页头 ---------- */
.page-hero{
  padding:44px 0 60px;
  background-color:var(--mint-50);
  background-image:
    linear-gradient(rgba(12,59,46,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(12,59,46,.035) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .current{color:var(--brand-700);font-weight:600}
.h1-accent{
  background-image:linear-gradient(transparent 64%, rgba(245,165,36,.5) 64%);
  background-repeat:no-repeat;
}
.page-hero h1{margin:18px 0 16px;max-width:900px}
.page-hero-lead{max-width:760px;font-size:17px;color:var(--text-muted)}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:26px;font-size:13.5px;color:var(--brand-700)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta i{color:var(--brand-500)}

/* ---------- 区块标题 ---------- */
.section-head{max-width:760px;margin-bottom:42px}
.section-head h2{margin:14px 0 12px}
.section-head p{color:var(--text-muted);font-size:16px}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.76)}

/* ---------- 入口速览 ---------- */
.overview{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.overview-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line)}
.overview-media img{width:100%;height:100%;min-height:340px;object-fit:cover}
.overview-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(8,37,28,.62),rgba(8,37,28,.05) 62%);
}
.overview-media .media-note{
  position:absolute;left:22px;bottom:22px;z-index:2;color:#fff;
}
.overview-media .media-note strong{display:block;font-size:18px;margin-bottom:4px}
.overview-media .media-note span{font-size:13px;color:rgba(255,255,255,.78)}
.status-list{display:flex;flex-direction:column;gap:16px}
.status-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.status-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.status-item .ico{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--mint-100);color:var(--brand-500);font-size:17px;
}
.status-item h3{font-size:16px;margin-bottom:6px}
.status-item p{font-size:14.5px;color:var(--text-muted);line-height:1.8}

/* ---------- 对比表 ---------- */
.table-shell{
  border:1px solid var(--line);border-radius:20px;overflow:hidden;
  background:var(--surface);box-shadow:var(--shadow-md);
}
table.compare{width:100%;border-collapse:collapse}
table.compare th,table.compare td{padding:18px 20px;text-align:left;font-size:15px;min-height:56px}
table.compare thead th{
  background:var(--brand-700);color:#fff;font-size:14.5px;font-weight:600;
  border-right:1px solid rgba(255,255,255,.12);
}
table.compare thead th:last-child{border-right:none}
table.compare thead th .col-note{display:block;font-size:12.5px;font-weight:400;color:rgba(255,255,255,.72);margin-top:3px}
table.compare thead th.featured{position:relative;background:#0F4A39}
table.compare thead th.featured .corner{
  position:absolute;top:10px;right:12px;
  background:var(--accent-500);color:#1B1405;
  font-size:11.5px;font-weight:700;padding:2px 9px;border-radius:var(--radius-pill);
}
table.compare tbody tr{border-top:1px solid var(--line)}
table.compare tbody tr:first-child{border-top:none}
table.compare tbody tr:hover{background:var(--mint-50)}
table.compare tbody td:first-child{font-weight:600;color:var(--brand-700);width:22%}
table.compare tbody td{border-right:1px solid var(--line);color:var(--text-muted);vertical-align:middle}
table.compare tbody td:last-child{border-right:none}
table.compare td.featured{background:rgba(245,165,36,.06);color:var(--text)}
.cell-flag{display:inline-flex;align-items:center;gap:8px;font-weight:600}
.cell-flag i{font-size:13px}
.cell-flag.ok{color:var(--brand-500)}
.cell-flag.no{color:#96A39C}
.table-foot{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:18px;font-size:13px;color:var(--text-muted);
}

/* ---------- 三步要点 ---------- */
.steps{display:flex;flex-direction:column;gap:20px}
.step-row{
  display:flex;gap:22px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand-500);
  border-radius:var(--radius-lg);padding:26px 28px;box-shadow:var(--shadow-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-left-color .25s var(--ease);
}
.step-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-left-color:var(--accent-500)}
.step-row .ico{
  width:56px;height:56px;flex:0 0 56px;border-radius:16px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--mint-100);color:var(--brand-500);font-size:21px;
}
.step-row h3{margin-bottom:8px;font-size:19px}
.step-row p{color:var(--text-muted);font-size:15px}
.step-row .step-index{
  margin-left:auto;font-size:13px;font-weight:700;color:var(--accent-600);
  font-variant-numeric:tabular-nums;flex:0 0 auto;padding-left:16px;
}

/* ---------- 检查清单 ---------- */
.checklist-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.check-card .check-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.check-card .check-head i{
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--mint-100);color:var(--brand-500);font-size:12px;flex:0 0 26px;
}
.check-card h3{font-size:16px}
.check-card p{font-size:14px;color:var(--text-muted)}
.side-note{
  margin-top:24px;padding:20px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px dashed var(--line);font-size:14px;color:var(--text-muted);
}
.side-note strong{color:var(--brand-700)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:16px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item.is-open{background:var(--mint-50);box-shadow:var(--shadow-md)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--brand-700);line-height:1.5;
}
.faq-q i{color:var(--brand-500);font-size:15px;transition:transform .25s var(--ease);flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--accent-600)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:14px;color:var(--text-muted);line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  background:var(--brand-900);
  background-image:radial-gradient(circle at 12% 25%, rgba(30,107,84,.6), transparent 55%);
  border-radius:var(--radius-xl);
  padding:48px 52px;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:72px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff;font-size:17px}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--accent-500),var(--accent-600));color:#1B1405}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.site-footer p{font-size:14px;color:rgba(255,255,255,.68);line-height:1.85;max-width:340px}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--accent-500);text-decoration:none}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row a{
  width:38px;height:38px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.social-row a:hover{background:var(--accent-500);color:#1B1405;text-decoration:none}
.footer-contact-item{display:flex;align-items:center;gap:10px;padding:5px 0;font-size:14px;color:rgba(255,255,255,.72)}
.footer-contact-item i{color:var(--accent-500)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.55);
}
.site-footer .btn-primary{color:#1B1405}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  h1{font-size:34px}
  h2{font-size:26px}
  .section{padding:64px 0}
  .overview{grid-template-columns:1fr;gap:28px}
  .checklist-wrap{grid-template-columns:1fr;gap:32px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
  .nav-links{margin-left:0}
}
@media (max-width:900px){
  .nav-card{flex-wrap:wrap;row-gap:10px}
  .nav-links{
    order:3;width:100%;flex-wrap:nowrap;overflow-x:auto;
    scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px;
  }
  .nav-links::-webkit-scrollbar{display:none}
  .nav-item{flex:0 0 auto}
  .nav-cta{margin-left:auto}
}
@media (max-width:760px){
  .container{padding:0 16px}
  h1{font-size:29px}
  h2{font-size:24px}
  .section{padding:56px 0}
  .page-hero{padding:32px 0 44px}
  .page-hero-lead{font-size:16px}
  .step-row{flex-direction:column;gap:16px;padding:22px}
  .step-row .step-index{margin-left:0;padding-left:0}
  .checklist{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:var(--radius-lg)}
  .cta-band h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .table-shell{border:none;background:transparent;box-shadow:none;border-radius:0}
  table.compare,table.compare tbody,table.compare tr,table.compare td{display:block;width:100%}
  table.compare thead{display:none}
  table.compare tbody tr{
    border:1px solid var(--line);border-radius:var(--radius-lg);
    background:var(--surface);padding:8px 6px;margin-bottom:16px;box-shadow:var(--shadow-sm);
  }
  table.compare tbody tr:hover{background:var(--surface)}
  table.compare tbody td{
    border-right:none;padding:10px 16px;
    display:flex;justify-content:space-between;gap:14px;align-items:baseline;
  }
  table.compare tbody td::before{
    content:attr(data-label);font-size:13px;font-weight:600;color:var(--text-muted);flex:0 0 96px;
  }
  table.compare tbody td:first-child{
    width:100%;font-size:16px;color:var(--brand-700);
    background:var(--mint-50);border-radius:10px;padding:12px 16px;margin:4px 8px 8px;width:calc(100% - 16px);
  }
  table.compare tbody td:first-child::before{display:none}
  table.compare td.featured{background:transparent}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  h1{font-size:26px}
  .brand-name{font-size:15px}
  .hero-meta{gap:10px 18px}
  .overview-media img{min-height:220px}
}

/* roulang page: article */
:root{
  --brand-900:#08251C;
  --brand-700:#0C3B2E;
  --brand-500:#1E6B54;
  --mint-100:#E6F2EC;
  --mint-50:#F1F7F3;
  --accent-500:#F5A524;
  --accent-600:#D9860B;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --line:#E2E7E2;
  --text:#16211D;
  --text-muted:#5C6B64;
  --warn:#D94A3D;
  --ok:#2E9E6B;
  --r-xs:8px;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-2xl:24px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(12,59,46,.06);
  --shadow-md:0 8px 24px rgba(12,59,46,.08);
  --shadow-lg:0 20px 48px rgba(12,59,46,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  background-image:
    linear-gradient(rgba(12,59,46,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(12,59,46,.022) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-700);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--brand-700);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--accent-500);color:var(--brand-900);}
:focus-visible{outline:2px solid rgba(245,165,36,.75);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--accent-500);color:#26190A;box-shadow:0 6px 16px rgba(245,165,36,.28);}
.btn-primary:hover{background:var(--accent-600);color:#1D1305;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-outline{background:transparent;border-color:var(--brand-500);color:var(--brand-700);}
.btn-outline:hover{background:var(--mint-100);border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-sm);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:12px 0;background:linear-gradient(180deg,rgba(246,247,244,.95),rgba(246,247,244,.72));backdrop-filter:blur(10px);}
.nav-card{
  display:flex;align-items:center;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-md);padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
  color:#fff;font-size:16px;box-shadow:0 4px 12px rgba(12,59,46,.24);
}
.brand-name{font-size:16px;font-weight:700;color:var(--brand-900);letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;}
.nav-links::-webkit-scrollbar{display:none;}
.nav-item{
  display:flex;align-items:center;gap:8px;padding:6px 14px 6px 8px;border-radius:var(--r-md);
  font-size:14px;color:var(--text-muted);white-space:nowrap;
  border:1px solid transparent;transition:all .18s ease;
}
.nav-item .nav-icon{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--mint-50);color:var(--brand-500);font-size:14px;transition:all .18s ease;
}
.nav-item:hover{background:var(--mint-50);color:var(--brand-700);transform:translateY(-1px);}
.nav-item:hover .nav-icon{background:var(--mint-100);}
.nav-item.is-active{
  background:var(--mint-100);color:var(--brand-700);font-weight:600;
  box-shadow:inset 3px 0 0 var(--accent-500);
}
.nav-item.is-active .nav-icon{background:#fff;color:var(--brand-700);}
.nav-cta{flex:0 0 auto;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--mint-50);border-bottom:1px solid var(--line);}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:13px;color:var(--text-muted);}
.crumb a{color:var(--brand-500);}
.crumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#A9B7B0;}
.crumb .now{color:var(--text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头 ============ */
.article-hero{
  background:var(--mint-50);
  background-image:
    linear-gradient(rgba(12,59,46,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(12,59,46,.025) 1px,transparent 1px);
  background-size:40px 40px;
  border-bottom:1px solid var(--line);
  padding:56px 0 44px;
}
.article-hero .inner{max-width:860px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--mint-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}
.pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-500);}
.article-hero h1{
  font-size:44px;line-height:1.25;margin:18px 0 16px;color:var(--brand-900);
  letter-spacing:-.4px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C3CEC8;}
.meta-row i{color:var(--brand-500);margin-right:4px;}

/* ============ 正文 ============ */
.article-main{padding:56px 0 8px;}
.article-shell{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-2xl);
  box-shadow:var(--shadow-md);padding:48px 56px;max-width:920px;margin:0 auto;
}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:anywhere;}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  font-size:24px;margin:44px 0 16px;padding-left:14px;
  border-left:4px solid var(--accent-500);line-height:1.4;
}
.article-body h3{font-size:20px;margin:30px 0 12px;}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--brand-500);}
.article-body p{margin:0 0 20px;}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-700);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul>li{list-style:disc;margin-bottom:8px;}
.article-body ol>li{list-style:decimal;margin-bottom:8px;}
.article-body li::marker{color:var(--brand-500);}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--mint-50);
  border-left:4px solid var(--accent-500);border-radius:var(--r-md);
  color:var(--text-muted);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-lg);width:100%;margin:8px 0 12px;box-shadow:var(--shadow-sm);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:4px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th{background:var(--brand-700);color:#fff;font-weight:600;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body tbody tr:hover{background:var(--mint-50);}
.article-body code{
  background:var(--mint-50);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--brand-700);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-body strong{color:var(--brand-900);}

/* ============ 正文后操作区 ============ */
.article-foot{margin:48px 0 0;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--mint-50);border:1px solid var(--line);
  font-size:13px;color:var(--brand-700);
}
.tag i{color:var(--brand-500);font-size:11px;}
.article-foot .actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 空态 ============ */
.empty-box{
  max-width:760px;margin:0 auto;text-align:center;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-xl);
  background:var(--mint-50);
}
.empty-box .empty-icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;
  display:grid;place-items:center;background:#fff;color:var(--brand-500);
  font-size:24px;box-shadow:var(--shadow-sm);
}
.empty-box h2{font-size:22px;margin-bottom:10px;}
.empty-box p{color:var(--text-muted);margin-bottom:22px;font-size:15px;}

/* ============ 相关推荐 ============ */
.related-section{padding:56px 0 8px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.section-head h2{font-size:26px;}
.section-head .sub{font-size:14px;color:var(--text-muted);margin-top:8px;}
.section-head .more-link{font-size:14px;font-weight:600;color:var(--brand-500);white-space:nowrap;}
.section-head .more-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFDAD3;}
.rcard .cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--mint-100);}
.rcard .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rcard:hover .cover img{transform:scale(1.04);}
.rcard .cover .cat{
  position:absolute;left:12px;top:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--brand-700);font-size:12px;font-weight:600;
}
.rcard .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.rcard h3{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rcard h3 a{color:var(--brand-900);}
.rcard h3 a:hover{color:var(--brand-500);}
.rcard .excerpt{
  font-size:14px;color:var(--text-muted);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rcard .rmeta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums;
  padding-top:14px;border-top:1px solid var(--line);
}
.rcard .rmeta .go{color:var(--brand-500);font-weight:600;}
.skeleton{background:linear-gradient(90deg,#EDF2EE 25%,#F6F9F6 50%,#EDF2EE 75%);background-size:200% 100%;animation:sk 1.4s infinite;border-radius:8px;}
@keyframes sk{0%{background-position:200% 0;}100%{background-position:-200% 0;}}

/* ============ CTA 条 ============ */
.cta-band{padding:56px 0 88px;}
.cta-inner{
  position:relative;overflow:hidden;
  background:var(--brand-900);border-radius:var(--r-2xl);
  padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-lg);
}
.cta-inner::after{
  content:"";position:absolute;right:-90px;top:-110px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,107,84,.65),transparent 68%);
}
.cta-inner .cta-text{position:relative;z-index:2;max-width:660px;}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-inner p{color:#B9CCC4;font-size:15px;}
.cta-inner .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}
.cta-inner .btn-outline{border-color:rgba(255,255,255,.5);color:#fff;}
.cta-inner .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#A9BEB6;padding:64px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.site-footer p{font-size:14px;line-height:1.85;color:#9DB3AB;margin-bottom:18px;}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-links a{display:block;font-size:14px;color:#A9BEB6;margin-bottom:11px;}
.footer-links a:hover{color:var(--accent-500);}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:#CBDCD5;font-size:15px;
  transition:all .18s ease;
}
.social-row a:hover{background:var(--accent-500);color:var(--brand-900);transform:translateY(-2px);}
.footer-contact-item{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:#A9BEB6;margin-bottom:12px;}
.footer-contact-item i{color:var(--brand-500);margin-top:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:13px;color:#8BA198;font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-hero h1{font-size:38px;}
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .article-shell{padding:40px 36px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 36px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-card{gap:10px;padding:8px 10px;border-radius:16px;}
  .brand-name{font-size:14px;}
  .nav-item{font-size:13px;padding:5px 10px 5px 6px;}
  .nav-item .nav-icon{width:30px;height:30px;font-size:13px;}
  .nav-cta{height:36px;padding:0 14px;font-size:13px;}
  .article-hero{padding:40px 0 32px;}
  .article-hero h1{font-size:28px;}
  .article-main{padding:36px 0 8px;}
  .article-shell{padding:28px 20px;border-radius:var(--r-xl);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:36px;}
  .article-body h3{font-size:18px;}
  .article-body table{font-size:14px;}
  .related-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:40px 0 64px;}
  .cta-inner{padding:32px 22px;border-radius:var(--r-xl);}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:48px 0 22px;}
  .crumb .now{white-space:normal;max-width:100%;}
}
@media (max-width:520px){
  .brand-name{max-width:120px;overflow:hidden;text-overflow:ellipsis;}
  .article-foot .actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand-900:#08251C;
  --brand-700:#0C3B2E;
  --brand-500:#1E6B54;
  --mint-100:#E6F2EC;
  --mint-50:#F1F7F3;
  --accent-500:#F5A524;
  --accent-600:#D9860B;
  --bg:#F6F7F4;
  --surface:#FFFFFF;
  --line:#E2E7E2;
  --text:#16211D;
  --text-muted:#5C6B64;
  --danger:#D94A3D;
  --success:#2E9E6B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(12,59,46,.06);
  --shadow-md:0 8px 24px rgba(12,59,46,.08);
  --shadow-lg:0 20px 48px rgba(12,59,46,.12);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);text-decoration:underline;}
h1,h2,h3,h4{margin:0;line-height:1.28;color:var(--brand-700);font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid rgba(245,165,36,.7);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0;
  background:rgba(246,247,244,.82);
  backdrop-filter:blur(10px);
}
.nav-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-md);
  padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;
  font-size:17px;
  box-shadow:var(--shadow-sm);
}
.brand-name{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:.3px;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none;}
.nav-links::-webkit-scrollbar{display:none;}
.nav-item{
  display:flex;align-items:center;gap:9px;
  padding:8px 14px 8px 10px;
  border-radius:14px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
  white-space:nowrap;
  text-decoration:none;
  transition:background .2s ease,box-shadow .2s ease,color .2s ease;
}
.nav-item:hover{background:var(--mint-50);text-decoration:none;color:var(--brand-700);}
.nav-item.is-active{
  background:var(--mint-100);
  box-shadow:inset 3px 0 0 var(--accent-500);
  color:var(--brand-700);
}
.nav-icon{
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:9px;
  background:var(--mint-100);
  color:var(--brand-500);
  font-size:13px;
}
.nav-item.is-active .nav-icon{background:#fff;color:var(--accent-600);}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;
  padding:0 28px;
  border:1px solid transparent;
  border-radius:var(--r-md);
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  text-decoration:none;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--accent-500);color:#20160A;box-shadow:0 6px 18px rgba(245,165,36,.28);}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-lg);color:#1B1207;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--brand-500);color:var(--brand-500);}
.btn-ghost:hover{background:var(--mint-100);color:var(--brand-700);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ badges & tags ============ */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--mint-100);
  color:var(--brand-500);
  font-size:13px;
  font-weight:600;
  line-height:1.5;
}
.badge-accent{background:rgba(245,165,36,.16);color:var(--accent-600);}
.badge-outline{background:#fff;border:1px solid var(--accent-500);color:var(--accent-600);}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand-500);display:inline-block;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ page head ============ */
.page-head{
  padding:64px 0 60px;
  background-color:var(--mint-50);
  background-image:
    linear-gradient(rgba(12,59,46,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(12,59,46,.045) 1px,transparent 1px);
  background-size:32px 32px;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--brand-500);}
.crumb i{font-size:10px;color:#A9B6AF;}
.page-head h1{font-size:44px;max-width:880px;}
.page-head .lead{margin-top:18px;font-size:17px;color:var(--text-muted);max-width:720px;}
.head-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.head-meta .chip{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:7px 15px;font-size:13px;color:var(--brand-700);font-weight:600;
}
.head-meta .chip i{color:var(--brand-500);}

/* ============ section base ============ */
.section{padding:88px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:30px;margin-bottom:14px;}
.section-head p{color:var(--text-muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--accent-600);
  letter-spacing:1px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}

/* ============ timeline ============ */
.timeline{position:relative;max-width:900px;margin:0 auto;padding-left:0;}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;top:14px;bottom:26px;
  width:2px;
  background:linear-gradient(180deg,var(--brand-500) 0%,rgba(30,107,84,.18) 100%);
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:48px 1fr;
  gap:24px;
  padding-bottom:26px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:relative;z-index:1;
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--accent-500);
  color:var(--brand-700);
  font-weight:700;
  font-size:15px;
  box-shadow:var(--shadow-sm);
  font-variant-numeric:tabular-nums;
}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  padding:24px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE0D7;}
.tl-card h3{font-size:19px;margin-bottom:10px;}
.tl-card p{color:var(--text-muted);font-size:15px;}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:16px;
  margin-top:16px;padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-muted);
}
.tl-meta i{color:var(--brand-500);margin-right:6px;}

/* ============ duo cards ============ */
.duo-list{display:grid;gap:24px;}
.duo-item{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.duo-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.duo-media{min-height:300px;position:relative;background:var(--mint-100);}
.duo-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.duo-body{padding:40px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.duo-body h3{font-size:22px;}
.duo-body p{color:var(--text-muted);font-size:15px;}
.duo-item.is-reverse .duo-media{order:2;}
.tick-list{display:grid;gap:10px;margin-top:6px;}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--text);}
.tick-list li i{color:var(--brand-500);margin-top:6px;font-size:13px;flex:0 0 auto;}

/* ============ stats ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--brand-500);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.stat .v{font-size:32px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat .v em{font-style:normal;font-size:16px;color:var(--accent-600);margin-left:4px;}
.stat .k{margin-top:10px;font-size:14px;color:var(--text-muted);}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
.faq-side h2{font-size:30px;margin-bottom:14px;}
.faq-side p{color:var(--text-muted);font-size:15px;margin-bottom:20px;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:background .25s ease,border-color .25s ease;
}
.faq-item.is-open{background:var(--mint-50);border-color:#CFE0D7;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;
  background:none;border:0;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--brand-700);
  cursor:pointer;
  line-height:1.6;
}
.faq-q:hover{color:var(--brand-500);}
.faq-q .sign{
  flex:0 0 auto;
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--mint-100);
  color:var(--brand-500);
  font-size:14px;
  transition:transform .25s ease,background .25s ease;
}
.faq-item.is-open .faq-q .sign{background:var(--accent-500);color:#20160A;transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 24px 22px;font-size:14.5px;color:var(--text-muted);line-height:1.9;}

/* ============ contact form ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start;}
.contact-info h2{font-size:30px;margin-bottom:14px;}
.contact-info > p{color:var(--text-muted);font-size:15.5px;margin-bottom:26px;}
.info-line{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px dashed var(--line);}
.info-line:last-of-type{border-bottom:0;}
.info-line .ic{
  width:40px;height:40px;flex:0 0 auto;
  display:grid;place-items:center;border-radius:12px;
  background:var(--mint-100);color:var(--brand-500);
}
.info-line strong{display:block;font-size:15px;color:var(--brand-700);margin-bottom:2px;}
.info-line span{font-size:14px;color:var(--text-muted);}
.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-lg);
  padding:32px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:13.5px;font-weight:600;color:var(--brand-700);}
.field input,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  padding:13px 14px;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.75;}
.field input::placeholder,.field textarea::placeholder{color:#A9B6AF;}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(245,165,36,.22);
}
.field.is-error input,.field.is-error textarea{border-color:var(--danger);}
.field .err{font-size:12.5px;color:var(--danger);display:none;}
.field.is-error .err{display:block;}
.form-note{font-size:12.5px;color:var(--text-muted);margin-top:14px;line-height:1.8;}
.form-success{
  display:none;
  margin-top:16px;
  padding:13px 16px;
  border-radius:10px;
  background:rgba(46,158,107,.1);
  color:var(--success);
  font-size:14px;
  font-weight:600;
}
.form-success.is-show{display:block;}

/* ============ CTA band ============ */
.cta-band{
  background:var(--brand-900);
  color:#DCE9E3;
  position:relative;
  overflow:hidden;
  padding:72px 0;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-160px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(30,107,84,.65) 0%,rgba(8,37,28,0) 68%);
}
.cta-band .inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-band p{color:#A9C4B9;font-size:15px;max-width:620px;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ============ footer ============ */
.site-footer{background:var(--brand-900);color:#B9CFC5;padding:72px 0 28px;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand-500),#2E9E6B);}
.footer-brand .brand-name{color:#fff;font-size:16.5px;}
.site-footer p{color:#93AFA4;line-height:1.85;}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-links{display:grid;gap:11px;}
.footer-links a{color:#B9CFC5;font-size:14.5px;}
.footer-links a:hover{color:var(--accent-500);text-decoration:none;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:rgba(255,255,255,.07);
  color:#DCE9E3;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.social-row a:hover{background:var(--accent-500);color:#20160A;transform:translateY(-2px);text-decoration:none;}
.footer-contact-item{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;color:#B9CFC5;}
.footer-contact-item i{color:var(--accent-500);margin-top:5px;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8AA69B;
}

/* ============ responsive ============ */
@media (max-width:1023px){
  .container{padding:0 20px;}
  .nav-card{flex-wrap:nowrap;gap:12px;padding:10px 12px;}
  .nav-links{margin-left:0;flex:1 1 auto;justify-content:flex-start;}
  .brand-name{font-size:15.5px;}
  .page-head{padding:48px 0 44px;}
  .page-head h1{font-size:32px;}
  .section{padding:64px 0;}
  .section-head h2,.faq-side h2,.contact-info h2{font-size:26px;}
  .hero h1{font-size:34px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .duo-body{padding:30px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .contact-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:768px){
  .nav-item span:not(.nav-icon){font-size:13.5px;}
  .nav-item{padding:7px 12px 7px 8px;}
  .duo-item{grid-template-columns:1fr;}
  .duo-item.is-reverse .duo-media{order:0;}
  .duo-media{min-height:210px;}
  .duo-body{padding:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band .inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .brand-name{display:none;}
  .nav-cta{display:none;}
  .nav-links{margin-left:0;}
  .nav-card{gap:8px;}
  .page-head{padding:36px 0 34px;}
  .page-head h1{font-size:28px;}
  .page-head .lead{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .section-head h2,.faq-side h2,.contact-info h2{font-size:24px;}
  .timeline::before{left:19px;}
  .tl-item{grid-template-columns:40px 1fr;gap:16px;}
  .tl-node{width:40px;height:40px;font-size:13.5px;}
  .tl-card{padding:20px;}
  .stats{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:23px;}
}