/* roulang page: index */
:root{
  --brand-900:#0A3B2E;
  --brand-700:#0F5C46;
  --brand-600:#12805E;
  --brand-500:#17A06F;
  --brand-100:#DCF3E9;
  --brand-50:#EFF8F3;
  --accent-600:#E8590C;
  --accent-500:#FF6B2C;
  --accent-100:#FFE9DC;
  --sun-500:#FFC53D;
  --ink-900:#10161A;
  --ink-600:#4A565E;
  --ink-400:#8A949B;
  --line:#E3E8E4;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --night:#0C1418;
  --radius-xl:20px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(16,22,26,.06);
  --shadow-2:0 10px 24px rgba(16,22,26,.10);
  --shadow-3:0 16px 40px rgba(16,22,26,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-500)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(23,160,111,.28);outline-offset:2px}
h1,.h1{font-size:clamp(30px,4vw,44px);line-height:1.2;font-weight:800;letter-spacing:-0.01em}
h2,.h2{font-size:clamp(24px,2.6vw,32px);line-height:1.28;font-weight:700;letter-spacing:0}
h3,.h3{font-size:20px;line-height:1.4;font-weight:700}
h4,.h4{font-size:17px;line-height:1.45;font-weight:700}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.bg-surface{background:var(--surface)}
.bg-brand{background:var(--brand-50)}
.bg-plain{background:var(--bg)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .sub{font-size:16px;color:var(--ink-600);line-height:1.75;margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--brand-600);text-transform:uppercase}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-600);border-radius:2px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);white-space:nowrap}
.link-more i{transition:transform .18s ease-out}
.link-more:hover i{transform:translateX(2px)}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.84);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 4px 16px rgba(16,22,26,.06)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);flex-shrink:0}
.logo:hover{color:var(--ink-900)}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 6px 14px rgba(18,128,94,.24);
}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-0.01em}
.main-nav{display:flex;align-items:center;gap:26px;margin-right:auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link.active{color:var(--brand-700);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.header-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:background-color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box i{font-size:13px;color:var(--ink-400)}
.search-box input{width:100%;border:0;background:transparent;outline:none;font-size:14px;line-height:1.4}
.search-box input::placeholder{color:var(--ink-400)}
.search-box:focus-within{background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,160,111,.18)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  align-items:center;justify-content:center;color:var(--ink-900);font-size:18px;
  border:1px solid var(--line);background:#fff;
}
.menu-toggle:hover{color:var(--brand-600);border-color:var(--brand-100)}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;z-index:90;height:100%;width:min(86vw,360px);
  background:#fff;box-shadow:var(--shadow-3);transform:translateX(102%);
  transition:transform .28s ease-out;display:flex;flex-direction:column;padding:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink-600)}
.drawer-close:hover{background:var(--brand-50);color:var(--brand-700)}
.drawer-nav{margin-top:12px;flex:1}
.drawer-nav a{display:flex;align-items:center;height:52px;padding:0 4px;font-size:16px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--brand-700)}
.drawer-mask{position:fixed;inset:0;z-index:80;background:rgba(12,20,24,.45);opacity:0;visibility:hidden;transition:opacity .28s ease-out,visibility .28s ease-out}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  border-radius:var(--radius-sm);font-size:16px;font-weight:600;border:1.5px solid transparent;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-600);color:#fff}
.btn-primary:hover{background:var(--accent-500);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(232,89,12,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:focus-visible{outline:3px solid rgba(232,89,12,.28);outline-offset:2px}
.btn-outline{background:#fff;border-color:var(--brand-600);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost{background:transparent;color:var(--brand-700);padding:0 4px;height:40px}
.btn-ghost:hover{color:var(--brand-500);text-decoration:underline}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* Hero */
.hero{background:var(--brand-50);padding:56px 0 88px}
.hero-grid{display:grid;grid-template-columns:55fr 45fr;gap:48px;align-items:center}
.hero-title{margin:16px 0 18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-600);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:0}
.hero-stat{padding-right:26px}
.hero-stat + .hero-stat{border-left:1px solid var(--line);padding-left:26px}
.hero-stat .num{font-size:26px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat .cap{font-size:13px;color:var(--ink-400);line-height:1.7;margin-top:2px}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-xl);box-shadow:var(--shadow-3)}
.hero-badge{
  position:absolute;display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px;
  box-shadow:var(--shadow-2);font-size:13px;font-weight:600;color:var(--ink-900);
}
.hero-badge i{color:var(--accent-600)}
.hero-badge--top{top:18px;left:-16px}
.hero-badge--bottom{bottom:18px;right:-16px}
.hero-badge--bottom i{color:var(--brand-600)}

/* 优惠阶梯 */
.ladder-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.ladder-list{border-left:2px solid var(--line)}
.ladder-item{
  position:relative;display:grid;grid-template-columns:88px 1fr auto;gap:28px;align-items:center;
  padding:28px 0 28px 34px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.ladder-item:first-child{padding-top:12px;padding-bottom:42px}
.ladder-item:last-child{border-bottom:0}
.ladder-item::before{
  content:"";position:absolute;left:-2px;top:38px;width:2px;height:34px;background:var(--brand-600);
}
.ladder-item:first-child::before{top:22px;height:44px}
.ladder-item:hover{background:var(--brand-50)}
.ladder-num{font-size:34px;font-weight:800;color:var(--brand-100);font-variant-numeric:tabular-nums;line-height:1;letter-spacing:.02em}
.ladder-item:first-child .ladder-num{color:var(--sun-500)}
.ladder-body h3{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ladder-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:8px}
.ladder-points li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-600);line-height:1.7}
.ladder-points li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand-500)}
.badge{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:6px;font-size:12px;font-weight:600;line-height:1}
.badge-live{background:var(--brand-100);color:var(--brand-700)}
.badge-limit{background:var(--accent-100);color:var(--accent-600)}
.badge-soon{background:#EEF1EF;color:var(--ink-400)}
.badge-new{background:var(--brand-100);color:var(--brand-700)}

/* 套餐对比 */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.plan-card.featured{border:1.5px solid var(--accent-600);transform:translateY(-8px);box-shadow:var(--shadow-2)}
.plan-card.featured:hover{transform:translateY(-10px)}
.plan-tag{
  position:absolute;top:-13px;right:20px;background:var(--sun-500);color:#3A2A00;
  font-size:12px;font-weight:700;height:26px;padding:0 12px;border-radius:8px;
  display:inline-flex;align-items:center;
}
.plan-name{font-size:18px;font-weight:700}
.plan-desc{font-size:14px;color:var(--ink-600);line-height:1.7;margin-top:6px;min-height:44px}
.plan-price{display:flex;align-items:baseline;gap:6px;margin:14px 0 20px}
.plan-price .value{font-size:38px;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1}
.plan-price .unit{font-size:14px;color:var(--ink-400)}
.plan-list{border-top:1px solid var(--line);padding-top:18px;margin-bottom:22px}
.plan-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-600);line-height:1.75;padding:6px 0}
.plan-list i{color:var(--brand-600);font-size:13px;margin-top:6px}
.plan-note{font-size:13px;color:var(--ink-400);text-align:center;margin-top:24px;line-height:1.7}

/* 限时深色块 */
.night-block{
  background:var(--night);border-radius:var(--radius-xl);padding:40px;color:#fff;
  display:grid;grid-template-columns:1.1fr 1fr auto;gap:32px;align-items:center;
}
.night-block h2{color:#fff}
.night-block .desc{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);margin-top:10px;max-width:420px}
.countdown{display:flex;gap:8px}
.countdown .cell{
  width:64px;height:64px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);display:flex;flex-direction:column;
  align-items:center;justify-content:center;
}
.countdown .cell b{font-size:22px;font-weight:800;color:var(--sun-500);font-variant-numeric:tabular-nums;line-height:1.1}
.countdown .cell span{font-size:11px;color:rgba(255,255,255,.6);letter-spacing:.06em}
.night-rule{font-size:13px;color:rgba(255,255,255,.55);margin-top:14px;line-height:1.7}

/* 流程 */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-item{position:relative;padding-top:22px;border-top:2px solid var(--line)}
.flow-item::before{
  content:attr(data-step);position:absolute;top:-14px;left:0;
  width:26px;height:26px;border-radius:8px;background:var(--brand-600);color:#fff;
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.flow-item h4{margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--ink-600);line-height:1.8}

/* 资讯卡 */
.news-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:8px;
  font-size:14px;font-weight:600;color:var(--ink-600);background:var(--bg);border:1px solid var(--line);
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.chip:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100)}
.chip.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.news-cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;background:var(--brand-50);margin-bottom:16px}
.news-cover--ph{display:flex;align-items:center;justify-content:center;color:var(--brand-500);font-size:26px}
.news-cat{align-self:flex-start;background:var(--brand-100);color:var(--brand-700);font-size:11px;font-weight:700;height:22px;padding:0 9px;border-radius:6px;display:inline-flex;align-items:center;margin-bottom:10px}
.news-title{
  font-size:17px;font-weight:700;line-height:1.45;color:var(--ink-900);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand-600)}
.news-summary{
  font-size:15px;line-height:1.75;color:var(--ink-600);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.news-time{font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums}
.news-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
.news-more i{transition:transform .18s ease-out}
.news-card:hover .news-more i{transform:translateX(2px)}
.empty-card{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--brand-50);border:1px dashed var(--line);border-radius:var(--radius);
  padding:56px 24px;text-align:center;
}
.empty-card i{font-size:26px;color:var(--brand-500)}
.empty-card p{font-size:15px;color:var(--ink-600)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:background-color .18s ease-out}
.faq-item:hover{background:var(--brand-50)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.5;
  min-height:44px;
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .28s ease-out,background-color .18s ease-out;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 20px 20px;font-size:15.5px;line-height:1.8;color:var(--ink-600)}

/* 表单 */
.consult-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:start}
.consult-points{margin-top:24px;display:grid;gap:14px}
.consult-points li{display:flex;gap:12px;font-size:15px;color:var(--ink-600);line-height:1.75}
.consult-points i{color:var(--brand-600);margin-top:7px;font-size:13px}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:32px;box-shadow:var(--shadow-1)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:14px;font-weight:600;color:var(--ink-900)}
.field .req{color:var(--accent-600);margin-left:2px}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);font-size:15px;outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{
  appearance:none;-webkit-appearance:none;padding-right:40px;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%234A565E' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,160,111,.18)}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400)}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-600);line-height:1.7;margin:6px 0 20px}
.check-line input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand-600);flex-shrink:0}
.form-tip{font-size:13px;color:var(--ink-400);margin-top:14px;line-height:1.7}
.form-msg{display:none;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand-700);background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--radius-sm);padding:12px 14px}
.form-msg.is-show{display:block}

/* 页脚 */
.site-footer{background:var(--night);color:rgba(255,255,255,.9);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800}
.footer-brand:hover{color:#fff}
.footer-brand .logo-mark{background:var(--brand-600)}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin-top:16px;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:rgba(255,255,255,.9);margin-bottom:16px}
.footer-col li{font-size:14px;line-height:1.9}
.footer-col a{color:rgba(255,255,255,.6)}
.footer-col a:hover{color:var(--sun-500)}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.6);line-height:1.9}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);line-height:1.8;
}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--sun-500)}

/* 响应式 */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .main-nav,.search-box{display:none}
  .menu-toggle{display:flex}
  .hero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual img{aspect-ratio:16/10}
  .hero-badge--top{left:12px;top:12px}
  .hero-badge--bottom{right:12px;bottom:12px}
  .ladder-item{grid-template-columns:64px 1fr;gap:20px;padding-left:24px}
  .ladder-item .ladder-cta{grid-column:2}
  .plan-grid{grid-template-columns:1fr;gap:20px}
  .plan-card.featured{transform:none}
  .plan-card.featured:hover{transform:translateY(-2px)}
  .night-block{grid-template-columns:1fr;gap:24px;padding:32px}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .news-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .consult-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  body{font-size:16px;line-height:1.9}
  .header-inner{height:56px;gap:14px}
  .logo-text{font-size:16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .ladder-head{flex-direction:column;align-items:flex-start;gap:14px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:16px 0}
  .hero-stat{padding-right:18px}
  .hero-stat + .hero-stat{padding-left:18px}
  .hero-stat .num{font-size:22px}
  .ladder-item{grid-template-columns:1fr;gap:12px}
  .ladder-num{font-size:28px}
  .countdown .cell{width:58px;height:58px}
  .flow-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .faq-list{max-width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand-900:#0A3B2E;
  --brand-700:#0F5C46;
  --brand-600:#12805E;
  --brand-500:#17A06F;
  --brand-100:#DCF3E9;
  --brand-50:#EFF8F3;
  --accent-600:#E8590C;
  --accent-500:#FF6B2C;
  --accent-100:#FFE9DC;
  --sun-500:#FFC53D;
  --ink-900:#10161A;
  --ink-600:#4A565E;
  --ink-400:#8A949B;
  --line:#E3E8E4;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --night:#0C1418;
  --r-xl:20px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-xs:6px;
  --sh-1:0 1px 2px rgba(16,22,26,.06);
  --sh-2:0 10px 24px rgba(16,22,26,.10);
  --sh-3:0 16px 40px rgba(16,22,26,.14);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900)}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t),background var(--t);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);background:rgba(255,255,255,.96)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.brand:hover{color:var(--brand-600)}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-600);display:grid;place-items:center;flex:none}
.logo-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;font-size:15px;font-weight:600;color:var(--ink-600);border-radius:8px}
.nav-link:hover{color:var(--brand-700);background:var(--brand-50)}
.nav-link.active{color:var(--brand-700)}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;background:var(--brand-600)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search input{
  width:220px;height:40px;border-radius:var(--r-sm);
  border:1px solid transparent;background:var(--bg);
  padding:0 14px;font-size:14px;outline:none;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,160,111,.18)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform var(--t),opacity var(--t)}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,160,111,.18)}

/* ---------- Drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(12,20,24,.42);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:70}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:#fff;z-index:80;transform:translateX(100%);
  transition:transform var(--t);box-shadow:var(--sh-3);
  padding:20px;display:flex;flex-direction:column;gap:14px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:10px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-size:16px;font-weight:800;color:var(--brand-700)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);font-size:20px;line-height:1;cursor:pointer;color:var(--ink-600)}
.drawer-close:hover{background:var(--brand-50);color:var(--brand-700)}
.drawer-link{display:flex;align-items:center;min-height:52px;font-size:16px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--line)}
.drawer-link.active{color:var(--brand-700)}
.drawer-link:hover{color:var(--brand-600)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-500);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:none;box-shadow:var(--sh-1)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(232,89,12,.28)}
.btn-ghost{border-color:var(--brand-600);color:var(--brand-700);background:transparent}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,160,111,.18)}
.btn-sm{height:40px;font-size:14px;padding:0 16px}
.btn-block{width:100%}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:24px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;list-style:none;font-size:14px;color:var(--ink-400);line-height:1.7}
.breadcrumb li{display:flex;align-items:center;min-width:0}
.breadcrumb li:not(:last-child)::after{content:"/";margin:0 8px;color:#C9D2CB}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .crumb-current{color:var(--ink-600);max-width:min(52vw,420px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Article head ---------- */
.article-head{padding:22px 0 0;max-width:880px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-xs);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-cat{background:var(--brand-100);color:var(--brand-700)}
.article-title{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.25;font-weight:800;letter-spacing:-.01em;margin-top:14px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:16px;font-size:13.5px;color:var(--ink-400);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.article-cover{margin:26px 0 0;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);background:var(--brand-50)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- Layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:48px;align-items:start;
  padding:40px 0 0;
}
.article-main{min-width:0}

/* ---------- Prose ---------- */
.prose{max-width:760px;font-size:17px;line-height:1.95;color:var(--ink-900);word-wrap:break-word;overflow-wrap:break-word}
.prose p{margin:0 0 1.15em}
.prose h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;
  margin:40px 0 16px;padding-left:14px;position:relative;
}
.prose h2::before{content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:3px;background:var(--brand-600)}
.prose h3{font-size:20px;line-height:1.5;font-weight:700;margin:28px 0 12px}
.prose h4{font-size:17px;line-height:1.45;font-weight:700;margin:22px 0 10px}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.35em}
.prose li{margin-bottom:.42em;line-height:1.9}
.prose ul li::marker{color:var(--brand-600)}
.prose ol li::marker{color:var(--brand-600);font-weight:700}
.prose blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-50);
  border-left:3px solid var(--brand-600);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-600);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--r-md);margin:22px 0;border:1px solid var(--line)}
.prose figure{margin:24px 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--ink-400);margin-top:8px}
.prose a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--brand-500)}
.prose strong{font-weight:700}
.prose hr{border:none;border-top:1px solid var(--line);margin:32px 0}
.prose .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);margin:22px 0}
.prose table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.prose th,.prose td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;line-height:1.7}
.prose th{background:var(--brand-50);font-weight:700;white-space:nowrap}
.prose tr:last-child td{border-bottom:none}

/* ---------- Empty state ---------- */
.empty-state{
  border:1px dashed var(--line);background:var(--brand-50);
  border-radius:var(--r-lg);padding:40px 24px;text-align:center;
}
.empty-state .empty-mark{
  width:52px;height:52px;border-radius:14px;background:var(--brand-100);
  display:grid;place-items:center;margin:0 auto 14px;
}
.empty-state .empty-mark svg{width:24px;height:24px}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:8px}
.empty-state p{font-size:15px;color:var(--ink-600);margin:0 0 18px;line-height:1.8}

/* ---------- Article actions ---------- */
.article-actions{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
}
.article-note{font-size:13px;color:var(--ink-400);line-height:1.75;margin:16px 0 0}

/* ---------- Related ---------- */
.related{margin-top:64px}
.related-head{margin-bottom:20px}
.related-head h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:700}
.related-head p{font-size:15px;color:var(--ink-600);margin:6px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-media{border-radius:var(--r-md);overflow:hidden;background:var(--brand-50)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-title{font-size:17px;line-height:1.45;font-weight:700}
.card:hover .card-title{color:var(--brand-600)}
.card-desc{font-size:15px;line-height:1.75;color:var(--ink-600);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums}
.card-more{font-size:14px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:4px;min-height:44px}
.card:hover .card-more{color:var(--brand-500)}
.card:hover .card-more i{transform:translateX(2px)}
.card-more i{font-style:normal;transition:transform var(--t)}

/* ---------- Sidebar ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;line-height:1.45;font-weight:700;margin-bottom:12px}
.side-card p{font-size:14px;line-height:1.8;color:var(--ink-600);margin:0 0 14px}
.side-links{list-style:none}
.side-links li+li{border-top:1px solid var(--line)}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:46px;padding:6px 0;font-size:14.5px;font-weight:600;color:var(--ink-600);
}
.side-links a:hover{color:var(--brand-600)}
.side-links a i{font-style:normal;color:var(--ink-400);transition:transform var(--t),color var(--t)}
.side-links a:hover i{transform:translateX(2px);color:var(--brand-600)}
.side-cta{background:var(--brand-50);border-color:var(--brand-100)}
.side-cta h3{margin-bottom:8px}
.side-points{list-style:none;display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.side-points li{display:flex;gap:8px;font-size:13.5px;line-height:1.75;color:var(--ink-600)}
.side-points li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--brand-500);margin-top:.62em}

/* ---------- Footer ---------- */
.site-footer{background:var(--night);color:rgba(255,255,255,.9);margin-top:88px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:-.01em}
.footer-brand:hover{color:var(--sun-500)}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin:14px 0 0;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px}
.footer-col ul{list-style:none}
.footer-col li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
.footer-col a{color:rgba(255,255,255,.75)}
.footer-col a:hover{color:var(--sun-500)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:8px 28px;font-size:13px;line-height:1.8;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--sun-500)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding-top:32px}
  .article-side{position:static;top:auto}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .related{margin-top:48px}
  .site-footer{padding:56px 0 24px;margin-top:72px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:56px;gap:12px}
  .brand{font-size:16px}
  .logo-mark{width:30px;height:30px;border-radius:9px}
  .btn{padding:0 18px}
  .article-head{padding-top:16px}
  .article-title{font-size:28px;line-height:1.3}
  .article-cover{margin-top:20px;border-radius:var(--r-lg)}
  .prose{font-size:16px;line-height:1.9}
  .prose h2{margin-top:32px}
  .prose blockquote{padding:14px 16px}
  .article-layout{padding-top:26px;gap:28px}
  .related{margin-top:40px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .side-card{padding:16px}
  .card{padding:16px}
  .article-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;gap:6px}
  .site-footer{margin-top:56px;padding:48px 0 24px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0A3B2E;
  --brand-700:#0F5C46;
  --brand-600:#12805E;
  --brand-500:#17A06F;
  --brand-100:#DCF3E9;
  --brand-50:#EFF8F3;
  --accent-600:#E8590C;
  --accent-500:#FF6B2C;
  --accent-100:#FFE9DC;
  --sun-500:#FFC53D;
  --ink-900:#10161A;
  --ink-600:#4A565E;
  --ink-400:#8A949B;
  --line:#E3E8E4;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --night:#0C1418;
  --danger:#C0392B;
  --r-hero:20px;
  --r-card:16px;
  --r-sm:10px;
  --r-xs:6px;
  --sh-1:0 1px 2px rgba(16,22,26,.06);
  --sh-2:0 10px 24px rgba(16,22,26,.10);
  --sh-3:0 16px 40px rgba(16,22,26,.14);
  --ease:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease),transform var(--ease)}
a:hover{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.28}
h1{font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.2;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,32px);font-weight:700}
h3{font-size:20px;font-weight:700;line-height:1.4}
h4{font-size:17px;font-weight:700;line-height:1.45}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(23,160,111,.32);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head p{margin:12px 0 0;font-size:16px;color:var(--ink-600)}
.eyebrow{
  display:inline-block;margin-bottom:14px;padding:4px 10px;border-radius:var(--r-xs);
  background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:700;letter-spacing:.06em;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.84);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);flex:0 0 auto}
.brand:hover{color:var(--ink-900)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-700));
  box-shadow:var(--sh-1);
}
.logo-mark svg{width:22px;height:22px}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--ink-600);
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-link.active{color:var(--brand-700)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  border-radius:2px;background:var(--brand-600);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:6px;
  width:220px;height:40px;padding:0 10px 0 12px;
  background:var(--bg);border:1px solid transparent;border-radius:var(--r-sm);
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{background:var(--surface);border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,160,111,.16)}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);
}
.search-box input::placeholder{color:var(--ink-400)}
.search-box button{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;color:var(--ink-400)}
.search-box button:hover{color:var(--brand-600)}
.search-box svg{width:16px;height:16px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface);color:var(--ink-900);
}
.menu-toggle:hover{border-color:var(--brand-600);color:var(--brand-600)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent-500);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:none;box-shadow:var(--sh-1)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(232,89,12,.28)}
.btn-ghost{background:transparent;color:var(--brand-700);border:1.5px solid var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost:active{transform:none}

/* ============ 面包屑 ============ */
.breadcrumb{margin-bottom:18px;font-size:14px;color:var(--ink-400)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--ink-400)}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb [aria-current="page"]{color:var(--ink-600)}

/* ============ 分类页 Hero ============ */
.page-hero{background:var(--surface);border-bottom:1px solid var(--line);overflow:hidden}
.page-hero-inner{
  display:grid;grid-template-columns:1fr 360px;gap:48px;align-items:center;
  min-height:320px;padding-top:48px;padding-bottom:48px;
}
.page-hero-copy{max-width:660px}
.page-hero h1{margin-bottom:16px}
.hero-sub{font-size:16px;color:var(--ink-600);margin:0 0 26px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.page-hero-visual{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  aspect-ratio:5/4;box-shadow:var(--sh-2);
}
.page-hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-chip{
  position:absolute;left:14px;bottom:14px;
  padding:6px 12px;border-radius:var(--r-xs);
  background:rgba(255,255,255,.94);color:var(--brand-700);
  font-size:12px;font-weight:700;letter-spacing:.04em;
}

/* ============ 导语 ============ */
.lead-section{background:var(--brand-50)}
.lead-box{max-width:760px}
.lead-box p{font-size:16px;line-height:1.9;color:var(--ink-600);margin-bottom:14px}
.lead-box p:last-child{margin-bottom:0}
.lead-box strong{color:var(--ink-900)}

/* ============ 条目流 ============ */
.entry-list{border-top:1px solid var(--line)}
.entry{
  display:grid;grid-template-columns:40% 1fr;gap:32px;align-items:center;
  padding:28px 20px;border-bottom:1px solid var(--line);border-radius:12px;
  transition:background var(--ease);
}
.entry:hover{background:var(--brand-50)}
.entry-figure{border-radius:12px;overflow:hidden;aspect-ratio:4/3;background:var(--brand-50)}
.entry-figure img{width:100%;height:100%;object-fit:cover}
.entry-body h3{font-size:18px;margin-bottom:10px}
.entry:hover .entry-body h3 a{color:var(--brand-600)}
.entry-index{
  display:block;margin-bottom:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand-600);
  font-variant-numeric:tabular-nums;
}
.entry-desc{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0 0 12px}
.entry-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.entry-link svg{width:14px;height:14px;transition:transform var(--ease)}
.entry-link:hover svg{transform:translateX(2px)}

/* ============ 参与流程 ============ */
.flow-section{background:var(--bg)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);
}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;margin-bottom:14px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
}
.flow-card h3{font-size:17px;margin-bottom:8px}
.flow-card p{font-size:15px;line-height:1.75;color:var(--ink-600);margin:0}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--sh-1);overflow:hidden;transition:background var(--ease);
}
.faq-item:hover{background:var(--brand-50)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;
  font-size:17px;font-weight:700;color:var(--ink-900);cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  transition:transform var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px}
.faq-body p{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0}

/* ============ CTA 条 ============ */
.cta-section{background:var(--brand-50)}
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:28px 32px;background:var(--surface);
  border:1px solid var(--line);border-left:4px solid var(--accent-600);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.cta-bar h2{font-size:22px;margin-bottom:8px}
.cta-bar p{margin:0;font-size:15px;color:var(--ink-600);max-width:640px}

/* ============ 规则摘要 ============ */
.summary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 32px;max-width:960px}
.summary-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-sm);
}
.summary-item span.dot{
  flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--brand-600);
}
.summary-item p{margin:0;font-size:15px;line-height:1.75;color:var(--ink-600)}

/* ============ 页脚 ============ */
.site-footer{background:var(--night);color:rgba(255,255,255,.9);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800}
.footer-brand:hover{color:var(--sun-500)}
.footer-brand .logo-mark{background:linear-gradient(135deg,var(--brand-600),var(--brand-900))}
.footer-desc{margin:14px 0 0;font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:rgba(255,255,255,.9);margin-bottom:12px}
.footer-col li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
.footer-col a{color:rgba(255,255,255,.6)}
.footer-col a:hover{color:var(--sun-500)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--sun-500)}

/* ============ 移动端抽屉 ============ */
.drawer-overlay{
  position:fixed;inset:0;z-index:80;background:rgba(12,20,24,.45);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:min(86vw,360px);height:100%;
  display:flex;flex-direction:column;gap:8px;
  padding:16px 20px 24px;background:var(--surface);overflow-y:auto;
  transform:translateX(105%);transition:transform 220ms ease-out;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-title{font-size:16px;font-weight:800}
.drawer-close{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);font-size:20px;color:var(--ink-600);
}
.drawer-close:hover{border-color:var(--brand-600);color:var(--brand-600)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding:0 4px;
  border-bottom:1px solid var(--line);
  font-size:16px;font-weight:600;color:var(--ink-600);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand-700);background:var(--brand-50)}
.drawer-cta{margin-top:16px;width:100%}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .main-nav,.search-box{display:none}
  .menu-toggle{display:inline-flex}
  .page-hero-inner{grid-template-columns:1fr;gap:28px;min-height:0;padding-top:36px;padding-bottom:40px}
  .page-hero-visual{aspect-ratio:16/9;max-height:280px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.9}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .header-inner{height:56px}
  .brand-text{font-size:17px}
  h1{font-size:28px}
  .entry{grid-template-columns:1fr;gap:16px;padding:20px 0}
  .entry-figure{aspect-ratio:16/10}
  .flow-grid{grid-template-columns:1fr}
  .summary-grid{grid-template-columns:1fr}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:24px 20px}
  .cta-bar .btn{width:100%}
  .faq-item summary{font-size:16px;padding:14px 16px}
  .faq-body{padding:0 16px 18px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .page-hero-visual{aspect-ratio:4/3;max-height:260px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0A3B2E;
  --brand-700:#0F5C46;
  --brand-600:#12805E;
  --brand-500:#17A06F;
  --brand-100:#DCF3E9;
  --brand-50:#EFF8F3;
  --accent-600:#E8590C;
  --accent-500:#FF6B2C;
  --accent-100:#FFE9DC;
  --sun-500:#FFC53D;
  --ink-900:#10161A;
  --ink-600:#4A565E;
  --ink-400:#8A949B;
  --line:#E3E8E4;
  --bg:#F5F7F4;
  --surface:#FFFFFF;
  --night:#0C1418;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:10px;
  --radius-tag:6px;
  --shadow-1:0 1px 2px rgba(16,22,26,.06);
  --shadow-2:0 10px 24px rgba(16,22,26,.10);
  --shadow-3:0 16px 40px rgba(16,22,26,.14);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-500)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(23,160,111,.35);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.bg-surface{background:var(--surface)}
.bg-brand-50{background:var(--brand-50)}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.84);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 2px 14px rgba(16,22,26,.07);
  background:rgba(255,255,255,.94);
}
.header-inner{
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:28px;min-width:0}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;letter-spacing:-.01em;
  color:var(--ink-900);white-space:nowrap;
}
.brand:hover{color:var(--brand-700)}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--brand-600);
  display:grid;place-items:center;flex:none;
}
.logo-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;height:44px;
  padding:0 12px;
  font-size:15px;font-weight:600;color:var(--ink-600);
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link.active{color:var(--brand-700)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;
  height:2px;border-radius:2px;background:var(--brand-600);
}
.nav-right{display:flex;align-items:center;gap:14px;flex:none}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-box i{color:var(--ink-400);font-size:14px}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ink-900);font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-400)}
.search-box:focus-within{
  background:#fff;border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(23,160,111,.16);
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;color:var(--ink-900);cursor:pointer;font-size:16px;
}
.nav-toggle:hover{border-color:var(--brand-600);color:var(--brand-600)}

.drawer-overlay{
  position:fixed;inset:0;background:rgba(12,20,24,.45);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  z-index:60;
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:#fff;z-index:70;padding:20px;overflow-y:auto;
  transform:translateX(100%);transition:transform var(--ease);
  display:flex;flex-direction:column;gap:6px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-title{font-size:16px;font-weight:800}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;font-size:16px;color:var(--ink-600);cursor:pointer;
}
.drawer-link{
  display:flex;align-items:center;height:52px;padding:0 14px;
  border-radius:var(--radius-sm);font-size:16px;font-weight:600;color:var(--ink-600);
}
.drawer-link:hover{background:var(--brand-50);color:var(--brand-700)}
.drawer-link.active{background:var(--brand-100);color:var(--brand-700)}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:48px;padding:0 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;
}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px;font-family:inherit}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1.5px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:0 1px 2px rgba(232,89,12,.24)}
.btn-primary:hover{background:var(--accent-500);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(232,89,12,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(232,89,12,.24)}
.btn-primary:focus-visible{outline:3px solid rgba(232,89,12,.28);outline-offset:2px}
.btn-secondary{
  background:#fff;border-color:var(--brand-600);color:var(--brand-700);
}
.btn-secondary:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.btn-block{width:100%}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-600);
}
.link-more i{transition:transform var(--ease)}
.link-more:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:4px}
.link-more:hover i{transform:translateX(2px)}

/* ============ 英雄区（分类页紧凑版） ============ */
.hero-cat{
  background:var(--brand-50);
  border-bottom:1px solid var(--line);
  padding:64px 0 56px;
}
.hero-inner{
  display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);
  gap:48px;align-items:center;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-400);margin-bottom:20px;list-style:none;
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--ink-400);opacity:.6}
.breadcrumb .current{color:var(--ink-600);font-weight:600}
.hero-cat h1{
  font-size:clamp(30px,4vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  margin-bottom:16px;
}
.hero-cat .hero-sub{
  font-size:17px;line-height:1.75;color:var(--ink-600);max-width:560px;margin-bottom:26px;
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;
}
.fact-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-tag);
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-600);
}
.fact-chip i{color:var(--brand-600)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-shape{
  position:relative;height:240px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);overflow:hidden;
  box-shadow:var(--shadow-1);
}
.shape-block{
  position:absolute;left:0;top:0;width:56%;height:100%;background:var(--brand-600);
}
.shape-track{
  position:absolute;right:32px;top:50%;transform:translateY(-50%);
  width:124px;height:124px;border-radius:50%;border:10px solid var(--brand-100);
}
.shape-dot{
  position:absolute;right:58px;bottom:34px;width:56px;height:56px;
  border-radius:12px;background:var(--accent-600);transform:rotate(12deg);
}
.shape-line{
  position:absolute;left:24px;bottom:28px;width:120px;height:4px;border-radius:4px;
  background:var(--sun-500);
}

/* ============ 主内容：卡片网格 + 锚点侧栏 ============ */
.layout-grid{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:32px;align-items:start;
}
.panel-head{margin-bottom:28px}
.panel-head h2{
  font-size:clamp(24px,2.6vw,32px);line-height:1.28;font-weight:700;margin-bottom:10px;
}
.panel-head p{font-size:16px;color:var(--ink-600);max-width:680px}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.plan-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  scroll-margin-top:96px;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#d5ded8}
.plan-figure{
  aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:var(--brand-50);
}
.plan-figure img{width:100%;height:100%;object-fit:cover}
.plan-tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:3px 10px;border-radius:var(--radius-tag);
  background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.plan-tag.accent{background:var(--accent-100);color:var(--accent-600)}
.plan-title{font-size:17px;line-height:1.45;font-weight:700;transition:color var(--ease)}
.plan-card:hover .plan-title{color:var(--brand-600)}
.plan-desc{font-size:15px;line-height:1.75;color:var(--ink-600)}
.plan-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-400);
}
.plan-meta .num{font-weight:600;color:var(--ink-600)}

.anchor-panel{
  position:sticky;top:88px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px;box-shadow:var(--shadow-1);
}
.anchor-panel h3{
  font-size:14px;font-weight:700;color:var(--ink-400);
  letter-spacing:.04em;margin-bottom:12px;
}
.anchor-list{list-style:none;display:flex;flex-direction:column;gap:2px}
.anchor-list a{
  display:block;padding:10px 12px;border-radius:8px;
  font-size:15px;font-weight:600;color:var(--ink-600);
  transition:background-color var(--ease),color var(--ease),padding-left var(--ease);
}
.anchor-list a:hover{background:var(--brand-50);color:var(--brand-600);padding-left:16px}
.anchor-note{
  margin-top:16px;padding:14px;border-radius:12px;background:var(--brand-50);
  font-size:13px;line-height:1.8;color:var(--ink-600);
}
.anchor-cta{margin-top:16px}

/* ============ 说明段 ============ */
.note-block{max-width:820px}
.note-block h2{
  font-size:clamp(24px,2.6vw,32px);line-height:1.28;font-weight:700;margin-bottom:10px;
}
.note-block .lead{font-size:16px;color:var(--ink-600);margin-bottom:20px}
.note-block p{font-size:16px;line-height:1.9;margin-bottom:1em}
.note-list{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:20px}
.note-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:14px 16px;border-radius:12px;background:#fff;border:1px solid var(--line);
  font-size:15px;color:var(--ink-600);line-height:1.75;
}
.note-list i{color:var(--brand-600);margin-top:6px;font-size:13px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item.open{border-color:var(--brand-100);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px;border:0;background:transparent;cursor:pointer;
  font-size:17px;font-weight:700;color:var(--ink-900);text-align:left;line-height:1.5;
  transition:background-color var(--ease);
}
.faq-q:hover{background:var(--brand-50)}
.faq-icon{
  flex:none;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand-100);color:var(--brand-700);
  font-size:13px;transition:transform var(--ease),background-color var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 240ms ease-out,opacity 240ms ease-out;
  opacity:0;
}
.faq-item.open .faq-a{max-height:320px;opacity:1}
.faq-a p{
  padding:0 18px 18px;font-size:15px;line-height:1.8;color:var(--ink-600);
}

/* ============ 表单 ============ */
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-1);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:40px;align-items:start;
}
.form-side h2{font-size:clamp(24px,2.6vw,32px);line-height:1.28;font-weight:700;margin-bottom:10px}
.form-side p{font-size:15px;line-height:1.8;color:var(--ink-600);margin-bottom:18px}
.form-points{list-style:none;display:flex;flex-direction:column;gap:10px}
.form-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-600)}
.form-points i{color:var(--brand-600);margin-top:5px;font-size:12px}
.form-fields{display:flex;flex-direction:column;gap:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink-900)}
.field .req{color:var(--accent-600)}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;color:var(--ink-900);font-size:15px;font-family:inherit;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field select{
  appearance:none;-webkit-appearance:none;padding-right:42px;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' stroke='%234A565E' stroke-width='1.8' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
}
.field input::placeholder{color:var(--ink-400)}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,160,111,.18);
}
.form-tip{font-size:13px;line-height:1.7;color:var(--ink-400)}

/* ============ 页脚 ============ */
.site-footer{background:var(--night);color:rgba(255,255,255,.9);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;color:#fff;
}
.footer-brand:hover{color:#fff}
.footer-brand .logo-mark{background:var(--brand-600)}
.footer-desc{
  margin-top:14px;max-width:300px;
  font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);
}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:6px}
.footer-col li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--sun-500)}
.footer-bottom{
  margin-top:48px;padding:20px 0 24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:8px 28px;
  font-size:13px;line-height:1.8;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:var(--sun-500)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .main-nav,.search-box{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-shape{height:200px}
  .layout-grid{grid-template-columns:1fr;gap:32px}
  .anchor-panel{position:static}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .form-card{grid-template-columns:1fr;gap:28px;padding:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .header-inner{height:56px}
  .hero-cat{padding:40px 0 36px}
  .hero-cat h1{font-size:28px}
  .hero-shape{height:170px}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .plan-card{padding:16px}
  .note-list{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:16px}
  .form-card{padding:20px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn-block-mobile{width:100%}
}
@media (max-width:520px){
  .hero-cat h1{font-size:26px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
}