:root{--green-900:#0d2b1f;--green-800:#1a3d2c;--green-700:#1f4d35;--green-600:#2a6347;--green-400:#4a9068;--green-200:#a8d5bb;--green-100:#d4eede;--green-50:#f0f9f4;--gold-600:#b8922a;--gold-400:#d4a843;--gold-200:#ead99a;--gold-100:#f5edcc;--ivory:#faf8f3;--ivory-dark:#f2ede3;--red-italy:#ce2b37;--text-dark:#0d2b1f;--text-mid:#3d5a47;--text-muted:#7a9485;--font-display:'Playfair Display',Georgia,serif;--font-body:'DM Sans',system-ui,sans-serif;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--shadow-md:0 4px 24px rgba(13,43,31,0.12);}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:var(--font-body);background:var(--ivory);color:var(--text-dark);line-height:1.7;}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.3;}
.container{max-width:1100px;margin:0 auto;padding:0 24px;}
.navbar{position:sticky;top:0;z-index:100;background:rgba(250,248,243,0.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--green-100);padding:0 24px;}
.navbar-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px;}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo-icon{width:34px;height:34px;border-radius:8px;background:var(--green-800);display:flex;align-items:center;justify-content:center;}
.logo-icon svg{width:18px;height:18px;}
.logo-text{font-family:var(--font-display);font-size:1.1rem;font-weight:700;color:var(--green-900);}
.logo-text span{color:var(--gold-600);}
.nav-r{display:flex;align-items:center;gap:8px;}
.nav-back{font-size:0.85rem;color:var(--text-mid);text-decoration:none;padding:8px 14px;border-radius:var(--radius-sm);}
.nav-cta{background:var(--green-800);color:#fff;font-size:0.85rem;font-weight:600;text-decoration:none;padding:8px 16px;border-radius:var(--radius-sm);transition:background 0.2s;}
.nav-cta:hover{background:var(--green-700);}
/* ARTICLE HERO */
.article-hero{background:var(--green-900);padding:56px 24px 64px;position:relative;overflow:hidden;}
.article-hero::after{content:'';position:absolute;right:0;top:0;bottom:0;width:5px;background:linear-gradient(to bottom,var(--green-600) 33%,#fff 33%,#fff 67%,var(--red-italy) 67%);opacity:0.6;}
.article-tag{display:inline-flex;background:rgba(212,168,67,0.15);color:var(--gold-400);border:1px solid rgba(212,168,67,0.3);border-radius:20px;font-size:0.72rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:5px 14px;margin-bottom:16px;}
.article-hero h1{color:var(--ivory);font-size:clamp(1.8rem,3.5vw,2.6rem);margin-bottom:16px;max-width:720px;}
.article-meta{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.article-meta span{font-size:0.82rem;color:var(--green-200);}
.article-meta strong{color:var(--gold-400);}
/* LAYOUT */
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:56px;padding:48px 0 80px;align-items:start;}
/* ARTICLE BODY */
.article-body h2{font-size:1.5rem;color:var(--green-900);margin:36px 0 14px;padding-top:8px;border-top:2px solid var(--green-100);}
.article-body h3{font-size:1.1rem;color:var(--green-800);margin:24px 0 10px;}
.article-body p{font-size:0.95rem;color:var(--text-mid);margin-bottom:16px;line-height:1.8;}
.article-body ul,.article-body ol{margin:0 0 16px 20px;}
.article-body li{font-size:0.95rem;color:var(--text-mid);margin-bottom:7px;line-height:1.7;}
.article-body strong{color:var(--green-900);}
.article-body a{color:var(--green-600);text-decoration:none;}
.article-body a:hover{text-decoration:underline;}
.tip-box{background:var(--green-50);border:1px solid var(--green-200);border-left:4px solid var(--green-600);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:14px 18px;margin:20px 0;font-size:0.88rem;color:var(--text-mid);line-height:1.7;}
.tip-box strong{color:var(--green-700);}
.warn-box{background:#fff8e6;border:1px solid var(--gold-200);border-left:4px solid var(--gold-600);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:14px 18px;margin:20px 0;font-size:0.88rem;color:#7a5a10;line-height:1.7;}
.info-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:0.88rem;}
.info-table th{background:var(--green-800);color:var(--ivory);padding:10px 14px;text-align:left;font-weight:500;}
.info-table td{padding:10px 14px;border-bottom:1px solid var(--green-100);color:var(--text-mid);}
.info-table tr:hover td{background:var(--green-50);}
.step-list{list-style:none;margin:0 0 20px 0;}
.step-list li{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--green-50);align-items:flex-start;}
.step-list li:last-child{border-bottom:none;}
.step-num{width:28px;height:28px;border-radius:50%;background:var(--green-800);color:var(--gold-400);display:flex;align-items:center;justify-content:center;font-size:0.75rem;font-weight:700;flex-shrink:0;margin-top:2px;}
.step-text{font-size:0.92rem;color:var(--text-mid);line-height:1.6;}
.step-text strong{color:var(--green-900);display:block;margin-bottom:3px;}
/* SIDEBAR */
.sidebar{position:sticky;top:80px;}
.cta-card{background:var(--green-800);border-radius:var(--radius-lg);padding:24px;margin-bottom:20px;}
.cta-card h3{font-family:var(--font-display);font-size:1.1rem;color:var(--ivory);margin-bottom:8px;}
.cta-card p{font-size:0.83rem;color:var(--green-200);margin-bottom:16px;line-height:1.6;}
.cta-price{font-family:var(--font-display);font-size:1.8rem;font-weight:700;color:var(--gold-400);margin-bottom:14px;}
.cta-price span{font-size:0.85rem;font-weight:400;color:var(--green-200);}
.cta-btn{display:block;background:var(--gold-600);color:#fff;text-align:center;padding:12px;border-radius:var(--radius-sm);text-decoration:none;font-weight:700;font-size:0.9rem;transition:background 0.2s;}
.cta-btn:hover{background:var(--gold-400);}
.cta-btn-outline{display:block;border:1.5px solid var(--green-200);color:var(--green-200);text-align:center;padding:11px;border-radius:var(--radius-sm);text-decoration:none;font-weight:500;font-size:0.85rem;margin-top:8px;}
.toc-card{background:#fff;border:1px solid var(--green-100);border-radius:var(--radius-md);padding:20px;margin-bottom:20px;}
.toc-card h4{font-size:0.78rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:var(--text-muted);margin-bottom:12px;}
.toc-list{list-style:none;}
.toc-list li{padding:4px 0;}
.toc-list a{font-size:0.85rem;color:var(--text-mid);text-decoration:none;display:flex;align-items:center;gap:6px;}
.toc-list a:hover{color:var(--green-800);}
.toc-list a::before{content:'→';font-size:0.7rem;color:var(--green-600);}
/* ARTICLE CTA */
.cta-article{background:var(--green-800);border-radius:var(--radius-lg);padding:36px 32px;margin:40px 0 8px;text-align:center;}
.cta-article h2{font-size:1.5rem;color:var(--ivory);margin:0 0 12px;border-top:none;padding-top:0;}
.cta-article p{font-size:0.95rem;color:var(--green-200);margin-bottom:24px;line-height:1.7;}
.cta-article .cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.cta-article .cta-btn{display:inline-block;background:var(--gold-600);color:#fff;text-align:center;padding:13px 24px;border-radius:var(--radius-sm);text-decoration:none;font-weight:700;font-size:0.9rem;transition:background 0.2s;}
.cta-article .cta-btn:hover{background:var(--gold-400);}
.cta-article .cta-btn-outline{display:inline-block;border:1.5px solid var(--green-200);color:var(--green-200);text-align:center;padding:12px 24px;border-radius:var(--radius-sm);text-decoration:none;font-weight:500;font-size:0.85rem;margin-top:0;transition:border-color 0.2s,color 0.2s;}
.cta-article .cta-btn-outline:hover{border-color:var(--ivory);color:var(--ivory);}
/* RELATED */
.related-section{border-top:2px solid var(--green-100);padding-top:40px;margin-top:40px;}
.related-section h2{font-size:1.3rem;color:var(--green-900);margin-bottom:20px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.related-card{background:#fff;border:1px solid var(--green-100);border-radius:var(--radius-md);padding:18px;text-decoration:none;transition:box-shadow 0.2s,transform 0.2s;display:block;}
.related-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.related-title{font-size:0.88rem;font-weight:600;color:var(--green-900);margin-bottom:6px;line-height:1.4;}
.related-meta{font-size:0.78rem;color:var(--text-muted);}
/* BREADCRUMB */
.bc{padding:16px 0;font-size:0.82rem;color:var(--text-muted);}
.bc a{color:var(--text-muted);text-decoration:none;}
.bc span{margin:0 6px;}
footer{background:var(--green-900);padding:32px 24px;margin-top:0;}
.fb{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;font-size:0.8rem;color:var(--green-200);flex-wrap:wrap;gap:12px;}
.fl{display:flex;gap:16px;flex-wrap:wrap;}
.fl a{color:var(--green-200);text-decoration:none;}
.fl a:hover{color:var(--ivory);}
@media(max-width:860px){.article-layout{grid-template-columns:1fr;}.sidebar{position:static;}.related-grid{grid-template-columns:1fr;}}

/* ═══ MOBILE OPTIMIZATIONS ═══ */
/* 汉堡菜单按钮 */
.nav-hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;background:none;border:none;cursor:pointer;padding:4px;flex-shrink:0;}
.nav-hamburger span{display:block;height:2px;width:24px;background:var(--green-800);border-radius:2px;transition:all 0.25s;}
.nav-hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-hamburger.open span:nth-child(2){opacity:0;}
.nav-hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* 移动端抽屉菜单 */
.nav-drawer{display:none;position:fixed;top:64px;left:0;right:0;background:var(--ivory);border-bottom:1px solid var(--green-100);padding:12px 16px 20px;z-index:99;box-shadow:0 4px 24px rgba(13,43,31,0.12);}
.nav-drawer.open{display:flex;flex-direction:column;gap:2px;}
.nav-drawer a{font-size:0.95rem;font-weight:500;color:var(--text-mid);text-decoration:none;padding:11px 14px;border-radius:var(--radius-sm);transition:background 0.15s;}
.nav-drawer a:hover{background:var(--green-50);color:var(--green-800);}
.nav-drawer .nav-cta{background:var(--green-800);color:var(--ivory)!important;text-align:center;margin-top:6px;}
.nav-drawer .lang-switch{align-self:flex-start;margin-top:6px;}

@media(max-width:900px){
  .nav-links{display:none!important;}
  .nav-hamburger{display:flex;}
}
@media(max-width:600px){
  /* 基础间距 */
  .container{padding:0 16px;}
  h1{font-size:clamp(1.7rem,7vw,2.4rem)!important;}
  h2{font-size:clamp(1.4rem,5vw,2rem)!important;}
  /* Hero */
  .hero-content{padding:48px 16px 40px!important;}
  .hero-lead{font-size:1rem!important;}
  .hero-actions{flex-direction:column;gap:10px;}
  .hero-actions a{width:100%;text-align:center;justify-content:center;}
  /* Service cards */
  .services-grid{max-width:100%!important;}
  .service-card{padding:24px 20px;}
  /* Stats */
  .stats-grid{grid-template-columns:1fr 1fr!important;gap:16px;}
  .stat-num{font-size:2rem!important;}
  /* Steps */
  .full-steps{grid-template-columns:repeat(2,1fr)!important;gap:8px;}
  .full-step-card{padding:14px 10px;}
  /* Why grid */
  .why-grid{grid-template-columns:1fr!important;}
  /* Trust bar */
  .trust-bar-inner{flex-direction:column;align-items:flex-start;gap:12px!important;padding:16px 0;}
  /* CTA */
  .cta-actions{flex-direction:column;}
  .cta-actions a{width:100%;text-align:center;}
  /* Article layout */
  .article-layout{grid-template-columns:1fr!important;gap:32px!important;}
  .sidebar{position:static!important;}
  /* FAQ */
  .faq-categories,.cat-tabs,.cat-btns{gap:6px!important;}
  .faq-cat-btn,.cat-btn,.cb{font-size:0.78rem!important;padding:6px 12px!important;}
  /* Order/form */
  .order-layout,.contact-layout{grid-template-columns:1fr!important;}
  .order-card{position:static!important;}
  .form-row{margin-bottom:12px;}
  /* Footer */
  .footer-inner{grid-template-columns:1fr!important;}
  .footer-bottom{flex-direction:column;gap:10px;text-align:center;}
  .footer-legal{flex-wrap:wrap;justify-content:center;gap:12px;}
  /* Blog grid */
  .blog-grid{grid-template-columns:1fr!important;}
  /* Related grid */
  .related-grid{grid-template-columns:1fr!important;}
  /* Step list */
  .how-steps{grid-template-columns:1fr!important;}
  /* Tables scroll */
  .info-table,.fees-table,table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;}
  /* Buttons full width on mobile */
  .btn-primary,.btn-outline,.btn-gold,.btn-p,.bp{width:100%;justify-content:center;text-align:center;}
  /* Page hero */
  .page-hero,.hero,.article-hero{padding:40px 16px 48px!important;}
  .page-hero h1,.article-hero h1{font-size:clamp(1.6rem,6vw,2.2rem)!important;}
  /* Progress bar */
  .progress-inner{gap:0;}
  .prog-step{padding:10px 8px!important;font-size:0.7rem!important;}
  /* CTA card in sidebar */
  .cta-card{padding:20px;}
  /* Section spacing */
  .section,.sec,.blog-section{padding:40px 0 56px!important;}
}