/* ============================================================
   诗物集 SHIWUJI — 公共头部 / 底部样式（common.css）
   所有类名以 shw- 为前缀，避免与各页面自身样式冲突
   ============================================================ */

/* ---------- Header / Nav ---------- */
.shw-nav{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:20px 0;transition:all .4s ease;font-family:'DM Sans','Noto Sans SC',sans-serif}
.shw-nav.scrolled{padding:10px 0;background:rgba(245,249,242,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(45,160,104,0.15);box-shadow:0 2px 20px rgba(26,122,72,0.10)}
.shw-nav-inner{max-width:1280px;margin:0 auto;padding:0 40px;display:flex;align-items:center;justify-content:space-between;gap:20px}

.shw-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#16291a;white-space:nowrap;text-decoration:none}
.shw-logo-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#1a7a48 0%,#2da068 30%,#5ccc8e 70%,#8ee8b4 100%);display:flex;align-items:center;justify-content:center;animation:shwLogoPulse 3s ease-in-out infinite;flex-shrink:0}
.shw-logo-mark svg{width:22px;height:22px;fill:#fff}
@keyframes shwLogoPulse{0%,100%{transform:scale(1);box-shadow:0 0 0 0 rgba(45,160,104,0.25)}50%{transform:scale(1.05);box-shadow:0 0 0 8px transparent}}

.shw-nav-links{display:flex;gap:32px;align-items:center;list-style:none;margin:0;padding:0}
.shw-nav-links>li{position:relative}
.shw-nav-links>li>a{font-size:15px;color:#4a6b50;font-weight:500;position:relative;transition:color .3s;display:inline-flex;align-items:center;gap:4px;text-decoration:none}
.shw-nav-links>li>a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:#2da068;transition:width .3s ease}
.shw-nav-links>li>a:hover,.shw-nav-links>li>a.active{color:#2da068}
.shw-nav-links>li>a:hover::after,.shw-nav-links>li>a.active::after{width:100%}
.shw-caret{width:14px;height:14px;fill:currentColor;transition:transform .3s}

/* ---------- Nav 二级下拉菜单 ---------- */
.shw-sub{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(12px);opacity:0;visibility:hidden;transition:opacity .25s ease,transform .25s ease,visibility .25s;background:#fff;border:1px solid rgba(45,160,104,0.15);border-radius:16px;box-shadow:0 12px 40px rgba(26,122,72,0.12);padding:10px;min-width:172px;list-style:none;margin:0;display:flex;flex-direction:column;gap:2px}
.shw-sub::before{content:'';position:absolute;top:-14px;left:0;right:0;height:14px}
/* 下拉展开态仅限真实悬停设备，避免触屏 tap 触发 :hover 干扰移动端布局 */
@media(hover:hover){
  .shw-has-sub:hover>.shw-sub,.shw-has-sub:focus-within>.shw-sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
  .shw-has-sub:hover .shw-caret{transform:rotate(180deg)}
}
.shw-sub a{display:block;padding:9px 14px;border-radius:10px;font-size:14px;color:#4a6b50;font-weight:500;transition:background .2s,color .2s;white-space:nowrap;text-decoration:none}
.shw-sub a:hover,.shw-sub a.active{background:rgba(45,160,104,0.12);color:#1a7a48}

/* ---------- Nav CTA / 移动端按钮 ---------- */
.shw-nav-cta{padding:10px 24px;border:none;border-radius:30px;background:linear-gradient(135deg,#1a7a48 0%,#2da068 30%,#5ccc8e 70%,#8ee8b4 100%);color:#fff;font-size:14px;font-weight:600;cursor:pointer;position:relative;overflow:hidden;transition:transform .3s,box-shadow .3s;font-family:inherit;text-decoration:none;white-space:nowrap}
.shw-nav-cta:hover{box-shadow:0 8px 24px rgba(45,160,104,0.25);transform:translateY(-2px)}
.shw-mobile-toggle{display:none;font-size:24px;line-height:1;background:none;border:none;color:#16291a;cursor:pointer;padding:4px}

/* ---------- Footer ---------- */
.shw-footer{position:relative;z-index:2;padding:80px 0 0;font-family:'DM Sans','Noto Sans SC',sans-serif}
.shw-footer .shw-container{max-width:1280px;margin:0 auto;padding:0 40px}
.shw-footer-cta{background:linear-gradient(135deg,#1a7a48 0%,#2da068 30%,#5ccc8e 70%,#8ee8b4 100%);border-radius:28px;padding:60px;text-align:center;color:#fff;margin-bottom:60px;position:relative;overflow:hidden}
.shw-footer-cta::before{content:'';position:absolute;top:-50%;right:-20%;width:400px;height:400px;border-radius:50%;background:rgba(255,255,255,0.1)}
.shw-footer-cta::after{content:'';position:absolute;bottom:-30%;left:-10%;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,0.08)}
.shw-footer-cta h2{font-size:36px;font-weight:800;position:relative;z-index:1}
.shw-footer-cta p{font-size:16px;opacity:.9;margin-top:12px;position:relative;z-index:1}
.shw-btn-white{display:inline-flex;align-items:center;gap:8px;margin-top:28px;padding:14px 32px;border-radius:30px;background:#fff;color:#1a7a48;font-size:15px;font-weight:600;text-decoration:none;position:relative;z-index:1;transition:transform .3s,box-shadow .3s}
.shw-btn-white:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,0.15)}

.shw-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(45,160,104,0.15)}
.shw-footer-brand .shw-logo{margin-bottom:16px}
.shw-footer-brand p{font-size:14px;color:#7a9a80;line-height:1.7;max-width:300px}
.shw-footer-col h5{font-size:15px;font-weight:700;color:#16291a;margin-bottom:16px}
.shw-footer-col ul{list-style:none;margin:0;padding:0}
.shw-footer-col ul li{margin-bottom:10px}
.shw-footer-col ul li a{font-size:14px;color:#7a9a80;transition:color .3s;text-decoration:none}
.shw-footer-col ul li a:hover{color:#2da068}
.shw-footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:24px 0}
.shw-footer-bottom p,.shw-footer-bottom a{font-size:13px;color:#7a9a80}
.shw-footer-bottom a{transition:color .3s;text-decoration:none}
.shw-footer-bottom a:hover{color:#2da068}

/* ---------- Responsive 900px ---------- */
@media(max-width:900px){
  .shw-nav-inner{padding:0 24px}
  .shw-nav-links{display:none;position:absolute;top:100%;left:0;width:100%;background:rgba(245,249,242,0.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-direction:column;align-items:stretch;padding:20px 24px;gap:8px;border-bottom:1px solid rgba(45,160,104,0.15)}
  .shw-nav-links.open{display:flex}
  .shw-nav-links>li>a{display:flex;justify-content:space-between;width:100%;padding:8px 0;font-size:16px}
  .shw-nav-links>li>a::after{display:none}
  .shw-sub{position:static;transform:none;opacity:1;visibility:visible;display:none;box-shadow:none;border:none;background:rgba(45,160,104,0.06);border-radius:12px;margin-top:6px;padding:6px;min-width:0}
  .shw-sub::before{display:none}
  .shw-has-sub.open>.shw-sub{display:flex}
  /* 覆盖桌面端 :hover/:focus-within 规则，防止触屏 tap 后子菜单被 translateX 移出屏幕 */
  .shw-has-sub:hover>.shw-sub,.shw-has-sub:focus-within>.shw-sub{transform:none}
  .shw-has-sub.open .shw-caret{transform:rotate(180deg)}
  .shw-nav-cta{display:none}
  .shw-mobile-toggle{display:block}
  .shw-footer{padding:60px 0 0}
  .shw-footer .shw-container{padding:0 24px}
  .shw-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .shw-footer-cta{padding:40px 24px}
  .shw-footer-cta h2{font-size:24px}
  .shw-footer-bottom{flex-direction:column;gap:8px;text-align:center}
}

/* ---------- Responsive 500px ---------- */
@media(max-width:500px){
  .shw-nav-inner{padding:0 16px}
  .shw-footer .shw-container{padding:0 16px}
  .shw-footer-grid{grid-template-columns:1fr}
  .shw-footer-cta{padding:32px 20px}
  .shw-footer-cta h2{font-size:20px}
}