/* roulang page: index */
:root{
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --band-dark:#0F1A17;
  --brand-700:#0E4F45;
  --brand-600:#14655A;
  --brand-50:#DCEAE4;
  --accent-600:#C07B33;
  --accent-700:#A9682A;
  --accent-50:#F6E7D2;
  --line:#E2DED4;
  --text:#1B2320;
  --muted:#5E6A64;
  --ok:#2E7D5B;
  --warn:#B4562F;
  --privacy-bg:#EFF2EC;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.05),0 8px 24px -12px rgba(15,26,23,.12);
  --shadow-2:0 2px 4px rgba(15,26,23,.06),0 20px 48px -20px rgba(15,26,23,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-section:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--accent-600);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.3em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em;}
h1{font-size:clamp(30px,3.6vw,48px);line-height:1.22;margin:0 0 20px;}
h2{font-size:clamp(24px,2.4vw,34px);margin:0 0 14px;}
h3{font-size:clamp(19px,1.6vw,22px);margin:0 0 10px;}
button{font:inherit;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--space-section) 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{margin-top:0;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:17px;margin:0;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head-row .section-head{margin-bottom:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-600);}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);font-size:12.5px;font-weight:600;line-height:1.6;}
.badge-accent{background:var(--accent-50);color:var(--accent-700);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-700);border-bottom:1px solid rgba(14,79,69,.32);padding-bottom:1px;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease);}
.text-link:hover{color:var(--accent-600);border-color:var(--accent-600);}
.text-link::after{content:"→";font-size:13px;transform:translateY(-1px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:0 10px 22px -14px rgba(192,123,51,.95);}
.btn-primary:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;border:1.5px solid var(--brand-700);color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:72px;display:flex;align-items:center;
  background:rgba(247,245,239,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(15,26,23,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 30px -26px rgba(15,26,23,.6);
  transition:height .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{height:64px;background:rgba(247,245,239,.95);box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 2px 4px rgba(15,26,23,.06),0 14px 34px -20px rgba(15,26,23,.3);}
.header-inner{display:flex;align-items:center;gap:20px;width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-size:16.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.logo:hover{color:var(--brand-700);}
.logo-mark{width:12px;height:12px;border-radius:4px;background:var(--accent-600);box-shadow:0 0 0 3px rgba(192,123,51,.16);flex:none;}
.logo-text b{font-weight:700;}
.logo-text span{color:var(--muted);font-weight:600;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.main-nav a{position:relative;display:inline-block;padding:8px 12px;border-radius:8px;font-size:14.5px;color:var(--muted);transition:color .18s var(--ease),background .18s var(--ease);}
.main-nav a:hover{color:var(--brand-700);background:rgba(220,234,228,.55);}
.main-nav a.active{color:var(--brand-700);font-weight:600;}
.main-nav a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--accent-600);}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  border-radius:var(--radius-btn);border:1px solid var(--line);
  background:rgba(255,255,255,.72);color:var(--brand-700);cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.icon-btn:hover{background:#fff;border-color:var(--brand-50);transform:translateY(-1px);}
.icon-btn svg{width:17px;height:17px;}
.nav-toggle{display:none;}
.mobile-drawer{
  position:fixed;inset:0;z-index:120;display:none;
  background:var(--paper);padding:22px 18px 28px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-links{display:grid;gap:6px;margin-bottom:24px;}
.drawer-links a{display:block;padding:13px 14px;border-radius:12px;background:#fff;border:1px solid var(--line);font-size:16px;color:var(--text);font-weight:600;}
.drawer-links a.active{color:var(--brand-700);border-color:var(--brand-50);background:var(--brand-50);}
.drawer-foot{border-top:1px solid var(--line);padding-top:20px;display:grid;gap:12px;}
.drawer-foot p{font-size:13.5px;color:var(--muted);margin:0;}

/* ============ 首屏 ============ */
.hero{position:relative;padding:150px 0 92px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;opacity:.18;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,245,239,.55) 0%,rgba(247,245,239,.9) 62%,var(--paper) 100%);
}
.hero > .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;}
.hero h1{margin-bottom:22px;}
.hero h1 em{font-style:normal;color:var(--brand-700);}
.hero-sub{font-size:17.5px;line-height:1.8;color:var(--muted);max-width:520px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 26px;padding-top:22px;border-top:1px solid var(--line);}
.hero-trust li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.hero-trust li::before{content:"";width:15px;height:15px;border-radius:50%;background:var(--brand-50);border:1px solid rgba(14,79,69,.25);flex:none;position:relative;}
.hero-trust li::after{content:"";position:absolute;}
.hero-trust li span{display:inline;}
.preview-card{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-2);
}
.preview-media{position:relative;aspect-ratio:16/11;background:var(--brand-700);}
.preview-media img{width:100%;height:100%;object-fit:cover;}
.preview-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,26,23,.15) 0%,rgba(15,26,23,.62) 100%);}
.preview-tag{position:absolute;top:16px;left:16px;z-index:2;background:rgba(255,255,255,.9);color:var(--brand-700);padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;}
.mock-panel{
  position:relative;margin:-58px 18px 18px;z-index:3;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-radius:14px;
  padding:20px 20px 22px;box-shadow:var(--shadow-1);
}
.mock-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:4px;}
.mock-note{font-size:12.5px;color:var(--muted);margin-bottom:16px;}
.mock-field{margin-bottom:12px;}
.mock-label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;font-weight:600;}
.mock-input{
  height:42px;border-radius:10px;border:1px solid var(--line);background:#FBFBF8;
  display:flex;align-items:center;padding:0 14px;font-size:13.5px;color:var(--muted);
}
.mock-btn{margin-top:16px;height:42px;border-radius:10px;background:var(--accent-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;letter-spacing:.02em;}
.mock-foot{display:flex;justify-content:space-between;margin-top:12px;font-size:12px;color:var(--muted);}

/* ============ 痛点提问 ============ */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.pain-card{
  position:relative;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 22px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.pain-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-50);transition:background .2s var(--ease);}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#cfe0d8;}
.pain-card:hover::before{background:var(--accent-600);}
.pain-num{font-size:12.5px;font-weight:700;color:var(--accent-600);letter-spacing:.08em;margin-bottom:12px;display:block;}
.pain-card h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.pain-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}

/* ============ 方案卡片（错位网格） ============ */
.solution-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.sol-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.sol-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#cfe0d8;}
.sol-main{grid-column:span 7;}
.sol-side{grid-column:span 5;}
.sol-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-50);}
.sol-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.sol-card:hover .sol-media img{transform:scale(1.03);}
.sol-body{padding:28px 28px 26px;display:flex;flex-direction:column;gap:14px;flex:1;}
.sol-body h3{margin:0;font-size:22px;}
.sol-body .sol-desc{color:var(--muted);font-size:15px;line-height:1.78;margin:0;}
.sol-points{display:grid;gap:8px;margin-top:2px;}
.sol-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text);line-height:1.7;}
.sol-points li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand-600);transform:rotate(45deg);}
.sol-body .text-link{margin-top:auto;align-self:flex-start;}
.sol-side .sol-body{padding:24px 24px 22px;}
.sol-side .sol-body h3{font-size:19px;}
.sol-side .sol-media{aspect-ratio:16/7;}

/* ============ 数据带 ============ */
.band{background:var(--band-dark);color:#F3F1EA;padding:78px 0;}
.band-title{font-size:14px;letter-spacing:.14em;color:rgba(243,241,234,.6);text-transform:uppercase;margin-bottom:34px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:6px 26px;border-left:1px solid rgba(255,255,255,.12);}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:clamp(32px,3.4vw,46px);font-weight:700;line-height:1.1;color:var(--accent-600);letter-spacing:-.02em;margin-bottom:10px;}
.stat-num small{font-size:16px;font-weight:600;margin-left:4px;color:rgba(243,241,234,.8);}
.stat-label{font-size:14px;color:rgba(243,241,234,.72);line-height:1.7;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#cfe0d8;}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--brand-50);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:18px;line-height:1.55;margin:0;}
.news-body h3 a{color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a:hover{color:var(--brand-700);}
.news-summary{font-size:14px;color:var(--muted);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);}
.news-meta .read{color:var(--brand-700);font-weight:600;}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:40px 24px;text-align:center;color:var(--muted);
}
.empty-state .empty-icon{width:44px;height:44px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);display:grid;place-items:center;font-size:20px;}
.empty-state p{margin:0;font-size:15px;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside{position:sticky;top:104px;}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{color:var(--muted);font-size:15.5px;margin-bottom:22px;}
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.faq-item.is-open{border-color:#cfe0d8;box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q:hover{color:var(--brand-700);}
.faq-q .chev{flex:none;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:var(--brand-50);color:var(--brand-700);transition:transform .25s var(--ease),background .2s var(--ease);}
.faq-q .chev svg{width:12px;height:12px;}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);background:var(--accent-50);color:var(--accent-700);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:260px;}
.faq-a p{margin:0;padding:0 22px 22px;font-size:14.8px;color:var(--muted);line-height:1.8;}

/* ============ 表单区 ============ */
.lead-band{background:linear-gradient(180deg,var(--paper) 0%,#F2F0E8 100%);}
.lead-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.lead-copy h2{margin-bottom:16px;}
.lead-copy > p{color:var(--muted);font-size:16px;margin-bottom:28px;}
.lead-points{display:grid;gap:14px;}
.lead-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.8px;color:var(--text);line-height:1.75;}
.lead-points li .dot{flex:none;width:22px;height:22px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:3px;}
.form-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-2);padding:32px 32px 30px;
}
.form-card .modal-trigger{
  position:absolute;top:16px;right:16px;
  height:32px;padding:0 12px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper);color:var(--muted);font-size:12.5px;font-weight:600;cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.form-card .modal-trigger:hover{color:var(--brand-700);border-color:var(--brand-50);background:var(--brand-50);}
.form-card h3{margin-bottom:6px;font-size:22px;}
.form-card .form-hint{font-size:14px;color:var(--muted);margin-bottom:24px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13px;font-weight:600;color:var(--text);}
.field label .req{color:var(--warn);margin-left:2px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--text);font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  appearance:none;
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:38px;}
.field textarea{height:auto;min-height:88px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);opacity:.75;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--brand-50);}
.field.error input,.field.error select{border-color:var(--warn);}
.field .err-msg{font-size:12.5px;color:var(--warn);display:none;}
.field.error .err-msg{display:block;}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-top:18px;}
.check-row input[type="checkbox"]{width:17px;height:17px;margin-top:4px;accent-color:var(--brand-600);flex:none;}
.check-row label{font-size:13.5px;color:var(--muted);line-height:1.7;}
.check-row label a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.form-submit{margin-top:22px;}
.form-status{margin-top:14px;font-size:14px;color:var(--ok);display:none;}
.form-status.is-visible{display:block;}

/* ============ 隐私条 ============ */
.privacy-strip{background:var(--privacy-bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.privacy-inner{display:flex;gap:20px;align-items:flex-start;padding:34px 0;}
.privacy-icon{
  flex:none;width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand-700);
}
.privacy-icon svg{width:21px;height:21px;}
.privacy-inner h3{font-size:16.5px;margin-bottom:6px;}
.privacy-inner p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}
.privacy-inner p a{font-weight:600;text-decoration:underline;text-underline-offset:3px;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--band-dark);color:#F3F1EA;border-radius:24px;
  padding:56px 56px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(243,241,234,.72);font-size:15.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{border-color:rgba(243,241,234,.55);color:#F3F1EA;}
.cta-band .btn-ghost:hover{background:rgba(243,241,234,.12);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--band-dark);color:rgba(243,241,234,.72);padding:72px 0 0;margin-top:var(--space-section);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.footer-brand .logo{color:#fff;font-size:17px;margin-bottom:18px;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(243,241,234,.66);margin:0 0 18px;}
.footer-contact{display:grid;gap:8px;font-size:13.5px;color:rgba(243,241,234,.72);}
.footer-contact span b{color:#F3F1EA;font-weight:600;}
.footer-col h4{font-size:14px;color:#F3F1EA;letter-spacing:.04em;margin-bottom:18px;font-weight:600;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:rgba(243,241,234,.7);font-size:14px;transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--accent-600);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(243,241,234,.58);}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:rgba(243,241,234,.66);}
.footer-bottom a:hover{color:var(--accent-600);}

/* ============ 弹层 ============ */
.modal{
  position:fixed;inset:0;z-index:200;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(15,26,23,.55);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.modal.is-open{display:flex;}
.modal-panel{
  position:relative;width:100%;max-width:480px;background:var(--surface);
  border-radius:20px;box-shadow:var(--shadow-2);padding:32px;
  max-height:88vh;overflow-y:auto;
}
.modal-panel h3{font-size:21px;margin-bottom:6px;}
.modal-panel .modal-sub{font-size:14px;color:var(--muted);margin-bottom:22px;}
.modal-close{
  position:absolute;top:14px;right:14px;width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line);background:var(--paper);color:var(--muted);
  display:grid;place-items:center;cursor:pointer;font-size:16px;line-height:1;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.modal-close:hover{background:var(--brand-50);color:var(--brand-700);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .header-inner{padding:0 28px;}
  .hero{padding:140px 0 80px;}
  .hero-grid{gap:40px;}
  .main-nav a{padding:8px 9px;font-size:14px;}
}
@media (max-width:1023px){
  :root{--space-section:80px;}
  .container{padding:0 24px;}
  .header-inner{padding:0 24px;}
  .main-nav,.header-actions .btn,.header-actions .icon-btn{display:none;}
  .nav-toggle{display:grid;margin-left:auto;}
  .hero{padding:124px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-sub{max-width:none;}
  .preview-card{max-width:540px;}
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .solution-grid{grid-template-columns:repeat(2,1fr);}
  .sol-main,.sol-side{grid-column:span 1;}
  .solution-grid .sol-main{grid-column:span 2;}
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:34px;}
  .stat{padding:6px 20px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
  .lead-wrap{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:44px 36px;border-radius:20px;}
}
@media (max-width:767px){
  :root{--space-section:60px;}
  .container{padding:0 18px;}
  .header-inner{padding:0 18px;}
  .site-header{height:64px;}
  .site-header.is-scrolled{height:60px;}
  .logo{font-size:15px;}
  .hero{padding:108px 0 56px;}
  h1{font-size:31px;}
  h2{font-size:24px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 160px;}
  .hero-trust{gap:10px 18px;}
  .section-head{margin-bottom:30px;}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:14px;}
  .pain-grid{grid-template-columns:1fr;}
  .solution-grid{grid-template-columns:1fr;}
  .solution-grid .sol-main{grid-column:span 1;}
  .sol-body{padding:22px 20px;}
  .sol-side .sol-body{padding:20px;}
  .band{padding:56px 0;}
  .stat-grid{grid-template-columns:1fr;row-gap:0;}
  .stat{border-left:0;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;}
  .stat:first-child{border-top:0;padding-top:0;}
  .news-grid{grid-template-columns:1fr;}
  .form-card{padding:24px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .privacy-inner{flex-direction:column;gap:14px;padding:26px 0;}
  .cta-band{padding:34px 24px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:38px;}
  .site-footer{padding-top:52px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .modal-panel{padding:24px 20px;}
}
@media (max-width:419px){
  h1{font-size:28px;}
  .hero-actions .btn{width:100%;flex:1 1 100%;}
  .mock-panel{margin:-46px 12px 12px;padding:16px;}
  .btn-sm{height:36px;}
  .form-card .modal-trigger{position:static;margin-bottom:14px;}
}

/* roulang page: article */
:root{
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --band-dark:#0F1A17;
  --brand-700:#0E4F45;
  --brand-600:#14655A;
  --brand-50:#DCEAE4;
  --accent-600:#C07B33;
  --accent-700:#A9682A;
  --accent-50:#F6E7D2;
  --line:#E2DED4;
  --text:#1B2320;
  --muted:#5E6A64;
  --ok:#2E7D5B;
  --warn:#B4562F;
  --shadow-1:0 1px 2px rgba(15,26,23,.05),0 8px 24px -12px rgba(15,26,23,.12);
  --shadow-2:0 2px 4px rgba(15,26,23,.06),0 20px 48px -20px rgba(15,26,23,.20);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --t:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent-700)}
button{font:inherit}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(247,245,239,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(15,26,23,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 8px 24px -20px rgba(15,26,23,.45);
  transition:background var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{
  background:rgba(247,245,239,.94);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 12px 30px -22px rgba(15,26,23,.6);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height var(--t)}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.logo-mark{width:14px;height:14px;border-radius:4px;background:var(--accent-600);box-shadow:0 0 0 3px rgba(192,123,51,.16)}
.logo-text{font-size:17px;line-height:1.2;white-space:nowrap}
.logo-text b{font-weight:700;color:var(--brand-700)}
.logo-text span{color:var(--muted);font-size:15px}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{position:relative;font-size:15px;color:var(--text);padding:6px 0;white-space:nowrap}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent-600);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.main-nav a:hover,.main-nav a.active{color:var(--brand-700)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--surface);color:var(--brand-700);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color var(--t),background var(--t),transform var(--t);
}
.icon-btn:hover{background:var(--brand-50);border-color:var(--brand-50);transform:translateY(-1px)}
.menu-toggle{display:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn:disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed}

/* mobile drawer */
.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:99;
  background:var(--paper);
  padding:20px 18px 40px;
  overflow-y:auto;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity var(--t),transform var(--t);
  border-top:1px solid var(--line);
}
.mobile-drawer.open{opacity:1;transform:none;pointer-events:auto}
.mobile-drawer .drawer-label{font-size:12.5px;letter-spacing:.16em;color:var(--muted);margin-bottom:10px}
.mobile-drawer a{
  display:block;padding:14px 4px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:hover{color:var(--brand-700)}
.mobile-drawer .drawer-cta{margin-top:22px;width:100%}
.mobile-drawer .drawer-contact{margin-top:18px;font-size:13px;color:var(--muted);line-height:1.9}

/* ---------- page shell ---------- */
main{padding-top:108px;padding-bottom:96px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent-700)}
.breadcrumb .sep{color:#B9B4A8}
.breadcrumb .current{color:var(--text)}

.article-head{max-width:820px;margin:0 auto;text-align:left}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);
  font-size:12.5px;font-weight:600;line-height:1.7;
}
.badge-accent{background:var(--accent-50);color:var(--accent-700)}
.article-head h1{
  font-size:44px;line-height:1.22;margin:20px 0 0;letter-spacing:-.015em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:14px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3BEB2}
.article-cover{
  max-width:960px;margin:34px auto 0;
  border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--shadow-1);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(0,1fr);
  gap:48px;justify-content:center;margin-top:56px;
}
@media (min-width:1180px){
  .article-layout.has-aside{grid-template-columns:minmax(0,760px) 264px;gap:64px}
}
.article-main{min-width:0;max-width:760px;margin:0 auto;width:100%}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--text)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.35em}
.article-body h2{
  position:relative;font-size:28px;line-height:1.3;
  margin:2.1em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;
  background:var(--brand-700);
}
.article-body h3{font-size:21px;line-height:1.4;margin:1.7em 0 .65em;font-weight:600}
.article-body h4{font-size:18px;margin:1.5em 0 .6em;font-weight:600;color:var(--brand-700)}
.article-body ul{list-style:none;margin:0 0 1.4em;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.62em}
.article-body ul li::before{
  content:"";position:absolute;left:5px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--accent-600);
}
.article-body ol{margin:0 0 1.4em;padding-left:24px}
.article-body ol li{margin-bottom:.62em}
.article-body blockquote{
  margin:1.7em 0;padding:18px 24px;background:var(--paper);
  border-left:3px solid var(--accent-600);border-radius:0 10px 10px 0;
  color:var(--muted);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent-700)}
.article-body img{border-radius:var(--r-img);margin:1.6em 0 .8em}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0}

/* empty state */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:40px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;background:var(--brand-50);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
}
.empty-state h2{font-size:20px}
.empty-state p{color:var(--muted);font-size:15px;max-width:420px}

/* ---------- toc ---------- */
.article-aside{display:none}
@media (min-width:1180px){
  .article-aside{display:block}
  .toc{position:sticky;top:104px}
}
.toc h2{
  font-size:13px;letter-spacing:.16em;color:var(--muted);font-weight:600;
  margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);
  text-transform:uppercase;
}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc li{margin:0}
.toc a{
  display:block;padding:8px 10px 8px 12px;font-size:14px;line-height:1.6;color:var(--muted);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:color var(--t),background var(--t),border-color var(--t);
}
.toc a:hover{color:var(--brand-700);background:var(--brand-50)}
.toc a.active{color:var(--brand-700);font-weight:600;border-left-color:var(--accent-600);background:var(--brand-50)}

/* ---------- tag row ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:13px;color:var(--muted);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--muted);font-size:13px;
  transition:border-color var(--t),color var(--t),background var(--t),transform var(--t);
}
.tag:hover{color:var(--brand-700);border-color:var(--brand-50);background:var(--brand-50);transform:translateY(-1px)}
.back-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand-700)}
.back-link svg{transition:transform var(--t)}
.back-link:hover{color:var(--accent-700)}
.back-link:hover svg{transform:translateX(-3px)}

/* ---------- related ---------- */
.section{margin-top:88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:30px;line-height:1.3}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px}
.section-head .more{font-size:14px;font-weight:600;color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;white-space:nowrap}
.section-head .more:hover{color:var(--accent-700)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CDE0D8}
.card-media{position:relative;background:var(--brand-50);overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px;line-height:1.45;font-weight:600}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);padding-top:6px}
.card-foot .read{font-weight:600;color:var(--brand-700)}
.card:hover .card-foot .read{color:var(--accent-700)}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:88px;background:var(--band-dark);color:#fff;border-radius:20px;
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:var(--shadow-2);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,123,51,.28),rgba(192,123,51,0) 70%);
  pointer-events:none;
}
.cta-band h2{font-size:30px;line-height:1.32;position:relative}
.cta-band p{color:rgba(255,255,255,.72);font-size:15.5px;margin-top:12px;max-width:560px;position:relative}
.cta-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;position:relative}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--band-dark);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-bottom:52px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:rgba(255,255,255,.6)}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:360px;color:rgba(255,255,255,.66)}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(255,255,255,.66)}
.footer-contact b{color:#fff;font-weight:600}
.footer-col h4{font-size:14px;letter-spacing:.14em;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--accent-600)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--accent-600)}

/* ---------- breakpoints ---------- */
@media (max-width:1279px){
  .card-grid{gap:20px}
  .cta-band{padding:44px 36px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .header-actions .btn-sm{display:none}
  .menu-toggle{display:inline-flex}
  main{padding-top:96px;padding-bottom:72px}
  .article-head h1{font-size:36px}
  .article-body h2{font-size:25px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band{flex-direction:column;align-items:flex-start;gap:26px;padding:40px 32px}
  .section{margin-top:64px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  main{padding-top:88px;padding-bottom:56px}
  body{font-size:16px}
  .article-head h1{font-size:30px;line-height:1.28;margin-top:16px}
  .article-layout{margin-top:36px;gap:32px}
  .article-body{font-size:16px;line-height:1.88}
  .article-body h2{font-size:22px;margin-top:1.9em}
  .article-body h3{font-size:19px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:24px}
  .cta-band{border-radius:16px;padding:32px 22px}
  .cta-band h2{font-size:23px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .site-footer{padding-top:52px;margin-top:64px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-cover{margin-top:24px}
}
@media (max-width:420px){
  .article-head h1{font-size:26px}
  .logo-text{font-size:15px}
  .logo-text span{font-size:13px}
  .card{box-shadow:none}
}

/* roulang page: category1 */
:root{
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --band-dark:#0F1A17;
  --brand-700:#0E4F45;
  --brand-600:#14655A;
  --brand-50:#DCEAE4;
  --accent-600:#C07B33;
  --accent-700:#A9682A;
  --accent-50:#F6E7D2;
  --line:#E2DED4;
  --text:#1B2320;
  --muted:#5E6A64;
  --ok:#2E7D5B;
  --warn:#B4562F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.05),0 8px 24px -12px rgba(15,26,23,.12);
  --shadow-2:0 2px 4px rgba(15,26,23,.06),0 20px 48px -20px rgba(15,26,23,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:100px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent-700);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em;}
h1{font-size:44px;line-height:1.22;}
h2{font-size:33px;line-height:1.28;margin-top:1.6em;margin-bottom:.55em;}
h3{font-size:21px;line-height:1.4;}
p{margin:0 0 1.3em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:740px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-700);
  background:var(--brand-50);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent-600);}
.lead{font-size:17px;color:var(--muted);line-height:1.85;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 22px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px);}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:9px;}
.btn-lg{padding:16px 28px;font-size:16px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;color:var(--brand-700);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px;
}
.text-link:hover{color:var(--accent-700);}
.text-link::after{content:"→";font-weight:600;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;line-height:1.5;
  padding:4px 10px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);
}
.badge-accent{background:var(--accent-50);color:var(--accent-700);}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--muted);}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(247,245,239,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(15,26,23,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 6px 24px -20px rgba(15,26,23,.35);
  transition:background-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,245,239,.94);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 2px 18px -10px rgba(15,26,23,.3);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .24s var(--ease);}
.site-header.is-scrolled .nav-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:11px;height:11px;border-radius:3px;background:var(--accent-600);
  box-shadow:0 0 0 4px rgba(192,123,51,.14);
  flex-shrink:0;
}
.logo-text{font-size:16.5px;font-weight:700;color:var(--text);letter-spacing:-.01em;white-space:nowrap;}
.logo-text b{font-weight:700;color:var(--brand-700);}
.logo-text span{font-weight:500;color:var(--muted);}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap;}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 12px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--text);
  white-space:nowrap;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.main-nav a:hover{color:var(--brand-700);background:rgba(220,234,228,.65);}
.main-nav a.active{color:var(--brand-700);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--accent-600);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid rgba(15,26,23,.12);border-radius:10px;
  color:var(--brand-700);cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.icon-btn:hover{background:var(--brand-50);border-color:var(--brand-50);color:var(--brand-700);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  background:transparent;border:1px solid rgba(15,26,23,.14);
  cursor:pointer;color:var(--text);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:17px;height:1.8px;background:currentColor;position:relative;transition:background-color .2s;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:1.8px;background:currentColor;transition:transform .22s var(--ease);
}
.nav-toggle span::before{top:-5.5px;}
.nav-toggle span::after{top:5.5px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(5.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-5.5px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  position:fixed;inset:0;z-index:99;
  background:var(--paper);
  padding:96px 22px 40px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;flex-direction:column;}
.mobile-drawer .drawer-label{
  font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--muted);
  margin-bottom:10px;
}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;border-bottom:1px solid var(--line);
  font-size:17px;font-weight:600;color:var(--text);
}
.mobile-drawer a.drawer-link:hover{color:var(--brand-700);}
.mobile-drawer a.drawer-link::after{content:"›";color:var(--muted);font-size:20px;line-height:1;}
.mobile-drawer .drawer-cta{margin-top:28px;display:flex;flex-direction:column;gap:12px;}
.mobile-drawer .drawer-contact{margin-top:24px;font-size:13.5px;color:var(--muted);line-height:1.9;}

/* ============ 页首横幅 ============ */
.page-banner{
  position:relative;
  display:flex;align-items:flex-end;
  min-height:286px;
  padding:132px 0 48px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(15,26,23,.9) 0%,rgba(15,26,23,.74) 48%,rgba(15,26,23,.4) 100%);
}
.page-banner .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:var(--accent-50);}
.breadcrumb .sep{color:rgba(255,255,255,.42);}
.breadcrumb .current{color:#fff;}
.page-banner h1{color:#fff;font-size:44px;max-width:820px;}
.page-banner .banner-sub{
  margin-top:16px;max-width:660px;
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);
}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner-meta .badge{background:rgba(255,255,255,.14);color:#fff;}
.banner-meta .badge-accent{background:rgba(192,123,51,.9);color:#fff;}

/* ============ 目录 + 条目 ============ */
.layout{
  display:grid;
  grid-template-columns:296px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.toc{
  position:sticky;top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
}
.toc h2{
  font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--brand-700);
  margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.toc h2:not(:first-child){margin-top:24px;}
.toc ol{counter-reset:toc;}
.toc ol li{counter-increment:toc;}
.toc ol a{
  display:flex;gap:10px;
  padding:7px 0;
  font-size:14px;line-height:1.6;color:var(--muted);
  transition:color .18s var(--ease);
}
.toc ol a::before{
  content:counter(toc,decimal-leading-zero);
  font-size:12px;font-weight:700;color:var(--accent-700);
  font-variant-numeric:tabular-nums;flex-shrink:0;padding-top:2px;
}
.toc ol a:hover,.toc ol a.is-current{color:var(--brand-700);}
.toc ol a.is-current{font-weight:600;}
.toc .toc-note{
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.75;color:var(--muted);
}

.entry-list{display:flex;flex-direction:column;}
.entry-item{
  display:grid;
  grid-template-columns:48px minmax(0,1fr);
  gap:20px;
  padding:28px 0;
  border-bottom:1px solid var(--line);
}
.entry-item:first-child{padding-top:0;}
.entry-item:last-child{border-bottom:none;padding-bottom:0;}
.entry-num{
  width:44px;height:32px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-50);color:var(--accent-700);
  border-radius:9px;
  font-size:13.5px;font-weight:700;font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.entry-body h3{font-size:21px;margin-bottom:8px;}
.entry-body p{color:var(--muted);font-size:15.5px;line-height:1.8;margin:0;}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.spec-figure{margin:0 0 34px;}
.spec-figure img{width:100%;height:auto;border-radius:var(--radius-img);box-shadow:var(--shadow-1);}
.spec-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.7;}

/* ============ 数据带 ============ */
.stats-band{background:var(--band-dark);color:#fff;padding:72px 0;}
.stats-band .band-title{
  font-size:15px;font-weight:600;letter-spacing:.04em;
  color:rgba(255,255,255,.66);margin:0 0 32px;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:0 26px;}
.stat:first-child{padding-left:0;}
.stat + .stat{border-left:1px solid rgba(255,255,255,.12);}
.stat b{
  display:block;
  font-size:44px;line-height:1.1;font-weight:700;letter-spacing:-.02em;
  color:#E3B27A;font-variant-numeric:tabular-nums;
}
.stat b small{font-size:17px;font-weight:600;margin-left:2px;color:#E3B27A;}
.stat span{display:block;margin-top:12px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.66);}

/* ============ 检查清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.check-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px 28px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-50);}
.check-card .badge{margin-bottom:14px;}
.check-card h3{font-size:19px;margin-bottom:14px;}
.check-card ul li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;line-height:1.8;color:var(--muted);
  margin-bottom:9px;
}
.check-card ul li:last-child{margin-bottom:0;}
.check-card ul li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:var(--brand-50);border:1.5px solid var(--brand-600);
}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-50);
  border-top:1px solid rgba(14,79,69,.1);
  border-bottom:1px solid rgba(14,79,69,.1);
  padding:72px 0;
}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr);
  gap:40px;align-items:center;
}
.cta-inner h2{margin:0 0 14px;font-size:31px;line-height:1.3;}
.cta-inner p{color:var(--muted);font-size:16px;margin:0;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--band-dark);
  color:rgba(255,255,255,.72);
  padding:68px 0 26px;
  font-size:14.5px;
  line-height:1.85;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.site-footer .logo{margin-bottom:18px;}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-text b{color:#fff;}
.site-footer .logo-text span{color:rgba(255,255,255,.62);}
.footer-brand p{color:rgba(255,255,255,.66);font-size:14px;margin:0 0 18px;max-width:360px;}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:rgba(255,255,255,.6);}
.footer-contact b{color:rgba(255,255,255,.88);font-weight:600;}
.footer-col h4{font-size:15px;color:#fff;margin:0 0 16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:rgba(255,255,255,.68);font-size:14px;transition:color .18s var(--ease);}
.footer-col ul a:hover{color:#E3B27A;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;align-items:center;}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:#E3B27A;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .nav-inner{gap:14px;}
  .main-nav a{padding:8px 9px;font-size:14px;}
  .layout{grid-template-columns:268px minmax(0,1fr);gap:40px;}
}
@media (max-width:1023px){
  h1{font-size:36px;}
  .page-banner h1{font-size:36px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn{display:none;}
  .layout{grid-template-columns:1fr;gap:32px;}
  .toc{position:static;top:auto;}
  .toc ol{display:grid;grid-template-columns:1fr 1fr;gap:0 22px;}
  .stats-grid{grid-template-columns:1fr 1fr;row-gap:34px;}
  .stat{padding:0 22px;}
  .stat:nth-child(odd){padding-left:0;}
  .stat:nth-child(3){border-left:none;padding-left:0;}
  .check-grid{grid-template-columns:1fr 1fr;}
  .cta-inner{grid-template-columns:1fr;gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  h2{font-size:28px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  h1{font-size:31px;}
  .page-banner{padding:116px 0 38px;min-height:0;}
  .page-banner h1{font-size:30px;}
  .page-banner .banner-sub{font-size:15.5px;margin-top:12px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  h2{font-size:25px;}
  .entry-item{grid-template-columns:1fr;gap:12px;padding:24px 0;}
  .entry-num{width:42px;height:28px;}
  .entry-body h3{font-size:19px;}
  .stats-band{padding:52px 0;}
  .stats-grid{grid-template-columns:1fr 1fr;row-gap:28px;}
  .stat b{font-size:34px;}
  .check-grid{grid-template-columns:1fr;}
  .toc ol{grid-template-columns:1fr;}
  .cta-inner h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .spec-figure{margin-bottom:26px;}
}
@media (max-width:419px){
  .page-banner h1{font-size:27px;}
  h2{font-size:23px;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%;}
  .check-card{box-shadow:none;}
  .toc{box-shadow:none;}
  .stats-grid{grid-template-columns:1fr;}
  .stat{padding:0;}
  .stat + .stat{border-left:none;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;}
}

/* roulang page: category2 */
:root{
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --band-dark:#0F1A17;
  --brand-700:#0E4F45;
  --brand-600:#14655A;
  --brand-50:#DCEAE4;
  --accent-600:#C07B33;
  --accent-700:#A9682A;
  --accent-50:#F6E7D2;
  --line:#E2DED4;
  --text:#1B2320;
  --muted:#5E6A64;
  --ok:#2E7D5B;
  --warn:#B4562F;
  --soft:#EFF2EC;
  --shadow-1:0 1px 2px rgba(15,26,23,.05),0 8px 24px -12px rgba(15,26,23,.12);
  --shadow-2:0 2px 4px rgba(15,26,23,.06),0 20px 48px -20px rgba(15,26,23,.20);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.3em}
p:last-child{margin-bottom:0}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent-700)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--accent-600);
  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}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.08em;
  font-weight:600;
  color:var(--brand-700);
  background:var(--brand-50);
  border-radius:999px;
  padding:5px 12px;
}
.eyebrow--accent{background:var(--accent-50);color:var(--accent-700)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:34px;margin-bottom:18px}
.section-head p{color:var(--muted);font-size:16.5px;margin:0}
.lede{color:var(--muted)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  background:rgba(247,245,239,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(15,26,23,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 30px -26px rgba(15,26,23,.45);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{
  background:rgba(247,245,239,.94);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 2px 4px rgba(15,26,23,.06),0 16px 34px -24px rgba(15,26,23,.4);
}
.header-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
  transition:height .25s var(--ease);
}
.site-header.scrolled .header-inner{height:64px}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  font-size:16.5px;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo:hover{color:var(--text)}
.logo-mark{
  width:12px;height:12px;
  border-radius:3px;
  background:var(--accent-600);
  box-shadow:0 0 0 4px rgba(192,123,51,.14);
  flex:none;
}
.logo-text b{color:var(--brand-700);font-weight:700}
.logo-text span{color:var(--muted);font-weight:500}
.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
}
.main-nav a{
  position:relative;
  display:block;
  padding:9px 13px;
  font-size:15px;
  color:var(--muted);
  border-radius:8px;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav a:hover{color:var(--brand-700);background:rgba(220,234,228,.6)}
.main-nav a.active{color:var(--brand-700);font-weight:600}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent-600);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid transparent;
  border-radius:10px;
  background:transparent;
  color:var(--brand-700);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{background:var(--brand-50);border-color:rgba(14,79,69,.12);transform:translateY(-1px)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{
  background:var(--accent-600);
  color:#fff;
  border-color:var(--accent-600);
  box-shadow:0 10px 22px -14px rgba(192,123,51,.85);
}
.btn-primary:hover{
  background:var(--accent-700);
  border-color:var(--accent-700);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 16px 30px -16px rgba(169,104,42,.9);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:var(--brand-700);
  border-color:var(--brand-600);
}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700)}
.btn-light{
  background:#fff;
  color:var(--brand-700);
  border-color:#fff;
}
.btn-light:hover{background:var(--accent-50);border-color:var(--accent-50);color:var(--accent-700)}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.8)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid rgba(15,26,23,.12);
  background:rgba(255,255,255,.7);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--brand-700);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 页首横幅 ---------- */
.page-hero{
  position:relative;
  padding:152px 0 76px;
  color:#fff;
  background-image:linear-gradient(102deg,rgba(15,26,23,.86) 0%,rgba(15,26,23,.72) 52%,rgba(15,26,23,.52) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.7);
  margin-bottom:26px;
}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:var(--accent-50)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.page-hero .eyebrow{
  background:rgba(220,234,228,.16);
  color:#E9F3EE;
  border:1px solid rgba(220,234,228,.28);
}
.page-hero h1{
  font-size:46px;
  line-height:1.22;
  margin:20px 0 20px;
  max-width:900px;
  color:#fff;
}
.page-hero .hero-lede{
  max-width:660px;
  font-size:17px;
  color:rgba(255,255,255,.82);
  margin:0;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.hero-meta span{
  font-size:13px;
  color:rgba(255,255,255,.86);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);
  border-radius:999px;
  padding:6px 14px;
}

/* ---------- 说明带 ---------- */
.intro-band{
  background:var(--brand-50);
  border-top:1px solid rgba(14,79,69,.08);
  border-bottom:1px solid rgba(14,79,69,.08);
  padding:64px 0;
}
.intro-band-inner{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:start;
}
.intro-band h2{font-size:28px;color:var(--brand-700);margin:16px 0 16px;letter-spacing:-.01em}
.intro-band p{color:#254A42;font-size:16px;margin:0 0 1.1em}
.intro-band p:last-of-type{margin-bottom:0}
.band-stats{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
}
.band-stat{
  background:rgba(255,255,255,.72);
  border:1px solid rgba(14,79,69,.12);
  border-radius:14px;
  padding:18px 20px;
}
.band-stat b{
  display:block;
  font-size:30px;
  line-height:1.2;
  color:var(--brand-700);
  letter-spacing:-.02em;
  margin-bottom:4px;
}
.band-stat span{font-size:14px;color:#3C5A52;line-height:1.6;display:block}

/* ---------- 能力卡片 ---------- */
.cap-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.cap-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 30px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.cap-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:rgba(14,79,69,.22);
}
.cap-icon{
  width:46px;height:46px;
  border-radius:12px;
  background:var(--brand-50);
  color:var(--brand-700);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:20px;
}
.cap-card h3{
  font-size:21px;
  margin-bottom:12px;
  color:var(--text);
}
.cap-card > p{
  color:var(--muted);
  font-size:15px;
  line-height:1.75;
  margin:0 0 18px;
}
.tick-list{display:grid;gap:10px}
.tick-list li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  color:#3A4642;
  line-height:1.7;
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--brand-600);
}
.tag{
  display:inline-block;
  font-size:12.5px;
  line-height:1.5;
  color:var(--brand-700);
  background:var(--brand-50);
  border-radius:999px;
  padding:4px 10px;
  margin-bottom:14px;
}
.tag--accent{background:var(--accent-50);color:var(--accent-700)}

/* ---------- 场景矩阵表 ---------- */
.table-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow-x:auto;
}
table.spec{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
  font-size:14.5px;
}
table.spec caption{
  text-align:left;
  padding:22px 26px 4px;
  font-size:13px;
  color:var(--muted);
}
table.spec th{
  text-align:left;
  font-weight:600;
  font-size:13.5px;
  color:var(--brand-700);
  background:var(--soft);
  padding:15px 22px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.spec td{
  padding:16px 22px;
  border-bottom:1px solid #EFECE4;
  color:#33403B;
  vertical-align:top;
  line-height:1.7;
}
table.spec tbody tr:last-child td{border-bottom:none}
table.spec tbody tr:hover td{background:#FAF9F4}
table.spec td:first-child{font-weight:600;color:var(--text)}
.table-note{
  margin-top:16px;
  font-size:13px;
  color:var(--muted);
}

/* ---------- 图文分栏 ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:64px;
  align-items:center;
}
.split h2{font-size:32px;margin-bottom:18px}
.split > div > p{color:var(--muted);font-size:16px}
.fit-list{display:grid;gap:16px;margin-top:26px}
.fit-list li{
  display:grid;
  grid-template-columns:26px 1fr;
  gap:12px;
  font-size:15px;
  color:#33403B;
  line-height:1.75;
}
.fit-list .num{
  display:flex;
  align-items:center;
  justify-content:center;
  width:26px;height:26px;
  margin-top:3px;
  border-radius:8px;
  background:var(--brand-50);
  color:var(--brand-700);
  font-size:12.5px;
  font-weight:700;
}
.figure{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  border:1px solid var(--line);
  background:var(--surface);
}
.figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
.figure figcaption{
  padding:14px 18px;
  font-size:13px;
  color:var(--muted);
  background:var(--surface);
  border-top:1px solid var(--line);
}

/* ---------- 问答卡 ---------- */
.qa-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.qa-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--brand-600);
  border-radius:14px;
  padding:26px 28px;
  box-shadow:var(--shadow-1);
  transition:border-left-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.qa-card:hover{
  border-left-color:var(--accent-600);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.qa-card h3{font-size:17px;margin-bottom:10px}
.qa-card p{font-size:14.5px;color:var(--muted);line-height:1.78;margin:0}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--band-dark);
  color:#fff;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(192,123,51,.22),rgba(192,123,51,0) 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto;
  gap:44px;
  align-items:center;
}
.cta-inner h2{font-size:30px;margin-bottom:14px;color:#fff}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15.5px;margin:0;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--band-dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:48px;
}
.site-footer .logo{color:#fff;margin-bottom:18px}
.site-footer .logo:hover{color:#fff}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:rgba(255,255,255,.7)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0 0 20px;max-width:340px}
.footer-contact{display:grid;gap:8px;font-size:13.5px;color:rgba(255,255,255,.6)}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600}
.footer-col h4{
  font-size:14px;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px}
.footer-col a:hover{color:var(--accent-600)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.footer-bottom .links a{color:rgba(255,255,255,.6)}
.footer-bottom .links a:hover{color:var(--accent-600)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:42px}
  .split{gap:48px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:76px 0}
  .section--tight{padding:60px 0}
  .header-inner{padding:0 24px;gap:16px}
  .main-nav{
    position:fixed;
    inset:0;
    z-index:80;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    margin:0;
    padding:96px 24px 120px;
    background:var(--paper);
    overflow-y:auto;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{
    font-size:17px;
    padding:14px 16px;
    border-radius:12px;
    border-bottom:1px solid var(--line);
    color:var(--text);
  }
  .main-nav a.active{background:var(--brand-50)}
  .main-nav a.active::after{display:none}
  .nav-toggle{display:inline-flex;order:3}
  .header-actions{order:2;margin-left:auto}
  .header-actions .btn{display:none}
  .page-hero{padding:130px 0 64px}
  .page-hero h1{font-size:36px}
  .intro-band-inner{grid-template-columns:1fr;gap:32px}
  .band-stats{grid-template-columns:repeat(3,1fr)}
  .cap-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .split{grid-template-columns:1fr;gap:36px}
  .split .figure{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:26px}
  .page-hero{padding:120px 0 56px}
  .page-hero h1{font-size:30px;line-height:1.26}
  .page-hero .hero-lede{font-size:15.5px}
  .breadcrumb{font-size:12.5px;flex-wrap:wrap;margin-bottom:20px}
  .cap-grid{grid-template-columns:1fr}
  .qa-grid{grid-template-columns:1fr}
  .band-stats{grid-template-columns:1fr}
  .cap-card{padding:24px 22px}
  .intro-band{padding:48px 0}
  .intro-band h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding-top:56px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-inner h2{font-size:24px}
  .split h2{font-size:26px}
}
@media (max-width:519px){
  .container{padding:0 18px}
  .header-inner{padding:0 18px;height:64px;gap:10px}
  .logo{font-size:15px}
  .logo-text span{display:none}
  .page-hero h1{font-size:28px}
  .hero-meta span{font-size:12px;padding:5px 11px}
  .cap-card{box-shadow:none;border-color:#DAD5C9}
  .qa-card{box-shadow:none;padding:22px 20px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .header-actions .icon-btn{width:36px;height:36px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --band-dark:#0F1A17;
  --brand-700:#0E4F45;
  --brand-600:#14655A;
  --brand-50:#DCEAE4;
  --accent-600:#C07B33;
  --accent-700:#A9682A;
  --accent-50:#F6E7D2;
  --line:#E2DED4;
  --text:#1B2320;
  --muted:#5E6A64;
  --ok:#2E7D5B;
  --warn:#B4562F;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.05),0 8px 24px -12px rgba(15,26,23,.12);
  --shadow-2:0 2px 4px rgba(15,26,23,.06),0 20px 48px -20px rgba(15,26,23,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent-700)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:1rem}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(247,245,239,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(15,26,23,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 30px -24px rgba(15,26,23,.4);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(247,245,239,.94);box-shadow:0 12px 34px -22px rgba(15,26,23,.42)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .24s var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:16px;height:16px;border-radius:4px;background:var(--accent-600);box-shadow:0 0 0 4px var(--accent-50)}
.logo-text{font-size:17px;color:var(--text);letter-spacing:.01em;white-space:nowrap}
.logo-text b{font-weight:700;color:var(--brand-700)}
.logo-text span{color:var(--muted);font-size:14.5px}

.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;color:var(--text);padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent-600);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.main-nav a:hover{color:var(--brand-700)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--brand-700);font-weight:600}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:10px;
  border:1px solid rgba(15,26,23,.12);background:rgba(255,255,255,.55);color:var(--brand-700);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{background:var(--brand-50);border-color:var(--brand-600);transform:translateY(-1px)}
.icon-btn svg{width:17px;height:17px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;padding:14px 22px;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:0 8px 20px -14px rgba(192,123,51,.9)}
.btn-primary:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);background:var(--accent-700)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
.btn-light{background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:11px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid rgba(15,26,23,.12);
  background:rgba(255,255,255,.6);padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);border-radius:2px;transition:transform .2s var(--ease)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:22px 18px 26px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand-700);font-size:18px;line-height:1;
}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 4px;font-size:16.5px;color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--brand-700);font-weight:600}
.drawer-links a::after{content:"›";color:var(--muted);font-size:18px}
.drawer-foot{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn{width:100%}
.drawer-foot p{font-size:13.5px;color:var(--muted)}

/* ---------- banner ---------- */
.page-banner{
  position:relative;isolation:isolate;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center 40%;
  padding-top:72px;
}
.page-banner::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(15,26,23,.92) 0%,rgba(14,79,69,.86) 55%,rgba(15,26,23,.78) 100%);
}
.page-banner::after{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.04;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:26px 26px;
}
.banner-inner{min-height:268px;display:flex;flex-direction:column;justify-content:flex-end;padding:36px 0 34px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;flex-wrap:wrap}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--muted);opacity:.7}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent-600)}
.page-banner .breadcrumb,.page-banner .breadcrumb a,.page-banner .breadcrumb li+li::before{color:rgba(255,255,255,.72)}
.page-banner .breadcrumb a:hover{color:#fff}
.page-banner .breadcrumb li:last-child{color:#fff}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.12em;
  color:rgba(255,255,255,.86);text-transform:uppercase;margin-bottom:14px;
}
.banner-tag::before{content:"";width:22px;height:1px;background:var(--accent-600)}
.page-banner h1{
  color:#fff;font-size:46px;line-height:1.22;font-weight:700;letter-spacing:-.01em;
  margin-top:0;margin-bottom:16px;max-width:20em;
}
.banner-lead{color:rgba(255,255,255,.82);font-size:17px;line-height:1.8;max-width:56em;margin-bottom:24px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:34px;line-height:1.28;margin-top:0;margin-bottom:14px;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:16.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;color:var(--brand-600);
  text-transform:uppercase;font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent-600);border-radius:2px}

/* overview strip */
.overview{background:var(--surface);border-bottom:1px solid var(--line)}
.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.overview-item{padding:38px 28px;border-left:1px solid var(--line)}
.overview-item:first-child{border-left:none;padding-left:0}
.overview-num{font-size:40px;font-weight:700;line-height:1.1;color:var(--brand-700);letter-spacing:-.02em}
.overview-num em{font-style:normal;font-size:19px;color:var(--accent-600);margin-left:2px}
.overview-item p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7}

/* steps */
.steps{position:relative;display:flex;flex-direction:column;gap:0}
.step{display:grid;grid-template-columns:66px minmax(0,1fr);gap:0}
.step-rail{position:relative;display:flex;justify-content:flex-start;padding-top:6px}
.step-rail::before{
  content:"";position:absolute;left:17px;top:46px;bottom:-8px;width:1px;background:var(--line);
}
.step:last-child .step-rail::before{background:linear-gradient(to bottom,var(--line),transparent 85%)}
.step-index{
  position:relative;z-index:1;width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;font-size:14.5px;font-weight:700;
  background:var(--surface);color:var(--brand-700);border:1px solid var(--line);
  box-shadow:var(--shadow-1);transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.step:hover .step-index{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.step-body{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:36px;align-items:center;padding:0 0 56px 0;
}
.step:nth-child(even) .step-media{order:2}
.step-text h3{font-size:23px;line-height:1.35;margin-top:0;margin-bottom:12px}
.step-text>p{color:var(--muted);font-size:16px;margin-bottom:18px}
.step-label{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--accent-700);
  background:var(--accent-50);border-radius:999px;padding:4px 11px;margin-bottom:12px;
}
.tick-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--text);line-height:1.75;margin-bottom:8px;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:12px;height:7px;
  border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg);
}
.step-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);background:var(--surface);
}
.step-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.step-media:hover img{transform:scale(1.03)}

/* access cards */
.access-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.access-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.access-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.access-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-50)}
.access-card h3{font-size:19px;line-height:1.4}
.access-card p{font-size:14.6px;color:var(--muted);line-height:1.8}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand-700);
  background:var(--brand-50);border-radius:999px;padding:4px 10px;
}
.tag-accent{color:var(--accent-700);background:var(--accent-50)}
.access-card .text-link{margin-top:auto}
.text-link{
  display:inline-block;font-size:14.5px;font-weight:600;color:var(--brand-700);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.text-link:hover{color:var(--accent-600)}

/* checklist */
.check-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px 40px}
.check-item{
  display:flex;gap:14px;padding:20px 0;border-bottom:1px dashed var(--line);
}
.check-item .dot{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-50);
  color:var(--brand-700);display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:2px;
}
.check-item h4{font-size:16.5px;margin-bottom:4px}
.check-item p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* faq */
.faq{background:var(--paper)}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:110px}
.faq-aside h2{font-size:32px;line-height:1.3;margin-top:0;margin-bottom:14px}
.faq-aside p{color:var(--muted);font-size:15.5px;margin-bottom:20px}
.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:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item:hover{border-color:var(--brand-50);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:none;text-align:left;padding:20px 22px;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q .chev{flex:0 0 auto;width:22px;height:22px;display:grid;place-items:center;color:var(--brand-600);transition:transform .25s var(--ease)}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.85}
.faq-item.is-open{border-color:var(--brand-50);box-shadow:var(--shadow-1)}

/* cta band */
.cta-band{background:var(--band-dark);color:#fff;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,123,51,.24),transparent 68%);
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:center;padding:72px 0;position:relative;z-index:1}
.cta-inner h2{color:#fff;font-size:32px;line-height:1.3;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.76);font-size:16px;max-width:36em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.55)}

/* footer */
.site-footer{background:var(--band-dark);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:rgba(255,255,255,.62)}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:34em}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:18px;font-size:14px;color:rgba(255,255,255,.6)}
.footer-contact b{color:rgba(255,255,255,.88);font-weight:600}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--accent-600)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--accent-600)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .overview-num{font-size:34px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav,.header-actions .icon-btn,.header-actions .btn{display:none}
  .nav-toggle{display:grid}
  .header-actions{margin-left:auto}
  .page-banner h1{font-size:36px}
  .section{padding:72px 0}
  .overview-grid{grid-template-columns:repeat(2,1fr)}
  .overview-item{padding:30px 22px;border-left:1px solid var(--line)}
  .overview-item:nth-child(odd){border-left:none;padding-left:0}
  .overview-item:nth-child(1),.overview-item:nth-child(2){border-bottom:1px solid var(--line)}
  .step-body{grid-template-columns:1fr;gap:22px;padding-bottom:44px}
  .step:nth-child(even) .step-media{order:0}
  .access-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-wrap{grid-template-columns:1fr;gap:0}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-inner{grid-template-columns:1fr;gap:26px;padding:56px 0}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .page-banner{padding-top:64px}
  .header-inner{height:64px}
  .banner-inner{min-height:236px;padding:28px 0 28px}
  .page-banner h1{font-size:31px}
  .banner-lead{font-size:15.5px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .section-head{margin-bottom:30px}
  .section-head h2{font-size:26px}
  .overview-grid{grid-template-columns:1fr}
  .overview-item{padding:22px 0;border-left:none;border-bottom:1px solid var(--line)}
  .overview-item:last-child{border-bottom:none}
  .step{grid-template-columns:46px minmax(0,1fr)}
  .step-rail::before{left:14px;top:40px}
  .step-index{width:30px;height:30px;font-size:13px}
  .step-text h3{font-size:20px}
  .access-grid{grid-template-columns:1fr}
  .faq-aside h2{font-size:26px}
  .faq-q{font-size:15.5px;padding:17px 18px}
  .faq-a p{padding:0 18px 18px}
  .cta-inner h2{font-size:25px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:419px){
  .page-banner h1{font-size:27px}
  .banner-actions .btn{width:100%}
  .access-card{padding:20px 18px}
  .step-media{box-shadow:none}
  .btn{padding:13px 18px}
}

/* roulang page: category4 */
:root{
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --band-dark:#0F1A17;
  --brand-700:#0E4F45;
  --brand-600:#14655A;
  --brand-50:#DCEAE4;
  --accent-600:#C07B33;
  --accent-700:#A9682A;
  --accent-50:#F6E7D2;
  --line:#E2DED4;
  --text:#1B2320;
  --muted:#5E6A64;
  --ok:#2E7D5B;
  --warn:#B4562F;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,26,23,.05),0 8px 24px -12px rgba(15,26,23,.12);
  --shadow-2:0 2px 4px rgba(15,26,23,.06),0 20px 48px -20px rgba(15,26,23,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --pad-x:32px;
  --section-y:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-700);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--accent-700)}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--pad-x)}
.section{padding:var(--section-y) 0}
.section-tight{padding:72px 0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(247,245,239,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(15,26,23,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 30px -24px rgba(15,26,23,.5);
  transition:background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(247,245,239,.95);box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 14px 34px -22px rgba(15,26,23,.45)}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 var(--pad-x);
  height:72px;display:flex;align-items:center;gap:20px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);font-weight:700;font-size:17px;letter-spacing:-.01em}
.logo:hover{color:var(--brand-700)}
.logo-mark{width:12px;height:12px;border-radius:3px;background:var(--accent-600);box-shadow:0 0 0 3px rgba(192,123,51,.16);flex:0 0 auto}
.logo-text{display:inline-flex;align-items:baseline;gap:2px;white-space:nowrap}
.logo-text b{font-weight:700;color:var(--brand-700)}
.logo-text span{font-weight:600;color:var(--text);font-size:15px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav a{
  position:relative;padding:9px 12px;border-radius:8px;
  font-size:14.5px;color:var(--muted);font-weight:500;white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.main-nav a:hover{color:var(--brand-700);background:rgba(220,234,228,.6)}
.main-nav a.active{color:var(--brand-700);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent-600);border-radius:2px;
}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-700);border:1px solid transparent;background:rgba(255,255,255,.6);
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.icon-btn:hover{background:#fff;border-color:var(--line);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px}
.nav-toggle{display:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.4;white-space:nowrap;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:0 6px 18px -10px rgba(192,123,51,.9)}
.btn-primary:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-700);border-color:transparent;box-shadow:var(--shadow-1)}
.btn-light:hover{background:var(--accent-50);color:var(--accent-700);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px;border-bottom:1px solid rgba(14,79,69,.35);padding-bottom:2px;text-underline-offset:4px}
.btn-link:hover{color:var(--accent-700);border-color:rgba(169,104,42,.5)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:130;background:var(--paper);
  transform:translateY(-102%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:84px 22px 28px;overflow-y:auto;
}
.nav-drawer.open{transform:translateY(0)}
.nav-drawer .drawer-close{position:absolute;top:18px;right:20px;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700)}
.nav-drawer .drawer-label{font-size:12.5px;letter-spacing:.14em;color:var(--muted);margin-bottom:14px;text-transform:uppercase}
.nav-drawer a.drawer-link{
  display:block;padding:15px 4px;font-size:18px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.drawer-link.active{color:var(--brand-700)}
.nav-drawer a.drawer-link:hover{color:var(--accent-700)}
.drawer-foot{margin-top:auto;padding-top:28px;display:grid;gap:12px}
.drawer-foot .drawer-note{font-size:13.5px;color:var(--muted)}

/* ---------- 页首横幅 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--band-dark);color:#fff;padding:150px 0 62px}
.page-hero-media{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5}
.page-hero::after{content:"";position:absolute;inset:0;background:rgba(13,32,28,.82)}
.page-hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:rgba(220,234,228,.16);color:#DCEAE4;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-600)}
.page-hero h1{
  font-size:clamp(30px,4.2vw,48px);line-height:1.22;letter-spacing:-.01em;font-weight:700;
  color:#fff;margin:0 0 18px;
}
.page-hero h1 em{font-style:normal;color:#EBC58C}
.page-hero .lead{font-size:17.5px;line-height:1.85;color:rgba(255,255,255,.8);max-width:660px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.88);font-size:13px;
}

/* ---------- 通用标题 ---------- */
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{
  font-size:clamp(25px,2.6vw,34px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
  margin-top:0;margin-bottom:14px;color:var(--text);
}
.section-head h2::before{
  content:"";display:block;width:44px;height:3px;border-radius:2px;
  background:var(--accent-600);margin-bottom:18px;
}
.section-head.center h2::before{margin-left:auto;margin-right:auto}
.section-head p{color:var(--muted);font-size:16.5px;line-height:1.85}

/* ---------- 行业标签行 ---------- */
.industry-strip{background:var(--brand-50);border-top:1px solid rgba(14,79,69,.08);border-bottom:1px solid rgba(14,79,69,.08);padding:34px 0}
.industry-strip .strip-label{font-size:12.5px;letter-spacing:.14em;color:var(--brand-700);font-weight:600;margin-bottom:16px}
.industry-tabs{display:flex;flex-wrap:wrap;gap:10px}
.industry-tabs span{
  padding:8px 17px;border-radius:var(--radius-pill);background:rgba(255,255,255,.86);
  border:1px solid rgba(14,79,69,.14);font-size:14px;color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.industry-tabs span:hover{background:#fff;color:var(--brand-700);border-color:rgba(14,79,69,.3)}
.industry-tabs span.is-on{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;box-shadow:0 8px 18px -12px rgba(14,79,69,.9)}

/* ---------- 场景交错卡片 ---------- */
.scenario-list{display:flex;flex-direction:column;gap:34px}
.scenario{
  display:grid;grid-template-columns:1.02fr 1fr;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--surface);overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.scenario:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:rgba(14,79,69,.18)}
.scenario:nth-child(even) .scenario-media{order:2}
.scenario-media{position:relative;background:var(--band-dark);min-height:100%}
.scenario-media img{width:100%;height:100%;object-fit:cover;min-height:330px;filter:saturate(.92)}
.scenario-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,26,23,0) 45%,rgba(15,26,23,.42));pointer-events:none}
.scenario-tag{
  position:absolute;left:18px;top:18px;z-index:2;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(15,26,23,.72);color:#F3EFE4;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.scenario-body{padding:44px 46px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.scenario.tall .scenario-body{padding:56px 46px}
.scenario.tall .scenario-media img{min-height:420px}
.scenario-body h3{font-size:22px;line-height:1.4;font-weight:700;letter-spacing:-.01em;color:var(--text);margin:0}
.scenario-body h3 span{color:var(--brand-700)}
.scenario-body .desc{color:var(--muted);font-size:15.5px;line-height:1.85}
.points{display:grid;gap:10px}
.points li{position:relative;padding-left:22px;font-size:15px;line-height:1.72;color:var(--muted)}
.points li::before{
  content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:2px;
  background:var(--brand-50);border:1.5px solid var(--brand-600);
}
.points li b{color:var(--text);font-weight:600}
.scenario-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
.mini-stat{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:var(--accent-50);color:var(--accent-700);font-size:13px;font-weight:600;
}
.mini-stat i{font-style:normal;font-size:16px;font-weight:700}

/* ---------- 深色数据带 ---------- */
.band-dark{background:var(--band-dark);color:#fff;padding:82px 0}
.band-dark .band-head{max-width:720px;margin-bottom:46px}
.band-dark .band-head h2{font-size:clamp(24px,2.4vw,32px);line-height:1.3;font-weight:700;color:#fff;margin-bottom:12px}
.band-dark .band-head p{color:rgba(255,255,255,.66);font-size:15.5px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-item{padding:6px 28px;border-left:1px solid rgba(255,255,255,.12)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:clamp(34px,3.6vw,46px);line-height:1.1;font-weight:700;color:var(--accent-600);letter-spacing:-.02em}
.stat-num small{font-size:16px;font-weight:600;color:rgba(255,255,255,.6);margin-left:6px;letter-spacing:0}
.stat-label{margin-top:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72)}

/* ---------- 判断清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,79,69,.2)}
.check-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;background:var(--brand-50);color:var(--brand-700);
  font-size:14px;font-weight:700;margin-bottom:16px;
}
.check-card h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px}
.check-card p{font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-aside h2{font-size:clamp(24px,2.4vw,32px);line-height:1.3;font-weight:700;margin-bottom:14px}
.faq-aside h2::before{content:"";display:block;width:44px;height:3px;border-radius:2px;background:var(--accent-600);margin-bottom:18px}
.faq-aside p{color:var(--muted);font-size:15.5px;line-height:1.85;margin-bottom:22px}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(14,79,69,.2)}
.faq-item[open]{border-color:rgba(14,79,69,.28);box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-700);
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.faq-icon svg{width:13px;height:13px}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--accent-50);color:var(--accent-700)}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15.5px;line-height:1.88}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--brand-700),var(--brand-600));
  border-radius:var(--radius-lg);color:#fff;padding:56px 56px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-2);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-band h2{font-size:clamp(23px,2.3vw,30px);line-height:1.35;font-weight:700;margin-bottom:12px;position:relative}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;line-height:1.85;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6);text-align:right}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--band-dark);color:rgba(255,255,255,.7);padding:76px 0 28px;margin-top:var(--section-y)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text b,.footer-brand .logo-text span{color:#fff}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px}
.footer-contact{margin-top:20px;display:grid;gap:8px;font-size:13.5px;color:rgba(255,255,255,.56)}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px}
.footer-col a:hover{color:var(--accent-600)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.footer-bottom a{color:rgba(255,255,255,.62);font-size:13px}
.footer-bottom a:hover{color:var(--accent-600)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--container:1120px;--pad-x:26px;--section-y:88px}
  .header-inner{gap:14px}
  .main-nav a{padding:9px 9px;font-size:13.8px}
}
@media (max-width:1023px){
  :root{--pad-x:24px;--section-y:76px}
  .main-nav,.nav-tools .btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:66px}
  .site-header.is-scrolled .header-inner{height:60px}
  .page-hero{padding:128px 0 52px}
  .scenario{grid-template-columns:1fr}
  .scenario:nth-child(even) .scenario-media{order:0}
  .scenario-media img,.scenario.tall .scenario-media img{min-height:280px;max-height:320px}
  .scenario-body,.scenario.tall .scenario-body{padding:32px 30px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .stat-item{padding:0 24px}
  .stat-item:nth-child(odd){border-left:0;padding-left:0}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-band{grid-template-columns:1fr;padding:44px 36px;gap:26px}
  .cta-actions{justify-content:flex-start}
  .cta-note{text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  :root{--pad-x:18px;--section-y:60px}
  body{font-size:16px}
  .logo{font-size:16px}
  .logo-text span{font-size:13.5px}
  .page-hero{padding:116px 0 44px}
  .page-hero .lead{font-size:16px}
  .scenario-body,.scenario.tall .scenario-body{padding:26px 22px}
  .scenario-body h3{font-size:19.5px}
  .check-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr;gap:26px}
  .stat-item{padding:0;border-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:22px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .band-dark{padding:60px 0}
  .faq-item summary{padding:17px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px;font-size:15px}
  .cta-band{padding:34px 24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .industry-strip{padding:26px 0}
}
@media (max-width:419px){
  .page-hero h1{font-size:28px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .check-card{box-shadow:none;border-color:var(--line)}
  .scenario{box-shadow:none}
  .scenario-media img{min-height:210px}
  .industry-tabs span{font-size:13px;padding:7px 13px}
}

/* roulang page: category5 */
/* ============ 设计变量 ============ */
:root{
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --band-dark:#0F1A17;
  --brand-700:#0E4F45;
  --brand-600:#14655A;
  --brand-50:#DCEAE4;
  --accent-600:#C07B33;
  --accent-700:#A9682A;
  --accent-50:#F6E7D2;
  --line:#E2DED4;
  --text:#1B2320;
  --muted:#5E6A64;
  --ok:#2E7D5B;
  --warn:#B4562F;
  --soft:#EFF2EC;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.05),0 8px 24px -12px rgba(15,26,23,.12);
  --shadow-2:0 2px 4px rgba(15,26,23,.06),0 20px 48px -20px rgba(15,26,23,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--accent-600);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1.5px solid transparent;text-decoration:none;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent-600);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;transform:none;pointer-events:none;}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-700);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.link-more:hover{color:var(--accent-600);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 10px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);
  font-size:12.5px;font-weight:600;line-height:1.6;letter-spacing:.01em;
}
.badge-accent{background:var(--accent-50);color:var(--accent-700);}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.72);
  color:var(--muted);font-size:13px;font-weight:500;line-height:1.5;
  transition:all .18s var(--ease);
}
.tag:hover{border-color:var(--brand-600);color:var(--brand-700);background:#fff;transform:translateY(-1px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:72px;
  background:rgba(247,245,239,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(15,26,23,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55),0 6px 22px -16px rgba(15,26,23,.36);
  transition:height .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  height:64px;background:rgba(247,245,239,.95);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 10px 30px -18px rgba(15,26,23,.45);
}
.header-inner{display:flex;align-items:center;gap:22px;height:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--text);flex-shrink:0;}
.logo-mark{width:14px;height:14px;border-radius:4px;background:linear-gradient(135deg,var(--accent-600),var(--accent-700));box-shadow:0 0 0 3px rgba(192,123,51,.16);flex-shrink:0;}
.logo-text{display:inline-flex;align-items:baseline;gap:0;white-space:nowrap;}
.logo-text b{color:var(--brand-700);font-weight:700;}
.logo-text span{color:var(--muted);font-weight:600;font-size:15px;}
.logo:hover .logo-text b{color:var(--accent-600);}

.main-nav{margin-left:auto;display:flex;align-items:center;gap:24px;}
.main-nav a{
  position:relative;padding:6px 0;font-size:15px;font-weight:600;
  color:var(--text);white-space:nowrap;transition:color .18s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:var(--accent-600);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.main-nav a:hover{color:var(--brand-700);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--brand-700);}
.main-nav a.active::after{transform:scaleX(1);}

.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid transparent;background:transparent;color:var(--brand-700);
  transition:all .18s var(--ease);
}
.icon-btn:hover{background:rgba(220,234,228,.72);border-color:var(--line);color:var(--accent-600);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  align-items:center;justify-content:center;color:var(--brand-700);
}
.nav-toggle:hover{background:var(--brand-50);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:72px 0 0 0;z-index:110;
  background:var(--paper);padding:24px 18px 100px;
  overflow-y:auto;transform:translateY(-8px);
  opacity:0;visibility:hidden;transition:all .24s var(--ease);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer .drawer-title{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.12em;margin:0 0 10px;}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;margin-bottom:8px;border-radius:12px;
  background:#fff;border:1px solid var(--line);color:var(--text);
  font-size:15.5px;font-weight:600;box-shadow:var(--shadow-1);
}
.mobile-drawer a.drawer-link.active{background:var(--brand-50);border-color:var(--brand-600);color:var(--brand-700);}
.mobile-drawer a.drawer-link:hover{border-color:var(--brand-600);color:var(--brand-700);}
.drawer-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
.drawer-foot p{font-size:13.5px;color:var(--muted);margin-bottom:12px;}

/* ============ 页首横幅 ============ */
.page-banner{
  position:relative;margin-top:0;padding:150px 0 64px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,26,23,.92) 0%,rgba(14,79,69,.86) 52%,rgba(15,26,23,.78) 100%);
}
.page-banner::after{
  content:"";position:absolute;inset:0;opacity:.045;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:38px 38px;
}
.banner-inner{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:var(--accent-50);}
.breadcrumb .sep{color:rgba(255,255,255,.42);}
.breadcrumb .current{color:#fff;font-weight:600;}
.banner-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;background:rgba(246,231,210,.16);border:1px solid rgba(246,231,210,.34);color:var(--accent-50);font-size:12.5px;font-weight:600;letter-spacing:.06em;margin-bottom:18px;}
.banner-inner h1{
  font-size:46px;line-height:1.22;font-weight:700;letter-spacing:-.01em;
  margin:0 0 18px;max-width:15em;color:#fff;
}
.banner-inner h1 em{font-style:normal;color:var(--accent-50);}
.banner-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:46em;margin-bottom:30px;}

/* 搜索框（视觉入口） */
.support-search{
  display:flex;gap:10px;align-items:center;max-width:660px;
  padding:8px;border-radius:14px;
  background:rgba(255,255,255,.94);
  box-shadow:0 18px 44px -24px rgba(0,0,0,.6);
  border:1px solid rgba(255,255,255,.7);
}
.support-search .search-icon{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;color:var(--brand-700);flex-shrink:0;}
.support-search input[type="search"]{
  flex:1;height:44px;border:none;background:transparent;
  font-size:15px;color:var(--text);padding:0 6px;outline:none;min-width:0;
}
.support-search input[type="search"]::placeholder{color:#8B958F;}
.support-search .btn{height:44px;flex-shrink:0;}
.hot-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;}
.hot-tags .label{font-size:13px;color:rgba(255,255,255,.6);margin-right:2px;}
.hot-tags .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22);color:rgba(255,255,255,.86);}
.hot-tags .tag:hover{background:rgba(246,231,210,.2);border-color:rgba(246,231,210,.5);color:#fff;transform:translateY(-1px);}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--soft);}
.section-head{max-width:760px;margin:0 0 48px;}
.section-head .kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--accent-700);margin-bottom:12px;}
.section-title{font-size:33px;line-height:1.28;font-weight:700;letter-spacing:-.01em;margin:0 0 14px;}
.section-sub{font-size:16px;color:var(--muted);line-height:1.85;max-width:44em;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap;}
.section-head-row .section-head{margin-bottom:0;}

/* ============ 资源下载卡片 ============ */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.res-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.res-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C7DCD3;}
.res-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-50);}
.res-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.res-card:hover .res-thumb img{transform:scale(1.04);}
.res-thumb .thumb-badge{position:absolute;top:12px;left:12px;}
.res-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px;}
.res-body h3{font-size:20px;line-height:1.42;font-weight:600;letter-spacing:-.005em;}
.res-body p{font-size:14.5px;line-height:1.78;color:var(--muted);}
.res-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}
.res-meta .file{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-700);}

/* ============ 支持范围说明带 ============ */
.support-band{
  background:var(--band-dark);color:#fff;border-radius:20px;
  padding:48px 44px;position:relative;overflow:hidden;
}
.support-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,123,51,.18),transparent 68%);
}
.support-band h2{font-size:27px;line-height:1.32;font-weight:700;margin-bottom:14px;position:relative;z-index:2;}
.support-band .band-lead{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.74);max-width:52em;margin-bottom:34px;position:relative;z-index:2;}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;z-index:2;}
.band-item{padding:0 24px;border-left:1px solid rgba(255,255,255,.12);}
.band-item:first-child{border-left:none;padding-left:0;}
.band-item .num{font-size:40px;line-height:1.1;font-weight:700;color:var(--accent-50);letter-spacing:-.02em;}
.band-item .num small{font-size:17px;font-weight:600;margin-left:2px;color:rgba(246,231,210,.72);}
.band-item .desc{margin-top:10px;font-size:13.5px;line-height:1.72;color:rgba(255,255,255,.7);}

/* ============ 分组 FAQ ============ */
.faq-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start;}
.faq-group{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 26px 14px;box-shadow:var(--shadow-1);
}
.faq-group-title{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:16px;}
.faq-group-title .dot{width:9px;height:9px;border-radius:3px;background:var(--accent-600);flex-shrink:0;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-of-type{border-top:none;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:16px 0;font-size:15.5px;font-weight:600;line-height:1.6;color:var(--text);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-item summary .q-index{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;margin-top:1px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:700;
}
.faq-item summary .chev{
  margin-left:auto;flex-shrink:0;color:var(--muted);
  transition:transform .22s var(--ease),color .22s var(--ease);margin-top:2px;
}
.faq-item[open] summary{color:var(--brand-700);}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--accent-600);}
.faq-answer{padding:0 0 18px 36px;font-size:14.5px;line-height:1.85;color:var(--muted);}
.faq-answer a{text-decoration:underline;text-underline-offset:3px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  background:linear-gradient(120deg,var(--brand-700) 0%,#0B3A33 58%,var(--band-dark) 100%);
  color:#fff;padding:56px 52px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,123,51,.22),transparent 70%);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:31px;line-height:1.3;font-weight:700;margin-bottom:14px;letter-spacing:-.01em;}
.cta-copy p{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78);max-width:36em;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-actions .btn-primary{width:100%;max-width:320px;height:50px;font-size:15.5px;}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;max-width:320px;width:100%;height:50px;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.56);line-height:1.7;}

/* ============ 隐私说明条 ============ */
.privacy-strip{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--soft);border:1px solid var(--line);border-radius:16px;
  padding:24px 26px;margin-top:24px;
}
.privacy-strip .shield{
  flex-shrink:0;width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-700);
}
.privacy-strip p{font-size:14px;line-height:1.82;color:var(--muted);}
.privacy-strip strong{color:var(--text);font-weight:600;}

/* ============ 页脚 ============ */
.site-footer{background:var(--band-dark);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;padding-bottom:52px;}
.site-footer .logo{color:#fff;margin-bottom:18px;}
.site-footer .logo-text b{color:#fff;}
.site-footer .logo-text span{color:rgba(255,255,255,.6);}
.site-footer .logo-mark{background:linear-gradient(135deg,var(--accent-600),#E0A163);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:30em;}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(255,255,255,.58);}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.64);}
.footer-col a:hover{color:var(--accent-50);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.48);
}
.footer-bottom .links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent-50);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1080px;}
  .main-nav{gap:18px;}
  .main-nav a{font-size:14.5px;}
  .banner-inner h1{font-size:40px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .page-banner{padding:126px 0 54px;}
  .banner-inner h1{font-size:34px;}
  .banner-lead{font-size:16px;}
  .section{padding:72px 0;}
  .section-title{font-size:27px;}
  .res-grid{grid-template-columns:repeat(2,1fr);}
  .faq-groups{grid-template-columns:1fr;}
  .support-band{padding:38px 30px;}
  .band-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .band-item:nth-child(3){border-left:none;padding-left:0;}
  .cta-band{grid-template-columns:1fr;gap:30px;padding:44px 34px;}
  .cta-actions{flex-direction:row;flex-wrap:wrap;align-items:center;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:auto;max-width:none;flex:1 1 200px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .site-footer{padding-top:56px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .logo{font-size:15.5px;}
  .logo-text span{font-size:13.5px;}
  .page-banner{padding:112px 0 48px;background-position:center top;}
  .banner-inner h1{font-size:30px;line-height:1.28;}
  .banner-lead{font-size:15px;margin-bottom:24px;}
  .support-search{flex-wrap:wrap;border-radius:12px;padding:10px;}
  .support-search .search-icon{display:none;}
  .support-search input[type="search"]{flex:1 1 100%;height:42px;padding:0 6px;}
  .support-search .btn{width:100%;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .section-title{font-size:24px;}
  .res-grid{grid-template-columns:1fr;}
  .support-band{padding:30px 22px;border-radius:16px;}
  .support-band h2{font-size:22px;}
  .band-grid{grid-template-columns:1fr;gap:24px;}
  .band-item{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;}
  .band-item:first-child{border-top:none;padding-top:0;}
  .band-item .num{font-size:34px;}
  .faq-group{padding:20px 18px 10px;}
  .faq-item summary{font-size:15px;gap:10px;}
  .faq-answer{padding-left:32px;}
  .cta-band{padding:34px 22px;border-radius:16px;}
  .cta-copy h2{font-size:23px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:100%;flex:none;}
  .privacy-strip{padding:20px 18px;gap:14px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:38px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .site-footer{margin-top:56px;}
}
@media (max-width:420px){
  .banner-inner h1{font-size:27px;}
  .section-title{font-size:21px;}
  .res-card{box-shadow:none;border-color:var(--line);}
  .res-card:hover{transform:none;box-shadow:none;}
  .btn{width:100%;}
  .main-nav{gap:12px;}
  .hot-tags .tag{font-size:12.5px;padding:5px 11px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}