* { margin:0; padding:0; box-sizing:border-box; }
:root {
  --rf-orange:#e67e22;
  --rf-orange-dark:#d35400;
  --rf-orange-light:#fff3e6;
  --rf-brown:#5d4037;
  --rf-brown-light:#8d6e63;
  --rf-bg:#faf8f5;
  --rf-text:#3e2723;
  --rf-text-light:#6d4c41;
  --rf-border:#f0e6d8;
}
body { font-family:'Noto Sans SC',-apple-system,sans-serif; color:var(--rf-text); background:var(--rf-bg); line-height:1.7; }
.rf-container { max-width:1200px; margin:0 auto; padding:0 20px; }
a { text-decoration:none; color:inherit; }
img { max-width:100%; display:block; }

/* topbar */
.rf-topbar { background:var(--rf-brown); color:#fff; font-size:13px; }
.rf-topbar .rf-container { display:flex; justify-content:space-between; align-items:center; height:36px; }
.rf-topbar-tel { color:#ffcc80; font-weight:500; }

/* nav */
.rf-nav { background:#fff; box-shadow:0 2px 12px rgba(93,64,55,.08); position:sticky; top:0; z-index:100; }
.rf-nav-wrap { display:flex; justify-content:space-between; align-items:center; height:76px; }
.rf-logo { font-size:20px; font-weight:700; color:var(--rf-brown); }
.rf-logo span { display:block; font-size:12px; font-weight:400; color:var(--rf-orange); margin-top:2px; }
.rf-nav-links { display:flex; list-style:none; gap:2px; }
.rf-nav-links a { display:block; padding:8px 14px; font-size:14px; color:var(--rf-text-light); border-radius:4px; transition:.2s; }
.rf-nav-links a:hover { background:var(--rf-orange-light); color:var(--rf-orange-dark); }
.rf-menu-btn { display:none; background:none; border:none; font-size:24px; color:var(--rf-brown); cursor:pointer; }

/* hero */
.rf-hero { background:linear-gradient(135deg,#fff9f2 0%,#ffedd5 100%); padding:70px 0; }
.rf-hero-wrap { display:grid; grid-template-columns:1fr 1fr; gap:50px; align-items:center; }
.rf-hero-tag { display:inline-block; background:var(--rf-orange); color:#fff; padding:5px 14px; border-radius:20px; font-size:12px; margin-bottom:20px; }
.rf-hero h1 { font-size:44px; line-height:1.25; color:var(--rf-brown); margin-bottom:20px; }
.rf-hero p { font-size:16px; color:var(--rf-text-light); margin-bottom:28px; }
.rf-hero-btns { display:flex; gap:14px; margin-bottom:20px; flex-wrap:wrap; }
.rf-btn { display:inline-block; padding:12px 28px; background:var(--rf-orange); color:#fff; border-radius:6px; font-weight:500; transition:.2s; border:none; cursor:pointer; font-size:15px; }
.rf-btn:hover { background:var(--rf-orange-dark); transform:translateY(-2px); }
.rf-btn-secondary { background:#fff; color:var(--rf-orange-dark); border:2px solid var(--rf-orange); }
.rf-btn-secondary:hover { background:var(--rf-orange-light); }
.rf-hero-tel { display:inline-block; font-size:18px; font-weight:700; color:var(--rf-orange-dark); }
.rf-hero-img img { border-radius:12px; box-shadow:0 20px 50px rgba(230,126,34,.15); }

/* section head */
section { padding:70px 0; }
.rf-section-head { text-align:center; margin-bottom:50px; }
.rf-section-head h2 { font-size:32px; color:var(--rf-brown); margin-bottom:12px; }
.rf-section-head p { font-size:15px; color:var(--rf-text-light); max-width:700px; margin:0 auto; }

/* intro */
.rf-intro { background:#fff; padding:50px 0; border-top:1px solid var(--rf-border); border-bottom:1px solid var(--rf-border); }
.rf-intro-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.rf-intro-num { font-size:40px; font-weight:700; color:var(--rf-orange); margin-bottom:8px; }
.rf-intro-item p { font-size:14px; color:var(--rf-text-light); }

/* rif */
.rf-rif-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.rf-rif-card { background:#fff; border-radius:10px; padding:30px; border:1px solid var(--rf-border); border-left:4px solid var(--rf-orange); transition:.3s; }
.rf-rif-card:hover { box-shadow:0 8px 24px rgba(230,126,34,.1); transform:translateY(-4px); }
.rf-rif-icon { font-size:36px; margin-bottom:14px; }
.rf-rif-card h3 { font-size:18px; color:var(--rf-brown); margin-bottom:10px; }
.rf-rif-card p { font-size:14px; color:var(--rf-text-light); }

/* cause */
.rf-cause { background:linear-gradient(135deg,#fff8f0,#fff); }
.rf-cause-wrap { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.rf-cause-col { background:#fff; border-radius:10px; padding:28px; border-top:4px solid var(--rf-orange); }
.rf-cause-col h3 { font-size:18px; color:var(--rf-brown); margin-bottom:18px; padding-bottom:12px; border-bottom:1px dashed var(--rf-border); }
.rf-cause-list { list-style:none; }
.rf-cause-list li { padding:8px 0; font-size:14px; color:var(--rf-text-light); padding-left:20px; position:relative; }
.rf-cause-list li::before { content:"▸"; color:var(--rf-orange); position:absolute; left:0; }

/* treat */
.rf-treat-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.rf-treat-card { background:#fff; border-radius:10px; padding:30px; box-shadow:0 2px 10px rgba(93,64,55,.05); }
.rf-treat-card h3 { font-size:18px; color:var(--rf-orange-dark); margin-bottom:16px; padding-bottom:10px; border-bottom:2px solid var(--rf-orange-light); }
.rf-treat-card ul { list-style:none; }
.rf-treat-card ul li { padding:7px 0; font-size:14px; color:var(--rf-text-light); padding-left:22px; position:relative; }
.rf-treat-card ul li::before { content:"●"; color:var(--rf-orange); font-size:8px; position:absolute; left:0; top:12px; }

/* process */
.rf-process { background:var(--rf-orange-light); }
.rf-process-line { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; position:relative; }
.rf-process-step { background:#fff; border-radius:10px; padding:28px; position:relative; }
.rf-step-num { font-size:36px; font-weight:700; color:var(--rf-orange); margin-bottom:12px; font-family:Georgia,serif; }
.rf-process-step h3 { font-size:17px; color:var(--rf-brown); margin-bottom:10px; }
.rf-process-step p { font-size:14px; color:var(--rf-text-light); }

/* team */
.rf-team-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.rf-team-card { background:#fff; border-radius:10px; padding:24px; text-align:center; border:1px solid var(--rf-border); }
.rf-team-card h4 { font-size:16px; color:var(--rf-brown); margin-bottom:10px; }
.rf-team-card p { font-size:13px; color:var(--rf-text-light); }

/* faq */
.rf-faq-list { max-width:900px; margin:0 auto; }
.rf-faq-item { background:#fff; border-radius:8px; margin-bottom:12px; border:1px solid var(--rf-border); overflow:hidden; }
.rf-faq-item summary { padding:18px 24px; cursor:pointer; font-weight:500; color:var(--rf-brown); font-size:15px; list-style:none; position:relative; padding-right:40px; }
.rf-faq-item summary::after { content:"+"; position:absolute; right:24px; top:50%; transform:translateY(-50%); font-size:20px; color:var(--rf-orange); transition:.2s; }
.rf-faq-item[open] summary::after { content:"−"; }
.rf-faq-item p { padding:0 24px 20px; font-size:14px; color:var(--rf-text-light); }

/* about */
.rf-about-wrap { max-width:1000px; margin:0 auto; text-align:center; }
.rf-about-wrap > h2 { font-size:30px; color:var(--rf-brown); margin-bottom:16px; }
.rf-about-wrap > p { font-size:15px; color:var(--rf-text-light); margin-bottom:40px; }
.rf-about-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.rf-about-item { background:var(--rf-orange-light); border-radius:10px; padding:24px; text-align:left; }
.rf-about-item h4 { font-size:16px; color:var(--rf-orange-dark); margin-bottom:10px; }
.rf-about-item p { font-size:13px; color:var(--rf-text-light); }

/* news — 强制保留ul.article-cards Grid */
ul.article-cards { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:20px; list-style:none; margin:0; padding:0; width:100%; box-sizing:border-box; }
ul.article-cards > li.article-card { min-width:0; width:auto; max-width:none; margin:0; float:none; box-sizing:border-box; background:#fff; border-radius:10px; overflow:hidden; border:1px solid var(--rf-border); transition:.3s; }
ul.article-cards > li.article-card:hover { transform:translateY(-4px); box-shadow:0 8px 20px rgba(230,126,34,.1); }
.article-card .card-thumb { width:100%; overflow:hidden; }
.article-card .card-thumb img { display:block; width:100%; max-width:100%; height:180px; object-fit:cover; }
.article-card .card-title { overflow-wrap:anywhere; font-size:15px; font-weight:500; color:var(--rf-brown); padding:14px 16px 8px; }
.article-card .card-date { display:block; font-size:12px; color:var(--rf-brown-light); padding:0 16px 10px; }
.article-card .card-summary { overflow-wrap:anywhere; font-size:13px; color:var(--rf-text-light); padding:0 16px 16px; line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.rf-news h2 { font-size:28px; color:var(--rf-brown); text-align:center; margin-bottom:36px; }

/* consult */
.rf-consult { background:linear-gradient(135deg,var(--rf-orange),var(--rf-orange-dark)); color:#fff; padding:60px 0; }
.rf-consult-wrap { text-align:center; max-width:700px; margin:0 auto; }
.rf-consult h3 { font-size:26px; margin-bottom:14px; }
.rf-consult p { font-size:15px; opacity:.9; margin-bottom:24px; }
.rf-consult .rf-btn { background:#fff; color:var(--rf-orange-dark); font-size:16px; padding:14px 36px; }
.rf-consult .rf-btn:hover { background:#fff9f2; }

/* detail */
.rf-detail { padding:50px 0; background:var(--rf-bg); }
.rf-article { max-width:820px; margin:40px auto 0; background:#fff; border-radius:12px; padding:40px; box-shadow:0 2px 16px rgba(93,64,55,.06); }
.rf-article-title { font-size:30px; color:var(--rf-brown); margin-bottom:14px; line-height:1.4; }
.rf-article-meta { font-size:13px; color:var(--rf-brown-light); margin-bottom:24px; padding-bottom:14px; border-bottom:1px solid var(--rf-border); }
.rf-article-cover { margin-bottom:24px; border-radius:8px; overflow:hidden; }
.rf-article-cover img { width:100%; height:auto; }
.rf-article-summary { background:var(--rf-orange-light); padding:18px 22px; border-left:4px solid var(--rf-orange); font-size:15px; color:var(--rf-text-light); margin-bottom:28px; border-radius:0 6px 6px 0; line-height:1.8; }
.rf-article-content { font-size:15px; line-height:1.9; color:var(--rf-text); }
.rf-article-content h2,.rf-article-content h3 { color:var(--rf-brown); margin:28px 0 14px; }
.rf-article-content h2 { font-size:22px; }
.rf-article-content h3 { font-size:18px; }
.rf-article-content p { margin-bottom:14px; }
.rf-article-content img { max-width:100%; border-radius:6px; margin:14px 0; }
.rf-article-disclaimer { margin-top:36px; padding:20px; background:#fff8e1; border-radius:8px; border-left:4px solid #ffa000; font-size:13px; color:#795548; }
.rf-article-disclaimer h4 { font-size:15px; margin-bottom:8px; color:#f57c00; }
.rf-related { margin-top:40px; padding-top:30px; border-top:1px solid var(--rf-border); }
.rf-related h4 { font-size:17px; color:var(--rf-brown); margin-bottom:16px; }
.rf-related-list { display:grid; grid-template-columns:repeat(2,1fr); gap:10px; margin-bottom:24px; }
.rf-related-list a { padding:10px 14px; background:var(--rf-orange-light); border-radius:6px; font-size:14px; color:var(--rf-orange-dark); }
.rf-related-list a:hover { background:var(--rf-orange); color:#fff; }
.rf-detail-cta { display:flex; gap:14px; flex-wrap:wrap; justify-content:center; }

/* footer */
.rf-footer { background:var(--rf-brown); color:#d7ccc8; padding:60px 0 20px; }
.rf-footer-top { display:grid; grid-template-columns:2fr 1fr 1fr 1.5fr; gap:40px; margin-bottom:40px; }
.rf-footer-logo { font-size:20px; font-weight:700; color:#fff; margin-bottom:14px; }
.rf-footer-brand p { font-size:13px; line-height:1.8; margin-bottom:18px; }
.rf-footer-tel { color:#ffcc80; font-size:18px; font-weight:700; }
.rf-footer-col h4 { color:#fff; font-size:15px; margin-bottom:16px; }
.rf-footer-col a { display:block; font-size:13px; color:#bcaaa4; padding:5px 0; }
.rf-footer-col a:hover { color:#ffcc80; }
.rf-footer-bottom { border-top:1px solid #6d4c41; padding-top:20px; font-size:12px; display:flex; gap:24px; flex-wrap:wrap; justify-content:center; }
.rf-footer-bottom a { color:#bcaaa4; }
.rf-footer-bottom a:hover { color:#ffcc80; }

/* responsive */
@media(max-width:900px){
  .rf-menu-btn{display:block;}
  .rf-nav-links{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px;box-shadow:0 4px 12px rgba(0,0,0,.1);gap:0;}
  .rf-nav-links.rf-open{display:flex;}
  .rf-nav-links a{padding:12px 0;border-bottom:1px solid var(--rf-border);border-radius:0;}
  .rf-hero-wrap{grid-template-columns:1fr;}
  .rf-hero h1{font-size:32px;}
  .rf-intro-grid{grid-template-columns:repeat(2,1fr);}
  .rf-rif-grid,.rf-cause-wrap,.rf-treat-grid,.rf-process-line,.rf-team-grid,.rf-about-grid,.rf-related-list,.rf-footer-top{grid-template-columns:1fr;}
  .rf-article{padding:24px;}
  section{padding:50px 0;}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;}}