/* ===== CSS Reset & Variables ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#1B3A32;--primary-light:#2A5449;--primary-dark:#122822;
  --accent:#C4956A;--accent-light:#D4A97A;--accent-dark:#A67B50;
  --bg:#FAF8F5;--bg-alt:#F2EDE6;--bg-dark:#1A1A1A;
  --text:#2D2D2D;--text-secondary:#6B6B6B;--text-light:#9A9A9A;
  --white:#FFFFFF;--border:#E5E0D8;
  --shadow-sm:0 2px 12px rgba(0,0,0,.06);--shadow-md:0 8px 32px rgba(0,0,0,.1);--shadow-lg:0 16px 48px rgba(0,0,0,.14);
  --radius:4px;--radius-lg:8px;--transition:.3s cubic-bezier(.4,0,.2,1);
  --font-sans:'Microsoft YaHei','PingFang SC','Helvetica Neue',Arial,sans-serif;
  --container:1280px;
}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
ul,ol{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}

/* ===== Typography ===== */
h1,h2,h3,h4{font-weight:700;line-height:1.3;color:var(--primary-dark)}
.section-title{font-size:clamp(28px,4vw,42px);margin-bottom:8px;letter-spacing:-.5px}
.section-subtitle{font-size:16px;color:var(--text-secondary);margin-bottom:48px;font-weight:300}
.section-header{text-align:center;margin-bottom:56px}
.section-header .line{width:48px;height:3px;background:var(--accent);margin:16px auto 0;border-radius:2px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-size:15px;font-weight:500;border-radius:var(--radius);transition:all var(--transition);cursor:pointer}
.btn-primary{background:var(--accent);color:var(--white)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(196,149,106,.35)}
.btn-outline{border:1.5px solid var(--primary);color:var(--primary)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:rgba(196,149,106,.08)}
.btn-block{width:100%;padding:14px;font-size:16px}
.btn-sm{padding:8px 18px;font-size:13px}

/* ===== Navigation (inner pages) ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;transition:all var(--transition);background:rgba(255,255,255,.97);backdrop-filter:blur(12px);box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-logo img{height:40px;width:auto}
.nav-logo-text{font-size:20px;font-weight:700;color:var(--primary);line-height:1.2;display:flex;align-items:baseline;gap:10px;white-space:nowrap}
.nav-logo-text small{font-size:15px;font-weight:500;color:#1B3A32;letter-spacing:1px;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-menu a{padding:8px 10px;font-size:14px;font-weight:500;color:var(--text);border-radius:var(--radius);transition:all var(--transition);white-space:nowrap}
.nav-menu a:hover,.nav-menu a.active{color:var(--accent)}
.nav-item{position:relative}
.nav-item > a{display:flex;align-items:center;gap:4px}
.nav-item > a::after{content:'';width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;opacity:.6;transition:transform var(--transition)}
.nav-item:hover > a::after{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);min-width:180px;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:8px 0;opacity:0;visibility:hidden;transition:all var(--transition);z-index:100}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown a{display:block;padding:10px 24px;font-size:14px;color:var(--text);border-radius:0;white-space:nowrap;transition:all var(--transition)}
.dropdown a:hover{background:var(--bg);color:var(--accent-dark);padding-left:28px}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-extra{font-size:14px;color:var(--text-secondary);padding:8px 12px;transition:color var(--transition)}
.nav-extra:hover{color:var(--accent)}
.mobile-toggle{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.mobile-toggle span{width:24px;height:2px;background:var(--primary);transition:all var(--transition)}

/* ===== Page Header ===== */
.page-header{padding:140px 0 60px;background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:var(--white);text-align:center}
.page-header h1{color:var(--white);font-size:clamp(28px,4vw,40px);margin-bottom:12px}
.page-header p{color:rgba(255,255,255,.7);font-size:16px}
.breadcrumb{display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;color:rgba(255,255,255,.6);margin-top:16px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:var(--accent-light)}
.breadcrumb span{color:rgba(255,255,255,.4)}

/* ===== Cards ===== */
.card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--transition)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}

/* ===== Article List ===== */
.article-list{display:flex;flex-direction:column;gap:24px}
.article-item{display:flex;gap:24px;padding:24px;background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:all var(--transition)}
.article-item:hover{transform:translateX(4px);box-shadow:var(--shadow-md)}
.article-thumb{flex:0 0 240px;height:160px;border-radius:var(--radius);overflow:hidden;background:var(--bg-alt)}
.article-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.article-item:hover .article-thumb img{transform:scale(1.05)}
.article-body{flex:1;display:flex;flex-direction:column}
.article-body h3{font-size:20px;margin-bottom:10px;line-height:1.4;transition:color var(--transition)}
.article-item:hover .article-body h3{color:var(--accent-dark)}
.article-excerpt{font-size:14px;color:var(--text-secondary);line-height:1.8;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-meta{display:flex;align-items:center;gap:20px;font-size:13px;color:var(--text-light);margin-top:auto}
.article-meta span{display:flex;align-items:center;gap:6px}
.article-tag{display:inline-block;padding:4px 12px;background:rgba(27,58,50,.08);color:var(--primary);font-size:12px;border-radius:30px;font-weight:500}

/* ===== Company/Brand Card ===== */
.company-card{background:var(--white);border-radius:var(--radius-lg);padding:28px;border:1px solid var(--border);transition:all var(--transition)}
.company-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
.company-header{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.company-avatar{width:56px;height:56px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;color:var(--accent-light);flex-shrink:0;overflow:hidden}
.company-avatar img{width:100%;height:100%;object-fit:cover}
.company-info h3{font-size:18px;margin-bottom:4px}
.company-location{font-size:13px;color:var(--text-light)}
.company-desc{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:16px;min-height:48px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.company-footer{display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--border)}
.company-tag{font-size:12px;padding:4px 12px;background:rgba(27,58,50,.08);color:var(--primary);border-radius:30px;font-weight:500}
.company-link{font-size:14px;color:var(--accent-dark);font-weight:500}

/* ===== Grid Layouts ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.sidebar-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}

/* ===== Sidebar ===== */
.sidebar{position:sticky;top:100px}
.widget{background:var(--white);border-radius:var(--radius-lg);padding:28px;margin-bottom:24px;box-shadow:var(--shadow-sm)}
.widget-title{font-size:18px;margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid var(--accent);display:inline-block}
.widget-list li{padding:12px 0;border-bottom:1px solid var(--border)}
.widget-list li:last-child{border-bottom:none}
.widget-list a{font-size:14px;color:var(--text);transition:color var(--transition);display:flex;justify-content:space-between;align-items:center}
.widget-list a:hover{color:var(--accent-dark)}
.widget-list .count{font-size:12px;color:var(--text-light);background:var(--bg);padding:2px 10px;border-radius:30px}

/* ===== Pagination ===== */
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;font-size:14px;border-radius:var(--radius);border:1px solid var(--border);background:var(--white);color:var(--text);transition:all var(--transition)}
.pagination a:hover{border-color:var(--accent);color:var(--accent)}
.pagination .page-current{background:var(--primary);color:var(--white);border-color:var(--primary)}
.pagination .page-ellipsis{border:none;background:transparent;color:var(--text-light);min-width:24px;padding:0}

/* ===== Forms ===== */
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text);margin-bottom:8px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius);font-size:14px;font-family:var(--font-sans);transition:all var(--transition);background:var(--white)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,149,106,.1)}
.form-group textarea{resize:vertical;min-height:120px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-hint{font-size:12px;color:var(--text-light);margin-top:6px}
.form-error{color:#E74C3C;font-size:13px;margin-top:6px}
.form-success{color:#27AE60;font-size:13px;margin-top:6px}

/* ===== Like Button ===== */
.like-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border:1.5px solid var(--border);border-radius:30px;font-size:14px;color:var(--text-secondary);transition:all var(--transition);cursor:pointer;background:var(--white)}
.like-btn:hover{border-color:var(--accent);color:var(--accent)}
.like-btn.liked{background:var(--accent);color:var(--white);border-color:var(--accent)}
.like-btn svg{width:16px;height:16px}

/* ===== Footer ===== */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:60px 0 0;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.5fr 2.5fr;gap:64px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.footer-logo img{height:36px;width:auto;filter:brightness(0) invert(1)}
.footer-logo span{font-size:20px;font-weight:700;color:var(--white);line-height:1.2;display:flex;align-items:baseline;gap:10px}
.footer-logo span small{font-size:15px;font-weight:500;color:#7AB8A5;letter-spacing:1px}
.footer-desc{font-size:14px;line-height:1.9;margin-bottom:24px;color:rgba(255,255,255,.6)}
.footer-contact{display:flex;flex-wrap:wrap;gap:20px}
.footer-contact-item{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.8)}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.footer-col h4{font-size:16px;color:var(--white);margin-bottom:20px;font-weight:600}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.6);padding:6px 0;transition:all var(--transition)}
.footer-col a:hover{color:var(--accent-light);padding-left:6px}
.footer-bottom{padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4);line-height:2}
.footer-links-group{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:12px}
.footer-links-group a{color:rgba(255,255,255,.5);font-size:13px}
.footer-links-group a:hover{color:var(--accent-light)}

/* ===== Back to Top ===== */
.back-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;background:var(--primary);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all var(--transition);box-shadow:var(--shadow-md);z-index:999}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--accent);transform:translateY(-4px)}

/* ===== Mobile Menu ===== */
.mobile-menu{position:fixed;top:0;right:-100%;width:320px;max-width:85vw;height:100vh;background:var(--white);z-index:2000;transition:right .4s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-lg);padding:80px 32px 32px;overflow-y:auto}
.mobile-menu.open{right:0}
.mobile-menu-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1999;opacity:0;visibility:hidden;transition:all var(--transition)}
.mobile-menu-overlay.show{opacity:1;visibility:visible}
.mobile-menu a{display:block;padding:16px 0;font-size:17px;font-weight:500;color:var(--text);border-bottom:1px solid var(--border)}
.mobile-menu a:hover{color:var(--accent)}
.mobile-cta{display:block;margin-top:24px;padding:14px;text-align:center;background:var(--accent);color:var(--white)!important;border-radius:var(--radius);font-weight:500;border:none!important}
.mobile-menu-close{position:absolute;top:24px;right:24px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:24px;color:var(--text-secondary)}

/* ===== Detail Page ===== */
.detail-header{padding:140px 0 40px;background:var(--white);border-bottom:1px solid var(--border)}
.detail-title{font-size:clamp(24px,3vw,36px);margin-bottom:16px;line-height:1.4}
.detail-meta{display:flex;align-items:center;gap:24px;font-size:14px;color:var(--text-light);flex-wrap:wrap}
.detail-content{padding:40px 0;font-size:16px;line-height:2;color:var(--text)}
.detail-content img{max-width:100%;height:auto;border-radius:var(--radius);margin:20px 0}
.detail-content p{margin-bottom:16px}
.detail-content h2,.detail-content h3{margin:32px 0 16px}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .container{padding:0 24px}
  .nav-menu{display:none}
  .mobile-toggle{display:flex}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .sidebar-layout{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:40px}
  .footer-links{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .container{padding:0 16px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .article-item{flex-direction:column}
  .article-thumb{flex:none;width:100%;height:180px}
  .form-row{grid-template-columns:1fr}
  .footer-links{grid-template-columns:1fr 1fr}
}